Chinlon 6 section for bromochlorodifluoromethane (BCF) carpet yarn and preparation method thereof

A carpet yarn and slicing technology, which is applied in the manufacture of rayon, single-component polyamide rayon, chemical characteristics of fibers, etc., can solve the problems of increasing production cost, short residence time, reducing production efficiency, etc., and achieves improved thermal stability. stability, increase stability, reduce effects of preparation steps

Inactive Publication Date: 2013-11-27
JIANGSU HAIYANG CHEM FIBERS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] ⑴Because there is a stage of making master batches, which involves secondary melting, it will cause partial degradation or oxidation of raw materials, affect the quality of raw materials, increase spinning breakage, reduce production efficiency, and increase production costs
[0007] (2) Heat stabilizers, antioxidants and other additives are added in the screw, the residence time of the additives in the molten material is short, the dispersion is not uniform enough, the dispersion effect with the chips is not ideal, and the modification function cannot be fully exerted
[0008] (3) The number of amino groups at the end of the slice is unstable, and the dyeing uniformity and color fastness of BCF carpet yarn are average

Method used

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  • Chinlon 6 section for bromochlorodifluoromethane (BCF) carpet yarn and preparation method thereof
  • Chinlon 6 section for bromochlorodifluoromethane (BCF) carpet yarn and preparation method thereof

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preparation example Construction

[0026] The present invention is a nylon 6 slice used for BCF carpet yarn, which is made of the following raw materials in weight ratio: 99-100% caprolactam, 0.02-1% additive A, 0.02-1% additive B, modified 0.05-0.6% of neutralizing agent, 0-0.5% of matting agent; the sum of the weight percentages of each component is 100%. The preparation method of the slice has the following steps:

[0027] 1) Solution preparation of additive A

[0028] Dissolve additive A in 100-80% molten caprolactam or caprolactam aqueous solution, stir and disperse to make 2-30% molecular weight modifier dispersion;

[0029] 2) Solution preparation of additive B

[0030] Dissolve additive B in 100-80% molten caprolactam or caprolactam aqueous solution, stir and disperse to make 1-30% molecular weight modifier dispersion;

[0031] 3) Preparation of modifier solution

[0032] Dissolve the modifier in 100-50% caprolactam or caprolactam aqueous solution, stir and disperse to make a 2-50% modifier solution ...

Embodiment 1

[0043] The weight of each component of the raw material used in the present embodiment nylon 6 slice is:

[0044]

[0045] Has the following steps:

[0046] 1) Solution preparation of additive A

[0047] Dissolve 5.5kg of terephthalic acid in 94.5kg of 80% caprolactam aqueous solution, stir and disperse to make a 5% solution by weight;

[0048] 2) Solution preparation of additive B

[0049] Dissolve 1.1 kg of hexamethylenediamine in 18.9 kg of 80% caprolactam aqueous solution, stir and disperse to make a 5% solution by weight;

[0050] 3) Preparation of modifier solution

[0051] Dissolve 1.1kg of 4-amino-2,2,6,6-tetramethylpiperidine in 9.9kg of molten caprolactam, stir and disperse to make a 10% solution by weight;

[0052] 4) Preparation of titanium dioxide dispersion

[0053]The composition of titanium dioxide, liquid caprolactam and water is prepared according to the ratio of 3.3kg:10kg, then stirred at 10-50°C for 0.5-5 hours, circulated and filtered, and then pu...

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Abstract

The invention discloses a chinlon 6 section for a bromochlorodifluoromethane (BCF) carpet yarn and a preparation method thereof. The chinlon 6 section is prepared from the following raw materials in percentage by weight: 99-100% of caprolactam, 0.02-1% of additive A, 0.02-1% of additive B, 0.05-0.6% of modifierand 0-0.5% of delustering agent; and the sum of the weight percents of all components is 100%. The preparation method of the section comprises the following steps: 1) preparation of solution of the additive A; 2) preparation of solution of the additive B; 3) preparation of modifier solution; 4) preparation of delustering agent dispersion liquid; 5) continuous polymerization; 6) extraction; and 7) drying. Compared with of the traditional section, the chinlon 6 section manufactured by the invention has the advantages the heat stability, the light stability and the dyeability are improved; the preparation step in a spinning process is reduced; the spinning stability, and the dyeability and the light stability of the BCF carpet yarn are improved; and the chinlon 6 section is especially suitable for production of the BCF carpet yarn.

Description

Technical field [0001] The invention relates to a nylon 6 slice used for BCF carpet yarn and a preparation method thereof. Background technique [0002] Nylon 6 is one of the earliest synthetic fibers to be industrialized. As early as 1942, FARBE in Germany built the first nylon 6 production line. For decades, the nylon 6 industry has experienced tremendous development. At present, nylon 6 is mainly used in four areas: textile filaments, industrial filaments, engineering plastics and BCF carpet filaments. [0003] Carpets were almost all made of wool before the invention of synthetic fibers. This is due to its good resilience, but the wear resistance of wool is average. Because nylon 6 has good wear resistance, resilience and other performance characteristics, Compared with other synthetic fibers such as polypropylene and polyester, nylon BCF carpet yarn is often used to produce high-grade carpets. [0004] At present, the method of using nylon 6BCF filament raw materials ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G69/16C08K9/06C08K9/00C08K3/22D01F6/90D01F1/10
Inventor 沈家广黄桂根孔令根王琳刘茂华
Owner JIANGSU HAIYANG CHEM FIBERS
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