Article having microporous body part, production method of ink medium, diffusion method of sulfur-containing organic acid into microporous layer, production method of article having meicroporous body part, and inkjet recording medium produced therefrom
US7867586B2 · kind B2 · utility
14Cited by
39References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 4, 2006 |
| Grant date | Jan 11, 2011 |
| Priority date | — |
| Expiry date | Sep 25, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41M5/5227
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Provided is an inkjet recording medium in which hydrated alumina and a sulfinic acid compound or thiosulfonic acid compound coexist in a pigment in an ink receiving layer, and which can prevent white-background yellowing during storage in a resin file holder or the like and ensure printing quality at the same time. The ink receiving layer of the inkjet recording medium contains the sulfinic acid compound or thiosulfonic acid compound, which functions to prevent yellowing, in a salt form or in a free form so as to be diffusible.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.