the mechanism of action of flame retardants is more complicated and involves various factors, but the role of flame retardants is nothing more than th…

(1) polyolefin polyolefin burns easily. the upper end of the flame is yellow and the lower end is blue. it melts and drips when burning, so it require…

the flame retardancy of fibers includes decorative cloths and fabrics for clothing, public facilities and transportation, etc. , it is increasingly ne…

some colored organic compounds in nature can be made into fiber materials or paper, leather, etc. by appropriate methods. matter is dyed into various …

classification is based on the application object of the dye, the dyeing method of the dye, the application performance and the combination form with …

(1) the nature of light the color of dyes and the structure of the dye molecule itself is also related to the properties of the light that illuminates…

the relationship between the number of conjugated double bonds of dyes and their color. the more conjugated double bonds in an organic compound molecu…

acid dyes are often sodium nitrate salts of aromatic compounds. since this type of dyeing needle is usually dyed in an acidic solution, it is an acid …

reactive dyes are a new type of dye. this type of dye molecules contains active groups that can react with fibers. during dyeing, they can form covale…

reactive dyesmainly composed of two parts: active group and dye matrix, and the connection of the two parts can be directly connected, or connected vi…

reactive dyes are dyed on fibers through four processes: adsorption, diffusion, fixation and washing; ①the dye is adsorbed from the dye solution to th…