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A method for dyeing after surface treatment of ultra-high molecular weight polyethylene fibers

A technology of polyethylene fiber and ultra-high molecular weight, which is applied in ultrasonic/sonic fiber treatment, fiber treatment, dyeing, etc., can solve the problems of difficult dyeing of ultra-high molecular weight polyethylene fiber, and achieve the solution of difficult dyeing, convenient operation, and process simple effect

Active Publication Date: 2017-09-29
蔡宗富
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the above problems, the present invention provides a method for dyeing after surface treatment of ultra-high molecular weight polyethylene fibers. The method has simple process, convenient operation, low cost, no pollution, high dyeing rate, and has no effect on the mechanical properties of fibers. To a certain extent, it solves the problem that UHMWPE fibers are difficult to dye

Method used

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  • A method for dyeing after surface treatment of ultra-high molecular weight polyethylene fibers
  • A method for dyeing after surface treatment of ultra-high molecular weight polyethylene fibers
  • A method for dyeing after surface treatment of ultra-high molecular weight polyethylene fibers

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Embodiment 1

[0032] See attached image 3: the dyeing method of ultra-high molecular weight polyethylene fiber of the present invention after surface treatment, at first will carry out normal pressure dielectric barrier discharge plasma continuous treatment with the fiber of acetone cleaning 30min back drying, and plasma treatment atmosphere is Ar and O 2 Mixed gas, the flow rate of Ar gas is 1L / min, O 2 The flow rate is 0.1L / min, the processing power is 4Kw, and the processing time is 80s. After that, the fibers after plasma surface modification are grafted with chitosan. The molecular weight of chitosan is about 50,000. The density is about 90%, chitosan is prepared into chitosan solution with 2% acetic acid solution, the mass fraction of chitosan solution is 0.5%, the temperature of grafting is 40°C, the time of grafting is 0.5h, and the grafting time is 0.5h. The bath ratio is 1:40. The grafted fibers are washed with deionized water, dried, and then dyed. The dyeing agent is 3% (o.w....

Embodiment 2

[0034] See attached Figure 4 : the dyeing method of ultra-high molecular weight polyethylene fiber of the present invention after surface treatment, at first will carry out normal pressure dielectric barrier discharge plasma continuous treatment with the fiber of acetone cleaning 30min back drying, and plasma treatment atmosphere is Ar and O 2 Mixed gas, the flow rate of Ar gas is 1L / min, O 2 The flow rate is 0.1L / min, the processing power is 4kw, and the processing time is 100s. After that, the fiber after plasma treatment is grafted with chitosan. The molecular weight of chitosan is about 50,000, and the degree of deacetylation is about 90. %, chitosan adopts 2% acetic acid solution to prepare chitosan solution, the mass fraction of chitosan solution is 0.7%, the temperature of grafting is 60 ℃, the time of grafting is 1h, and the liquor ratio of grafting is 1:40. The fibers after grafting are washed with deionized water, dried, and then dyed. The dyeing agent is 4% (o.w....

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Abstract

The invention discloses a method for dyeing the processed surface of ultra-high molecular weight polyethylene fiber, and belongs to the technical field of textile material modified dyeing. The surface processing includes the normal-pressure medium discharge blockage plasma surface modifying treatment and chitosan grafting arrangement. The processing steps include the first step of conducting surface modifying treatment on the cleaned and dried ultra-high molecular weight polyethylene fiber in a normal-pressure medium discharge blockage plasma device, the second step of conducting chitosan grafting arrangement on ultra-high molecular weight polyethylene fiber modified by normal-pressure plasmas and the third step of dyeing the processed fiber with active dye. The method is simple in process, convenient to operate, green, free of pollution, low in cost, high in dyeing rate, free of influences on the fiber mechanical property, and capable of solving the problem that the ultra-high molecular weight polyethylene fiber is hard to dye to a certain extent.

Description

technical field [0001] The invention relates to the technical field of surface modification and dyeing of textile fibers, in particular to a method for dyeing after surface treatment of ultra-high molecular weight polyethylene fibers. Background technique [0002] Ultra-high molecular weight polyethylene fiber (UHMWPE), also known as high-strength high-modulus polyethylene fiber. Due to its structure, UHMWPE fiber has many excellent properties that cannot be compared with conventional fibers. UHMWPE fiber has excellent impact resistance, good wear resistance and self-lubricating properties, excellent chemical corrosion resistance, cutting resistance, bulletproof performance, etc., and can maintain good mechanical properties and flexibility at low temperatures. It is widely used in medical field, military field, aerospace field and so on. [0003] However, the relative molecular weight of UHMWPE fibers is relatively high, and the molecular structure is mainly composed of me...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M10/02D06M15/03D06P1/38D06P1/673D06P3/79D06M101/20
CPCD06M10/02D06M15/03D06M2101/20D06P1/38D06P1/6735D06P3/798
Inventor 任煜张银王海峰丁志荣臧传锋王晓娜徐林
Owner 蔡宗富
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