1. Medicines also contain colourants, often in large amounts.

2. A preferred colour of colourant for the etch-resist ink is blue.

3. Also refer to the phenomenon that the colourant in an ink being soluble in the salvers during varnishing or laminating.

4. A colourant can be applied to the surface of an object, like paint or lacquer, or it may be integrated into the material, as in a dyed textile, a solid plastic or a stone.

4. try its best to gather and build good sentences.

5. With natural colourant the process can be served as clean process owing to its natural degradation and non-toxicity side effect.

6. Although it is sold under that name it will have been replaced with a pigment or dye colourant.

7. Delicate waves and subtle highlights enhance gentle movement Natural colourant adds richness to long, wavy hair.

8. The variety and pattern of hand-painted products can be enlarged by using starch colour pasteinstead of colourant.

9. Use: this product can be used as raw materials of organic synthesis, colourant and medicines, for instance, the initiator - dibenzoyl peroxide, pesticide and herbicide etc.

10. The obtained results show that rare earth elements are used to increase the dye absorptivity and fixed colourant and reduce the contamination of dyeing waste water and so on.

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