Decoction (decoction tissues) - one of the operations in the manufacture of linen and cotton fabrics. Designed to remove material residues dressing, "satellites" of cellulose (mineral, nitrogen, fat, etc.) And some impurities. The material is placed in a closed pot with a solution of sodium hydroxide, soda ash and wetting OP 7 and OP-10. The boiler is under pressure, the air is not flowing, and the temperature therein about 100-135 ° C. After processing it is possible to moisten the cloth with water, and the material becomes yellowish-brown color, which is formed by the destruction of the decoction with waxy and other impurities.
Decoction
Decoction (decoction tissues) - one of the operations in the manufacture of linen and cotton fabrics. Designed to remove material residues dressing, "satellites" of cellulose (mineral, nitrogen, fat, etc.) And some impurities. The material is placed in a closed pot with a solution of sodium hydroxide, soda ash and wetting OP 7 and OP-10. Boiler ...