Preparation method of seersucker
A technology of seersucker and cotton yarn, which is applied in the field of textile yarns, and can solve the problems such as the decrease of the refreshing feeling of seersucker, and achieve the effect of refreshing fabrics, obvious bubbles, and fluffy hand feeling
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Embodiment 1
[0032] A preparation method for seersucker, the steps are as follows:
[0033] (1) Preparation of polyester low elastic yarn:
[0034] In the process of preparing fibers from PET with an intrinsic viscosity of 0.6dL / g according to the FDY process, the ring air is used to cool, and the arrangement of the spinneret holes on the spinneret is controlled to meet certain conditions. After the FDY filaments are prepared, the temperature is 90 ℃, relaxation heat treatment for 30min to obtain polyester low elastic yarn;
[0035] The spinneret hole is a crescent-shaped spinneret hole and an "H"-shaped spinneret hole. The cross-section of the crescent-shaped spinneret hole is surrounded by an outer arc M and an inner arc N. The outer arc M and the inner arc N are The two intersection points are A and B respectively, and the length of the line segment AB is 0.091mm;
[0036] The certain conditions are: all the spinneret holes are distributed in concentric circles, the number of 30 cresc...
Embodiment 2
[0048] A preparation method for seersucker, the steps are as follows:
[0049] (1) Preparation of polyester low elastic yarn:
[0050] In the process of preparing fibers from PET with an intrinsic viscosity of 0.69dL / g according to the FDY process, the ring air is used to cool, and the arrangement of the spinneret holes on the spinneret is controlled to meet certain conditions. After the FDY filaments are obtained, the temperature is 91 ℃, relaxation heat treatment for 30min to obtain polyester low elastic yarn;
[0051] The spinneret hole is a crescent-shaped spinneret hole and an "H"-shaped spinneret hole. The cross-section of the crescent-shaped spinneret hole is surrounded by an outer arc M and an inner arc N. The outer arc M and the inner arc N are The two intersection points are A and B respectively, and the length of the line segment AB is 0.089mm;
[0052] A certain condition is: all the spinneret holes are distributed in concentric circles, the number is 48. The cre...
Embodiment 3
[0064] A preparation method for seersucker, the steps are as follows:
[0065] (1) Preparation of polyester low elastic yarn:
[0066] In the process of preparing fibers from PET with an intrinsic viscosity of 0.6dL / g according to the FDY process, the ring air is used to cool, and the arrangement of the spinneret holes on the spinneret is controlled to meet certain conditions. After the FDY filaments are produced, the temperature is 104 ℃, the relaxation heat treatment time is 25min to obtain polyester low elastic yarn;
[0067] The spinneret hole is a crescent-shaped spinneret hole and an "H"-shaped spinneret hole. The cross-section of the crescent-shaped spinneret hole is surrounded by an outer arc M and an inner arc N. The outer arc M and the inner arc N are The two intersection points are A and B respectively, and the length of line segment AB is 0.086mm;
[0068] The certain conditions are: all the spinneret holes are distributed in concentric circles, the number is 48....
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