Method for cleaning an ink holding material
US6086191A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 1996 |
| Grant date | Jul 11, 2000 |
| Priority date | — |
| Expiry date | May 15, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/17513
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Disclosed is an ink holding material to be put in an ink tank of an ink jet recording device, which is such that when it is extracted with pure water, the electrical conductivities and the surface tensions of the water before and after the extraction satisfy relationship (1): EQU 350 .gtoreq..gamma.r/.sigma.r-.gamma.s/.sigma.s.gtoreq.0 (1) wherein .gamma.r represents the surface tension (mN/m) of pure water before extraction; .sigma.r represents the electrical conductivity (mS/m) of pure water before extraction; .gamma.s represents the surface tension (mN/m) of pure water after extraction; and .sigma.s represents the electrical conductivity (mS/m) of pure water after extraction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.