Method for manufacturing inorganic particle composite fiber sheet
US11268241B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 19, 2018 |
| Grant date | Mar 8, 2022 |
| Priority date | — |
| Expiry date | Mar 19, 2038 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H27/30
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention provides a method for reducing web break caused in preparing, by continuous paper making, a fiber sheet containing a high content of functional inorganic substance. The composite fiber sheet manufacturing method includes: generating composite fibers composed of cellulosic fibers and inorganic particles by synthesizing the inorganic particles in slurry containing the cellulosic fibers; and continuously generating a sheet by supplying composite-fiber-containing slurry including the composite fibers to a continuous paper machine. In the composite fiber generating step, at least one of (i) slurry containing cellulosic fibers having a length of 1.2 mm to 2.0 mm in an amount of 16% or more in terms of length-weighted fiber length distribution (%) and (ii) slurry containing cellulosic fibers having a length of 1.2 mm to 3.2 mm in an amount of 30% or more in terms of length-weighted fiber length distribution (%) is used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.