WO1996010213A1 - Laser addressable thermographic elements - Google Patents
Laser addressable thermographic elements Download PDFInfo
- Publication number
- WO1996010213A1 WO1996010213A1 PCT/US1995/009659 US9509659W WO9610213A1 WO 1996010213 A1 WO1996010213 A1 WO 1996010213A1 US 9509659 W US9509659 W US 9509659W WO 9610213 A1 WO9610213 A1 WO 9610213A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- silver
- dye
- thermographic
- process according
- silver salt
- Prior art date
Links
- 238000001931 thermography Methods 0.000 claims abstract description 55
- 230000005855 radiation Effects 0.000 claims abstract description 43
- 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 claims abstract description 40
- 239000011230 binding agent Substances 0.000 claims abstract description 28
- 239000000758 substrate Substances 0.000 claims abstract description 26
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 24
- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical compound [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052709 silver Inorganic materials 0.000 claims description 144
- 239000004332 silver Substances 0.000 claims description 144
- -1 3-indazolinone compound Chemical class 0.000 claims description 52
- 238000000034 method Methods 0.000 claims description 42
- 230000008569 process Effects 0.000 claims description 38
- KZNICNPSHKQLFF-UHFFFAOYSA-N succinimide Chemical compound O=C1CCC(=O)N1 KZNICNPSHKQLFF-UHFFFAOYSA-N 0.000 claims description 28
- 238000011161 development Methods 0.000 claims description 21
- 125000004432 carbon atom Chemical group C* 0.000 claims description 19
- AQRYNYUOKMNDDV-UHFFFAOYSA-M silver behenate Chemical group [Ag+].CCCCCCCCCCCCCCCCCCCCCC([O-])=O AQRYNYUOKMNDDV-UHFFFAOYSA-M 0.000 claims description 19
- 125000000217 alkyl group Chemical group 0.000 claims description 18
- 229910052739 hydrogen Inorganic materials 0.000 claims description 18
- 239000001257 hydrogen Substances 0.000 claims description 17
- HNYOPLTXPVRDBG-UHFFFAOYSA-N barbituric acid Chemical compound O=C1CC(=O)NC(=O)N1 HNYOPLTXPVRDBG-UHFFFAOYSA-N 0.000 claims description 14
- 229960002317 succinimide Drugs 0.000 claims description 14
- IJAPPYDYQCXOEF-UHFFFAOYSA-N phthalazin-1(2H)-one Chemical compound C1=CC=C2C(=O)NN=CC2=C1 IJAPPYDYQCXOEF-UHFFFAOYSA-N 0.000 claims description 12
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 11
- 125000000753 cycloalkyl group Chemical group 0.000 claims description 10
- 125000000623 heterocyclic group Chemical group 0.000 claims description 10
- 125000006413 ring segment Chemical group 0.000 claims description 10
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 9
- MNMYRUHURLPFQW-UHFFFAOYSA-M silver;dodecanoate Chemical compound [Ag+].CCCCCCCCCCCC([O-])=O MNMYRUHURLPFQW-UHFFFAOYSA-M 0.000 claims description 9
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 8
- XKJCHHZQLQNZHY-UHFFFAOYSA-N phthalimide Chemical compound C1=CC=C2C(=O)NC(=O)C2=C1 XKJCHHZQLQNZHY-UHFFFAOYSA-N 0.000 claims description 7
- 239000004202 carbamide Substances 0.000 claims description 6
- XSCHRSMBECNVNS-UHFFFAOYSA-N benzopyrazine Natural products N1=CC=NC2=CC=CC=C21 XSCHRSMBECNVNS-UHFFFAOYSA-N 0.000 claims description 5
- 229910052736 halogen Inorganic materials 0.000 claims description 5
- 150000002367 halogens Chemical class 0.000 claims description 5
- LFSXCDWNBUNEEM-UHFFFAOYSA-N phthalazine Chemical compound C1=NN=CC2=CC=CC=C21 LFSXCDWNBUNEEM-UHFFFAOYSA-N 0.000 claims description 5
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 4
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims 7
- 125000002704 decyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims 4
- 238000003384 imaging method Methods 0.000 abstract description 19
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 118
- 239000000975 dye Substances 0.000 description 97
- 239000000839 emulsion Substances 0.000 description 74
- 239000000243 solution Substances 0.000 description 66
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 51
- 238000000576 coating method Methods 0.000 description 41
- 239000011248 coating agent Substances 0.000 description 40
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 27
- 239000000203 mixture Substances 0.000 description 26
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 24
