US3645739A - Thermally developable light-sensitive elements - Google Patents
Thermally developable light-sensitive elements Download PDFInfo
- Publication number
- US3645739A US3645739A US617498A US3645739DA US3645739A US 3645739 A US3645739 A US 3645739A US 617498 A US617498 A US 617498A US 3645739D A US3645739D A US 3645739DA US 3645739 A US3645739 A US 3645739A
- Authority
- US
- United States
- Prior art keywords
- acid
- silver
- light
- sensitive element
- weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- -1 silver halide Chemical class 0.000 claims abstract description 25
- QDTXQUWFFXXBDP-UHFFFAOYSA-N N1N=NC2=C1C=CC=C2[Ag] Chemical compound N1N=NC2=C1C=CC=C2[Ag] QDTXQUWFFXXBDP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 15
- 150000007524 organic acids Chemical class 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims description 13
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 13
- 229910052721 tungsten Inorganic materials 0.000 claims description 13
- 239000010937 tungsten Substances 0.000 claims description 13
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 claims description 12
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 claims description 12
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 claims description 12
- LNTHITQWFMADLM-UHFFFAOYSA-N gallic acid Chemical compound OC(=O)C1=CC(O)=C(O)C(O)=C1 LNTHITQWFMADLM-UHFFFAOYSA-N 0.000 claims description 10
- WPYMKLBDIGXBTP-UHFFFAOYSA-N Benzoic acid Natural products OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 claims description 9
- 235000010233 benzoic acid Nutrition 0.000 claims description 8
- UKMSUNONTOPOIO-UHFFFAOYSA-N docosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCCCC(O)=O UKMSUNONTOPOIO-UHFFFAOYSA-N 0.000 claims description 8
- 229910052739 hydrogen Inorganic materials 0.000 claims description 8
- 239000001257 hydrogen Substances 0.000 claims description 8
- 239000005711 Benzoic acid Substances 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 230000033116 oxidation-reduction process Effects 0.000 claims description 7
- 239000005639 Lauric acid Substances 0.000 claims description 6
- 235000021314 Palmitic acid Nutrition 0.000 claims description 6
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 claims description 6
- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 claims description 6
- 150000001558 benzoic acid derivatives Chemical class 0.000 claims description 5
- 229940074391 gallic acid Drugs 0.000 claims description 5
- 235000004515 gallic acid Nutrition 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- TUNFSRHWOTWDNC-HKGQFRNVSA-N tetradecanoic acid Chemical compound CCCCCCCCCCCCC[14C](O)=O TUNFSRHWOTWDNC-HKGQFRNVSA-N 0.000 claims description 5
- WXTMDXOMEHJXQO-UHFFFAOYSA-N 2,5-dihydroxybenzoic acid Chemical compound OC(=O)C1=CC(O)=CC=C1O WXTMDXOMEHJXQO-UHFFFAOYSA-N 0.000 claims description 4
- 235000021357 Behenic acid Nutrition 0.000 claims description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 4
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 4
- 235000021355 Stearic acid Nutrition 0.000 claims description 4
- 229910052783 alkali metal Inorganic materials 0.000 claims description 4
- 229940116226 behenic acid Drugs 0.000 claims description 4
- 125000005843 halogen group Chemical group 0.000 claims description 4
- 150000002431 hydrogen Chemical class 0.000 claims description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 4
- VKOBVWXKNCXXDE-UHFFFAOYSA-N icosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCC(O)=O VKOBVWXKNCXXDE-UHFFFAOYSA-N 0.000 claims description 4
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 4
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 4
- 239000008117 stearic acid Substances 0.000 claims description 4
- 125000001424 substituent group Chemical group 0.000 claims description 4
- RTBFRGCFXZNCOE-UHFFFAOYSA-N 1-methylsulfonylpiperidin-4-one Chemical compound CS(=O)(=O)N1CCC(=O)CC1 RTBFRGCFXZNCOE-UHFFFAOYSA-N 0.000 claims description 3
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 claims description 3
- 239000001361 adipic acid Substances 0.000 claims description 3
- 235000011037 adipic acid Nutrition 0.000 claims description 3
- 125000001931 aliphatic group Chemical group 0.000 claims description 3
- JFCQEDHGNNZCLN-UHFFFAOYSA-N anhydrous glutaric acid Natural products OC(=O)CCCC(O)=O JFCQEDHGNNZCLN-UHFFFAOYSA-N 0.000 claims description 3
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 claims description 3
- WCYWZMWISLQXQU-UHFFFAOYSA-N methyl Chemical compound [CH3] WCYWZMWISLQXQU-UHFFFAOYSA-N 0.000 claims description 3
- ZWLPBLYKEWSWPD-UHFFFAOYSA-N o-toluic acid Chemical compound CC1=CC=CC=C1C(O)=O ZWLPBLYKEWSWPD-UHFFFAOYSA-N 0.000 claims description 3
- QAOJBHRZQQDFHA-UHFFFAOYSA-N 2,3-dichlorobenzoic acid Chemical compound OC(=O)C1=CC=CC(Cl)=C1Cl QAOJBHRZQQDFHA-UHFFFAOYSA-N 0.000 claims description 2
- 229910001505 inorganic iodide Inorganic materials 0.000 claims description 2
- 150000002762 monocarboxylic acid derivatives Chemical class 0.000 claims description 2
- 229910052709 silver Inorganic materials 0.000 abstract description 16
- 239000004332 silver Substances 0.000 abstract description 16
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 150000003839 salts Chemical class 0.000 abstract description 4
- 150000004820 halides Chemical class 0.000 abstract description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 21
- GGCZERPQGJTIQP-UHFFFAOYSA-N sodium;9,10-dioxoanthracene-2-sulfonic acid Chemical compound [Na+].C1=CC=C2C(=O)C3=CC(S(=O)(=O)O)=CC=C3C(=O)C2=C1 GGCZERPQGJTIQP-UHFFFAOYSA-N 0.000 description 21
- 239000000203 mixture Substances 0.000 description 18
- 239000006185 dispersion Substances 0.000 description 16
- 125000004432 carbon atom Chemical group C* 0.000 description 11
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 10
- 230000001235 sensitizing effect Effects 0.000 description 10
- 238000012545 processing Methods 0.000 description 9
- 239000002253 acid Substances 0.000 description 8
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 8
- 239000000243 solution Substances 0.000 description 8
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 6
- 239000011230 binding agent Substances 0.000 description 6
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Chemical compound [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 description 6
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 description 6
- 239000007864 aqueous solution Substances 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 5
- 239000004615 ingredient Substances 0.000 description 5
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 239000012964 benzotriazole Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- WQGWDDDVZFFDIG-UHFFFAOYSA-N pyrogallol Chemical compound OC1=CC=CC(O)=C1O WQGWDDDVZFFDIG-UHFFFAOYSA-N 0.000 description 4
- KRIJWFBRWPCESA-UHFFFAOYSA-L strontium iodide Chemical compound [Sr+2].[I-].[I-] KRIJWFBRWPCESA-UHFFFAOYSA-L 0.000 description 4
- 229910001643 strontium iodide Inorganic materials 0.000 description 4
- 108010010803 Gelatin Proteins 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 206010034960 Photophobia Diseases 0.000 description 3
- 206010070834 Sensitisation Diseases 0.000 description 3
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 239000008273 gelatin Substances 0.000 description 3
- 229920000159 gelatin Polymers 0.000 description 3
- 235000019322 gelatine Nutrition 0.000 description 3
- 235000011852 gelatine desserts Nutrition 0.000 description 3
- 229910001502 inorganic halide Inorganic materials 0.000 description 3
- 208000013469 light sensitivity Diseases 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- CVHZOJJKTDOEJC-UHFFFAOYSA-N saccharin Chemical compound C1=CC=C2C(=O)NS(=O)(=O)C2=C1 CVHZOJJKTDOEJC-UHFFFAOYSA-N 0.000 description 3
- 235000019204 saccharin Nutrition 0.000 description 3
- 230000008313 sensitization Effects 0.000 description 3
- 229910001961 silver nitrate Inorganic materials 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000000080 wetting agent Substances 0.000 description 3
- GLDQAMYCGOIJDV-UHFFFAOYSA-N 2,3-dihydroxybenzoic acid Chemical compound OC(=O)C1=CC=CC(O)=C1O GLDQAMYCGOIJDV-UHFFFAOYSA-N 0.000 description 2
- UIAFKZKHHVMJGS-UHFFFAOYSA-N 2,4-dihydroxybenzoic acid Chemical compound OC(=O)C1=CC=C(O)C=C1O UIAFKZKHHVMJGS-UHFFFAOYSA-N 0.000 description 2
