Plastic thin film with adjustable heat seal stripping force

Abstract

The invention discloses a plastic thin film with the adjustable heat seal stripping force. The plastic thin film comprises an ice bag, an outer protection layer and an easily-stripped thin film layer,wherein the outer protection layer and the easily-stripped thin film layer are arranged on the ice bag, the ice bag is formed through heat seal of the outer protection layer and the easily-stripped thin film layer, a water injection pipe is arranged on the upper end of the ice bag, heat seal belts are arranged in the ice bag, and are of strip structures, the multiple heat seal belts are in longitudinal and transverse distribution to form a grid structure, water leaking holes are formed in the transverse heat seal belts, the water leaking holes in the upper end are matched with the water injection pipe, the surface of the ice bag is provided with the outer protection layer, the outer protection layer comprises polyethylene thin films, an elastic force belt and a bending thin film belt, thepolyethylene thin films are of strip structures, the multiple polyethylene thin films are arranged to divide the ice bag into two layers, due to the easily-stripped thin film layer inside, after water is condensed into ice blocks, the ice bag is shaken through the hand, the ice blocks can break through the easily-stripped thin film layer to fall on the bottom end of the ice bag, the ice blocks can be taken out in a stacked manner, and the efficiency is high.

Description

technical field [0001] The invention relates to the technical field of plastic films, in particular to a plastic film with adjustable heat-sealing peeling force. Background technique [0002] Plastic film is a film made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resins. It is used for packaging and as a coating layer. The market share of plastic packaging and plastic packaging products is increasing. It is getting bigger and bigger, especially composite plastic flexible packaging, which has been widely used in food, medicine, chemical industry and other fields, among which food packaging accounts for the largest proportion, such as beverage packaging, quick-frozen food packaging, retort food packaging, fast food packaging, etc. These products have brought great convenience to people's lives. The ice pack utilizes plastic film to freeze ice cubes, but it still has the following disadvantages in actual use: [0003] 1. The sealing temperature ra...

AI Technical Summary

Problems solved by technology

[0003] 1. The sealing temperature range between the film and the film is relatively narrow, either the heat seal is not firm, or the film is directly scalded, and after heat sealing, the strength is fixed and the range of change is small;

[0004] 2. The traditional PE raw material formula blows the film to make the bag, then fills it with water and puts it in the freezer. After it condenses into ice cubes, tear the bag by hand and take out each ice cube for drinking. It is troublesome, and the ice cubes in hand are colder;

[0005] 3. The plastic range of traditional ice packs is small, and it is easy to break when holding water and freezing, resulting in the failure of ice cube freezing

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