EP 1611286 B1 20060830 - PRODUCTION METHOD FOR AN ABSORBENT FIBRE PRODUCT AND CORRESPONDING ABSORBENT FIBRE PRODUCT
Title (en)
PRODUCTION METHOD FOR AN ABSORBENT FIBRE PRODUCT AND CORRESPONDING ABSORBENT FIBRE PRODUCT
Title (de)
HERSTELLUNGSVERFAHREN FÜR ABSORBIERENDES FASERPRODUKT UND ABSORBIERENDES FASERPRODUKT
Title (fr)
PROCEDE DE PRODUCTION D'UN PRODUIT FIBREUX ABSORBANT ET PRODUIT FIBREUX ABSORBANT
Publication
Application
Priority
- DE 2004000452 W 20040309
- DE 10312758 A 20030321
Abstract (en)
[origin: US2007160835A1] The invention relates to a method for producing an absorbent fiber product, starting with a parent fiber product that comprises fibers that, on the one hand, lie at a statistical distance from one another and, on the other hand, make contact with one another at contact points. The method comprises treating the parent fiber product with a fluid medium in such a way that the fibers are at least partially wetted and the fluid medium is then rapidly evaporated by irradiation, so that the evaporation pressure generated by the evaporating fluid medium has a kinematic effect on the fibers, which increases the distance between them. In this way the risk of inadvertent, in particular, thermal damage to the fibers is eliminated. Furthermore, the intrinsic fiber structure is left unaffected, or is only affected in a controlled manner. This prevents the uncontrolled destruction of the fiber structure and a detrimental effect on the fiber product, for example, to its tear resistance when wet. Instead, the proposed method achieves an expansion of the fiber product on a microscopic scale by increasing the distance between the fibers. In a further embodiment, the intrinsic fiber structure can be controlled and affected in a targeted manner if necessary, by controlling the time period between the wetting of the fibers and the evaporation of the fluid medium.
IPC 8 full level
D21H 25/06 (2006.01)
CPC (source: EP US)
D21H 25/06 (2013.01 - EP US); Y10T 428/29 (2015.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
US 2007160835 A1 20070712; US 7758722 B2 20100720; AT E338166 T1 20060915; DE 10312758 A1 20040930; DE 502004001355 D1 20061012; EP 1611286 A1 20060104; EP 1611286 B1 20060830; WO 2004083523 A1 20040930
DOCDB simple family (application)
US 54976504 A 20040309; AT 04718616 T 20040309; DE 10312758 A 20030321; DE 2004000452 W 20040309; DE 502004001355 T 20040309; EP 04718616 A 20040309