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Wood dyeing modifier and preparation method thereof

A modifier, wood technology, applied in the direction of coating, etc., can solve the problems of modifiers such as dimensional stability, little increase in hardness, dye colorability, poor light resistance, single function, etc.

Inactive Publication Date: 2013-06-26
成都安居天下实业有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the existing modifiers for wood dyeing have single functions, the diffusion of dyes in wood is uneven, the colorability and light resistance of dyes are poor, and the modifiers do not improve the dimensional stability and hardness of wood much.

Method used

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  • Wood dyeing modifier and preparation method thereof
  • Wood dyeing modifier and preparation method thereof
  • Wood dyeing modifier and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Accurately weigh the following weights of the raw material components:

[0020] Mass concentration is 200g of formaldehyde aqueous solution of 35%, phenol 50g, urea 300g, melamine 50g, ammoniacal liquor (mass concentration is 20%) 20g, sodium carbonate 1g, ammonium chloride 10g, bulking agent 50g (wherein cornstarch 5g, chlorinated Sodium 45g), acid dye (selected from the composition of acid black N-GRS, acid yellow G, acid red GR of Foshan Nanhai District Ligang Dyeing Co., Ltd., the ratio between each dye can be adjusted arbitrarily according to the required color ) 1g.

[0021] Add formaldehyde solution to the reaction kettle, adjust the pH to 7.0 with sodium carbonate solution, add urea, then raise the temperature to 60°C and react for 2 hours; adjust the pH to 6.5, add phenol and ammonia water, heat up to 70-80°C and react for 30-35 Minutes; use sodium carbonate solution to adjust the pH to 8.0, add melamine and sodium carbonate, after the melamine is completely d...

Embodiment 2

[0023] Accurately weigh the following weights of the raw material components:

[0024]Mass concentration is 200g of formaldehyde aqueous solution of 35%, phenol 60g, urea 300g, melamine 50g, ammonia water (mass concentration is 30%) 30g, potassium carbonate 10g, magnesium chloride 30g, bulking agent 70g (wherein cornstarch 30g, calcium chloride 20g ), acid dye 1g (selected from the composition of Acid Black N-GRS, Acid Yellow G, and Acid Red GR from Foshan Nanhai District Ligang Dyeing Co., Ltd., the ratio of each dye can be adjusted arbitrarily according to the desired color) .

[0025] Add formaldehyde to the reaction kettle, adjust the pH to 8.5 with sodium carbonate solution, add urea, and then raise the temperature to 70°C for 3 hours; adjust the pH to 8.5, add phenol and ammonia water, heat up to 80°C for 35 minutes; use sodium carbonate Adjust the pH of the solution to 8.0, add melamine and potassium carbonate, after the melamine is completely dissolved, keep it warm a...

Embodiment 3

[0027] Accurately weigh the following weights of the raw material components:

[0028] Mass concentration is 200g of formaldehyde aqueous solution of 40%, phenol 80g, urea 370g, melamine 80g, ammoniacal liquor (mass concentration is 25%) 20g, sodium hydroxide 1g, calcium chloride 15g, bulking agent 60g (wherein tapioca starch 30g, magnesium chloride 30g), acid dye 1g (selected from the composition of Acid Black N-GRS, Acid Yellow G, and Acid Red GR from Foshan Nanhai District Ligang Dyeing and Chemical Co., Ltd., the ratio of each dye can be adjusted arbitrarily according to the desired color ).

[0029] Add formaldehyde solution to the reaction kettle, adjust the pH to 7.5 with sodium carbonate solution, add urea, and then heat up to 65°C for 2.5 hours; adjust the pH to 7.0, add phenol and ammonia water, heat up to 75°C for 30 minutes; Sodium solution to adjust the pH to 8.0, add melamine and sodium hydroxide, after the melamine is completely dissolved, keep warm at 75°C for...

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Abstract

The invention relates to a modifier for wood dyeing and a preparation method thereof. The modifier comprises the following components in parts by weight: 200 parts of formaldehyde, 50 to 80 parts of phenol, 300 to 370 parts of urea, 50 to 80 parts of melamine, 20 to 30 parts of ammonia water, 1 to 10 parts of basic catalyst, 10 to 30 parts of auxiliary, 50 to 70 parts of extender, and 1 to 5 parts of acid dye, wherein the formaldehyde is an aqueous solution with formaldehyde mass concentration between 35 and 40 percent, and the ammonia water is an aqueous solution with mass concentration between 20 and 30 percent. The wood dyeing modifier can be used for improving the uniform diffusivity and dyeing property of the dye in woods and the light resistance of the dye, and certainly improving the size dimension and hardness of woods.

Description

technical field [0001] The invention relates to a dyeing modifier, in particular to a modifier for wood dyeing and a preparation method thereof. Background technique [0002] Wood is the natural material with the most affinity with human beings among the three major building materials (reinforced steel, cement, and wood), so it is widely used in construction, furniture, flooring and other fields. Wood color is an important factor that determines the impression of consumers. In order to improve the decorative effect and product value of wood products, it is necessary to color wood and wooden materials. [0003] In foreign countries, the research and production of wood dyeing technology began a long time ago. In 1950, Cox R M and Millary EG in the United States proposed a simple process of wood dyeing. Since then, people have continued to explore wood dyeing technology. In 1951, the American Dyestuff Company used its own dyes to dye wood and called them non-fading dyes, which...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D15/00C08G14/10C08G14/08
Inventor 雷得定毛彦杰周军浩
Owner 成都安居天下实业有限责任公司
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