This is relative to raw lacquer. The raw lacquer mentioned above can be regarded as a general term. Raw lacquer includes raw lacquer and cooked lacquer. Cooked lacquer, as its name implies, is to solidify raw lacquer. Why raw lacquer needs refined mature lacquer is because it changes the original properties of raw lacquer, such as hardness, viscosity, transparency and so on. Therefore, refining can change the rough molecular structure of raw lacquer and make it more closely combined, which can be understood as enhancing the activity of laccase. Common cooked paints include bright paint and transparent paint, and bright paint is divided into red bright paint and black bright paint. And wiping varnish, that is, makeup paint, can be regarded as semi-cooked paint.
There are two traditional methods for extracting raw lacquer: natural stirring, drying and decocting. Now few people use the method of decocting.
Originally, according to the use of paint, we should pay attention to the selection of materials, such as which raw paint is suitable for processing red push-gloss paint and which raw paint is suitable for processing tight push-gloss paint. But now the general raw lacquer suppliers produce standard raw lacquer, which is based on the advantages of raw lacquer in various places and synthesized according to different proportions of various raw lacquers, thus integrating the disadvantages of single performance of raw lacquer in various places.