Producing filler material, particularly for cigarette filters
US4528050A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 1982 |
| Grant date | Jul 9, 1985 |
| Priority date | — |
| Expiry date | Jul 30, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S83/913
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Filler material, particularly for cigarette filters, is produced by feeding a first stream of substantially continuous filaments of filler material onto a pin roller which is driven at a speed such that the filaments are broken by the pins into irregular lengths and are projected from the roller in random orientations. The broken filaments are collected on a carrier stream, also comprising filamentary material, for delivery to a rod-making unit. More than one stream could be supplied to the pin roller so that the broken filaments can comprise a mixture of filaments of different filler materials. The carrier stream may comprise filler material which is different from that in the first stream and may comprise a fibrillated web.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.