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Polyethylene yarn, method for manufacturing the same, and skin cooling fabric comprising the same

A polyethylene and yarn technology, applied in the field of polyethylene yarn, can solve the problems of not being suitable for making fabrics with a cool feeling on the skin, low elongation at break, poor weavability, etc., and achieve excellent weavability and high thermal conductivity Sexy, soft touch effect

Active Publication Date: 2022-05-13
KOLON IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even though it exhibits high thermal conductivity, due to the high melt viscosity of UHMWPE, it can only be produced by gel-spinning method, therefore, there is a problem of causing environmental problems and requiring considerable cost to recycle organic solvents
In addition, due to SK60 fiber has high strength above 28g / d, high tensile modulus above 759g / d and low elongation at break of 3% to 4%, therefore, the weavability is not good
In addition, due to SK60 fibers have too high a stiffness and are therefore not suitable for use in the manufacture of skin-cooling fabrics intended to come into contact with the user's skin

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Polyethylene yarn, method for manufacturing the same, and skin cooling fabric comprising the same
  • Polyethylene yarn, method for manufacturing the same, and skin cooling fabric comprising the same
  • Polyethylene yarn, method for manufacturing the same, and skin cooling fabric comprising the same

Examples

Experimental program
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Embodiment 1

[0144] use figure 1 The apparatus shown in produces polyethylene yarn comprising 200 filaments and having a total fineness of 400 denier. Specifically, the density is 0.961g / cm 3 , weight average molecular weight (Mw) is 87,660g / mol, polydispersity index (PDI) [ratio of weight average molecular weight (Mw) to number average molecular weight (Mn) (Mw / Mn)] is 6.4 and melt index (at 190°C Polyethylene chips with a MI) of 11.9 g / 10 min were injected into the extruder 100 and melted. The molten polyethylene was extruded through a spinneret 200 having 200 holes. L / D is the ratio of the hole length L to the hole diameter D of the spinneret 200, and is 5.0. The spinneret temperature was 270°C.

[0145] The filaments 11 formed when discharged from the spinneret 200 are finally cooled to 25° C. in the quench zone 300 by cooling air with a wind speed of 0.5 m / s, and converged into multifilaments 10 by the convergence unit 400 and moved to the multi-stage drawing Extension part 500. ...

Embodiment 2

[0149] In addition to using a density of 0.958g / cm 3 , a polyethylene chip with a weight average molecular weight (Mw) of 98,290 g / mol, a polydispersity index (PDI) of 8.4 and a melt index (MI at 190°C) of 6.1 g / 10min, with a spinneret temperature of 275°C and A polyethylene yarn was obtained in the same manner as in Example 1 except that the overfeed ratio was 7.5%.

Embodiment 3

[0151] In addition to using a density of 0.948g / cm 3 , a polyethylene chip with a weight average molecular weight (Mw) of 78,620 g / mol, a polydispersity index (PDI) of 8.2 and a melt index (MI at 190°C) of 15.5 g / 10min, with a spinneret temperature of 260°C and A polyethylene yarn was obtained in the same manner as in Example 1 except that the total draw ratio was 7.0.

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Abstract

The present disclosure relates to a polyethylene yarn capable of manufacturing a cool skin fabric having dimensional stability and improved weavability, and capable of manufacturing a cool skin fabric capable of providing a soft feel and a cool feel to a user; the present disclosure relates to a method of manufacturing the polyethylene yarn; and a skin cool fabric comprising the polyethylene yarn. The shrinkage stresses of the polyethylene yarn at 70 DEG C and 100 DEG C are respectively 0.005 g / d to 0.075 g / d. Further, the polyethylene yarn has a "dry heat shrinkage at 70 DEG C" of 0.1% to 0.5%, a "dry heat shrinkage at 100 DEG C" of 0.5% to 1.5%, and a "wet heat shrinkage at 100 DEG C" of 0.1% to 1%.

Description

technical field [0001] The present invention relates to a polyethylene yarn, a method for producing the polyethylene yarn and a skin cooling fabric comprising the polyethylene yarn. More specifically, the present invention relates to a polyethylene yarn capable of producing a skin-cooling fabric with dimensional stability and improved weavability, which can provide users with a soft touch and a cool or cool feeling. feel; relates to a method of making the polyethylene yarn; and a skin-cooling fabric comprising the polyethylene yarn. Background technique [0002] As the world warms, there is an increasing demand for fabrics that can be used to beat the heat. Factors that may be considered in developing fabrics that can be used to combat heat include: (i) removing the cause of heat; and (ii) removing heat from the user's skin. [0003] A method focusing on removing heat factors, a method of reflecting light by applying an inorganic compound to the surface of the fiber (for e...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D02G3/02D02G3/44D03D15/283D03D15/50D01F6/04D01D5/098D01D5/088
CPCD02G3/02D02G3/44D03D15/283D03D15/50D01F6/04D01D5/088D01D5/098D10B2321/021D01D5/16D03D13/008D03D15/41D03D15/44D02G3/26D03D15/567D03D15/573D03D1/0035D10B2501/00
Inventor 金宰亨金基雄金成龙李相牧李信镐李英洙
Owner KOLON IND INC
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