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Paint-free plate repairing paper and production method thereof

A technology of ecological board and preparation process, which is applied in papermaking, paper coating, paper machine, etc., can solve the problems of ecological board carbonization, high repair cost, low price, etc., achieve good filling and repairability, simplify the repair process, The effect of reducing the loss of sheet metal manufacturers

Active Publication Date: 2016-11-09
SHANDONG LUNAN NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If it is sold directly, not only the price is low and it is difficult to sell, but if it is scrapped directly, it will cause waste of resources
Only sanding the surface of the ecological board after removing the surface decorative paper is too rough to directly paste the decorative paper. The traditional method in the industry is to sand the defective board, sand off the decorative paper and veneer, and then re-attach the veneer and decoration. The method of repairing paper is as follows: "sanding (surface paper and veneer) → glue → veneer pasting → cold pressing → hot pre-pressing → sanding → repairing → hot pressing → finished product packaging", this method is repaired, The ecological board needs to be repeatedly sanded, cold pressed and hot pressed repeatedly, and the ecological board is prone to carbonization, the repair cost is high, the process is complicated, time-consuming and laborious, and the environmental protection is poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] (1) Beating: the softwood groundwood pulp fiber with a fiber diameter of 40 μm, a fiber length of 2 mm, and a dry weight ratio of 20 parts, a fiber diameter of 10 μm, a fiber length of 0.5 mm, and a dry weight ratio of 10 The hardwood chemi-mechanical pulp fiber of one part and the fiber diameter of 6 μ m, the fiber length of 1 mm, and the glass fiber of 5 parts by dry weight are put into the beating tank for mixing and beating, and the beating degree of the suspension slurry is 20 ° SR, and the obtained Prepare a suspension slurry with a solid suspension concentration of 2%;

[0016] (2) Sizing and forming: dilute the suspended slurry with water to a solid suspension concentration of 0.2%, and set the fiber weight to 42g / m 2 , sending the prepared suspension slurry to the fourdrinier forming paper machine for dehydration and drying to obtain formed and dried paper sheets;

[0017] (3) Coating with thermosetting resin: Quantitative 120g / m according to the ecological bo...

Embodiment 2

[0023] (1) Beating: the coniferous wood groundwood fiber with a fiber diameter of 50 μm, a fiber length of 3.5 mm, and a weight ratio of 30 parts, and a fiber diameter of 25 μm, a fiber length of 1 mm, and a weight ratio of 15 parts of hardwood Chemical mechanical pulp fiber and fiber diameter are 16 μ m, fiber length is 6mm, and the glass fiber that weight ratio is 10 parts is put into beating tank and is mixed beating, and the beating degree of suspension slurry is 40 ° SR, and the obtained solid suspension concentration is 3% suspension slurry;

[0024] (2) Sizing and molding: dilute the suspended slurry with water to a solid suspension concentration of 0.7%, and set the fiber weight to 110g / m 2 , sending the prepared suspension slurry to the fourdrinier forming paper machine for dehydration and drying to obtain formed and dried paper sheets;

[0025] (3) Coating with thermosetting resin: Quantitative 200g / m2 according to the ecological board repair paper 2 , on-line coat...

Embodiment 3

[0031] (1) beating: the coniferous wood groundwood pulp fiber that fiber diameter is 55 μm, fiber length is 4.2mm, weight portion ratio is 33%, fiber diameter is 32 μm, fiber length is 1.25mm, weight portion ratio is 16 parts broad Leaf wood chemical mechanical pulp fiber and fiber diameter are 20 μm, fiber length is 9mm, and the glass fiber that weight ratio is 11 parts is put into beating tank and is mixed beating, and the beating degree of suspending slurry is 50 ° SR, and the obtained solid suspension concentration 4% suspension slurry;

[0032] (2) Sizing and forming: dilute the suspended slurry with water to a solid suspension concentration of 1%, and set the fiber weight to 156g / m 2 , sending the prepared suspension slurry to the fourdrinier forming paper machine for dehydration and drying to obtain formed and dried paper sheets;

[0033] (3) Coating with thermosetting resin: Quantitative 260g / m2 according to the ecological board repair paper 2 , on-line coating of epox...

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Abstract

The invention belongs to the technical field of domestic finishing carpentry plates, and relates to a paint-free plate repairing paper having wide application range and being simple to use, and a production method thereof. The paint-free plate repairing paper is used for repairing secondary defective paint-free plates in the production process. Raw materials for producing the repairing paper comprise, by weight, 20-40 parts of needle leaf wood-ground pulp fibers, 10-20 parts of broadleaf wood chemimechanical pulp fibers, 5-15 parts of glass fibers, and 30-65 parts of thermosetting resin; and the thermosetting resin comprises epoxy resin-modified acrylic resin. The production method of the paint-free plate repairing paper comprises pulping, pasting molding, thermosetting resin coating, primary drying, secondary drying and packaging. The paint-free plate repairing paper has the advantages of good filling property and repairability, simplification of the repairing treatment technology of the defective paint-free plates, realization of repairing only through one-shot sanding and one-shot hot pressing, avoiding of the carbonization and bottom exposure problems of finished plates, simple repairing step, wide adaptability, good repairing effect, and environmental protection and healthiness, and the production method is simple and reliable.

Description

technical field [0001] The invention belongs to the technical field of woodworking boards for home decoration, and relates to a kind of ecological board repair paper with wide application range and simple use and a preparation method thereof, which is used for repairing defective ecological boards in the production process. Background technique [0002] Eco-board is a furniture board for decoration. According to the production process, it can be divided into particle board, blockboard, density board, and Ozon board. According to different materials, there are Malacca, paulownia, fir, etc. The traditional ecological board production process first uses bleached poplar veneer or technical veneer to modify the board surface, and then presses the decorative paper under a certain temperature, pressure and time. When using bleached poplar veneer or technical veneer to modify the board surface, It needs to go through processes such as gluing, hot pressing, and cold pressing. This pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H15/12D21H13/40D21H11/08D21H11/02D21F11/02D21H25/06D21H19/24
CPCD21F11/02D21H11/02D21H11/08D21H13/40D21H15/12D21H19/24D21H25/06
Inventor 佟克本刘长冬林庆旭佟瑞丰
Owner SHANDONG LUNAN NEW MATERIALS
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