A kind of anti-scarring adhesion shrink film and its production process and application

Abstract

The invention discloses a shrink film for preventing scabbing and sticking. The shrink firm comprises a shrink film body. A shrink eyeball forming area is arranged on the shrink film body. The front face or the back face or the front face and the back face of the shrink eyeball forming area are coated with a coating used for preventing scabbing. The coating comprises one or a mixture of two of gloss paint, gold varnish, lubricating oil, silicone oil, printing ink containing chlorinated polypropylene, ink containing polyurethane and ink containing polyamide. Due to the fact that the shrink film has the hot sealing performance, when a hot shrinking machine is used for heating the shrink eyeball forming area, the shrink film is obviously wrinkled due to internal shrink stress, the face coated with the protection coating is protected against sticking even though collision happens, and therefore scabbing is avoided. A cooled shrink face is smooth and flat, attractiveness is high, popularization in the market is facilitated, and propagation of the reputation of the shrink film is facilitated. The invention further discloses a production technology of the shrink film for preventing scabbing and sticking and application of the shrink film.

Description

technical field [0001] The invention relates to a shrink film, in particular to an anti-scarring shrink film. [0002] The invention also relates to the production process of the anti-scarring shrink film. [0003] The invention also relates to the use of the anti-scarring shrink film. Background technique [0004] Shrink film has high puncture resistance, good shrinkage and certain shrinkage stress. It is mainly used in the sales and transportation process of various products to stabilize, cover and protect products. Shrink packaging not only has a beautiful appearance, but also plays the role of moisture-proof, dust-proof, loose-proof, theft-proof, and collection. At present, shrink films on the market are divided into PS, PE, PVC, POF, and PET shrink films according to different materials. [0005] The shrink film needs to be used with a heat shrink machine. During the shrink molding process, after the heat shrink machine is turned on, the air outlet of the hot air sup...

AI Technical Summary

Problems solved by technology

[0006] However, in actual operation, since the shrink film itself has heat-sealing properties, and there is a certain shrinkage stress inside the shrink film, when heated, the speed at which the cylindrical opening shrinks is not consistent, and the blowing of the hot air supply device produces Some airflow fluctuations cause the shrink film to roll up or wrinkle during the shrinking process. If adjacent rolls or folds touch each other, the shrink film will stick due to heat sealing performance and cannot be separated. "scarring"

The existence of "scars" reduces the aesthetics of the packaging film after shrink molding, and even affects the handle of the outer packaging when it is pulled

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