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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

Active Publication Date: 2018-09-04
TOYO TOYOBO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, when dye is applied to the intermediate drawn yarn under heating, there is a problem that the heat history applied to the intermediate drawn yarn will affect the subsequent drawing, resulting in uneven thickness of the fiber, and it is difficult to realize the dyeing in the fiber length direction. Dyeing with little uniformity and unevenness of upper strength

Method used

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  • Colored polyethylene fiber and manufacturing method for same
  • Colored polyethylene fiber and manufacturing method for same
  • Colored polyethylene fiber and manufacturing method for same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0045] The colored polyethylene fiber of this embodiment is characterized in that,

[0046] (1) The L* value based on the CIE-L*a*b* chromaticity system is below 80, and the color fastness to rubbing is above grade 3 in both the dry state and the wet state; or,

[0047] (II) The solvent resistance obtained by the following measurement method is 75% or more.

[0048] [Measuring method of solvent resistance]

[0049] The colored polyethylene fibers were dipped in acetone at a concentration of 0.1 g / mL and left at room temperature for 24 hours. The transmittance in the wavelength range of 350nm to 780nm was measured using a UV-visible spectrophotometer for the acetone used to impregnate the colored polyethylene fiber and the acetone after the colored polyethylene fiber was impregnated and left to stand at 20±5°C for 24 hours , from the obtained transmittance curve, the integral value of the transmittance in the above-mentioned wavelength region was obtained, and the solvent res...

Embodiment approach 2

[0107] The colored polyethylene fiber of this embodiment is characterized in that,

[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 states, and the acid value is above 0.1mgKOH / g and 50mgKOH / g or less.

[0109] The colored polyethylene fiber of this embodiment is colored in a dark color, and the L* value obtained when the colored polyethylene fiber or a processed product obtained from the colored polyethylene fiber is measured by the CIE-L*a*b* color difference measurement method is Below 80. The smaller the L* value, the darker the polyethylene fiber is. Therefore, the L* value must be 80 or less, preferably 75 or less, more preferably 70 or less, still more preferably 65 or less. In addition, the lower limit of L* value is not specifically limited.

[0110] The colored polyethylene fiber of this embodiment is excellent in color fastness to rubbing. More specifically, the c...

Embodiment approach 3

[0147] The colored polyethylene fiber of this embodiment is characterized in that,

[0148] The L* value based on the CIE-L*a*b* colorimetric system is 80 or less, the color fastness to rubbing is grade 3 or higher in both the dry state and the wet state, and contains 0.4% to 5.0% 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 in a dark color, and the L* value obtained when the colored polyethylene fiber or a processed product obtained from the colored polyethylene fiber is measured by the CIE-L*a*b* color difference measurement method is Below 80. The smaller the L* value, the darker 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, even more preferably 65 or less. In addition, the lower limit of L* value is not specifically limited.

[0150] The colored polyeth...

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Abstract

A colored polyethylene fiber according to the present invention is no more than L* 80 in the CIE L*a*b* color space. Colorfastness to dry and wet rubbing is grade 3 or higher. Solvent resistance is atleast 75% according to a predetermined measurement method. Therefore, the colored polyethylene fiber according to the present invention is richly colored and less susceptible to fading and color migration. Said colored polyethylene fiber is also both strong and a uniform color with few irregularities.

Description

technical field [0001] This invention relates to colored polyethylene fibers. Background technique [0002] Conventionally, various techniques have been disclosed as methods for producing colored fibers. However, since high-strength polyethylene has a simple chemical structure and a very high degree of crystallinity, there is a problem that it is difficult to obtain polyethylene fibers having a color tone and color fastness satisfying market demands. In order to solve the above problems, for example, Patent Document 1 discloses a method of adding dyes from the raw material preparation stage to obtain dope-dyed yarns, and Patent Document 2 discloses a method of imparting dyes to intermediate drawn yarns under heating. [0003] prior art literature [0004] patent documents [0005] Patent Document 1: Japanese Patent No. 3143886 [0006] Patent Document 2: Japanese Patent Laid-Open Gazette "Japanese Patent Application Laid-Open No. 4-289212" Contents of the invention ...

Claims

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Application Information

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IPC IPC(8): D01F6/04D02J1/22D03D15/00D03D15/283D03D15/54
Inventor 福岛靖宪石田诚治西村浩和冈本达志古田明久奥山幸成福西范树吉崎贤一
Owner TOYO TOYOBO CO LTD
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