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Medical environment-friendly degradable paper-plastic bag and preparation method thereof

A paper-plastic bag and environmental protection technology, which is applied in the field of medical environmental-friendly degradable paper-plastic bags and their preparation, can solve the problems of inconvenient collection, inability to guarantee the overall fit effect, and easy wrinkling of paper-plastic bags.

Inactive Publication Date: 2020-10-30
TONGCHENG ZHONGHUI PLASTIC IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The patent document (201910048508.1) discloses a paper-plastic bag with high barrier properties. The paper-plastic bag uses ethylene vinyl alcohol copolymer as the film layer of the paper-plastic bag. According to the excellent processability of ethylene vinyl alcohol copolymer, and It also shows an excellent blocking effect on gases, odors, spices, solvents, etc., thereby effectively increasing the barrier performance of the paper-plastic bag, but the overall biodegradability of the paper-plastic bag is not good, and the existing paper-plastic bag is in In the process of hot pressing, glue is usually only applied to the surface of the film layer or kraft paper layer, so that the overall bonding effect cannot be guaranteed during hot pressing. At the same time, after the paper-plastic bag is prepared, the paper-plastic bag is easy to wrinkle, which is inconvenient to collect

Method used

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  • Medical environment-friendly degradable paper-plastic bag and preparation method thereof
  • Medical environment-friendly degradable paper-plastic bag and preparation method thereof
  • Medical environment-friendly degradable paper-plastic bag and preparation method thereof

Examples

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Embodiment 1

[0031] A medical environment-friendly degradable paper-plastic bag, comprising a film layer and a kraft paper layer, the film layer and the kraft paper layer are bonded and connected by glue;

[0032] Wherein, the medical environment-friendly degradable paper-plastic bag is prepared through the following steps:

[0033] Step 1: Mix 2,2-dimethoxy-2-phenylacetophenone ethanol solution, methacrylic acid single-capped polyethylene glycol aqueous solution, and butyl methacrylate, stir under nitrogen protection, and irradiate with ultraviolet light , centrifuged and dried to obtain material a;

[0034] Step 2: dissolving starch in water, adding material a, polylactic acid and polyethylene, stirring, heating up and kneading, drying, pulverizing, and drying to obtain material b;

[0035] Step 3: Heat material b to a molten state, and add 9,10-epoxy octyl stearate, wheat straw fiber, white carbon black, illite, mica powder, silane coupling agent, and hyaluronic acid in sequence under ...

Embodiment 2

[0038] A medical environment-friendly degradable paper-plastic bag, comprising a film layer and a kraft paper layer, the film layer and the kraft paper layer are bonded and connected by glue;

[0039] Wherein, the medical environment-friendly degradable paper-plastic bag is prepared through the following steps:

[0040] Step 1: Mix 2,2-dimethoxy-2-phenylacetophenone ethanol solution, methacrylic acid single-capped polyethylene glycol aqueous solution, and butyl methacrylate, stir under nitrogen protection, and irradiate with ultraviolet light , centrifuged, and dried to obtain material a. In step 1, 2,2-dimethoxy-2-phenylacetophenone ethanol solution, methacrylic acid single-capped polyethylene glycol aqueous solution, and butyl methacrylate were mixed, Stir for 16 minutes under the protection of nitrogen, irradiate with ultraviolet light for 2 hours, the irradiation intensity is 5.3mw / cm, centrifuge and dry to obtain material a;

[0041] Step 2: Dissolve starch in water, add...

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Abstract

The invention discloses a medical environment-friendly degradable paper-plastic bag and a preparation method thereof. According to hot-pressing equipment, before hot pressing, glue is uniformly smeared on the surfaces of a film and kraft paper through an adhesive tape smearing roller and a glue smearing roller correspondingly, the glue on the bonding surface is uniform and sufficient when the filmand the kraft paper are hot-pressed, the hot pressing effect of the prepared paper-plastic bag is better; two pressing plates are designed, according to the paper-plastic bag cutting device, effective pressing and fixing are conducted when paper-plastic bags are cut, the situation that the cutting effect is affected due to wrinkles of the paper-plastic bags in the cutting process is avoided, meanwhile, through the design of the two conveying belts with the adjustable distance, the paper-plastic bags with different thicknesses can be conveyed, meanwhile, the paper-plastic bags are flatly pressed in the conveying process, and the flatness of the paper-plastic bags is guaranteed.

Description

technical field [0001] The invention relates to the technical field of paper-plastic bag processing, in particular to a medical environment-friendly degradable paper-plastic bag and a preparation method thereof. Background technique [0002] Paper-plastic bags, also known as three-in-one composite paper bags, are composed of plastic and kraft paper. Usually, the plastic layer uses pp polypropylene (pp) as the base material of pp silk woven cloth, and the kraft paper uses refined composite kraft paper. It is formed by thermal lamination of molten plastic, kraft paper coated cloth is formed into a bag, and then processed and sewn into a three-in-one paper-plastic bag. [0003] The patent document (201910048508.1) discloses a paper-plastic bag with high barrier properties. The paper-plastic bag uses ethylene vinyl alcohol copolymer as the film layer of the paper-plastic bag. According to the excellent processability of ethylene vinyl alcohol copolymer, and It also shows an exc...

Claims

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Application Information

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IPC IPC(8): C08L3/02C08L51/08C08L67/04C08L23/06C08L97/02C08K13/04C08K7/26C08K3/34C08J5/18C08F290/06C08F220/18B29D22/00
CPCB29D22/003C08F290/062C08J5/18C08J2303/02C08J2423/06C08J2451/08C08J2467/04C08J2497/02C08K2201/014C08F220/1804
Inventor 潘卫兵潘政
Owner TONGCHENG ZHONGHUI PLASTIC IND CO LTD
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