Title:
再生セルロースからの成形体の製造において使用される回収綿繊維を前処理する方法
Document Type and Number:
Japanese Patent JP6488484
Kind Code:
B2
Abstract:
A process for pretreating reclaimed cotton fibers to be used in the production of molded bodies from regenerated cellulose, characterized by effective metal reduction and adjustment of the degree of polymerization and brightness, including a metal removing stage and an oxidative bleaching stage of the reclaimed cotton fibers or pulp produced thereof. Reclaimed cotton fibers treated according to the described process may be used alone or in blends with conventional dissolving pulp as raw material for the production of molded bodies from regenerated cellulose. The process enables technically smooth, safe, and economically feasible spinning via the Viscose or Lyocell process, therefore, the current invention provides an efficient recycling pathway for cotton waste materials.
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Inventors:
Weillach, Christian
Modal, Susanna
Spellger, christian
Borgers, Andrea
Modal, Susanna
Spellger, christian
Borgers, Andrea
Application Number:
JP2016532639A
Publication Date:
March 27, 2019
Filing Date:
November 18, 2014
Export Citation:
Assignee:
RENCHING Actien Gezel Shaft
International Classes:
D01F2/00; C08J5/00; D06M11/34
Domestic Patent References:
| JP7116305B2 | ||||
| JP8239504A | ||||
| JP2003266510A | ||||
| JP8501132A | ||||
| JP2011503369A | ||||
| JP8260369A | ||||
| JP2001316937A | ||||
| JP10331027A | ||||
| JP6287881A | ||||
| JP2012188654A | ||||
| JP8509781A | ||||
| JP8512365A | ||||
| JP2001501260A | ||||
| JP9505119A |
Foreign References:
| CN102677230A | ||||
| GB685843A | ||||
| US20010050153 | ||||
| EP2589689A2 | ||||
| US20140182801 |
Attorney, Agent or Firm:
Atsushi Nakajima
Kato Kazunori
Kato Kazunori