- FBSFWRHWHYMIOG-UHFFFAOYSA-N methyl 3,4,5-trihydroxybenzoate Chemical compound COC(=O)C1=CC(O)=C(O)C(O)=C1 FBSFWRHWHYMIOG-UHFFFAOYSA-N 0.000 description 24
- 239000000463 material Substances 0.000 description 23
- 150000003378 silver Chemical class 0.000 description 21
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 20
- 230000003287 optical effect Effects 0.000 description 19
- 238000010521 absorption reaction Methods 0.000 description 17
- 239000007787 solid Substances 0.000 description 16
- 229920005989 resin Polymers 0.000 description 15
- 239000011347 resin Substances 0.000 description 15
- 238000002360 preparation method Methods 0.000 description 14
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 description 13
- IBKQQKPQRYUGBJ-UHFFFAOYSA-N methyl gallate Natural products CC(=O)C1=CC(O)=C(O)C(O)=C1 IBKQQKPQRYUGBJ-UHFFFAOYSA-N 0.000 description 12
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 11
- 229920000728 polyester Polymers 0.000 description 10
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 9
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 9
- 230000008901 benefit Effects 0.000 description 9
- 229940093499 ethyl acetate Drugs 0.000 description 9
- 235000019439 ethyl acetate Nutrition 0.000 description 9
- YAMHXTCMCPHKLN-UHFFFAOYSA-N imidazolidin-2-one Chemical group O=C1NCCN1 YAMHXTCMCPHKLN-UHFFFAOYSA-N 0.000 description 9
- 239000012964 benzotriazole Substances 0.000 description 8
- 229920002301 cellulose acetate Polymers 0.000 description 8
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 7
- 238000002156 mixing Methods 0.000 description 7
- 238000001228 spectrum Methods 0.000 description 7
- JFDZBHWFFUWGJE-UHFFFAOYSA-N benzonitrile Chemical compound N#CC1=CC=CC=C1 JFDZBHWFFUWGJE-UHFFFAOYSA-N 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- WQGWDDDVZFFDIG-UHFFFAOYSA-N pyrogallol Chemical compound OC1=CC=CC(O)=C1O WQGWDDDVZFFDIG-UHFFFAOYSA-N 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000002679 ablation Methods 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 229910052740 iodine Inorganic materials 0.000 description 5
- 229920002451 polyvinyl alcohol Polymers 0.000 description 5
- 230000035945 sensitivity Effects 0.000 description 5
- SODKTLQJMSPUGS-UHFFFAOYSA-N 2-chlorocyclopent-2-ene-1,1-dicarbaldehyde Chemical compound ClC1=CCCC1(C=O)C=O SODKTLQJMSPUGS-UHFFFAOYSA-N 0.000 description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 229920002678 cellulose Polymers 0.000 description 4
- 239000001913 cellulose Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 4
- 239000004611 light stabiliser Substances 0.000 description 4
- 230000002829 reductive effect Effects 0.000 description 4
- 238000010992 reflux Methods 0.000 description 4
- 150000003839 salts Chemical group 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 229920002554 vinyl polymer Polymers 0.000 description 4
- SWEICGMKXPNXNU-UHFFFAOYSA-N 1,2-dihydroindazol-3-one Chemical compound C1=CC=C2C(O)=NNC2=C1 SWEICGMKXPNXNU-UHFFFAOYSA-N 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 150000007513 acids Chemical class 0.000 description 3
- 150000007933 aliphatic carboxylic acids Chemical class 0.000 description 3
- 150000001565 benzotriazoles Chemical class 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- RKJUIXBNRJVNHR-UHFFFAOYSA-N indolenine Natural products C1=CC=C2CC=NC2=C1 RKJUIXBNRJVNHR-UHFFFAOYSA-N 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 229940079877 pyrogallol Drugs 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000000344 soap Substances 0.000 description 3
- FVAUCKIRQBBSSJ-UHFFFAOYSA-M sodium iodide Chemical compound [Na+].[I-] FVAUCKIRQBBSSJ-UHFFFAOYSA-M 0.000 description 3
- 239000012258 stirred mixture Substances 0.000 description 3
- AUHHYELHRWCWEZ-UHFFFAOYSA-N tetrachlorophthalic anhydride Chemical compound ClC1=C(Cl)C(Cl)=C2C(=O)OC(=O)C2=C1Cl AUHHYELHRWCWEZ-UHFFFAOYSA-N 0.000 description 3
- 150000003672 ureas Chemical class 0.000 description 3
- GWEHVDNNLFDJLR-UHFFFAOYSA-N 1,3-diphenylurea Chemical compound C=1C=CC=CC=1NC(=O)NC1=CC=CC=C1 GWEHVDNNLFDJLR-UHFFFAOYSA-N 0.000 description 2
- PWDUSMIDLAJXPJ-UHFFFAOYSA-N 2,3-dihydro-1h-perimidine Chemical compound C1=CC(NCN2)=C3C2=CC=CC3=C1 PWDUSMIDLAJXPJ-UHFFFAOYSA-N 0.000 description 2
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 2
