Degradable packaging bag

A technology of packaging bags and parts by weight, applied in the field of degradable packaging bags, can solve the problems of non-separation, stable structure of plastic packaging bags, not easy to be degraded by natural microorganisms, etc., and achieve the effect of fast degradation speed

Inactive Publication Date: 2014-09-24
柳州市柳江区联华纸制品厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Plastic packaging bags have brought great convenience to people's lives, but this convenience has brought long-term harm
The recycling value of plastic packaging is low. In addition to being scattered on urban streets, tourist areas, water bodies, and causing "visual pollution" on both sides of roads and railways during use, it also has potential hazards, such as the structure of traditional plastic packaging bags. Stable, not easy to be degraded by natural microorganisms, and not separated in the natural environment for a long time, which means that if the discarded plastic packaging bags are not recycled, they will become pollutants in the environment and accumulate continuously, causing great harm to the environment harm

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] This degradable packaging bag comprises the following steps:

[0019] A degradable packaging bag, the method comprises the following steps:

[0020] A, 5.0kg of plant fibers are put into a beater for beating to obtain a beating degree of plant fiber pulp of 30 ° SR, for subsequent use;

[0021] B, linear low density polyethylene 4.0kg, 120 order potato starch 5.0kg, the plant fiber slurry that step A makes is put into mixer and stirred 3 minutes with the speed of 8000 rev / mins;

[0022] C, after the stirring described in step B ends, add kaolin 0.1kg in the mixer, polyvinyl alcohol 0.1kg and nanoscale borax 0.05kg, stir 10 minutes with the speed of 100 rpm;

[0023] D. Put the mixed material obtained in step C into the hopper of the film blowing machine, set 5 heating sections, and the heating time of each heating section is 5 minutes, and then extrude and blow into a cylindrical shape with a thickness of 0.006mm Film; wherein, the temperatures of the five heating sec...

Embodiment 2

[0027] This degradable packaging bag comprises the following steps:

[0028] A, put plant fiber 6.0kg into beating machine and beating, obtain beating degree and be the plant fiber pulp of 35 ° SR, standby;

[0029] B, linear low density polyethylene 3.0kg, 120 order potato starch 4.0kg, the plant fiber slurry that step A makes is put into mixer and stirred 1 minute with the speed of 10000 revs / min;

[0030] C, after the stirring described in step B ends, add kaolin 0.5kg in the mixer, polyvinyl alcohol 0.3kg and nano-scale borax 0.1kg, stir 5 minutes with the speed of 200 rpm;

[0031] D. Put the mixed material obtained in step C into the hopper of the film blowing machine, set 5 heating sections, the heating time of each heating section is 5 minutes, and then extrude and blow into a cylindrical shape with a thickness of 0.2mm Film; wherein, the temperatures of the five heating sections are 160°C, 175°C, 180°C, 185°C, and 190°C in sequence;

[0032] E. Forming the tubular f...

Embodiment 3

[0035] This degradable packaging bag comprises the following steps:

[0036] A, 5.5kg of plant fibers are put into the beating machine for beating, and the beating degree obtained is the plant fiber pulp of 33 ° SR, for subsequent use;

[0037] B, linear low density polyethylene 3.5kg, 120 order potato starch 4.5kg, the plant fiber slurry that step A makes is put into mixer and stirred 2 minutes with the speed of 9000 revs / min;

[0038] C, after the stirring described in step B ends, add kaolin 0.4kg in the mixer, polyvinyl alcohol 0.2kg and nanoscale borax 0.08kg, stir for 8 minutes with the speed of 150 rpm;

[0039] D. Put the mixed material obtained in step C into the hopper of the blown film machine, set 5 heating sections, the heating time of each heating section is 5 minutes, and then extrude and blow into a cylindrical shape with a thickness of 0.1mm Film; wherein, the temperatures of the five heating sections are 160°C, 175°C, 180°C, 185°C, and 190°C in sequence;

...

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Abstract

The invention discloses a degradable packaging bag, belonging to the technical field of daily necessities. The degradable packaging bag is prepared from the following raw materials in parts by weight: 50-60 parts of plant fiber, 30-40 parts of linear low density polyethylene, 40-50 parts of 120-mesh potato starch, 1-5 parts of kaolin, 1-3 parts of polyvinyl alcohol and 0.5-1 part of nano borax. The method comprises the following steps: stirring, heating, extruding, carrying out blow molding to form a film, making the bag, cutting, carrying out heat-sealing and the like. The degradable packaging bag can be completely degraded, has the advantages of no environmental pollution and no residue, and is environment-friendly.

Description

technical field [0001] The invention belongs to the technical field of daily necessities, in particular to a degradable packaging bag. Background technique [0002] Most of the packaging bags that people use daily are plastic packaging bags. Plastic packaging bags have brought great convenience to people's lives, but the convenience at this moment has brought long-term harm. The recycling value of plastic packaging is low. In addition to being scattered on urban streets, tourist areas, water bodies, and causing "visual pollution" on both sides of roads and railways during use, it also has potential hazards, such as the structure of traditional plastic packaging bags. Stable, not easy to be degraded by natural microorganisms, and not separated in the natural environment for a long time, which means that if the discarded plastic packaging bags are not recycled, they will become pollutants in the environment and accumulate continuously, causing great harm to the environment h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L97/02C08L23/08C08L3/02C08L29/04C08K3/34C08K3/38
Inventor 林廷柱
Owner 柳州市柳江区联华纸制品厂
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