The variety and pattern of hand-painted products can be enlarged by using starch colour pasteinstead of colourant.
用淀粉色浆代替颜料。扩大了手绘产品的花色品种。
With natural colourant the process can be served as clean process owing to its natural degradation and non-toxicity side effect.
天然色素可自然降解、无毒性副作用，可以作为清洁染色工艺。
Selection of fireproofing coating components, such as forming agent, carbonforming agent, dehydration and carbonforming catalyst and colourant, were discussed.
