EVOH multi-layer film extrusion line

China GWELL as China Plastic Extruder Supplier, EVOH multi-layer film extrusion line adopts precision dispensing technology, proportional metering, fixed flow channel, more accurate layering and more stable pressure. The whole line adopts man-machine interface display, PLC control, frequency conversion speed regulation, online powder cleaning, and automatic cleaning.

Description

EVOH multi-layer film extrusion line features

  1. The EVOH multi-layer film extrusion line has the “one-key acceleration” function, which allows the equipment to realize low-speed adjustment and high-speed production, which greatly reduces the waste of raw materials caused by the adjustment process. Intelligent advanced control system, network The transmission speed is fast, which greatly reduces the transmission error of information, and makes the speed, pressure and material transportation of the equipment more stable.
  2. The winding part adopts servo control, which is more accurate, and has the speed synchronization function with the whole machine, which makes the winding more convenient, simpler and safer.
  3. Through centralized control, EVOH multi-layer film extrusion line can browse all the information of the equipment on one screen, such as current, pressure, speed, temperature, vacuum pressure, etc., making the operation easier.
  4. The whole set of China EVOH multi-layer film extrusion line adopts the international first-line brand-Siemens frequency conversion servo control and Ethernet conduction technology control to achieve high efficiency, high precision, high stability and high security. Quickly locate errors and enable remote maintenance when equipment fails. Channel-level diagnosis and error analysis can be achieved through HMI, which greatly reduces debugging and production downtime. The high-digital system makes debugging easier and maintenance more convenient.
  5. Complete after-sales service system, from equipment installation and debugging to high-quality product manufacturing, and provide lifetime technical support, so that customers have no worries.

 

EVOH multi-layer film extrusion line Process Flows

EVOH multi-layer film extrusion line Process Flows

 

Extruder —- Screen changer —– Melt pump —– T-die —— Calender —– Thickness Scanner —-Cooling Bracket —-Cutting Knife —- Haul-off —-Winder

EVOH is a crystalline polymer with a chain structure, which integrates the good processability of ethylene polymer and the extremely high gas barrier of vinyl alcohol polymer. It is a new barrier material. Its gas barrier is 100 times higher than PA (polyamide), 10000 times higher than PE and PP, and more than ten times higher than PVDC (polyvinylidene chloride).
In addition, EVOH has excellent transparency, gloss, mechanical strength, flexibility, wear resistance, cold resistance and surface strength. At the same time, EVOH has the highest thermal stability among high-performance barrier resins. This property makes the waste produced in processing reusable.

The multi-layer extruded composite film made of ordinary plastics and high barrier plastics can not only significantly improve the barrier performance, but also help to play the role of each component, and obtain a film with good comprehensive performance and low cost.

evoh multi layer film extrusion line 2
EVOH, as a high barrier material, is often extruded with a variety of resins in multiple layers and is used for the packaging of beverages, dairy products, fruit juices, beverages, and a variety of foods. For example, at present, many domestic aquatic products companies export seafood with PE/TIE/EVOH/PA/EVOH/TIE/PE seven-layer coextrusion membrane vacuum packaging.

EVOH has always been the most widely used high barrier material. In addition to the non-stretching type, the film type of this material also includes the biaxial stretching type, aluminum evaporation type, adhesive coating type, etc. Among the biaxial stretching type, there are heat-resistant types for aseptic packaging products.

The barrier performance of EVOH depends on the ethylene content. Generally speaking, when the ethylene content increases, the gas barrier decreases, but it is easy to process.

EVOH is characterized by an excellent gas barrier and excellent processability. In addition, it has excellent transparency, gloss, mechanical strength, scalability, wear resistance, cold resistance and surface strength.

 

evoh multi layer film extrusion line 1

 

EVOH multi-layer film extrusion line Composition

  1. The EVOH multi-layer film extrusion line consists of 4 extruders, which can produce 4-layer, 5-layer, 7-layer, and other high-barrier films.
  2. Using precision distribution technology, proportional measurement, fixed flow channel, more accurate stratification and more stable pressure. The thickness error of EVOH layer is controlled by ±0.015mm.
  3. Adopt melt metering control, realize closed-loop control in extruder, and extrude more uniformly.
  4. The EVOH multi-layer film extrusion line adopts human-machine interface display, PLC control, frequency conversion speed regulation, and online powder cleaning to realize automation and cleaning.
  5. Three-roller arrangement: vertical type structure, suitable for processing materials of various thicknesses.
  6. Large winding diameter, frequency conversion drive, constant tension control.

evoh multi layer film extrusion line 4

 

 

GWELL as China Plastic Extruder Supplier, EVOH multi-layer film extrusion line continues the previous advantages of high output and low energy consumption, and at the same time, it keeps pace with the times and has a higher cost performance.

