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Category: Blown Film Plant india

Multilayer Blown Film Line

August 25, 2017 • Mrunal Ramanuj

Multilayer Blown Film Line

Multilayer Blown Film Line India

Multilayer Blown Film Line Manufacturer

Multilayer Blown Film Line Exporter

Multilayer Blown Film Line Machine

Multilayer films are used for varied crucial application in flexible packaging, which demand vital film properties like dart impact strength, puncture resistance, hot tack strength, gloss, oxygen and moisture barrier etc.

Multilayer blown film material is comparatively strong than two layer and mono layer blown films. It has strong impact in packaging industry as this product bears multiple protection properties including puncture and heat resistant, less or zero attraction to moisture and oxygen, etc. Multilayer Blown Film Plant is suitable for producing high barrier wrapping and stuffing material for packing food products, processed fluid consistency food items, etc. Multilayer blown film line can also be produced with this machine.

Ocean extrusions Pvt Ltd is a leading plastic extrusion machinery manufacturer & exporter in India, having core expertise in comprehensive range of extrusion machinery for plastic including plastic extruder such as multi layer blown film plant, mono layer blown film plant, air bubble sheet plant, raffia tape stretching plant, extrusion coating lamination plant, co-extrusion two layer blown film plant, PP-TQ blown film plant, monofilament plant, sutli plant, PP box strapping line, HDPE box strapping line, PET box strapping line and plastic reprocessing plant. Ocean extrusions Pvt Ltd is a well known trusted name for providing customized solutions of plastic extrusion machinery.

Application:

  • Multilayer films are used for varied crucial application in flexible packaging, which demand vital film properties like dart impact strength, puncture resistance, hot tack strength, gloss, oxygen and moisture barrier etc.
  • Water Pouch Film
  • Milk Film
  • Edible Oil Film
  • Lamination Film
  • Liquid Packaging
  • Tea Packaging
  • Tomato Catch Up Packaging
  • Food Packaging Film
  • Stretch Cling Film

For More Detail:

Website: http://www.oceanextrusions.com/

http://www.oceanextrusion.com/

http://www.blownfilmline.in/

http://www.plasticextrusionmachinemanufacturer.com/

http://www.oceanextrusionsmachine.com/

blown film making machine INDIA

June 27, 2014 • Mrunal Ramanuj

blown film extrusion plant Blown Film Making Machine manufacturers

June 6, 2014 • Mrunal Ramanuj

blown film extrusion plant Blown Film Making Machine manufacturers

Complete blown film extrusion lines for mono layer, and complex multi-layer films of HDPE, MDPE, LDPE, LLDPE, EVA, and PP. We have set out various series of specific blown film lines for processing different material and applications.
Blown Film Extrusion Line is the best choice for maximum volume and top quality output. Distinctive new screw design with automatic winder for high capacity output and efficiency.

blown film plant

Two Layer Blown Film Extrusion Lines with the best combination

Blown Film Plant
www.oceanextrusions.com

Two layer blown film Line has a great demand in global market for its wide range of packaging products that can be produced from it. Two layer blown film machine is an economical solution to create moderate barrier films for shopping bags, crop covers, carry bags used in textile sector, etc. It consumers low power and when it www.oceanextrusions.comcomes to return on investment, packaging industry can made good and fast profit. Similarly, two layer blown film line materials can also be produced from this single plant.

Two Layer Blown Film Extrusion Lines with the best combination of technology and performance. These low investment, power efficient, high – speed plants can give processors the competitive edge and quick return on their investment.
Two layer blown film Line has a great demand in global market for its wide range of packaging products that can be produced from it. Two layer blown film machine is an economical solution to create moderate barrier films for shopping bags, crop covers, carry bags used in textile sector, etc. It consumers low power and when it comes to return on investment, packaging industry can made good and fast profit. Similarly, two layer blown film line materials can also be produced from this single plant

https://www.youtube.com/watch?v=7S0_cCLssdgWatch Full Movie Online Streaming Online and Download

This process is the same as a regular extrusion process up until the die. There are three main types of dies used in this process: annular (or crosshead), spider, and spiral. Annular dies are the simplest, and rely on the polymer melt channeling around the entire cross section of the die before exiting the die; this can result in uneven flow. Spider dies consist of a central mandrel attached to the outer die ring via a number of “legs”; while flow is more symmetrical than in annular dies, a number of weld lines are produced which weaken the film. Spiral dies remove the issue of weld lines and asymmetrical flow, but are by far the most complex.
The melt is cooled somewhat before leaving the die to yield a weak semi-solid tube. This tube’s diameter is rapidly expanded via air pressure, and the tube is drawn upwards with rollers, yielding the plastic in both the transverse and draw directions. The drawing and blowing cause the film to be thinner than the extruded tube, and also preferentially aligns the polymer molecular chains in the direction that sees the most plastic strain. If the film is drawn more than it is blown (the final tube diameter is close to the extruded diameter) the polymer molecules will be highly aligned with the draw direction, making a film that is strong in that direction, but weak in the transverse direction. A film that has significantly larger diameter than the extruded diameter will have more strength in the transverse direction, but less in the draw direction.
In the case of polyethylene and other semi-crystalline polymers, as the film cools it crystallizes at what is known as the frost line. As the film continues to cool, it is drawn through several sets of nip rollers to flatten it into lay-flat tubing, which can then be spooled or cut.

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Blown Film Plant

 

Blown Film Extrusion Lines with the best combination of technology and performance. These low investment, power efficient, high – speed plants can give processors the competitive edge and quick return on their investment.

Two layer blown film Line has a great demand in global market for its wide range of packaging products that can be produced from it. Two layer blown film machine is an economical solution to create moderate barrier films for shopping bags, crop covers, carry bags used in textile sector, etc. It consumers low power and when it comes to return on investment, packaging industry can made good and fast profit. Similarly, two layer blown film line materials can also be produced from this single plant.
Application of Two Layer Blown Film Line

 

BLOWN FILM MAKING MACHINE, MONO LAYER, MULTI LAYER, ABA – INDIA

June 1, 2014 • Mrunal Ramanuj

BLOWN FILM MAKING MACHINE

<s0″>pan style=”font-size: xx-small;”>CO-EXTRUDED MULTILAYER FILM

Location of the unit:

         Location of the unit must be based on availability of infrastructural facilities such as electricity, water, transport & communication, bank etc. are also available. 900 ft² additional shed making a total plinth area of 1800 ft². to accommodate the project.

Plant & Equipment:

         Principal items of plant and equipment needed for the manufacture of co-extruded blown film is as follows: –

i) Co-extrusion film plant
ii) Corona surface treating equipment
iii) Rotogravure printing machine
iv) Co-extrusion film plant

         Co-extrusion means, combining more than one material by means of plasticizing extrusion into a unit structure in such a way that the materials will constitute distinct layers. As the co-extrusion technique is relatively a new one, special care is to be taken in the selection and procurement of the plant.

