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Plastic bag production technology

A production process and technology of plastic bags, applied in the direction of bags, sacks, biological packaging, etc., can solve the problems of whether the equipment technology can meet the requirements, unclear production conditions, physical health threats, etc., to achieve low cost and enhance heat resistance. , the effect of accelerated degradation

Active Publication Date: 2014-03-19
TONGCHENG FURUN PACKAGING MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Plastic bags are common daily necessities for people nowadays. Plastic bags are widely used in large and small supermarkets and all walks of life due to the advantages of bright colors, novel patterns, convenient use, and low price. However, the plastic bags currently on the market are mainly polyethylene plastic bags. Mainly, it brings serious pollution to the environment, and it is also called "white pollution" because of its refractory property, and it will release harmful gas itself, which poses a threat to people's health. The application number is CN00110323.7, which discloses a plastic The production process of the bag, which uses high-density polyethylene as the main raw material, mixes processing aids, biodegradation aids, dispersion aids, and photosensitizers in a certain proportion, and processes them into plastic bags under certain conditions. The bag can be degraded by microorganisms, and the degradation speed is faster under the condition of light, which eliminates the environmental pollution caused by plastic bags, but its production conditions are not clear, whether the equipment technology can meet the requirements is not clear, and whether the production can achieve the expected effect ensure

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A kind of plastic bag production technique of the present embodiment is characterized in that, its processing step is as follows:

[0021] (1) Screening of raw materials: plastic particles are screened through an 80-mesh sieve, and the plastic particles are polylactic acid particles;

[0022] (2) Melting: Add the target particles screened in step (1) into the reactor, control the temperature at 175°C, and melt the target particles into a molten state under stirring conditions;

[0023] (3) Modification: Add the modified material into the molten liquid in step (2) and mix evenly. The modified material is a mixture of magnesium aluminum hydrotalcite, ammonium polyphosphate and cobalt powder, and the mixing ratio is 2 :1:1, the content of the mixture is 2% of the molten liquid;

[0024] (4) Film blowing: the mixed molten liquid in step (3) is made into a plastic film through a film blowing machine;

[0025] (5) Color printing: The pattern set according to the requirement...

Embodiment 2

[0028] Example 2 : All the other are identical with described embodiment 1, and difference is that step (1) is changed into 150 mesh sieves, and the content of mixture described in step (3) is 3% of molten liquid, and in step (1), described The plastic particles are polylactic acid particles.

Embodiment 3

[0029] Example 3: The rest is the same as that of Example 1, except that in step (3), the content of the mixture is 5% of the molten liquid, and in step (3), the modification condition is vacuum stirring.

[0030] Example 1 Example 2 Example 3 Complete melting time of plastic particles 50min 35min 55min Plastic bag complete degradation time 35d 28d 20d

[0031] Through the above three examples, the three sets of data in the above table show that when the plastic particles are controlled at 120 mesh, the melting speed of the particles is the fastest, and when the modified material content is 5%, the complete degradation time of the plastic bag is the shortest.

[0032] The present invention completes the production process of plastic bags through seven steps of raw material screening, melting, modification, film blowing, color printing, cutting and bag making of polylactic acid plastic particles, making the process reasonable and simple,...

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PUM

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Abstract

The invention discloses a plastic bag production technology. The technology comprises the steps of screening raw materials, melting, modifying, film blowing, color printing, parting off, and bag making. The plastic bag production technology is reasonable, concise, reasonable in material selection, low in cost, and capable of degrading quickly, greatly shortens technology processes, and reduces environment pollution. Most importantly, the heat resistance, the abrasion resistance and tenacity of a plastic bag are improved on the basis of the original performance of a plastic bag. The plastic bag production technology is safe, convenient, reliable, and has wide market prospects.

Description

[0001] technical field [0002] The production process of plastic rubber that the present invention relates to, particularly relates to a kind of plastic bag production process. Background technique [0003] Plastic bags are a common daily necessities for people nowadays. Plastic bags are widely used in large and small supermarkets and all walks of life due to their bright colors, novel patterns, convenient use, and low price. However, the plastic bags currently on the market are mainly polyethylene plastic bags. Mainly, it brings serious pollution to the environment, and is also called "white pollution" because of its refractory property, and it will release harmful gas itself, which poses a threat to people's health. The application number is CN00110323.7, which discloses a plastic The production process of the bag, which uses high-density polyethylene as the main raw material, mixes processing aids, biodegradation aids, dispersion aids, and photosensitizers in a certain p...

Claims

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Application Information

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IPC IPC(8): B65D30/02C08L67/04C08K3/26C08K3/32C08K3/08B29C55/28
CPCY02W90/10
Inventor 杨峰
Owner TONGCHENG FURUN PACKAGING MATERIAL
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