Colored polyethylene fiber and manufacturing method for same
A technology of polyethylene fiber and manufacturing method, which is applied in the direction of single-component polyolefin rayon, textile and papermaking, textile, etc. , to achieve the effect of reducing environmental load and excellent solvent resistance
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Example Embodiment
[0044] [Embodiment 1]
[0045] The colored polyethylene fiber of this embodiment is characterized by:
[0046] (I) The L* value based on the CIE-L*a*b* chromaticity system is 80 or less, and the color fastness to rubbing is above grade 3 in both dry and wet conditions; or,
[0047] (II) The solvent resistance determined by the following measurement method is 75% or more.
[0048] [Method of measuring solvent resistance]
[0049] The colored polyethylene fiber was immersed in acetone so that it might become 0.1g / mL, and it left still at room temperature for 24 hours. For the acetone used for the impregnation of the colored polyethylene fiber and the acetone after the colored polyethylene fiber was impregnated and left standing at 20±5°C for 24 hours, the transmittance in the wavelength range of 350nm to 780nm was measured using an ultraviolet-visible spectrophotometer Calculate the integral value of the transmittance in the above-mentioned wavelength region from the obtained transmitta...
Example Embodiment
[0106] [Embodiment 2]
[0107] The colored polyethylene fiber of this embodiment is characterized by:
[0108] Based on the CIE-L*a*b* chromaticity system, the L* value is below 80, the color fastness to rubbing is above grade 3 in both dry and wet conditions, and the acid value is above 0.1mgKOH / g and 50mgKOH / g or less.
[0109] The colored polyethylene fiber of this embodiment is colored dark, and the L* value obtained when the colored polyethylene fiber or the processed product obtained from the colored polyethylene fiber is measured by the CIE-L*a*b* color difference measurement method Below 80. The smaller the L* value, the more dark the polyethylene fiber is. Therefore, the L* value must be 80 or less, preferably 75 or less, more preferably 70 or less, and still more preferably 65 or less. It should be noted that the lower limit of the L* value is not particularly limited.
[0110] The colored polyethylene fiber of this embodiment is excellent in color fastness to rubbing. ...
Example Embodiment
[0146] [Embodiment 3]
[0147] The colored polyethylene fiber of this embodiment is characterized by:
[0148] The L* value based on the CIE-L*a*b* chromaticity system is 80 or less, and the color fastness to rubbing is above grade 3 in both dry and wet conditions, and contains 0.4% or more and 5.0% or less of HLB A surfactant having a value (Hydrophile-Lipophile Balance) of 7.0 or more and 14.0 or less.
[0149] The colored polyethylene fiber of this embodiment is colored dark, and the L* value obtained when the colored polyethylene fiber or the processed product obtained from the colored polyethylene fiber is measured by the CIE-L*a*b* color difference measurement method Below 80. The smaller the L* value, the more dark the polyethylene fiber is. Therefore, the L* value must be 80 or less, and the L* value is preferably 75 or less, more preferably 70 or less, and still more preferably 65 or less. It should be noted that the lower limit of the L* value is not particularly limite...
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