Biaxially stretched BOPP protective film

A biaxially stretched, protective film technology, used in flexible coverings, packaging, wrapping paper, etc., can solve problems such as poor waterproofness

Pending Publication Date: 2021-04-27
无锡梦之源电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides a biaxially stretched BOPP protective film, which solves the problem of poor water resistance

Method used

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  • Biaxially stretched BOPP protective film
  • Biaxially stretched BOPP protective film
  • Biaxially stretched BOPP protective film

Examples

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Embodiment Construction

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0024] see Figure 1-4 , in this embodiment: a biaxially stretched BOPP protective film, including a film body 1, the interior of the film body 1 is provided with an internal cavity 2, and the internal cavity 2 is provided with a water-absorbing cotton block 3, and the top of the film body 1 is fixed Connected with the first connecting block 4, the first connecting block 4 is provided with a first cavity 13, the first cavity 13 is provided with a first bar 5, ...

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PUM

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Abstract

The invention belongs to the technical field of protective films, and particularly relates to a biaxially- stretched BOPP protective film. The biaxially- stretched BOPP protective film comprises a film body, wherein an inner cavity is formed in the film body, a water absorption cotton block is arranged in the inner cavity, a first connecting block is fixedly connected to the top end of the film body, a first cavity is formed in the first connecting block, and a first strip block is arranged in the first cavity; and first grooves are formed in the surface of the first strip block, each elastic block is fixedly connected to the inner wall of the corresponding first groove, a second connecting block is fixedly connected to the bottom end of the film body, a second cavity is formed in the second connecting block, a second strip block is arranged in the second cavity, and second grooves are formed in the surface of the second strip block. Through the arrangement of the second grooves, when a product needs to be packaged and sealed, the film body can be folded and bent, anti-skid rings are inserted into the first grooves, the product is sealed and packaged through mutual friction of the anti-skid rings and the elastic blocks, and therefore the sealing effect is achieved.

Description

technical field [0001] The invention relates to the technical field of protective films, in particular to a biaxially stretched BOPP protective film. Background technique [0002] BOPP is the abbreviation of "Biaxially Oriented Polypropylene", that is, biaxially oriented polypropylene film. Its production is to first make the melt of high molecular polypropylene into a sheet or a thick film through a long and narrow machine head, and then in a special stretching machine, at a certain temperature and a set speed, simultaneously or step by step It is a film made by stretching in two vertical directions (longitudinal and transverse) and undergoing appropriate cooling or heat treatment or special processing (such as corona, coating, etc.). The production technology of BOPP film was developed by Italy in 1958. The first of its kind by Monte Kati. In 1962, it achieved industrialization and monopolized production in Europe, America and Japan. Since then, BOPP film has developed r...

Claims

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Application Information

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IPC IPC(8): B65D65/10B65D65/22B65D65/40
CPCB65D65/10B65D65/22B65D65/40
Inventor 谢劲文
Owner 无锡梦之源电子科技有限公司
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