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Easy-to-tear film as well as preparation method and application thereof

A technology of easy-tear film and polyolefin layer, applied in application, other household appliances, chemical instruments and methods, etc., can solve the problems of complex process, influence on shelf life, low efficiency, etc., and achieve simple preparation method, short production cycle, positioning accurate effect

Active Publication Date: 2020-06-19
安徽紫江复合材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current easy-to-tear film has the following problems: the tear opening or jagged line has poor tear guidance, which often leads to poor tearing or uneven tear edges, resulting in spilled content; laser cutting lines are easy to tear, although the tear Flat, if the cut is too deep, the sealing performance of the package will be deteriorated, and the shelf life will be affected. The position is fixed, and the packaging bag only has an easy-to-tear effect in a specific area, which cannot fully meet the needs of people's efficient life; and the efficiency is low, and the process is difficult to control, resulting in large film loss
Although the easy-tear film provided by this patent application can be torn into regular shapes, it is still mechanically processed after the easy-tear film is processed first, and the process is relatively complicated.

Method used

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  • Easy-to-tear film as well as preparation method and application thereof
  • Easy-to-tear film as well as preparation method and application thereof
  • Easy-to-tear film as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] An easy-tear film, such as figure 1 As shown, the preparation method is as follows:

[0062] A group of easy-to-tear processing devices are set, wherein the easy-to-tear processing devices include a first guide roller 1 and a second guide roller 4, and a metal 3 between the first guide roller 1 and the second guide roller 4, the metal roller 3 Pressure roller 2 is arranged above, and processing section 201 is arranged on pressure roller 2, such as figure 2 As shown, the processing section is covered with the surface of the pressure roller 2; the easy-tear processing device also includes a color mark sensor.

[0063] The processing process of the easy tear film is as follows:

[0064] After the film to be processed is unrolled, it is guided to the second guide roller 4 by the first guide roller 1. During this period, the film to be processed is pressed against the side of the metal roller 3, and passes through the gap between the pressure roller 2 and the metal roller...

Embodiment 2

[0067] An easy-to-tear film is composed of a polyethylene terephthalate layer, a low-density polyethylene layer, an aluminum foil layer and a polyethylene layer arranged in sequence.

[0068] The preparation method is as follows:

[0069] A group of easy-tear processing devices are set, wherein the easy-tear processing devices include a first guide roller and a second guide roller, and a metal roller positioned between the first guide roller and the second guide roller, and a pressure roller is arranged above the metal roller, There are multiple processing sections on the pressure roller, such as Figure 4 As shown, the processing sections 201 are arranged at intervals along the circumference of the pressure roller 2, and each processing section includes multiple sets of metal needles; the easy-tear processing device also includes a color mark sensor.

[0070] The processing process of the easy tear film is as follows:

[0071] After the polyethylene terephthalate film is un...

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Abstract

The invention provides an easy-to-tear film as well as a preparation method and application thereof. At least one group of micropores is formed in a preset position of the easy-to-tear film. The easy-to-tear film provided by the invention has a directional easy-to-tear effect, is relatively low in tearing force, and does not need to be subjected to mechanical treatment to be provided with a notch.Meanwhile, the effect of local easy tearing can be achieved. Easy-tearing treatment and film extrusion compounding can be completed at a time, the production period is short, and the preparation method is simple.

Description

technical field [0001] The invention belongs to the technical field of film processing, and relates to an easy-tear film and its preparation method and application. Background technique [0002] In order to protect items, daily necessities are often packaged with films. With the continuous improvement of people's living standards, the demand for the performance of plastic flexible packaging is no longer limited to shelf display, sealed protection of contents, and easy portability. How to open the package conveniently and quickly has become a trend. The easy-to-tear design of food and drug outer packaging reflects the convenience of life, and no tools are needed to open it. [0003] The currently used easy-to-tear film mainly uses a laser to engrave a cutting line on the film, and controls the easy-to-tear effect by controlling the depth of the laser cutting line; or uses a machine to cut the film into a zigzag shape or make a tear to make the film easy to tear. Effect. Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/08B32B27/32B32B27/36B32B3/24B32B15/085B32B15/20B32B38/04B65D65/40B65D65/28
CPCB32B27/08B32B27/32B32B27/36B32B3/266B32B15/085B32B15/20B32B38/04B65D65/40B65D75/58B32B2038/047B32B2307/582B32B2323/046B32B2323/04B32B2367/00B32B2553/00Y02W30/80
Inventor 周梅芳项仁龙陈漫里
Owner 安徽紫江复合材料科技有限公司
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