- JGFZNNIVVJXRND-UHFFFAOYSA-N N,N-Diisopropylethylamine (DIPEA) Chemical compound CCN(C(C)C)C(C)C JGFZNNIVVJXRND-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 2
- ZTHYODDOHIVTJV-UHFFFAOYSA-N Propyl gallate Chemical compound CCCOC(=O)C1=CC(O)=C(O)C(O)=C1 ZTHYODDOHIVTJV-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 150000001241 acetals Chemical class 0.000 description 2
- KVNRLNFWIYMESJ-UHFFFAOYSA-N butyronitrile Chemical compound CCCC#N KVNRLNFWIYMESJ-UHFFFAOYSA-N 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- YCIMNLLNPGFGHC-UHFFFAOYSA-N catechol Chemical compound OC1=CC=CC=C1O YCIMNLLNPGFGHC-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- BGTOWKSIORTVQH-UHFFFAOYSA-N cyclopentanone Chemical compound O=C1CCCC1 BGTOWKSIORTVQH-UHFFFAOYSA-N 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 150000002430 hydrocarbons Chemical group 0.000 description 2
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 239000012299 nitrogen atmosphere Substances 0.000 description 2
- KJIFKLIQANRMOU-UHFFFAOYSA-N oxidanium;4-methylbenzenesulfonate Chemical compound O.CC1=CC=C(S(O)(=O)=O)C=C1 KJIFKLIQANRMOU-UHFFFAOYSA-N 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- XHXFXVLFKHQFAL-UHFFFAOYSA-N phosphoryl trichloride Chemical compound ClP(Cl)(Cl)=O XHXFXVLFKHQFAL-UHFFFAOYSA-N 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- CLDWGXZGFUNWKB-UHFFFAOYSA-M silver;benzoate Chemical compound [Ag+].[O-]C(=O)C1=CC=CC=C1 CLDWGXZGFUNWKB-UHFFFAOYSA-M 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- ANRHNWWPFJCPAZ-UHFFFAOYSA-M thionine Chemical compound [Cl-].C1=CC(N)=CC2=[S+]C3=CC(N)=CC=C3N=C21 ANRHNWWPFJCPAZ-UHFFFAOYSA-M 0.000 description 2
- CYIFVRUOHKNECG-UHFFFAOYSA-N tridecan-2-one Chemical compound CCCCCCCCCCCC(C)=O CYIFVRUOHKNECG-UHFFFAOYSA-N 0.000 description 2
- PBTPTBMYJPCXRQ-MGMRMFRLSA-N (2r)-2-[(1s)-1,2-dihydroxyethyl]-3,4-dihydroxy-2h-furan-5-one;hexadecanoic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O.CCCCCCCCCCCCCCCC(O)=O PBTPTBMYJPCXRQ-MGMRMFRLSA-N 0.000 description 1
- 150000000178 1,2,4-triazoles Chemical class 0.000 description 1
- ZWAVGZYKJNOTPX-UHFFFAOYSA-N 1,3-diethylurea Chemical compound CCNC(=O)NCC ZWAVGZYKJNOTPX-UHFFFAOYSA-N 0.000 description 1
- YFOOEYJGMMJJLS-UHFFFAOYSA-N 1,8-diaminonaphthalene Chemical compound C1=CC(N)=C2C(N)=CC=CC2=C1 YFOOEYJGMMJJLS-UHFFFAOYSA-N 0.000 description 1
- GGZHVNZHFYCSEV-UHFFFAOYSA-N 1-Phenyl-5-mercaptotetrazole Chemical compound SC1=NN=NN1C1=CC=CC=C1 GGZHVNZHFYCSEV-UHFFFAOYSA-N 0.000 description 1
- KJUGUADJHNHALS-UHFFFAOYSA-N 1H-tetrazole Substances C=1N=NNN=1 KJUGUADJHNHALS-UHFFFAOYSA-N 0.000 description 1
- ATCRIUVQKHMXSH-UHFFFAOYSA-M 2,4-dichlorobenzoate Chemical compound [O-]C(=O)C1=CC=C(Cl)C=C1Cl ATCRIUVQKHMXSH-UHFFFAOYSA-M 0.000 description 1
- FVQQWSSTYVBNST-UHFFFAOYSA-N 2-(4-methyl-2-sulfanylidene-1,3-thiazol-3-yl)acetic acid Chemical class CC1=CSC(=S)N1CC(O)=O FVQQWSSTYVBNST-UHFFFAOYSA-N 0.000 description 1
- JKFYKCYQEWQPTM-UHFFFAOYSA-N 2-azaniumyl-2-(4-fluorophenyl)acetate Chemical compound OC(=O)C(N)C1=CC=C(F)C=C1 JKFYKCYQEWQPTM-UHFFFAOYSA-N 0.000 description 1
- VHCSBTPOPKFYIU-UHFFFAOYSA-N 2-chloroethanesulfonyl chloride Chemical compound ClCCS(Cl)(=O)=O VHCSBTPOPKFYIU-UHFFFAOYSA-N 0.000 description 1
- VSKJLJHPAFKHBX-UHFFFAOYSA-N 2-methylbuta-1,3-diene;styrene Chemical compound CC(=C)C=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 VSKJLJHPAFKHBX-UHFFFAOYSA-N 0.000 description 1
- UIQPERPLCCTBGX-UHFFFAOYSA-N 2-phenylacetic acid;silver Chemical compound [Ag].OC(=O)CC1=CC=CC=C1 UIQPERPLCCTBGX-UHFFFAOYSA-N 0.000 description 1
- PYSRRFNXTXNWCD-UHFFFAOYSA-N 3-(2-phenylethenyl)furan-2,5-dione Chemical compound O=C1OC(=O)C(C=CC=2C=CC=CC=2)=C1 PYSRRFNXTXNWCD-UHFFFAOYSA-N 0.000 description 1
- MJFITTKTVWJPNO-UHFFFAOYSA-N 3h-dithiole;nickel Chemical compound [Ni].C1SSC=C1 MJFITTKTVWJPNO-UHFFFAOYSA-N 0.000 description 1
- NNJMFJSKMRYHSR-UHFFFAOYSA-M 4-phenylbenzoate Chemical compound C1=CC(C(=O)[O-])=CC=C1C1=CC=CC=C1 NNJMFJSKMRYHSR-UHFFFAOYSA-M 0.000 description 1
- UOGHZHPESMATDD-UHFFFAOYSA-N 5-methoxy-2,3,3-trimethylindole Chemical compound COC1=CC=C2N=C(C)C(C)(C)C2=C1 UOGHZHPESMATDD-UHFFFAOYSA-N 0.000 description 1
- BDDLHHRCDSJVKV-UHFFFAOYSA-N 7028-40-2 Chemical compound CC(O)=O.CC(O)=O.CC(O)=O.CC(O)=O BDDLHHRCDSJVKV-UHFFFAOYSA-N 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- BKGOEKOJWMSNRX-UHFFFAOYSA-L C(C1(C)C(C)(C)C(C(=O)[O-])CC1)(=O)[O-].[Ag+2] Chemical compound C(C1(C)C(C)(C)C(C(=O)[O-])CC1)(=O)[O-].[Ag+2] BKGOEKOJWMSNRX-UHFFFAOYSA-L 0.000 description 1
