Composite processed filament and processing method thereof

A technology of composite processing and polyester multifilament, which is applied in the field of processed yarn, and can solve the problems of insufficient texture and separation of staple fiber yarns

Inactive Publication Date: 2005-06-29
TORAY FIBER RES INST(CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such interlaced yarns overemphasize the style of one of the silks, and it is difficult to obtain a style that combines two completely different properties of softness and dryness. In addition, because short fibers are only express...

Method used

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0015] (1) Take the polyester multifilament (PA) with a monofilament fineness ≥ 1.5dtex (example 1.5dtex, 2.3dtex, 4.2dtex) after drafting as the material constituting the core filament, and take the monofilament fineness after drafting ≤ 0.8 The polyester multifilament (PB) of dtex (eg 0.8dtex, 0.6dtex, 0.4dtex) is used as the material constituting the sheath filament, and the elongation difference between the material of the core filament and the material of the sheath filament: EPB-EPA≥ 10% (example 10%, 20%, 35%); wherein EPA is the elongation at break of the core wire material, and EPB is the elongation at break of the sheath wire material;

[0016] (2) After paralleling the two polyester multifilaments in step (1), the ratio TB / TA of the untwisting tension (TB) to the twisting tension (TA) ≥ 1.0 (example 1.0, 1.05, 1.1) Under the same conditions, drafting and false twisting are carried out at the same time to obtain the product.

[0017] When performing drafting and fal...

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PUM

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Abstract

The invention discloses a composite processing yarn and a preparation method thereof. The core yarn is composed of polyester multifilament, the sheath yarn is composed of ultrafine polyester multifilament, and the polyester multifilament constituting the core yarn has a monofilament fineness of ≥1.5 after being drawn. dtox, the polyester multifilament constituting the sheath filament after drawing has a monofilament fineness ≤ 0.5dtox, and the length difference between the sheath filament and the core filament is 2-10%. The preparation method includes doubling two kinds of polyester multifilaments, drawing and false twisting at the same time under the condition that the ratio of untwisting tension TB to twisting tension TA TB/TA≥1.0 to obtain the product. The product obtained by the present invention has the fluffy feeling, soft feeling, dry loose feeling and moderate tension of staple fiber style.

Description

Technical field: [0001] The invention relates to a processed yarn, which is a sandwich or core-spun yarn processed yarn. Background technique: [0002] With the recent development trend, there is a great demand for knitted fabrics with excellent light weight and super long cotton style among the products with both function and style. Correspondingly, ultra-fine polyester multifilament or sea island Type, split type and other ultra-fine composite yarns are used as sheath yarns, and high-shrinkage yarns are used as core yarns to obtain intertwined mixed fiber yarns. Compared with natural ultra-long cotton spun yarns, these multifilament yarns lack the softness and bulkiness of fluffiness, and at the same time, the production cost becomes high due to the forced generation of fluff in the raising process during finishing after dyeing. At the same time, the obtained hairiness will be concentrated on the surface of the fabric, so it is relatively lacking in giving spun yarns a un...

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): D02G3/36
Inventor 前川明弘谷口敦陈卫华
Owner TORAY FIBER RES INST(CHINA) CO LTD
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