Water-borne wood colorant and coloring method

A coloring agent and wood technology, applied in wood treatment, wood processing equipment, wood treatment details, etc., can solve the problems of uneven wood permeability, poor coloring effect of wood surface, etc., to facilitate spreading and wetting, and solve Uneven permeability of wood, effect of increasing roughness

Active Publication Date: 2019-08-23
RES INST OF FORESTRY NEW TECH CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of uneven wood permeability and poor wood surface coloring effect in the existing wood coloring technology, the present invention provid

Method used

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  • Water-borne wood colorant and coloring method
  • Water-borne wood colorant and coloring method
  • Water-borne wood colorant and coloring method

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0036] Example 1

[0037] A water-based wood stain, the formula is: 5 parts of Tempo-oxidized nanocellulose (CNC), 60 parts of carbon black, 12 parts of dopamine, 20 parts of polyacrylate resin, 200 parts of water.

[0038] The present embodiment also provides the preparation method of the water-based wood stain, comprising: adding Tempo-oxidized nanocellulose (CNC) into water according to the formula and ultrasonically vibrating for 15 minutes at about 65°C; Stir in a homogenizer for 30 minutes, then add dopamine and polyacrylate resin, and stir for 1 hour at a speed of 200r / min.

[0039] This embodiment also provides a wood coloring method, comprising: performing plasma pretreatment on wood before coloring; and using the water-based wood colorant of this embodiment for coloring. Specifically, the wood was pretreated with a plasma spray gun DBD, the working gas was He, the plasma was generated in the gun and sprayed onto the wood surface, and the gas velocity was 20 L / min. ...

Example Embodiment

[0046] Example 2

[0047]A water-based wood stain, the formula is: 8 parts of Tempo-oxidized nanocellulose (CNC), 40 parts of titanium dioxide, 10 parts of dopamine, 15 parts of polyurethane resin, and 180 parts of water.

[0048] This embodiment also provides the preparation method of the water-based wood stain, comprising: adding Tempo-oxidized nanocellulose (CNC) into water according to the formula and ultrasonically vibrating for 30 minutes at about 65°C; Stir in a homogenizer for 30 minutes, then add dopamine and polyurethane resin, and stir for 2 hours at a speed of 200r / min.

[0049] This embodiment also provides a wood coloring method, which differs from Embodiment 1 only in that: the coloring agent of this embodiment is formulated into a 4% aqueous solution, the wooden board is soaked in it for 20 hours, and then air-dried.

[0050] See the results of the wood coloring experiment figure 1 c.

Example Embodiment

[0056] Example 3

[0057] A water-based wood stain, the formula is: 10 parts of Tempo-oxidized nanocellulose (CNC), 50 parts of iron yellow, 6 parts of dopamine, 13 parts of epoxy resin, 160 parts of water.

[0058] This embodiment also provides the preparation method of the water-based wood stain, including: adding Tempo-oxidized nanocellulose (CNC) into water according to the formula and ultrasonically vibrating for 30 minutes at about 65°C; Stir in a homogenizer for 30 minutes, then add dopamine and epoxy resin, and stir for 1.5 hours at a speed of 200r / min.

[0059] This embodiment also provides a wood coloring method, and the only difference from Embodiment 1 is that the coloring agent of this embodiment is formulated into a 3% aqueous solution, and the wooden board is soaked in it for 15 hours and air-dried.

[0060] See the results of the wood coloring experiment figure 1 e.

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Abstract

The invention relates to the technical field of wood coloring, in particular to a water-borne wood colorant and a coloring method. The water-borne wood colorant comprises the following main components: pigment, dopamine, nanocellulose and water-borne polymer resin. The problems that an existing wood coloring technology has uneven wood permeability, a poor coloring effect on a wood surface and other defects are solved, the water-borne wood colorant has moderate viscosity, high adhesion, a small particle size and good dispersion effect, and can easily penetrate into wood.

Description

technical field [0001] The invention relates to the technical field of wood coloring, in particular to a water-based wood colorant and a coloring method. Background technique [0002] 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. In order to realize the efficient utilization of plantation wood, it is also necessary to improve the low-quality wood and imitate precious wood through color-matching technology, so as to improve the use value of wood and meet people's needs for wood products diversity. Adjusting the wood color can make the wood have good and designable surface properties, which can significantly improve the utilization rate. However, most of the auxiliary agents for wood dyeing are heavily polluting drugs, which will cause serious harm to the human body during processing and application. The physical pr...

Claims

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Application Information

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IPC IPC(8): B27K5/02C09D15/00
CPCB27K5/02C09D15/00
Inventor 龙玲刘如邱竑韫徐建峰
Owner RES INST OF FORESTRY NEW TECH CHINESE ACAD OF FORESTRY
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