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Shrink film for preventing scabbing and sticking and production technology and application of shrink film

A shrink film and anti-knot technology, applied in the production process of anti-scarring adhesion shrink film, anti-scarring adhesion shrink film, anti-scarring adhesion shrink film field, can solve shrinkage film curling or wrinkles , can not be separated, shrink film adhesion and other problems, to achieve the effect of promoting, high aesthetics, and solving heat sealing performance

Active Publication Date: 2016-03-23
杭州德雅包装有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Shrink film for preventing scabbing and sticking and production technology and application of shrink film
  • Shrink film for preventing scabbing and sticking and production technology and application of shrink film
  • Shrink film for preventing scabbing and sticking and production technology and application of shrink film

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Experimental program
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Effect test

Embodiment 1

[0024] Embodiment one: if figure 1 , 2 As shown in , 3, this embodiment includes a strip-shaped shrink film body 1, the shrink film body 1 is provided with a shrinking bulls-eye forming area a, and the shrink sealing area a has two areas, and the two areas are respectively located on two symmetrical sides in the length direction , and at the edge of the side. At the same time, a protective coating 11 is coated on the front and back of the shrinking bull's-eye forming area a, the protective coating 11 is varnish, and the coated thickness of the protective coating 11 is 0.01mm. Among them, the varnish is a common consumable on the market. In addition to using varnishes directly available on the market, one of acrylic, polyamide, polyurethane, chlorinated polypropylene, or a combination of them can also be used. Of course, in addition to varnish, one of gold-adjusting oil, silicone oil, ink containing chlorinated polypropylene, ink containing polyurethane, and ink containing p...

Embodiment 2

[0030] Embodiment 2: Compared with Embodiment 1, the difference is that the protective coating is only applied to the front side of the shrinking bull's-eye forming area a. It is found in actual operation that the shrink film body 1 coated with a protective coating on the front side only has a 60% probability of no scarring during the shrink molding process. Wherein, the so-called front side means that when the shrink film body 1 is wrapped around the product, the side facing the outside of the shrink film body 1 is the front side; otherwise, it is the reverse side.

Embodiment 3

[0031] Embodiment 3: Compared with Embodiment 1, the difference is that the protective coating is only applied to the reverse side of the shrinking bull's-eye forming area a. It has been found in actual operation that the shrink film body 1 coated with a protective coating on the front only has a probability of no scarring of 40% during the shrink molding process.

[0032] In the present invention, the shrinking bull's-eye molding area a can be only the front side, or only the back side, or both the front and back sides, and a protective coating 11 is coated on the shrinking bull's-eye molding area a, and the protective coating 11 is One of varnish, gilding oil, lubricating oil, silicone oil, ink containing chlorinated polypropylene, ink containing polyurethane, ink containing polyamide, or multiple combinations. Because the shrink film has heat-sealing properties, when the heat shrink machine heats the shrink bull’s-eye forming area a, the shrink bull-eye forming area a will ...

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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 a shrink film for preventing scarring and adhesion. [0002] The invention also relates to the production process of the anti-scarring adhesion shrink film. [0003] The present invention also relates to the application of the anti-scarring adhesion 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...

Claims

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Application Information

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IPC IPC(8): B65D65/42
CPCB65D65/42
Inventor 蒋招晓蒋招启
Owner 杭州德雅包装有限公司
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