- SOPOWMHJZSPMBC-UHFFFAOYSA-L C(C1=CC=C(C(=O)[O-])C=C1)(=O)[O-].[Ag+2] Chemical compound C(C1=CC=C(C(=O)[O-])C=C1)(=O)[O-].[Ag+2] SOPOWMHJZSPMBC-UHFFFAOYSA-L 0.000 description 1
- AXVCDCGTJGNMKM-UHFFFAOYSA-L C(C=1C(C(=O)[O-])=CC=CC1)(=O)[O-].[Ag+2] Chemical compound C(C=1C(C(=O)[O-])=CC=CC1)(=O)[O-].[Ag+2] AXVCDCGTJGNMKM-UHFFFAOYSA-L 0.000 description 1
- QBMICFCPWFTWGO-UHFFFAOYSA-N COC(=O)C1=CC=CC=2NN=NC21.[Ag] Chemical compound COC(=O)C1=CC=CC=2NN=NC21.[Ag] QBMICFCPWFTWGO-UHFFFAOYSA-N 0.000 description 1
- 101100278747 Caenorhabditis elegans dve-1 gene Proteins 0.000 description 1
- 229920008347 Cellulose acetate propionate Polymers 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 108010010803 Gelatin Proteins 0.000 description 1
- 150000000996 L-ascorbic acids Chemical class 0.000 description 1
- 239000002841 Lewis acid Substances 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
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 1
- PGSWGPLTYWSSQO-UHFFFAOYSA-N SC=1[N-]C2=C(N1)C=CC=C2.[Ag+] Chemical compound SC=1[N-]C2=C(N1)C=CC=C2.[Ag+] PGSWGPLTYWSSQO-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910021612 Silver iodide Inorganic materials 0.000 description 1
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical class [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 1
- 229920000147 Styrene maleic anhydride Polymers 0.000 description 1
- 229920002253 Tannate Polymers 0.000 description 1
- 241001061127 Thione Species 0.000 description 1
- 229920006383 Tyril Polymers 0.000 description 1
- JXFDPVZHNNCRKT-TYYBGVCCSA-L [Ag+2].[O-]C(=O)\C=C\C([O-])=O Chemical compound [Ag+2].[O-]C(=O)\C=C\C([O-])=O JXFDPVZHNNCRKT-TYYBGVCCSA-L 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- FTWRSWRBSVXQPI-UHFFFAOYSA-N alumanylidynearsane;gallanylidynearsane Chemical compound [As]#[Al].[As]#[Ga] FTWRSWRBSVXQPI-UHFFFAOYSA-N 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
- 125000003277 amino group Chemical group 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000003849 aromatic solvent Substances 0.000 description 1
- 235000010323 ascorbic acid Nutrition 0.000 description 1
- 239000011668 ascorbic acid Substances 0.000 description 1
- 229960005070 ascorbic acid Drugs 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 125000003354 benzotriazolyl group Chemical group N1N=NC2=C1C=CC=C2* 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 229920001400 block copolymer Polymers 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 239000013590 bulk material Substances 0.000 description 1
- FACXGONDLDSNOE-UHFFFAOYSA-N buta-1,3-diene;styrene Chemical compound C=CC=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 FACXGONDLDSNOE-UHFFFAOYSA-N 0.000 description 1
- XOPOEBVTQYAOSV-UHFFFAOYSA-N butyl 3,4,5-trihydroxybenzoate Chemical compound CCCCOC(=O)C1=CC(O)=C(O)C(O)=C1 XOPOEBVTQYAOSV-UHFFFAOYSA-N 0.000 description 1
- KMGBZBJJOKUPIA-UHFFFAOYSA-N butyl iodide Chemical compound CCCCI KMGBZBJJOKUPIA-UHFFFAOYSA-N 0.000 description 1
- CNWSQCLBDWYLAN-UHFFFAOYSA-N butylurea Chemical compound CCCCNC(N)=O CNWSQCLBDWYLAN-UHFFFAOYSA-N 0.000 description 1
- 229910001622 calcium bromide Inorganic materials 0.000 description 1
- WGEFECGEFUFIQW-UHFFFAOYSA-L calcium dibromide Chemical compound [Ca+2].[Br-].[Br-] WGEFECGEFUFIQW-UHFFFAOYSA-L 0.000 description 1
- 239000000298 carbocyanine Substances 0.000 description 1
- 229920006217 cellulose acetate butyrate Polymers 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000007766 curtain coating Methods 0.000 description 1
- FECRFYCAXSHGJH-UHFFFAOYSA-N cyclopent-2-ene-1,1-dicarbaldehyde Chemical compound O=CC1(C=O)CCC=C1 FECRFYCAXSHGJH-UHFFFAOYSA-N 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 150000002023 dithiocarboxylic acids Chemical class 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- LNTHITQWFMADLM-UHFFFAOYSA-M gallate Chemical compound OC1=CC(C([O-])=O)=CC(O)=C1O LNTHITQWFMADLM-UHFFFAOYSA-M 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 230000009477 glass transition Effects 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
- 125000001475 halogen functional group Chemical group 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-M hexanoate Chemical compound CCCCCC([O-])=O FUZZWVXGSFPDMH-UHFFFAOYSA-M 0.000 description 1