- CDAWCLOXVUBKRW-UHFFFAOYSA-N 2-aminophenol Chemical compound NC1=CC=CC=C1O CDAWCLOXVUBKRW-UHFFFAOYSA-N 0.000 description 2
- TWJNQYPJQDRXPH-UHFFFAOYSA-N 2-cyanobenzohydrazide Chemical compound NNC(=O)C1=CC=CC=C1C#N TWJNQYPJQDRXPH-UHFFFAOYSA-N 0.000 description 2
- XCZKKZXWDBOGPA-UHFFFAOYSA-N 2-phenylbenzene-1,4-diol Chemical compound OC1=CC=C(O)C(C=2C=CC=CC=2)=C1 XCZKKZXWDBOGPA-UHFFFAOYSA-N 0.000 description 2
- PLIKAWJENQZMHA-UHFFFAOYSA-N 4-aminophenol Chemical compound NC1=CC=C(O)C=C1 PLIKAWJENQZMHA-UHFFFAOYSA-N 0.000 description 2
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- SUHBHPSJNDVODN-UHFFFAOYSA-N C1(=CC=CC=2C3=CC=CC=C3NC12)[Ag] Chemical compound C1(=CC=CC=2C3=CC=CC=C3NC12)[Ag] SUHBHPSJNDVODN-UHFFFAOYSA-N 0.000 description 2
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Chemical compound NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 description 2
- WTDHULULXKLSOZ-UHFFFAOYSA-N Hydroxylamine hydrochloride Chemical compound Cl.ON WTDHULULXKLSOZ-UHFFFAOYSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 235000021360 Myristic acid Nutrition 0.000 description 2
- TUNFSRHWOTWDNC-UHFFFAOYSA-N Myristic acid Natural products CCCCCCCCCCCCCC(O)=O TUNFSRHWOTWDNC-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- OKIIEJOIXGHUKX-UHFFFAOYSA-L cadmium iodide Chemical compound [Cd+2].[I-].[I-] OKIIEJOIXGHUKX-UHFFFAOYSA-L 0.000 description 2
- YCIMNLLNPGFGHC-UHFFFAOYSA-N catechol Chemical compound OC1=CC=CC=C1O YCIMNLLNPGFGHC-UHFFFAOYSA-N 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- AJPXTSMULZANCB-UHFFFAOYSA-N chlorohydroquinone Chemical compound OC1=CC=C(O)C(Cl)=C1 AJPXTSMULZANCB-UHFFFAOYSA-N 0.000 description 2
- GHVNFZFCNZKVNT-UHFFFAOYSA-N decanoic acid Chemical compound CCCCCCCCCC(O)=O GHVNFZFCNZKVNT-UHFFFAOYSA-N 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical group 0.000 description 2
- XMHIUKTWLZUKEX-UHFFFAOYSA-N hexacosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCCCCCCCC(O)=O XMHIUKTWLZUKEX-UHFFFAOYSA-N 0.000 description 2
- 239000006224 matting agent Substances 0.000 description 2
- 235000005985 organic acids Nutrition 0.000 description 2
- 150000002894 organic compounds Chemical class 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 229940079877 pyrogallol Drugs 0.000 description 2
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 description 2
- 229940081974 saccharin Drugs 0.000 description 2
- 239000000901 saccharin and its Na,K and Ca salt Substances 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
- CNHDIAIOKMXOLK-UHFFFAOYSA-N toluquinol Chemical compound CC1=CC(O)=CC=C1O CNHDIAIOKMXOLK-UHFFFAOYSA-N 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- OWRCNXZUPFZXOS-UHFFFAOYSA-N 1,3-diphenylguanidine Chemical compound C=1C=CC=CC=1NC(=N)NC1=CC=CC=C1 OWRCNXZUPFZXOS-UHFFFAOYSA-N 0.000 description 1
- 229940082044 2,3-dihydroxybenzoic acid Drugs 0.000 description 1
- VPMMJSPGZSFEAH-UHFFFAOYSA-N 2,4-diaminophenol;hydrochloride Chemical compound [Cl-].NC1=CC=C(O)C([NH3+])=C1 VPMMJSPGZSFEAH-UHFFFAOYSA-N 0.000 description 1
- IKQCSJBQLWJEPU-UHFFFAOYSA-N 2,5-dihydroxybenzenesulfonic acid Chemical compound OC1=CC=C(O)C(S(O)(=O)=O)=C1 IKQCSJBQLWJEPU-UHFFFAOYSA-N 0.000 description 1
- VZSRBBMJRBPUNF-UHFFFAOYSA-N 2-(2,3-dihydro-1H-inden-2-ylamino)-N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]pyrimidine-5-carboxamide Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C(=O)NCCC(N1CC2=C(CC1)NN=N2)=O VZSRBBMJRBPUNF-UHFFFAOYSA-N 0.000 description 1
- JHKKTXXMAQLGJB-UHFFFAOYSA-N 2-(methylamino)phenol Chemical compound CNC1=CC=CC=C1O JHKKTXXMAQLGJB-UHFFFAOYSA-N 0.000 description 1
- REFDOIWRJDGBHY-UHFFFAOYSA-N 2-bromobenzene-1,4-diol Chemical compound OC1=CC=C(O)C(Br)=C1 REFDOIWRJDGBHY-UHFFFAOYSA-N 0.000 description 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 1
- IBWXIFXUDGADCV-UHFFFAOYSA-N 2h-benzotriazole;silver Chemical compound [Ag].C1=CC=C2NN=NC2=C1 IBWXIFXUDGADCV-UHFFFAOYSA-N 0.000 description 1
- GOLXRNDWAUTYKT-UHFFFAOYSA-N 3-(1H-indol-3-yl)propanoic acid Chemical compound C1=CC=C2C(CCC(=O)O)=CNC2=C1 GOLXRNDWAUTYKT-UHFFFAOYSA-N 0.000 description 1
- WZXGGQHFVGTZQB-UHFFFAOYSA-N 4-amino-2-methoxyphenol;hydrochloride Chemical compound Cl.COC1=CC(N)=CC=C1O WZXGGQHFVGTZQB-UHFFFAOYSA-N 0.000 description 1
- FULOTKQZFAERET-UHFFFAOYSA-N 4-n,4-n-diethylbenzene-1,4-diamine;sulfurous acid Chemical compound OS(O)=O.CCN(CC)C1=CC=C(N)C=C1 FULOTKQZFAERET-UHFFFAOYSA-N 0.000 description 1
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- GGZZISOUXJHYOY-UHFFFAOYSA-N 8-amino-4-hydroxynaphthalene-2-sulfonic acid Chemical compound C1=C(S(O)(=O)=O)C=C2C(N)=CC=CC2=C1O GGZZISOUXJHYOY-UHFFFAOYSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
- GUBGYTABKSRVRQ-XLOQQCSPSA-N Alpha-Lactose Chemical compound O[C@@H]1[C@@H](O)[C@@H](O)[C@@H](CO)O[C@H]1O[C@@H]1[C@@H](CO)O[C@H](O)[C@H](O)[C@H]1O GUBGYTABKSRVRQ-XLOQQCSPSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 239000005632 Capric acid (CAS 334-48-5) Substances 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 description 1
- 239000001856 Ethyl cellulose Substances 0.000 description 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- 239000004471 Glycine Substances 0.000 description 1
- GUBGYTABKSRVRQ-QKKXKWKRSA-N Lactose Natural products OC[C@H]1O[C@@H](O[C@H]2[C@H](O)[C@@H](O)C(O)O[C@@H]2CO)[C@H](O)[C@@H](O)[C@H]1O GUBGYTABKSRVRQ-QKKXKWKRSA-N 0.000 description 1
- OYHQOLUKZRVURQ-HZJYTTRNSA-N Linoleic acid Chemical compound CCCCC\C=C/C\C=C/CCCCCCCC(O)=O OYHQOLUKZRVURQ-HZJYTTRNSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 229920002367 Polyisobutene Polymers 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 235000010724 Wisteria floribunda Nutrition 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 150000007933 aliphatic carboxylic acids Chemical class 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- SWLVFNYSXGMGBS-UHFFFAOYSA-N ammonium bromide Chemical compound [NH4+].[Br-] SWLVFNYSXGMGBS-UHFFFAOYSA-N 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- SGUXGJPBTNFBAD-UHFFFAOYSA-L barium iodide Chemical compound [I-].[I-].[Ba+2] SGUXGJPBTNFBAD-UHFFFAOYSA-L 0.000 description 1
- 229910001638 barium iodide Inorganic materials 0.000 description 1
- 229940075444 barium iodide Drugs 0.000 description 1
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Chemical compound [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 description 1
- 229910001864 baryta Inorganic materials 0.000 description 1
- 150000001559 benzoic acids Chemical class 0.000 description 1
- 150000001565 benzotriazoles Chemical class 0.000 description 1
- 125000003354 benzotriazolyl group Chemical group N1N=NC2=C1C=CC=C2* 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 1
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 1
- 229940114055 beta-resorcylic acid Drugs 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- PLLZRTNVEXYBNA-UHFFFAOYSA-L cadmium hydroxide Chemical compound [OH-].[OH-].[Cd+2] PLLZRTNVEXYBNA-UHFFFAOYSA-L 0.000 description 1
- 229940075417 cadmium iodide Drugs 0.000 description 1
- 229910052792 caesium Inorganic materials 0.000 description 1
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 229920006217 cellulose acetate butyrate Polymers 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010908 decantation Methods 0.000 description 1
- NCXUIEDQTCQZRK-UHFFFAOYSA-L disodium;decanedioate Chemical compound [Na+].[Na+].[O-]C(=O)CCCCCCCCC([O-])=O NCXUIEDQTCQZRK-UHFFFAOYSA-L 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 229920001249 ethyl cellulose Polymers 0.000 description 1
- 235000019325 ethyl cellulose Nutrition 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000008098 formaldehyde solution Substances 0.000 description 1
- 229960005219 gentisic acid Drugs 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 1
- NWVVVBRKAWDGAB-UHFFFAOYSA-N hydroquinone methyl ether Natural products COC1=CC=C(O)C=C1 NWVVVBRKAWDGAB-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 150000002440 hydroxy compounds Chemical class 0.000 description 1
- 125000001841 imino group Chemical group [H]N=* 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 239000008101 lactose Substances 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 1
- 229960004232 linoleic acid Drugs 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- PCILLCXFKWDRMK-UHFFFAOYSA-N naphthalene-1,4-diol Chemical compound C1=CC=C2C(O)=CC=C(O)C2=C1 PCILLCXFKWDRMK-UHFFFAOYSA-N 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- NDGRWYRVNANFNB-UHFFFAOYSA-N pyrazolidin-3-one Chemical compound O=C1CCNN1 NDGRWYRVNANFNB-UHFFFAOYSA-N 0.000 description 1
