Knitted product and method for producing knitted product

By fusing a 105°C or less heat-fusible yarn with natural or synthetic fiber yarns using a flat knitting machine and steam iron, the issues of shrinkage and stretching in knitted products are addressed, enabling efficient, small lot production without compromising product quality.

US20250257505A1Pending Publication Date: 2025-08-14JP AVANCE CORPORATION +1
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Patent Information

Application Number
US18/867275
Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
Priority Date
2022-05-19
Filing Date
2023-05-19
Publication Date
2025-08-14

AI Technical Summary

Technical Problem

Knitted products using natural or synthetic fiber yarns face issues with shrinkage and stretching due to washing, and require large-scale heat treatment apparatuses for heat-fusible yarn fusion, which can damage fibers and complicate small lot production.

Method used

A heat-fusible yarn that melts at 105°C or less is fused with the ground yarn using a flat knitting machine, and then melted with a steam iron to prevent shrinkage and stretching without requiring large-scale equipment.

Benefits of technology

The method effectively prevents shrinkage and stretching of natural or synthetic fiber yarns, maintains product feel, and allows for small lot, efficient production suitable for individualized needs.

✦ Generated by Eureka AI based on patent content.

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Abstract

A heat-fusible yarn that melts at 105° C. or less is fused with a whole or a part of a ground yarn that is a natural fiber yarn and / or a synthetic fiber yarn. A knitted product including the heat-fusible yarn in an unmelted state is efficiently produced by form-knitting with use of a flat knitting machine while knitting the heat-fusible yarn into the whole or a part of the ground yarn. The heat-fusible yarn melts at 105° C. or less, thereby causing the heat-fusible yarn to melt and to be fused with the ground yarn by a steam iron without using a large-scale heat treatment apparatus. The heat-fusible yarn is fused with the ground yarn of the knitted product, thereby preventing shrinkage and stretching of the ground yarn.
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Citation Information

Patent Citations

  • Production of raised and / or pile woven or knitted fabric containing cotton

    JP1997291476A

  • Pile yarn, method for producing the same and mat using the same pile yarn

    JP2002155438A

  • Bilayer-structured spun yarn, woven or knitted fabric and method for producing woven or knitted fabric

    JP2015101798A

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    US10081889B2

  • Vehicle seat trim covers including integrally-knit backing materials and methods of manufacturing vehicle seat trim covers

    US10843600B2