- 125000004356 hydroxy functional group Chemical group O* 0.000 description 1
- 150000002460 imidazoles Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 150000007517 lewis acids Chemical class 0.000 description 1
- 239000003446 ligand Substances 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 229940049918 linoleate Drugs 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- GPSDUZXPYCFOSQ-UHFFFAOYSA-M m-toluate Chemical compound CC1=CC=CC(C([O-])=O)=C1 GPSDUZXPYCFOSQ-UHFFFAOYSA-M 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- DZVCFNFOPIZQKX-LTHRDKTGSA-M merocyanine Chemical compound [Na+].O=C1N(CCCC)C(=O)N(CCCC)C(=O)C1=C\C=C\C=C/1N(CCCS([O-])(=O)=O)C2=CC=CC=C2O\1 DZVCFNFOPIZQKX-LTHRDKTGSA-M 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 125000000325 methylidene group Chemical group [H]C([H])=* 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- XRKQMIFKHDXFNQ-UHFFFAOYSA-N n-cyclohexyl-n-ethylcyclohexanamine Chemical compound C1CCCCC1N(CC)C1CCCCC1 XRKQMIFKHDXFNQ-UHFFFAOYSA-N 0.000 description 1
- 239000000025 natural resin Substances 0.000 description 1
- 238000010943 off-gassing Methods 0.000 description 1
- 238000000424 optical density measurement Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- QWYZFXLSWMXLDM-UHFFFAOYSA-M pinacyanol iodide Chemical compound [I-].C1=CC2=CC=CC=C2N(CC)C1=CC=CC1=CC=C(C=CC=C2)C2=[N+]1CC QWYZFXLSWMXLDM-UHFFFAOYSA-M 0.000 description 1
- 238000009428 plumbing Methods 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920006289 polycarbonate film Polymers 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 235000010388 propyl gallate Nutrition 0.000 description 1
- 239000000473 propyl gallate Substances 0.000 description 1
- 229940075579 propyl gallate Drugs 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- IZXSLAZMYLIILP-ODZAUARKSA-M silver (Z)-4-hydroxy-4-oxobut-2-enoate Chemical compound [Ag+].OC(=O)\C=C/C([O-])=O IZXSLAZMYLIILP-ODZAUARKSA-M 0.000 description 1
- NBYLLBXLDOPANK-UHFFFAOYSA-M silver 2-carboxyphenolate hydrate Chemical compound C1=CC=C(C(=C1)C(=O)O)[O-].O.[Ag+] NBYLLBXLDOPANK-UHFFFAOYSA-M 0.000 description 1
- ADZWSOLPGZMUMY-UHFFFAOYSA-M silver bromide Chemical compound [Ag]Br ADZWSOLPGZMUMY-UHFFFAOYSA-M 0.000 description 1
- 229940045105 silver iodide Drugs 0.000 description 1
- YRSQDSCQMOUOKO-KVVVOXFISA-M silver;(z)-octadec-9-enoate Chemical compound [Ag+].CCCCCCCC\C=C/CCCCCCCC([O-])=O YRSQDSCQMOUOKO-KVVVOXFISA-M 0.000 description 1
- RXKRBHZDOVBHAN-UHFFFAOYSA-M silver;1,3-benzoxazol-3-ide-2-thione Chemical compound [Ag+].C1=CC=C2OC([S-])=NC2=C1 RXKRBHZDOVBHAN-UHFFFAOYSA-M 0.000 description 1
- OEVSPXPUUSCCIH-UHFFFAOYSA-M silver;2-acetamidobenzoate Chemical compound [Ag+].CC(=O)NC1=CC=CC=C1C([O-])=O OEVSPXPUUSCCIH-UHFFFAOYSA-M 0.000 description 1
- JRTHUBNDKBQVKY-UHFFFAOYSA-M silver;2-methylbenzoate Chemical compound [Ag+].CC1=CC=CC=C1C([O-])=O JRTHUBNDKBQVKY-UHFFFAOYSA-M 0.000 description 1
- MCKXPYWOIGMEIZ-UHFFFAOYSA-M silver;2h-benzotriazole-4-carboxylate Chemical compound [Ag+].[O-]C(=O)C1=CC=CC2=NNN=C12 MCKXPYWOIGMEIZ-UHFFFAOYSA-M 0.000 description 1
- OXOZKDHFGLELEO-UHFFFAOYSA-M silver;3-carboxy-5-hydroxyphenolate Chemical compound [Ag+].OC1=CC(O)=CC(C([O-])=O)=C1 OXOZKDHFGLELEO-UHFFFAOYSA-M 0.000 description 1
- UCLXRBMHJWLGSO-UHFFFAOYSA-M silver;4-methylbenzoate Chemical compound [Ag+].CC1=CC=C(C([O-])=O)C=C1 UCLXRBMHJWLGSO-UHFFFAOYSA-M 0.000 description 1
- SBMFVNXNRTYADG-UHFFFAOYSA-M silver;5-amino-2-sulfanyl-3h-thiadiazole-4-carboxylate Chemical compound [Ag+].NC1=C(C([O-])=O)NN(S)S1 SBMFVNXNRTYADG-UHFFFAOYSA-M 0.000 description 1
- QHQMZVBSKDIZTK-UHFFFAOYSA-M silver;5-chloro-2h-benzotriazole-4-carboxylate Chemical compound [Ag+].[O-]C(=O)C1=C(Cl)C=CC2=NNN=C12 QHQMZVBSKDIZTK-UHFFFAOYSA-M 0.000 description 1
- CXNMZGJUTRDEMV-UHFFFAOYSA-M silver;ethanedithioate Chemical compound [Ag+].CC([S-])=S CXNMZGJUTRDEMV-UHFFFAOYSA-M 0.000 description 1
- LTYHQUJGIQUHMS-UHFFFAOYSA-M silver;hexadecanoate Chemical compound [Ag+].CCCCCCCCCCCCCCCC([O-])=O LTYHQUJGIQUHMS-UHFFFAOYSA-M 0.000 description 1
- ORYURPRSXLUCSS-UHFFFAOYSA-M silver;octadecanoate Chemical compound [Ag+].CCCCCCCCCCCCCCCCCC([O-])=O ORYURPRSXLUCSS-UHFFFAOYSA-M 0.000 description 1
- OHGHHPYRRURLHR-UHFFFAOYSA-M silver;tetradecanoate Chemical compound [Ag+].CCCCCCCCCCCCCC([O-])=O OHGHHPYRRURLHR-UHFFFAOYSA-M 0.000 description 1
