Questions and answer about Garments technology Part 7

61. What is folder ?

Ans: It is a work aid instrument, Which is used to fold the fabric at the time of sewing.

62. How many types of folder are used at the time of sewing ?

Ans: * Folder at collar band rolling
                                  Cuff rolling
Top center ( Upper front of shirt )
Lower front of shirt
sleeve rolling
Bottom rolling
Cuff attaching.
Bottom hemming
Waist belt making & attaching

63. What is the needle gap for double needle chain stitch sewing m/c ? 

Ans: It is from 3/16 to 2 inch.

64. How many threads are used for double needle chain stitch m/c ?

Ans: Four thread, Two thread are coming from needle & other two are coming from looper.

65. What is the sewing speed of Button attach sewing m/c ?

Ans: It is 1200 to 1500 SPM ( stitch per minute ).

66. What is the speed of overlock sewing ?

Ans: It is from 4500 to 5000 SPM.

67. How many needle & loopers are use in Interlock / 5 thread sewing m/c ?

Ans: There are 2 needle & 3 loopers are used.

68. How much is the size of bartack ?

Ans: Bartack Length = 3 to 16 mm
     Bartack Width = 1 to 6 mm

69. How many threads are used in bling stitching m/c ?

Ans: Normally 1 thread use but 2 thread can be used.

70. Why it is called blind stitching ? Where blind stitching are used ?

Ans: Normally it is invisible from front side. Blind stitch are used for hemming, bottom rolling etc.