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Immersion non-woven fabrics and method for producing artificial boards by coating films

A non-woven, man-made panel technology, used in textiles and papermaking, wood veneer bonding, manufacturing tools, etc., can solve the problems of limiting the number and type of veneer wood, different densities, and small widths, to avoid surface Over-mold layering, balanced temperature and heat conduction, and rich surface color effects

Inactive Publication Date: 2009-12-02
邱天祥
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the continuous felling of natural high-quality large-diameter timber has led to the depletion of unrich forest resources, especially the destruction of rare tree species
The use of artificially cultivated fast-growing wood instead of veneer limits the number and types of veneer wood used for surface decoration; moreover, because the veneer processed by fast-growing wood has small format, many scars, and different densities of various fast-growing wood, The mold-coated wood-based panels produced by impregnated paper veneer substrate boards are prone to cracks, peeling, and mold-coated layers falling off.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Select quantitative as 150g / m 2 The non-woven fabric with a thickness of 1.5mm is immersed in the alcohol-soluble phenolic resin glue solution for 50 seconds. After drying in a drier, the drying temperature is controlled at 70°C to make an impregnated non-woven fabric. The resin content is 30%, volatile matter content 8.5%, pre-cured degree 32%. Sanding the bamboo-wood composite directional structure plywood, adjusting the thickness of the base plate, and removing the surface pre-cured layer at the same time, so as not to affect the surface bonding strength of the product. After passing this process, the thickness deviation of the base plate is not greater than ±0.2mm. Afterwards, spread the impregnated non-woven fabric evenly on the surface of the sanded wood-based panel substrate, and heat-press twice with a hot press at a temperature of 130°C for 8 minutes and a pressure of 0.8 MPa.

[0014] After hot-pressing the board, the board is stored for more than 24 hours in...

Embodiment 2

[0016] Select the quantitative as 500g / m 2 The non-woven fabric with a thickness of 3.0mm is immersed in the alcohol-soluble polyurethane glue solution for 60 seconds, and is dried in a drier, and the drying temperature is controlled at 80°C to make an impregnated non-woven fabric with a resin content of 36 %, volatile matter content 8.5%, pre-curing degree 45%. Sand the car board, adjust the thickness of the substrate board, and remove the surface pre-cured layer at the same time, so as not to affect the surface bonding strength of the product. After this process, the thickness deviation of the substrate board is not greater than ±0.2mm. Afterwards, spread the impregnated non-woven fabric evenly on the surface of the sanded wood-based panel substrate, and heat-press twice with a hot press at a temperature of 150° C. for 5 minutes and a pressure of 1 MPa.

[0017] The process after hot pressing out the plate is the same as the above embodiment.

Embodiment 3

[0019] Select a non-woven fabric with a quantitative value of 300g / m2 and a thickness of 1.0mm, dip it in an alcohol-soluble polyurethane glue solution for 40 seconds, and dry it in a dryer at a temperature of 60°C to make an impregnated non-woven fabric , the resin content is 28%, the volatile matter content is 8%, and the pre-curing degree is 30%. Sand the fiberboard, adjust the thickness of the substrate board, and remove the surface pre-cured layer at the same time, so as not to affect the surface bonding strength of the product. After this process, the thickness deviation of the substrate board is not greater than ±0.2mm. Afterwards, spread the impregnated non-woven fabric evenly on the surface of the sanded wood-based panel substrate, and heat-press twice with a hot press at a temperature of 90°C for 5 minutes at a pressure of 0.6Mpa.

[0020] The process after hot pressing out the plate is the same as the above embodiment.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention relates to immersion non-woven fabrics and a method for producing artificial boards by coating films on the immersion non-woven fabrics. The ration of the non-woven fabrics is between 50 and 500 g / m and the thickness is between 0.5 and 5 mm; and a resin adhesive is a phenolic resin adhesive, a melamine resin adhesive or a polyurethane adhesive. The resin content of the immersion non-woven fabrics is between 28 and 36 percent, the volatile content is between 8 and 9 percent, and the pre-cure degree is between 30 and 55 percent. The method for producing the artificial boards by coating films on the immersion non-woven fabrics comprises the following steps: immersing the non-woven fabrics in the resin adhesive, and drying; and coating the films on the surfaces of the artificial boards through hot pressing, wherein the hot-pressing temperature is between 85 and 150 DEG C, the time is between 5 and 10 min, and the pressure is between 0.5 and 1 Mpa. The artificial boards produced by the method are wear-resistant, fire-retardant, neat, rich in color, low in cost, and environment-friendly.

Description

technical field [0001] The invention relates to an impregnated non-woven fabric, and also relates to a method for producing an artificial board by covering the impregnated non-woven fabric. Background technique [0002] The wood-based panels produced directly from logs have no texture on the surface and a single tone, which cannot meet market demand. In order to express rich colors, novel patterns, and improve the quality of wood-based panels, the production process of veneer veneer and impregnated paper veneer wood-based panels appeared in the early 1980s, which can not only decorate the appearance of wood-based panels, but also improve physical and mechanical properties. Product use, improve the use value of wood-based panels. However, the continuous felling of natural high-quality large-diameter timber has led to the depletion of unrich forest resources, especially the destruction of rare tree species. The use of artificially cultivated fast-growing wood instead of vene...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N7/06B27D1/04
Inventor 邱天祥
Owner 邱天祥
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