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Wood Staining Methods

A dyeing method and wood technology, applied in the field of wood dyeing, can solve the problems of low color fastness, dull color, light color of wood, etc., and achieve the effects of improving dyeing efficiency, strong adsorption and fixation, and expanding the scope of application

Active Publication Date: 2021-09-28
DEHUA TB NEW DECORATION MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The invention provides a wood dyeing method, which uses a specific amine compound to pretreat the wood, can significantly improve the dyeing efficiency, and at least solves the problems of light color, dull color and color fastness of the dyed wood in the prior art. low technical issues

Method used

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  • Wood Staining Methods
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Examples

Experimental program
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Effect test

Embodiment 1

[0037] The wood used in this embodiment is the African material (AYOUS) 0.8mm veneer;

[0038] 1. Preparation of amine compounds

[0039] Control adipic acid: diethylenetriamine: the mol ratio of epichlorohydrin is 2:3:3, prepare amine compound according to the following process:

[0040] Add water and adipic acid into a three-necked flask equipped with a reflux condensing device, raise the temperature to 80°C to dissolve the adipic acid, then add diethylenetriamine dropwise, after the dropwise addition, add p-toluenesulfonic acid, and gradually raise the temperature to 160°C React for about 4 hours (basically no liquid distills out); then naturally cool the reaction system to about 120°C, dilute with water, further cool down to about 40°C, add epichlorohydrin dropwise to it, and gradually increase the temperature after the dropwise addition Heat the reaction at about 80°C for 3 hours; then add hydrochloric acid to adjust the pH to 5-6, and cool down to terminate the reaction...

Embodiment 2

[0049] The wood used in this embodiment is European oak veneer with a thickness of 1.5 mm.

[0050] Adopt the method of embodiment 1 to dye the oak veneer of the present embodiment, obtain the stained wood veneer, its dyeing situation is as follows figure 2 shown (left).

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Abstract

The invention provides a wood dyeing method, comprising: using an amine compound to pretreat the wood, and then using an acid dye to dye the pretreated wood; wherein, the amine compound is a mixture of polyamine compounds and organic carboxylic acid A product obtained by performing quaternization on the polymerized product obtained by the reaction. The dyeing method provided by the invention can significantly improve the dyeing efficiency, and improve the dyeing depth, color fastness and other qualities of the dyed wood.

Description

technical field [0001] The invention relates to the field of wood dyeing, in particular to a wood dyeing method. Background technique [0002] With the rapid development of the wood processing industry at home and abroad in recent years, the wood used for decorative panels such as oak, black walnut, and teak is decreasing day by day, and the grade of wood is getting lower and lower. High-grade veneer materials that can be directly used for decorative panels are becoming more and more Less, the price also rises, and the improvement of the decoration of low-grade wood (veneer) through wood (veneer) dyeing has been paid more and more attention by the industry in recent years. At the same time, with the rapid development of technological wood (modified veneer, recombined and beautified wood) in recent years, and the changes in the individual consumption needs of the younger generation of consumers, wood (veneer) has been dyed, while retaining the natural texture and texture. By...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27K3/08B27K3/20B27K5/02C08G69/48
CPCB27K3/08B27K3/20B27K5/02C08G69/48
Inventor 贾焕亮吴云刚彭国青陈凯陈思静杨楠
Owner DEHUA TB NEW DECORATION MATERIAL CO LTD