Long cut cellulose acetate staple fibers for fill materials
AssigneeEastman Chemical (China) Co., Ltd.
InventorsDnyanada Shankar Satam, Brian Tyndall Edwards, Emily Baird Anderson, Wen Ying Qiu, Yi Hui Wu, Heather Grandelli Quigley, Pevas Domonic Bailey
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Abstract
Long cut cellulose acetate staple fibers having cut lengths of 55 mm or greater can be used to readily form fiber blends with silk fibers. Additionally, the long cut cellulose acetate fibers may be used to form fill materials for filled articles, which can be produced from the fiber blends or formed entirely from the long cut cellulose acetate fibers. Due to their unique properties, the long cut cellulose acetate fibers may partially or entirely replace silk fibers in various applications.
Claims20
A fiber blend comprising:
- (a) a cellulose acetate staple fiber, wherein the cellulose acetate staple fiber has a cut length of at least 55 mm;
- and
- (b) at least 25 weight percent of a silk fiber.
A fiber blend comprising:
- (a) a cellulose acetate staple fiber, wherein the cellulose acetate staple fiber comprises a cut length of greater than 150 mm;
- and
- (b) an optional secondary fiber.
A fill material for use in filled articles and/or insulation comprising:
- (a) at least 95 weight percent of a cellulose acetate staple fiber, wherein the cellulose acetate staple fiber has a cut length of at least 55 mm,
- (b) an optional secondary fiber.
A filled article comprising an outer fabric layer and a fill material disposed within the outer fabric layer, wherein the fill material comprises:
- (a) a fiber blend of silk fibers and cellulose acetate staple fibers, wherein the blend comprises at least 25 weight percent of the silk fibers,
- (b) a first fiber material comprising at least 95 weight percent of cellulose acetate staple fibers having a cut length of at least 55 mm, and/or
- (c) a second fiber material comprising cellulose acetate staple fibers having a cut length of at least 150 mm.
Dependencies are inferred from the claim text.