Polyytrimethylene terephthalate fiber cross-blended yarn and its production process

A technology of polyester fiber and production process, which is applied in the field of polytrimethylene terephthalate fiber blended yarn and its production process, which can solve the uncontrollable quality of short fibers, the absence of blended short fiber yarn, and the difficulty of production in textile factories, etc. problem, to achieve the effect of good feel and simulated feeling

Inactive Publication Date: 2006-05-10
SHANGHAI NO 17 COTTON TEXTILE MILL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are very few domestic chemical fiber enterprises that can develop and produce PTT staple fibers, and all of them are made of imported particles, and the elasticity and high elongation of PTT are multiples of conventional polyester, making the quality of staple fibers uncontrollable. The subsequent process of processing PTT raw materials produced by domestic enterprises into yarns and fabrics has brought great difficulties to textile mills in production
In addition, although foreign companies have used PTT raw materials to process reports and real objects into fabrics, they are all processed from filaments, and there are no examples of using PTT raw materials to process blended spun yarns.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] Example 1 Production 32 s PTT polyester staple fiber and cotton knitting blended yarn as an example

[0009] Raw materials: 1. PTT: 1.67dtex*38mm.

[0010] 2. JC cotton: grade 2.2, main body length 29mm.

[0011] The blending ratio is: PTT polyester / JC cotton, 65 / 35.

[0012] Routing:

[0013] PTT: Cotton grabbing machine-opening machine-lapping machine-carding machine-pre-combining-

[0014] JC: Cotton plucking machine-opener-lapping machine-carding machine-drawing frame-sliver coiling machine-combing machine-after the combination of the two-mixed head-mixed 2-mixed-mixed 3-dried-roving- spun yarn.

[0015] Process parameters

[0016] The blending of PTT and combed cotton adopts the method of drawing and blending. For PTT staple fiber, it is required that the best form of blowing blower for pre-spinning is comb needle, and the relative humidity of blowing should be high, preferably 85%-90%. Card clothing should be kept in good condition. The cylinder sho...

Embodiment 2

[0018] Example 2 Production 32 s PTT polyester staple fiber and cotton knitting blended yarn as an example

[0019] Raw material: PTT polyester and JC cotton.

[0020] The blending ratio is: PTT polyester / JC cotton, 40 / 60.

[0021] Routing:

[0022] PTT: Cotton grabbing machine-opening machine-lapping machine-carding machine-pre-combining-

[0023] JC: Cotton plucking machine-opener-lapping machine-carding machine-drawing frame-sliver coiling machine-combing machine-after the combination of the two-mixed head-mixed 2-mixed-mixed 3-dried-roving- spun yarn.

[0024] Process parameters

[0025] Same as Example 1, the blending of PTT and combed cotton adopts the method of drawing and mixing. Among them, the cylinder uses card clothing model 2510, and the doffer uses 4030. The basis weight of the roving was 5.2g / 10m. The twist coefficient of the roving is controlled at 80-85, the twist coefficient of the spun yarn is controlled at 320-340, and the number of mixed fibers af...

Embodiment 3

[0028] Example 3 Production 32 s Example of knitting blended yarn of PTT polyester staple fiber and modal fiber

[0029] The blending ratio is: PTT polyester / modal, 70 / 30 specification.

[0030] Routing:

[0031] (PTT / Modal) Mixing box - plucking machine - cotton opener - coiler - carding machine - head parallel - two parallel - roving - spun yarn.

[0032] Process parameters

[0033] Similar to Example 1, this type of cellulose fiber blending, in principle, adopts cotton box mixing, and the key point of spinning is to control the neps well. Drafting top rollers are recommended to use soft top rollers to enhance grip. Considering the large difference in elongation between PTT and Modal, the tension of each channel should be kept as small as possible, and the channels of each process should always be kept clean.

[0034] The roving twist coefficient is controlled at 80-85, and the spun yarn twist coefficient is controlled at 310-330.

[0035] Yarn quality indicators: bre...

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PUM

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Abstract

This invention relates to the polyterephthalic acid propane diols ester fibre mixing spinning and its production technology. This invention includes output and method. And this product is spinned by the following steps: spinning with the PPT polyster short fibre and cotton, spinning with the PPT polyster short fibre and mucilage glue, modal, Lyocell, tencel knitted fabric fiber; spinning with the PPT polyster short fibre and wool, pashm, knitted fabric fibre. This technology uses the conventional device of the national cotton factory, wherein the clear cotton is the best as the comb pin; and the relative humidity of the clear cotton should be high; the clear cotton of the comb cotton should be kept well; and in the drafting and roving working procedure, it needs a higher humidity and not high temperature; the ration of the roving should be controlled in a fit mount; the twist modulus is to be 280-340ú¼ the combined roots should be 6 as its best. The product in this invention has a better handle and simulating characteristic.

Description

technical field [0001] The patent of the present invention relates to the spinning process in textile engineering, which refers to the blended yarn of polytrimethylene terephthalate fiber and its production process. Background technique [0002] PTT is polytrimethylene terephthalate, which is a kind of polyarylate resin, which is formed by polycondensation of 1, 3-propylene glycol (PDO) and terephthalic acid. PTT fiber has excellent softness, low temperature dyeability (lower than PET), bulkiness and elasticity, has broad application prospects, and is predicted to become a large-scale fiber in the 21st century. The R&D and production of PTT polyester staple fiber is the research direction of some chemical fiber enterprises dedicated to the research of new modified polyester in the past two years, because the physical and mechanical indicators and performance of PTT fiber are better than those of PET. The successful development of this staple fiber will gradually replace the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D02G3/04
Inventor 忻赛君何敏珠胡斌珍孙凤
Owner SHANGHAI NO 17 COTTON TEXTILE MILL
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