The plant essentially consists of two single screw extruders, a control panel with separate thyrister control panel for each drive motors and a heating panel for all zone heaters, film die assembly, air cooling ring and blowers, an oscillating platform which can oscillate through 300 each way, take off tower unit, trimming attachment, a two station surface winder having a roller width of 800 mm. The machine and equipment are suitable for operation on 400/440volts, 3 phases with neutral 50 cycles AC supply. All electrical heaters are single phase but the load is distributed for 3-phase supply through control cabinet. Total power load required is 85 KW.watch The Magnificent Seven 2016 film now

Corona Surface treating equipment:

         Plastics in general and polyolefin’s in particular have got a tendency to reject printing inks from their un-polarized surfaces. Hence it is necessary to polarize the surface of the film by this pre-treatment so that during printing the necessary level of adhesion is achieved.
This equipment consists of a solid-state theater, HT transformer, and special oil for above transformer, enclosed type roller assembly, an extra pair special dielectric sleeve, one extra zone extraction unit etc/

Rotogravure printing machine:

         The printing machine is specially designed in such a way that all the printing units are identical with the possibility that additional color can be attached. The machine is equipped with DC motor coupled to a thyrister converter to operate on AC mains.

Raw materials:

         Plastic raw materials such as LDPE, LLDPE, HDPE, PP, and Nylon etc. can be used for the manufacture of co-extruded film depending upon the end use of the product. Since milk pouches are generally a two-layer film (LDPE/LDPE) and the project envisages production of plastic film for milk pouches, the requirement is only LDPE. The other important raw materials required are butanol, solvent IPA and gravure printing ink.

Marketability and Scope:

         Co-extruded films find extensive use in the manufacture of pouches for packaging of various edible consumer items like milk, ghee, oils, snacks etc. It is estimated that in India about 80% of co-extruded films are being consumed for milk pouches and ghee pouches. The market for blown films is expanding and it is envisaged that more and more items would be brought under this material for packaging purposes.

Basis and Presumptions:

        The efficiency of the unit is calculated at 80% of the total production capacity.
The unit will work 25 days in a month of 3 shifts and 300 days in a year.
The time period for achieving the full envisaged capacity utilization is one year.
The labor wages are as per the prevailing rates in the market.
The rate of interest for fixed and working capital is taken @ 14%.
The margin money requirement for this project is 25%.
The pay back period of this project is 5 years.
The land area is 500m and the constructed area is 250 m.

Implementation Schedule:

Preparation of project report
2 months
Selection of site
1 months
Registration as SSI
1 weeks
Acquiring loan
3 months
Machinery procurement, erection and commissioning
2 months
Recruitment of labors etc.
1 months
Trial runs
1 months

Process of Manufacture:

        Raw materials are fed into the hopper, which gets heated in the barrel with the help of the heater
The melt in the extruders is conveyed forwarded by the screw rotation
The 2 extruders individually feed the 2 channels within the die
All the flow channels coverage into a single flow channel, just a little distance before the material is blown out from the annular die orifice
The rotating die ensures even distribution of the melt flow while coming out of the die orifice
The rotating die ensures even distribution of the melt flow while coming out of the die orifice
The bubble is cooled by means of air circulation arrangements
The pre-determined size of the blown film is obtained by inserting compressed air through the die.
Iris rings, flattering boards, counter rotating nip rolls draw the film upwards and flatten it into a two layer lay flat film, which is wound on the winder.
The film is also treated with corona discharge equipment and then printed in rotogravure printing machine in desired colors.

Quality Control and Standards

         IS 10141: 1982/1997 or as per customers specification

Production Capacity (per annum)

        a)         Quantity      630 MT
b)         Value         441.00 lakhs

Motive Power

         The total connected load of the unit is 150 KWH. Assume 60% utilization of the connected load.

Pollution control:

         This unit has not been identified on the pollution making industry. However, proper ventilation of the working shed may be assured.

Energy Conservation

         Production by proper planning may save the energy.

Financial Aspects

A. Fixed Capital
i) Land and Building

Area
Rate Rs. / m
Value (Rs.)
Land
500
Working Shed
250
Offices and Stores
100
Rented
15,000

         ii) Machinery and Equipments

Sl.No.
Description
Qty. (Nos.)
Values (Rs.)
1
Co-extrusion Blown film plant
1
28,00,000
2
Corona surface treatment plant
1
2,50,000
3
Rotogravure machine
1
6,00,000
4
Slitter-cum- re-grinder machine
1
1,50,000
5
Testing equipment
LS
50,000
6
Electrification and Installation charges @ 10% of cost
3,85,000
7
Total cost of machinery and equipment
42,35,000
8
Cost of office equipment, working table etc.
50,000

         iii) Pre-operative Expenses: 20,000
Fixed Capital = 43, 20,000/-

B. Working Capital (per month)

i) Personnel

Designation
Nos.
Salary (Rs.)
Total (Rs.)
Manager
1
12,000
12,000
Machine Operator
2
6,000
12,000
Skilled Workers
3
3,000
9,000
Clerck-cum-Accountant
1
5,000
5,000
Unskilled Workers
3
1,500
4,500
Peon
1
1,500
1,500
Total
44,000
Perquisites @ 15% of salaries
6,600
Total
50,600
Or
Say
50,000

ii) Raw materials including Packaging requirement (PM)

Particulars
Qty.
Rate / Kg.
Values (Rs.)
LDPE
52,500
50
26,25,000
Printing Ink
50,000
Packaging Material
5,000
Total
26,28,000

iii) Utilities (per month)

        Power 96 KW x 500 hrs. x Rs.4 x 0.6 utilization———- 1,15,200
Water —————————————————–2,000
        Total —————————————————————-1,17,000

iv) Other Expenses (per month)

Other contingent expenses (per month)
Rs.
Rent
15,000
Postage and Stationery
10,000
Telephone
2,000
Consumable Store
1,000
Repair and Maintenance
1,000
Transportation Charge
10,000
Advertisement and Publicity
1,000
Insurance
4,000
35,000

v) Total Recurring Expenditure

Staff & Labor
Rae Material
Utilities
Other expenses
Total
For 3 Months

C. Total Capital Investment

        1. Fixed Capital —————–43, 20,000
2. Working Capital ————–86,46,000
Total —————————-1,29,66,000

Machinery Utilization

        Co-extrusion process will be the bottleneck operation for this project. The production capacity is 105 kegs. /hr.

i) Cost of Production (per year)

Cost of Production (per year)
Rs.
Total recurring cost
3,45,84,000
Depreciation on machineries @ 10%
4,23,500
Depreciation on office equipment @ 20%
10,000
Interest on total capital investment @ 14%
18,15,240
Total
3,68,32,740
or
Say
3,68,33,000

ii) Turnover (per year)

Item
Qty.(MT)
Rate / Kg.
Value (Rs.)
Co-extruded film
617
70,000
4,31,90,000
Scrap
13
20,000
2,60,000
4,34,50,000

iii) Net Profit (per year)

