Basic of TEXTILE RAW MATERIALS

TEXTILE RAW MATERIALS (PART – I)

1.    What is fiber?

2.    What is filament?

3.    What is textile fiber?

4.    Classify the textile fiber in broad sense

5.    Give some examples of seed fiber, leaf fiber, regenerated fiber and synthetic fiber

6.    Mention some important/ major cotton cultivated countries

7.    What is upland and American pima cotton?

8.    Classify the cotton fiber on the basis of staple length

9.    Mention the range of length, diameter and spinning limit of cotton fiber

10.  What are the main elements of cotton fiber?

11.   What types of impurities of are found in raw cotton?

12.  Mention some grading systems of raw cotton fiber

13.  What are cotton linters and uses of linters?

14.  Mention the average strength and MR% of cotton fiber

15.  What is the effect of acids and alkali on cotton fiber?

16.  What is ginning and it’s type?

17.  What do you know about Bangladeshi cotton?

18.  What types of faults are found in raw cotton?

19.  Mention the average length of jute fiber

20.  Mention the main elements and their amount jute fiber

21.  Mention the average strength and MR% of jute fiber

22.  What is the effect of acids and alkali on jute fiber?

23.  What types of defects are found in jute fiber?

24.  What are the uses of jute fiber?

25.  What is retting?

26.  What types of reagents are used for chemical retting?

27.  What are the main elements of flax fiber?

28.  Mention the strength and MR% of flax fiber

29.  What are the effects of acids and alkali on flax fiber?

30.   What types of dyes are used for cotton, jute and flax fiber?

31.  What is the end use of flax fiber?

32.  What are the uses of Ramie, Hemp, kemi and sisal?

33.  Mention the average strength of wool fiber

34.  What are the main elements of wool fiber?

35.  Mention the major wool producing countries

36.  What are the effects of acids and alkali on wool fiber?

37.  What types of dyes are used for wool dyeing?

38.  What is the end use of wool fiber?

39.  Mention the natural filament

40.  Mention the major silk producing country

41.  How can you express the fineness of silk filament?

42.  Mention the average length and strength of silk filament

43.  What is the effect of acids and alkali on silk?

44.  What is the end use of silk?

45.  What types of dyes are used for silk dyeing?

 TEXTILE RAW MATERIALS (PART-II)

1.    What are chemical fibers?

2.    How chemical fibers are classified?

3.    What are natural polymers based chemical fibers?

4.    What are the spinning methods of chemical fibers?

5.    What is dry spinning?

6.    What is Melt spinning?

7.    What is Wet spinning?

8.    What are the solvents generally used in dry spinning?

9.    What are the coagulants used in wet spinning?

10.  What is spinneret? Why it is used?

11.  What is plastisizer and why it is used in spinning chemical fibers?

12.  What is spin finishes?

13.  What are the functions of spin finishes in production chemical fibers?

14.  What is drawing and stretching of chemical fibers?

15.  What is the difference between cold draw and hot draw?

16.  What is texturing?

17.  What are the objectives of texturing?

18.  What is false twist method for texturing?

19.  What are the available methods for texturing?

20.  What is regenerated fiber?

21.  Classify different viscose fibers

22.  Mention chemistry involved in production of viscose rayon?

23.  What raw materials are available for viscose rayon production?

24.  What is pulp and how it is prepared?

25.  What type of spinning is suitable for viscose rayon?

26.  What ingredients are used in spinning bath of viscose rayon production?

27.  What is polynosic?

28.  What is HWM viscose rayon?

29.  What are the tests for ripening viscose? How it can be classified?

30.  How are the physical properties of viscose rayon?

31.  How are the chemical properties of viscose rayon?

32.  How is viscose rayon affected by water, sunlight?

33.  What are the uses of viscose rayon?

34.  What is the polyester fiber according to FTC?

35.  Difference between Dacron and Terylene?

36.  What is Tory?

37.  What are the methods available for spinning polyester fibers?

38.  What is Kodel 200?

39.  How are the physical and chemical properties of polyester?

40.  How is polyester affected by temperature and sunlight?

41.  What are the uses of polyester?

42.  What are polyamide fibers?

43.  How is polyamide fiber classified?

44.  What is Nylon 6,6 and Nylon 6?

45.  What are aramids fibers?

46.  How are the physical and chemical properties of nylon fibers?

47.  How do heat and organic solvent affect nylon fibre?

48.  What are the applications of polyamide fibers?

49.  What is acrylic and mod-acrylic fiber?

50.  What is suitable spinning method for acrylic fiber and why?

51.  How are the physical and chemical properties of acrylic fiber?

52.  How is acrylic fiber affected by temperature?

53.  What are the uses of acrylic fibers?

54.  What is acetate and acetate fiber?

55.  Difference between acetate and di-acetate fiber

56.  Mention chemistry involved in production of acetate and diacetate fibers

57.  How are the physical and chemical properties of  acetate and diacetate fibers?

58.  How is acetate fiber affected by moisture?

59.  What are the uses of diacetate fibers?

60.  What is polyurethane fiber?

61.  What are the methods for spinning polyurethane fiber?

62.  How are the physical and chemical properties of polyurethane fiber?

63.  How do organic solvent and heat affect polyurethane fiber?

64.  What are the uses of polyurethane fiber?

65.  What is glass fiber?

66.  What is E glass and C glass?

67.  What are the ingredients used in preparation E glass?

68.  What are the spinning methods of glass fiber?

69.  What are the uses of glass fiber?

70.  What is bi-component fiber?

71.  How is bi-component prepared?

72.  What are the objectives of preparation bi-component fiber?

73.  What are the uses of bi-component fiber?

74.  What are PVC, Vinyon, Dynel, PVA & Carbon fiber?