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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: 2002-08-14
郝喜海
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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, flavor, pigment and other additives to 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

A process for preparing the water-soluble film with regulatable soluble speed includes proportionally mixing partly alcoholzed polyvinyl alcohol, fully alcoholyzed polyvinyl alcohol, starch, plasticizer, surfactant, and drying agent at 85-95 deg.C and doctor blading. Its soluble speed can be regulated by controlling the ratio of partly alcoholyzed polyvinyl alcohol, fully alcoholyzed polyvinyl alcohol, and starch. Said film has good water soluability and bio-degradation.

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 to CO 2 and H 2 O. 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 t...

Claims

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Application Information

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