- 150000003378 silver Chemical class 0.000 description 1
- KYKFCSHPTAVNJD-UHFFFAOYSA-L sodium adipate Chemical compound [Na+].[Na+].[O-]C(=O)CCCCC([O-])=O KYKFCSHPTAVNJD-UHFFFAOYSA-L 0.000 description 1
- 239000001601 sodium adipate Substances 0.000 description 1
- 235000011049 sodium adipate Nutrition 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
- CHLCPTJLUJHDBO-UHFFFAOYSA-M sodium;benzenesulfinate Chemical compound [Na+].[O-]S(=O)C1=CC=CC=C1 CHLCPTJLUJHDBO-UHFFFAOYSA-M 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- UGZADUVQMDAIAO-UHFFFAOYSA-L zinc hydroxide Chemical compound [OH-].[OH-].[Zn+2] UGZADUVQMDAIAO-UHFFFAOYSA-L 0.000 description 1
- 229940007718 zinc hydroxide Drugs 0.000 description 1
- 229910021511 zinc hydroxide Inorganic materials 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C1/00—Photosensitive materials
- G03C1/494—Silver salt compositions other than silver halide emulsions; Photothermographic systems ; Thermographic systems using noble metal compounds
- G03C1/498—Photothermographic systems, e.g. dry silver
- G03C1/49836—Additives
- G03C1/49845—Active additives, e.g. toners, stabilisers, sensitisers
Definitions
- the present invention relates to a light-sensitive element and more particularly to a light-sensitive element capable of forming images by heating.
- the light-sensitive element most widely used is a photographic light-sensitive element in which a silver halide is used, since such a photographic silver-halide light-sensitive element is excellent in sensitivity and gradation as compared with electrophotographic light-sensitive elements and other photographic light-sensitive elements.
- a photographic silver-halide light-sensitive element is excellent in sensitivity and gradation as compared with electrophotographic light-sensitive elements and other photographic light-sensitive elements.
- the latter processings are generally called stopping, fixing" and stabilizing in a usual photographic method. Therefore, it is very desirable from the simplicity of processings to obtain an image by a dry developing method and to provide the permanent image while omitting fixing and other processes.
- the present invention is concerned with a photographic light-sensitive element containing a combination of a light-insensitive and reducible organic silver salt and a slight amount of a light-sensitive silver salt, and more particularly a photographic light-sensitive element containing a benzotriazolyl silver and a slight amount of a silver halide.
- an object of the present invention is to provide a novel photographic light-sensitive composition.
- Another object of the present invention is to provide a novel image-reproducing method.
- Still another object of the present invention is to provide a dry-type processing for conducting development by only heating without using any solutions in the developing process.
- a further object of the present invention is to provide a light-sensitive element which can provide an image stable to light and capable of being stored almost substantially without subjecting the developed image to fixing and other processings.
- the thermally developable light-sensitive element of the present invention having a light-sensitive layer containing a combination of a light-insensitive and reducible organic silver salt and a slight amount of a light-sensitive silver salt such as a silver halide.
- the thermally developable light-sensitive element according to the present invention comprises a support bearing at least one layer containing at least (a) a light-insensitive and reducible organic silver salt, (b) an inorganic halide capable of forming a light-sensitive silver halide by the reaction with the light-insensitive and reducible organic salt, (c) a reducing agent, and (d) at least one member selected from the group consisting of an organic acid or a salt thereof together with a suitable binder.
- silver salts of organic compounds having imino group such as a silver salt of benzotriazole or a silver salt of halogenor nitro-substituted benzotriazole; carbazolyl silver; and silver salt of saccharin (o-sulfobenzoic acid imide).
- the silver salt of halogenor nitro-substituted benzotriazole is noninsensitive but the thermal development thereof is difficult. That is, the power of the silver salt to be reduced is weak.
- Carbazolyl silver is also difficult to be developed by heating.
- silver salt of saccharin can be developed thermally but the contrast between image and background is low, that is, the formation of heat fog is increased.
- a light-sensitive element containing silver salt of unsubstituted benzotriazole can be thermally developed and provide good contrast between image and background and hence this silver salt is most suitable for this invention.
- Benzotriazolyl silver may be obtained by dissolving, for example, 59.5 g. of benzotriazole into 2 liters of methanol and adding into the solution 200 ml. of an aqueous solution of g. of silver nitrate with stirring at a normal temperature. After washing with water by decantation ten times, thus formed precipitate was separated by filtration, washed with water three times and dried.
- the size of the crystal grain may be controlled.
- the organic halide capable of forming a silver halide by the reaction with the light-insensitive silver salt is a water-soluble or organic solvent-soluble compound shown by the general formula MXn wherein M represents hydrogen, ammonium or a metal such as strontium, cadmium, zinc, tin, chromium, sodium, potassium, barium, iron, cesium, lanthanum, copper, calcium, nickel, magnesium, aluminum, antimony, gold, cobalt, mercury, lead and beryllium; X represents a halogen such as chlorine, iodine and bromine, n represents the valency of metal, M.
- the iodide provides the silver salt thereof which is difficult to be printed out and hence is particularly preferable for the present invention.
- the dispersion may be subjected to a sulfur sensitization, a reduction sensitization or a noble metal sensitization, in the same manner as in conventional photographic light sensitive emulsion to increase the light-sensitivity.
- aromatic monoor poly-hydroxy compounds and the derivatives thereof or aromatic monoor poly-amino compounds and the derivatives thereof there are illustrated aromatic monoor poly-hydroxy compounds and the derivatives thereof or aromatic monoor poly-amino compounds and the derivatives thereof.
- a developer usually employed in a conventional photography may be used. They are, for example, hydroquinone, methylhydroquinone, chlorohydroquinone, bromohydroquinone, phenylhydroquinone, catechol, pyrogallol, hydroquinone monosulfonate, resorcinol, p-aminophenol, o-aminophenol, N-methyl-aminophenol y sulfate, 2-methoxy-4-aminophenol hydrochloride, 2,4-diaminophenol hydrochloride, sodium 1- amino-Z-naphthol-6-sulfonate, p-oxyphenyl glycine, 2- ⁇ 3- hydroxyethyl-4-a
- reducing agents such as 3-pyrazolidone, hydroxylamine hydrochloride, and reducing saccharines (glucose, lactose, etc.) may also be used in this invention.
- the oxidation reduction potential of the reducing agent at a normal temperature must be less than 500 m.v. (to standard hydrogen electrode).
- organic acid used in this invention there are such saturated aliphatic monocarboxylic acids having from nine to 26 carbon atoms as peralgonic acid, capric acid, lauric acid,
- those having from 12 to 22 carbon atoms are particularly preferable.
- the most preferable organic acids in this invention are lauric acid having 12 carbon atoms, myristic acid having 14 carbon atoms, palmitic acid having 16 carbon atoms, stearic acid having 18 carbon atoms, arachic acid having 20 carbon atoms and behenic acid having 22 carbon atoms.
- unsaturated aliphatic carboxylic acids such as linolic acid and oleic acid can be used in this invention.
- aliphatic dicarboxylic acids having from 4 to 10 carbon atoms such as succinic acid, glutaric acid, adipic acid, sebacic acid, etc.
- succinic acid glutaric acid, adipic acid, sebacic acid, etc.
- sebacic acid is particularly preferable in the present invention since it has a good thermally developing property and provides a good contrast between image and background when used in photographic light-sensitive element. it is also odorless.
