CN1250711A - Allochromatic antiseptic technique for wood - Google Patents

Abstract

The present invention is relating to a wood processing treatment process in wood processing industry, and includes the following steps: adding clear water in preservation tank, injecting a certain quantity of mixture of industrial salt, caustic soda and soda ash and direct dye to prepare aqueous solution, then placing the timber to be coloured in the solution, soaking for 24 hr. at normal temp., taking out and drying. Said invention can be extensively used in wood processing treatment industry.

Description

A kind of sapstain aseptic technic

A kind of sapstain aseptic technic of the present invention, the timber method is handled in a kind of processing that relates in the wood working industry.

At present, on the timber processing cloth both domestic and external field, no matter be stain for wood or wood preservation, all rest on the treatment process of timber top layer, the common wealth furniture desire is selected yellow, and promptly at wood surface colored yellow paint, or elder generation's yellow colouration on wood surface is painted again, both change the timber color, also played the wood preservation effect; This traditional diamond-making technique cost height, the tired lock of operation, the fragile original appearance of exposing.

The objective of the invention is problem at above-mentioned traditional converted timber existence, invented a kind of new method to art material processing, it is that timber is immersed in the special solvent, soak and finished the processing treatment process in 24 hours, thoroughly changed the weak point that the painted processing of wood surface exists, method is simple, and quality is better.

A kind of sapstain aseptic technic adopts in the anticorrosion groove, adds quantitative industrial salt (NaCl), industrial caustic soda (NaOH) and soda ash (Na ₂CO ₃) the aqueous solution made of mixed material, add an amount of direct dyes again and be mixed with colored solution, timber is immersed in the colored solution, through 24 hours immersion, take out timber stoving, it is characterized in that:

A) water: salt=1000: (10～20);

B) caustic soda: soda ash=(65～70): (30～35);

C) water: (caustic soda+soda ash)=(60～80): (30～40);

D) direct dyes consumption: hard wood is 1～1.2Kg/m for every cubic metre ³, soft timber is 0.6～0.8Kg/m for every cubic metre ³

E) operate under the normal temperature, optimum temperature is (20～35) ℃;

F) before timber soaks, must be through super-dry and cleaning treatment, the variable color timber after the immersion treatment also should carry out drying and handle.

Good effect of the present invention is easy to operate, and the sapstain cycle is short, and with timber japanning, brush oil phase ratio, efficient increases substantially; Especially low-grade wood can be processed into and senior timber like the high-quality wood type, its wood-based product as the worker be worth double at double; And be that low-grade timber such as yule logs, culled wood have been opened up new application approach.

Embodiment 1

At first, in the anti-rot plastic immersion trough, inject clear water 1.5T, weighing industrial salt (NaCl) 23Kg, industrial caustic soda (NaOH) and soda ash (Na again ₂CO ₃) each 0.5 and 0.25T, and successively drop into and make the aqueous solution in the immersion trough; Then that weighing is intact direct dyes, be direct blue 0.8Kg and directly black 0.2Kg, in the input immersion trough, after stirring, drying and 1 cubic metre of hard pear wood cleaning up are dropped in the immersion trough, at normal temperatures, after soaking in 24 hours, take out drying, promptly finish sapstain, the pear wood of handling through the present invention promptly becomes the pitch-black ebony of mixing the spurious with the genuine.The purpose that adds industrial salt (NaCl) is to improve the antiseptic property that improves timber; Caustic soda (NaOH) and soda ash (Na ₂CO ₃) effect be to promote timber painted, improve the firm degree after the wooden variable color.Treated timber is crossed water again, or is soaked in water and does not also fade.

Embodiment 2

Will be in the immersion trough inject clear water 1.0T, add 15Kg salt, add caustic soda and soda ash 0.5T again, wherein caustic soda and soda ash are respectively 0.35 and 0.15T; In the alkaline solution of having prepared, add directly red again and direct black dyes each 0.2 and 0.1T, after stirring, drying and the soft timber Korean pine material 0.5m that cleans up again ³, drop in the immersion trough, under 30 ℃ room temperature condition, after soaking in 24 hours, take out the back drying, stand-by.Treated intact Korean pine color has become the color of similar redwood.Even collision is exposed inner wooden, color is still identical with surface colour.If need the variable color of shallow top layer, as long as strict control soak time also can reach promising result.Different colours according to the direct dyes that drops into can make log scale become different colour, and colour-fast, variable color.Result of the test shows: color fastness and can reach more than 10 years.

Claims (1)

1. a sapstain aseptic technic adopts in the anticorrosion groove, adds quantitative industrial salt (NaCl), industrial caustic soda (NaOH) and soda ash (Na ₂CO ₃) the aqueous solution made of mixed material, add an amount of direct dyes again and be mixed with colored solvent, timber is immersed in the colored solvent, through 24 hours immersion, take out timber stoving, it is characterized in that:

A) water: salt=1000: (10～20);

B) caustic soda: soda ash=(65～70): (30～35);

C) water: (caustic soda+soda ash)=(60～80): (30～40);

D) direct dyes consumption: hard wood is 1～1.2Kg/m for every cubic metre ³, soft timber is 0.6～0.8Kg/m for every cubic metre ³

E) operate under the normal temperature, optimum temperature is (20～35) ℃;

F) before timber soaks, must be through super-dry and cleaning treatment, the variable color timber after the immersion treatment also should carry out drying and handle.