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Method for regulating dissolving speed of water-soluble film

A water-soluble film and water-dissolving technology, which is applied in the field of adjusting the formula ratio of water-soluble films, and can solve the problems of water-soluble speed regulation and other problems of water-soluble films

Inactive Publication Date: 2005-07-06
郝喜海
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AI Technical Summary

Problems solved by technology

[0003] The object of the invention is to propose a formula method for regulating and controlling the water dissolution rate of a water-soluble film, that is, after the temperature of the water and the thickness of the water-soluble film are given, the water-dissolution rate is regulated by adjusting the ratio of each component of the film-forming agent in the formula, So as to solve the problem of water-soluble film water dissolution rate control

Method used

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Embodiment Construction

[0014] The water-soluble film film-making process of the present invention is to add film-forming components, plasticizers, starch and water into the reaction kettle in proportion, stir and heat to a certain temperature (80 ° C ~ 95 ° C) to make gels and then reduce the temperature. Add quick-drying agent, surfactant, thickener, essence, pigment and other additives at a certain temperature (60°C-70°C), stir evenly, and make rubber compound. The solid content of the rubber compound is 13%-18%. After the material is left to stand for defoaming, use a hydrosol salivating machine to cast the film into a film.

[0015] Example 1

[0016] Note: Agitate slightly during the dissolution process, and there will be no residue after complete dissolution.

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Abstract

The invention provides a method for controlling the water dissolution rate of a water-soluble film. Dry agent, etc., mixed at 85°C to 95°C to make glue, the solid content of glue liquid is 13% to 18%, and then the film is made by solution casting method. The regulation of water dissolution rate is realized by adjusting the proportion of partially alcoholyzed polyvinyl alcohol, completely alcoholyzed polyvinyl alcohol and starch. Using the wood invention, the water-soluble start time and speed of the water-soluble film at room temperature (25°C) can be arbitrarily set according to user requirements. The film is water-soluble and biodegradable, and can be used for packaging pesticides, detergents, pigments, dyes, cleaning agents, water treatment agents, mineral additives, concrete additives, chemical reagents for photography and chemical reagents for gardening care, etc. The chemical products used can also be used as water transfer film for water transfer printing, embroidery carrier, etc.

Description

technical field [0001] The invention relates to a method for regulating the water dissolution rate of a water-soluble film; in more detail, it is a method for adjusting the formula ratio of a water-soluble film. By using this method, the water-dissolution rate of a thin water-soluble film can be adjusted and set arbitrarily. ; The film is environmentally friendly and biodegradable into CO2 and H2O. Background technique [0002] At present, water-soluble film products are mainly produced in the United States, Japan, France and other countries, and only the water-soluble film product of the present invention is put into the market in China. Foreign products mainly use completely alcoholyzed polyvinyl alcohol or partially alcoholyzed polyvinyl alcohol, add plasticizers (glycerin, etc.), surfactants, etc., to make glue, and cast them into products. The main varieties are high temperature There are two types of water-soluble film (completely alcoholyzed polyvinyl alcohol as the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J5/18C08L3/02C08L29/04
Inventor 郝喜海
Owner 郝喜海
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