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A method for color retention and degreasing of wood

A technology for wood and color retention, applied in the direction of wood impregnation, wood treatment, impregnated wood, etc., can solve the problems of hindering the application of pine solid wood products, dull luster, low degreasing rate, etc., to improve degreasing effect, avoid easy blackening, improve The effect of degreasing rate

Active Publication Date: 2019-01-01
安徽嘉美工艺品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main technical problem to be solved by the present invention is to provide a wood color-preserving and degreasing method for the low degreasing rate of pine wood in the current lye saponification method, which is prone to blackening and dull luster, which hinders the application of pine solid wood products. method

Method used

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  • A method for color retention and degreasing of wood

Examples

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Effect test

example 1

[0022] Soak the wood to be degreased in water for 2 hours, take it out, spray and freeze it with liquid nitrogen for 2 minutes, put the frozen wood in an oven, and dry it at 110°C for 30 minutes to obtain dry wood; put the dry wood into a blasting tank, Use a booster pump to pressurize the blasting tank until the pressure in the blasting tank reaches 0.8 MPa, keep the pressure for 3 minutes, open the exhaust valve of the blasting tank to reduce the pressure in the blasting tank to normal pressure instantly, and take out the wood, which is the pre-treatment process. Wood processing: Weigh the tea bran and put it into a ball mill jar, add zirconia ball milling beads into the ball mill jar according to the mass ratio of the ball to material at 20:1, grind for 30 minutes to obtain tea bran powder, and then mix the tea bran with a mass ratio of 1:10. Mix the bran powder and water, heat and boil for 2 hours to obtain the cooking solution; use a centrifuge to centrifuge the cooking so...

example 2

[0024] Soak the wood to be degreased in water for 1 hour, take it out, spray and freeze it with liquid nitrogen for 1 minute, put the frozen wood in an oven, and dry it at 105°C for 20 minutes to obtain dry wood; put the dry wood into a blasting tank, Use a booster pump to pressurize the blasting tank until the pressure in the blasting tank reaches 0.5 MPa, keep the pressure for 2 minutes, open the exhaust valve of the blasting tank to reduce the pressure in the blasting tank to normal pressure instantly, and take out the wood, which is the pre-treatment process. Wood processing: Weigh the tea bran and put it into a ball mill jar, add zirconia ball milling beads into the ball mill jar at a mass ratio of 20:1 to the ball mill, grind for 20 minutes to obtain tea bran powder, and then grind the tea bran at a mass ratio of 1:10. Mix the bran powder and water, heat and boil for 1 hour to obtain the cooking solution; use a centrifuge to centrifuge the cooking solution at a speed of 2...

example 3

[0026]Soak the wood to be degreased in water for 1 hour, take it out, spray and freeze it with liquid nitrogen for 1 minute, put the frozen wood in an oven, and dry it at 107°C for 25 minutes to obtain dry wood; put the dry wood into a blasting tank, Use a booster pump to pressurize the blasting tank until the pressure in the blasting tank reaches 0.7 MPa, keep the pressure for 3 minutes, open the exhaust valve of the blasting tank to reduce the pressure in the blasting tank to normal pressure instantly, and take out the wood, which is the pre-preparation process. Wood processing: Weigh the tea bran and put it into a ball mill jar, add zirconia ball milling beads into the ball mill jar at a mass ratio of 20:1 to the ball mill, grind for 25 minutes to obtain tea bran powder, and then grind the tea bran at a mass ratio of 1:10. Mix the bran powder and water, heat and boil for 1 hour to obtain the cooking solution; use a centrifuge to centrifuge the cooking solution at 2500r / min f...

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Abstract

The invention relates to a method for wood color preserving and degreasing and belongs to the technical field of wood treatment. According to the method, to-be-degreased wood is soaked with water, sprayed with liquid nitrogen, frozen and dried to obtain dry wood; the dry wood is subjected to micro-blasting to obtain pre-treated wood; tea bran is ground, mixed with water, subjected to heating boiling and centrifugal treatment, and separated to obtain upper layer liquid, the upper layer liquid is concentrated to obtain concentrated liquid, and then the concentrated liquid, a sodium bicarbonate solution, potassium permanganate and the like are evenly stirred to obtain self-prepared degreasing color preserving liquid; and then the self-prepared degreasing color preserving liquid is put into a steam generator, the pre-treated wood is treated through steaming, and wood degreasing can be finished. Wood permeability is effectively improved, the wood degreasing rate is remarkably increased, and meanwhile the good color preserving effect is achieved.

Description

technical field [0001] The invention relates to a method for wood color retention and degreasing, which belongs to the technical field of wood treatment. Background technique [0002] There are normal resin channels in the wood structure of pine, spruce, larch, douglas fir, silver fir and oil fir, which secrete resin and are rich in resin content. In the process of wood processing and utilization, high resin content affects Subsequent sawing, sanding, painting and gluing of wood, and once the ambient temperature is high, the resin will seep into the wood surface and contaminate wood products. Therefore, this type of wood needs to be degreased during processing and utilization. Then improve its processing performance and surface quality, and expand its application range. [0003] At present, the degreasing methods of various pine or fir are slightly different due to their different wood properties, fat content and inclusions, but the current wood degreasing methods and techn...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27K3/52B27K5/00
CPCB27K3/52B27K5/0005B27K5/007B27K5/0085
Inventor 钟雄薛焱璟林茂兰
Owner 安徽嘉美工艺品有限公司
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