CN102896674A

CN102896674A - Softening method for dyeing bamboo slicing laminted wood

Info

Publication number: CN102896674A
Application number: CN 201110209222
Authority: CN
Inventors: 钟哲科; 方崇荣; 江东校; 毛威力
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-07-25
Filing date: 2011-07-25
Publication date: 2013-01-30

Abstract

The present invention discloses a softening method for a dyeing bamboo slicing laminted wood. According to the method, a slicing laminted wood formed by carrying out compatibility and pressing on dyeing bamboo strips is soaked in an aqueous solution containing a certain amount of a softening penetrant and a colouring stabilizer, wherein the softening penetrant is a mixture of fatty alcohol polyoxyethylene ether and a potassium salt mixture, and the colouring stabilizer is a compound containing an ammonium salt; a two-stage heating process is adopted, wherein the aqueous solution is heated to a temperature of 70-80 DEG C, then thermal insulation is performed for 48-72 hours, the aqueous solution is then heated to a temperature of 105-110 DEG C, and thermal insulation is performed for 6-12 hours; and finally the treated slicing laminted wood is cooled to a temperature of 50-60 DEG C, and is taken out from a pressurizing furnace for slicing. With the softening method, the single color problem of the bamboo decoration material can be easily solved, and bamboo utilization rate and value can be increased.

Description

A kind of softening method of the bamboo slicing integrated timber that dyes

Technical field

The invention provides a kind of softening method of the bamboo slicing integrated timber that dyes, belong to materials science field.

Background technology

Along with further developing of bamboo processing industry, market is also more and more higher to the requirement of pattern, kind and the quality of Bamboo products.Because the bamboo wood color is dull, bamboo wood easily ftractures, and the bamboo wood easily defective such as rotten seriously restricts the utilization of bamboo, the demand that existing procucts far away can not satisfying the market, and many manufacturers are to the bamboo wood treatment technology, such as bamboo dyeing, the anti-cracking technology of bamboo wood etc.Because the structure of bamboo wood is anisotropic, the anatomical features at each position of bamboo wood and physical and mechanical property difference are obvious especially, particularly surf green and ring position, and quality is hard, poor permeability, the bamboo wood treatment technology is one of efficient Pinch technology that utilizes of bamboo wood all the time.

The sliced bamboo skin is first integrated bamboo clappers to be made in bamboo chip hot pressing, gluing bamboo boards well-thought-out plan side, again bamboo side is softened, slicing processing and the product that makes, it has kept the peculiar texture of bamboo wood and texture, can be used as the decorative overlay material of wood-based plate, furniture etc., this product can remedy the deficiency of precious timber resource to a certain extent, has the good market competitiveness and popularizing application prospect.But the sliced bamboo cortex component analysis from the production of domestic present existing utilization dyeing bamboo cane, also have following problem: (1) is because the bamboo wood permeance property is poor, at the bottom of the bamboo wood degree of staining, cause bamboo dyeing fixing property and color uniformity all relatively poor, unstable product quality; (2) the technologic difference of different colours dyeing, the bamboo cane mass discrepancy that causes dyeing increases, and brings certain difficulty to slicing, and it is less that the result produces sliced bamboo skin excellence rate, and utilization rate of bamboo descends, and production cost improves.Slicing bamboo wood is softening to be one of bamboo skin critical process of producing, and the quality of slicing bamboo wood softening degree directly has influence on the fineness etc. on qualification rate, product flexible toughness and the surface of product.The softening method of a kind of bamboo slicing integrated timber that dyes that this patent proposes, adopt the utilization of a certain amount of bleeding agent, fixation and the technique of heating of two-phase method, to overcome the defective that exists in the above-mentioned dyeing bamboo skin production process, improve utilization rate and the surface quality of bamboo wood, improve the bamboo wood visual effect and promote the bamboo wood added value of product.

Summary of the invention

The object of the present invention is to provide a kind of science, efficient the dye softening method of bamboo slicing integrated timber.

