CN101745955A

CN101745955A - Novel method for manufacturing artificial veneer

Info

Publication number: CN101745955A
Application number: CN200810209610A
Authority: CN
Inventors: 曹龙; 郭明辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-12-04
Filing date: 2008-12-04
Publication date: 2010-06-23

Abstract

The invention relates to a novel method for manufacturing artificial veneer, which mainly utilizes a planted-forest cotton-wood veneer with the thickness of 0.2 mm and a birch veneer with the thickness of 0.1 mm to produce an artificial veneer. The manufacturing process is mainly divided into a color handling part and a gluing slicing part. The color handling part is divided into a dyeing step and an induced discoloration step. Environment-friendly active dye is selected for the dyeing, and the cotton-wood veneer is dyed through the dipping and diffusion method to obtain the best dyeing technology. A Lab computer color-matching system is used for simulating the color of the valuable timber so as to perform the simulation dyeing. Ultraviolet light is used for radiating the birch veneer so as to adjust the distribution and quantity of different functional groups in the timber such as the carbonyl group, phenol hydroxyl and quinoid structure, so the color of the timer can be homogenized so as to adjust the color of the timber. The dyed cotton-wood veneer and the induced discolored birch veneer are alternatively assembled and pressed and glued through Lauxite with appropriate viscosity according to the diagram. The glued veneer is sliced according to different patterns and the requirement of designed textures as O in figure 2 to manufacture the artificial veneer.

Description

A kind of novel method for manufacturing artificial veneer

Background technology

Along with China's rapid economy development, the raising of living standards of the people, the demand that people decorate timber is increasing.Timber has magnificent color and graceful decorative pattern, not only can give cosy sensation, and mood that can the mediator, and body and mind is loosened.

Yet the forest tree resource of China is very limited, in particular for the precious broad leaf tree material of the big footpath level greater amount dependence on import of decorating, along with the difficulty of import is also increasing, the imbalance between supply and demand of timber increasingly sharpens, and can not satisfy the solid demand growing to timber that China's rapid economic development is brought far away.China still has a large amount of artificial forest woods to be not fully utilized on the other hand, and making scientific and technological wood is one of main method of alleviating this contradiction.

Science and technology wood, be to utilize bionics principle, utilize common tree lumber to make veneer through rotary-cut (or slicing), dye handle after, after the computer simulation design, the lamination glue laminated becomes flitch, again through slicing according to the textures of natural famous and precious seeds and color and luster, the slim ornament materials of imitative rare tree timber color and luster, texture structure and the various decorative patterns of making is novel concept decoration materials of a kind of imitative various natural precious timbers.

Patent content

This patent is a kind of novel manufacturing process, is mainly used in the making of science and technology wood, and its manufacture process is mainly divided two parts:

One, the color treatments of artificial forest wood veneer

Employed in this patent mainly is artificial forest poplar and birch veneer, the thick 0.2mm of board using poplar board, the thick 0.1mm of birch veneer.

People in this patent establishes processing method and divides two kinds: dye and bring out variable color

1, dyeing

Select environment-friendly active dye for use, the method by dipping diffusion is to board using poplar board processings of dyeing, and optimization draws optimum dyeing technology.Utilize Lab computer for colouring system, the color of imitation precious timber is carried out emulation dyeing.

The selected reactive dye of this patent have that price is low, chromatogram is complete, the source is wide, permeability and chemical stability is good, the dyeing characteristic of simple, there are one (or a plurality of) to form covalently bound active group in its molecule with cellulose, hemicellulose reaction, can form covalent bond with the hydroxyl of timber under certain conditions and anchor on the timber, thereby its look firmness is much higher than other dyestuffs.Reactive dye still are a kind of feature of environmental protection dyestuff simultaneously, all do not have reactive dye in the forbidding dyestuff list of various countries.

Late wood's dyeing that the main practical dyeing of this patent comes the emulation precious timber.Because most of precious timber late wood's color is all darker, be easy to use dyeing to carry out analog simulation, darker color can not produce bigger change because of the nuance of dyeing yet simultaneously, is fit to the production reality with factory.

2, bring out variable color

Use ultraviolet light that birch veneer is shone, adjust the distribution and the quantity that contain various functional groups in the timber,, make the color homogenising of timber, reach the purpose of adjusting the timber wood color as carbonyl, phenol hydroxyl and quinoid structure.

The method of bringing out variable color that this patent is selected has simple, the convenience operation of equipment.Use ultraviolet light that timber is brought out variable color and can not make timber produce rotten rotten infringement, can not reduce the strength grade of timber, also do not need that timber is carried out drying simultaneously and handle, reduced production cost.

This patent uses and brings out the color that the timber early wood is copied in variable color.Because the material of birch veneer is better relatively, and thinner thickness, ultraviolet light can be penetrated make it to bring out variable color.The variable color of bringing out of ultraviolet light simultaneously mainly makes birch veneer to pale yellow and bright yellow development, can be good at simulating the early wood color of imitated precious timber.

Two, the assembly of veneer gummed and slicing

By shown in Figure 1, intersect assembly with the board using poplar board of dyeing and birch veneer respectively through bringing out variable color, the Lauxite of use modest viscosity, moulded glued by carrying out among the figure.In the gummed process, note the release of stress, can suitably carry out repeatedly glue laminated.

The scientific and technological flitch (as Fig. 2) that gummed is good is according to the difference of flower shape and the needs of design texture, being parallel to place, the highest summit of arc tangential direction becomes angled (0 °≤α＜90 °) sawing to form with direction of wooden fibers, the saw controlling angle is big, then the bar number of flat grain is many, flower shape is more roomy, the bar number of the little then flat grain of angle is few, and flower shape is longer and narrower.Its sawing direction is shown in O among Fig. 2.Texture on the flitch slicing face is the flat grain that designs in advance, so production firm can carry out the design of slicing direction voluntarily according to the design decorative pattern.

Fig. 1 is artificial veneer production structure figure, and Fig. 2 is an artificial veneer slicing schematic diagram

Claims

1. novel method for manufacturing artificial veneer, its manufacture process mainly are divided into color treatments and gummed slicing two parts.Color treatments is divided into dyeing and brings out variable color.Environment-friendly active dye is selected in dyeing for use, and the method by the dipping diffusion is to board using poplar board processings of dyeing, and the color of imitating precious timber dyes.Bring out variable color and use ultraviolet light that birch veneer is shone, adjust the distribution and the quantity that contain various functional groups in the timber, reach the purpose of adjusting the timber wood color.Board using poplar board and the birch veneer through bringing out variable color with dyeing intersect assembly, use the Lauxite of modest viscosity to carry out moulded glued.According to the difference of flower shape and the needs of design texture, carry out slicing and make artificial veneer.

2. wood stain according to claim 1, it is characterized in that environment-friendly active dye, have that price is low, chromatogram is complete, the source is wide, permeability and chemical stability is good, the dyeing characteristic of simple, utilizes Lab computer for colouring system, the color of imitation precious timber.Bring out color changing method and also have simple, the convenience operation of equipment.

3. want art 1 described timber adhesive according to right, should use the Lauxite of modest viscosity.In the gummed process, note the release of stress, can suitably carry out repeatedly glue laminated.