PET film manufacturer on PET film
PET film roll polyester shrink film is a new type of heat shrinkable packaging material. Because it is easy to recycle, non-toxic, tasteless, good mechanical properties, especially the accord with environmental protection and other characteristics, in the developed world polyester ( PET) Has become a replace polyvinyl chloride ( PVC) Ideal alternative to heat shrinkable film.
however, ordinary polyester is a crystalline polymer, ordinary PET film through special craft processing of heat shrinkage rate of under 30%. If you want to get higher shrinkage polyester film, must also be modified. That is to say, to the preparation of high shrinkage polyester film, need for ordinary polyester or copolymerization modified polyethylene terephthalate. Copolymerization modification of PET film the highest heat shrinkage rate can be up to more than 70%.
type thermal shrinkage characteristics of PET film, it is stable at room temperature, heating ( Above the glass transition temperature) Contraction, and is in one direction more than 70% of the thermal contraction. The advantage of heat shrinkable polyester film packaging is: (1) stick put oneself in a transparent, merchandise image. (2) the tight packing, good dispersion. (3) waterproof, moistureproof, mouldproof. (4) no resilience, has the anti-counterfeiting function. Thermal shrinkage PET film roll is often used in instant food, beverage market, electronic appliances, metal products, especially the shrinkage is the main application fields of tags. Because with the rapid development of PET bottles, such as coke, Sprite, all kinds of fruit juice beverage bottle needs to be a set with PET heat shrinkable film do the heat sealing label, they both belong to polyester class, is environmentally friendly material, easy recycling use.
heat shrinkable polyester film except for shrinkage label, in recent years are used for household goods on the packaging. Because it can protect the packaging items to avoid shock, waterproof, moisture, rust, and can make the products with beautifully printed packaging to win users, at the same time it can show the good image of the manufacturer. At present, more and more packaging manufacturers use printed PET film instead of the traditional transparent film. Because printing shrink film can improve the grade of the appearance of the product, is advantageous to the product advertising, can make the brand a profound impression in consumers mind.
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