Acid and reactive dyes can be used for direct printing as well for flag production, cotton and other natural fabrics that need the advantages of dye over pigment.
酸性和活性染料可以用于喷印旗帜，棉布和其他天然织物要用颜料来喷印。
2
Certain colors, due to pigment ingredients, may inherently have very poor sulfuric acid resistance.
某些颜料，由于色素组成成份的性质而导致耐酸性很差。
3
Objective To establish human normal melanocytes cell line in vitro and observe the effects of Azelaic acid on the pigment production of the epidermal melanocytes and B16 cells.