Radiation imagery chemistry: process – composition – or product th – Silver halide colloid tanning process – composition – or product
Patent
1986-05-23
1988-04-12
Michl, Paul R.
Radiation imagery chemistry: process, composition, or product th
Silver halide colloid tanning process, composition, or product
430566, G03C 106, G03C 524
Patent
active
047374411
ABSTRACT:
A photographic material for tanning development which comprises a photographic support base, at least one tannable binder material, at least one silver halide emulsion and at least one pigment, said material including a 3-pyrazolidone compound and at least two different 1,4-dihydroxybenzene compounds, the first of which is chosen within the group of those having a standard tanning development time (STDT) of one fourth to twice the hydroquinone STDT (STDTHy) and the second of which is chosen within the group of those having a STDT of one fourth to fifteen times the STDTHy.
Most preferably, the above photographic material includes hydroquinone in addition to the 3-pyrazolidone compound and the two 1,4-dihydroxybenzene compounds, wherein the first 1,4-dihydroxybenzene compound, other than hydroquinone, is chosen within the group of those having a STDT of one fourth to twice the STDTHy and the second 1,4-dihydroxybenzene compound is chosen within the group of those having a STDT of two to fifteen times the STDTHy.
A method to obtain relief images by using the above said photographic material.
REFERENCES:
patent: 3143414 (1964-08-01), Yackel et al.
patent: 3300307 (1967-01-01), Smith, Jr.
patent: 3364024 (1968-01-01), Yackel et al.
patent: 4269929 (1981-05-01), Nothnagle
patent: 4283479 (1981-08-01), Hamaoka et al.
patent: 4299909 (1981-11-01), Imatomi et al.
patent: 4369245 (1983-01-01), Beruto et al.
patent: 4504572 (1985-03-01), Beruto et al.
Beruto Marco
Luzzi Antonio
Ramello Piero
Buscher Mark R.
Litman Mark A.
Michl Paul R.
Minnesota Mining and Manufacturing Company
Sell Donald M.
LandOfFree
Photographic material for tanning development and method for obt does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Photographic material for tanning development and method for obt, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photographic material for tanning development and method for obt will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1429201