Production process of degradable paper bag

A production process and technology of paper bags, applied in the field of production process of degradable paper bags, can solve problems such as inconvenience, paper bags have no waterproof function, etc., and achieve the effects of increasing molecular weight, improving environmental protection performance, and high toughness

Active Publication Date: 2020-01-31
浙江超凡科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] But above-mentioned paper bag does not have waterproof function, c...

Method used

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  • Production process of degradable paper bag
  • Production process of degradable paper bag

Examples

Experimental program
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Effect test

Embodiment 1

[0041] A kind of production technology of degradable paper bag, comprises the steps:

[0042] S1. Weigh the required components by weight, initially mix 60 parts of polyvinyl alcohol, 10 parts of hexamethylene diisocyanate and 1 part of titanium tert-butoxide, then add 2 parts of phthalic anhydride and 0.1 part of 4 -Dimethylaminopyridine, further mixed, and finally added 0.8 parts of ethylenediamine, stirred and mixed evenly, to prepare a toughened film for subsequent use; the contents of each component are shown in Table 1 below;

[0043] S2. Using a laminating machine to heat-melt the toughened film of S1 and evenly coat and coat it on the surface of the wrapping paper. The toughened film is hot-melted on the surface of the wrapping paper and bonded to the wrapping paper;

[0044] S3. Use a laminating machine to evenly spray and coat 65 parts of PBS on the toughening film after hot-melting to form a waterproof layer. The waterproof layer is combined with the toughening film...

Embodiment 2

[0047] A kind of production technology of degradable paper bag, comprises the steps:

[0048] S1. Weigh the required parts by weight, initially mix 80 parts of polyvinyl alcohol, 12 parts of hexamethylene diisocyanate and 1-2 parts of titanium tert-butoxide, then add 3 parts of phthalic anhydride and 0.2 1 part of 4-dimethylaminopyridine, mixed further, and finally added 1 part of ethylenediamine, stirred and mixed uniformly to prepare a toughened film for subsequent use; the contents of each component are shown in Table 1 below;

[0049] S2. Using a laminating machine to heat-melt the toughened film of S1 and evenly coat and coat it on the surface of the wrapping paper. The toughened film is hot-melted on the surface of the wrapping paper and bonded to the wrapping paper;

[0050] S3, using a laminating machine to evenly spray and coat 85 parts of PBS on the toughened film after hot-melting to form a waterproof layer, and the waterproof layer is combined with the toughened film...

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Abstract

The invention relates to the technical field of packaging, and discloses a production process of a degradable paper bag. The degradable paper bag comprises a paper bag main body; and the paper bag main body comprises packaging paper and a waterproof film. The production process of the paper bag main body comprises the following steps: S1, a film spraying machine is adopted for conducting hot melting on the waterproof film, then spraying the waterproof film on the surface of the packaging paper for coating to form a waterproof layer, and carrying out hot melting on the waterproof layer for primary bonding with the packaging paper; and S2, blowing out hot air by using a hot air bag making machine, so that the waterproof film is further bonded with the packaging paper to prepare the water-proof paper bag. Compared with the prior art, the advantages are as following: the packaging paper is coated with the water-proof film using the film spraying machine, so that the water resistance of thepackaging paper is improved, and in addition, a toughening film is compounded, so that the toughness of the paper bag is improved.

Description

technical field [0001] The invention relates to the technical field of packaging, in particular to a production process of a degradable paper bag. Background technique [0002] Paper bag paper is similar to kraft paper, mostly made of coniferous wood kraft pulp, and some bamboo pulp, cotton stalk pulp, and rag pulp are also produced in China, so the mechanical strength of paper bag paper is very high; paper bags are often used as daily necessities packaging in daily life , paper bags are not only low in cost, but also because paper is taken from nature, it is a recyclable, renewable, and reusable material that does not cause environmental pollution and is conducive to environmental protection. With the improvement of environmental protection awareness, paper bags are more and more widely used. [0003] At present, the patent with the notification number CN209023410U discloses a paper bag. The main point of its technical solution is to include two flat walls, two serrated sid...

Claims

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Application Information

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IPC IPC(8): D21H23/22D21H17/46
CPCD21H17/46D21H23/22
Inventor 周燕莉
Owner 浙江超凡科技股份有限公司
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