Anionic veneer dyeing material and preparation process thereof

Abstract

The invention discloses an anionic veneer dyeing material and a preparation process thereof. The anionic veneer dyeing material comprises the following components in parts by weight: 20-25 parts of resin, 30-35 parts of an anionic dye, 1.5-1.8 parts of cetyltrimethylammonium bromide chloride, 2-3 parts of lignosulfonate, 2.1-2.5 parts of ethoxylatedbisphenol A, 2-3 parts of a blocked water-based isocyanate cross-linking agent, and 15-20 parts of deionized water. The preparation process comprises the steps of: A, pouring resin, cetyltrimethylammonium bromide chloride and lignosulfonate into a negative-pressure vacuum tank to obtain a product B; and C, pouring the product B, 1 / 2 of the anionic dye, ethoxylatedbisphenol A, the residual anionic dye, the blocked water-based isocyanate cross-linking agent and deionized water into a high-pressure stirring tank, and performing uniform stirring to obtain a finished product. The anionic veneer dyeing material and the preparation process thereofhave the characteristics that the color fastness can be effectively improved, and the dyeing efficiency is improved.

Description

technical field [0001] The invention relates to a dyeing material, in particular to an anionic veneer dyeing material and a preparation process thereof. Background technique [0002] During the growth process of wood, affected by the external environment, there may be defects such as discoloration and wormholes. This kind of wood is not suitable for use as a board alone. In order to make reasonable use of this kind of wood, the researchers cut it into veneer , and then use dyeing technology to treat the blemishes on its surface. After coloring, a beautiful and exquisite new decorative material can be produced. Because of its smooth surface and rich colors, it can well meet the requirements of different decoration places and the majority of customers. Buyer's own texture preference. Veneer dyeing methods are usually used for veneer dyeing, solid wood dyeing and standing wood dyeing; the so-called veneer dyeing refers to the uniform dyeing of the veneer obtained by rotary cut...

AI Technical Summary

Problems solved by technology

However, due to the general permeability of existing veneer dyeing materials, when veneer dyeing is dipped and dyed, only the surface layer of veneer can only be dyed, and the color fastness of existing dyes is also general, which will lead to dyeing. The veneer fades after a short period of time; it also takes longer to stain the veneer with off-the-shelf dyes

Therefore, the existing technology has the problems of poor color fastness performance and low dyeing efficiency

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