Professional Stretch Film and Water-Soluble Film & bag Manufacturer in China

Stretch film or Stretch wrap is a highly stretchable plastic film that is wrapped around items. The elastic recovery keeps the items tightly bound. In contrast, shrink wrap is applied loosely around an item and shrinks tightly with heat. It is frequently used to unitize pallet loads but also may be used for bundling smaller items. Types of stretch film include bundling stretch film, hand stretch film, extended core stretch film, machine stretch film and static dissipative film. We produce three type stretch film:Prestretching Film, Machine Stretch Film and Hand Stretch Film as follows




Our Mission

Continuously provide the Water-Soluble Film/Polyvinyl Alcohol Film(PVA Film) and PE film(Silage Film and Stretch Film) with lower energy consumption and excellent performance for packing
Continuously improve the technology of environmentally friendly

Contact Us

 Dongfeng EastStreet, Weifang Shandong China

 (0086)156-843-30-975

) - Google Analytics --> Starch Modified Soluble Film, PVA Film

Professional Stretch Film and Water-Soluble Film & bag Manufacturer in China

Water-Soluble-PVA-Film
Product Name:Water Soluble Film
IUPAC name:Polyvinyl Alcohol Film  
Other names:PVA water-soluble film
Thickness:10 micron--150 micron
Width:5cm--200cm
Roll Length:100m--2000m per roll
Formula:[CH2CH(OH)]n
CAS Registry Number: 9002-89-5
Synonyms:PVA Film,Water Soluble Film,Water Transfer Printing Film,Stumpwork Embroidery Film,Plain Embroidery Film
Type:Low Temperature Water Soluble (PVA) Film,Medium Temperature PVA Film and High Temperature PVA Film 

The Starch Modified Water-soluble Film Properties

The effect of the starch modified water-soluble film

  • The modification method realizes starch, PVA plasticization and melt processing in any state.
  • Improve processing, fluidity and transparency. Blow molding, injection molding, extrusion sheeting, foaming, etc.
  • Overcoming the reversibility and recrystallization of starch and expanding the application field.
  • excellent physical properties have reached or close to the performance of some plastics, starch plastic tensile strength 15-20Mpa and the prior art better than the total starch tensile strength of 8-10Mpa.
  • to achieve complete biodegradation, the formation of H2O, CO2, no pollution after disposal, complete degradation of plastic.
  • The operation is simple and easy to realize the process of production, large-scale production and low investment.
  • Very low cost brings huge market space and competitiveness to all biodegradable plastics.
  • The added plasticizers and auxiliaries are degradable and do not contain any petroleum-based products and harmful components, heavy metals, and the like.

technical date of the starch modified water-soluble film

Density g/cm3 25--100
Melt Index g/10min 10.4
Melting Point degree 190
Enlogation % 130

PVA Film Production Process:

Blown film process or inflation film process

PVA-blown-machineBlown water soluble film refers to a process in which PVA raw materials are processed into particles by appropriate modification,then melted with heat and then blown into PVA film,the details are as follows:
Firstly, the PVA particles are added to the extruder, the PVA particles will be melted by screw feeding, shearing, and heating. The molten PVA material is continuously extruded through a filter screen and a perforated plate from a circular die of a machine head, and is a ring-shaped membrane tube having a uniform thickness. At the same time,the proper amount of compressed air is blown into the membrane tube from the lower part of the machine head to inflate it radially, and is longitudinally drawn by the upper traction roller of the traction frame, then the cooling air ring located at the upper part of the machine head blows cold air to the outer surface of the bubble, so that the bubble cools and the air is cooled under the traction bubble, and is pressed by the herringbone plate (the wide blown film needs to be inserted). Under the action of the lower traction device, the film is crimped into a film roll by a guide roller.
Above all, our company uses PVA polymer to extrude tubular film blanks in a better melt. In the flowing state, the tube film is inflated to a desired thickness by high-pressure air, and after cooling, it becomes the beautiful water-soluble film.

Casting film process

Casting-film-machineFirst, we made the PVA raw material into particles by appropriate modification,then the PVA raw material is plasticized and melted in an extruder, and cast into a roll surface of a smooth rotating cooling roll by a structural forming die, the diaphragm is cooled and cooled on the cooling roller, and then the PVA film is realy after being pulled and trimmed.
The casting PVA film is a non-stretched, non-oriented flat extruded film produced by melt casting and quenchinghas, the casting water soluble film has the characteristics of fast production speed, high output, good transparency, gloss and uniformity of film thickness.


Our water soluble film packing

We pack the film in the carton, and put the carton into the container.




Our Mission

Continuously provide the Water-Soluble Film/Polyvinyl Alcohol Film(PVA Film) and PE film(Silage Film and Stretch Film) with lower energy consumption and excellent performance for packing
Continuously improve the technology of environmentally friendly

Contact Us

 Dongfeng EastStreet, Weifang Shandong China

 (0086)156-843-30-975