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PU (polyurethane) golden oil capable of preventing dyeing and discoloration of veneers and preparation method of PU golden oil

An anti-staining and veneer technology, applied in coatings, polyurea/polyurethane coatings, etc., can solve problems such as performance defects, color change, veneer yellowing, etc., to achieve good weather resistance and chemical resistance, improve weather resistance, The effect of fast evaporation

Inactive Publication Date: 2022-06-28
AODA KOALA PAINT HUIZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The dyed veneer is easy to turn yellow after processing the logs, changing the color of the original dyed veneer, which often brings confusion to furniture manufacturers and home improvement construction teams.
[0003] Since the dyed veneer is made by bleaching the natural veneer first and then dyeing it with dyes through a complicated process, the color change will occur after exposure to the sun. Or the veneer itself turns yellow, which leads to discoloration, and there are certain performance defects

Method used

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  • PU (polyurethane) golden oil capable of preventing dyeing and discoloration of veneers and preparation method of PU golden oil
  • PU (polyurethane) golden oil capable of preventing dyeing and discoloration of veneers and preparation method of PU golden oil
  • PU (polyurethane) golden oil capable of preventing dyeing and discoloration of veneers and preparation method of PU golden oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The invention discloses an anti-staining veneer discoloration PU gold oil, which includes a group A and a B component with a mass ratio of 2:1; the first component includes the following components in parts by mass: 55 parts of hydroxy acrylic resin, 1.5 parts of antioxidants parts, 2 parts of UV absorber, 10 parts of ether ester solvent, 30 parts of ester solvent, 0.1 part of defoamer, 0.1 part of leveling agent, 0.15 part of drier; component B includes the following components by mass : 55 parts of n-butyl acetate, 1 part of dehydrating agent, 35 parts of HDI curing agent.

[0033] In this embodiment, in the first component, the fineness of the hydroxy acrylic resin is 3-10 microns, the viscosity is 2500-3500 CPS, and the hydroxyl value content is 2-3; the ester solvent is n-butyl acetate, and the ether ester solvent is Propylene Glycol Methyl Ether Acetate (PMA); Antioxidant is Ciba 1130 Antioxidant; UV Absorber is UV-2 of Disparon; Leveling Agent is Substrate Wettin...

Embodiment 2

[0036] The invention discloses an anti-staining veneer discoloration PU gold oil, which includes a group A and a B component with a mass ratio of 2:1; the first component includes the following components in parts by mass: 45 parts of hydroxy acrylic resin, 0.5 parts of antioxidants parts, 3 parts of UV absorber, 8 parts of ether ester solvent, 30 parts of ester solvent, 0.5 part of defoamer, 0.075 part of leveling agent, 0.1 part of drier; component B includes the following components by mass : 75 parts of n-butyl acetate, 0.75 parts of dehydrating agent, 25 parts of HDI curing agent.

[0037] In this embodiment, in the first component, the fineness of the hydroxy acrylic resin is 3-10 microns, the viscosity is 2500-3500 CPS, and the hydroxyl value content is 2-3; the ester solvent is ethyl acetate, and the ether ester solvent is propylene glycol Methyl ether acetate (PMA); Antioxidant is Antioxidant Disparon 1010; Ultraviolet light absorber is Disparon's UV-531; Leveling age...

Embodiment 3

[0040] The invention discloses an anti-staining veneer discoloration PU gold oil, which includes a group A and a B component with a mass ratio of 2:1; the first component includes the following components in parts by mass: 35 parts of hydroxy acrylic resin, 2 parts of antioxidants parts, 2.5 parts of UV absorber, 5 parts of ether ester solvent, 40 parts of ester solvent, 0.3 part of defoamer, 0.05 part of leveling agent, 0.2 part of drier; component B includes the following components by mass : 65 parts of n-butyl acetate, 0.5 parts of dehydrating agent, 45 parts of HDI curing agent.

[0041] In this embodiment, in the first component, the fineness of the hydroxy acrylic resin is 3-10 microns, the viscosity is 2500-3500 CPS, and the hydroxyl value content is 2-3; the ester solvents are n-butyl acetate and ethyl acetate, ether The ester solvent is propylene glycol methyl ether acetate (PMA); the antioxidants are the antioxidants Ciba 1130 and Disbalon 1010; the ultraviolet ligh...

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Abstract

The invention discloses PU (polyurethane) gold oil for preventing dyeing and discoloration of veneers and a preparation method thereof. The PU gold oil comprises a component A and a component B in a mass ratio of 2: 1, the component A is prepared from the following components in parts by mass: 35 to 55 parts of hydroxy acrylic resin, 0.5 to 2 parts of antioxidant, 2 to 3 parts of ultraviolet absorbent, 5 to 10 parts of ether ester solvent, 20 to 40 parts of ester solvent, 0.1 to 0.5 part of defoaming agent, 0.05 to 0.1 part of flatting agent and 0.1 to 0.2 part of drier; and the component B comprises the following components in parts by mass: 55-75 parts of n-butyl acetate, 0.5-1 part of a dehydrating agent and 25-45 parts of an HDI curing agent. The dyeing-resistant veneer discoloration-resistant PU golden oil has the characteristics of good dyeing resistance, excellent yellowing resistance and excellent mechanical properties.

Description

technical field [0001] The invention relates to the technical field of furniture coatings, in particular to a kind of anti-staining veneer discoloration PU gold oil and a preparation method thereof. Background technique [0002] With the continuous improvement of people's material and cultural life, the taste of living environment and home is also getting higher and higher, and there are more choices of furniture materials in various colors, the most prominent is the contemporary dyed veneer, also known as beautification. board, technology board, composite board, artificial veneer. A new type of wood that uses technology or means to beautify and process logs to meet the needs of people in modern society for wood use. It is mainly because the dyed veneer can be made very thin and easy to paste, processed and dyed with the original natural material, without losing the natural wood characteristics and natural texture, and can also play a creative special color, it can replace ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D7/20C09D7/48
CPCC09D175/04C09D7/20C09D7/48C08L2201/08C08K5/1345C08K5/132
Inventor 严雁荣陈日云
Owner AODA KOALA PAINT HUIZHOU
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