Material for industrial radiography and development method thereof
US5660966A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 15, 1996 |
| Grant date | Aug 26, 1997 |
| Priority date | — |
| Expiry date | Jul 15, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C1/42
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A silver halide photographic material for industrial radiography is disclosed comprising a film support and on one or both sides thereof at least one silver halide emulsion layer which is characterized in that each gelatino silver halide emulsion layer comprises as silver halide silver chloride or silver chlorobromide wherein the amount of bromide is not more than 10 mole %; has a gelatin to silver halide (expressed as silver nitrate) ratio from 0.2 to 0.6 and a total amount of silver halide corresponding to from 11 g to 35 g of silver/m.sup.2 and in that the photographic material has been fore-hardened to such an extent that when it is immersed in demineralized water of 25.degree. C. for 3 minutes there is not absorbed more than 3.0 g of water per gram of gelatin, and wherein said material further comprises a dihydroxybenzene compound and a 3-pyrazolidine-1-one compound as developing agents. Moreover a method for developing a radiographically exposed photographic material is disclosed comprising the step of contacting the exposed photographic material with an aqueous alkaline liquid, called activator liquid, being initially substantially free from developing agent(s), having a pH …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.