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A kind of easy tear film and its preparation method and application

A technology of easy tearing film and pressing roller, applied in application, other household appliances, chemical instruments and methods, etc., can solve the problems of complex process, influence on shelf life, difficult process control, etc., and achieve the effect of simple preparation method and short production cycle

Active Publication Date: 2022-05-31
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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  • A kind of easy tear film and its preparation method and application
  • A kind of easy tear film and its preparation method and application
  • A kind of easy tear film and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

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

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

[0064] After unwinding the film to be processed, it is guided to the second guide roller 4 through 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 pressing roller 2 and the metal roller 3....

Embodiment 2

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

[0068] The preparation method is as follows:

[0069] A set of easy-tear treatment devices are provided, wherein the easy-tear treatment devices include a first guide roller and a second guide roller, and a metal roller located between the first guide roller and the second guide roller, and a pressing 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 circumferential direction of the pressing roller 2, and each processing section includes a plurality of groups of metal needles; the easy-tear processing device also includes and a color mark sensor.

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

[0071] After the polyethylene...

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Abstract

The invention provides an easy-tear film and its preparation method and application, wherein at least one group of micropores is arranged at a preset position of the easy-tear film. The easy-tearing film provided by the invention has the effect of directional easy-tearing, and the tearing force is low, and there is no need to set an incision in the mechanical treatment; at the same time, the invention can achieve the effect of local easy-tearing; and the invention can make the easy-tearing process The compounding with film extrusion is completed at one time, the production cycle 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 a preparation method and application thereof. Background technique [0002] In order to protect items, films are often used for packaging in daily necessities. With the continuous improvement of people's living standards, the demand for plastic flexible packaging performance is no longer limited to shelf display, content sealing protection, and easy portability. How to open the package easily and quickly has become a trend. The easy-tear design of the outer packaging of food and medicine reflects the convenience of life, and no tools are required to open it. [0003] The currently used easy-tear films mainly use lasers to engrave cutting lines on the film, and control the easy-tear effect by controlling the depth of the laser cutting lines; or use machinery to cut the film into zigzags or make tearing openings to make the film easy to tear. Effect. ...

Claims

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Application Information

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Patent Type & Authority Patents(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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