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Production method of bamboo plywood coated with film

A production method and technology of bamboo plywood, applied in chemical instruments and methods, layered products, household components, etc., can solve the problem that the bonding fastness between the layers is difficult to achieve the best state, the production cycle of bamboo plywood is long, and the processing Unreasonable process and other problems, to achieve the effect of reducing baking time, solid bonding between boards, and improving work efficiency

Inactive Publication Date: 2010-09-15
南充富达竹业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned patents all use bamboo forests with large circular diameters, which have few sources of raw materials and waste more raw materials. At the same time, the processing technology of the above-mentioned two patents is not reasonable, the production cycle of bamboo plywood is long, the production efficiency is low, and the bonding between the layers is firm. Difficult to reach the best condition

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] 1. Prepare materials according to the following requirements:

[0014] 1. Select small-diameter bamboo raw materials without mildew, decay, and insects, cut off the sections according to the required length, and weave them into bamboo curtains or mats for later use. The small-diameter bamboos are water bamboo, dry bamboo, wood bamboo, light bamboo, thunder bamboo, For any one or several kinds of bamboo curtains such as square bamboo, there should be basically no gaps when the bamboo mat is woven, and the four sides should be neat, and short bamboo strips cannot be connected to long strips;

[0015] 2. The thickness of the veneer is 1.2mm, and the area is 1.27~1.3×0.83~0.90m2. There shall not be more than 2 wooden combs per square meter, and the maximum damaged area shall be ≤500mm 2 , the surface must not be attached with tape, rope or other attachments;

[0016] 3. 80 grams of pure wood pulp paper is used for the coated paper, and its length, edge and surface must not...

Embodiment 2

[0029] 1. Prepare materials according to the following requirements:

[0030] 1. Select small-diameter bamboo raw materials without mildew, decay, and insects, cut off the sections according to the required length, and weave them into bamboo curtains or mats for later use. The small-diameter bamboos are water bamboo, dry bamboo, wood bamboo, light bamboo, thunder bamboo, For any one or several kinds of bamboo curtains such as square bamboo, there should be basically no gaps when the bamboo mat is woven, and the four sides should be neat, and short bamboo strips cannot be connected to long strips;

[0031] 2. The thickness of the veneer is 1.3mm, the area is 1.27~1.3×0.83~0.90m, and the surface of each square meter shall not exceed 2, and the maximum damaged area is ≤500mm 2 , the surface must not be attached with tape, rope or other attachments;

[0032] 3. Use 100 grams of pure wood pulp paper for the coated paper, and its length, edge and surface must not be broken or damag...

Embodiment 3

[0045] 1. Prepare materials according to the following requirements:

[0046] 1. Select small-diameter bamboo raw materials without mildew, decay, and insects, cut off the sections according to the required length, and weave them into bamboo curtains or mats for later use. The small-diameter bamboos are water bamboo, dry bamboo, wood bamboo, light bamboo, thunder bamboo, For any one or several kinds of bamboo curtains such as square bamboo, there should be basically no gaps when the bamboo mat is woven, and the four sides should be neat, and short bamboo strips cannot be connected to long strips;

[0047] 2. The thickness of the veneer is 1.4mm, and the area is 1.27~1.3×0.83~0.90m2. There shall be no more than 2 wooden combs per square meter, and the maximum damaged area shall be ≤500mm 2 , the surface must not be attached with tape, rope or other attachments;

[0048] 3. Use 120 grams of pure wood pulp paper for the coated paper, and its length, edge and surface must not be ...

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Abstract

The invention discloses a production method of bamboo plywood coated with a film. The production method comprises the processes of: sheet cutting, curtain or mat knitting, drying and sizing, glue dipping, glue airing, re-drying, blank assembling, hot pressing and blank edge processing and is characterized by comprising the specific steps: drying a bamboo curtain or a bamboo mat knitted by bamboo with small diameter at 100-200 DEG C firstly till water content is 10-14% and sizing; dipping in glue and then drying at 100-120 DEG C till the water content is 6-14%; adding veneers, covering film paper, dipping in glue separately and airing; assembling blanks of mat and short and long curtains alternately; hot pressing and processing edges of the blanks. The invention has wide raw material sources and less raw material waste, shortens drying time, improves working efficiency, achieves more firm gluing among plies, has no foaming and flaking phenomenon, and overcomes the defects of surface hole shrinking and incomplete gluing due to colloids seepage, which are generated when drying is carried out below 95 DEG C in the traditional method. All indexes of the product provided by the invention meet or exceed national standards.

Description

technical field [0001] The invention relates to a method for processing layered products, in particular to a method for producing film-coated bamboo plywood. Background technique [0002] Bamboo plywood is a plate made of bamboo material as the main structure and filling material under high pressure. Because of its high hardness, high flexural and compressive strength, and acid and alkali resistance, bamboo plywood is widely used in building formwork and car boxes. Body, large machinery packaging, mine doors and other fields. There are many bamboo plywood production methods at present, a kind of bamboo plywood and its manufacture method disclosed as Chinese patent 200610121114.7, and its step is to select the second layer and the third layer of bamboo strips of more than 4 years of moso bamboo and weave them into bamboo curtains. Bamboo curtains are coated with glue and dried to a water content of 13%. After the billet is formed, it is first cold-pressed to 180MPa and then ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27N3/08B32B21/04
Inventor 何征
Owner 南充富达竹业有限公司
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