Plastic packaging film for production of laundry gel beads as well as preparation method and application of plastic packaging film

A technology of laundry beads and films, which is applied in the field of plastic film for the production of laundry beads and its preparation, and can solve the problems of slow and incomplete dissolution of plastic film when it meets water

Inactive Publication Date: 2021-07-06
ZHEJIANG FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides a plastic sealing film for the production of laundry beads and its preparation method and application. The formula of the existing plastic sealing film is improved, and it is equipped with an energy-saving and efficient melt blow molding preparation method to solve the problem of the plastic sealing film being exposed to water. Solve problems such as slow dissolution and incomplete dissolution, while reducing production costs, convenient storage and use, and thus improving the efficiency of laundry washing

Method used

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  • Plastic packaging film for production of laundry gel beads as well as preparation method and application of plastic packaging film
  • Plastic packaging film for production of laundry gel beads as well as preparation method and application of plastic packaging film
  • Plastic packaging film for production of laundry gel beads as well as preparation method and application of plastic packaging film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A plastic sealing film used for the production of laundry pods, the plastic sealing film is made of the following raw materials in parts by weight:

[0038] 100 parts of polyvinyl alcohol;

[0039] Regulator 0.1 part;

[0040] 0.3 parts of plasticizer;

[0041] 0.1 part of compound polylactic acid;

[0042] 0.2 parts of neutral desiccant;

[0043] 0.3 parts of bittering agent;

[0044] 0.05 parts of antistatic agent;

[0045] 0.3 parts of stabilizer.

[0046] Among them, the degree of polymerization of polyvinyl alcohol is 1000, and the degree of alcoholysis is 70%. The regulator is a mixture of itaconic acid and sodium 2-acrylamido-2-methylpropanesulfonate in a molar ratio of 1:1.

[0047] Concrete preparation method is as follows:

[0048] S1: Modification; first add the polyvinyl alcohol into the mixer, then slowly add the plasticizer, regulator and compound polylactic acid at a stirring speed not higher than 500rpm, continue stirring for 5-8 minutes, Increa...

Embodiment 2

[0054] A plastic sealing film used for the production of laundry pods, the plastic sealing film is made of the following raw materials in parts by weight:

[0055] 100 parts of polyvinyl alcohol;

[0056] Regulator 0.3 parts;

[0057] 0.3 parts of plasticizer;

[0058] 0.1 part of compound polylactic acid;

[0059] 0.2 parts of neutral desiccant;

[0060] 0.3 parts of bittering agent;

[0061] 0.1 parts of antistatic agent;

[0062] 0.3 parts of stabilizer.

[0063] Among them, the degree of polymerization of polyvinyl alcohol is 1000, and the degree of alcoholysis is 70%. The regulator is a mixture of itaconic acid and sodium 2-acrylamido-2-methylpropanesulfonate in a molar ratio of 1:1.

[0064] Concrete preparation method is with embodiment 1.

Embodiment 3

[0066] A plastic sealing film used for the production of laundry pods, the plastic sealing film is made of the following raw materials in parts by weight:

[0067] 100 parts of polyvinyl alcohol;

[0068] Regulator 0.5 parts;

[0069] 0.3 parts of plasticizer;

[0070] 0.1 part of compound polylactic acid;

[0071] 0.2 parts of neutral desiccant;

[0072] 0.3 parts of bittering agent;

[0073] 0.1 parts of antistatic agent;

[0074] 0.3 parts of stabilizer.

[0075] Among them, the degree of polymerization of polyvinyl alcohol is 1000, and the degree of alcoholysis is 70%. The regulator is a mixture of itaconic acid and sodium 2-acrylamido-2-methylpropanesulfonate in a molar ratio of 1:1.

[0076] Concrete preparation method is with embodiment 1.

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Abstract

The invention discloses a plastic packaging film for production of laundry gel beads as well as a preparation method and application of the plastic packaging film. The improved plastic packaging film is prepared from the following raw materials in parts by weight: 80 to 100 parts of polyvinyl alcohol, 0.1 to 0.5 part of a regulator, 0.1 to 0.5 part of a plasticizer, 0.1 to 0.2 part of compound polylactic acid, 0.2 to 0.5 part of a neutral drying agent, 0.1 to 0.5 part of a bitter agent, 0.05 to 0.2 part of an antistatic agent and 0.1 to 0.5 part of a stabilizer, wherein the regulator is a mixture of any one selected from itaconic acid, acrylic acid and maleic acid and sulfonic acid salt. According to the invention, on one hand, the acid and alkali resistance of the plastic packaging film can be improved, and on the other hand, the alcoholysis degree range of polyvinyl alcohol can be widened; and meanwhile, the energy-saving and efficient melt blow molding preparation method is matched for use, so the problems that a plastic packaging film is dissolved slowly and incompletely when meeting water are solved, production cost is reduced, storage and use are convenient, and then, clothes washing efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of laundry pods, in particular to a plastic sealing film for the production of laundry pods, a preparation method and application thereof. Background technique [0002] Laundry beads are a new type of concentrated detergent wrapped in a water-soluble film. After contact with water, the water-soluble film can dissolve within a certain period of time and release the wrapped liquid to achieve the function of washing and caring for clothes. Its mode of action requires that the plastic film wrapping the laundry beads can dissolve and release the concentrated detergent contained within a predetermined time. At present, the water-soluble film with polyvinyl alcohol (hereinafter referred to as PVA) as the main raw material is most widely used in the field of daily chemicals because of its advantages of environmental protection, light weight, and suitable for small-volume packaging. The plastic film used in the prod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/18C08L29/04C08L67/04
CPCC08J5/18C08J2329/04C08J2467/04
Inventor 倪益华倪忠进宋源普吕艳
Owner ZHEJIANG FORESTRY UNIVERSITY
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