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A kind of production method of scientific and technological ecological impregnated paper

A production method and technology for impregnating paper, which are applied to paper, papermaking, paper coatings, etc., can solve problems such as adverse effects on the ecological environment and forest resources, effects on surface aesthetics, and poor use effects on home decoration, and achieve the elimination of bottom penetration and carbonization. Optimization of impregnation process parameters and the effect of shortening curing time

Active Publication Date: 2017-08-25
DILONG NEW MATERIAL LINYI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the natural characteristics of wood, there are some insurmountable defects in the veneer. The wood fibers only have tension in the direction of tree growth (longitudinal), and there is almost no tension in the horizontal direction, resulting in longitudinal cracking of the board during use.
Secondly, the sag on the surface of the wood fiber itself, in the process of pressing, will appear incompletely pressed locally, which is manifested as carbonization of the board surface, which affects the choice of color on the board surface. You can only choose light colors instead of dark colors, resulting in Choices are limited
Furthermore, due to the fact that the veneer's own scars and black lines are difficult to completely cover and the surface tension is limited, there will be bottom-through phenomenon and surface unevenness during the pressing process, which will have a great impact on the appearance of the surface and bring bad effects to home decoration.
In addition, in the production of veneer, a large amount of wood is used, which has a considerable adverse impact and waste on the country's ecological environment and forest resources.

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

[0020] A production method of scientific and technological ecological impregnated paper, it comprises the following steps:

[0021] (1) Preparation of urea-formaldehyde glue: Put 2,500 kg of formaldehyde into the reactor, add polystyrene: melamine: 1,2-dimethylimidazole: sodium alkylbenzene sulfonate according to the ratio of 15:20:3:0.3 15kg of accelerant prepared in proportion and adjust pH value to 7.2 with sodium hydroxide solution, then heat to 86-87°C, stop heating, keep warm for 20min; add 20% formic acid three times to adjust pH value to 4, time interval is 5min , the temperature automatically rises to 93-96°C, and after about 90 minutes, put the glue into 35°C water to detect the fog point, and then add 35 kg of the above accelerator when white fog appears, and then adjust the pH value to 5 with sodium hydroxide and start Cool down, after the temperature drops to 60°C, add 550 kg of urea and 350 kg of water, and then cool down to 35°C.

[0022] (2) Preparation of mel...

Embodiment 2

[0029] A production method of scientific and technological ecological impregnated paper, it comprises the following steps:

[0030] (1) Preparation of urea-formaldehyde glue: Put 2,500 kg of formaldehyde into the reactor, add polystyrene: melamine: 1,2-dimethylimidazole: sodium alkylbenzene sulfonate according to the ratio of 15:20:3:0.3 15 kg of accelerant prepared according to the ratio, adjust the pH value to 8 with sodium hydroxide solution, then heat to 86-87°C, stop heating, and keep warm for 20 minutes; add 20% formic acid three times to adjust the pH value to 4.6, with a time interval of 10 minutes , the temperature automatically rises to 93-96°C, and after about 90 minutes, put the glue into 35°C water to detect the fog point, and then add 35 kg of the above-mentioned accelerator when white fog appears, and then adjust the pH value to 8 with sodium hydroxide and start Cool down, after the temperature drops to 60°C, add 550 kg of urea and 350 kg of water, and then cool...

Embodiment 3

[0038] A production method of scientific and technological ecological impregnated paper, it comprises the following steps:

[0039](1) Preparation of urea-formaldehyde glue: Put 2,500 kg of formaldehyde into the reactor, add polystyrene: melamine: 1,2-dimethylimidazole: sodium alkylbenzene sulfonate according to the ratio of 15:20:3:0.3 15 kg of accelerant prepared according to the ratio and adjust the pH value to 7 with sodium hydroxide solution, then heat to 86-87°C and stop heating, keep warm for 20 minutes; add 20% formic acid three times to adjust the pH value to 4.5, the time interval is 8 minutes , the temperature automatically rises to 93-96 °C, after about 90 minutes, put the glue into 35 °C water to detect the fog point, add 35 kg of the above accelerator when white fog appears, and then adjust the pH value to 7 with sodium hydroxide and start Cool down, after the temperature drops to 60°C, add 550 kg of urea and 350 kg of water, and then cool down to 35°C.

[0040]...

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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PUM

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Abstract

The invention discloses a production method of scientific and technological ecological impregnated paper. The method is carried out sequentially according to the steps of preparing urea-formaldehyde glue, preparing melamine glue, first impregnation, first drying, coating, second impregnation, second drying, cutting, inspection, packaging, and warehousing. The method of the present invention is used to produce The scientific and technological ecological impregnated paper can completely replace the wood veneer for the veneer production of the ecological board, eliminate the adverse effects caused by the use of the wood veneer in the home decoration process, and improve the overall quality of the ecological board. Compared with the impregnated paper prepared by traditional urea-formaldehyde glue and melamine glue, it has high impact resistance and wear resistance, low free formaldehyde content, and the ecological impregnated paper is smooth and the glue is evenly distributed, which can completely cover the texture of the board and eliminate The phenomenon of bottom penetration and carbonization is eliminated, and the qualified rate and service life of the product are improved.

Description

technical field [0001] The invention relates to a production method, in particular to a production method of scientific and technological ecological impregnated paper. Background technique [0002] At present, the custom-made furniture in the home improvement market mostly uses ecological panels as the main material for processing, while the veneer of the ecological panels uses veneer to improve the flatness and covering effect of the surface. The veneer plays a key role in the overall decorative effect of the panels. Due to the natural characteristics of wood, there are some insurmountable defects in veneer. The wood fibers only have tension in the direction of tree growth (longitudinal), and there is almost no tension in the transverse direction. As a result, the board will crack longitudinally during use. Secondly, the sag on the surface of the wood fiber itself, in the process of pressing, will appear incompletely pressed locally, which is manifested as carbonization of ...

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 Patents(China)
IPC IPC(8): D21H23/24D21H25/06D21H17/49D21H19/24C08G12/12C08G12/32
Inventor 胡顺标段术林谭富国
Owner DILONG NEW MATERIAL LINYI
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