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Thin film used for laundry bag of dirty articles and preparation method thereof

A technology for laundry bags and dirt is applied in the field of films for dirty laundry bags and its preparation, which can solve the problems of clothing dyeing, affecting the use effect, etc., and achieve the effects of improving production efficiency and solving the precipitation and color fading of low molecular substances.

Inactive Publication Date: 2016-04-13
佛山市博维环保材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a film for laundry bags for dirt and its preparation method, aiming at solving the problem of precipitation of existing films for laundry bags of dirt, obvious precipitation of oily low-molecular substances on the surface of the film, and the loss of color caused by clothing It is stained and affects the use effect

Method used

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  • Thin film used for laundry bag of dirty articles and preparation method thereof

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preparation example Construction

[0046] Such as figure 1 Shown, a kind of preparation method of film for dirt laundry bag as described above, specifically comprises the following steps:

[0047] Step S100: according to the formula ratio, put the partially alcoholyzed polyvinyl alcohol, the completely alcoholyzed polyvinyl alcohol, the crosslinking agent, the lubricant and the reinforcing agent into the high mixer and stir, and at the same time, put the plasticizer, film-forming The additives are sequentially added to the high mixer and mixed evenly to obtain a mixed powder;

[0048] Step S200: use a granulator to granulate the mixed powder;

[0049] Step S300: using a film blowing machine to blow the particles obtained in step S200 into a film to obtain a film for a finished dirty laundry bag.

[0050] Specifically, in the step S200, the mixed powder is granulated using a granulator at a temperature of 120-150°C.

[0051] Specifically, in the step S300, the particles obtained in the step S200 are blown int...

Embodiment 1

[0055] According to the ratio of parts by weight, the film for the dirty laundry bag includes: PVA0599: 20 parts, PVA: 208870 parts, glycerol: 15 parts, propylene glycol: 5 parts, sodium dodecylbenzenesulfonate: 1 part, titanium dioxide : 1 part, water: 30 parts, borax: 1 part.

[0056] Preparation method: according to the formula ratio, put partly alcoholyzed polyvinyl alcohol, completely alcoholyzed polyvinyl alcohol, cross-linking agent, lubricant and reinforcing agent into a high-mixer and stir, and at the same time, plasticizer, film-forming The additives are sequentially added into the high-mixer and mixed evenly to obtain mixed powder; the mixed powder is granulated in the range of 120-150°C by a granulator; the granules obtained in step S200 are granulated by a blown film machine Blow molding into a film to obtain a finished film for laundry bags.

Embodiment 2

[0058] According to the ratio of parts by weight, the film for the dirty laundry bag includes: PVA1788: 90 parts, PVA1799: 10 parts, glycerol: 40 parts, polyethylene glycol: 10 parts, potassium lauryl polyether sulfate: 1 part, Tannin: 2 parts, Silica: 15 parts, Water: 5 parts.

[0059]Preparation method: according to the formula ratio, put partly alcoholyzed polyvinyl alcohol, completely alcoholyzed polyvinyl alcohol, crosslinking agent, lubricant and reinforcing agent into a high-mixer and stir, and at the same time, plasticizer, film-forming The additives are sequentially added to the high-mixer and mixed evenly to obtain a mixed powder; the mixed powder is granulated in the range of 120-150°C using a granulator; Blow molding into a film to obtain a finished film for laundry bags.

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Abstract

The invention discloses a thin film used for a laundry bag of dirty articles and a preparation method thereof. The thin film comprises the following materials in parts by weight: 60-100 parts of partial alcoholysis polyvinyl alcohol, 1-40 parts of complete alcoholysis polyvinyl alcohol, 20-50 parts of plasticizer, 1-30 parts of film-forming additive, 0.01-1 part of cross-linking agent, 0.1-1 part of lubricating agent and 1-15 parts of reinforcing agent. The thin film used for the laundry bag of dirty articles is subjected to extrusion molding at a lower temperature by adopting a dry method, thus improving the production efficiency and also solving the problems of precipitation and fading of the surface of the thin film.

Description

technical field [0001] The invention relates to a film, in particular to a film for a dirty laundry bag and a preparation method thereof. Background technique [0002] After being used by patients, medical gowns, bed sheets, and quilts are likely to contain germs, so it is best to wash and disinfect them separately. Especially clothing used by patients in infectious disease wards. The existing hospital treatment method is to collect the used clothes and quilts into a reusable cloth bag, and then clean them after sorting them by the laundry center. This will easily increase the risk of infection of cleaning personnel and collecting personnel. [0003] Water-soluble packaging bags made of PVA materials will solve the above problems well. The PVA material is soluble in water. By adjusting the formula of the material, the speed and degree of the material soluble in water are controlled, so that the dirty clothes are collected and the packaging bag has good strength and can be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L29/04C08L71/02C08K13/02C08K5/053C08K3/38C08K3/36C08K3/22
CPCC08L29/04C08J5/18C08J2329/04C08K2201/014C08L2203/16C08L2205/025C08L2205/03C08L2205/035
Inventor 黄伟洪
Owner 佛山市博维环保材料有限公司