Preparation method of colored polyethylene fiber with ultrahigh relative molecular mass
A relative molecular weight, polyethylene fiber technology, applied in the direction of single-component polyolefin rayon, dyeing, textile and papermaking, etc. Simple manufacturing process, easy industrial production, and low production cost
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[0025] Example 1
[0026] Preparation of black UHMWPE fiber
[0027] Use double azo solvent black (molecular formula: C 29 H 24 N 6 ) Is a dye additive, which is mixed with ethanol at a mass ratio of 1:1000, and ultrasonically oscillated for 20 minutes to make the dye uniformly dissolved to obtain a black dye solution. The UHMWPE dry jelly fiber after extracting and removing the solvent is placed in a dye solution, ultrasonicated for 20 minutes, dried at room temperature, and then subjected to three-stage thermal stretching at 80-110° C., with a total stretching ratio of 42 times, to obtain black UHMWPE fiber. The strength of the prepared black UHMWPE fiber is 32.5 cN / dtex.
Example Embodiment
[0028] Example 2
[0029] Preparation of red UHMWPE fiber
[0030] Iron oxide red with a particle size of less than 1 um is selected as the pigment additive, and the iron oxide red and xylene are mixed in a mass ratio of 1:500, and ultrasonically oscillated for 30 minutes to make the pigment particles uniformly dispersed to prepare a red dye solution. After extraction and drying, the UHMWPE dry jelly fiber with a solvent content of 1.5% is placed in the dye solution, ultrasonicated for 40 minutes, taken out and dried at room temperature, and then subjected to three-stage thermal stretching at 80~110℃, the total stretching ratio is 35 times, the strength of the prepared red UHMWPE fiber is 28.5 cN / dtex.
Example Embodiment
[0031] Example 3
[0032] Preparation of blue UHMWPE fiber
[0033] Use anthraquinone solvent blue (molecular formula: C 22 H 18 N 2 O 2 ) Is the dye, mix it with ethanol at a mass ratio of 1:800, and ultrasonically shake for 20 minutes to make the dye dissolve uniformly to obtain a black dye solution. The UHMWPE dry jelly fiber after extraction and removal of solvent is placed in the dye solution, ultrasonic for 30 minutes, dried at room temperature, and then subjected to three-stage thermal stretching at 80-110°C. The total stretching ratio is 42 times to obtain green UHMWPE fiber. The strength is 30.8cN / dtex.
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