Immersible oxygen absorbing capsule for ink jet fluid supply
US4489334A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 9, 1982 |
| Grant date | Dec 18, 1984 |
| Priority date | — |
| Expiry date | Jun 9, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/19
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An oxygen absorbing capsule containing an oxygen absorbing material for use in an ink jet printing device is provided. The capsule wall is formed of a resinous material insoluble in the ink composition, but having a large permeability to gases so that oxgyen may be absorbed from the solution. The oxygen absorbing material is preferably an aqueous solution of a salt of pyrogallol. The capsule may be positioned in an ink tank, an ink supply tube or in an ink ejection head of an ink jet recording device for absorbing oxygen from the ink composition. Stable printing, free from nozzle clogging, can thus be carried out for extended intervals of time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.