Method for processing and manufacturing environmentally friendly aggrandizement wood floor by vacuum ammonia

An environmentally friendly technology for laminate flooring, applied in the jointing of wooden veneers, chemical instruments and methods, wood treatment, etc., can solve problems such as technical defects and application restrictions

Inactive Publication Date: 2009-11-25
湖南康派木业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In addition, GB/T18883-2002 "Indoor Air Quality Standard" clearly limits the indoor air ammonia value to ≤0.20mg/m 3 Therefore, no matter what kind of vacuum ammonia method to degrade formaldehyde in wood-based panels, if there is no description of residual ammonia in the panel, then this method is technically flawed and will inevitably be limited in application.

Method used

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  • Method for processing and manufacturing environmentally friendly aggrandizement wood floor by vacuum ammonia
  • Method for processing and manufacturing environmentally friendly aggrandizement wood floor by vacuum ammonia
  • Method for processing and manufacturing environmentally friendly aggrandizement wood floor by vacuum ammonia

Examples

Experimental program
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Effect test

Embodiment 1

[0049]A batch of E with a formaldehyde emission of 24.9mg / 100g 2 The first-grade floor base material is installed with a grid frame with fiberboard, put it into a closed vacuum box, turn on the vacuum pump to make the vacuum degree in the box reach -0.06MPa, and then feed the unit plate consumption of 1.42kg / m into the box 3 When the liquid ammonia is vaporized and completely absorbed in the fiberboard, release the vacuum, open the box door, take out the board with an ammonia content of 14.8mg / 100g, and then mix impregnated wear-resistant paper, decorative paper, and balance paper with it Assemble the billet, heat press it in a press with a temperature of 195°C and a pressure of 7.5MPa for 40 seconds, cut the formed board into semi-finished floor products of a certain specification, and make it through health balance, slotting, wax sealing, and packaging. Environmentally friendly laminate flooring with formaldehyde emission perforation extraction value of 2.8mg / 100g, 40L dryer...

Embodiment 2

[0051] A batch of E with a formaldehyde emission of 17.8mg / 100g 2 The first-grade floor base material is installed with a grid frame with fiberboard, put it into a closed vacuum box, turn on the vacuum pump to make the vacuum degree in the box reach -0.07MPa, and then feed the unit plate consumption of 0.96kg / m 3 When the liquid ammonia is gasified and completely absorbed in the fiberboard, release the vacuum, open the box door, take out the board with an ammonia content of 10.7mg / 100g, and then mix impregnated wear-resistant paper, decorative paper, and balance paper with it Assemble the billets, heat press them in a press with a temperature of 190°C and a pressure of 5.0MPa for 35 seconds, cut the formed boards into semi-finished floor products of certain specifications, and make them through health balancing, slotting, wax sealing, and packaging. Environmentally friendly laminate flooring with formaldehyde emission perforation extraction value of 2.5mg / 100g, 40L dryer value...

Embodiment 3

[0053] A batch of E with a formaldehyde emission of 9.8mg / 100g 2 The first-grade floor base material is installed with a grid frame with fiberboard, put it into a closed vacuum box, turn on the vacuum pump to make the vacuum degree in the box reach -0.08MPa, and then pass it into the unit plate with a consumption of 0.67kg / m 3 When the liquid ammonia is vaporized and completely absorbed in the fiberboard, release the vacuum, open the box door, take out the board with an ammonia content of 5.1mg / 100g, and then put impregnated wear-resistant paper, decorative paper, and balance paper with it Assemble the billet, hot press in a press with a temperature of 185°C and a pressure of 2.5MPa for 30 seconds, cut the formed board into semi-finished floor products of a certain specification, and make it through health balancing, slotting, wax sealing, and packaging. Environmentally friendly laminate flooring with formaldehyde emission perforation extraction value of 2.0mg / 100g, 40L dryer ...

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Abstract

A method for processing and manufacturing environmentally friendly aggrandizement wood floor by vacuum ammonia comprises following steps: putting E2 level floor into a vacuum case, generating -0.06 to -0.08 MPa in the case; applying liquid ammonia whose unit plate consumes ammonia is 0.67-1.43 kg/m3; after the liquid ammonia is gasified and completely absorbed in a fiber plate, releasing the vacuum; fetching the plate with ammonia content is 5-15 mg/100g; assembling the plate, a dipped abrasion-resistant paper , a dipped decorative paper and a dipped balance paper, hot-pressing in a press; performing nourishing, balance, chase-mortising, sealing wax, packaging to the formed plate and the semi-finished product of floor which is cut into a certain scale, so as to manufacture the environmentally friendly aggrandizement wood floor. This method has the advantages of good effect of aldehyde reduction, simple technique, convenient operation, high production efficiency, low cost, pollution free and so on. This invention has remarkable economic benefit, social benefit and environmental benefit when applied in the manufacturing industry of the aggrandizement wood floor and the resin impregnated paper overlaid wood-based panel.

Description

technical field [0001] The invention relates to a method for manufacturing environment-friendly reinforced wood flooring by using vacuum ammonia treatment technology. Background technique [0002] At present, most of the environmental performance of laminate flooring that dominates the market can only reach E 1 Level, E at the domestic leading level 0 Grade laminate flooring is less common. The reason is that urea-formaldehyde adhesives are commonly used in the manufacturing process of floor substrates. [0003] There are two ways of free formaldehyde in wood-based panels: one is caused by the incomplete reaction and reversibility of the adhesive during synthesis, and it belongs to the free formaldehyde of the monomer; the other is cured urea-formaldehyde resin. It is caused by the decomposition of hydroxymethyl and methyl ether bonds, and belongs to the formaldehyde that exists in the compound decomposition formula. The method of reducing free formaldehyde in wood-based...

Claims

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Application Information

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IPC IPC(8): B27M3/04B27K5/00B27D1/08B32B21/06
Inventor 符兴义杜少波
Owner 湖南康派木业有限公司
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