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A formaldehyde-free recombined decorative veneer/material with high color fastness and its manufacturing method

A technology for recombining decorative materials and manufacturing methods, applied in the field of wood processing, can solve the problems of technical wood fading, affecting decorative effects, and easy fading and discoloration, and achieve the effects of shortening dyeing time, improving efficiency, and improving dyeing efficiency

Active Publication Date: 2021-12-17
ZHEJIANG YUNFENG MOGANSHAN DECORATION BUILDING MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the storage and use of high-tech wood, when exposed to sunlight or other light sources, its color and luster will change to varying degrees, that is, it is easy to fade and change, which will affect the decorative effect.
For example, the patent 201711291995.1 "A ternary compound dye and the method of using the dye to prepare veneer with high color fastness" adopts the method of adding a light stabilizer, but the light stabilizer has a life span, and the technology wood loses protection after the life span is exceeded still fade

Method used

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  • A formaldehyde-free recombined decorative veneer/material with high color fastness and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] S1: Select Ayous for rotary cutting into 0.75mm thick veneer.

[0028] S2: Bleach the peeled veneer. The bleaching solution consists of: 8% hydrogen peroxide with a concentration of 35%, 0.5% bleaching aid sodium silicate, 0.05% bleaching penetration aid octanol polyoxyethylene ether and the balance of water, and adjust the pH to 9-12 with a 30% concentration of sodium hydroxide solution, and control the bleaching temperature at 70°C.

[0029] S3: After neutralizing the bleached veneer, drying and controlling the moisture content at 10% to 14% for use. Add water to the normal temperature and pressure dyeing vat and raise the temperature to 95°C. The water-based high light fastness dyeing solution is composed of 110g dye solution SW-4, 12g polysorbate, 17gNa 2 SO 4 Composition, preparation method: add dye liquor SW-4 and polysorbate in order by weight in a 1L water bath at 80°C, stir well for 5 minutes, and then add Na 2 SO 4 , stir well for 5 minutes. The dye liqu...

Embodiment 2

[0034] S1: Select Ayous for rotary cutting into 0.75mm thick veneer.

[0035] S2: Bleach the peeled veneer. The bleaching solution consists of: 8% hydrogen peroxide with a concentration of 35%, 0.5% bleaching aid sodium silicate, 0.05% bleaching penetration aid octanol polyoxyethylene ether and the balance of water, and adjust the pH to 9-12 with a 30% concentration of sodium hydroxide solution, and control the bleaching temperature at 70°C.

[0036] S3: After neutralizing the bleached veneer, drying and controlling the moisture content at 10% to 14% for use. Add water to the normal temperature and pressure dyeing vat and raise the temperature to 95°C. The water-based high light fastness dyeing solution is composed of 110g dye solution SW-4, 12g polysorbate, 17gNa 2 SO 4 , 20g urea, 16g LiCl; preparation method: add dye liquor SW-4 and polysorbate in order by weight in a 1L water bath at 80 ° C, and after fully stirring for 5 minutes, add Na 2 SO 4 , urea, LiCl, and fully...

Embodiment 3

[0041] S1: Select Ayous for rotary cutting into 0.75mm thick veneer.

[0042] S2: Bleach the peeled veneer. The bleaching solution consists of: 8% hydrogen peroxide with a concentration of 35%, 0.5% bleaching aid sodium silicate, 0.05% bleaching penetration aid octanol polyoxyethylene ether and the balance of water, and adjust the pH to 9-12 with a 30% concentration of sodium hydroxide solution, and control the bleaching temperature at 70°C.

[0043] S3: After neutralizing the bleached veneer, drying and controlling the moisture content at 10% to 14% for use. The water-based high light fastness dyeing solution is composed of 110g dye solution SW-4, 12g polysorbate, 17g Na 2 SO 4 , 20g urea, 16g LiCl composition, preparation method: add dye liquor SW-4 and polysorbate sequentially according to weight in a 1L water bath at 80 ° C, fully stir for 5 minutes, then add Na 2 SO 4 , urea, LiCl, and fully stir for 5 minutes. Add the dye liquor into the high pressure cylinder, imme...

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Abstract

The invention relates to a formaldehyde-free recombined decorative veneer / material with high color fastness and a manufacturing method thereof. The method comprises the following steps: cutting the log into a veneer by rotary cutting or slicing, and the thickness of the veneer is 0.6-0.8 mm; Rotary cutting / slicing veneer for bleaching treatment, determine the degree of bleaching and bleaching process according to product requirements; dry the bleached veneer, control the moisture content at 10-14%, use high-pressure cylinders for dyeing, and use water-based dyeing solution Dye solution with high light fastness; the dyed veneer is processed into a recombined decorative veneer / material through repairing, bionic tissue embryo, formaldehyde-free adhesive coating, gluing, and health preservation; the high color fastness obtained in the present invention has no Aldehyde recombined decorative veneer / material, the color fastness level reaches 4.5, and the formaldehyde emission is lower than 0.03mg / m 3 , in line with the market prospect demand.

Description

technical field [0001] The invention relates to the field of wood processing, in particular to a high color fastness formaldehyde-free reconstituted decorative veneer / wood and a manufacturing method thereof. Background technique [0002] Restructured decorative veneer / timber, also known as "technical wood", is made from the peeling (or slicing) veneer of plantation or fast-growing tree species wood as raw material, and is manufactured by veneer dyeing, lamination gluing, molding and other technologies. It is a new type of wood decoration material with natural precious tree species wood characteristics or other artistic patterns. In the production process of technical wood, the microstructure and inherent properties of wood are not damaged. Tech wood has no inherent natural defects of natural wood such as worm holes, knots, discoloration, etc. It is a decorative material with almost no defects. At the same time, its texture and color have certain regularity, so it is very go...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27K5/02B27K3/08B27K3/52B27K3/02B44C5/04
CPCB27K5/02B27K3/08B27K3/52B27K3/0207B44C5/043
Inventor 沈来斌盛娜桂成胜沈云芳宋满华施红良赵建忠嵇凯明
Owner ZHEJIANG YUNFENG MOGANSHAN DECORATION BUILDING MATERIALS CO LTD
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