A kind of wood coating combination of heat transfer roller coating and preparation method thereof

A wood coating and thermal transfer technology, applied in the field of coatings, can solve the problems of difficult adhesion of thermal transfer patterns, inability to complete the thermal transfer process, and reduce the adhesion of topcoats, so as to reduce powder content and improve thermal transfer. Printing performance, the effect of improving the amount of paint applied by the roller

Active Publication Date: 2022-04-22
SOUTH CHINA UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] A glossy white water-based wood paint described in patent CN201710767324.1, the formula contains leveling agent and smoothing agent, both of which will reduce the surface tension of the paint film, and as a primer, it will reduce the effect of the topcoat on the primer. If it is used as a topcoat, the surface of the topcoat will be smooth, which will make it difficult to adhere to the thermal transfer pattern, and the thermal transfer process cannot be completed; at the same time, this formula is applied to roller coating construction, and the viscosity is low under high shear force , the amount of paint on the paint film is low, and a dense paint film cannot be formed under the construction process of two primers and one top coat. The thermal transfer pattern is on the loose paint film, resulting in poor adhesion and incomplete patterns.

Method used

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  • A kind of wood coating combination of heat transfer roller coating and preparation method thereof
  • A kind of wood coating combination of heat transfer roller coating and preparation method thereof
  • A kind of wood coating combination of heat transfer roller coating and preparation method thereof

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preparation example Construction

[0149] The preparation method of roller coating white primer comprises the steps:

[0150] (1) Feeding in the first stage: Add the emulsion and water described in component A into the dispersion tank, then add the dispersant, wetting agent, defoamer, and pH regulator described in component A respectively, and stir to form For the mixture, the speed of mixing and stirring is controlled at 800-1000rpm, while maintaining dispersion for 10-15min, until the fineness is ≤40μm, enter the next stage;

[0151] (2) Feeding in the second stage: Add the titanium dioxide, talc powder, and heavy calcium powder described in component B into the dispersion tank described in step (1), and control the speed at 1500-2000 rpm, and use the frequency at 150-300 kHz, the power density can be 10~30w / L ultrasonic treatment, keep the dispersion for 15-20min, until the fineness is ≤50μm, enter the next stage;

[0152] (3) Feeding in the third stage: Add the mixed solution of film-forming aids, co-solve...

Embodiment 1

[0176] Example 1 Roller coating of white primer and Example 1 Roller coating of white topcoat, according to the national standard GB / T23999-2009, and GB24410-2009 testing, the performance meets the requirements of the national standard.

[0177] Construction technology of the present invention

[0178] Process 1: One base and one side, MDF——1 primer (pass 3 rollers)——dry at 35-40°C for 10 minutes—1 top coat (pass 3 rollers)—35- Dry at 40°C for 40 minutes——heat transfer printing at 200°C and press for 30 seconds——place at room temperature for 1 hour to release the mold.

[0179] Process 2: Two bottoms and one side, MDF——1 primer (pass 3 rollers)——dry at 35-40°C for 10 minutes—1 primer (pass 3 rollers)—35- Dry at 40°C for 10 minutes——1 coat of topcoat (through 3 rollers)——dry at 35-40°C for 40 minutes——heat transfer printing at 200°C and press for 30 seconds—place at room temperature for 1 hour to release the mold .

[0180] Process 3: Three bottoms and two sides, MDF - 1 pri...

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Abstract

The invention discloses a thermal transfer roller-coated wood coating combination and a preparation method thereof. The wood coating combination consists of a roller-coated white primer and a roller-coated white finish paint, wherein the roller-coated white primer and roller-coated white The topcoat consists of film formers, additives, pigments, fillers and water. The beneficial effects of the invention are: the preparation process is simplified and energy-saving; the covering power is good, the filling property is excellent, the leveling property is good, and the storage viscosity is stable; the surface tension is large, and the paint film heat transfer printing adhesion is good.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a thermal transfer roller-coated wood coating combination and a preparation method thereof. Background technique [0002] The commercially available white primer is mainly used for solid-color coating of wood. The construction method is spraying. The performance is mainly good filling and easy to polish. The performance of the white primer for roller coating requires good hiding power and large amount of paint applied by roller coating. 1. Uniform roller coating and shallow roller marks. The main performance of roller coating primer is uniform roller coating and large amount of paint. Because of the deep roller marks, uneven roller coating and low covering power of roller coating after conventional spray primer roller coating , unable to meet the requirements of the roller coating process. [0003] The commercially available roller-coated white topcoat is mainly used for solid-color coat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/04C09D175/04C09D5/00C09D7/61C09D7/44
CPCC09D133/04C09D175/04C09D5/002C09D7/61C09D7/44C08K2003/2241C08K2003/265C08L2205/035C08L2205/025C08L75/04C08K3/22C08K3/26C08K3/34C08K5/06C08K13/02
Inventor 吴银萍黄洪司徒粤
Owner SOUTH CHINA UNIV OF TECH
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