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Method for producing composite membrane

A production method and composite film technology, applied in the direction of paper/cardboard containers, containers, envelope/bag manufacturing machinery, etc., can solve the problems of poor accuracy, composite film deviation, poor stability, etc., to improve stability, The effect of improving accuracy

Inactive Publication Date: 2007-07-11
HUANGSHAN NOVEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Plastic color printing composite films are widely used in the packaging of daily chemicals, food, and pharmaceuticals. Automatic packaging equipment requires more precise friction coefficients for composite films. When the friction coefficient of the composite film is too small, it will cause the composite film to deviate; the friction coefficient is too large , it will cause the composite film to go unsmooth, and the above two situations will make the automatic packaging unable to proceed normally.
Usually, the production method of composite film is film making, color printing, compounding, aging, slitting, and bag making processes. Manufacturers usually only consider the total amount of slip agent added in the film making process to control the friction coefficient of the inner layer of the composite film. In this method, the deviation of the friction coefficient can only be controlled to ±0.3, and the accuracy is very poor. At the same time, the deviation of the friction coefficient of different batches of products can only reach ±0.2, and the stability is not good.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1: a kind of production method of composite film, comprises film making, color printing, composite, ripening, slitting, bag-making process,

[0020] In the film forming process, the total amount of slip agent added was 800 ppm.

[0021] In the composite process, add polyether adhesive, the amount is 1g / cm 2 .

[0022] The curing temperature in the curing process is 45° C., and the curing time is 3 hours.

Embodiment 2

[0023] Embodiment 2: Except that the consumption of adding polyether adhesive is 2g / cm 2 Outside, all the other are identical with embodiment 1.

Embodiment 3

[0024] Embodiment 3: except that the consumption of adding polyether adhesive is 4g / cm 2 Outside, all the other are identical with embodiment 1.

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Abstract

The invention relates to a method for producing composite film, which comprises preparing film, printing colorfully, compositing, aging, cutting, and bagging. In the compositing process, it adds polyether adhesive at 1-4g / cm2. Compared with present technique, the bias of friction factor is lower than +-0.1, to improve accuracy. And the friction factor bias of different batches can reach +-0.1, to improve stability.

Description

Technical field: [0001] The invention belongs to the technical field of a production method of a composite film, in particular to the technical field of a production method of a plastic color printing composite film. Background technique: [0002] Plastic color printing composite films are widely used in the packaging of daily chemicals, food, and pharmaceuticals. Automatic packaging equipment requires more precise friction coefficients for composite films. When the friction coefficient of the composite film is too small, it will cause the composite film to deviate; the friction coefficient is too large , it will cause the composite film to go unsmooth, and the above two situations will make the automatic packaging unable to proceed normally. Usually, the production method of composite film is film making, color printing, compounding, aging, slitting, and bag making processes. Manufacturers usually only consider the total amount of slip agent added in the film making process...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B31B37/00C09J175/08
Inventor 章卫东谢文汇陈旭周黎丽胡继超胡鸿波
Owner HUANGSHAN NOVEL
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