Since its establishment, China GWELL has been focusing on the R&D and production of plastic sheet extrusion production equipment. In the continuous innovation practice, the extrusion equipment has been improved to make the performance better and the structure more user-friendly.

Parameter

 Extruder Type Co-extrusion GWS165, GWS75 combination
Raw material PE, PA, EVOH, TPEE
Net width 1400-1600mm
Thickness range 0.08-0.35mm
Capacity 250-400kg/h

 

Application

  • In the field of packaging, EVOH is made into a composite film intermediate barrier layer, which is used in all hard and soft packaging;
  • In the food industry, it is used for aseptic packaging, hot cans, and cooking bags, packaging dairy products, meat, canned fruit juice, and condiments;
  • In non-food, it is used for packaging solvents, chemicals, air conditioning structural parts, gasoline barrel lining, electronic components, etc.
  • In terms of food packaging, EVOH plastic containers can completely replace glass and metal containers.
  • Many domestic aquatic products companies export seafood with PE/EVOH/PA/EVOH/PE five-layer coextrusion membrane vacuum packaging.
  • While accelerating the research of EVOH composite films, EVOH tensile orientation is also being studied abroad. The gas barrier performance of the new EVOH films is three times that of the existing high-performance nontensile EVOH films.
  • In addition, EVOH can also be coated on other synthetic resin packaging materials as a barrier material to enhance barrier performance.

evoh multi layer film extrusion line 6

evoh multi layer film extrusion line 5

About Gwell

Plastic extrusion equipment production plant

Innovation drives enterprise progress. Relying on the group’s strong technology, equipment strength and innovation spirit, Gwell is committed to the development of high-tech products and the international market. Gwell also actively exchanges and cooperates with world-class scientific research institutions. The new technologies, new processes and new products developed by Gwell are widely used in building materials(PP hollow sheet extrusion machine, PC optic extrusion machine), home appliances(SPC floor extrusion machine), packaging(PET sheet extrusion machine, EVOH film extrusion machine), 

medical treatment(PVC rigid sheet extrusion machine), automobiles(TPU film extrusion machine, PVB film extrusion machine), new energy(EVA solar film extrusion machine), aerospace(TPU film extrusion machine), rail transit(waterproof film extrusion machine) and other fields, which are closely related to human life.

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FAQ

International Commercial Terms(Incoterms): FOB, CFR, CIF, EXW.

Terms of Payment: LC, T/T

Delivery date:1-4 months

We are committed to produce sheet,film,board extrusion machine.Sheet extrusion machine includes PET sheet, PP、PS sheet, PLA biodegradeble sheet, PETG sheet extrusion machine, PVC soft sheet, PMMA、GPPS sheet extrusion line and so on.Film extrusion machine includes EVA、POE solar film, PVB film, TPU film, PETG film, ASA film and so on.Board extrusion machine includes PC solid board, PP、PE board ,etc.and other extrusion machine like floor, hollow, waterproof , foaming, non-woven fabric extrusion making machine.

Our Trading capacity is about 1,000 extrusion lines every year,and Gwell has exported to over 60 countries and regions for nearly 15 years.

It will take 1-4 months to produce,which caused by different reqiurements of customers and design for each extrusion line.

Yes,Gwell sale teams will provide specification according to customer’s requirements,meanwhile we can give the technical support to customers. Beacause we are not only sales but also technicians.If you are interested in our extrusion machine,please contact us.

Yes,Gwell is complete set of customized turn-key engineering project which include hardware& software design, technology commissioning and after-sales service.Otherwise we can provide formula support.

Cindy Liu:Email:cindy@gwell.cn  Whatsapp/phone:+86 15906228639

Lucy Lu:   Email:zl@gwell.cn      Whatsapp/phone:+86 18861956208

24 hours/7 days available

The whole extrusion line that we often adopt ocean shipping for saving cost,The nearest port of departure is China Shanghai,but if urgent cases like small spare parts,we will send to customer factory by air. Otherwise you can either use your own assigned shipping agent or our cooperative forwarder.

Are there any technical supports for extrusion machine that you need?​

Our service will be always at your disposal over the entire extrusion line life.So if you want to know about any other technical supports.Please contact us as soon as possible.

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