Spinning Basic Question Part - 03

31. What is the count?

Answer:  Count is a numerical expression which defines the coarseness or fineness of the yarn.

32. What is the type of yarn count?

Answer: Two types of the count;

1. Direct system (Mass per unit length here length is fixed.
2. In-direct system (Length per unit mass here weight is fixed).

Direct system count calculating formula:

N = (W x l) /L. Example: Tex, denier, jute.

In-direct system count calculating formula:

N = (L x w)/(W x l). Example: Cotton (Ne), Metric (Nm), Worsted count.

Yarn Spinning

33. What is 30,40, and 50 deniers?

Answer: The weight of 9000m yarn is equal to 30,40, and 50 gm.

34. What is 30,40, and 50 Tex?

Answer: The weight of 1000m yarn is equal to 30,40, and 50 gm.

35. What is 30,40, and 50 Ne?

Answer: The weight of 30,40, and 50 hanks (840 yds) equal to 1 pound.

36. What is the type of yarn?

Answer: According to yarn length yarn are two types: 

1. Spun yarn: After twisting staple fiber which length of yarn we will get is called spun yarn. 
2. Filament yarn: It has indefinite length.

37. What is yarn twist?

Answer: The spiral disposition of fibers which is usually the result of yarn making is called yarn twist.

38. What is the type of yarn twist?

Answer: Yarn twist is two types: 

1. S-Twist: The Middle portion of yarn look like the letter of S is called S-twist. 
2. Z-Twist: The Middle portion of yarn looks like the letter of Z is called Z-twist.

39. Which M/C used for S-Twist?

Answer: Rotor spinning machine is used for S-Twist yarn.

40. Which M/C used for Z-Twist?

Answer: Ring spinning machine is used for Z-Twist yarn.

41. Which twist produces high-quality yarn?

Answer: Z-Twist produces high-quality yarn.

42. What is the first step in yarn production?

Answer: Bale Management in Blow Room.

43. What is the second step of yarn production?

Answer: Carding in Carding M/C.

44. What is the third step of yarn production?

Answer: Drawing in Draw Frame M/C.

45. What is the fourth step of yarn production?

Answer: Roving in Simplex or Speed frame.

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