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Formaldehyde-free decorative board and preparation method thereof

A decorative board and formaldehyde technology, applied in the field of wood processing, can solve the problems of complicated preparation process, pollution, and unresolved formaldehyde, etc., and achieve the effect of simple process and low production cost

Inactive Publication Date: 2009-10-14
深圳伟伦嘉禾环保装饰材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the decorative board uses plant fiber powder as the main raw material instead of wood boards, this patent does not solve the problem of formaldehyde pollution commonly found in traditional decorative boards (with solid wood boards as the main component)
[0006] Authorized announcement number is that the Chinese invention patent of CN 1164420C discloses a kind of environment-friendly composite decorative board, and this composite decorative board adopts nontoxic white glue as adhesive, and its defect is that this composite decorative board still contains a certain amount of formaldehyde (formaldehyde content reach 0.81mg / L), in addition, this decorative board also has problems such as high preparation cost and complicated preparation process, which need to be overcome

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1 Preparation of formaldehyde-free decorative board

[0029] The number of layers of solid wood veneer is 3 layers, and the polyethylene plastic film is evenly spread between each two adjacent solid wood veneers. The amount of polyethylene plastic film is 170 g / m 2 ;Adopt plate press (Shandong Linyi Woodworking Machinery Factory production) to carry out lamination, first be that 600 tons of pressure, the temperature is hot-pressing 6 minutes under the condition of 120 ℃, then is 600 tons of pressure, and the temperature is cold under the condition of 30 ℃ Press for 7 minutes, that is.

[0030] After testing, the decorative board prepared in this example did not crack when soaked in hot water at 75° C. for 30 hours, and then dried continuously for 3.5 hours without cracking.

[0031] Tested according to national testing standards for multilayer composite wood boards, all performances of the decorative boards prepared in this embodiment are in line with nation...

Embodiment 2

[0032] Embodiment 2 Preparation of formaldehyde-free decorative board

[0033] The number of layers of the solid wood veneer is 6 layers, and the polyvinyl chloride plastic film is evenly spread between each two adjacent solid wood veneers, and the dosage of the polyvinyl chloride plastic film is 100 g / m 2 ;Adopt a press machine (Shandong Linyi Woodworking Machinery Factory) to carry out the pressing, first press at a pressure of 700 tons and a temperature of 150°C for 15 minutes, and then cold press at a pressure of 700 tons and a temperature of minus 20°C Press for 30 minutes, that is.

[0034] After testing, the decorative board prepared in this example did not crack when soaked in hot water at 68° C. for 30 hours, and then dried for 3 hours without cracking.

[0035] Tested according to national testing standards for multilayer composite wood boards, all performances of the decorative boards prepared in this embodiment are in line with national standards.

Embodiment 3

[0036] Embodiment 3 Preparation of formaldehyde-free decorative board

[0037] The number of layers of solid wood veneer is 11 layers, and the polypropylene plastic film is evenly spread between each two adjacent solid wood veneers. The amount of polypropylene plastic film is 160 g / m 2 ;Using a plate press (Shandong Linyi Woodworking Machinery Factory) for pressing, first hot pressing at a pressure of 400 tons and a temperature of 140°C for 30 minutes, and then cold pressing at a pressure of 450 tons and a temperature of 40°C 35 minutes, that is.

[0038] After testing, the decorative board prepared in this example did not crack when soaked in hot water at 70° C. for 28 hours, and then dried for 3.5 hours without cracking.

[0039] Tested according to national testing standards for multilayer composite wood boards, all performances of the decorative boards prepared in this embodiment are in line with national standards.

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PUM

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Abstract

The invention discloses a formaldehyde-free decorative board and a preparation method thereof. The decorative board is formed by overlaying multiple layers of wood veneers with adhesive, wherein the adhesive is plastic film. The preparation method is as follows: the plastic film is evenly laid between every two adjacent wood veneers, and the use level of the plastic membranes is over 100g / m ; a veneer press is used for pressing, with the pressure over 100 tons, the veneer press performs heat pressing firstly and cold pressing later, the temperature of heat pressing is over 100 DEG C and the temperature of the cold pressing is 20 DEG C to 100 DEG C The decorative board contains no formaldehyde, causes no poison or pollution on human body and surrounding environment and truly realizes the environment protection. In addition, the invention adopts the cheap plastic film as the adhesive, the production cost is low, the technology is simple, and qualitative indexes of the product completely satisfy the national standards.

Description

technical field [0001] The invention relates to a decorative board used in decoration or decoration engineering, in particular to a formaldehyde-free decorative board and a preparation method thereof, belonging to the field of wood processing. Background technique [0002] Decorative board, commonly known as panel, is a decorative board with single-sided or double-sided decorative effect made by precision-slicing solid wood board into thin veneer with a thickness of more than 0.1mm, using plywood as the base material, and gluing process. [0003] Formaldehyde has strong adhesion, and also has the function of strengthening the hardness of the board and preventing insects and corrosion. Therefore, most of the existing board adhesives are resin adhesives with formaldehyde as the main component. , These adhesives are decomposed in large quantities, and free formaldehyde will travel around the room. The remaining formaldehyde in the board that has not participated in the chemical...

Claims

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Application Information

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IPC IPC(8): B27D1/04B32B21/13B27D1/08B27D3/00C09J7/00C09J123/06C09J123/12C09J127/06
Inventor 戴武兵
Owner 深圳伟伦嘉禾环保装饰材料有限公司
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