Split-lobe type high-contraction polyamide composite fully drawn yarn and preparation method thereof
A fully drawn yarn and high shrinkage technology, which is applied in the direction of conjugated synthetic polymer artificial filament, melt spinning, filament/thread forming, etc., can solve the problem of fabric hand feeling, difficulty in improving comfort, inability to use independently, polyester Ester fiber has no problems such as elasticity, and achieves the effect of smooth hand feeling, easy handling and easy elasticity
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[0024] Example 1
[0025] A split-lobed high-shrinkage nylon composite full-drawn yarn, the split-lobed high-shrinkage nylon composite full-stretched yarn is a bicomponent composite fiber compounded by a high-shrinkage component and a nylon component, and the cross-section is split-lobed shape, the weight percentage of the high shrinkage component is 62.5%, and the nylon component is the balance.
[0026] The slice intrinsic viscosity of the high shrinkage component is 0.7~1.0dl / g, the slice intrinsic viscosity of the nylon component is 0.4~0.6dl / g, and the viscosity difference between the high shrinkage component and the nylon component is between 0.2~1.2.
[0027] A preparation method of split-valve high-shrinkage nylon composite full-drawn yarn, comprising the following steps:
[0028] (1), take high shrinkage dry slice 150kg as the first raw material, enter the first material continuous drying tower, make the high shrinkage dry slice with moisture content<50ppm, enter the...
Example Embodiment
[0036] Example 2
[0037]A split-lobed high-shrinkage nylon composite full-drawn yarn, the split-lobed high-shrinkage nylon composite full-stretched yarn is a bicomponent composite fiber compounded by a high-shrinkage component and a nylon component, and the cross-section is split-lobed shape, the weight percentage of the high shrinkage component is 55%, and the nylon component is the balance.
[0038] The slice intrinsic viscosity of the high shrinkage component is 0.7~1.0dl / g, the slice intrinsic viscosity of the nylon component is 0.4~0.6dl / g, and the viscosity difference between the high shrinkage component and the nylon component is between 0.2~1.2.
[0039] A preparation method of split-valve high-shrinkage nylon composite full-drawn yarn, comprising the following steps:
[0040] (1), take high shrinkage dry slice 110kg as the first raw material, enter the first material continuous drying tower, make the high shrinkage dry slice with moisture content<50ppm, enter the me...
Example Embodiment
[0048] Example 3
[0049] A split-lobed high-shrinkage nylon composite full-drawn yarn, the split-lobed high-shrinkage nylon composite full-stretched yarn is a bicomponent composite fiber compounded by a high-shrinkage component and a nylon component, and the cross-section is split-lobed shape, the weight percentage of the high shrinkage component is 65%, and the nylon component is the balance.
[0050] The slice intrinsic viscosity of the high shrinkage component is 0.7~1.0dl / g, the slice intrinsic viscosity of the nylon component is 0.4~0.6dl / g, and the viscosity difference between the high shrinkage component and the nylon component is between 0.2~1.2.
[0051] A preparation method of split-valve high-shrinkage nylon composite full-drawn yarn, comprising the following steps:
[0052] (1), take high shrinkage dry slice 130kg as the first raw material, enter the first material continuous drying tower, make the high shrinkage dry slice with moisture content<50ppm, enter the m...
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