Blown Film Basics

film blowing machine

The goal of this brochure is to describe specific defects that can appear in tubular blown film and to suggest probable causes and solutions. However, a review of the process of blown film extrusion is worthwhile.

film blowing machine

The blown film extrusion system is, in fact, one of the most complex and sensitive of all plastics processing technologies. The tubular blown film process is efficient and economical, and can produce a magnifi-cent array of products — from a light gauge, clear converter film to heavy gauge construction film, which when slit and opened, may measure 40 feet or more in width.

Dongguan Shunxiang Plastic machinery Co.Ltd.

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Mobile:+86-13712930185 Whatsapp: +86-13712930185

Tel：+86-769-82226632 Fax: +86-769-82226632

Q Q：2953036079 Wechat:samshen05

Website: http://www.plasticrecyclingmachine.cc

Email:sam@shunxiangmachine.com fabor@shunxiangmachine.com

Address: No. 1, Xinyuan 5 street, Songbailang Village, Dalang Town, Dongguan City, Guangdong Province

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Main products of Shunxiang Plastic Machinery:

stretch film machine | film blowing machine | 

plastic recycling machine | blown film machine

--------------------------------------------

Wrapping film making machine

Stretch film extrusion machine

Film blowing machine

Blown film machine

Flexo printing machine

bag making machine

Bottom seal bag making machine

T-shirt bag making machine

Side sealing bag making machine

plastic recycing machine

EPE foam extrusion machine

EPE foam recycling machine

The blow moulding

Blown film manufacturing process in principle and hollow blow molding is very similar, but it does not use the die, from the point of view of classification of plastics processing technology, blown film molding process is usually included in the extrusion. During the blowing process during the second world war, started for the production of low density polyethylene bottle.

film blowing machine

The late 50 's, with the birth of high density polyethylene and development of blow molding machine, blow-moulding technology has been widely applied. Hollow container volume up to thousands of litres of production has been using computer control. Suitable for blow molding of plastic polyethylene, PVC, polypropylene, polyester, and empty containers are widely used for industrial packaging containers.

Blow molding, also known as hollow blow molding, a fast-growing plastics processing methods. Thermoplastic resins obtained by extrusion or injection molding of tubular plastic parison, before it's too late (or heating to soften condition), placed in the split cavity, shut immediately into the compressed air in the parison to make plastics parison blowing and close to the mold walls, cooling mold release.

Dongguan Shunxiang Plastic machinery Co.Ltd.

------------------------------------------------------------------------------------------------------

Mobile:+86-13712930185 Whatsapp: +86-13712930185

Tel：+86-769-82226632 Fax: +86-769-82226632

Q Q：2953036079 Wechat:samshen05

Website: http://www.plasticrecyclingmachine.cc

Email:sam@shunxiangmachine.com fabor@shunxiangmachine.com

Address: No. 1, Xinyuan 5 street, Songbailang Village, Dalang Town, Dongguan City, Guangdong Province

-----------------------------------------------------------------------------------------------------

Main products of Shunxiang Plastic Machinery:

stretch film machine | film blowing machine | plastic recycling machine | blown film machine

--------------------------------------------

Wrapping film making machine

Stretch film extrusion machine

Film blowing machine

Blown film machine

Flexo printing machine

bag making machine

Bottom seal bag making machine

T-shirt bag making machine

Side sealing bag making machine

plastic recycing machine

EPE foam extrusion machine

EPE foam recycling machine

Rotary die head film blowing machine

It is used for blowing high-low pressure polyethylene, which has been widely used for producing laminating film, packing film, agricultural covering film, bag or film for textile and clothing and other packing material. The main motor adopts frequency control of motor speed to improve the speed regulating stability of main motor and save electricity by 30%. The screw and material barrel adopt 38 chrome-molybdenum aluminum which has been nitrogen treated and the traction frame adopts lifting type. No matter what size the film is, big or small, it can achieve the best effect of cooling. 

 film blowing machine

Use: 

The film blowing machine is used for blowing various low density polyethylene (LDPE) and high density polyethylene(HDPE) color striped plastic film, etc. Which are widely used for packing food, fruit, garments, textile, daily necessities and other civil and industrial products.

The cylinder and the screw stem of Model SJ-45*2 extruder are made of high-quality alloy steel with optimum hardness and strong corrosion resistance after precision finishing and nitrogen treatment. 600 auxiliary machine can be freely adjusted within the limits of 600mm according to the technological requirements of different materials, and has been fitted with a plug-in plate mechanism for making vest bag. 

The specially-designed screw is of sound quality in plasticizing, which helps increase the production capacity. It is applied to blowing the plastic films like low density polytene (LDPE), high density polytene(HDPE) and linear low density polytene (LLDPE). It is widely applied to producing the packing bags for foodstuff, clothing, rubbish bag and vest ones.

Dongguan Shunxiang Plastic machinery Co.Ltd.

------------------------------------------------------------------------------------------------------

Mobile:+86-13712930185 Whatsapp: +86-13712930185

Tel：+86-769-82226632 Fax: +86-769-82226632

Q Q：2953036079 Wechat:samshen05

Website: http://www.plasticrecyclingmachine.cc

Email:sam@shunxiangmachine.com fabor@shunxiangmachine.com

Address: No. 1, Xinyuan 5 street, Songbailang Village, Dalang Town, Dongguan City, Guangdong Province

-----------------------------------------------------------------------------------------------------

Main products of Shunxiang Plastic Machinery:

stretch film machine | film blowing machine | 

plastic recycling machine | blown film machine

--------------------------------------------

Wrapping film making machine

Stretch film extrusion machine

Film blowing machine

Blown film machine

Flexo printing machine

bag making machine

Bottom seal bag making machine

T-shirt bag making machine

Side sealing bag making machine

plastic recycing machine

EPE foam extrusion machine

EPE foam recycling machine