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。
2
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。
3
Selection of fireproofing coating components, such as forming agent, carbonforming agent, dehydration and carbonforming catalyst and colourant, were discussed.