Title:
POLYESTER BINDER FIBER HAVING HIGH ADHESIVE FORCE
Document Type and Number:
WIPO Patent Application WO/2022/154072
Kind Code:
A1
Abstract:
Provided is a polyester binder fiber with which it is possible to manufacture a high-strength fiber structure. The polyester binder fiber may have a ΔH of 30 J/g or less, calculated according to the difference between a melting heat absorption amount ΔHm and a crystallization heat dissipation amount ΔHc on a heating process differential scanning calorimetry (DSC) curve obtained by DSC. Moreover, in regard to a crystal component ratio (a1), a restricted amorphous component ratio (a2), and an amorphous component ratio (a3), calculated based on a spin-spin mitigation time T2 at 140°C obtained by pulse nuclear magnetic resonance (NMR) measurement, the polyester binder fiber may have a ratio (a1:(a2 + a3)) of the crystal component ratio (a1) to the total of the restricted amorphous component ratio (a2) and the amorphous component ratio (a3) within the range of 98.0:2.0 to 50.0:50.0.
Inventors:
IMAGAWA KAORI (JP)
KOIZUMI SATOSHI (JP)
KOIZUMI SATOSHI (JP)
Application Number:
PCT/JP2022/001042
Publication Date:
July 21, 2022
Filing Date:
January 14, 2022
Export Citation:
Assignee:
KURARAY CO (JP)
International Classes:
D01F6/62; D04H1/55
Domestic Patent References:
| WO2018123986A1 | 2018-07-05 | |||
| WO2014021084A1 | 2014-02-06 |
Foreign References:
| JP2018204153A | 2018-12-27 | |||
| JP2003089958A | 2003-03-28 | |||
| JPS57133217A | 1982-08-17 | |||
| JP2007131777A | 2007-05-31 |
Attorney, Agent or Firm:
SUGIMOTO, Shuji et al. (JP)
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