Invista North America S.a.r.l.

Invista Technologies S.a.r.l.

Cheng-Yuan Chuang

Raymond S P Leung

Fred C Wynegar

Graham H Laycock

Tianyi Liao

Juan Cera

Peter George Szanto

Elizabeth Todd Singewald

Graham Laycock

Raymond SP Leung

Fred Wynegar

An article comprising a knit fabric having a surface side and a base side, and including a set of ground yarns and a layer of effect yarns, wherein the ground yarns and effect yarns are knit through intermesh points in a predetermined arrangement wherein the effect yarns are alternately arranged with the ground yarns and wherein the ground yarns comprise at least one elastic fiber and optionally at least one hard fiber, and the effect yarns comprise at least one hard fiber and optionally an elastic fiber.

Stretch circular knit fabrics with multiple elastic yarns

Articles of knit fabric having a surface side and a base side, and including a set of ground yarns and a layer of effect yarns, wherein the ground yarns and effect yarns are knit through intermesh points in a predetermined arrangement, wherein the effect yarns are alternately arranged with the ground yarns, and wherein the ground yarns contain at least one elastic fiber and optionally at least one hard fiber, and the effect yarns contain at least one hard fiber or at least one elastic fiber are provided.

Circular knit, elastic fabrics of at least one of single jersey, French terry, and fleece are disclosed that include a bare elastomeric material plated with spun and/or continuous filament hard yarns. The circular knit, elastic fabrics of at least one of single jersey, French terry, and fleece are manufactured by a method that does not require a dry heat setting step. The method requires drafting the bare elastomeric material no more than about 7&#xd7; its original length when knitting to form the circular knit, elastic, single jersey, French terry, or fleece fabric. The method includes contacting the knit fabric with an aqueous solution under very low tension and under conditions of temperature and pressure for a period of time sufficient to substantially set the elastomeric material.

Method to make circular knit elastic fabric comprising spandex and hard yarns

The invention provides a method for knitting fabric with bare spandex comprising: providing bare spandex yarn; providing hard yarn; drafting the bare spandex; knitting fabric from the hard yarn and the drafted bare spandex with the hard yarn and the drafted bare spandex plated in every course; and contacting the knit fabric with a continuous phase aqueous solution under conditions of temperature and pressure for a time sufficient to set the bare spandex without heating the knit fabric on a tenter frame above 160&#xb0; C. in air having a relative humidity of less than 50%. The invention further provides a bare spandex-containing knit fabric containing spandex in every knit course that has been exposed to manufacturing process temperature no higher than 160&#xb0; C. as shown by molecular weight analysis of the spandex and that exhibits wash shrinkage of less than about 14%.

Knit-by-design method and fabric

Circular knit, elastic fabrics of at least one of single jersey, French terry, and fleece are disclosed that include a bare elastomeric material plated with spun and/or continuous filament hard yarns. The circular knit, elastic fabrics of at least one of single jersey, French terry, and fleece are manufactured by a method that does not require a dry heat setting step. The method requires drafting the bare elastomeric material no more than about 2.5&#xd7; its original length when knitting to form the circular knit, elastic fabrics of at least one of single jersey, French terry, and fleece.

Growing community of inventors

Panchiao, Taiwan

Cheng-Yuan Chuang