Preparation method of polyethylene flexible printing environment-friendly thin film

A polyethylene and film technology, applied in application, coating, ink and other directions, can solve the problems of difficult recycling of packaging bags, a large amount of waste, and difficult to degrade, and achieve the effect of low cost, strong industrial feasibility, and reduction of waste gas.

Inactive Publication Date: 2013-05-22
SHANGHAI FUKUSUKE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, according to the current situation, such packaging bags will not only produce a large amount of waste during production, which will pollute the environment, but also the used packaging bags are not easy to recycle and degrade, which has become a serious problem of environmental pollution today. The problem

Method used

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  • Preparation method of polyethylene flexible printing environment-friendly thin film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] 1) Mix polyethylene particles and polylactic acid evenly to obtain a mixture;

[0022] 2) Use a film blowing machine to heat and melt the mixture and blow it into a film;

[0023] 3) Use a slitting machine to slit the film;

[0024] 4) Coating the slit film, and the inks and solvents used in the coating process are water-soluble inks and solvents that do not contain toluene. The components of the ink are n-propanol, n-propyl acetate, ethyl Propanol and ethyl acetate, the weight percentages of n-propanol, n-propyl acetate, ethylene-propanol and ethyl acetate are 30% of n-propanol, 10% of n-propyl acetate, 1% of ethylene-propanol, and 1% of ethyl acetate , the composition of solvent has isopropanol, n-propyl acetate and butyl acetate, and the weight percentages of isopropanol, n-propyl acetate and butyl acetate are respectively isopropanol 55%, n-propyl acetate 25%, acetic acid Butyl fat 5%;

[0025] 5) Slitting the coated film;

[0026] 6) Use the bag making machine ...

Embodiment 2

[0029] 1) Mix polyethylene particles and polylactic acid evenly to obtain a mixture;

[0030] 2) Use a film blowing machine to heat and melt the mixture and blow it into a film;

[0031] 3) Use a slitting machine to slit the film;

[0032] 4) Coating the slit film, and the inks and solvents used in the coating process are water-soluble inks and solvents that do not contain toluene. The components of the ink are n-propanol, n-propyl acetate, ethyl Propanol and ethyl acetate, the weight percentages of n-propanol, n-propyl acetate, ethylene-propanol and ethyl acetate are 35% of n-propanol, 15% of n-propyl acetate, 6% of ethylene-propanol, and 5% of ethyl acetate , the composition of the solvent has isopropanol, n-propyl acetate and butyl acetate, and the weight percentages of isopropanol, n-propyl acetate and butyl acetate are respectively 60% of isopropanol, 30% of n-propyl acetate, acetic acid Butyl fat 10%;

[0033] 5) Slitting the coated film;

[0034] 6) Use the bag maki...

Embodiment 3

[0037] 1) Mix polyethylene particles and polylactic acid evenly to obtain a mixture;

[0038] 2) Use a film blowing machine to heat and melt the mixture and blow it into a film;

[0039] 3) Use a slitting machine to slit the film;

[0040] 4) Coating the slit film, and the inks and solvents used in the coating process are water-soluble inks and solvents that do not contain toluene. The components of the ink are n-propanol, n-propyl acetate, ethyl Propanol and ethyl acetate, the weight percentages of n-propanol, n-propyl acetate, ethylene-propanol and ethyl acetate are 40% of n-propanol, 20% of n-propyl acetate, 10% of ethylene-propanol, and 10% of ethyl acetate , the composition of the solvent has isopropanol, n-propyl acetate and butyl acetate, and the weight percentages of isopropanol, n-propyl acetate and butyl acetate are respectively 65% ​​of isopropanol, 35% of n-propyl acetate, acetic acid Butyl fat 15%;

[0041] 5) Slitting the coated film;

[0042] 6) Use the bag ...

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Abstract

The invention relates to the technical field of a preparation method of a thin film material, and in particular relates to a preparation method of a polyethylene flexible printing environment-friendly thin film. The preparation method comprises the following steps of: uniformly mixing polyethylene particles and polyethylene to obtain a mixture; heating and melting the mixture by a film blowing machine and blowing a thin film; slitting the thin film by a slitting machine; coating the slit thin film, wherein printing ink and solvent used for re-treating the coated thin film are waterborne printing ink and solvent without methylbenzene; slitting the coated thin film again; making bags for the thin film by a bag making machine; and finally, obtaining a finished product, testing and putting in a storeroom. Compared with the prior art, according to the preparation method provided by the invention, not only is not the environment polluted, the environment extremely protected and the generation of exhaust gas matters greatly reduced, but also the product quality is ensured. 8 color printing rolls can be quickly switched. The preparation method is simple, low in cost and strong in industrial accessibility.

Description

[technical field] [0001] The invention relates to the technical field of film material preparation methods, in particular to a preparation method of polyethylene flexo-printing environment-friendly film. [Background technique] [0002] The packaging bag made of plastic film is light and thin, impermeable, strong, and low in cost. It is a good packaging material and brings great convenience to people's lives. Therefore, the amount of film packaging bags is increasing. bigger. However, according to the current situation, such packaging bags will not only produce a large amount of waste during production, which will pollute the environment, but also the used packaging bags are not easy to recycle and degrade, which has become a serious problem of environmental pollution today. The problem. Therefore, if can provide a kind of very environment-friendly film preparation method, and reduce the problems such as environmental pollution that the film packaging bag after use causes, ...

Claims

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Application Information

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IPC IPC(8): C08J7/06C08L23/06C08L67/04C09D11/02C09D11/03
Inventor 荐田茂幸
Owner SHANGHAI FUKUSUKE IND
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