A kind of production method of two-color wool-like polyester fiber

A production method, wool polyester technology, applied in fiber processing, single-component copolyester rayon, filament/thread forming, etc., can solve the problem of reduced surface fiber differential shrinkage, high shrinkage FDY shrinkage loss, Fleece is easy to lodging and other problems, to achieve good wool-like effect and good shrinkage effect

Active Publication Date: 2021-03-02
ZHEJIANG HENGYI PETROCHEMICAL RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The Chinese Patent Office discloses a method for preparing a new type of wool-like differentiated fiber. The publication number is CN 101845697A. The patent for this invention uses polytrimethylene terephthalate (PTT) pre-oriented yarns to be texturized on a single-strand texturing machine. Compound the modified high-shrinkage FDY between the second roller and the second heat box to form a wool-like fiber, but only PTT floats on the surface of the fiber, and the color effect presented is relatively simple, and the fluff of the fabric is easy to fall after sanding, and the fabric is not thick enough full
After the fiber is processed, only the ultra-fine denier sea-island composite yarn floats on the surface, and the color effect presented is relatively single, and the fluff of the fabric is easy to fall after sanding, and the fabric is not thick and full.
Moreover, in the disclosed patent, the fibers of the three components are compounded between the two rollers and the two heat boxes, and after being compounded, they will be heated and shaped by the two heat boxes. The shrinkage rate of the high-shrinkage FDY in the core will have a greater loss, so the effect of different shrinkage with the surface fiber will be reduced

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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  • A kind of production method of two-color wool-like polyester fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Production of 340D / 360F two-color wool-like polyester fiber: monofilament A adopts 268dtex / 288f flat ordinary polyester pre-oriented yarn, monofilament fineness is 0.84dpf, strength is 2.5cn / dtex, and elongation is 138%; monofilament B adopts 270dtex / 48f flat cationic modified polyester pre-oriented yarn, monofilament fineness 5.0dpf, strength 2.2cn / dtex, elongation 135%; monofilament C adopts 64dtex / 24f circular section high-shrinkage FDY yarn, monofilament fineness It is 2.4dpf, the strength is 3.9cn / dtex, the elongation is 30%, and the boiling water shrinkage is 39.5%.

[0054] step:

[0055] 1) After merging monofilament A and monofilament B, they go through the drafting of one roller, the deformation of one hot box, the cooling of cooling plate, the false twisting of false twister (stacked disc type), the drafting of two rollers, and the second The shaping of the hot box.

[0056] 2) At the same time, the monofilament C is sequentially drawn by the zero roller, g...

Embodiment 2

[0068] Production of 180D / 192F two-color wool-like polyester fiber: monofilament A adopts 137dtex / 144f flat ordinary polyester pre-oriented yarn, monofilament fineness is 0.86dpf, strength is 2.2cn / dtex, and elongation is 135%; monofilament B adopts 133dtex / 36f flat cationic modified polyester pre-oriented yarn, single filament fineness 3.3dpf, strength 2.3cn / dtex, elongation 136%; raw material C uses 33dtex / 12f circular section high-shrinkage FDY filament, single filament fineness is 2.5dpf, strength 4.0cn / dtex, elongation 28%, boiling water shrinkage 38%.

[0069] step:

[0070] 1) After merging monofilament A and monofilament B, they go through the drafting of one roller, the deformation of one hot box, the cooling of cooling plate, the false twisting of false twister (apron type), the drafting of two rollers, and the second The shaping of the hot box.

[0071] 2) At the same time, the monofilament C is sequentially drawn by the zero roller, guided by the bypass yarn guid...

Embodiment 3

[0082] Embodiment 3 (fiber cross section is different)

[0083] Production of 340D / 360F two-color wool-like polyester fiber: Monofilament A adopts conventional polyester pre-oriented yarn with a circular cross-section of 265dtex / 288f, the monofilament fineness is 0.83dpf, the strength is 2.6cn / dtex, and the elongation is 136%; Yarn B adopts cationic modified polyester pre-oriented yarn with circular section of 273dtex / 48f, monofilament fineness is 5.1dpf, strength is 2.4cn / dtex, and elongation is 139%; monofilament C adopts circular section of 64dtex / 24f with high shrinkage FDY yarn, the single filament fineness is 2.4dpf, the strength is 3.9cn / dtex, the elongation is 30%, and the boiling water shrinkage is 39.5%.

[0084] step:

[0085] 1) After merging monofilament A and monofilament B, they go through the drafting of one roller, the deformation of one hot box, the cooling of cooling plate, the false twisting of false twister (stacked disc type), the drafting of two rollers...

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Abstract

The invention relates to the technical field of textile, and discloses a production method of a double-color wool-like polyester fiber. The production method includes the steps: 1) converging monofilaments A and monofilaments B, and sequentially performing drafting, deformation cooling, false twisting, drafting and sizing; 2) sequentially performing drafting and filament guiding on monofilaments C; 3) further compounding the monofilaments A, the monofilaments B and the monofilaments C at a wire stitching machine, and sequentially performing drafting, oiling and winding to obtain a finished product. The monofilaments A and the monofilaments B are provided with special-shaped section polyester pre-oriented yarns with different dyeing performances, and the monofilaments C are provided with circular section high-shrinkage polyester FDY filaments. A fabric woven by the double-color wool-like polyester fiber prepared by the method is post-treated and dyed, contraction effects are obvious, double-color effects are remarkable, lodging of fabric cannot be easily generated when the fabric is sanding, hand feeling is thicker and fuller, and wool-like effects are vivid.

Description

technical field [0001] The invention relates to the technical field of textiles, in particular to a production method of two-color wool-like polyester fibers. Background technique [0002] At present, the wool-like products of polyester fiber on the market are mostly composed of two or more "three different" polyester filaments of different deniers, different cross-sections, and different shrinkages. The largest market share is still POY in the spinning section. +FDY one-step co-spun blended yarn, this method is favored by many manufacturers because of its large output, less land occupation, less labor and low energy consumption, but this production method is not flexible enough compared to the two-step method , the two-step production can be compounded on the flat drawing machine, the texturing machine and the winding machine, the two-step production can realize the flexible combination of various raw materials to meet the different needs of customers, and the compounding o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D02J1/08D02J1/22D02G1/20D02G1/18D02G1/02D01D5/253D01F6/84
CPCD01D5/253D01F6/84D02G1/0206D02G1/18D02G1/20D02G1/205D02J1/08D02J1/22
Inventor 杨听仪
Owner ZHEJIANG HENGYI PETROCHEMICAL RES INST CO LTD
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