        Turn over – cost of production = 4,34,50,000 – 3,68,33,000
= 66,17,000

iv) Net Profit Ratio

        Net Profit per year x 100 / Turnover

        = 66, 17,000 x 100 / 4,34,50,000

        = 15.23 %

v) Rate of Return

        Net profit per year x 100 / Total Investment

        = 66, 17,000 x 100 / 1,29,66,000

        = 51.03 %

VI) Breakeven Point (% of Total Production Envisaged)

1
Fixed Cost
Rs.
a)
Depreciation on machinery and equipment
4,23,500
b)
Depreciation on Office Equipment
10,000
c)
Rent
1,80,000
d)
Interest on Capital Investment
18,15,240
e)
Insurance
48,000
f)
40% of Salary and Wages
2,40,000
g)
40% of other expenses
1,68,000
Total
28,84,740
or
Say
28,85,000

B.E.P. = Fixed Cost x 100 / Fixed Cost + Profit

        = 28,85,000 x 100 / 28,85,000 + 66,17,000

        = 28,85,000 x 100 / 95,01,740

        = 30.36 %

 

Blow extrusion of plastic film

The manufacture of plastic film for products such as shopping bags and continuous sheeting is achieved using a blown film line.

This process is the same as a regular extrusion process up until the die. There are three main types of dies used in this process: annular (or crosshead), spider, and spiral. Annular dies are the simplest, and rely on the polymer melt channeling around the entire cross section of the die before exiting the die; this can result in uneven flow. Spider dies consist of a central mandrel attached to the outer die ring via a number of “legs”; while flow is more symmetrical than in annular dies, a number of weld lines are produced which weaken the film. Spiral dies remove the issue of weld lines and asymmetrical flow, but are by far the most complex.

The melt is cooled somewhat before leaving the die to yield a weak semi-solid tube. This tube’s diameter is rapidly expanded via air pressure, and the tube is drawn upwards with rollers, yielding the plastic in both the transverse and draw directions. The drawing and blowing cause the film to be thinner than the extruded tube, and also preferentially aligns the polymer molecular chains in the direction that sees the most plastic strain. If the film is drawn more than it is blown (the final tube diameter is close to the extruded diameter) the polymer molecules will be highly aligned with the draw direction, making a film that is strong in that direction, but weak in the transverse direction. A film that has significantly larger diameter than the extruded diameter will have more strength in the transverse direction, but less in the draw direction.

In the case of polyethylene and other semi-crystalline polymers, as the film cools it crystallizes at what is known as the frost line. As the film continues to cool, it is drawn through several sets of nip rollers to flatten it into lay-flat tubing, which can then be spooled or cut.

Sheet/film extrusion

Sheet/film extrusion is used to extrude plastic sheets or films that are too thick to be blown. There are two types of dies used: T-shaped and coat hanger. The purpose of these dies is to reorient and guide the flow of polymer melt from a single round output from the extruder to a thin, flat planar flow. In both die types ensure constant, uniform flow across the entire cross sectional area of the die. Cooling is typically achieved by pulling through a set of cooling rolls (calender or “chill” rolls). In sheet extrusion, these rolls not only deliver the necessary cooling but also determine sheet thickness and surface texture.[6] Often co-extrusion is used to apply one or more layers on top of a base material to obtain specific properties such as UV-absorption, texture, oxygen permeation resistance, or energy reflection.

A common post-extrusion process for plastic sheet stock is thermoforming, where the sheet is heated until soft (plastic), and formed via a mold into a new shape. When vacuum is used, this is often described as vacuum forming. Orientation (i.e. ability/ available density of the sheet to be drawn to the mold which can vary in depths from 1 to 36 inches typically) is highly important and greatly affects forming cycle times for most plastics.

Tubing extrusion

Blown Film Plant

Mono Layer Blown Film Extrusion lines, Multi Layer Blown Film blown film extrusion lines for mono layer, and complex multi-layer films of HM LD PP HDPE, MDPE, LDPE, LLDPE, EVA monolayer blown film plants, multilayer blown film plant Blown Film Extrusion Machine blown film machine, plastic bag making machine, film extrusion machine, flexo printing machine, stretch film Plastic Film Extruder, Blown Film Extruder, Film Blowing Machines, Blown Film Lines, Laboratory Extruders, Bag Making Machines

May 29, 2014 • Mrunal Ramanuj

Operate A Mono Layer Blown Film Extrusion Lines, Extrusion Machine Operate a blown film extrusion Plant for co-extrusion production Mono Layer Blown Film Extrusion lines, Multi Layer Blown Film blown film extrusion lines for mono layer, and complex multi-layer films of HM LD PP HDPE, MDPE, LDPE, LLDPE, EVA  monolayer blown film plants, multilayer blown film plant Blown Film Extrusion Machine blown film machine, plastic bag making machine, film extrusion machine, flexo printing machine, stretch film Plastic Film Extruder, Blown Film Extruder, Film Blowing Machines, Blown Film Lines, Laboratory Extruders, Bag Making Machines Multi-Layer Blown Film Plant- Among the different types of blown film plants and relative plastic extrusion machinery a multi-layer blown film plant can stay a best option for co extruder feature. There are advanced features added to multi layer blown film machinery such as the grooved feed barrel, dosing system, rotating die, automatic bubble cage, etc which helps in experiencing high productivity as well as better quality. Packaging for confectionaries, dairy products, fast foods, can be produced in addition to general types of food packaging requirements. Click here for the finest quality multi layer blown film plant. Visit –

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What is Blown Film Extrusion? 



  • Blown Film Extrusion is one of the most common polymer conversion processes in the world
  • Film is made by extruding molten plastic through a circular die, forming an inflated tubular bubble that moves through a cage as it cools, that is then collapsed and formed into rolls
  • The typical film blowing process consists of a series of stages, including extrusion, blowing, collapsing, and winding

HIPF Course Description


Course Objective

At the end of the course, the trainees will be able to:

  • Develop a working knowledge of and learn how to operate a Blown Film Extrusion machine
  • Understand the basics of blown film technology, the common material used, and some common problem solving situations
  • Analyze and solve practical blown film problems
  • Develop a working knowledge on maintaining a blown film machine

Course Outline

    1. Principles of Blown Film Extrusion

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      Definition and Principle; Product and Applications; Film Fabrication Process; Types of Blown Film Machines
    1. Resin Materials for Blown Film

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      Raw Materials Use for Blown Film Extrusion; Three Common Polyethylene Grades Used for Blown Film; Suitable Grade index for Blown Film
    1. Safety Education for Blown Film Operation

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      Safety Guideline and SOP; Personal Protective Equipment (PPE); Safety Devices; Warning Signs; Safety Rules for Operation; Safety Instructions on Operation
    1. The Main Components of Blown Film Machine

