Nonwoven thermal insulating stretch fabric and method for producing same
AssigneeMinnesota Mining and Manufacturing Company
InventorPatrick H. Carey, Jr.
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Abstract
A nonwoven stretch fabric is provided. The fabric is produced from a web of bicomponent fibers bonded together by fusion of fibers at points of contact and thermally crimped in situ in the web. The fabric has good uniformity, good thermal insulating properties, and is produced by subjecting a fibrous web of thermally bondable, thermally crimpable bicomponent fibers to heated gas supplied continuously to the top of the web and intermittently to the bottom of the web.
Claims18
A substantially uniform stretch fabric comprising a nonwoven web of bicomponent fibers bonded together by fusion of fibers at points of contact and thermally crimped in situ in the web.
A process for producing a substantially uniform stretch fabric comprising forming a fibrous web of thermally bondable, thermally crimpable bicomponent fibers and then subjecting the web to heated gas supplied continuously to the top of the web and intermittently to the bottom of the web to cause crimping and bonding of the fibers.
Dependencies are inferred from the claim text.