Title:
CELLULOSE FATTY ACID-MIXED ESTER ULTRAFINE FIBER PRECURSOR AND METHOD FOR PRODUCING THE SAME
Document Type and Number:
Japanese Patent JP2008179926
Kind Code:
A
Abstract:
To provide a cellulose fatty acid-mixed ester ultrafine fiber precursor exhibiting excellent processability through higher-order steps, and having good mechanical characteristics.
The cellulose fatty acid-mixed ester ultrafine fiber precursor is a sea-island type conjugate fiber obtained by arranging a polylactic acid in the sea part, and arranging a cellulose fatty acid mixed ester in the island part, wherein the island component forms a continuous phase in the fiber axis direction. The strength of the fiber precursor is 0.7-2.0 cN/dtex and the elongation of the precursor is 15-40%. Preferably, the cellulose fatty acid mixed ester is a cellulose acetate propionate or a cellulose acetate butyrate.
Inventors:
YAMADA HIROYUKI
NITTA KUNIFUMI
ARANISHI YOSHITAKA
NITTA KUNIFUMI
ARANISHI YOSHITAKA
Application Number:
JP2007019932A
Publication Date:
August 07, 2008
Filing Date:
January 30, 2007
Export Citation:
Assignee:
TORAY INDUSTRIES
International Classes:
D01F8/14; D01F2/28; D01F6/62