- hydroxyl group substituted benzoic acids such as 2,3- dihydroxy benzoic acid, 2,4-dihydroxy benzoic acid, gentisic acid, 3 -resorcic acid, 7 -resorcic acid, protocathechuic acid, and gallic acid may also be employed in this invention in addition, the benzoic acid may have substituents such as a halogen atom and a methyl group.
- the salts such as alkali metal salts of the above-mentioned organic acids can also be effectively used in this invention. Since these organic compounds have their own reducing power, they can also be used as reducing agent and developing promoter simultaneously without the necessity of a reducing agent.
- the proportions of the above-mentioned ingredients are generally determined by the reducing power, catalytic power, molecular weight and the like of the compounds to be used but generally it is preferable to use to one part by weight of the lighbsensitive and reducible silver salt (a), from 1/10 to l/ 100,000 part by weight of the light-sensitivity-providing material (b), from 1] 100 to 10 parts by weight of the reducing agent and l/ 100 to parts by weight of the organic acid (11) together with from l/ 10 to parts by weight of a suitable binder.
- composition containing the above-mentioned ingredients may contain dye sensitizer, an oxide or a hydroxide of a metal, a hardening agent, a developing promotor, a matting agent, a wetting agent and the like.
- a mixture of the above ingredients is applied to a sheetform support such as a pulp paper, a photographic paper, a baryta paper, a synthetic resin film, a metallic foil, a glass plate or the like.
- a sheetform support such as a pulp paper, a photographic paper, a baryta paper, a synthetic resin film, a metallic foil, a glass plate or the like.
- a part or the whole of these ingredients may be applied on the support in separate layers. Further, in order to coat these ingredients on a support uniformly and smoothly, it is preferable to use a suitable binder.
- a transparent or translucent binder is desirable in this invention so as not to lower the transmission of light, and in particular photographic gelatin and solid high-molecular materials or resins are preferable.
- suitable high-molecular materials and resins there are illustrated polyvinylbutyral, cellulose acetate butyrate, polymethyl methacrylate, polyvinyl pyrrolidone, ethyl cellulose, polyethylene glycol, polystyrene, polyvinyl chloride, chlorinated rubber, polyisobutylene, a copolymer of butadiene and styrene, a copolymer of vinyl chloride and vinyl acetate, a copolymer of vinyl chloride, vinyl acetate and maleic acid, methcrylic resin, polyvinyl alcohol and the derivative thereof such as polyvinyl acetate.
- oxides or hydroxides of metals such as zinc oxide, aluminum oxide, magnesium oxide, zinc hydroxide, aluminum hydroxide, cadmium hydroxide, magnesium hydroxide, and titanium oxide.
- the dye sensitizer, wetting agent, color toning agent, matting agent and hardening agent used in this invention may be oneconventionally employed in usual photographic silver halide light-sensitive elements.
- the light-sensitive element having one or more light-sensi tive layers containing the above-mentioned composition is, after exposure to a tungsten lamp or an ultraviolet lamp,
- the exposed part of the light-sensitive silver salt acts as a reducing catalyst by the actions of the reducing agent and the organic acid to reduce the light-inscm sitive silver salt and to provide an image.
- the exposure time is considerably influenced by the kind of light sources, the developing conditions, the kinds of reducing agents and additives, and the sensitivity of the light-sensitive silver salt, but is in general from 0.001 second to 5 minutes.
- the exposed light-sensitive element of this invention is usually developed by heating it to a temperature of above C., preferably l20-l 60 C. for 10 seconds.
- the image thusly obtained by heating is not developed at a normal temperature and stable and permanent one.
- the light-sensitive element of the present invention can be developed by a dry method after exposure and can provide a stable image without necessity of other processings, there are such advantages that the reproducing processing can be conducted rapidly and facilitated and the construction of processor is simplified.
- EXAMPLE 2 Cellulose acetatc-butyrate 5.6 g. Benzotriazolyl silver 2.8 g. Strontium iodide 0.07 g. sensitizing dye 0.001 g, Hydroquinone 0.84 g. Benmic acid 2l .0 g.
- the dispersion of the above composition in acetone was applied to a photographic paper (per one square meter) and dried. After exposure to a tungsten lamp, the light-sensitive paper was heated to 1 10 C. for 10 seconds to provide a good image in which the contrast between image and background was scarcely changes when exposed to white light.
- EXAMPLE 3 Polyvinylbutyral 4,8 g. Benzotriazclyl silver l.2 g. Cadmium iodide 0.05 g. sensitizing dye 0.00l g. Gallic acid 0.8 Why acid 6.0 g.
- the dispersion of the above composition in ethanol was applied to a photographic paper (per one square meter) and dried. After exposure to a tungsten lamp, the'light-sensitive paper was heated to 140 C. for seconds to provide an image in which the contrast between image and background was not changed when exposed to white light.
- EXAMPLE 4 Polyvinylbutyral 5.6 g. Benzotriazolyl silver 2.8 g Barium iodide 0.07 g sensitizing dye 0.001 g. Pyrogallol 0.05 g. Gallic acid 7.0 g.
- the dispersion of the above composition in acetone was applied to a photographic paper (per one square meter) and dried. After being exposed to a tungsten lamp, the light-sensitive paper was heated to 160 C. for 5 seconds to provide a good image in which the contrast was scarcely changed when exposed to white light.
- Benzotriazolyl silvcr 1.0 g. Ammonium bromide 0.05 g. sensitizing dye 0.001 g. l-Fhcnyl-S-pyrazolidone 0.05 g. Zinc oxide 1.0 g. Myristic acid 4.0 g.
- the dispersion of the above composition in isopropyl a1- cohol was applied to a paper (per one square meter) and dried. After exposure to a tungsten lamp, the light-sensitive paper was heated to 160 C. for 5 minutes to provide a stable image having a good contrast.
- EXAMPLE 6 Polyvinylbutyral 4.0 g. Strontium iodide 0.02 g. Sensitizing dye 0.0005 g. l-Hydroxy-4-methoxynaphthalene 0.1 g. Scbacic acid 4.0 g.
- the light-sensitive paper was heated to 150 C. for 10 seconds to provide a stable good image having a good contrast.
- EXAMPLE 7 Polymethyl methacrylatc 4.0 g. Benzotrinzolyl silver 1.0 g. Sodium chloride 0.03 g. sensitizing dye 0.001 g. Hydroquinonc 0.3 g. Benzoic acid 5.0 g. 1,3-Diphenyl guanidine 1.0 g.
- the dispersion of the above composition in ethanol was applied to a photographic paper (per one square meter) and dried. After exposure to a tungsten light, thus prepared lightsensitive paper was heated to 150 C. for 5 seconds to provide a stable image having a good contrast.
- EXAMPLE 8 Polyvinylbutyral 4.0 g. Bcnzotriazolyl silver 1.0 3. Aluminum hydroxide 1.0 g. Scbacic acid 4.0 g.
- Polyvinylbutyral 0.3 g. Strontium iodide 0.05 g. l-Phcnyl-3-pyrazolidone 0.3 g. sensitizing dye 0.001 g.
- the light-sensitive paper was heated to C. for 10 seconds to provide a stable image having a good contrast.
- the above composition was applied to a photographic paper (per one square meter) together with a suitable amount of color toning agent, a wetting agent and a hardening agent, and dried. After exposure to a tungsten lamp, the light-sensitive paper was heated to C. for 10 seconds to provide a stable image having a good contrast.
- EXAMPLE 10 Into ml. of water was dried 18 g. of photographic gelatin and in the resulting solution was finely dispersed 3 g. of benzotriazolyl silver. The dispersion was heated to 60 C., mixed with 2 ml. of an aqueous solution of 5 percent potassium iodide, and the resulting solution was allowed to stand for 50 minutes at 60 C. and cooled to 40 C. Thereafter, the dispersion was mixed with the following composition:
- sensitizing dye 0.0003 g. Sodium benzene sulfinate 1.8 g. Hydroquinone 0.9 g. Surface active agent 0.9 g. Sodium sebacate 12.0 g. 6% Formaldehyde solution 7.2 ml.
- EXAMPLE 1 1 Into ml. of ethanol was dissolved 18 g. of polyvinylbutyral and in the solution 3 g. of benzotriazole silver was finely dispersed. The dispersion was heated to 50 C. and allowed to stand for 3 minutes and into the dispersion was added 2 ml. of an aqueous solution of 5 percent potassium iodide. After allowing to stand for 3 minutes, the thusly obtained dispersion was mixed with 0.5 ml. of an aqueous solution of 1 percent sodium nitrite and cooled to a normal temperature. The dispersion was then mixed with the following composition:
- sensitizing dye 0.0003 g. Hydroquinone 0.9 g. Aluminum oxide 3.0 g. O-Toluylic acid 12.0 g.