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      The Extruder; The Die Head and Die; The Bubble Cooling System; Bubble Stabilizer; The Take-Off System/Pinch or Nip Rolls; The Wind-Up System; Corona Treatment
    1. Die and Air Ring as Major Components for Blown Film

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      Kinds of Die for Blown Film; Details of Die and How It Works; Details of Air Ring and How It Works; Die and Air Ring Care and Maintenance
    1. Introduction to the Blown Film Extrusion Machine

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      BFE Process Flow; Start-Up of Blown Film Line; Quality Control for Blown Film; Scheduled Shut-Down of Blown Film Line; Emergency Shut-Down of Blown Film Line; Switching On After Emergency Stop
    1. Operating Skills for Blown Film Extrusion Technology

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      Checking of Machine Conditions Before Operation; Winder Preparations; Film Guide Set-Up and Importance; Blown Film Run Preparations; Die Checking and Adjustments; Parameter Setting-Up; Switching On After Emergency Stop; Changing Die; Changing Materials and Filling Procedures
    1. Die Dismantling, Cleaning and Mounting

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      Die Dismantling Procedure; Die Cleaning and Care; Understand Die Assembly and Mounting
    1. Blown Film Extrusion Troubleshooting

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      Types of Trouble of Blown Film Process; Unstable Bubble; Film Appearance; Machine Malfunction
    1. Common Secondary Film Processing Methods

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      Printing; Bag Making Process; Scrap Recycling
    1. Quality Control of Blown Film

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      Quality Check for Blown Film; Production Recording; How To Report the Result of Manufacturing
  1. Practice Plant Operations

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provides the blown film industry with the latest in high “value added” technologies. Since 1989, DRJ has established industry standards in internal bubble cooling (IBC) control, width control, and machine direction sealing technologies and continues to develop innovations that make our customers more competitive and more profitable.The quickest way to get to know about us is to view this 4 minute video. It describes our company, our industry and how our products ensure that you add value to your bottom line.

Next if you are interested in IBC technology, click on the Getting Started link below. You can also click on the blown film line picture to see specific details. Don’t forget our Products link to see everything we do to provide solutions not just answers for your blown film processing requirements.

Blown Film Extrusion Line

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  1. This processing guide focuses on how to produce films made from either high density polyethylene (HDPE) or linear low density polyethylene (LLDPE) resins.The HDPE FILM Resins section covers key terms and experience specific to polyethylene resins in

    general, and HDPE resins specifically. It is organized into five subsections:
    A.

    B. C. D. E.

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    Blown Film Extrusion

    Blow-Up Ratio

    Extrusion Conditions

    Processing Conditions

    Extruder And Die Temperature Settings
    The LLDPE Film Resins section covers key terms and experience specific to LLDPE resins. It is organized

    into two subsections:

    A. Blown Film Extrusion

    B. Extruder And Die Temperature Settings

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    In addition, Table 1 presents a very useful polyethylene film processing troubleshooting guide.

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    The information, terminology and experience provided in this guide compile many years of technical

    and operational knowledge into one handy resource, useful in most situations most of the time. For

    more in-depth processing and troubleshooting assistance,

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Polyethylene Film Processing Guide

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I. HDPE FILM RESINS

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high density polyethylene (HDPE) resins for

mainly blown film applications. The workhorse of Formosa Plastic’s HDPE film resins is the Formolene®

High Molecular Weight High Density Polyethylene (HMW-HDPE) resin product line, which is produced

using a unique Nippon Petrochemical bimodal process. These HMW-HDPE film products are designed to

have a broad, bimodal Molecular Weight Distribution (MWD) that provides both excellent extrusion processing and physical film properties.

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Formosa Plastics also produces a family of conventional HDPE film resins from

process. These HDPE film resins from this process are categorized into two types of resins: Medium Molecular Weight High Density Polyethylene (MMW-HDPE) film resins and MMW-HDPE Moisture Vapor Transmission Rate (MVTR) barrier film resins.

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HMW HDPE film resins range in density from 0.949 to 0.953 with a melt

index ranging from 0.040 to 0.15. These resins are designed with different melt index, density and/or additive packages for a variety of applications. Technical Data Sheets for these products are available at www.fpcusa.com/pe/index.html.

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Films produced with HMW and MMW HDPE resins exhibit high impact and film stiffness, as well as good

tear strength and excellent tensile strength. The combination of a broad, bimodal MWD, low melt index

and high density of the Formolene® brand HDPE film resins provide an excellent balance of film performance properties for a variety of film applications.

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HDPE film resins are easily processed into very thin gauge films as low as 6 microns

(0.25 mils), as well as into heavy gauge films on the order of 96 microns (4.0 mils) or greater. The

broad MWD of Formolene® brand HDPE film resins enables them to be processed at lower melt

temperatures than competitive HMW HDPE blown film resins. This provides for better bubble stability and gauge control, as well as improved energy savings.

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HDPE film resins are designed with excellent stabilization packages to protect the

integrity of the polymer from degradation, especially for applications requiring a high level of trim

recycle such as grocery bags commonly referred to as “T-Shirt” bags due to their resemblance to the undergarment.

Polyethylene Film Processing Troubleshooting Guide
Common film processing problems and possible corrective actions
1. Low Dart Impact 5. Gels, Holes, Bubble Breaks 9. Low Extruder Output
2. Low MD Tear; Split Film 6. High Gauge Variation 10. High Extruder Pressure
3. Melt Fracture 7. Die Line 11. Poor Roll Geometry
4. Poor Bubble Stability 8. Port Line
Abbreviations: BUR = Blow-Up Ratio MD = Machine Direction MI = Melt Index
Problem Observed Possible Causes Possible Corrective Actions
1. Low Dart Impact 1. High melt temperature
2. Inadequate cooling
1. Reduce melt temperature
2. Increase cooling, neck height, BUR
2. Low MD Tear / Split Film 1. Too much film orientation
2. Resin density too high
3. Thermal degradation of the
polymer during extrusion
1a. Increase BUR
1b. Decrease die gap
1c. Increase frost line height
2. Use a lower density resin
3a. Decrease melt temperature
3b. Add an antioxidant masterbatch
3. Melt Fracture 1. Low extrusion temperature
2. Inadequate die gap
3. Excessive friction at die lip
4. Resin MI too low for extrusion
conditions or equipment
1. Increase melt temperature
2. Increase die gap
3a. Lower processing rate
3b. Add processing aid to reduce COF
4. Use a higher melt flow resin
4. Poor Bubble Stability 1. Melt temperature to high
2. Too much or too little cooling air
3. MI too high for process
4. Output rate too high
5. Misalignment of nip rolls
1. Reduce melt temperature
2. Adjust cooling air
3. Lower processing rate
4. Reduce output rate
5. Realign nip rolls
5. Gels, Holes, Bubble Breaks 1. Contamination
2. Excessive regrind or reprocessed
material
3. Dirty screw, die or screen pack
4. Poor mixing
1. Check for contamination in silos, transfer
systems, colors and other masterbatches
2. Stop or reduce the ratio of regrind and
reprocessed material until problem improves
3. Clean screw and die plus change screen pack
4a. Check screw
4b. Check heater bands and thermocouples
6. High Gauge Variation 1. Dirty screw, die or screen pack
2. Uneven cooling
1a. Clean screw and die plus change screen pack
1b. Clean die
2. Check temperature settings & recalibrate
7. Die LIne 1. Dirty or damaged die lip
2. Insufficient purging
1. Clean or repair die
2. Increase purge time between transitions
8. Port lines 1. Resin viscosity too high for die
design
2. Die and melt temperature off
3. Melt temperature too low
1a. Use a resin with a higher MI
1b. Consider using a processing aid
2. Narrow the temperature differences between
the die and polymer melt temperature
3. Increase the melt temperature
9. Low Extruder Output 1. Melt temperature too high

