Moldproof antistaling coating as well as preparation method and application thereof

A coating and anti-mildew technology, applied in anti-fouling/underwater coatings, coatings, paints containing biocides, etc., can solve the problems of poor preservation performance of anti-mildew plastic wrap, oxidative decay of fresh food, loss of original value, etc. , to achieve excellent fresh-keeping effect, good anti-mildew effect, and the effect of preventing microbial growth

Inactive Publication Date: 2018-05-29
CHANGDE JINDE NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the fresh-keeping performance of ordinary anti-mold plastic wrap is poor, and fresh food is easy to oxidize and rot and lose its original value.

Method used

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  • Moldproof antistaling coating as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0028] The method for preparing the above mildew-proof and fresh-keeping coating according to an embodiment of the present invention comprises the following steps S1-S3:

[0029] S1. Weigh each raw material according to the parts by mass.

[0030] S2. Put the resin and solvent into the reaction kettle, heat up to 40-60° C. and stir at 600-1000 rpm for 1-2 hours.

[0031] S3. Put the remaining raw materials into the reaction kettle, and continue stirring at 800-1200 rpm for 1-2 hours to obtain the anti-mold and fresh-keeping coating.

[0032] The preparation method of the above-mentioned mildew-proof and fresh-keeping coating is simple in process and easy to realize. The obtained mildew-proof and fresh-keeping coating is coated on the surface of the film and after the water evaporates to form a coating, it can limit the adsorption and dissolution of water vapor molecules to the greatest extent, and the intermolecular The strong cohesion can inhibit the movement of liquid molec...

Embodiment 1

[0036]Weigh each raw material according to the following parts by mass: 62 parts of resin, 5 parts of sodium diacetate, 1 part of arbutin, 1 part of thymol, 2 parts of Houttuynia cordata injection, 2 parts of astragalin, 2 parts of quercetin 0.4 parts, 1 part of soybean isoflavone, 0.8 parts of spermidine trihydrochloride, 0.2 parts of rutin, 0.8 parts of chlorogenic acid, 32 parts of water, 0.5 parts of surfactant, 0.5 parts of leveling agent and 0.5 parts of dispersant. Among them, the resin is composed of the following components by mass percentage: 32% ethylene-vinyl acetate copolymer, 38% polyvinylidene chloride, 14% ethylene-vinyl alcohol copolymer, 12% core-shell structure acrylate copolymer and 4% IPN structural polyurethane. Put the resin and water into the reaction kettle, heat the reaction kettle to 50° C., turn on the stirring device, and stir at 600 rpm for 1 hour. Then put the remaining raw materials into the reaction kettle, and continue to stir at 1000 rpm for...

Embodiment 2

[0038] The experimental procedure of Example 2 is basically the same as that of Example 1, except that the raw materials do not include ascarin and quercetin.

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PUM

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Abstract

The invention relates to a mold-proof antistaling coating as well as a preparation method and application thereof. The mold-proof antistaling coating is prepared from the following raw materials in parts by mass: 60 to 65 parts of resin, 5 to 10 parts of a mold-proof agent, 30 to 35 parts of a solvent and 0.3 to 2 parts of an assistant, wherein the resin is prepared from the following components in percentage by mass: 28 to 32 percent of ethylene-vinyl acetate copolymer, 36 to 40 percent of polyvinylidine chloride, 12 to 15 percent of ethylene-vinyl alcohol copolymer, 10 to 12 percent of acrylate copolymer with a core-shell structure and 4 to 6 percent of polyurethane with an IPN structure. The mold-proof antistaling coating has the advantages that adsorption and dissolution of water vapormolecules can be restricted to the maximum extent, and external water is effectively prevented from entering the insides of packaging materials so as to inhibit mold; meanwhile, the water vapor molecules inside the packaging materials are also prevented from being diffused to the outside, and the constant moisture inside the packaging materials is kept, so that the effects of retaining freshnessand moisturizing are realized. The mold-proof agent is exposed to the surface of the coating in an embedded manner; after the mold-proof agent is contacted with microorganisms, the microorganisms aredestroyed or prevented from sprouting, so that the aim of preventing microbial growth is achieved.

Description

technical field [0001] The invention relates to the field of mildew-proof and fresh-keeping technology, in particular to a mildew-proof and fresh-keeping coating and its preparation method and application. Background technique [0002] Fresh food is an important source of nutrients that people need daily, and has unique shape, color, aroma and taste. Fresh food has high water content and rich nutrition, but it is not resistant to storage, and it is easy to perish and deteriorate, resulting in a decrease in quality, or even a complete loss of commodity value and nutritional value. The storage and preservation of fresh food is the continuation of production activities. Maintaining food quality and freshness is one of the important goals that people pursue, and it is a problem that must be solved in the process of food storage, transportation and circulation. [0003] At present, in the field of food packaging and transportation in family life, supermarkets, hotels and restaur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D127/08C09D123/08C09D133/04C09D5/14C09D7/63C08J7/04
CPCC09D127/08C08J7/04C08J2427/08C08K2201/014C08L2203/16C08L2205/035C09D5/14C08L23/0853C08L23/0861C08L33/04C08L75/04C08K5/00C08K5/098C08K5/1545
Inventor 余赞钟文杜建军田璐张勇军韦雪雪钱正宇罗臻
Owner CHANGDE JINDE NEW MATERIAL TECH CO LTD
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