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A kind of discoloration agent and discoloration method of wood chemical discoloration induced by copper ion

A chemical discoloration and discoloration agent technology, applied in the field of wood manufacturing, can solve the problems of distorted wood color, reducing the clarity of wood texture, and too consistent color

Active Publication Date: 2020-12-11
ZHEJIANG FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most of the traditional methods add dyes to the paint, which reduces the clarity of the wood texture, the color of the wood itself is distorted, the color is too consistent, and the naturalness of the wood is also greatly reduced

Method used

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  • A kind of discoloration agent and discoloration method of wood chemical discoloration induced by copper ion
  • A kind of discoloration agent and discoloration method of wood chemical discoloration induced by copper ion
  • A kind of discoloration agent and discoloration method of wood chemical discoloration induced by copper ion

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Effect test

Embodiment 1

[0036] Embodiment 1: a kind of discoloration agent and discoloration method thereof of wood chemical discoloration induced by copper ion:

[0037] Make the wood chemical discoloration agent with the raw materials of following weight ratio, mix and stir evenly and make discoloration agent;

[0038] Copper chloride 10g, cetylpyridinium bromide 1g,

[0039] Sodium alkylsulfonate 10g, water 800g.

[0040] Utilize above-mentioned wood chemical discoloration agent to carry out wood chemical discoloration to the wood veneer of white oak material, and carry out according to the following steps:

[0041] 1. The wood veneer is dried until the water content in the wood veneer is 9%;

[0042] 2. Apply the discoloration agent evenly on the wood veneer by wiping, and the coating amount is 30g / m 2 After uniform coating, put it in a vacuum drying oven for 25 seconds at 55°C to complete the wood discoloration.

Embodiment 2

[0043] Embodiment 2: a kind of discoloration agent and discoloration method thereof of copper ion-induced wood chemical discoloration:

[0044] Make the wood chemical discoloration agent with the raw materials of following weight ratio, mix and stir evenly and make discoloration agent;

[0045] Cupric chloride 20g, cetylpyridinium chloride 1g,

[0046] Phenyl salicylate 1g, Alkylphenol polyoxyethylene ether 60g,

[0047] Water 910g.

[0048] Utilize above-mentioned wood chemical discoloration agent to carry out wood chemical discoloration to the wood veneer of white oak material, and carry out according to the following steps:

[0049] 1. Drying the wood veneer until the water content in the wood veneer is 10%;

[0050] 2. Apply the discoloration agent evenly on the wood veneer by wiping, and the coating amount is 35g / m 2 ,After uniform coating, place it in a vacuum drying oven at 60°C for 30 seconds to complete the wood discoloration.

Embodiment 3

[0051] Embodiment 3: a kind of discoloration agent and discoloration method thereof of copper ion induced wood chemical discoloration:

[0052] Make the wood chemical discoloration agent with the raw materials of following weight ratio, mix and stir evenly and make discoloration agent;

[0053] Cupric chloride 50g, cetylpyridinium chloride 2.5g,

[0054] Phenyl salicylate 2.5g, sodium lauryl sulfate 100g,

[0055] 900g of water.

[0056] Utilize above-mentioned wood chemical discoloration agent to carry out wood chemical discoloration to the wood veneer of white oak material, and carry out according to the following steps:

[0057] 1. Place the wood veneer for drying treatment until the water content in the wood veneer is 10%;

[0058] 2. Apply the discoloration agent evenly on the wood veneer by wiping, and the coating amount is 35g / m 2 ,After uniform coating, place it in a vacuum drying oven for quick drying at 65°C for 35 seconds to complete the wood discoloration.

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Abstract

The invention discloses a color-changing agent for inducing chemical discoloration of wood by copper ions and a color-changing method thereof. The color-changing agent comprises the following components in parts by mass, 10 to 50 parts of copper chloride, 1 to 5 parts of a fixing agent, 10 to 100 parts of a surfactant, and 800 to 950 parts of water; and the color-changing agent is applied to a wood single board and then dried to complete the discoloration of the wood. The method utilizes the color-changing agent containing copper chloride to induce a chemical discoloration reaction of molecules in the wood, and the color penetration degree of the wood is high after discoloration, the colors displayed after chemical discoloration are naturally beautiful, the texture is clearer, and the layering is stronger. In addition, the method also has the characteristics that the color-changing method is simple in operation, and the processing process is more environmentally friendly.

Description

technical field [0001] The invention relates to a color-changing agent for chemically discoloring wood induced by copper ions and a color-changing method thereof, belonging to the field of wood manufacturing. Background technique [0002] There is a serious shortage of timber resources in my country, especially natural precious hard broad-leaved timber, and the price continues to rise. In order to maximize the economic added value of timber, it has become the main trend of development to use timber veneers to decorate the surface of wooden products on a large scale. , so that the wood industry has an increasing demand for wood veneers. For this reason, my country imports a large amount of precious hard broad-leaved wood from Southeast Asia and Africa. How to increase the added value of these precious wood veneers and enrich the color of wood veneers is an important problem worth solving. [0003] Most of the traditional methods are to add dyes to the paint, which reduces the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27K3/52B27K5/02
CPCB27K3/52B27K5/02
Inventor 孙伟圣孙芳利曹惠敏金春德
Owner ZHEJIANG FORESTRY UNIVERSITY
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