1a. Reduce melt temperature.
1b. Check external cooling.
1c. Check extruder screw wear.
10. High Extruder Pressure 1. Contamination 1a. Check extruder heaters, screen pack.
1b. Check for contamination.
11. Poor Roll Geometry 1. Poor bubble stability 1a. Reduce melt temperature.
1b. Increase cooling, die temperature.
1c. Clean die.Blown Film Plant

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B. BLOW-UP-RATIO (BUR) AND POLYMER ORIENTATION

To produce the best physical properties in an extruded film, the proper balance of film orientation in
the machine and transverse direction of a film must be achieved. This relationship is achieved by
adjusting the blow up ratio of the film. The blow up ratio (BUR) is the ratio of bubble diameter to the
die diameter; it indicates the amount of stretching the polymer is undergoing during the shaping of the
film.
Blow Up Ratio (BUR) = (0.637 x Lay-Flat Width) / Die Diameter
Where:
 Lay-Flat is the width of the collapsed film
 Die Diameter is the fixed diameter of a given die

The HMW-HDPE blown film lines typically have small diameter dies to achieve the relatively high BUR
ratios required to obtain optimum film properties. Other polyethylene resins, such as low density
polyethylene (LDPE) and linear low density (LLDPE) resins, normally operate at much lower BURs of 2 to
3. The typical die gaps for HDPE blown film lines are 1.0 to 1.5 mm (40 to 60 mils), which are narrower
than die gaps used for conventional LDPE and LLDPE blown film lines.

As shown in Figure 1 below, HDPE blown films lines have a very unique “High Stalk” bubble shape. The
stalk height recommended for HMW HDPE blown film lines is 7 times to 9 times the die diameter. The
characteristic high stalk bubble shape used for HMW-HDPE Blown film production results in a very high
frost line, which is the transitional phase from molten polymer to solid film. A high frost line enables
the polymer to achieve a balance of film properties by imparting more bi-axial molecular orientation in
the film in the transverse direction (TD) to match the machine direction (MD) orientation.

Figure 1
HMW HDPE AND LLDPE BLOWN FILM

Bi-axial orientation of the polymer molecules in a blown film is important to achieve a balance of the
film’s physical properties. Bi-axial orientation of HDPE blown film is much more difficult than with
either LDPE or LLDPE blown film due to the inherent differences of the polymer structures. Long side
chain molecular branching is prevalent in LDPE and to a lesser degree in LLDPE, but HDPE has very few

 Watch Full Movie Online Streaming Online and Download

Mono Layer Blown Film Extrusion Lines, Extrusion Machine

May 29, 2014 • Mrunal Ramanuj

  Mono Layer Blown Film Extrusion Lines, Extrusion Machine 

Operate A Mono Layer Blown Film Extrusion Lines, Extrusion Machine Operate a blown film extrusion Plant for co-extrusion productionAll Product

What is Blown Film Extrusion?



  • Blown Film Extrusion is one of the most common polymer conversion processes in the world
  • Film is made by extruding molten plastic through a circular die, forming an inflated tubular bubble that moves through a cage as it cools, that is then collapsed and formed into rolls
  • The typical film blowing process consists of a series of stages, including extrusion, blowing, collapsing, and winding

HIPF Course Description


Course Objective

At the end of the course, the trainees will be able to:

  • Develop a working knowledge of and learn how to operate a Blown Film Extrusion machine
  • Understand the basics of blown film technology, the common material used, and some common problem solving situations
  • Analyze and solve practical blown film problems
  • Develop a working knowledge on maintaining a blown film machine

Course Outline

    1. Principles of Blown Film Extrusion

 

      Definition and Principle; Product and Applications; Film Fabrication Process; Types of Blown Film Machines
    1. Resin Materials for Blown Film

 

      Raw Materials Use for Blown Film Extrusion; Three Common Polyethylene Grades Used for Blown Film; Suitable Grade index for Blown Film
    1. Safety Education for Blown Film Operation

 

      Safety Guideline and SOP; Personal Protective Equipment (PPE); Safety Devices; Warning Signs; Safety Rules for Operation; Safety Instructions on Operation
    1. The Main Components of Blown Film Machine

 

      The Extruder; The Die Head and Die; The Bubble Cooling System; Bubble Stabilizer; The Take-Off System/Pinch or Nip Rolls; The Wind-Up System; Corona Treatment
    1. Die and Air Ring as Major Components for Blown Film

 

      Kinds of Die for Blown Film; Details of Die and How It Works; Details of Air Ring and How It Works; Die and Air Ring Care and Maintenance
    1. Introduction to the Blown Film Extrusion Machine

 

      BFE Process Flow; Start-Up of Blown Film Line; Quality Control for Blown Film; Scheduled Shut-Down of Blown Film Line; Emergency Shut-Down of Blown Film Line; Switching On After Emergency Stop
    1. Operating Skills for Blown Film Extrusion Technology

 

      Checking of Machine Conditions Before Operation; Winder Preparations; Film Guide Set-Up and Importance; Blown Film Run Preparations; Die Checking and Adjustments; Parameter Setting-Up; Switching On After Emergency Stop; Changing Die; Changing Materials and Filling Procedures
    1. Die Dismantling, Cleaning and Mounting

 

      Die Dismantling Procedure; Die Cleaning and Care; Understand Die Assembly and Mounting
    1. Blown Film Extrusion Troubleshooting

 

      Types of Trouble of Blown Film Process; Unstable Bubble; Film Appearance; Machine Malfunction
    1. Common Secondary Film Processing Methods

 

      Printing; Bag Making Process; Scrap Recycling
    1. Quality Control of Blown Film

 

      Quality Check for Blown Film; Production Recording; How To Report the Result of Manufacturing
  1. Practice Plant Operations

 

provides the blown film industry with the latest in high “value added” technologies. Since 1989, DRJ has established industry standards in internal bubble cooling (IBC) control, width control, and machine direction sealing technologies and continues to develop innovations that make our customers more competitive and more profitable.

The quickest way to get to know about us is to view this 4 minute video. It describes our company, our industry and how our products ensure that you add value to your bottom line.

