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Shandong Fully Packing Materials Co.,Ltd

Add:High Tech Zone, Weishan County, Jining City, Shandong, China





Non-toxic, odorless, good mechanical properties
Jul 05, 2018

PET heat shrinkable film is a new type of heat shrinkable packaging material. Due to its easy recycling, non-toxicity, odorlessness, good mechanical properties, and especially environmental protection, polyester (PET) has become an ideal substitute for polyvinyl chloride (PVC) heat shrinkable film.

However, the ordinary polyester is a crystalline high polymer, and the ordinary PET film can only obtain a heat shrinkage rate of 30% or less by a special process. To obtain a polyester film with a higher heat shrinkage rate, it must also be modified. That is, in order to prepare a polyester film having a high heat shrinkage ratio, it is necessary to copolymerize a common polyester, that is, polyethylene terephthalate. The copolymerized modified PET film has a maximum heat shrinkage rate of up to 70%.

The characteristics of the heat-shrinkable polyester film: it is stable at normal temperature, shrinks upon heating (above the glass transition temperature), and is more than 70% heat shrinkage in one direction. The advantages of heat shrinkable polyester film packaging are:

1 The body is transparent, reflecting the image of the product.

2 tightly packed with good anti-scattering properties.

3 rain, moisture, mildew. 4 no recovery, there is a certain anti-counterfeiting function.

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