Invention Grant
- Patent Title: Method of forming a fibrous product
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Application No.: US15021708Application Date: 2014-09-15
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Publication No.: US10259151B2Publication Date: 2019-04-16
- Inventor: Harri Kiiskinen , Esa Torniainen , Karita Kinnunen
- Applicant: Teknologian tutkimuskeskus VTT Oy
- Applicant Address: FI Espoo
- Assignee: Teknologian tutkimuskeskus VTT Oy
- Current Assignee: Teknologian tutkimuskeskus VTT Oy
- Current Assignee Address: FI Espoo
- Agency: Seppo Laine Oy
- Priority: FI20135922 20130913
- International Application: PCT/FI2014/050704 WO 20140915
- International Announcement: WO2015/036659 WO 20150319
- Main IPC: D21J3/00
- IPC: D21J3/00 ; B29C44/02 ; B29C44/06 ; D21F11/00 ; D21H11/00 ; D21H17/09 ; D21H21/24 ; B29C44/58 ; B29C44/34 ; B29C67/20 ; D21H21/56 ; B29K25/00 ; B29L31/00 ; B29K105/00 ; B29K105/04 ; B29K105/16 ; B29K401/00 ; B29K501/12
Abstract:
The present invention relates to a method of forming a molded fibrous product, comprising the steps of foaming an aqueous suspension of natural fibers, optionally in combination with synthetic fibers, to provide a first fibrous foam, a surfactant may be added to aid the foaming, feeding the fibrous foam into a mold, mechanically withdrawing a part of the water contained in the foam to produce a solidified, moist fibrous composition, and evaporating water from the solidified, moist fibrous composition to produce a dry fibrous product.
Public/Granted literature
- US20160221233A1 Method of forming a fibrous product Public/Granted day:2016-08-04
Information query
