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Method for manufacturing bamboo redwood

A manufacturing method and mahogany technology, applied in the field of bamboo manufacturing, can solve the problem of single color of reconstituted bamboo, and achieve the effects of reducing surface polarity, increasing dye accessibility and anti-bleeding, and increasing specific surface area.

Inactive Publication Date: 2012-07-04
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Recombined bamboo is a new bamboo material that reorganizes and glues bamboo into shape. Compared with other bamboo profiles, recombined bamboo has the characteristics of high utilization rate of bamboo. Recombined bamboo manufacturing mainly includes bamboo bundle processing, drying, soaking Glue, secondary drying, billet assembly and hot (cold) pressing and other processes. Currently, the recombined bamboo prepared by ordinary manufacturing methods has a single color, and the added value of the product needs to be further improved. Manufacture of dyed recombined bamboo-bamboo mahogany whose color is similar to redwood can greatly increase the added value of recombined bamboo and increase the processing profit of recombined bamboo

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Material selection and cutting, the diameter of the selected moso bamboo raw materials should be greater than 50 mm, and the selected moso bamboo raw materials need to be cut into bamboo sections of a certain length with a cross-cut saw; the bamboo tube is radially divided into 10-15 equal parts by a bamboo splitter , using a bamboo slicing machine to remove bamboo green, bamboo yellow and bamboo joints, and prepare bamboo chips of a certain specification, and the bamboo chips are rolled and separated. Bamboo bundles connected with a loose network structure, activation treatment of bamboo bundles: soak the rolled bamboo bundles in 8% NaOH aqueous solution for 8 hours under a pressure of 0.5MPa to remove part of the hemicellulose and pectin components in the bamboo bundles , reduce its surface polarity, then rinse with tap water to neutral and then dry to a moisture content of about 10%; dyeing adhesive configuration, add acid scarlet, acid blue, acid yellow and sodium ch...

Embodiment 2

[0021] Material selection and cutting, the diameter of the selected moso bamboo raw materials should be greater than 50 mm, and the selected moso bamboo raw materials need to be cut into bamboo sections of a certain length with a cross-cut saw; the bamboo tube is radially divided into 10-15 equal parts by a bamboo splitter , using a bamboo slicing machine to remove bamboo green, bamboo yellow and bamboo joints, and prepare bamboo chips of a certain specification, and the bamboo chips are rolled and separated. Bamboo bundles connected with a loose network structure, bamboo bundle activation treatment: soak the rolled bamboo bundles in 8% NaOH aqueous solution for 6 hours under a pressure of 0.8MPa to remove part of the hemicellulose and pectin components in the bamboo bundles , to reduce its surface polarity, then rinse with tap water to neutral and then dry to a moisture content of about 10%; dyeing adhesive configuration. Add acid scarlet, acid blue, acid yellow and sodium ch...

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Abstract

A method for manufacturing bamboo redwood includes steps of selecting and cutting off materials, and radially splitting a bamboo barrel into 10 to 15 equal parts by a bamboo cutting machine; removing bamboo green parts, bamboo yellow parts and bamboo joints by a bamboo slicer, and preparing bamboo chips in certain sizes; grinding the bamboo chips, dividing the bamboo chips into threads, subjecting bamboo bundles to activating treatment: applying dyeing adhesive; dipping the bamboo bundles in dyeing phenolic resin adhesive solution for 3 minutes to 5 minutes in a pressurization manner, manually paving dyed adhesive-dipped bamboo bundles longitudinally to form a plate blank with a certain thickness; feeding the blank into a hot press to realize solidifying and forming, and preparing a reconstructed bamboo plate; and finally splitting and sawing the bamboo plate according to needs, and processing and using the bamboo plate. The dyeing phenolic resin adhesive solution contains from 20 to 40% of solid. The crystallinity of bamboo fibers and the specific surface areas of the bamboo bundles are reduced by means of pressurized activating treatment, accessibility and leaching resistance of dye are improved, imitated redwood bamboo furniture and decorative materials are manufactured, and additional values of reconstructed bamboo are increased by 40% at least under the condition that cost is seldom increased.

Description

technical field [0001] The invention belongs to the technical field of bamboo production, in particular to a production method of bamboo mahogany. Background technique [0002] Recombined bamboo is a new bamboo material that reorganizes and glues bamboo into shape. Compared with other bamboo profiles, recombined bamboo has the characteristics of high utilization rate of bamboo. Recombined bamboo manufacturing mainly includes bamboo bundle processing, drying, soaking Glue, secondary drying, billet assembly and hot (cold) pressing and other processes. Currently, the recombined bamboo prepared by ordinary manufacturing methods has a single color, and the added value of the product needs to be further improved. Manufacture of dyed recombined bamboo-bamboo mahogany whose color is similar to mahogany can greatly increase the added value of recombined bamboo and increase the processing profit of recombined bamboo. Contents of the invention [0003] The technical problem solved b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27N3/08
Inventor 吴义强李新功郑霞
Owner CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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