- a thermally developable light-sensitive element comprising a support bearing thereon at least one layer, said layer containing one part, by weight, of benzotriazolyl silver; from 1/10 to 1/100,000 part, by weight, based on the weight of said benzotriazolyl silver, of an inorganic halide of the formula MX,, wherein M is selected from the group consisting of hydrogen, amonium and a metal, and wherein X is a halogen, and wherein n is the valency of M; from 1/100 to l/10 part, by weight, based on the weight of said benzotriazolyl silver, of a reducing agent having an oxidation-reduction potential of less than 500 m.v., in comparison with the oxidation-reduction potential of a standard hydrogen electrode; and from 1/ 100 to 10 parts, by weight, based on the weight of said benzotriazolyl silver, of an organic acid and alkali metal salts thereof, said organic acid being selected from the group consisting
- thermoly developable light-sensitive element as in claim 1, wherein said reducing agent is a photographic developer.
- thermoly developable light-sensitive element as in claim 1., wherein said aliphatic monocarboxylic acid is a member selected from the group consisting of lauric acid,
- thermoly developable light-sensitive element as in claim I, wherein said aliphatic dicarboxylic acid is a member selected from the group consisting of succinic acid, glutaric acid, adipic acid and sebacic acid.
- said substituted benzoic acid is a member selected from the group consisting of dihydroxybenzoic acid, toluic acid, dichlorobenzoic acid, and gallic acid.
- a process for obtaining a print comprising exposing the thermally developable light-sensitive element of claim 1 to the action of a tungsten or ultraviolet lamp for a period of time of from 0.001 to 5 minutes, and heating said element for a period of time of from 1 to 10 seconds at a temperature of from to C.
- a thermally developablelight-sensitive element comprising a support bearing thereon at least one layer, said layer containing one part, by weight, of benzotriazolyl silver, from 1/10 to 1/ 100,000 part, by weight, based on the weight of said benzotriazolyl silver, of an inorganic iodide of the formula Ml wherein M is selected from the group consisting of hydrogen, amonium and a metal, and wherein n 15 the valency of M; from H100 to l/ 10 part, by weight, based on the weight of said benzotriazolyl silver, of a reducing agent selected from the group consisting of photographic developers having an oxidation-reduction potential of less than 500 m.v., in comparison with the oxidation-reduction potential of a standard hydrogen electrode; and from 2.0 to 7.5 parts, by weight, based on the weight of said benzotriazolyl silver, of an organic acid and alkali metal salts thereof, said organic acid being selected from the group consisting of lauric acid, my
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Abstract
A photographic light-sensitive element capable of providing stable images by a thermal development, having a light-sensitive layer containing benzotriazolyl silver, a silver halide or an organic halide capable of forming a silver halide by the reaction with benzotriazolyl silver, a reducing agent, and an organic acid or a salt thereof.
Description
United States Patent Ohkubo et a1.
[ 1 Feb.29,1972
[54] THERMALLY DEVELOPABLE LIGHT- SENSITIVE ELEMENTS [72] lnventors: Kinji Ohkubo; Takao Masuda; Junpel Noguchi, all of Kanagawa, Japan [73] Assignee: Fuji Photo Film Co., Ltd., Kanagawa,
v Japan [22] Filed: Feb. 21, 1967 [2]] Appl. No.: 617,498
[30] Foreign Application Priority Data Feb. 21, 1966 Japan ..41/l0383 [52] US. Cl ..96/67, 96/95, 96/114.1 [51] ..G03c l/76,G03c 1/06,G03c 1/02 [58] Field of Search ..96/94, 114.1, 95, 66 T, 76, 96/67; ll7/36.8, 36.9
[56] References Cited UNlTED STATES PATENTS 2,710,256 6/1955 Eckleretal....,..... 96/94 3,152,903 10/1964 Shepard et al ..96l95 3,152,904 10/1964 Sorensen et al.. .....96/76 3,218,168 11/1965 Workman ..96/67 3,392,020 7/1968 Yutzy et al ..96/67 3,457,075 7/1969 Morgan et a1 ,.96/67 OTHER PUBLICATIONS CA Abst. 1663b Vol. 65.
Primary ExaminerNorman G. Torchin Assistant Examiner-Mary F. Kelley AttorneySemmes & Semmes [5 7] ABSTRACT THERMALLY DEVELOPABLE LIGHT-SENSITIVE ELEMENTS BACKGROUND OF THE INVENTION For realizing an image by a dry developing method, various efforts have hitherto been made. One of them is an attempt in silver halide photography in which the development and fixing are conducting in one processing and such a process is called a monobath developing and fixing process. (E.g., cf. U.S. Pat. No. 2,875,048; British Pat. No. 954,453; and German Pat. No. 1,163,142). Another attempt is one in which the ,wet type processings in a conventional silver halide photography are conducted in a dry manner and is disclosed in, for example, German Pat. No. 1,174,159 and British Pat. Nos. 943,476 and 951,644. Still another attempt is one in which a silver salt compound other than silver halide is used and is disclosed in, for example, U.S. Pat. No. 3,152,904 and Belgian Pat. No. 663,112,
SUMMARY OF THE INVENTION The present invention relates to a light-sensitive element and more particularly to a light-sensitive element capable of forming images by heating.
In general, the light-sensitive element most widely used is a photographic light-sensitive element in which a silver halide is used, since such a photographic silver-halide light-sensitive element is excellent in sensitivity and gradation as compared with electrophotographic light-sensitive elements and other photographic light-sensitive elements. However, there are such difiiculties in such a photographic silver-halide light-sensitive element that the light-sensitive element must be subjected to several processings in order to prevent a thusly developed image from being blackened. The latter processings are generally called stopping, fixing" and stabilizing in a usual photographic method. Therefore, it is very desirable from the simplicity of processings to obtain an image by a dry developing method and to provide the permanent image while omitting fixing and other processes.
DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention is concerned with a photographic light-sensitive element containing a combination of a light-insensitive and reducible organic silver salt and a slight amount of a light-sensitive silver salt, and more particularly a photographic light-sensitive element containing a benzotriazolyl silver and a slight amount of a silver halide.
Thus, an object of the present invention is to provide a novel photographic light-sensitive composition.
Another object of the present invention is to provide a novel image-reproducing method.
Still another object of the present invention is to provide a dry-type processing for conducting development by only heating without using any solutions in the developing process.
A further object of the present invention is to provide a light-sensitive element which can provide an image stable to light and capable of being stored almost substantially without subjecting the developed image to fixing and other processings.
Other objects and advantages of the present invention will become apparent by the following detailed descriptions.
Those objects can be achieved by using the thermally developable light-sensitive element of the present invention having a light-sensitive layer containing a combination of a light-insensitive and reducible organic silver salt and a slight amount of a light-sensitive silver salt such as a silver halide. That is, the thermally developable light-sensitive element according to the present invention comprises a support bearing at least one layer containing at least (a) a light-insensitive and reducible organic silver salt, (b) an inorganic halide capable of forming a light-sensitive silver halide by the reaction with the light-insensitive and reducible organic salt, (c) a reducing agent, and (d) at least one member selected from the group consisting of an organic acid or a salt thereof together with a suitable binder.
Asthe light-insensitive silver salt used in this invention,
there are illustrated silver salts of organic compounds having imino group such as a silver salt of benzotriazole or a silver salt of halogenor nitro-substituted benzotriazole; carbazolyl silver; and silver salt of saccharin (o-sulfobenzoic acid imide). Among them the silver salt of halogenor nitro-substituted benzotriazole is noninsensitive but the thermal development thereof is difficult. That is, the power of the silver salt to be reduced is weak. Carbazolyl silver is also difficult to be developed by heating. On the other hand, silver salt of saccharin can be developed thermally but the contrast between image and background is low, that is, the formation of heat fog is increased. However, a light-sensitive element containing silver salt of unsubstituted benzotriazole can be thermally developed and provide good contrast between image and background and hence this silver salt is most suitable for this invention.
Benzotriazolyl silver may be obtained by dissolving, for example, 59.5 g. of benzotriazole into 2 liters of methanol and adding into the solution 200 ml. of an aqueous solution of g. of silver nitrate with stirring at a normal temperature. After washing with water by decantation ten times, thus formed precipitate was separated by filtration, washed with water three times and dried.
Also, by conducting the reaction of benzotriazole and silver nitrate in a solution containing the below-mentioned binder, the size of the crystal grain may be controlled.
The organic halide capable of forming a silver halide by the reaction with the light-insensitive silver salt is a water-soluble or organic solvent-soluble compound shown by the general formula MXn wherein M represents hydrogen, ammonium or a metal such as strontium, cadmium, zinc, tin, chromium, sodium, potassium, barium, iron, cesium, lanthanum, copper, calcium, nickel, magnesium, aluminum, antimony, gold, cobalt, mercury, lead and beryllium; X represents a halogen such as chlorine, iodine and bromine, n represents the valency of metal, M. Among the above-mentioned inorganic halides, the iodide provides the silver salt thereof which is difficult to be printed out and hence is particularly preferable for the present invention.
