EP 3816340 A4 20211117 - SHEET-SHAPED ITEM AND MANUFACTURING METHOD THEREFOR
Title (en)
SHEET-SHAPED ITEM AND MANUFACTURING METHOD THEREFOR
Title (de)
BLATTFÖRMIGES ELEMENT UND VERFAHREN ZU SEINER HERSTELLUNG
Title (fr)
ARTICLE EN FORME DE FEUILLE ET SON PROCÉDÉ DE FABRICATION
Publication
Application
Priority
- JP 2018124129 A 20180629
- JP 2018124130 A 20180629
- JP 2019021238 W 20190529
Abstract (en)
[origin: EP3816340A1] A sheet-shaped item including ultrafine fiber bundles that are obtained by gathering a plurality of ultrafine fibers comprising a thermoplastic resin, said sheet-shaped item comprising a base material layer and a nap layer, wherein the base material layer is a fiber entanglement comprising ultrafine fiber bundles, the nap layer has a nap consisting of ultrafine fibers on at least one surface of the sheet-shaped item, and the sheet-shaped item satisfies all of the following conditions (1)-(3). (1) The average single-fiber diameter of the ultrafine fibers is 0.1 µm to 10µm. (2) Among the ultrafine fibers, the average fiber length of the ultrafine fibers in the nap layer is 250µm to 500µm. (3) The surface coverage of the ultrafine fibers in the nap layer is 60% to 100%. A sheet-shaped item with a fine surface and superior glossiness is thus provided.
IPC 8 full level
D06N 3/00 (2006.01); D04H 1/4382 (2012.01); D04H 1/46 (2012.01); D04H 1/482 (2012.01); D04H 1/498 (2012.01); D04H 1/72 (2012.01); D04H 11/08 (2006.01); D06C 11/00 (2006.01); D06M 15/564 (2006.01); D06M 15/643 (2006.01); D06N 3/10 (2006.01); D06N 3/14 (2006.01); D06N 3/18 (2006.01)
CPC (source: EP KR)
D04H 1/43825 (2020.05 - EP); D04H 1/46 (2013.01 - EP); D04H 1/482 (2013.01 - EP); D04H 1/498 (2013.01 - EP); D04H 1/72 (2013.01 - EP); D04H 11/08 (2013.01 - EP); D06C 11/00 (2013.01 - KR); D06C 13/00 (2013.01 - KR); D06M 15/564 (2013.01 - KR); D06M 15/643 (2013.01 - EP KR); D06N 3/0004 (2013.01 - EP); D06N 3/0006 (2013.01 - EP); D06N 3/0009 (2013.01 - EP); D06N 3/0011 (2013.01 - EP); D06N 3/0013 (2013.01 - EP); D06N 3/004 (2013.01 - KR); D06N 3/0075 (2013.01 - EP); D06N 3/106 (2013.01 - EP); D06N 3/14 (2013.01 - EP); D06N 3/183 (2013.01 - EP); D06N 3/186 (2013.01 - EP); D06C 11/00 (2013.01 - EP)
Citation (search report)
- [XI] JP 2017133134 A 20170803 - TORAY INDUSTRIES
- [XDI] JP 2016047560 A 20160407 - TORAY INDUSTRIES
- [ID] JP 2015209594 A 20151124 - TORAY INDUSTRIES
- See references of WO 2020003866A1
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 3816340 A1 20210505; EP 3816340 A4 20211117; CN 112218982 A 20210112; JP WO2020003866 A1 20210708; KR 20210022551 A 20210303; TW 202016386 A 20200501; WO 2020003866 A1 20200102
DOCDB simple family (application)
EP 19824962 A 20190529; CN 201980036992 A 20190529; JP 2019021238 W 20190529; JP 2020527305 A 20190529; KR 20207034250 A 20190529; TW 108122398 A 20190626