textile wet processing 5 (dyeing of textile material 1) textile wet processing 12 (maintenance of various processing machine and quality control) Welcome to your textile wet processing 5 (dyeing of textile material 1) 1. which dyes are restricted in EUmarkets? azo DYE acid dye basic dye reactive dye 2. which dye is water soluble dye vat sulphur direct disperse 3.Which dye is not a water soluble dye? reactive acid basic vat 4. ----------- dye is a water insoluble dye. disperse reactive acid basic 5. silk fiber dyed with--- dye acid dyes direct disperse azoic 6.Synthetic fiber are dyed with --------dye direct vat disperse azoic 7.sulphur dyes are insoluble in water which are made soluble by reduction with sodium sulphide sodium chloride sodium carbonate sodium silicate 8.congo red dye is a---------------------dye acid basic direct vat 9. chemical required for direct dyeing sodium carbonate sodium hydro sulphite acid pottasium sulphate 10. ------------dye is a covalent bond dye direct reactive vat disperse dye 11.in reaactive dyeing optimum PH for cotton is required is----------- 7-8 8.5-9.5 10.8-11 12-13 12.The other name of common salt is --------------- sodium crabonate sodium chloride sodium silicate sodium sulphate 13. The other name of glauber salt is------------ sodium sulphate sodium chloride sodium silicate sodium hydroxide 14. the other name of soda ash is------------ sodium hydroxide sodium chloride sodium silicate sodium carbonate 15. the other name of caaustic soda is----------- sodium carbonate sodium silicate sodium hydroxide sodium chloride 16. which statement is incorrect for acid dyes acid dyes are suitable for wool, and silk these are applied from stronglyt acidic to neutral PH these dyes are anionc in nature it is a water insoluble dye 17.metal complex dye is--------------- two metal ion is completed with one dye molecule two dye molecule which are complesxed with one metal atom 1 metal ion is compted with 10 molecule two atom which one two molecule 18. the other name of basic dye is----- dyes azonic cationic metal complex dye non cationic 19. which of the following is a protein fiber cotton polyster wool nylon 20.which stage is first azo dyeing process? naptholation oxidation diazotisation exhaustion 21.which stage is second azo dyeing process? oxidation diazoliration naptholation neutralization 22.--------------- is used for dissolving the napthol in water at the time of azoic dyeing sodium hydroxide sodium chloride sodium carbonate sodium silicate 23.----------------- temperature is required for cotton in azoic dye room temp 80-85 100-110 110-130 24. -------------- is used coupling becomes the second stage in azoic dyeing. common salt diazonium salt sodium carbonate sodium silicate 25.--------- dye are most widely used class of dyes on cotton direct vat reactive acid Time's up
textile wet processing 12 (maintenance of various processing machine and quality control)
