Special veneering pressing and sticking method of melamine impregnated paper

A melamine and special-shaped technology, which is applied to chemical instruments and methods, surface covering paper, door leaves, etc., to achieve the effect of high surface hardness, good chemical resistance, and increased aesthetics

Active Publication Date: 2011-01-26
JIANGSHAN OUPAI DOOR IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

With the continuous improvement of people's economic living standards...

Method used

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  • Special veneering pressing and sticking method of melamine impregnated paper
  • Special veneering pressing and sticking method of melamine impregnated paper

Examples

Experimental program
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Effect test

Embodiment 1

[0034] like figure 1 As shown, the hard miscellaneous wood and poplar (or pine) are cut into wood chips respectively; the wood chips are softened in vacuum for 3-4 minutes at a temperature of 160-170 ° C and a pressure of 7-8 kg to obtain softened wood chips. Select the appropriate grinding disc of the corresponding tooth type of the thermal grinding machine to ensure that the diameter of the wood fiber fineness is controlled at 0.04mm, and the length of the wood fiber is 4mm; the adhesive is 200kg / m 3 , paraffin: 5kg / m 3 , softener Release agent and surface sealant for external use, dilution ratio: 95 parts of demineralized water diluted with 5 parts of softener, the amount added is about 8g / m 2 , through a continuous hot press machine to obtain softened medium density fiberboard 3; the decorative paper is impregnated with 30% of formaldehyde solution, 35% of methanol solution, 25% of melamine, 3% of edible pure ethanol with a concentration of 40-50%, and urea 1%, the mix...

Embodiment 2

[0036] like figure 1 As shown, the hard miscellaneous wood and poplar (or pine) are cut into wood chips respectively; under the condition of temperature of 160-170 ° C and pressure of 7-8 kg, the softened wood chips are obtained by vacuum softening for 3-4 minutes. Appropriate grinding discs of the corresponding tooth type of the thermal grinding machine, to ensure that the diameter of the wood fiber fineness is controlled at 0.05mm, and the length of the wood fiber is 3mm; the adhesive is 210kg / m 3 , Paraffin: 6kg / m 3 , softener Release agent and surface sealant for external use, dilution ratio: 90 parts of demineralized water diluted with 10 parts of softener, adding about 5g / m 2 , a continuous press to obtain softened MDF 3; the softened MDF 3 is softened twice using a specially prepared softener; wherein the softener (ammonia) formula is: the ammonia concentration is 7% (ammonia-containing 63%) ammonia solution, pH value: 4-5, thermal decomposition temperature of the s...

Embodiment 3

[0038] like figure 1 As shown, the hard miscellaneous wood and poplar (or pine) are respectively cut into wood chips; at a temperature of 160-170 ° C and a pressure of 7-8 kg, vacuum softening for 3-4 minutes to obtain softened wood chips; by selecting Appropriate grinding discs of the corresponding tooth type of the thermal grinding machine, to ensure that the diameter of the wood fiber fineness is controlled at 0.04mm, and the length of the wood fiber is 4mm; the adhesive is 200kg / m 3 , paraffin: 5kg / m 3 , softener Release agent and surface sealant for external use, dilution ratio: 95 parts of demineralized water diluted with 5 parts of softener, the amount added is about 8g / m 2 , a continuous press to obtain softened medium density fiberboard 3; decorative paper (gram weight is 80g / m 2 base paper) soaked with 30% formaldehyde solution, 35% methanol solution, 25% melamine, 3% edible pure ethanol with a concentration of 40-50%, 1% urea, 0.1% sodium hydroxide solution, 2.5...

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Abstract

The invention discloses a special veneering pressing and sticking method of melamine impregnated paper, which comprises the steps of: softening medium density polyethylene fibreboards, improving the formula of the melamine impregnated paper, and compression-molding by adopting a concave and convex matching mould. The method avoids the deficiencies that a traditional door sheet is not wear-resistant, is not stain-resistant, is easy to deform, crack, delaminate, burn, and mildew, and the surface of a traditional door sheet needs cumbersome processing procedures, such as many times of painting or spray painting, and the like.

Description

technical field [0001] The invention relates to a molding method of a decorative board, more specifically, to a method for pressing and pasting a special-shaped veneer of melamine-impregnated paper. Background technique [0002] Melamine (English name Melamine), molecular formula: C3N6H6, C3N3(NH2)3, molecular weight: 126.12, is an important nitrogen heterocyclic organic chemical raw material, white crystalline powder, non-toxic, tasteless, relative density is 1570kg / m 3 , under normal pressure, decomposes at 354°C, sublimation temperature is 300°C, soluble in methanol, formaldehyde, acetic acid, hot ethylene glycol, glycerin, pyridine; slightly soluble in water, ethanol; insoluble in ether, benzene and tetrachloride Carbon, the aqueous solution is weakly alkaline; melamine is weakly alkaline, and can react with various acids to form melamine salts. In strong acid or strong lye, melamine is hydrolyzed, and the amino groups are gradually replaced by hydroxyl groups to genera...

Claims

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Application Information

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IPC IPC(8): B27D1/00B27K5/06D21H27/18B32B21/02B32B21/06E06B3/70
Inventor 冯毅吴水根王忠
Owner JIANGSHAN OUPAI DOOR IND
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