EP 3112530 B1 20231122 - A SHEET-LIKE ARTICLE AND A PRODUCTION METHOD THEREOF
Title (en)
A SHEET-LIKE ARTICLE AND A PRODUCTION METHOD THEREOF
Title (de)
BAHNENFÖRMIGES MATERIAL UND VERFAHREN ZUR HERSTELLUNG DAVON
Title (fr)
MATÉRIAU EN FORME DE FEUILLE ET PROCÉDÉ DE PRODUCTION ASSOCIÉ
Publication
Application
Priority
- JP 2014036516 A 20140227
- JP 2015054941 W 20150223
Abstract (en)
[origin: EP3112530A1] The invention relates to an environmentally friendly production method for a sheet-like article that does not use an organic solvent in the production process and provides a sheet-like article that compares favorably in terms of a uniform feel with artificial leather products produced from an organic solvent based polyurethane and in particular has good surface quality and texture and also provides a production method therefor. The present invention aims to provide a sheet-like article comprising a fibrous base material formed of ultrafine fibers and/or ultrafine fiber bundles provided with, as a binder, a polymer elastomer having a hydrophilic group, any thickness-directional cross section of the sheet-like article containing regions occupied by the polymer elastomer, the regions including independent regions each with a cross-sectional area of 50 µm 2 or more, the total area of the independent regions accounting for 0.1% or more and 5.0% or less of the cross-sectional area of the artificial leather in an observation view field. The production method for the sheet-like article according to the present invention provides a production process for a sheet-like article including a fibrous base material formed of ultrafine fibers and, as a binder, a polymer elastomer having a hydrophilic group, the process including a step for adding an aqueous resin dispersion liquid containing a water-dispersed polymer elastomer and a viscosity improver to a fibrous base material and a step for coagulating the polymer elastomer in hot water at a temperature of 50°C to 100°C.
IPC 8 full level
D06N 3/14 (2006.01); D06M 15/564 (2006.01); D06N 3/00 (2006.01)
CPC (source: EP KR US)
D06N 3/0004 (2013.01 - EP KR US); D06N 3/14 (2013.01 - EP KR US); D06N 2205/023 (2013.01 - EP KR US)
Citation (examination)
EP 1958528 A1 20080820 - TORAY INDUSTRIES [JP]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3112530 A1 20170104; EP 3112530 A4 20171011; EP 3112530 B1 20231122; CN 106029976 A 20161012; CN 106029976 B 20180831; JP 6551227 B2 20190731; JP WO2015129602 A1 20170330; KR 102297654 B1 20210906; KR 20160127019 A 20161102; TW 201542635 A 20151116; TW I711660 B 20201201; US 2016362832 A1 20161215; US 2020149216 A1 20200514; WO 2015129602 A1 20150903
DOCDB simple family (application)
EP 15755868 A 20150223; CN 201580010454 A 20150223; JP 2015054941 W 20150223; JP 2015525673 A 20150223; KR 20167024554 A 20150223; TW 104105970 A 20150225; US 201515119025 A 20150223; US 202016741890 A 20200114