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Preparation process for water-soluble film

A water-soluble film and appropriate amount of water technology, which is applied in the field of water-soluble film preparation technology, can solve the problems of high water-soluble temperature requirements, narrow film width, and low efficiency, so as to reduce steps and waste, increase film width, and improve production Effects on Efficiency and Yield

Inactive Publication Date: 2020-06-05
江门市爱格环保材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing film production methods have low production capacity and low efficiency, and the width of the produced film is narrow, and the water-soluble temperature of the film is high, so it cannot be dissolved in multiple temperature ranges.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A water-soluble film preparation process, comprising the following materials: 100kg of polyvinyl alcohol, 3.6kg of talcum powder, 0.05kg of zinc stearate, and an emulsifier.

[0019] (1) For mixing materials, first dissolve 100kg of polyvinyl alcohol with an appropriate amount of water, heat it in a water bath at a temperature of 70-80°C for 10 minutes, and add glycerin, 3.6kg of talcum powder, 0.05kg of zinc stearate and an emulsifier during the heating process , and then use a stirring device to mix them;

[0020] (2) Granulating, pouring the above-mentioned stirred mixture into a grinding machine, drying the ground powder, adding an adhesive, and then continuously passing it into a twin-screw granulator, extruding to form a tubular film blank;

[0021] (3) For finished film blowing, put the dry film blank into the lower hopper, and enter the screw from the hopper by the weight of the particles themselves. When the pellets contact the beveled edge of the thread, the b...

Embodiment 2

[0023] A water-soluble film preparation process, comprising the following materials: 100kg of polyvinyl alcohol, 1.6kg of glycerin, 3.6kg of talcum powder, 0.05kg of zinc stearate, and an emulsifier.

[0024] (1) For mixing materials, first dissolve 100kg of polyvinyl alcohol with an appropriate amount of water, heat it in a water bath at a temperature of 70-80°C for 10 minutes, and add glycerin, 3.6kg of talcum powder, 0.05kg of zinc stearate and an emulsifier during the heating process , and then use a stirring device to mix them;

[0025] (2) Granulating, pouring the above-mentioned stirred mixture into a grinding machine, drying the ground powder, adding an adhesive, and then continuously passing it into a twin-screw granulator, extruding to form a tubular film blank;

[0026] (3) For finished film blowing, put the dry film blank into the lower hopper, and enter the screw from the hopper by the weight of the particles themselves. When the pellets contact the beveled edge o...

Embodiment 3

[0028] A water-soluble film preparation process, comprising the following materials: 100kg of polyvinyl alcohol, 2.4kg of glycerin, 3.6kg of talcum powder, 0.05kg of zinc stearate, and an emulsifier.

[0029] (1) For mixing materials, first dissolve 100kg of polyvinyl alcohol with an appropriate amount of water, heat it in a water bath at a temperature of 70-80°C for 10 minutes, and add glycerin, 3.6kg of talcum powder, 0.05kg of zinc stearate and an emulsifier during the heating process , and then use a stirring device to mix them;

[0030] (2) Granulating, pouring the above-mentioned stirred mixture into a grinding machine, drying the ground powder, adding an adhesive, and then continuously passing it into a twin-screw granulator, extruding to form a tubular film blank;

[0031] (3) For finished film blowing, put the dry film blank into the lower hopper, and enter the screw from the hopper by the weight of the particles themselves. When the pellets contact the beveled edge o...

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PUM

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Abstract

The invention discloses a preparation process for a water-soluble film. The water-soluble film includes the following materials of 100kg polyvinyl alcohol, glycerinum, 3.6kg talcum powder, 0.05kg zincstearate and emulsifying agents. The content of the glycerinum is selected from 0, 1.6kg, 2.4kg, 3.2kg and 4kg. The preparation process for the water-soluble film uses the polyvinyl alcohol, the glycerinum, the talcum powder and the zinc stearate for mixing granulation and then film blowing, the steps and waste materials are reduced, the production efficiency and the yield are greatly improved, the width of the film is increased, and the soluble temperature range of the film is increased.

Description

technical field [0001] The invention relates to the technical field of water-soluble films, in particular to a preparation process of water-soluble films. Background technique [0002] The water-soluble film is made of water-soluble polymer materials that can be quickly dissolved in water, and is made through a specific film-forming process. It is a water-soluble and degradable novel green packaging material. [0003] However, the existing film production methods have low production capacity and low efficiency, and the width of the produced film is narrow, and the water-soluble temperature of the film is high, so it cannot be dissolved in multiple temperature ranges. Contents of the invention [0004] The purpose of the present invention is to provide a water-soluble film preparation process to solve the problems raised in the above-mentioned background technology. [0005] In order to achieve the above object, the present invention provides the following technical propos...

Claims

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Application Information

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IPC IPC(8): B29C69/02B29C48/10B29B9/06B29K29/00
CPCB29B9/06B29K2029/04B29C48/0018B29C48/022B29C48/10
Inventor 赵运财
Owner 江门市爱格环保材料有限公司
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