US2019174837A1PendingUtilityA1

Polyamide multifilament, and lace knit and stockings using same

Assignee: TORAY INDUSTRIESPriority: Jul 26, 2016Filed: Jul 11, 2017Published: Jun 13, 2019
Est. expiryJul 26, 2036(~10 yrs left)· nominal 20-yr term from priority
A41B 11/14D10B 2501/021D04B 21/12D02G 3/44D04B 21/207D01F 6/60D02G 3/38D02G 3/02D10B 2331/02
55
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Claims

Abstract

A polyamide multifilament has a tensile strength at 15% elongation of 4.0 to 6.0 cN/dtex, a strength-elongation product of 10.0 cN/dtex or more, and a yarn unevenness (U %) of 1.2 or less. The high-strength polyamide multifilament makes it possible to obtain stockings having high softness, durability, and transparency, and a lace knit in which patterns have a beautiful appearance.

Claims

exact text as granted — not AI-modified
1 .- 6 . (canceled) 
     
     
         7 . A polyamide multifilament having a tensile strength at 15% elongation of 4.0-6.0 cN/dtex, a strength-elongation product of 10.0 cN/dtex or larger, and a yarn unevenness (U %) of 1.2 or less. 
     
     
         8 . The polyamide multifilament according to  claim 7 , having a single-filament fineness of 1.3-3.4 dtex. 
     
     
         9 . The polyamide multifilament according to  claim 7 , having an elongation of 30-50%. 
     
     
         10 . The polyamide multifilament according to  claim 7 , having a sum of a content of crystals and a content of rigid amorphous components of 70-90%. 
     
     
         11 . A knitted lace produced using the polyamide multifilament according to  claim 7  as a ground lace yarn. 
     
     
         12 . A stocking partly comprising a covered yarn obtained using the polyamide multifilament according to  claim 7  as a covering yarn. 
     
     
         13 . The polyamide multifilament according to  claim 8 , having an elongation of 30-50%. 
     
     
         14 . The polyamide multifilament according to  claim 8 , having a sum of a content of crystals and a content of rigid amorphous components of 70-90%. 
     
     
         15 . The polyamide multifilament according to  claim 9 , having a sum of a content of crystals and a content of rigid amorphous components of 70-90%. 
     
     
         16 . A knitted lace produced using the polyamide multifilament according to  claim 8  as a ground lace yarn. 
     
     
         17 . A knitted lace produced using the polyamide multifilament according to  claim 9  as a ground lace yarn. 
     
     
         18 . A knitted lace produced using the polyamide multifilament according to  claim 10  as a ground lace yarn. 
     
     
         19 . A stocking partly comprising a covered yarn obtained using the polyamide multifilament according to  claim 8  as a covering yarn. 
     
     
         20 . A stocking partly comprising a covered yarn obtained using the polyamide multifilament according to  claim 9  as a covering yarn. 
     
     
         21 . A stocking partly comprising a covered yarn obtained using the polyamide multifilament according to  claim 10  as a covering yarn. 
     
     
         22 . A stocking partly comprising a covered yarn obtained using the polyamide multifilament according to  claim 11  as a covering yarn.

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