(19)
(11) EP 4 519 495 A1

(12)

(43) Date of publication:
12.03.2025 Bulletin 2025/11

(21) Application number: 23723618.7

(22) Date of filing: 27.04.2023
(51) International Patent Classification (IPC): 
D21H 25/00(2006.01)
 D21F 11/12(2006.01)
(52) Cooperative Patent Classification (CPC):
D21F 11/12; D21H 27/02
(86) International application number:
PCT/FI2023/050231
(87) International publication number:
WO 2023/214114 (09.11.2023 Gazette 2023/45)
(84) Designated Contracting States:
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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA
Designated Validation States:
KH MA MD TN

(30) Priority: 02.05.2022 FI 20225377

(71) Applicant: Teknologian tutkimuskeskus VTT Oy
02150 Espoo (FI)

(72) Inventors:
  • RETULAINEN, Elias
    02150 Espoo (FI)
  • KOUKO, Jarmo
    02150 Espoo (FI)

(74) Representative: Laine IP Oy 
Porkkalankatu 24
00180 Helsinki
00180 Helsinki (FI)

   


(54) BOOSTING THE CROSS-MACHINE DIRECTION SHRINKAGE AND EXTENSIBILITY OF A FIBER PRODUCT