Three-dimensional hollow down-like short fiber
A three-dimensional hollow, imitation down technology, which is applied in fiber processing, hollow filament manufacturing, fiber chemical characteristics, etc., can solve the problems of lack of down warmth and softness, inability to feel close to down, and large fiber fineness, etc., to achieve good warmth The effect of high reliability, low cost and simple process operation
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Embodiment 1
[0023] 1. PET and PBT are respectively selected from Sinopec Yizheng chemical fiber spinning grade semi-dull varieties, and the composite ratio PET:PBT is 6:4 according to the weight percentage;
[0024] 2. PET and PBT enter the composite assembly through their respective screw extruders. After the two materials are combined, they are sprayed out from the C-shaped spinneret hole, cooled and formed by the ring blowing, and then enter the winding silk barrel;
[0025] 3. The silk in the silk barrel is stretched and siliconized after being bundled, cut off and sent to the drying and setting machine;
[0026] 4. Use a high temperature of 175 degrees to cure the silicone oil.
[0027] 5. Relax and heat-set, then cut off and pack into storage.
[0028] The PET and PBT are Sinopec Yizheng chemical fiber spinning grade semi-dull varieties;
[0029] Step 2 Arrange a horizontal two-layer annular blowing system in the primary fiber crystallization area below the spinneret, blowing from...
Embodiment 2
[0034] 1. PET and PBT are selected from Sinopec Yizheng chemical fiber spinning grade semi-dull varieties, and the composite ratio PET:PBT is 5:5 according to the weight percentage;
[0035] 2. PET and PBT enter the composite assembly through their respective screw extruders. After the two materials are combined, they are sprayed out from the C-shaped spinneret hole, cooled and formed by the ring blowing, and then enter the winding silk barrel;
[0036] 3. The silk in the silk barrel is stretched and siliconized after being bundled, cut off and sent to the drying and setting machine;
[0037] 4. Use a high temperature of 175 degrees to cure the silicone oil.
[0038] 5. Relax and heat-set, then cut off and pack into storage.
[0039] The PET and PBT are Sinopec Yizheng chemical fiber spinning grade semi-dull varieties;
[0040] Step 2 Arrange a horizontal two-layer annular blowing system in the primary fiber crystallization area below the spinneret, blowing from the center t...
Embodiment 3
[0045] 1. PET and PBT are respectively selected from Sinopec Yizheng chemical fiber spinning grade semi-dull varieties, and the composite ratio PET:PBT is 4:6 according to the weight percentage;
[0046] 2. PET and PBT enter the composite assembly through their respective screw extruders. After the two materials are combined, they are sprayed out from the C-shaped spinneret hole, cooled and formed by the ring blowing, and then enter the winding silk barrel;
[0047] 3. The silk in the silk barrel is stretched and siliconized after being bundled, cut off and sent to the drying and setting machine;
[0048] 4. Use a high temperature of 175 degrees to cure the silicone oil.
[0049] 5. Relax and heat-set, then cut off and pack into storage.
[0050] The PET and PBT are Sinopec Yizheng chemical fiber spinning grade semi-dull varieties;
[0051] Step 2 Arrange a horizontal two-layer annular blowing system in the primary fiber crystallization area below the spinneret, blowing from...
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