Abstract: Fiber sheets, structures comprising the fiber sheets and the use of the sheets. The invention further relates to biodegradable and/or recyclable products comprising the fiber sheets, useful in replacing non-biodegradable products.
Type:
Grant
Filed:
November 19, 2019
Date of Patent:
February 2, 2021
Assignee:
PAPTIC LTD
Inventors:
Esa Torniainen, Tuomas Mustonen, Karita Kinnunen, Tuomo Hjelt
Abstract: The present invention relates to a method of manufacturing a fibre web which includes a fibre matrix that is comprised of natural fibres and possibly synthetic fibres. According to the present method, an aqueous, planar fibre layer is prepared from the natural fibres and possible synthetic fibres, which layer comprises an aqueous phase and a fibrous phase, and which layer is dried in order to remove the aqueous phase, in which case the natural fibres and possible synthetic fibres together form a fibre matrix. According to the present invention, binder is applied onto the water-containing fibre layer, which binder is allowed to penetrate via the aqueous phase at least partially in between the fibres, before the hydrogen bonds between the fibres form. With the present invention, it is possible to manufacture such cellulose or lignocellulose-based fibre products which have plastic-like properties, such as good fracture toughness, tear resistance and stretching.
Type:
Grant
Filed:
March 24, 2017
Date of Patent:
December 15, 2020
Assignee:
Paptic Ltd
Inventors:
Karita Kinnunen-Raudaskoski, Esa Torniainen, Tuomas Mustonen, Marja Juvonen
Abstract: The invention relates to fiber sheets, to structures comprising the fiber sheets and to the use of the sheets. The invention further relates to biodegradable and/or recyclable products comprising the fiber sheets, useful in replacing non-biodegradable products.
Type:
Grant
Filed:
November 20, 2015
Date of Patent:
November 19, 2019
Assignee:
PAPTIC LTD
Inventors:
Esa Torniainen, Tuomas Mustonen, Karita Kinnunen, Tuomo Hjelt