Plastic packaging film

Abstract

The invention relates to the technical field of plastic packaging films, in particular to a plastic packaging film which comprises a plastic packaging film base layer, and the upper side and the lower side of the plastic packaging film base layer are each fixedly connected with a first transverse extending edge width. Through the arrangement of a fluorescence release mechanism, when a first covering film and a second covering film are in a vacuum state, a first part and a second part are in a compressed state, an internal fluorescent agent expands when being extruded, and under the action of the fluorescent agent, a first compression molding line is gradually separated from an adhesive ring, so that the first compression molding line is separated from the adhesive ring; in this way, the fluorescent agent overflows from a vertical dividing groove formed between the second part and the fluorescent releasing mechanism, the outline of a packaging object can be formed on the plastic packaging film, a full state is formed between the first covering film and the second covering film, the buffering function of the plastic packaging film can be further increased, and the service life of the plastic packaging film is prolonged. Therefore, the protection performance of the plastic packaging film can be improved.

Description

Technical field [0001] The present invention relates to the field of plastic packaging membranes, and more particularly to a plastic packaging film. Background technique [0002] Films made of polyvinyl chloride, polyethylene, polypropylene, polystyrene, and other resins are used for packaging, and as a coating layer. Plastics packaging and plastic packaging products are growing and larger, especially composite plastic soft packages, have been widely used in food, medicine, chemical, etc., which is the largest proportion of food packaging, such as beverage packaging. , Quick-frozen food packaging, cooking food packaging, fast food packaging, etc., these products have brought great convenience to people. [0003] When the package is usually packaged, since there is a difference in the size of the package, the size of the plastic packaging film is measured first, and the size of the measurement is cropped according to the measured size, which will cause the packaging operation effi...

AI Technical Summary

Problems solved by technology

When packaging items with plastic packaging film, the base layer of the plastic packaging film is used to cover the packaged items, and then according to the volume of the packaged items, the first or second laterally extended margins are torn off so that the height of the plastic packaging film can hold the packaged items Cover and wrap it, and then pull the plastic packaging film horizontally so that the longitudinal direction of the plastic packaging film can wrap the package. When the plastic packaging film is too long, tear off the second longitudinal extension edge or the first longitudinal extension along the longitudinal separation line. The margin makes it fit the size of the package. The purpose of this setting is that when the package is usually packaged, due to the difference in the size of the package, the first thing to do is to measure the size of the package with the plastic packaging film, and then proceed according to the measured size. Cutting, and by setting the tearable first horizontal extension margin and the first vertical extension margin so that the plastic packaging film is wrapped around the package, and the size adjustment is directly carried out, which is more convenient and fast, without redundant steps, and solves the problem of cutting When the plastic packaging film is irregular, by setting the longitudinal separation line and the horizontal separation line, when adjusting the plastic packaging film, pull the lateral separation line or the two sides of the longitudinal separation line in opposite directions, Due to the setting of the prismatic grooves, the space of the prismatic grooves gradually becomes larger when the prismatic grooves are pulled, so that the wiring tear between the two prismatic grooves is gradually separated. The problem of tearing, deformation and damage occurs, the operation is convenient and the quality of plastic packaging film packaging can be guaranteed

Images