Further, after dispersing in a binder solution the light-insensitive organic silver salt containing a slight amount of the silver halide, the dispersion may be subjected to a sulfur sensitization, a reduction sensitization or a noble metal sensitization, in the same manner as in conventional photographic light sensitive emulsion to increase the light-sensitivity.
As the reducing agent used in the present invention, there are illustrated aromatic monoor poly-hydroxy compounds and the derivatives thereof or aromatic monoor poly-amino compounds and the derivatives thereof. For example, a developer usually employed in a conventional photography may be used. They are, for example, hydroquinone, methylhydroquinone, chlorohydroquinone, bromohydroquinone, phenylhydroquinone, catechol, pyrogallol, hydroquinone monosulfonate, resorcinol, p-aminophenol, o-aminophenol, N-methyl-aminophenol y sulfate, 2-methoxy-4-aminophenol hydrochloride, 2,4-diaminophenol hydrochloride, sodium 1- amino-Z-naphthol-6-sulfonate, p-oxyphenyl glycine, 2-{3- hydroxyethyl-4-aminophenol, N,N-diethyl-p-phenylenediamine sulfite, l-naphthylamine-7-sulfonic acid (8 acid), M acid, l-hydroxy-4-methoxynaphthalene, l-hydroxy- 4-ethoxynaphthalene, 1,4-dihydroxynaphthalene, and lhydroxy-4-aminonaphthalene. These compounds may be used alone or amixture thereof. Moreover, other reducing agents such as 3-pyrazolidone, hydroxylamine hydrochloride, and reducing saccharines (glucose, lactose, etc.) may also be used in this invention. In any case, it is necessary for being used in thermal development that the oxidation reduction potential of the reducing agent at a normal temperature must be less than 500 m.v. (to standard hydrogen electrode).
As the organic acid used in this invention, there are such saturated aliphatic monocarboxylic acids having from nine to 26 carbon atoms as peralgonic acid, capric acid, lauric acid,
myristic acid, palmitic acid, stearic acid, arachic acid, behenic acid, cerotic acid, and the like. Among them, those having from 12 to 22 carbon atoms are particularly preferable. That is, the most preferable organic acids in this invention are lauric acid having 12 carbon atoms, myristic acid having 14 carbon atoms, palmitic acid having 16 carbon atoms, stearic acid having 18 carbon atoms, arachic acid having 20 carbon atoms and behenic acid having 22 carbon atoms. Furthermore, unsaturated aliphatic carboxylic acids such as linolic acid and oleic acid can be used in this invention. In this invention, further, aliphatic dicarboxylic acids having from 4 to 10 carbon atoms such as succinic acid, glutaric acid, adipic acid, sebacic acid, etc., may be used and among them sebacic acid is particularly preferable in the present invention since it has a good thermally developing property and provides a good contrast between image and background when used in photographic light-sensitive element. it is also odorless. Moreover, hydroxyl group substituted benzoic acids such as 2,3- dihydroxy benzoic acid, 2,4-dihydroxy benzoic acid, gentisic acid, 3 -resorcic acid, 7 -resorcic acid, protocathechuic acid, and gallic acid may also be employed in this invention in addition, the benzoic acid may have substituents such as a halogen atom and a methyl group. The salts such as alkali metal salts of the above-mentioned organic acids can also be effectively used in this invention. Since these organic compounds have their own reducing power, they can also be used as reducing agent and developing promoter simultaneously without the necessity of a reducing agent.
The proportions of the above-mentioned ingredients are generally determined by the reducing power, catalytic power, molecular weight and the like of the compounds to be used but generally it is preferable to use to one part by weight of the lighbsensitive and reducible silver salt (a), from 1/10 to l/ 100,000 part by weight of the light-sensitivity-providing material (b), from 1] 100 to 10 parts by weight of the reducing agent and l/ 100 to parts by weight of the organic acid (11) together with from l/ 10 to parts by weight of a suitable binder. Moreover, if necessary, the composition containing the above-mentioned ingredients may contain dye sensitizer, an oxide or a hydroxide of a metal, a hardening agent, a developing promotor, a matting agent, a wetting agent and the like.
A mixture of the above ingredients is applied to a sheetform support such as a pulp paper, a photographic paper, a baryta paper, a synthetic resin film, a metallic foil, a glass plate or the like. A part or the whole of these ingredients may be applied on the support in separate layers. Further, in order to coat these ingredients on a support uniformly and smoothly, it is preferable to use a suitable binder.
A transparent or translucent binder is desirable in this invention so as not to lower the transmission of light, and in particular photographic gelatin and solid high-molecular materials or resins are preferable. As the suitable high-molecular materials and resins there are illustrated polyvinylbutyral, cellulose acetate butyrate, polymethyl methacrylate, polyvinyl pyrrolidone, ethyl cellulose, polyethylene glycol, polystyrene, polyvinyl chloride, chlorinated rubber, polyisobutylene, a copolymer of butadiene and styrene, a copolymer of vinyl chloride and vinyl acetate, a copolymer of vinyl chloride, vinyl acetate and maleic acid, methcrylic resin, polyvinyl alcohol and the derivative thereof such as polyvinyl acetate.
Besides the above-mentioned materials, other additives for improving the contrast of image and background, which may be incorporated into the composition are oxides or hydroxides of metals such as zinc oxide, aluminum oxide, magnesium oxide, zinc hydroxide, aluminum hydroxide, cadmium hydroxide, magnesium hydroxide, and titanium oxide.
Further, the dye sensitizer, wetting agent, color toning agent, matting agent and hardening agent used in this invention may be oneconventionally employed in usual photographic silver halide light-sensitive elements.
The light-sensitive element having one or more light-sensi tive layers containing the above-mentioned composition is, after exposure to a tungsten lamp or an ultraviolet lamp,
heated by a suitable manner such as by passing through two heated rollers, placing it between two heated plates or by an infrared lamp, whereby the exposed part of the light-sensitive silver salt acts as a reducing catalyst by the actions of the reducing agent and the organic acid to reduce the light-inscm sitive silver salt and to provide an image.
The exposure time is considerably influenced by the kind of light sources, the developing conditions, the kinds of reducing agents and additives, and the sensitivity of the light-sensitive silver salt, but is in general from 0.001 second to 5 minutes.
The exposed light-sensitive element of this invention is usually developed by heating it to a temperature of above C., preferably l20-l 60 C. for 10 seconds.
The image thusly obtained by heating is not developed at a normal temperature and stable and permanent one.
As mentioned above, since the light-sensitive element of the present invention can be developed by a dry method after exposure and can provide a stable image without necessity of other processings, there are such advantages that the reproducing processing can be conducted rapidly and facilitated and the construction of processor is simplified.
Furthermore, there are other advantages: since any liquid chemicals for development and fixing are not used in the dry reproducing system, there are no dangers of contaminating hands and clothes, and copies can be obtained immediately in the dried state.
In the following examples the specific embodiments of this invention and the most preferable methods of preparing the thermally developable light-sensitive elements containing the The dispersion of the above composition in ethanol was applied to a photographic paper (per one square meter) and dried. After exposure to a tungsten lamp, this light-sensitive paper was heated to C. for 10 seconds to provide a good image in which the contrast between image and background was scarcely changed even if the thusly developed image were exposed to white light.
EXAMPLE 2 Cellulose acetatc-butyrate 5.6 g. Benzotriazolyl silver 2.8 g. Strontium iodide 0.07 g. sensitizing dye 0.001 g, Hydroquinone 0.84 g. Benmic acid 2l .0 g.
The dispersion of the above composition in acetone was applied to a photographic paper (per one square meter) and dried. After exposure to a tungsten lamp, the light-sensitive paper was heated to 1 10 C. for 10 seconds to provide a good image in which the contrast between image and background was scarcely changes when exposed to white light.
EXAMPLE 3 Polyvinylbutyral 4,8 g. Benzotriazclyl silver l.2 g. Cadmium iodide 0.05 g. sensitizing dye 0.00l g. Gallic acid 0.8 Laurie acid 6.0 g.
The dispersion of the above composition in ethanol was applied to a photographic paper (per one square meter) and dried. After exposure to a tungsten lamp, the'light-sensitive paper was heated to 140 C. for seconds to provide an image in which the contrast between image and background was not changed when exposed to white light.
EXAMPLE 4 Polyvinylbutyral 5.6 g. Benzotriazolyl silver 2.8 g Barium iodide 0.07 g sensitizing dye 0.001 g. Pyrogallol 0.05 g. Gallic acid 7.0 g.
The dispersion of the above composition in acetone was applied to a photographic paper (per one square meter) and dried. After being exposed to a tungsten lamp, the light-sensitive paper was heated to 160 C. for 5 seconds to provide a good image in which the contrast was scarcely changed when exposed to white light.
EXAMPLE 5 Polyvinylbutyral 4.0 g.
Benzotriazolyl silvcr 1.0 g. Ammonium bromide 0.05 g. sensitizing dye 0.001 g. l-Fhcnyl-S-pyrazolidone 0.05 g. Zinc oxide 1.0 g. Myristic acid 4.0 g.
