Process for the preparation of regenerated cellulose filaments

Details Process for the preparation of regenerated cellulose filaments Process for the preparation of regenerated cellulose filaments

1998-05-19

1999-12-07

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

26421112, 26421115, 26421116, 264233, 264234, D01D 1006, D01F 202, D01F 228

Patent

active

059977906

ABSTRACT:
The disclosure describes a process for the preparation of regenerated cellulose filaments from an anisotropic solution including cellulose formate, phosphoric acid, and formic acid in which the formed cellulose formate filaments are dried to a moisture content of not more than 15% prior to regeneration and after regeneration the filaments are washed and dried under low tension. In this manner cellulose multifilament yarns of high breaking load and high elongation at break can be obtained, which in addition have a very regular linear density.

REFERENCES:
patent: 4370168 (1983-01-01), Kamide et al.
patent: 4839113 (1989-06-01), Villaine et al.
patent: 5571468 (1996-11-01), Meraldi et al.

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