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Process for dyeing ultra-high molecular weight polyethylene fibers

A polyethylene fiber, ultra-high molecular weight technology, used in dyeing, fiber processing, textiles and papermaking, etc., can solve the problems of cumbersome process conditions and single color

Active Publication Date: 2015-01-28
SHAOXING JINYU TEXITLE NEW TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to aim at the current dyeing of ultra-high molecular weight polyethylene fibers by adding pigment masterbatch and the like during spinning. This dyeing method has single color, complex process conditions when changing varieties, and requires a certain amount to carry out spinning. Silk dyeing processing and many other problems, the present invention provides a high dyeing rate, uniform dyeing, simple process, suitable for various colors, large batches or small batches of ultra-high molecular weight polyethylene fiber dyeing process

Method used

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  • Process for dyeing ultra-high molecular weight polyethylene fibers
  • Process for dyeing ultra-high molecular weight polyethylene fibers
  • Process for dyeing ultra-high molecular weight polyethylene fibers

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Embodiment 2

[0040] (1) Pretreatment process Pretreatment of ultra-high molecular weight polyethylene fibers. First, pre-shrink in the HT-S yarn steaming machine, the processing temperature is 110 ℃, and the processing time is 75 minutes. After pre-shrinking, the yarn is wound on the SSM precision winding machine, and the winding speed of the winding machine is 700 m / min, the tension is 0.8cN, and the overfeed rate is 2%.

[0041] After winding, install the cage, hang it into the pretreatment tank, enter the fiber surface treatment process, and treat the fiber surface with 80% (mass percent) sulfuric acid for 30 minutes.

[0042] The treated acid liquid is poured into the acid recovery tank, and recycled after purification. Add soft water to the pretreatment tank, neutralize to neutral with 6g / L 30% (mass percentage) NaOH, and then wash with soft water again.

[0043] (2) Disperse dyes are used in the dyeing process. Among them, the addition amount of Disperse Golden E-3R (100% strength...

Embodiment 3

[0051] (1) Pretreatment process Pretreatment of ultra-high molecular weight polyethylene fibers. First, pre-shrink in the HT-S yarn steaming machine, the processing temperature is 95 ℃, and the processing time is 120 minutes. min, the tension is 0.3cN, and the overfeed rate is 1%.

[0052] After winding, it is loaded into a cage, hoisted into the pretreatment tank, and enters the fiber surface treatment process. Treat the fiber surface with 50% (mass percent) nitric acid for 25 minutes.

[0053] The treated acid liquid is poured into the acid recovery tank, and recycled after purification. Add soft water to the pretreatment tank, neutralize it with 4g / L 30% (mass percentage) NaOH to neutral, and then wash it with soft water again after neutralization.

[0054] (2) The dyeing process uses disperse dyes. The dosage of disperse black KS (150% strength, Shanghai Jiepu Dyestuff Co., Ltd.) is 1.2% (o.w.f.), and disperse violet H-FRL (100% strength, Anhui Asia Bang Chemical Co., ...

Embodiment 4

[0059] (1) Pretreatment process Pretreatment of ultra-high molecular weight polyethylene fibers. First, pre-shrink in the HT-S yarn steaming machine, the treatment temperature is 110°C, and the treatment time is 75 minutes. The pre-shrunk yarn is wound on the SSM precision winder, and the winding speed of the winder is 800 m / min, the tension is 3.5cN, and the overfeed rate is 5%.

[0060] After winding, it is loaded into a cage, hoisted into the pretreatment tank, and enters the fiber surface treatment process. Treat the fiber surface with 95% (mass percent) sulfuric acid for 8 minutes.

[0061] The treated acid liquid is poured into the acid recovery tank, and recycled after purification. Add soft water into the pretreatment tank, neutralize to neutral with 10g / L 30% (mass percentage) NaOH, and then wash with soft water twice.

[0062] (2) Acid dyes are used in the dyeing process, the dosage of Acid Ulite Red S-GN (100% strength, manufacturer: Qingdao Shuangtao Fine Chemi...

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Abstract

The invention discloses a process for dyeing ultra-high molecular weight polyethylene fibers and belongs to the technical field of dyeing of textile materials. The process comprises the steps of pretreatment, dyeing and after treatment; the dyeing step is a step of adding a disperse dye or an acid dye into the pretreated fibers to carry out dyeing under the condition that a leveling agent and a carrier with puffing and plastifying effects exist; and after the dyeing step is finished, dye solution is rapidly drained, freeze water is immediately injected and the after treatment is carried out after treatment is carried out for 5 to 10 minutes. The process for dyeing the ultra-high molecular weight polyethylene fibers, which is disclosed by the invention, has the advantages of high dye-uptake, uniformity for dyeing, simple and convenient process and the like and can be applied to preparation of the colored ultra-high molecular weight polyethylene fibers.

Description

technical field [0001] The invention relates to a dyeing process of ultra-high molecular weight polyethylene fibers, belonging to the technical field of dyeing of textile materials. Background technique [0002] Ultra-high molecular weight polyethylene fiber (UHMW PE), also known as high-strength and high-modulus polyethylene fiber, is widely used as a special fiber and high-performance fiber because of its excellent mechanical properties, stable chemical properties and ideal mechanical properties. Aerospace, military machinery, transportation, sports equipment and other fields. However, due to the relatively high molecular weight, the degree of orientation of polyethylene is also high, the molecular arrangement is regular, the crystallinity is high, and dyeing is more difficult. At present, there are mainly two conventional methods, one is the method of adding dye masterbatch, and the other is the method of modification. The method of adding color masterbatch is to add th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P3/79D06P1/16D06P1/39D06P1/44D06P5/08D06M11/55D06M11/64D06M11/50
Inventor 金国周李杰昌成柱鑫何林伟郑国全
Owner SHAOXING JINYU TEXITLE NEW TECH CO LTD
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