Title:
MOISTURE ABSORBENT ACRYLONITRILE-BASED FIBER, METHOD FOR PRODUCING SAME AND FIBER STRUCTURE CONTAINING SAME
Document Type and Number:
WIPO Patent Application WO/2019/058966
Kind Code:
A1
Abstract:
A moisture absorbent acrylonitrile-based fiber configured from a polymer, said polymer being substantially free from any crosslinked structure via covalent bonds, is characterized in that: carboxyl groups are uniformly distributed all over the fiber; the content of the carboxyl groups in the fiber is 0.2-4.5 mmol/g; and, at 20°C × 65%RH, the saturated moisture-absorbing ratio of the fiber is 5 wt% or more and the swelling degree in water thereof is 10 times or less. This moisture absorbent acrylonitrile-based fiber requires no step of introducing a crosslinked structure and has sufficient fiber properties, which enables continuous production thereof. The moisture absorbent acrylonitrile-based fiber has high water absorbent properties and, moreover, shows no increase in redness during use. In addition, shrink properties, easy-decrimping properties, bulkiness and water repellency can be easily imparted to the fiber.
Inventors:
KOMIYAMA TAKUZO (JP)
MIZUTANI KENTA (JP)
MIZUTANI KENTA (JP)
Application Number:
PCT/JP2018/032852
Publication Date:
March 28, 2019
Filing Date:
September 05, 2018
Export Citation:
Assignee:
JAPAN EXLAN CO LTD (JP)
International Classes:
D01F6/18; D06M11/00; D06M11/38; D06M101/28
Domestic Patent References:
| WO2015041275A1 | 2015-03-26 |
Foreign References:
| JPH11293516A | 1999-10-26 | |||
| JPH03124811A | 1991-05-28 | |||
| JPS5836209A | 1983-03-03 |
Attorney, Agent or Firm:
KAZAHAYA, Nobuaki et al. (JP)
Download PDF:
Previous Patent: METHOD FOR DIAGNOSING STATE OF ROLLING GUIDE DEVICE
Next Patent: INDUCTOR AND MANUFACTURING METHOD FOR SAME
Next Patent: INDUCTOR AND MANUFACTURING METHOD FOR SAME