Teak discoloration treatment method

A treatment method, teak technology, applied in the field of teak discoloration treatment, can solve the problems of low efficiency and long time, achieve uniform discoloration effect, improve speed and effect, and shorten treatment time

Inactive Publication Date: 2017-12-15
安徽三和工艺品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing teak discoloration methods generally use sunlight, but this method is easily limited by the site and weather, and it takes a long time to pass sunlight, and is subject to weather changes. Secondary processing, the whole process is less efficient

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A teak discoloration treatment method, comprising the following steps:

[0018] (1) Surface modification: under the catalyst of n-butyltin dilaurate, add cetyl alcohol solution in xylene dropwise in 4, 4' diphenylmethane diisocyanate at 52°C under slow stirring, in which 4, 4 'The molar ratio of diphenylmethane diisocyanate to cetyl alcohol is 1:1, and the mass ratio of cetyl alcohol to xylene in the xylene solution of cetyl alcohol is 10.5:100, then stir at constant temperature for 2 hours, and then add di Toluene solution with 0.12% sulfonyloxyketone, stirred evenly, to obtain the modified solution containing isocyanate groups, adding teak wood to the modified solution containing isocyanate groups and soaking for 40min, and then taking it out;

[0019] (2) Low-temperature plasma treatment: The teak treated in step (1) is subjected to low-temperature plasma treatment in the form of glow discharge. The treatment gas is argon. The surface is cleaned and dried;

[0020]...

Embodiment 2

[0028] A teak discoloration treatment method, comprising the following steps:

[0029] (1) Surface modification: under the catalyst of n-butyltin dilaurate, add cetyl alcohol solution in xylene dropwise in 4, 4' diphenylmethane diisocyanate at 52°C under slow stirring, in which 4, 4 'The molar ratio of diphenylmethane diisocyanate to cetyl alcohol is 1:1, and the mass ratio of cetyl alcohol to xylene in the xylene solution of cetyl alcohol is 10.5:100, then stir at constant temperature for 2 hours, and then add di Toluene solution with 0.12% sulfonyloxyketone, stirred evenly, to obtain the modified solution containing isocyanate groups, adding teak wood to the modified solution containing isocyanate groups and soaking for 40min, and then taking it out;

[0030] (2) Low-temperature plasma treatment: The teak treated in step (1) is subjected to low-temperature plasma treatment in the form of glow discharge. The surface is cleaned and dried;

[0031] (3) Illumination treatment:...

Embodiment 3

[0039] A teak discoloration treatment method, comprising the following steps:

[0040] (1) Surface modification: under the catalyst of n-butyltin dilaurate, add cetyl alcohol solution in xylene dropwise in 4, 4' diphenylmethane diisocyanate at 52°C under slow stirring, in which 4, 4 'The molar ratio of diphenylmethane diisocyanate to cetyl alcohol is 1:1, and the mass ratio of cetyl alcohol to xylene in the xylene solution of cetyl alcohol is 10.5:100, then stir at constant temperature for 2 hours, and then add di Toluene solution with 0.12% sulfonyloxyketone, stirred evenly, to obtain the modified solution containing isocyanate groups, adding teak wood to the modified solution containing isocyanate groups and soaking for 40min, and then taking it out;

[0041] (2) Low-temperature plasma treatment: The teak treated in step (1) is subjected to low-temperature plasma treatment by glow discharge mode, the treatment gas is argon, and the treatment process conditions are: pressure ...

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PUM

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Abstract

The invention discloses a teak discoloration treatment method, and relates to the technical field of wood treatment. The treatment method comprises the steps: (1) surface modification; (2) low-temperature plasma treatment; and (3) light treatment; according to the treatment method disclosed by the invention, teak is soaked in an isocyanato modified solution for treatment, so that auxochromes, such as carbon base, vinyl, methoxyl and carboxyl, in chromophoric groups of the teak surface are effectively reacted physically, and precipitation pigments of the wood surface can be dissolved to a certain extent; and at the same time, black streaks and spots can be removed effectively through active groups in the isocyanato modified solution, and the original color of the wood is diluted.

Description

technical field [0001] The invention belongs to the technical field of wood treatment, and in particular relates to a teak discoloration treatment method. Background technique [0002] Teak, also known as annatto, purple teak, blood tree, etc., is a large deciduous or semi-deciduous tree with a height of 40-50 meters, a breast diameter of 2-2.5 meters, and a straight stem. Bark brown or gray, branches quadrangular, covered with stellate hairs. The leaves are opposite, very large, ovate or elliptic, and the back is densely covered with grayish-yellow stellate hairs. The panicles are broad and large, blooming in autumn, the flowers are white and fragrant. Teak is a tropical tree species that requires high temperature. Its vertical distribution is mostly found in low mountains, hills and plains below 700-800 meters above sea level. It is a material for making high-end furniture floors and indoor and outdoor decorations. Existing teak discoloration methods generally use sunli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K3/02B27K3/50B27K5/00B27K5/04B27K3/36B27K5/02
CPCB27K3/02B27K3/36B27K3/50B27K5/00B27K5/002B27K5/02B27K5/04B27K2240/15
Inventor 徐治合徐蓝天徐艳云
Owner 安徽三和工艺品有限公司
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