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One-step pattern different dyeing cool composite fiber and preparation method thereof

A composite fiber and color technology, applied in fiber processing, conjugated synthetic polymer artificial filament, filament/thread forming, etc., can solve the problem of increased fiber wool, broken ends, decreased fiber spinnability, and difficult heat conduction paths Formation and other problems, to achieve the effect of high breaking strength, obvious cooling effect, and meet individual needs

Active Publication Date: 2017-09-22
CTA HIGH TECH FIBER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of fiber needs to be added with nano-scale cool-feeling functional powder during the preparation process, and the nano-scale cool-feeling functional powder is very easy to agglomerate in the polymer matrix and cannot be dispersed evenly, which increases the fiber spinning process. The wool and broken ends of the fiber will significantly reduce the spinnability of the fiber, which will have a negative impact on the physical and mechanical properties of the fiber.
In addition, the cooling functional powder is dispersed in the polymer matrix, and the addition amount is very small, generally around 1%-5%. It is difficult to form a heat conduction path, and the cooling effect is very limited.

Method used

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  • One-step pattern different dyeing cool composite fiber and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) Add the polyethylene slices of the polyethylene slice skin layer and the polyamide slices of the polyamide slice core layer into the A and B feed bins of the composite spinning machine respectively, and enter the dryer for drying. The water content of the polyethylene slices reaches below 20ppm, The water content of polyamide slices is below 200ppm;

[0031] The dried polyethylene chips and polyamide chips are respectively fed into the screw extruder for heating and plasticizing. The plasticizing temperature of polyethylene chip screw extrusion is 168°C-175°C, and the plasticizing temperature of polyamide chip screw extrusion is 253 ℃-260℃;

[0032] After polyethylene chips and polyamide chips are melted and plasticized by the screw, they are metered by two metering pumps according to the weight ratio of 30:70, and the melts are extruded into the same composite component to form the cross-sectional structure required by the design, and then pass through the spinnere...

Embodiment 2

[0036] On the basis of Example 1, the plasticizing temperature of polyethylene chip screw extrusion was changed to 210° C.-220° C., the draw ratio was 2.94, and other process parameters and conditions were the same as in Example 1.

[0037] The obtained one-step color-differentiated cool-feeling composite fiber has a cortex structure with a bare core layer in the length direction of the fiber, and the length of the structure in the length direction of the fiber is 1-10 mm, and every two adjacent The spacing between the structures is 1-10mm, the linear density is 70D, the breaking strength is 4.21cN / dtex, the elongation at break is 59.02%, and the Q-max of contact cold and warm feeling is 0.268, which has obvious contact cold feeling. The performance can well meet the requirements of use.

Embodiment 3

[0039] On the basis of Example 2, only the weight ratio of polyethylene chips and polyamide chips was changed to 40:60, and other process parameters and conditions were the same as in Example 2.

[0040]The obtained one-step color-differentiated cool-feeling composite fiber has a cortex structure with a bare core layer in the length direction of the fiber, and the length of the structure in the length direction of the fiber is 1-10 mm, and every two adjacent The distance between the structures is 1-10mm, the linear density is 70D, the breaking strength is 4.05cN / dtex, the elongation at break is 65.23%, and the Q-max of contact cold and warm feeling is 0.249, which has a relatively obvious contact cold feeling. The performance can well meet the requirements of use.

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Abstract

The invention belongs to the technical field of textiles, and particularly relates to a one-step pattern different dyeing cool composite fiber and a preparation method thereof. The one-step pattern different dyeing cool composite fiber is of an incomplete covered skin core structure; the incomplete covered skin core structure comprises an inner first polymer core layer with moisture absorption and sweat releasing functions and a second polymer skin layer with heat conduction and dissipation functions. The one-step pattern different dyeing cool composite fiber achieves a cool and dry composite excellent effect, and the wearing comfortableness is greatly improved. Furthermore, the one-step pattern different dyeing cool composite fiber is prepared through a one-step method, and can achieve a special effect with irregular patterns or sesame points after being dyed without post-processing. Therefore, the technological process is simplified, and the personality demand of people is also met.

Description

technical field [0001] The invention belongs to the technical field of textiles, and in particular relates to a one-step color-differential dyeing cool feeling composite fiber and a preparation method thereof. Background technique [0002] With the continuous improvement of modern living standards, people's pursuit of life comfort is getting higher and higher, and the pursuit of clothing comfort and functionality has become a fashion trend, especially in the hot summer, everyone naturally hopes to wear more refreshing , more cool. In addition, from the perspective of environmental protection, the clothing fabrics of environmental protection and low-carbon economy are also widely recognized by people. Therefore, a variety of functional clothing fibers and their products that can maintain a cool feeling have emerged as the times require, which can not only bring people a cool wearing comfort in hot summer, but can even obtain coolness without the help of low air-conditioning ...

Claims

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Application Information

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IPC IPC(8): D01F8/12D01F8/06D01D5/34
Inventor 许志强袁聪慧王勇黄芽詹莹韬钱浩李顺希占海华吕利川贺利娟王浪范立峰
Owner CTA HIGH TECH FIBER
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