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Textile Science 2010 Question Paper For CBSE Class XII Exams

1. Explain any five of the following terms in 2-3 sentences each : (2�5=10 Marks)

   (i) Soaps
   (ii) Alkalies
   (iii) Whitening agents
   (iv) Anti - bacterial finish
   (v) Oxidizing agents
   (vi) Embossing

2. (i) Explain the cleansing action of water in laundering of fabrics. What causes Hardness of water? (3+2 Marks)
   (ii) Define the term 'Finishes' what are the advantages of finishing fabrics? (2+3 marks)
   (iii) Give a detailed account of Mercerization for finishing of fabrics. (5 Marks)
3. Distinguish between any three of the following : 5�3=15
   (i) Routine and Special purpose finishes
   (ii) Fiber and Yarn dyeing
   (iii) Block and Roller printing (iv) Water repellent and Water-proof finishes
4. Write short notes on the following: 5�3=15
   (i) Principle and method of designing fabrics with tie dye (ii) Piece dyeing
   (iii) Discharge style of printing
5. (i) How will appearance and finishing affect the selection, use and care of fabrics? (10 Marks)
   (ii) Discuss the colorfastness properties you would consider important for a fabric to be used as a curtain. (5 Marks)