Next if you are interested in IBC technology, click on the Getting Started link below. You can also click on the blown film line picture to see specific details. Don’t forget our Products link to see everything we do to provide solutions not just answers for your blown film processing requirements.Blown Film Extrusion Line

 

  1. This processing guide focuses on how to produce films made from either high density polyethylene (HDPE) or linear low density polyethylene (LLDPE) resins. 

    The HDPE FILM Resins section covers key terms and experience specific to polyethylene resins in

    general, and HDPE resins specifically. It is organized into five subsections:
    A.

    B. C. D. E.

     

    Blown Film Extrusion

    Blow-Up Ratio

    Extrusion Conditions

    Processing Conditions

    Extruder And Die Temperature Settings
    The LLDPE Film Resins section covers key terms and experience specific to LLDPE resins. It is organized

    into two subsections:

    A. Blown Film Extrusion

    B. Extruder And Die Temperature Settings

     

    In addition, Table 1 presents a very useful polyethylene film processing troubleshooting guide.

     

    The information, terminology and experience provided in this guide compile many years of technical

    and operational knowledge into one handy resource, useful in most situations most of the time. For

    more in-depth processing and troubleshooting assistance,

 

Polyethylene Film Processing Guide

 

 

I. HDPE FILM RESINS

 

high density polyethylene (HDPE) resins for

mainly blown film applications. The workhorse of Formosa Plastic’s HDPE film resins is the Formolene®

High Molecular Weight High Density Polyethylene (HMW-HDPE) resin product line, which is produced

using a unique Nippon Petrochemical bimodal process. These HMW-HDPE film products are designed to

have a broad, bimodal Molecular Weight Distribution (MWD) that provides both excellent extrusion processing and physical film properties.

 

Formosa Plastics also produces a family of conventional HDPE film resins from

process. These HDPE film resins from this process are categorized into two types of resins: Medium Molecular Weight High Density Polyethylene (MMW-HDPE) film resins and MMW-HDPE Moisture Vapor Transmission Rate (MVTR) barrier film resins.

 

HMW HDPE film resins range in density from 0.949 to 0.953 with a melt

index ranging from 0.040 to 0.15. These resins are designed with different melt index, density and/or additive packages for a variety of applications. Technical Data Sheets for these products are available at www.fpcusa.com/pe/index.html.

 

Films produced with HMW and MMW HDPE resins exhibit high impact and film stiffness, as well as good

tear strength and excellent tensile strength. The combination of a broad, bimodal MWD, low melt index

and high density of the Formolene® brand HDPE film resins provide an excellent balance of film performance properties for a variety of film applications.

 

HDPE film resins are easily processed into very thin gauge films as low as 6 microns

(0.25 mils), as well as into heavy gauge films on the order of 96 microns (4.0 mils) or greater. The

broad MWD of Formolene® brand HDPE film resins enables them to be processed at lower melt

temperatures than competitive HMW HDPE blown film resins. This provides for better bubble stability and gauge control, as well as improved energy savings.

 

HDPE film resins are designed with excellent stabilization packages to protect the

integrity of the polymer from degradation, especially for applications requiring a high level of trim

recycle such as grocery bags commonly referred to as “T-Shirt” bags due to their resemblance to the undergarment.

Polyethylene Film Processing Troubleshooting Guide
Common film processing problems and possible corrective actions
1. Low Dart Impact 5. Gels, Holes, Bubble Breaks 9. Low Extruder Output
2. Low MD Tear; Split Film 6. High Gauge Variation 10. High Extruder Pressure
3. Melt Fracture 7. Die Line 11. Poor Roll Geometry
4. Poor Bubble Stability 8. Port Line
Abbreviations: BUR = Blow-Up Ratio MD = Machine Direction MI = Melt Index
Problem Observed Possible Causes Possible Corrective Actions
1. Low Dart Impact 1. High melt temperature
2. Inadequate cooling
1. Reduce melt temperature
2. Increase cooling, neck height, BUR
2. Low MD Tear / Split Film 1. Too much film orientation
2. Resin density too high
3. Thermal degradation of the
polymer during extrusion
1a. Increase BUR
1b. Decrease die gap
1c. Increase frost line height
2. Use a lower density resin
3a. Decrease melt temperature
3b. Add an antioxidant masterbatch
3. Melt Fracture 1. Low extrusion temperature
2. Inadequate die gap
3. Excessive friction at die lip
4. Resin MI too low for extrusion
conditions or equipment
1. Increase melt temperature
2. Increase die gap
3a. Lower processing rate
3b. Add processing aid to reduce COF
4. Use a higher melt flow resin
4. Poor Bubble Stability 1. Melt temperature to high
2. Too much or too little cooling air
3. MI too high for process
4. Output rate too high
5. Misalignment of nip rolls
1. Reduce melt temperature
2. Adjust cooling air
3. Lower processing rate
4. Reduce output rate
5. Realign nip rolls
5. Gels, Holes, Bubble Breaks 1. Contamination
2. Excessive regrind or reprocessed
material
3. Dirty screw, die or screen pack
4. Poor mixing
1. Check for contamination in silos, transfer
systems, colors and other masterbatches
2. Stop or reduce the ratio of regrind and
reprocessed material until problem improves
3. Clean screw and die plus change screen pack
4a. Check screw
4b. Check heater bands and thermocouples
6. High Gauge Variation 1. Dirty screw, die or screen pack
2. Uneven cooling
1a. Clean screw and die plus change screen pack
1b. Clean die
2. Check temperature settings & recalibrate
7. Die LIne 1. Dirty or damaged die lip
2. Insufficient purging
1. Clean or repair die
2. Increase purge time between transitions
8. Port lines 1. Resin viscosity too high for die
design
2. Die and melt temperature off
3. Melt temperature too low
1a. Use a resin with a higher MI
1b. Consider using a processing aid
2. Narrow the temperature differences between
the die and polymer melt temperature
3. Increase the melt temperature
9. Low Extruder Output 1. Melt temperature too high

1a. Reduce melt temperature.
1b. Check external cooling.
1c. Check extruder screw wear.
10. High Extruder Pressure 1. Contamination 1a. Check extruder heaters, screen pack.
1b. Check for contamination.
11. Poor Roll Geometry 1. Poor bubble stability 1a. Reduce melt temperature.
1b. Increase cooling, die temperature.
1c. Clean die. Blown Film Plant

 

 

 

 

 

 

 

 

 

 

 

 

B. BLOW-UP-RATIO (BUR) AND POLYMER ORIENTATION

To produce the best physical properties in an extruded film, the proper balance of film orientation in
the machine and transverse direction of a film must be achieved. This relationship is achieved by
adjusting the blow up ratio of the film. The blow up ratio (BUR) is the ratio of bubble diameter to the
die diameter; it indicates the amount of stretching the polymer is undergoing during the shaping of the
film.
Blow Up Ratio (BUR) = (0.637 x Lay-Flat Width) / Die Diameter
Where:
 Lay-Flat is the width of the collapsed film
 Die Diameter is the fixed diameter of a given die

The HMW-HDPE blown film lines typically have small diameter dies to achieve the relatively high BUR
ratios required to obtain optimum film properties. Other polyethylene resins, such as low density
polyethylene (LDPE) and linear low density (LLDPE) resins, normally operate at much lower BURs of 2 to
3. The typical die gaps for HDPE blown film lines are 1.0 to 1.5 mm (40 to 60 mils), which are narrower
than die gaps used for conventional LDPE and LLDPE blown film lines.