The dispersion of the above composition in isopropyl a1- cohol was applied to a paper (per one square meter) and dried. After exposure to a tungsten lamp, the light-sensitive paper was heated to 160 C. for 5 minutes to provide a stable image having a good contrast.
EXAMPLE 6 Polyvinylbutyral 4.0 g. Strontium iodide 0.02 g. Sensitizing dye 0.0005 g. l-Hydroxy-4-methoxynaphthalene 0.1 g. Scbacic acid 4.0 g.
The above dispersion in ethanol was applied to a paper (per one square meter) and dried. Thereafter, the dispersion of the following composition in ethanol was applied to the formed layer:
Polyvinylhutyral 4.0 g. Benzotriazolyl silver 2.0 g. Monochlorohydroquinone 0.1 g.
followed by drying. After exposure to a tungsten lamp, the light-sensitive paper was heated to 150 C. for 10 seconds to provide a stable good image having a good contrast.
EXAMPLE 7 Polymethyl methacrylatc 4.0 g. Benzotrinzolyl silver 1.0 g. Sodium chloride 0.03 g. sensitizing dye 0.001 g. Hydroquinonc 0.3 g. Benzoic acid 5.0 g. 1,3-Diphenyl guanidine 1.0 g.
The dispersion of the above composition in ethanol was applied to a photographic paper (per one square meter) and dried. After exposure to a tungsten light, thus prepared lightsensitive paper was heated to 150 C. for 5 seconds to provide a stable image having a good contrast.
EXAMPLE 8 Polyvinylbutyral 4.0 g. Bcnzotriazolyl silver 1.0 3. Aluminum hydroxide 1.0 g. Scbacic acid 4.0 g.
The dispersion of the above composition in butyl alcohol was applied to a photographic paper (per one square meter). After drying, the ethanol solution of the following composition was applied to the above formed layer:
Polyvinylbutyral 0.3 g. Strontium iodide 0.05 g. l-Phcnyl-3-pyrazolidone 0.3 g. sensitizing dye 0.001 g.
followed by drying. After exposure to a tungsten light, the light-sensitive paper was heated to C. for 10 seconds to provide a stable image having a good contrast.
EXAMPLE 9 Gelatin 4.5 g. Benzotriazolyl silver 1.0 g. Strontium iodide 0.05 g. sensitizing dye 0.001 g. Hydroquinone 0.3 g. Sodium adipate 2.0 g.
The above composition was applied to a photographic paper (per one square meter) together with a suitable amount of color toning agent, a wetting agent and a hardening agent, and dried. After exposure to a tungsten lamp, the light-sensitive paper was heated to C. for 10 seconds to provide a stable image having a good contrast.
EXAMPLE 10 Into ml. of water was dried 18 g. of photographic gelatin and in the resulting solution was finely dispersed 3 g. of benzotriazolyl silver. The dispersion was heated to 60 C., mixed with 2 ml. of an aqueous solution of 5 percent potassium iodide, and the resulting solution was allowed to stand for 50 minutes at 60 C. and cooled to 40 C. Thereafter, the dispersion was mixed with the following composition:
sensitizing dye 0.0003 g. Sodium benzene sulfinate 1.8 g. Hydroquinone 0.9 g. Surface active agent 0.9 g. Sodium sebacate 12.0 g. 6% Formaldehyde solution 7.2 ml.
EXAMPLE 1 1 Into ml. of ethanol was dissolved 18 g. of polyvinylbutyral and in the solution 3 g. of benzotriazole silver was finely dispersed. The dispersion was heated to 50 C. and allowed to stand for 3 minutes and into the dispersion was added 2 ml. of an aqueous solution of 5 percent potassium iodide. After allowing to stand for 3 minutes, the thusly obtained dispersion was mixed with 0.5 ml. of an aqueous solution of 1 percent sodium nitrite and cooled to a normal temperature. The dispersion was then mixed with the following composition:
sensitizing dye 0.0003 g. Hydroquinone 0.9 g. Aluminum oxide 3.0 g. O-Toluylic acid 12.0 g.
and the resulting mixture was applied to a polyethylene terephthalate film (per one square meter) and dried. The amount of silver was 1.8 g./sq. m. as silver nitrate. After exposure to a tungsten lamp, thus obtained light-sensitive element was heated to 140 C. for seconds to provide a stable image. By adding 1 ml. of a 0.01 percent aqueous solution of sodium chloride aurate at the step of allowing to stand in the above procedure, the light-sensitivity was increased.
We claim:
1. A thermally developable light-sensitive element, comprising a support bearing thereon at least one layer, said layer containing one part, by weight, of benzotriazolyl silver; from 1/10 to 1/100,000 part, by weight, based on the weight of said benzotriazolyl silver, of an inorganic halide of the formula MX,,, wherein M is selected from the group consisting of hydrogen, amonium and a metal, and wherein X is a halogen, and wherein n is the valency of M; from 1/100 to l/10 part, by weight, based on the weight of said benzotriazolyl silver, of a reducing agent having an oxidation-reduction potential of less than 500 m.v., in comparison with the oxidation-reduction potential of a standard hydrogen electrode; and from 1/ 100 to 10 parts, by weight, based on the weight of said benzotriazolyl silver, of an organic acid and alkali metal salts thereof, said organic acid being selected from the group consisting of an aliphatic monocarboxylic acid having from 12 to 22 carbon atoms, an aliphatic dicarboxylic acid having from four to 10 carbon atoms, and substituted and unsubstituted benzoic acid, wherein said substituent is a member selected from the group consisting of a methyl radical, a halogen atom and a hydroxyl group.
2. The thermally developable light-sensitive element as in claim 1, wherein said reducing agent is a photographic developer.
4 3. The thermally developable light-sensitive element as in claim 1., wherein said aliphatic monocarboxylic acid is a member selected from the group consisting of lauric acid,
'myristic acid, palmitic acid, stearic acid, arachic acid and behenic acid.
4. The thermally developable light-sensitive element as in claim I, wherein said aliphatic dicarboxylic acid is a member selected from the group consisting of succinic acid, glutaric acid, adipic acid and sebacic acid.
5. The thermally developable light-sensitive element as in claim 1, wherein said substituted benzoic acid is a member selected from the group consisting of dihydroxybenzoic acid, toluic acid, dichlorobenzoic acid, and gallic acid.
6. A thermally developable light-sensitive element as in claim 1, wherein said alphatic monocarboxylic acid is palmitic acid.
7. A process for obtaining a print, comprising exposing the thermally developable light-sensitive element of claim 1 to the action of a tungsten or ultraviolet lamp for a period of time of from 0.001 to 5 minutes, and heating said element for a period of time of from 1 to 10 seconds at a temperature of from to C.
8. A thermally developablelight-sensitive element, comprising a support bearing thereon at least one layer, said layer containing one part, by weight, of benzotriazolyl silver, from 1/10 to 1/ 100,000 part, by weight, based on the weight of said benzotriazolyl silver, of an inorganic iodide of the formula Ml wherein M is selected from the group consisting of hydrogen, amonium and a metal, and wherein n 15 the valency of M; from H100 to l/ 10 part, by weight, based on the weight of said benzotriazolyl silver, of a reducing agent selected from the group consisting of photographic developers having an oxidation-reduction potential of less than 500 m.v., in comparison with the oxidation-reduction potential of a standard hydrogen electrode; and from 2.0 to 7.5 parts, by weight, based on the weight of said benzotriazolyl silver, of an organic acid and alkali metal salts thereof, said organic acid being selected from the group consisting of lauric acid, myristic acid, sebacic acid, and substituted and unsubstituted benzoic acid, wherein said substituent is a member selected from the group consisting of a methyl radical, a halogen atom and a hydroxyl group.
Claims (7)
- 2. The thermally developable light-sensitive element as in claim 1, wherein said reducing agent is a photographic developer.
- 3. The thermally developable light-sensitive element as in claim 1, wherein said aliphatic monocarboxylic acid is a member selected from the group consisting of lauric acid, myristic acid, palmitic acid, stearic acid, arachic acid and behenic acid.
- 4. The thermally developable light-sensitive element as in claim 1, wherein said aliphatic dicarboxylic acid is a member selected from the group consisting of succinic acid, glutaric acid, adipic acid and sebacic acid.
- 5. The thermally developable light-sensitive element as in claim 1, wherein said substituted benzoic acid is a member selected from the group consisting of dihydroxybenzoic acid, toluic acid, dichlorobenzoic acid, and gallic acid.
- 6. A thermally developable light-sensitive element as in claim 1, wherein said alphatic monocarboxylic acid is palmitic acid.
- 7. A process for obtaining a print, comprising exposing the thermally developable light-sensitive element of claim 1 to the action of a tungsten or ultraviolet lamp for a period of time of from 0.001 to 5 minutes, and heating said element for a period of time of from 1 to 10 seconds at a temperature of from 120* to 160* C.
