Flame-retardant polyester fiber, woven or knitted flame-retardant polyester fiber fabric, nonwoven flame-retardant polyester fiber fabric, and woven or knitted suede fabric

A flame-retardant polyester and knitted fabric technology, applied in the field of weaving and knitted fabrics, can solve the problems of reduced dyeing performance, reduced fiber hydrolysis resistance, poor hand feeling, etc.

Inactive Publication Date: 2002-03-27
TOYO TOYOBO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These main chain type methods still bring the following problems: due to the presence of phosphorus atoms in the polyester main chain, the hydrolysis resistance of the fiber is reduced; due to the high crystallinity of the polymer, the dyeing performance is reduced; and by this fiber The processed fabric has poor hand feeling, etc.
[0011] And this kind of product that has been treated on the back feels bad
At present, it is still impossible to obtain warp polyester knitted fabrics with good flame retardancy and hand feeling

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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  • Flame-retardant polyester fiber, woven or knitted flame-retardant polyester fiber fabric, nonwoven flame-retardant polyester fiber fabric, and woven or knitted suede fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0133] Terephthalic acid as a carboxylic acid component, ethylene glycol as a glycol component and the aforementioned phosphorus-containing compound are copolymerized to obtain a phosphorus-atom-containing copolyester with a phosphorus atom content of 6000 ppm. At a spinning temperature of 262°C and a shear rate of 6010s -1 , the winding speed is 1450m / min, and the distance from the surface of the spinneret to the outlet of the cooling air is 65mm, the obtained polyester is melt-spun, and then the fiber is stretched 2.79 times under traditional conditions to obtain 167dtex, 48 long Whole yarn of silk. The resulting yarn is made into a circular knit and then subjected to a laundering treatment. After air-drying, dye with disperse dye (Dianix Black BG-FS200; DyStarJapan) for 60 minutes, dyeing conditions: dye liquor ratio is 1:50, dye density is 20% (calculated by fabric weight), and temperature is 130°C. After dyeing, the lightness (L*) can be measured with a colorimeter and ...

Embodiment 2

[0135] Same as embodiment 1, just change the shear rate to 4307s -1 , the winding speed is changed to 1300m / min, and the draw ratio is changed to 2.88 times to obtain 56dtex, 24 filaments, and the fabric obtained from the yarn. The obtained fabrics have very good dyeing properties and light fastness, not to mention flame retardancy. The abrasion resistance of its yarn is also very good (see Table 1).

Embodiment 3

[0137] The same way as in Example 1, just change the shear rate to 3676s -1 , the winding speed is changed to 3000m / min, the distance from the surface of the spinneret to the cooling air outlet is changed to 35mm, and the draw ratio is changed to 1.67 times, and the whole yarn of 84dtex and 24 filaments is obtained by spinning-drawing method, and thus Yarn obtained fabric. The obtained fabrics have very good dyeing properties and light fastness, not to mention flame retardancy. The abrasion resistance of its yarn is also very good (see Table 1). Example 4

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Abstract

A flame-retardant polyester fiber containing a phosphorus compound copolymerized polyester satisfying the following formulas (1)-(3) and having a phosphorus atom content of 500-50,000 ppm: (formula 1) tan delta max >= 0.1740 , (formula 2) T alpha - 3.77 x 1n (dtpf) <= 137.0; (formula 3) 1.331 <= SG - DELTA n DIVIDED 8.64 <= 1.345 wherein tan delta max is the maximum value of loss tangent in a dynamic viscoelasticity measurement, T alpha is a temperature at which loss tangent reaches the maximum, dtpf is single fiber fineness (dtex), SG is density (g/cm<3>), and DELTA n is birefringence, particularly a flame-retardant polyester fiber showing an L value of not less than 67 and a b value of not more than 10.00 as measured with a Hunter's color-difference meter, a flame-retardant polyester woven, knitted fabric using this flame-retardant polyester fiber at least in a part thereof, and a suede raised woven, knitted fabric which is a raised woven, knitted fabric obtained by applying a raising treatment to this flame-retardant polyester woven, knitted fabric, which has a coefficient of friction of a surface of the woven and knitted fabric by a surface tester KES-FB4 of 0.200-0.300. By this constitution, a flame-retardant polyester fiber, a woven, knitted fabric, a nonwoven fabric and a suede raised woven, knitted fabric superior in dyeing property and mechanical property such as abrasion resistance, heat stability and the like, can be provided, which have extremely fine whiteness, a soft feeling and flame retardancy stable over a long period of time.

Description

technical field [0001] The invention relates to a flame-retardant polyester fiber, which has excellent dyeing performance, high light color fastness, good wear resistance and thermal stability, and also has very high whiteness; it also relates to the fiber The obtained cloth and piled woven and knitted fabrics. Background technique [0002] Compared with other synthetic fibers, polyester fibers are widely used due to their advantages of easy processing and low price. On the other hand, due to its relatively dense molecular structure, hydrophobicity and very uniform fiber surface, it is not as good as natural fibers in terms of fiber feel and functionality. In terms of dyeing performance, polyester needs to be dyed under high temperature and high pressure conditions, otherwise, the dye cannot enter the interior of the polyester molecule, and the polyester cannot be dyed to a sufficient coloring density. This is a limitation of the existence of polyester fibers. defect. [...

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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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/692D01F6/84D03D15/00D03D15/12D04H1/42
CPCD10B2503/06D10B2321/021D04H1/42D03D15/12D10B2505/08D10B2501/041D01F6/84D10B2503/04D10B2331/02D10B2501/043D03D15/00D10B2331/04D03D1/0041D10B2503/03D10B2505/18D10B2503/02D10B2401/14C08G63/6926D04H1/435D03D15/513D03D15/573D03D15/283
Inventor 松田全央佐藤万纪形舞祥一吉田文和奥原宗和道家隆竹内秀夫清水宪治
Owner TOYO TOYOBO CO LTD
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