As shown in Figure 1 below, HDPE blown films lines have a very unique “High Stalk” bubble shape. The
stalk height recommended for HMW HDPE blown film lines is 7 times to 9 times the die diameter. The
characteristic high stalk bubble shape used for HMW-HDPE Blown film production results in a very high
frost line, which is the transitional phase from molten polymer to solid film. A high frost line enables
the polymer to achieve a balance of film properties by imparting more bi-axial molecular orientation in
the film in the transverse direction (TD) to match the machine direction (MD) orientation.

Figure 1
HMW HDPE AND LLDPE BLOWN FILM

Bi-axial orientation of the polymer molecules in a blown film is important to achieve a balance of the
film’s physical properties. Bi-axial orientation of HDPE blown film is much more difficult than with
either LDPE or LLDPE blown film due to the inherent differences of the polymer structures. Long side
chain molecular branching is prevalent in LDPE and to a lesser degree in LLDPE, but HDPE has very few

 

 

 

 

Application Development of PPTQ Blown Film Machine; Technology that Takes Your Business to New Heights

March 19, 2014 • Mrunal Ramanuj
woven sack machinery

woven sack machinery

Development of PPTQ Blown Film Machine and its Application

Its application areas include: food packaging industries, hosiery, confectionery, bakery packing, flowers packing, garment packing, lamination film, blood bags and high general packaging film. The machines are developed with different widths depending on various application areas. The manufactures develop supreme quality products that incorporate the latest technological advancements that meet various customers’ needs. The machines are developed per international standards and certified for use in different industries. The machines are developed with customers at heart with utmost energy efficient and give optimum production. Develop with high precision engineering expertise in meeting modern market.

Advance Features and of PPTQ Blown Film Machine

The machine incorporate advanced features like long life service, manual as well as automatic screen, internal bubble cooling, high productivity, high performances, online thickness monitoring control, surface and center winders, constructed with very high quality materials, auto tension control, manual and automatic screen changer, dosing systems, flexibility and grooved feed barrel. The attractiveness of utilization of this film machine for packaging is basically based on various mechanical operations that are being done in the field. The machines are technologically advanced with automatic screen changer that enhances efficiency and easy operation.

Benefits of Using PPTQ Blown Film Machine in Packaging Industries

The machine are manufactured in various combinations such PP and PE grades to meet customer needs and specific requirement. They are very efficient and are of great importance in enhancing quality and adding attractiveness of the packed products. This resulted to increase in production input resulting to profit maximization. The machine reduces the operating work load and increases the production efficiency. The packaging industries deserved a packaging film machine that keeps good safe, environmental friendly, superior quality, reliable, durable and affordable to packing industries.

PP-TQ Blown Film Plant

Technology Advancement and Innovations in PPTQ Blown Film Machine

 Every packaging industry that seek to increase their profits and maximizes on production must use technologically advanced PPTQ blown film machine. Their advance technological features boost high precision, ease operation, quality standards, fast, accuracy, saves time and cost effective as well as consistent performance. The machines are designed by professional who ensures quality, presentable, originality and innovativeness design in meeting customers’ demands.

Cost Advantages and Extra High Performance with PPTQ Blown Film Machine

There are various advantages in which packaging industries can comfortably enjoy while using high quality and extra performing machine for packaging. Its advantages includes: high speed, effectiveness and exceptional high performances. These merits overdo the cost of purchasing this machine.

The Current Market Trends and Demand for PPTQ Blown Film Machine

In the current market trend this machine is geared by inventiveness and originality in meeting the client demand globally. The market trend is very competitive and the manufacture ensures quality design that meets all the client needs and desires. They embrace newest technology to meets the client description requirement with tangible results. Get more details visit at http://www.oceanextrusions.com/product.html.

Conclusion

The PPTQ blown film machines are specialized fabricated with quality standard raw materials. They have embraced latest technological advancements and efficiently integrated them in meeting industrial demand. The offer extensive desirable benefits to the packing industries such as overall cost saving, durability, conveniences, cost effectiveness, user friendly, preserve item for a long time , aesthetics, and add attractiveness to the packed products hence help in maximizing returns.

Blown Film Line and Blown Film Plant is Better than other Packaging Machinery

December 19, 2013 • Mrunal Ramanuj

What is Blown Film?

  • Among the different types flexible packaging films available a blown film is one that is made of synthetic ingredients like polyethylene.
  • It is made by a technology called blown extrusion where the film in obtained by processing through a spherical dies.

What Features Make Blown Film Special?

  • Blown film or extrusion of blown film is the popular flexible box up film trend preferred in most of the industries.
  • Majority of films made with plastic resins are made with this technology.

Know about Blown Film LineWatch Full Movie Online Streaming Online and Download

  • Blown film line is a technology with which high quality barrier films can be produced
  • Since, the need for barrier films has been increasing for its advantageous features buying a blown film line will stay a economic as well as profit making option

Advantages of Installing Blown Film Plant

  • Blown film plant is a high end option in extrusion machinery.
  • With blown film plant excellent quality of packaging materials can be produced.

Blown Film Plant from Ocean Extrusions

  • Ocean Extrusions is a manufacturer of packaging film machinery.
  •  With their range of machineries that offer reliable and high quality machinery for more production requirement.
  • Further more information about blown film line and blown film plant, visit –  http://oceanextrusions.com/

Conclusion

Blown film is considered a tremendous invention for smart packaging options. Investing in a blown film plant will certainly bring more and more benefits in terms of making different kinds of synthetic film. Ocean Extrusions is the right place to find the best Blown film plant.

Local and International Opportunities before Blown Film Plant Manufacturers in India

August 27, 2013 • Mrunal Ramanuj

Blown film Plant types and uses

Packaging industry is facing equal growth in technological impact. Since, the necessity for export and import is increasing worldwide; high quality packaging techniques are required to maintain the quality, safety and originality of the products that are packed. Be it food industry or medial or machineries or cosmetics for instance, the aspect of packaging has a big role to play. As a result of the increasing demand for different types of packaging and consecutive extrusion machinery, there is also good demand for different types of packaging to be done. Running one of the plastic extruder machineries such as a Blown film plant will suit a range packaging options for several industrial requirements. Hence, manufacturing blown films offers wide opportunity to develop business worldwide.

