Title:
スピナレットを使用したセルロースアセテートトウを製造する方法
Document Type and Number:
Japanese Patent JP7109888
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method for managing uniformity of filaments influenced by spinneret deposition and occlusion.SOLUTION: Cellulose acetate tow is formed by passing a cellulose acetate dope through a spinneret for spinning to form filaments. The filaments are bundled to form the tow. The tow is then crimped, dried and baled. Downstream products produced from the tow include a cigarette filter, where the cigarette filter desirably has uniform characteristics. The uniformity of the downstream products made from a single tow bale may be achieved by cleaning a spinneret contaminated by deposition and/or occlusion. Also disclosed is a further step for improving the uniformity.SELECTED DRAWING: Figure 1A
Inventors:
Austin Pea Banks
Christopher M Bandren
Christopher M Bandren
Application Number:
JP2017109863A
Publication Date:
August 01, 2022
Filing Date:
June 02, 2017
Export Citation:
Assignee:
Celanese International Corporation
International Classes:
D06H3/00; A24D3/02; D01F2/28
Domestic Patent References:
| JP5841671B2 | ||||
| JP2004536551A |
Foreign References:
| WO2015194007A1 | ||||
| WO2016084120A1 |
Attorney, Agent or Firm:
Osamu Yamamoto
Toru Miyamae
Motoharu Nakanishi
Takashi Nakata
Toru Miyamae
Motoharu Nakanishi
Takashi Nakata