- 8. A thermally developable light-sensitive element, comprising a support bearing thereon at least one layer, said layer containing one part, by weight, of benzotriazolyl silver, from 1/10 to 1/100,000 part, by weight, based on the weight of said benzotriazolyl silver, of an inorganic iodide of the formula MIn, wherein M is selected from the group consisting of hydrogen, amonium and a metal, and wherein n is the valency of M; from 1/100 to 1/10 paRt, by weight, based on the weight of said benzotriazolyl silver, of a reducing agent selected from the group consisting of photographic developers having an oxidation-reduction potential of less than 500 m.v., in comparison with the oxidation-reduction potential of a standard hydrogen electrode; and from 2.0 to 7.5 parts, by weight, based on the weight of said benzotriazolyl silver, of an organic acid and alkali metal salts thereof, said organic acid being selected from the group consisting of lauric acid, myristic acid, sebacic acid, and substituted and unsubstituted benzoic acid, wherein said substituent is a member selected from the group consisting of a methyl radical, a halogen atom and a hydroxyl group.
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Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3751252A (en) * | 1972-03-24 | 1973-08-07 | Eastman Kodak Co | Photothermographic element and process |
US3870523A (en) * | 1973-01-17 | 1975-03-11 | Fuji Photo Film Co Ltd | Heat developable photographic material containing azo dyes as sensitizers |
US3881938A (en) * | 1972-04-26 | 1975-05-06 | Fuji Photo Film Co Ltd | Thermally developable light-sensitive material with dimercapto substituted tetrazapentalene toners |
US3909271A (en) * | 1973-01-31 | 1975-09-30 | Fuji Photo Film Co Ltd | Heat developable photographic material containing sensitizers |
US4039334A (en) * | 1974-11-15 | 1977-08-02 | Fuji Photo Film Co., Ltd. | Thermally developable light-sensitive material |
US4076534A (en) * | 1973-10-16 | 1978-02-28 | Fuji Photo Film Co., Ltd. | Heat developable light-sensitive material |
US4125403A (en) * | 1976-06-25 | 1978-11-14 | Fuji Photo Film Co., Ltd. | Heat developable light sensitive material |
US4307187A (en) * | 1974-12-28 | 1981-12-22 | Fuji Photo Film Co., Ltd. | Thermally developable light-sensitive materials |
US4622289A (en) * | 1983-04-20 | 1986-11-11 | Fuji Photo Film Co., Ltd. | Heat-developable light-sensitive material with base precursor |
US4820617A (en) * | 1986-04-28 | 1989-04-11 | Oriental Photo Industrial Co., Ltd. | Heat-developable photosensitive material |
US5292611A (en) * | 1991-12-17 | 1994-03-08 | Konica Corporation | Dye image forming method |
US5547810A (en) * | 1994-09-16 | 1996-08-20 | Konica Corporation | Image forming method with alkali precursor |
US6037115A (en) * | 1996-05-22 | 2000-03-14 | Eastman Kodak Company | Photothermographic and thermographic films containing low levels of formate to prevent fog |
US6040130A (en) * | 1997-02-10 | 2000-03-21 | Eastman Kodak Company | Photothermographic and thermographic films containing low levels of unsaturated fatty acid to prevent fog |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3708304A (en) * | 1970-06-03 | 1973-01-02 | Eastman Kodak Co | Use of divalent metal salt image amplifiers in photosensitive and thermosensitive elements |
US4021240A (en) | 1975-12-22 | 1977-05-03 | Eastman Kodak Company | Photothermographic and thermographic compositions and uses therefor containing sulfonamidophenol reducing agents and four equivalent color couplers |
CA1081949A (en) * | 1976-07-08 | 1980-07-22 | Mark Lelental | Tellurium complex and heat-developable imaging materials and process |
GB1590678A (en) | 1976-08-18 | 1981-06-03 | Canon Kk | Image-forming member |
US4187108A (en) * | 1977-02-07 | 1980-02-05 | Eastman Kodak Company | Heat developable material and process |
JPS5456423A (en) | 1977-10-14 | 1979-05-07 | Asahi Chemical Ind | Thermal silver picture forming material |
WO1981000919A1 (en) * | 1979-09-28 | 1981-04-02 | Tonec Sa | Material for obtaining photographic prints by dry process |
WO1981000921A1 (en) * | 1979-09-28 | 1981-04-02 | Tonec Sa | Material for obtaining photographic prints by dry process |
EP0687572B1 (en) * | 1994-06-15 | 1997-08-20 | Agfa-Gevaert N.V. | Thermosensitive recording method |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2710256A (en) * | 1951-04-25 | 1955-06-07 | Gen Aniline & Film Corp | Photographic print-out process |
US3152904A (en) * | 1959-12-21 | 1964-10-13 | Minncsota Mining And Mfg Compa | Print-out process and image reproduction sheet therefor |
US3152903A (en) * | 1959-04-30 | 1964-10-13 | Minnesota Mining & Mfg | Reproduction system |
US3218168A (en) * | 1962-10-15 | 1965-11-16 | Minnesota Mining & Mfg | Heat and photosensitive copy sheet |
US3392020A (en) * | 1956-05-14 | 1968-07-09 | Eastman Kodak Co | Photo-thermographic process and element |
US3457075A (en) * | 1964-04-27 | 1969-07-22 | Minnesota Mining & Mfg | Sensitized sheet containing an organic silver salt,a reducing agent and a catalytic proportion of silver halide |
-
1967
- 1967-02-20 GB GB8004/67A patent/GB1161777A/en not_active Expired
- 1967-02-21 DE DE19671547871 patent/DE1547871A1/en active Pending
- 1967-02-21 FR FR95862A patent/FR1512080A/en not_active Expired
- 1967-02-21 US US617498A patent/US3645739A/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2710256A (en) * | 1951-04-25 | 1955-06-07 | Gen Aniline & Film Corp | Photographic print-out process |
US3392020A (en) * | 1956-05-14 | 1968-07-09 | Eastman Kodak Co | Photo-thermographic process and element |
US3152903A (en) * | 1959-04-30 | 1964-10-13 | Minnesota Mining & Mfg | Reproduction system |
US3152904A (en) * | 1959-12-21 | 1964-10-13 | Minncsota Mining And Mfg Compa | Print-out process and image reproduction sheet therefor |
US3218168A (en) * | 1962-10-15 | 1965-11-16 | Minnesota Mining & Mfg | Heat and photosensitive copy sheet |
US3457075A (en) * | 1964-04-27 | 1969-07-22 | Minnesota Mining & Mfg | Sensitized sheet containing an organic silver salt,a reducing agent and a catalytic proportion of silver halide |
Non-Patent Citations (1)
Title |
---|
CA Abst. 1663b Vol. 65. * |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3751252A (en) * | 1972-03-24 | 1973-08-07 | Eastman Kodak Co | Photothermographic element and process |
US3881938A (en) * | 1972-04-26 | 1975-05-06 | Fuji Photo Film Co Ltd | Thermally developable light-sensitive material with dimercapto substituted tetrazapentalene toners |
US3870523A (en) * | 1973-01-17 | 1975-03-11 | Fuji Photo Film Co Ltd | Heat developable photographic material containing azo dyes as sensitizers |
US3909271A (en) * | 1973-01-31 | 1975-09-30 | Fuji Photo Film Co Ltd | Heat developable photographic material containing sensitizers |
US4076534A (en) * | 1973-10-16 | 1978-02-28 | Fuji Photo Film Co., Ltd. | Heat developable light-sensitive material |
US4039334A (en) * | 1974-11-15 | 1977-08-02 | Fuji Photo Film Co., Ltd. | Thermally developable light-sensitive material |
US4307187A (en) * | 1974-12-28 | 1981-12-22 | Fuji Photo Film Co., Ltd. | Thermally developable light-sensitive materials |
US4125403A (en) * | 1976-06-25 | 1978-11-14 | Fuji Photo Film Co., Ltd. | Heat developable light sensitive material |
US4622289A (en) * | 1983-04-20 | 1986-11-11 | Fuji Photo Film Co., Ltd. | Heat-developable light-sensitive material with base precursor |
US4820617A (en) * | 1986-04-28 | 1989-04-11 | Oriental Photo Industrial Co., Ltd. | Heat-developable photosensitive material |
US5292611A (en) * | 1991-12-17 | 1994-03-08 | Konica Corporation | Dye image forming method |
US5547810A (en) * | 1994-09-16 | 1996-08-20 | Konica Corporation | Image forming method with alkali precursor |
US6037115A (en) * | 1996-05-22 | 2000-03-14 | Eastman Kodak Company | Photothermographic and thermographic films containing low levels of formate to prevent fog |
US6040130A (en) * | 1997-02-10 | 2000-03-21 | Eastman Kodak Company | Photothermographic and thermographic films containing low levels of unsaturated fatty acid to prevent fog |
Also Published As
Publication number | Publication date |
---|---|
FR1512080A (en) | 1968-02-02 |
GB1161777A (en) | 1969-08-20 |
DE1547871A1 (en) | 1969-12-11 |
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