Multi-Layer Blown Film Plant

Owning a blown film plant of different types can fetch you good business such as

Types of Blown Film Plants

  1. Mono Layer Blown Film Plant-A mono layer blown film machine is a best option to design shopping bags, grocery bags, aluminium foils, lamination film, baked items packaging, green house films, simple carry bags, shrink films, etc. With a mono layer blown film plant it is easy to manufacture from 35kg to 450 kg of films in one hour. You can choose the features such as changeable plastic extrusion output in the machinery depending upon the production requirement.
  2. Two Layer Blown Film Plant– If you are looking out for an option where you can get higher productivity at a reasonable investment and quick returns a two layer blown film line plant will stay the right option.
  3. Air bubble sheet plant– We can produce air bubble wrap sheets with scratch protection and water resistant. This is a superior option in packaging films. It is applied for packaging shipping industry. In addition with PP HDPE PET Box Strapping Plant you can produce heat-sealing straps and with PP TQ blown film plant you can manufacture packaging for textile and food industry. A Pet reprocess plant involves recycling and fabrication of waste plastics and found to be an economical investment. A Sutli plant is for producing synthetic jute packaging material for small and medium size products whereas, an extrusion coating lamination plant will be the best option to product jumbo bags, aluminium foils, polyester films, etc.
  4. Multi-Layer Blown Film Plant- Among the different types of blown film plants and relative plastic extrusion machinery a multilayer blown film plant can stay a best option for co extruder feature. There are advanced features added to multilayer blown film machinery such as the grooved feed barrel, dosing system, rotating die, automatic bubble cage, etc which helps in experiencing high productivity as well as better quality. Packaging for confectionaries, dairy products, fast foods, can be produced in addition to general types of food packaging requirements.

Industrial Applications of Blown film machineries and its demand

Investing on blown film machineries will stay an ideal choice to make good returns. There are a number of industrial applications for which various blown film plants can stay useful. Starting from food industry to medical, machinery manufacturing, textile, cosmetics, medial equipments, dried foods, processed foods, dairy products, confectionaries, groceries, etc Indian packaging film manufacturers are emerging out with innovative and highly reliable packaging products that are in demand all over the world. Investing on any type of blown film plant in accordance with the type of demand will enhance your revenues as well.

Conclusion

Choosing a blown film plant is an ideal investment, but buying a high quality and reliable machinery is more important.

Extrusion Machines, Plastic Extruders, Rotogravure Printing Machine, Slitter and Rewinder Machine, Adhesive Coating Machine, Blown Film Plant

January 20, 2012 • Mrunal Ramanuj

Extrusion Machines
The products manufactured from extrusion machines are the necessities of our daily life. Our basic requirements like toothbrush, pen etc. is made from machines itself. Some of the machines manufactured in India and having huge demand amongst various industries are briefed below:-

Plastic Extruders
The plastic extruder converts plastic materials like plastic chips or plastic pellets from solid to liquid form and then reconstitutes them in final shape of finished product.

Rotogravure Printing Machine
The Rotogravure printing machine is a type of intaglio printing process; which involves engraving the image onto an image carrier. In gravure printing, the image is engraved onto a cylinder because, like offset printing and flexography, it uses a rotary printing press. Once a staple of newspaper photo features, the rotogravure process is still used for commercial printing of magazines, postcards, and corrugated (cardboard) product packaging.

Slitter and Rewinder Machine
The slitter and rewinder machine is used to manufacture flexible packaging material. There are different models and kinds of slitter machines that you can buy in the market. You will surely find one that can suit your budget and your company needs.

Adhesive Coating Machine
The adhesive coating machine is suitable for the double -layer and multiple layer lamination of such roll film materials as BOPP, PET, Nylon, CPP, CPE, aluminium foil and paper etc. Adhesive coating machine or adhesive coating plant, also known as Adhesive lamination plant or adhesive lamination coating plant is highly used in flexible packaging industry.

Blown Film Plant
Blown film plant, blown film line machines are used for various plastic extrusion processes for production of high volume quality blown film. In this process raw plastic material is melted and formed into a continuous profile by high end plastic extrusion machines. Blown film line machines are available based on various extrusion process, like mono layer blown film plant, multi layer blown film plant, co-extrusion two layer blown film plant to produce variety of packaging materials for foodstuff, clothing, Medical, Pharmaceutical and other packaging industries.

Extrusion Machinery Exporters are making a conscious effort to put their best foot forward with the help of latest technologies to tap the upcoming opportunities all over the world.

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The Roll of Plastic Extrusion Machineries in Extrusion Process

December 28, 2011 • Mrunal Ramanuj

The Roll of Plastic Extrusion Machineries in Extrusion Process
Plastic extrusion process is well defined from ancient period. The concept is to generate the required plastic product from raw plastic material. The process seem easy is not as easy. It requires extrusion machinery to melt plastic granules or raw materials at certain high temperature like 200 centigrade along with the soluble materials to melt down the raw granules. The granules are heated and molt down in the heating extruder cavity which is operating and controlled at certain heating temperature. On completing the melting process, the liquid plastic is forced to the die by screw pressure method. This melted plastic is cooled in die to define particle shape for the product. There are various extrusion machineries applied in industries like blown film plant, extrusion coating lamination plant, raffia tape stretching plant, PP box strapping plant, PET box strapping plant, PP/ HDPE monofilament plant, sutli plant, reprocess plant, PP-TQ blown film plant etc. Each machinery contains plastic extruder for extrusion process.

Blown Film Plant
Blown film extrusion process is used to produce films for packaging industry. The concept and process to go through to blow the film remain same with certain changes in process. Blown film plant is used to manufacture shrink film, bag film or stretch film. The blown film plant is available in the market in different layers as below:

Mono Layer Blown Film Machine:
Mono layer blown film lines are offered in tailor made configurations to process diverse range of customized monolayer blown film lines – HM, HDPE, LDPE, LLDPE to suit a customer’s specific requirement to produce a wide variety of films for mono layer application. Monolayer blown film line is ideal for shopping bags. Grocery bags, Liners, Sheet, Lamination film for aluminum foil, Detergent packing, Salt packing, Bread packing Confectionery, Dairy products packing, Textiles, Garments Hosiery, Fast food packing, Green house film etc.

Multi Layer Blown Film Machine:
Multilayer blown film plant incorporate most advanced features like grooved feed sections, barrier screws, oscillating platform, stackable die, internal bubble cooling, automatic bubble cage, fully automatic surface winder etc. applicable best to the packaging film like Milk packaging film, Oil packaging film, Stretch film, Lamination film along with other packaging industries like Medical and pharmaceutical packaging, Textile and Garments Packaging etc.

Two Layers Blown Film Machine:
Two layers blown film line of extrusion utilizes two or more extruders to melt and deliver a steady volumetric throughput of different viscous plastics to a single extrusion head which will extrude the materials in the desired form. Egg. In the vinyl fencing industry, where co-extrusion is used by blown film line to tailor the layers based on whether they are exposed to the weather or not.

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