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Scratch-resistant water-based gloss oil and preparation method thereof

A water-based varnish and scratch-resistant technology, which is applied in coatings, polyurea/polyurethane coatings, etc., can solve the problems that the friction coefficient cannot be met, the friction coefficient of the packaging surface is low, and the surface of the medicine box is easy to be scratched. Achieve no irritating odor, improve scratch resistance, enhance strength and toughness

Pending Publication Date: 2022-07-22
北京金印联国际供应链管理有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the production process of the medicine box, during the die-cutting, quality inspection and die-cutting process, the conveyor belt is in contact with the medicine box, the surface of the medicine box is easily scratched, scratches often appear, and the varnish is scraped off in severe cases
Especially at the incision of die-cutting, the situation of product scrapping due to the above problems is extremely serious
Due to the special production process and equipment used in pharmaceutical packaging, the existing ordinary wear-resistant varnish cannot improve the above problems. Only the use of varnish products with slip agents can overcome the above problems by improving the coefficient of friction
However, after this kind of varnish product is printed on the packaging surface, the friction coefficient of the packaging surface is too low, and it cannot meet the requirements for the friction coefficient of the automatic machine envelope in the later stage.

Method used

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  • Scratch-resistant water-based gloss oil and preparation method thereof
  • Scratch-resistant water-based gloss oil and preparation method thereof
  • Scratch-resistant water-based gloss oil and preparation method thereof

Examples

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preparation example Construction

[0039] The scratch-resistant water-based varnish of the present application is preferably prepared by the following preparation method, and the prepared varnish is of excellent quality. The preparation method designed by this application includes the following steps:

[0040] S1, according to the formula amount, pour deionized water into the container, add the water-soluble acrylic resin of the formula amount, and then continue to stir for more than 20min;

[0041] S2, under stirring conditions, slowly add the leveling agent, wetting agent, anti-scratch agent and antifoaming agent of the formula to the mixed solution obtained in step S1 successively, and then continue to stir for more than 10min;

[0042] S3, under stirring conditions, successively add the polyacrylate emulsion, polyurethane-acrylate resin and wax emulsion of formula amount to the mixed solution obtained in step S2, and then continue to stir for more than 30min;

[0043] S4, under stirring conditions, add the...

Embodiment 1

[0057] The scratch-resistant water-based varnish in this embodiment has the following components and mass percentages: 25% of polyacrylate emulsion, 25% of polyurethane-acrylate resin, 35% of water-soluble acrylic resin, and a polymer with a particle size of 0.5-0.6 μm. Propylene wax wax emulsion 5%, film-forming aid 0.75%, Digao 482 leveling agent 0.25%, Surfynol OP-340 wetting agent 0.5%, defoamer 0.5%, Dow Corning DC-51 scratch resistance agent 1.4%, Deionized water 6.6%.

[0058] The scratch-resistant water-based varnish of the present embodiment is prepared by the following process steps:

[0059] S1. According to the formula amount, pour deionized water into the container, the stirring speed is 400rpm / min, add the formula amount of acrylic resin, and then continue to stir for 20min.

[0060] S2, with the stirring speed of 400rpm / min, under stirring conditions, slowly add the leveling agent, wetting agent, anti-scratching agent and defoaming agent of the formula to the m...

Embodiment 2

[0064] The scratch-resistant water-based varnish in this embodiment has the following components and mass percentages: 25% of polyacrylate emulsion, 30% of polyurethane-acrylate resin, 32% of water-soluble acrylic resin, and polytetrafluoroethylene with a particle size of 0.8-1 μm. Vinyl fluoride wax wax emulsion 2%, film-forming aid 1.5%, Digao 482 leveling agent 0.2%, OT75 wetting agent 1%, mixed defoamer 0.1%, nanosil4040 scratch resistance agent 2%, deionized water 6.2% %.

[0065] The scratch-resistant water-based varnish of the present embodiment is prepared by the following process steps:

[0066] S1. According to the formula amount, pour deionized water into the container, the stirring speed is 400rpm / min, add the water-soluble acrylic resin of the formula amount, and then continue to stir for 20min.

[0067] S2, with a stirring speed of 400rpm / min, under stirring conditions, slowly add the leveling agent, wetting agent, scratch resistance agent and defoaming agent of...

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Abstract

The invention discloses scratch-resistant water-based gloss oil and a preparation method thereof. On one hand, the scratch-resistant water-based gloss oil provided by the invention is prepared from the following components in percentage by mass: 25 to 30 percent of polyacrylate emulsion, 25 to 30 percent of polyurethane-acrylate resin, 30 to 35 percent of water-soluble acrylic resin, 2 to 5 percent of wax emulsion, 0.75 to 1.5 percent of coalescing agent, 0.2 to 0.5 percent of flatting agent, 0.5 to 1 percent of wetting agent, 0.1 to 0.5 percent of defoaming agent, 1 to 2 percent of scratch-resistant agent and more than 5 percent of deionized water. On the other hand, the invention further provides a preparation method of the scratch-resistant water-based gloss oil. The friction coefficient is proper after curing, and the scratch resistance is very excellent.

Description

technical field [0001] The present application relates to the technical field of printing varnish, in particular to a scratch-resistant water-based varnish and a preparation method. Background technique [0002] In the field of packaging and printing, in order to improve the gloss of the product surface and the delicacy of the product itself, varnish is usually used to process the surface of the product. Existing varnishes mainly include solvent-volatile varnishes, UV-curable varnishes and water-based varnishes. Solvent-volatile varnish uses benzene, esters and alcohols as solvents. After evenly brushing on the surface of the product, through heating treatment, the solvent in the varnish is heated and volatilized, and the film-forming resin remains on the surface of the product to form a bright film. Floor. UV-curable varnish is a solvent-free glazing coating. After the glazing coating is evenly brushed on the surface of the product, under the irradiation of ultraviolet li...

Claims

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Application Information

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IPC IPC(8): C09D133/00C09D133/04C09D175/14C09D7/65C09D7/61C09D7/80
CPCC09D133/00C09D133/04C09D7/65C09D7/61C09D7/68C09D7/80C08L2205/025C08L2205/035C08L33/04C08L75/14C08L23/12C08L83/04C08L27/18C08K3/36C08L23/30C08L33/00C08L23/06
Inventor 闫继芳徐天平王银磊杨晓
Owner 北京金印联国际供应链管理有限公司
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