- LJJPELRDXMTDMZ-UHFFFAOYSA-M silver;triazine-4-thiolate Chemical compound [Ag+].[S-]C1=CC=NN=N1 LJJPELRDXMTDMZ-UHFFFAOYSA-M 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 235000009518 sodium iodide Nutrition 0.000 description 1
- 239000011877 solvent mixture Substances 0.000 description 1
- PWEBUXCTKOWPCW-UHFFFAOYSA-N squaric acid Chemical compound OC1=C(O)C(=O)C1=O PWEBUXCTKOWPCW-UHFFFAOYSA-N 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000011145 styrene acrylonitrile resin Substances 0.000 description 1
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 description 1
- 125000005504 styryl group Chemical group 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- PXQLVRUNWNTZOS-UHFFFAOYSA-N sulfanyl Chemical class [SH] PXQLVRUNWNTZOS-UHFFFAOYSA-N 0.000 description 1
- 229940124530 sulfonamide Drugs 0.000 description 1
- HIFJUMGIHIZEPX-UHFFFAOYSA-N sulfuric acid;sulfur trioxide Chemical compound O=S(=O)=O.OS(O)(=O)=O HIFJUMGIHIZEPX-UHFFFAOYSA-N 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000010345 tape casting Methods 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 125000000101 thioether group Chemical group 0.000 description 1
- 238000000411 transmission spectrum Methods 0.000 description 1
- 229920006163 vinyl copolymer Polymers 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- 238000007704 wet chemistry method Methods 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
-
- 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
- G03C1/4989—Photothermographic systems, e.g. dry silver characterised by a thermal imaging step, with or without exposure to light, e.g. with a thermal head, using a laser
Definitions
- the present invention relates to novel thermographic imaging elements and more particularly, it relates to thermographic imaging elements that can be directly imaged using an infrared laser diode.
- the present invention further relates to processes for imaging the inventive thermographic imaging elements using an infrared laser diode.
- Silver halide conventional photographic and photothermographic elements are the most representative elements of the class of light-sensitive materials.
- exposure of the silver halide in the photosensitive emulsion to light produces small clusters of silver atoms (Ag°) .
- the imagewise distribution of these clusters is known in the art as a latent image.
- the latent image formed is not visible by ordinary means and the photosensitive emulsion must be further processed in order to produce a visible image.
- the visible image is produced by the reduction of silver ions, which are in catalytic proximity to silver halide grains bearing the clusters of silver atoms, i.e. the latent image. This produces a black-and-white image.
- Conventional photographic silver halide elements require a wet development process to render the latent image visible.
- the wet chemistry used in this process requires special handling and disposal of the spent chemistry.
- the process equipment is large and require special plumbing.
- the photographic silver halide is in catalytic proximity to a non- photosensitive, reducible silver source (e.g., silver behenate) so that when silver nuclei are generated by light exposure of the silver halide, those nuclei are able to catalyze the reduction of the reducible silver source.
- a non- photosensitive, reducible silver source e.g., silver behenate
- the latent image is rendered visible by application of uniform heat across the element.
- Thermal devices used for developing photothermographic elements address the problems in conventional photographic elements by using a dry process. However photothermographic elements developed using these devices may have uneven or non-uniform image density, image distortions, and/or surface abrasion defects.
- Non-uniform image density defects may occur during the development process due to, for instance, surface variations on the heated member, the presence of foreign matter on the photothermographic element or th heated member, and insufficient allowance for outgassing of volatile materials generated during development.
- Image distortions can occur due to uncontrolled dimensional changes in the base of the photothermographic element during heating and/or cooling of the photothermographic element.
