Knit-by-design method and fabric
AssigneeInvista North America S.A R.L.
InventorsCheng-Yuan Chuang, Graham Laycock, Raymond Leung
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AssigneeInvista North America S.A R.L.
InventorsCheng-Yuan Chuang, Graham Laycock, Raymond Leung
Estimating the term…
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° 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° C. as shown by molecular weight analysis of the spandex and that exhibits wash shrinkage of less than about 14%.
A circular knit, elastic, single jersey fabric made by the steps of:
A circular knit, elastic, single jersey fabric, comprising bare elastomeric yarn in every course and at least one hard yarn, that has been exposed to temperature no higher than 160° C. as shown by differential scanning calorimetry or molecular weight analysis of the spandex and exhibits wash shrinkage of less than about 15%.
Dependencies are inferred from the claim text.