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Water-soluble thin film with good water dissolving performance and small bag prepared from water-soluble thin film

A water-soluble film, water-dissolving technology, applied in the direction of bags, sacks, flexible containers, etc., can solve problems such as easy residues, and achieve the effect of good stability and good water-soluble performance.

Inactive Publication Date: 2016-06-22
SUN YAT SEN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the edge of the pouch is more likely to remain on the clothes during actual washing

Method used

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  • Water-soluble thin film with good water dissolving performance and small bag prepared from water-soluble thin film
  • Water-soluble thin film with good water dissolving performance and small bag prepared from water-soluble thin film
  • Water-soluble thin film with good water dissolving performance and small bag prepared from water-soluble thin film

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0107] Method of making the sachet

[0108] In the examples, sachets were made according to the following method:

[0109] 1) Firstly, the bottom layer film is heated on the heating roller, and the heating temperature is 30-50°C.

[0110] 2) Use a vacuum to suck the bottom film into an appropriate mold, and when the film fits the mold, fill the liquid content into the mold, and the amount of addition can be adjusted according to the size of the mold.

[0111] 3) The surface film and the bottom film are sealed by heat sealing or wet sealing. Water is preferably applied to the upper membrane surface and pressure is then applied to the seal area to form a seal.

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Abstract

The invention discloses a water-soluble thin film with a good water dissolving performance and a small bag prepared from the water-soluble thin film. The thin film is prepared from allyl acetate and a hydrolyzed derivative of a polymer of a second monomer; the thin film meets the following conditions: (a1) the hydrolyzing degree of the polymer is 90 percent to 99.5 percent; (a2) the viscosity of a water solution of the thin film with the mass percent of 4 percent is 10 centipoises to 25 centipoises; (a3) the thickness of the thin film is 70 microns to 85 microns; (a4) the second monomer is an acrylic monomer. The second monomer is selected from one of acrylic acid, methacrylic acid, acrylate or methacrylate. Before being subjected to ageing treatment, the single small bag prepared from the thin film is completely dissolved in one liter of water within 5 minutes; after being subjected to the ageing treatment, the single small bag prepared from the thin film is completely dissolved in one liter of water within 10 minutes, so that the water-soluble thin film has the very good water dissolving performance.

Description

field of invention [0001] This invention relates to water soluble polymers. In particular, the present invention relates to films made of water-soluble polymers and pouches made of the films. Background technique [0002] In recent years, water-soluble polymers have been widely used to prepare water-soluble films. The latter are used to prepare sachets. Sachets are a suitable packaging material for detergent dosing. Such detergents are primarily fabric detergent compositions, fabric care compositions, dishwashing compositions for automatic dishwashing, and the like. Small bag type detergent products provide consumers with the convenience of accurate dosing and save consumers the trouble of weighing detergent. In addition, the small bag type laundry products also provide consumers with various conveniences such as dispensing, mixing, and pouring of detergent; therefore, they are loved by consumers and valued by the laundry industry. [0003] In terms of performance, one ...

Claims

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Application Information

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IPC IPC(8): C08L31/04C08J5/18B65D30/02
CPCC08L31/04B65D31/00C08J5/18C08J2331/04C08L2203/16
Inventor 马玉杰孙宜恒黄亮陈玉娥吴萍萍张利萍
Owner SUN YAT SEN UNIV
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