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Process for producing same-plate two-tone superfine composite draw textured yarns

A processing technology and a technology of texturizing yarn, which is applied in the direction of conjugated synthetic polymer rayon, rayon manufacturing, filament/thread forming, etc., which can solve the problems of product quality damage, difficulty in dyeing dark colors, and cost increase , to achieve the effect of shortening the production process, eliminating the post-dyeing process and improving product quality

Active Publication Date: 2016-08-31
ZHEJIANG GUXIANDAO INC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Sea-island microfibers have many excellent properties and uses as above, but also have the following disadvantages: ①It is not easy to dye dark colors: due to the thin fibers and large specific surface area of ​​sea-island microfibers, the color rendering efficiency of dyes is low, that is, poor color rendering
This two-step method of plying strands and wires needs to go through the process of unwinding, network compounding, and rewinding, which has disadvantages such as long process flow, damaged product quality, and increased costs.

Method used

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  • Process for producing same-plate two-tone superfine composite draw textured yarns
  • Process for producing same-plate two-tone superfine composite draw textured yarns
  • Process for producing same-plate two-tone superfine composite draw textured yarns

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] This embodiment is a processing technology of two-color stretched yarn on the same board. The intrinsic viscosity of the sea component COPET (according to GB / T 14190-2008, with phenol and tetrachloroethane 1:1 as solvent for detection) is 0.70dl / g, the moisture content of dry slices is less than 50ppm, the temperature of each zone of the screw is 260-280°C; the intrinsic viscosity of island component 1 (PET-3) is 0.685dl / g, the moisture content of dry slices is less than 50ppm, and the temperature of each zone of the screw is 270-290°C The intrinsic viscosity of the island component 2 (PET-1) is 0.685dl / g, the moisture content of the dry chip is less than 50ppm, the black masterbatch is added 6wt%, and the temperature of each zone of the screw is 270-290°C.

[0030] The ratio of the sea to the island is 30:70, the temperature of the sea / island spinning box is 270 / 285°C respectively, the side blowing wind speed is 0.4m / s, and the winding speed is 2800m / min, and the black...

Embodiment 2

[0032] The setting and working principle of this embodiment are the same as those of Embodiment 1, the difference is that: 9wt% of black color masterbatch is added, and the ratio of sea and island is 25:75. The temperature of the sea / island spinning box is 275 / 290°C, the wind speed of side blowing is 0.5m / s, and the winding speed is 3000m / min, and the black and white sea island POY of 350dtex / 36f×37i is produced. Example 3

Embodiment 3

[0033] The setting and working principle of this embodiment are the same as those of Embodiment 1, the difference is that: 12wt% of black color masterbatch is added, and the ratio of sea to island is 25:75. The temperature of the sea / island spinning box is 275 / 290°C, the wind speed of side blowing is 0.5m / s, and the winding speed is 3000m / min, and the black and white sea island POY of 350dtex / 36f×37i is produced. Example 4

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Abstract

The invention relates to a process for producing same-plate two-tone superfine composite draw-textured yarns, and belongs to the technical field of filament yarns production. An alkali-soluble copolyester is used as a sea component, while PET-1 and PET-3 are used as island components; both the sea and island components are fed into a three-component composite spinning manifold and a specially designed spinneret pack after being subjected to screw extruding and melting, conveying and metering, respectively; a two-tone seal-island composite melt is jetted from the left and right sides of a same spinneret plate, respectively, and then cooled, oiled and wound to obtain two-tone sea-island polyester pre-oriented yarns; afterwards, the two-tone sea-island polyester pre-oriented yarns are subjected to a draw texturing procedure to obtain two-tone sea-island polyester draw textured yarns (DTY). The process for producing same-plate two-tone superfine composite draw-textured yarns is applied to production of sea-island yarns, and has the advantages of short production procedure, good product quality, energy conservation, environmental protection and the like.

Description

technical field [0001] The invention relates to a processing technology of double-color ultra-fine composite stretched yarn on the same board, and belongs to the technical field of filament production. Background technique [0002] Compared with ordinary fibers, sea-island superfine fibers 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, imitation fabrics, etc. The production of jeanette, microfiber leather base cloth, high-density waterproof fabric, high-performance cleaning cloth, and high-performance suction filter material has become a product with high added value. Sea-island microfibers have many excellent properties and uses as above, but also have the following disadvantages: ①It is not easy to dye dark colors: due to the thin fibers and large specific surface area of ​​sea-island microfibers, the color rende...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/14D01F1/10D01D5/08D01D5/088D01D5/096D01D5/12D01D5/30D01D10/02
CPCD01D5/08D01D5/088D01D5/096D01D5/12D01D5/30D01D10/02D01F1/10D01F8/14
Inventor 沈国光王秀华李为民袁建友
Owner ZHEJIANG GUXIANDAO INC CO
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