Starting with the quality situation of the draw fancy rollers,the key parts of the punch-quench line for clothing wires,analysis is done to the main quality of the fancy rollers and the efflence on the quality of clothing.

The effect of oxidant,reductive,part of food additives and some metal ions to stability of morning glory pigment were studied.

Red coloring matter is extracted from morning glory by using10%alcohol as extractant, properties of red coloring matfer are tested and itis sliown that the coloring matter has better thermostability and light-resistance,is stable at pH<6.

Adsorbing and Separating Petunia Red Pigment by Resin;