Method and apparatus for making an absorbent composite
US7103946B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2003 |
| Grant date | Sep 12, 2006 |
| Priority date | — |
| Expiry date | Jul 22, 2024 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD04H1/732
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for making an absorbent composite from continuous tow is disclosed. The method and apparatus includes the steps of or means for spreading a crimped tow; de-registering the crimped tow; shaping the de-registered tow to a substantially rectangular cross-section; and distributing a particulate onto the shaped tow. The step of or means for de-registering the crimped tow uses at least two pairs of rollers, each pair of rollers having a metal-faced roller and a rubber-face roller. The metal-faced rollers are oppositely disposed between the pair of rollers. Alternatively, the metal-faced rollers are disposed between the pair of rollers on the same side.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.