The characteristics and applications of the seven layers co-extrusion film

seven layers co-extrusion film is commonly used in daily life of a multi-layer co-extrusion stretch film with high barrier property, food packaging manufacturer specific for everyone today introduce seven layers co-extrusion film properties and some applications.

a, seven layers co-extrusion film has the characteristics of

1, high separation: with different plastic material blocking performance vary widely, co-extrusion film, contour of oxygen, water, carbon dioxide, smell the effect of the block.

2, strong function, oil resistant, resistant to moisture, resistant to 120 degrees centigrade high temperature cooking, good low temperature resistance, with good quality, fresh, frozen smell, can be used in vacuum packaging, aseptic packaging, plastic packaging.

3, the cost is low, relative to the glass packing, the aluminum foil packing and other plastic packaging, to achieve the same barrier effect, co-extrusion film has great advantage on cost. Because of its simple work, the products of thin film production cost compared with the dry type composite film and other composite membrane can reduce 10 - 20%.

4, flexible structure design: adopt different structural design, can meet your demands for different quality.

5, the intensity is high, co-extrusion film has the characteristics of drawing in the process of processing, plastic tensile after corresponding improving strength, can also join in the middle of metallocene polyethylene plastic materials such as nylon, and give it more than general compound strength of plastic packaging, there is no hierarchical stripping phenomenon, good flexibility, excellent heat sealing performance.

6, capacity than smaller: co-extrusion film can be used in a vacuum shrinkable packaging, capacity volume ratio is near 100%, this is glass, cans, paper, incomparable.

7, no pollution, no residue solvent pollution, green environmental protection.

2, several types of seven layers co-extrusion film

( 1) High separation, seepage prevention packaging film

basic structure is: the PA/TIE/PE/TIE/PA/EVOH/PA/TIE/PE

used in all kinds of cooked meat food, coffee, tea, herbs, spices, food additives, cosmetics and other products with long shelf life

packaging. Can also be used for petroleum, chemical, pesticide, highly toxic, acid, alkali, salt, such as permeability and strong corrosive product packaging.

( 2) Inflatable, fresh-keeping packaging film

basic structure is: the PE/TIE/PA/TIE/PA/TIE/PE

modified atmosphere packaging for food and balloons membrane inflatable packaging, etc.

( 3) Fresh meat preservative film

basic structure is: the PE/TIE/PA/EVOH/PA/TIE/EVA

for pig, cattle and lamb meat cold storage preservation, requirements into 1 - in 80 ℃ water Stick put oneself in 3 seconds ( Or, in the case of a hot baked road joint) when it is heated , blocking performance is good, can be in - The packing of the products below 25 ℃ low temperature storage.