How can bamboo achieve the old effect?

Bamboo has the characteristics of short growth cycle, high yield, and fast growth. Developing bamboo utilization is the best way to solve the serious shortage of forest resources at present, and it is also one of the powerful measures to make the utilization of forest resources enter a virtuous circle and sustainable development. At present, bamboo can be divided into bleached white (natural color) and carbonized color according to different processing techniques. Through surface dyeing, the surface quality of bamboo can be improved, its visual characteristics and added value can be improved, and people's demand for bamboo versatility can be met. Comprehensive utilization of bamboo is an important method, which can alleviate the pressure caused by wood shortage to some extent. Compared with wood, bamboo has no transverse structure, which is not conducive to the penetration of dye molecules and is extremely difficult to dye. China is a big bamboo producing country, and a large number of bamboo products are exported every year. Due to the lack of bamboo dyeing, especially deep dyeing technology, the product quality is unstable, which has become an important factor restricting the development of bamboo products. The invention patent with the patent number of CN2011102461808 discloses a deep dyeing method for bamboo and wood, which can realize the deep dyeing of bamboo and wood plates, with uniform dyeing, small color difference and low dyeing cost. Even so, it is extremely difficult to make bamboo as antique as wood, and it is difficult to break through technically.

Technical realization elements:

The invention solves the technical defects of the existing bamboo antique process, and provides a bamboo dyeing and aging process, which comprises the following steps: destroying the original bamboo, primary coloring, secondary coloring and manual processing to obtain antique bamboo. The specific operation steps are as follows: (1) destruction; (2) polishing: polishing the damaged bamboo with DuPont wire; (3) primary coloring: roll coating the ground color on the polished bamboo by a roll coating method, wherein the ground color is a water-based transparent primer and a color paste combination solution; (4) preliminary drying; (5) secondary coloring: coloring with 40-50% dye main agent and 50-60% dye paste (red, yellow, black and white), and then coating on the bamboo after primary drying by roller coating; (6) Manual treatment: the raw bamboo dyed with dye is rubbed and evenly colored, and the rubbing treatment refers to wiping the dye on the surface with a soft wet cloth first, and then wiping with a dry cotton absorbent soft cloth; After wiping, uniformly coloring (7) with a double-roller brush machine for secondary drying to obtain antique bamboo. According to the technical scheme, firstly, various natural effects are simulated by pre-destroying bamboo, and then polished by DuPont wire, so that the aging effect is more real and obvious; If the surface is polished with abrasive belt, the aging effect will be lost, and the subsequent coloring will also be affected, which will easily lead to poor coloring uniformity; Apply the primer first, and then apply the main dye after drying. Primer film can not only protect bamboo, but also provide a good attachment point for subsequent dyes, and the dyeing effect of dyes is better. In the later manual treatment, wet cloth and dry cloth are used together to wipe out the obvious bright and dark layers to make the old effect, and the double-roller uniform color makes the concave holes on the surface of the bamboo sheet evenly colored, making the wood grain of the surface board clearer and more distinct, otherwise it is easy to go out of shape. It is best to