The main applications of stretch film are as follows:
1) Sales packaging for fresh food
2) Storage of fish, meat, fruits, and vegetables
3) Packaging of frozen food
4) Bundling and packaging of goods.
5) Wrapping packaging for freight pallets.
6) Sealing film for experimental containers, etc
Wrapping fruits and vegetables with stretchable plastic wrap can slow down their metabolic rate, prevent water evaporation, and protect against pests and diseases. For example, after conventional chemical treatment, citrus fruits individually wrapped in PE plastic wrap can remain fresh and full-bodied for three months with only a 4.85% loss rate, and their original flavor remains unchanged. Wrapping fresh meat and fish with stretchable plastic wrap preserves the heme in them, ensuring that the meat remains bright red even after long-term storage. Wrapping frozen foods with stretchable plastic wrap not only maintains their original flavor and prevents them from drying out, but also reduces the raw and fishy odor of fresh foods in the refrigerator and prevents cross-contamination between various foods.
The stretch wrapping performance of stretch film utilizes the elastic stretching ability of the film at room temperature, namely the elastic recovery effect. Goods packaging can adopt full-width wrapping or rotary wrapping. Stretch wrapping film can be used for small packaging of hardware, electrical appliances, instruments, machinery parts, glass enamel, paper, cardboard, cloth, clothing, and other commodities, as well as large packaging such as pallets, with advantages such as moisture resistance, dust prevention, cleanliness, and aesthetics. Its effect is comparable to that of shrink film packaging. Stretch film does not require heating and baking treatment, saving energy, and its wrapping elasticity is not affected at low temperatures.
Utilizing the self-adhesive property of stretch film, sticking the stretch film on the mouth of experimental containers (such as test tubes, baking dishes, wide-mouth bottles, etc.) can serve as a sealing function. The use of stretch film has the advantages of convenient pasting and easy tearing. Stretch sealing film can not only prevent dust and maintain cleanliness inside the experimental containers, but also prevent the volatilization of reagents, ensure the accuracy of experiments, prevent various harmful gases from polluting the laboratory, and protect the surfaces of furniture, instruments, and meters.
