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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

Inactive Publication Date: 2015-10-14
SUZHOU LONGJIE SPECIAL FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, polyester fiber has no elasticity, so it is difficult to improve the fabric feel and comfort. In some occasions that require high elasticity, such as swimsuits and other products, it cannot be used independently

Method used

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  • Split-lobe type high-contraction polyamide composite fully drawn yarn and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A split-type high-shrinkage nylon composite full-drawn yarn, the split-type high-shrinkage nylon composite full-drawn yarn is a two-component composite fiber composed of a high-shrinkage component and a nylon component, and the cross-section is split. 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 fully drawn yarn, comprising the following steps:

[0028] (1) Take 150kg of high-shrinkage dry chips as the first raw material, enter the first material continuous drying tower, make high-shrinkage dry chips with a moisture content of <50ppm, and enter the melt extrusion of the...

Embodiment 2

[0037]A split-type high-shrinkage nylon composite full-drawn yarn, the split-type high-shrinkage nylon composite full-drawn yarn is a two-component composite fiber composed of a high-shrinkage component and a nylon component, and the cross-section is split. 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 fully drawn yarn, comprising the following steps:

[0040] (1) Take 110kg of high-shrinkage dry chips as the first raw material, enter the first material continuous drying tower, make high-shrinkage dry chips with a moisture content of <50ppm, and enter the melt extrusion of the fi...

Embodiment 3

[0049] A split-type high-shrinkage nylon composite full-drawn yarn, the split-type high-shrinkage nylon composite full-drawn yarn is a two-component composite fiber composed of a high-shrinkage component and a nylon component, and the cross-section is split. 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 fully drawn yarn, comprising the following steps:

[0052] (1) Take 130kg of high-shrinkage dry chips as the first raw material, enter the first material continuous drying tower, make high-shrinkage dry chips with a moisture content of <50ppm, and enter the melt extrusion of the f...

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Abstract

The invention discloses a split-lobe type high-contraction polyamide composite fully drawn yarn and a preparation method thereof. The fully drawn yarn is made of two-component composite fibers combining high-contraction components and polyamide components. The cross section is in the shape of a split lobe. The weight percentage of the high-contraction components is 55%-65% while the polyamide components account for the left percentage. The fully drawn yarn is a novel elastic composite fiber which is highly elastic without spandex. Problems of a difficulty in dyeing, excessive elasticity, complex weaving, unstable size of fabrics and aging in the use process of the spandex are solved. The fully drawn yarn has higher contraction performance, fineness and extension performance.

Description

technical field [0001] The invention relates to the technical field of textiles, in particular to a split-type high-shrinkage nylon composite fully drawn yarn and a preparation method thereof. Background technique [0002] The current elastic fiber is represented by spandex, but spandex has many deficiencies that need to be improved, such as chlorine bleaching after finishing, poor shaping, unstable elasticity, difficult to take care of, easy to foam, excessive elasticity, stuffy wearing, etc. DuPont has developed polytrimethylene terephthalate (PTT), which is a kind of elastic polyester fiber, which can partially replace spandex. However, due to the cost of raw material monomers and other reasons, it cannot be mass-produced at this stage. In addition, there are polybutylene terephthalate (PBT), etc., which have not yet reached the mass production requirements. Polyethylene terephthalate (PET) is currently the polyester fiber with the highest output, and it is also the chem...

Claims

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Application Information

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IPC IPC(8): D01D5/30D01D5/08D01D7/00D01D10/02D01F8/14D01F8/12
Inventor 刘虎易徐醒我关乐
Owner SUZHOU LONGJIE SPECIAL FIBER
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