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US 11,535,964 B2Granted
Weft knit fabric
AssigneeAsahi Kasei Kabushiki Kaisha
InventorNorito Kashima
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AssigneeAsahi Kasei Kabushiki Kaisha
InventorNorito Kashima
Estimating the term…
Provided is a weft knit fabric with excellent raw edge properties and flexural softness. This weft knit fabric, which contains non-elastic yarns and elastic yarns and has a front surface and a back surface, is characterized in that: the elastic yarns connect the front surface with the back surface; the front surface and the back surface have portions wherein the non-elastic yarns and the elastic yarns form needle loops together; and the ratio of the number of sinker loops formed by the non-elastic yarns and the elastic yarns together with respect to the total number of sinker loops of the non-elastic yarns on the front surface and the back surface is not more than 50%.
A weft knit fabric comprising non-elastic yarn and elastic yarn and having a front side and a back side, wherein the elastic yarn connects the front side and back side, with the front side and the back side having sections that form needle loops by doubling of the non-elastic yarn and the elastic yarn, and the proportion of the number of sinker loops formed by doubling of the non-elastic yarn and elastic yarn is 50% or lower with respect to the total number of sinker loops of the non-elastic yarn on the front side and the back side, and when the weft knit fabric is elongated with a load of 9.8 N from both a warp and a weft, the ratio between the needle loop lengths and the sinker loop lengths of the non-elastic yarn loops is 0.20 to 0.80.
Dependencies are inferred from the claim text.
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Patterned fabrics or articles: characterised by thread material
Other fabrics or articles characterised primarily by the use of particular thread materials: elastic threads
Non-run fabrics or articles: characterised by thread material
Dissimilar front and back faces: with one or more yarns appearing predominantly on one face, e.g. plated or paralleled yarns
About 13 years 3 months of term left · ends 30 Jan 2040 (estimated)
The present invention relates to a weft knit fabric.
Market demand continues to increase year-by-year for more comfortable clothing, with particular preference for underwear that has a satisfactory skin contact and a soft feel.
When conventional clothing is produced from a fabric, the cut sections of the fabric are sewn to help prevent fraying or curling of the threads at the cut sections, but this leads to problems of impaired outer appearance due to the effects of irregularities at the sewn sections, and also a less desirable wearable feel since the sewn sections are compressed by outer clothing. Clothing with good skin contact properties are marketed as “free-cut” clothing articles which lack sewing of the cut sections of their fabrics.
FIG. 1 is a diagram showing the looped state of a knitted form (knit) of warp and weft.
FIG. 2 is a diagram showing the looped state of a knitted form (tuck) of warp and weft.
FIG. 3 is a diagram showing the looped state of a knitted form (miss (welt)) of warp and weft.
Embodiments of the invention will now be described in detail.
The weft knit fabric of the embodiment comprises non-elastic yarn and elastic yarn and has a front side and a back side, wherein the elastic yarn connects the front side and back side, with the front side and the back side having sections that form needle loops by doubling of the non-elastic yarn and the elastic yarn, and the proportion of the number of sinker loops formed by doubling of the non-elastic yarn and elastic yarn is 50% or lower with respect to the total number of sinker loops of the non-elastic yarn on the front side and the back side.
The weft knit fabric of the embodiment is a weft knit fabric knitted using a weft knitting machine having two or more needle beds, and in most cases it will be knitted with a circular knitting machine. A conventional weft knit fabric exhibits curling due to warping of the loops from the knitted fabric cut sections. The weft knit fabric of the embodiment, however, has a structure in which two knitted fabrics are connected with elastic yarn, and since the two knitted fabrics attempt to warp in opposite directions from the knitted fabric cut sections, they cancel out their warping forces and curling is unlikely to occur.