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AssigneeKolon Industries, Inc.
InventorsSeong-Young KIM, Young Soo LEE, Jung Eun PARK, Sinho LEE
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The present invention relates to a dope dyed polyethylene yarn and a functional fabric including the same, and more particularly, to a dope dyed polyethylene yarn having excellent color uniformity and a functional fabric including the same. A dope dyed polyethylene yarn according to the present invention contains a pigment, wherein L*, a* and b* measured under the following measurement condition satisfy the following expression: [Measurement condition] a measurement region is formed by winding the dope dyed polyethylene yarn around a planar substrate, computer color matching (CCM) is measured in the measurement region, and the CCM is measured at least n times (n is a natural number of 50 or more) every time the dope dyed polyethylene yarn is wound around the substrate 70 turns, ( C max - C min ) / C aver × 1 0 0 ≤ 1 5 [ Expression ] wherein Cmax, Cmin, and Caver represent maximum, minimum, and average values of any one selected from L*, a*, and b*, respectively.
A dope dyed polyethylene yarn comprising a pigment, wherein L*, a* and b* measured under the following measurement condition satisfy the following expression:
The dope dyed polyethylene yarn of claim 1, wherein when the CCM of the dope dyed polyethylene yarn is measured, a standard deviation of values of L* is 3 or less.
The dope dyed polyethylene yarn of claim 1, wherein the pigment is contained in an amount of 0.00005 to 1 wt % with respect to a total weight of the dope dyed polyethylene yarn.
The dope dyed polyethylene yarn of claim 1, wherein a degree of crystallinity of the dope dyed polyethylene yarn is 60 to 80%.
The dope dyed polyethylene yarn of claim 1, wherein the dope dyed polyethylene yarn has an initial modulus of 10 to 300 cN/dtex and a strength of 1.5 to 20 g/d when measured according to ASTM D2256.
The dope dyed polyethylene yarn of claim 1, wherein the dope dyed polyethylene yarn has a melt index (MI, @190° C.) of 0.5 to 22 g/10 min when measured according to ASTM D1238.
The dope dyed polyethylene yarn of claim 1, wherein the dope dyed polyethylene yarn has a dry heat shrinkage rate (@100° C.) of 2 to 15% when measured according to ASTM D4974-04.
A functional fabric manufactured using the dope dyed polyethylene yarn of claim 1.
The functional fabric of claim 8, wherein the functional fabric has a contact cooling sensation of 0.1 to 0.3 W/cm2 when measured by bringing a heat plate (T-box) at 30±2° C. into contact with the functional fabric at 20±2° C. at 20±2° C. and 65±2% R.H.
The functional fabric of claim 8, wherein the functional fabric has a thermal conductivity in a thickness direction of 0.05 to 0.25 W/mK when measured by bringing a heat source plate (BT-box) at 30±2° C. into contact with the functional fabric at 20±2° C. at 20±2° C. and 65±2% R.H.
Dependencies are inferred from the claim text.