- Surface abrasions or marring may occur by dragging the photothermographic element across a stationary component in the heating device. In many applications such as text and line drawings, these defects may be acceptable.
- users of medical diagnostic, industrial, graphic arts, printed circuit boards, and other imaging applications desire uniform and high quality images.
- U.S. Patent No. 5,041,369 describes a process which capitalizes on the advantages of a dry processed photothermographic element without the need for surface contact with a heating device.
- the photothermographic element is imagewise exposed with a laser which splits the beam using a second harmonic generation device.
- the element is simultaneously exposed with one wavelength of light and thermally activated by the absorption of a light-to-heat near-infrared (NIR) dye at the second wavelength of light.
- NIR near-infrared
- Photosensitive emulsions which contain silver halide are well known in the art to be capable of causing high minimum density (D min ) , both in the visible and ultraviolet (UV) portions of the spectrum.
- the high UV D roin is due to the inherent absorption in the near UV of silver halides, particularly silver bromide and silver iodide, and to high haze when silver halide and organic silver salts are present together.
- High UV D min is undesirable for graphic arts scanner and i agesetting films since it increases the exposure time required during contact exposure with other media such as UV sensitive printing plates, proofing films, and papers. High haze can also lead to loss of image resolution when imaged photothermographic elements are used as contact films.
- thermographic elements A class of imaging elements that do not rely on silver halide-based chemistry is thermographic elements. These materials are widely used in facsimil machines, labels, tickets, charts for recording the output of medical or scientific monitoring apparatus, and the like.
- the thermographic element comprises a support carrying a coating of a thermally-sensitive composition comprisin a color former, usually a substantially colorless electron-donating dye precursor, and a color developer usually an electron-accepting compound.
- Heat is imagewise applied to the element by means of a thermal head, a thermal pen or a laser beam, and upon imagewis applied heating, the color former instantaneously reacts with the color developer to form an image.
- U.S Patent No. 4,904,572 describes a thermographic element which uses leuco dyes to enhance the developed image.
- a leuco dye is the reduced form of a color-bearing dye It is generally colorless or very lightly colored.
- silver behenate acts as a Lewis acid which reacts with the leuco dye upon imagewise application of heat to form a colored image.
- a black image is achieved by the combination of subtractive colors (cyan, yellow, and magenta) . It is well known in the art that it is very difficult to achieve a high density neutral tone black using subtractive colors. Since the image is generated by colored dye formation, the absorption of the image in the ultraviolet is weak and therefore, provides little utility as a UV masking film.
- thermographic films typically requir imaging dwell times of from 1 to 5 seconds . Processin times of this extent are not practical in a laser imaging application. In order to provide an appropriate imaging dwell time for a laser addressable system, there is a need for a thermographic film construction which is capable of forming an in-situ image in microseconds.
- each of the above-mentioned classes of imaging elements has some disadvantage.
- conventional silver halide photographic materials have a high environmental impact due to the wet processing chemistry; photothermographic materials have lower image fastness, limited optical density, and poor dimensional stability; silver halide-based emulsions typically use visible sensitizers which need to be bleached or removed and need to be handled in the dark or subdued light; both conventional photographic and photothermographic elements require a two-step process (exposure and development) ; and conventional thermographic elements require high imaging energy, relatively long thermal imaging dwell times, and have lower image fastness and limited UV optical density.
- the present invention provides a thermographic imaging element comprising a substrate having coated on at least one surface thereof a thermographic imaging system comprising at least one layer comprising light-insensitive organic silver salt; reducing agent for silver ion; a binder; toner; and a dye which absorbs radiation in the wavelength range of about 750-1100 nm, wherein the at least one layer comprising the light-insensitive organic silver salt forms an image density of greater than about 1.0 when exposed to 0.10-2.0 joules/cm 2 of radiation (having a wavelength in the range of about 750-1100 nm)in 0.2-200 microseconds.
- the present invention provides a thermographic imaging element comprising a substrate coated with a thermographic imaging system, the thermographic imaging system comprising at least two adjacent layers, one of the adjacent layers comprising light-insensitive organic silver salt; reducing agent for silver ion; a binder; toner; and optionally, a dye which absorbs radiation having a wavelength in the range of about 750-1100 nm and the other adjacent layer consisting essentially of dye which absorbs radiation in the wavelength in the range of about 750-1100 nm and binder such that the layer comprising the light-insensitive organic silver salt forms an image density of greater than about 1.0 when exposed to 0.10 -2.0 joules/cm 2 of radiation (having a wavelength in the range of about 750-1100 nm) in 0.2 - 200 microseconds.
- the present invention provides a process for forming an image comprising the step of exposing a thermographic imaging element comprising a substrate coated with a thermographic imaging system, comprising at least one layer comprising light-insensitive organic silver salt; reducing agent for silver ion; a binder; a dye which absorbs radiation in the wavelength range of about 750- 1100 nm; and toner, to radiation in the range of about 750-1100 nm such that the at least one layer comprising the light-insensitive organic silver salt forms an image density of greater than about 1.0 when exposed to 0.10 - 2.0 joules/cm 2 of radiation in (having a wavelength in the range of about 750-1100 nm) in 0.2 - 200 microseconds.
