Differential-shrinkage superfine composite draw textured yarn and processing technology thereof

A processing technology, iso-shrinkage technology, applied in the direction of conjugated synthetic polymer rayon, filament/thread forming, textile and papermaking, etc., can solve the problem of limited product variety, damage to fiber microstructure, and mechanical properties that cannot meet the needs of use and other problems, to achieve the effect of good mechanical properties and uniform structure

Inactive Publication Date: 2016-08-10
ZHEJIANG GUXIANDAO INC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] And the prior art such as application number is 032345356, and application number is 2008100636505 then forms superfine fiber by means of sea-island silk spinning method or water-soluble material characteristic, but this mode has special requirement to raw material, and its product variety is limited, and the fiber itself The microstructure is destroyed, and the mechanical properties cannot meet the needs of use

Method used

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  • Differential-shrinkage superfine composite draw textured yarn and processing technology thereof
  • Differential-shrinkage superfine composite draw textured yarn and processing technology thereof
  • Differential-shrinkage superfine composite draw textured yarn and processing technology thereof

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Embodiment 1

[0033] This embodiment is a processing technology of different shrinkage superfine composite stretched yarn. The intrinsic viscosity of the copolyester is 0.700dl / g, the melting point is 230°C, the moisture content of the dry slice is less than 50ppm, and the temperature of each zone of the screw is 250-270°C; nylon 6 The relative viscosity is 2.3, the moisture content of dry slices is less than 100ppm, and the temperature of each zone of the screw is 260-280°C.

[0034] The mass ratio of modified copolyester to nylon 6 is 30:70, and the cross-section of the fiber is hexagonal star (such as figure 1 shown), the spinning box temperature is 270°C, the side blowing wind speed is 0.4m / s, and the winding speed is 2800m / min, and the different shrinkage polyester nylon composite POY of 80dtex / 36f is obtained.

Embodiment 2

[0036] The settings and working principle of this embodiment are the same as those of Embodiment 1, the difference is that the intrinsic viscosity of the copolyester is 0.700dl / g, the melting point is 232°C, the moisture content of the dry chip is less than 50ppm, and the temperature in each zone of the screw is 250-270°C; 6 The relative viscosity is 2.3, the moisture content of dry slices is less than 100ppm, and the temperature of each zone of the screw is 260-280°C.

[0037] The mass ratio of modified copolyester to nylon 6 is 40:60, the cross-section of the fiber is hexagonal star shape, the temperature of the spinning box is 275°C, the wind speed of side blowing is 0.5m / s, and the winding speed is 3000m / min, and the obtained 160dtex / 36f different shrinkage polyester nylon composite POY.

Embodiment 3

[0039] The setting and working principle of this embodiment are the same as those of Embodiment 1, the difference is that the intrinsic viscosity of the copolyester is 0.700dl / g, the melting point is 234°C, the moisture content of the dry chip is less than 50ppm, and the temperature of each zone of the screw is 250-270°C; nylon 6 The relative viscosity is 2.3, the moisture content of dry slices is less than 100ppm, and the temperature of each zone of the screw is 260-280°C. .

[0040] The mass ratio of modified copolyester to nylon 6 is 50:50, the cross-section of the fiber is hexagonal star shape, the temperature of the spinning box is 280°C, the wind speed of side blowing is 0.6m / s, and the winding speed is 3200m / min, and 250dtex / 36f different shrinkage polyester polyamide composite POY.

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Abstract

The invention relates to a differential-shrinkage superfine composite draw textured yarn and a processing technology thereof, and belongs to the technical field of fiber generation. The processing technology comprises the following steps of using modified copolyester and nylon 6 as raw materials, respectively melting and extruding by a screw extrusion machine, sending into double-component composite spinning equipment and special spinneret holes, cooling the sprayed melt, applying oil, winding, and spinning; preparing a differential-shrinkage splittable pre-oriented yarn, and enhancing elasticity, so as to obtain the differential-shrinkage superfine composite draw textured yarn. The differential-shrinkage superfine composite draw textured yarn prepared by the processing technology is applied to the processing of suede, waterproof fabrics and the like, so that the final fabric has the advantages of stiffness, density, fullness and the like.

Description

technical field [0001] The invention relates to a different-shrinkage superfine composite stretched yarn and a processing technology thereof, belonging to the technical field of fiber generation. Background technique [0002] Composite spinning methods for preparing ultrafine fibers mainly include island-in-the-sea composite spinning and split-off composite spinning. Among them, split-type composite spinning is mainly polyester-nylon composite spinning, and the incompatibility of polyester and nylon is utilized. Under the action of subsequent alkali reduction or certain mechanical force, the fibers are opened to obtain ultra-fine denier fibers. Compared with ordinary fibers, microfibers have extremely small linear density and high specific surface area. The fabrics woven have the characteristics of high coverage, soft touch, comfortable wearing, and soft colors. They are widely used in suede and imitation peach skin. The production of velvet, microfiber leather base cloth, ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): D02G1/02D01D5/253D01D5/36D01F8/12D01F8/14
CPCD02G1/022D01D5/253D01D5/36D01F8/12D01F8/14
Inventor 沈国光王秀华李为民袁建友
Owner ZHEJIANG GUXIANDAO INC CO
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