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Condensed polyvinyl alcohol medium main agent and preparation process and products use thereof

A polyvinyl alcohol medium and technology of polyvinyl alcohol, applied in the field of shrinkage polyvinyl alcohol medium main agent and its preparation process and products, can solve the problem of easily damaged film, inferior clear and bright effect of traditional photos, and low cohesion of surface coating And other issues

Inactive Publication Date: 2004-04-28
上海杭州湾数码科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, there are digital photo paper and other recording media in the existing technology. The surface coating cohesion of the consumables is small, and the film of the ink coating layer is easily damaged, and the graphics and texts produce white spots and spider webs, which are inferior to the clear and bright effect of traditional photos.

Method used

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  • Condensed polyvinyl alcohol medium main agent and preparation process and products use thereof
  • Condensed polyvinyl alcohol medium main agent and preparation process and products use thereof

Examples

Experimental program
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Effect test

Embodiment Construction

[0005] The preparation process of the shrinkable polyvinyl alcohol medium main agent is: 1. The ratio of the mixed solution is: Weigh 800kg of deionized water and 300kg of isopropanol, put them into the PVC dissolution tank, stir evenly, and the stirring speed is 60-80RPM / min, the time is 30 minutes, 300kg in barrels is stored separately, 800kg of the mixed solution is kept in the dissolution tank, the heating steam pipe is turned on and heated to 30°C-40°C, and 200kg of polyvinyl alcohol powder is poured in, and the temperature is maintained for 30 minutes to promote polyvinyl alcohol The powder is saturated with water. 2. The polyvinyl alcohol can be completely dissolved by heating to 80°C~85°C. After the heat preservation lasts for 1 hour, close the steam pipe valve, stop heating, and when the cooling water pipe is cooled to 60°C, add 300kg of the mixed solution in step 1. . 3. When the temperature of the material drops to 35°C-40°C, it can be filtered and loaded into bar...

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PUM

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Abstract

The present invention relates to a condensed polyvinyl alcohol medium main agent, its preparation process and application of its product. Its formula includes water and polyvinyl alcohol. It is characterized by that its formula also contains isopropanol, water is deionized water and polyvinyl alcohol is its power material. Its formula ratio of deionized water 800 kg, isopropanol 300 kg and polyvinyl alcohol powder 200 kg. Its preparation process includes the following steps: according to the formula ratio stirring and mixing them above-mentioned materials at normal temp., taking 1 / 3 quantity of the above-mentioned mixture and heating other portion, adding polyvinyl alcohol powder, constant-temp. dissolving, forced cooling, adding the above-mentioned 1 / 3 liquid mixture, mixing so as to obtain the invented product. It possesses extensive application range.

Description

1. Technical field: [0001] The invention relates to a composition based on a polymer compound, and in particular discloses a shrinkable polyvinyl alcohol medium main agent and its preparation process, which is applied to plasticized synthetic film and paper as a base material, and the bottom layer is coated to enhance bonding. Continuous effect synthetic primer, surface coating shrinkable polyvinyl alcohol medium main agent to generate electronic image recording medium consumables. 2. Background technology: [0002] At present, the digital photo paper and other recording media of existing technology have low cohesive force of the surface paint of the consumables, and the film of the ink paint layer is easily damaged, and the pictures and texts produce white spots and spider webs, which are inferior to the clear and bright effect of traditional photos. 3. Contents of the invention: [0003] The technical problem to be solved by the present invention, such as substrates suc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L29/14
Inventor 钟国敏
Owner 上海杭州湾数码科技发展有限公司
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