For achieving the above object, the present invention adopts softening bleeding agent, color-fixing agent to use the method that combines with the pressurization softening process of heating, the slicing integrated timber immersion that is about to utilize the dyeing bamboo cane to be pressed into contains in the solution of a certain amount of softening bleeding agent, color-fixing agent, the softening bleeding agent that adopts be AEO and sylvite (one or more in potassium chloride, potassium sulfate and the potassium dihydrogen sulfate) by weight 1: the mixture of the ratio of 1-2, the softening adding proportion of bleeding agent in soak is 0.04%-0.08%.For remedying the poor situation of bamboo dyeing uniformity and fixing property, add the mixture of one or more following ammonium salt-containing classes in soak: ammonium carbonate, carbonic hydroammonium, urea, ammonium chloride, the percentage by weight in its soak are 0.2-0.5%.Simultaneously, adopt the technique of heating of two-phase method, the slicing integrated timber is immersed in the liquid that is added with softening bleeding agent and color-fixing agent first, with per hour 4-8 ℃ heat to 70-80 ℃, be incubated 48-72 hour, and then with per hour 4-8 ℃ temperature progressively is elevated to 105-110 ℃, steam pressure remains between the 0.12-0.14Mpa, be incubated 6-12 hour, take out from plus-pressure furnace when the slicing integrated timber after the above-mentioned processing progressively is cooled to 50-60 ℃, for slicing.

The characteristics such as the present invention has that the color bamboo skin coloring that obtains is good, bright in colour, smooth surface, flexible toughness are good can be widely used as the fields such as building decoration material, various handicraft production, the manufacturing of high-grade floor, top-grade furniture manufacturing.

Specific implementation:

In the softening plus-pressure furnace of bamboo wood, add a certain amount of water, and add by water weight and to add respectively 0.02% AEO and 0.03% potassium chloride, in water, add again 0.3% carbonic hydroammonium, through stirring, solute is fully dissolved, then will be placed in the plus-pressure furnace with 3 layers of side pressure slicing integrated timber that the compacting of dyeing bamboo cane forms, liquid level surpasses the slicing integrated timber more than 3 centimetres.Close softening pressure stove, and with 5 ℃ rate of warming per hour, heat to 80 ℃, and be incubated 48 hours, and then with 5 ℃ speed per hour, temperature is elevated to 105 ℃, steam pressure remains on 0.12, is incubated 10 hours.At last, close warming-up device, the slicing integrated timber after the above-mentioned processing is cooled to 60 ℃, again the slicing integrated timber is taken out from plus-pressure furnace, for slicing.

Claims

1. softening method of bamboo slicing integrated timber that dyes is characterized in that: the slicing integrated timber that utilizes the dyeing bamboo cane to be pressed into is immersed in the aqueous solution that contains a certain amount of softening bleeding agent, color-fixing agent, and is softening under certain temperature, pressure.

2. a kind of softening method of the bamboo slicing integrated timber that dyes as claimed in claim 1, the softening bleeding agent that it is characterized in that soaking in the aqueous solution is by weight 1: AEO and Kalisalt mixture mixture that the ratio of 1-2 is mixed, its sylvite is one or more mixtures in following: potassium chloride, potassium sulfate and potassium dihydrogen sulfate, the softening adding proportion of bleeding agent in soak is 0.04%-0.08%.

3. a kind of softening method of the bamboo slicing integrated timber that dyes as claimed in claim 1, it is characterized in that soaking color-fixing agent in the aqueous solution and be the mixture of a kind of or a few ammonium salt-containing class in following: ammonium carbonate, carbonic hydroammonium, urea, ammonium chloride, the percentage by weight in its soak are 0.2-0.5%.

4. a kind of softening method of the bamboo slicing integrated timber that dyes as claimed in claim 1, it is characterized in that adopting the technique of heating of two-phase method, the slicing integrated timber is immersed in the liquid that is added with softening bleeding agent and color-fixing agent first, with per hour 4-8 ℃ heat to 70-80 ℃, be incubated 48-72 hour, and then with per hour 4-8 ℃ temperature is elevated to 105-110 ℃, steam pressure remains between the 0.12-0.14Mpa, be incubated 6-12 hour, from plus-pressure furnace, take out when then the slicing integrated timber after the above-mentioned processing being cooled to 50-60 ℃, for slicing.