Environment-friendly easily-degradable plastic film bag and production method

A technology for plastic film bags and production methods, which are applied in chemical instruments and methods, sacks, bag making operations, etc., can solve the problem that the structural strength and degradability of composite film bags cannot be combined, have no practicability, and have a small scope of application, etc. problem, to achieve the effect of complete photodegradability, complete biodegradability, and low price

Inactive Publication Date: 2021-03-09
KUNSHAN JINMENG PLASTIC FILM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing composite film bags cannot have both structural strength and degradability, so they do not have good practicability and the scope of application is small

Method used

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  • Environment-friendly easily-degradable plastic film bag and production method
  • Environment-friendly easily-degradable plastic film bag and production method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] This embodiment provides a technical solution: an environment-friendly easily degradable plastic film bag and its production method. The plastic film bag includes an inner film and an outer mold.

[0039] The inner film includes the following raw materials by weight: 50 parts of PVC, 25 parts of plasticizer, 5 parts of deionized water, and 2 parts of photoinitiator.

[0040] The outer film comprises the following raw materials by weight: 50 parts of flax fiber, 30 parts of corn starch, 8 parts of plasticizer, and 8 parts of deionized water.

[0041] see figure 1 , and then prepare the film bag as follows:

[0042] S1. Weigh PVC, plasticizer, deionized water, and photoinitiator by weight.

[0043] Mix the PVC granule plasticizer, deionized water, and photoinitiator evenly, and stir at a constant temperature of 45-120° C. for 25-45 minutes to obtain a mixture one.

[0044] Put the mixture 1 in the extruder, control the temperature at 150-200°C, extrude and granulate to...

Embodiment 2

[0057] This embodiment provides a technical solution: an environment-friendly easily degradable plastic film bag and its production method. The plastic film bag includes an inner film and an outer mold.

[0058] The inner film includes the following raw materials by weight: 55 parts of PVC, 20 parts of plasticizer, 7 parts of deionized water, and 4 parts of photoinitiator.

[0059] The outer film comprises the following raw materials by weight: 40 parts of flax fiber, 25 parts of corn starch, 7 parts of plasticizer, and 7 parts of deionized water.

[0060] see figure 1 , and then prepare the film bag as follows:

[0061] S1. Weigh PVC, plasticizer, deionized water, and photoinitiator by weight.

[0062] Mix the PVC granule plasticizer, deionized water, and photoinitiator evenly, and stir at a constant temperature of 45-120° C. for 25-45 minutes to obtain a mixture one.

[0063] Put the mixture 1 in the extruder, control the temperature at 150-200°C, extrude and granulate to...

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PUM

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Abstract

The invention is applicable to the technical field of degradable film bags, and provides an environment-friendly easily-degradable plastic film bag and a production method, and the film bag comprisesan inner film and an outer film. The inner film is prepared from the following components in parts by weight: 50-60 parts of PVC, 15-25 parts of a plasticizer, 5-8 parts of deionized water and 1-5 parts of a photo-initiator; the outer film comprises the following components in parts by weight: 30-50 parts of linen fibers, 20-30 parts of corn starch, 5-10 parts of a plasticizer and 5-10 parts of deionized water, the inner film is prepared from PVC, a plasticizer, deionized water and a photo-initiator, the outer film is prepared from linen fibers, corn starch, a plasticizer and deionized water,the inner film and the outer film are compounded to form a bag making layer for preparing the film bag, then the film bag with a composite film structure is prepared, and no toxic and harmful substance is generated in the processing process. The inner film and the outer film are high in tensile strength and elongation, insoluble in water at normal temperature and excellent in physical performance.The outer film has a complete photo-degradable property. The inner film has complete biodegradability, and the raw materials are wide in source and low in price.

Description

technical field [0001] The invention belongs to the technical field of degradable film bags, and in particular relates to an environment-friendly easily degradable plastic film bag and a production method. Background technique [0002] Composite bag is a bag made of composite film, which is a kind of packaging bag commonly used in commodity packaging at present. The composite film used to make composite bags is usually composed of two or more single-layer films. Most of the composite films are provided with an outer film that does not have heat-sealing properties and is used to contact the object to be packaged. Sealing inner membrane. When making bags, the composite film is first folded in half, so that the outer film without heat-sealing properties of the composite film faces outward, and the inner film with heat-sealing properties faces inward, and then the folded composite film is heat-sealed and then cut into bags. Made into composite bags. [0003] The existing comp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/30B32B27/18B32B27/22B32B9/02B32B9/04B32B37/00B31B70/20B31B70/64B31B70/74
CPCB32B5/02B32B27/12B32B27/18B32B27/22B32B27/304B32B37/00B32B2262/065B32B2307/51B32B2307/7163B32B2439/06B31B70/20B31B70/64B31B70/74
Inventor 李忠
Owner KUNSHAN JINMENG PLASTIC FILM
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