Title:
SYNTHETIC LEATHER AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2024/004475
Kind Code:
A1
Abstract:
Provided are a synthetic leather achieving both wear resistance and a velvety texture, which is a texture typical of nubuck, and a method for producing the same. The synthetic leather according to the present invention comprises an entangled sheet and a polymer elastic body with which the entangled sheet is impregnated. The entangled sheet has a structure of at least two layers composed of a fiber layer (A) serving as a top face of the synthetic leather, and a scrim in contact with the fiber layer (A). An average diameter of the fibers constituting the fiber layer (A) is between 2 µm and 7 µm both inclusive. The following requirements (1) and (2) are satisfied: (1) a buffed portion area ratio (S) on the top face side of the synthetic leather satisfies the relationship 0.18 ≤ S ≤ 0.5; and (2) a peak material volume (Vmp) [mm3] of the top face side of the synthetic leather satisfies the relationship 1 ≤ Vmp ≤ 3.
Inventors:
TERAMURA TAKUYA (JP)
NAKATANI MASAYUKI (JP)
HAYASHI YUKA (JP)
NAKATANI MASAYUKI (JP)
HAYASHI YUKA (JP)
Application Number:
PCT/JP2023/019760
Publication Date:
January 04, 2024
Filing Date:
May 26, 2023
Export Citation:
Assignee:
ASAHI CHEMICAL IND (JP)
International Classes:
D06N3/00; D06N3/14
Domestic Patent References:
| WO2021085427A1 | 2021-05-06 | |||
| WO2020129741A1 | 2020-06-25 |
Foreign References:
| JP2022044227A | 2022-03-17 | |||
| JP2017043859A | 2017-03-02 |
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
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