- the present invention provides a process for forming an image comprising the step of exposing a thermographic imaging element comprising a substrate coated with a thermographic imaging system, the thermographic imaging system comprising at least two adjacent layers, one of the adjacent layers comprising light-insensitive organic silver salt; reducing agent for silver ion; a binder; toner; and optionally, a dye which absorbs radiation having a wavelength in the range of about 750-1100 nm and the other adjacent layer consisting essentially of binder and dye which absorbs radiation having a wavelength in the range of about 750-1100 nm, to radiation having a wavelength range of about 750-1100 nm which is directed to the thermographic imaging element through the layer comprising the light- insensitive organic silver salt before striking the adjacent layer consisting essentially of binder and dye such that the layer comprising the light-insensitive organic silver salt forms an image density of greater than about 1.0 when exposed to 0.10 - 2.0 joules/cm 2 of radiation (having a wavelength in the range of about
- an image density of greater than about 2.00 and, more preferably, greater than about 2.50, and most preferably, greater than about 2.75 comprising metallic silver is formed in the layer comprising light- insensitive organic silver salt, reducing agent, etc., upon exposure to 0.10 - 2.0 joules/cm 2 of radiation (having a wavelength in the range of about 750-1100 nm) in 0.2 - 200 microseconds.
- thermographic silver emulsion layers comprising light-insensitive organic silver salt, reducing agent for silver ion, etc.
- the layers can incorporate up to about 1.0 wt% silver halide, based upon the total weight of the layer.
- the silver-based thermographic imaging elements and methods for using the thermographic imaging elements as laser addressable direct-write film provided by the present invention overcome many of the problems seen in current systems. Since the thermographic imaging element is thermally-sensitive, rather than photosensitive, it is white light- handleable and does not require removal of a visible sensitizer. Unlike wet silver and photothermographic elements, no post-processing steps are required for development of the image.
- thermographic imaging element When a high power laser diode is scanned across the thermographic imaging element, an in-situ black image is printed out in the thermographic silver emulsion, thus enabling many useful applications such as an on-line inspection system for printed circuit board phototool mask production.
- heat shrinkage of the film is minimized since only the imaged portion of the emulsion is heated and the temperature of the substrate is relatively unchanged. This is especially important for applications where registration is critical, such as image-setting films for color reproduction and printed circuit board phototools.
- the thermographic imaging element is capable of producing high resolution halftone images which are useful in color reproduction processes.
- FIG. 1 shows a schematic representation of a laser sensitometer.
- FIG. 2 shows a graph of distance versus the relative intensity of a laser diode comparing the plots for theoretical versus actual profile data for a flat- topped cone shaped laser spot on the film plane.
- FIG. 3a shows a graph of the total incident exposure energy plotted against the distance across the laser beam in the cross/scan direction.
- FIG. 3b shows a microdensitometer profile of a line imaged with the energy profile depicted in FIG. 3a onto a thermographic element. (Example 16, Sample N not shown.)
- FIG. 4 shows a graph of density versus the log of the exposure using the data shown in FIG. 3a.
- FIG. 5 shows a graph of absorption versus wavelength comparing the imaged and non-imaged areas of a thermographic imaging element. (Example 16, Sample N not shown.)
- thermographic imaging element refers to a substrate coated on at least one surface thereof with a “thermographic imaging system”.
- the thermographic imaging system comprises at least one thermographic silver emulsion layer containing light- insensitive organic silver salt; reducing agent for silver ion; binder; toner; and a dye which absorbs radiation having a wavelength in the range of about 750 - 1100 nm.
- the thermographic imaging system may comprise a layer adjacent to the thermographic silver emulsion layer which contains further radiation-absorbing dye and binder.
- thermographic silver emulsions which are utilized comprise a light- insensitive silver salt; a reducing agent for silver ion; a dye which absorbs radiation having a wavelength in the range of about 750-1100 nm; a toner, binder; and an optional development accelerator.
- the light-insensitive silver salts are materials, which in the presence of a reducing agent, undergo reduction at elevated temperatures, e.g., 60°-225°C, to form silver metal.
- these materials are silver salts of long chain alkanoic acids (also known as long chain aliphatic carboxylic acids or fatty acids) containing 4 to 30 carbon atoms; more preferably, 8 to 28 carbon atoms; and most preferably, 10 to 22 carbon atoms.
- long chain alkanoic acids also known as long chain aliphatic carboxylic acids or fatty acids
- the latter are also known in the art as "silver soaps”.
- Non-limiting examples of silver salts of aliphatic carboxylic acids include silver behenate, silver stearate, silver oleate, silver erucate, silver laurate, silver caproate, silver myristate, silver palmitate, silver maleate, silver fumarate, silver tartarate, silver linoleate, silver camphorate, and mixtures thereof.
- Complexes of organic or inorganic silver salts wherein the ligand has a gross stability constant between 4.0 to 10.0 can also be used.
- Silver salts of aromatic carboxylic acids and other carboxyl group-containing compounds include silver benzoate, a substituted silver benzoate such as silver 3,5-dihydroxybenzoate, silver o-methylbenzoate, silver m-methylbenzoate, silver p-methylbenzoate, silver
- Preferred examples of these compounds include silver 3-mercapto-4-phenyl-l,2,4-triazolate, silver 2-mercaptobenzimidazolate, silver 2-mercapto-5- aminothiadiazolate, silver 2-(S- ethylglycolamido)benzothiazolate; silver salts of thioglycolic acids such as silver salts of S-alkyl thioglycolic acids (wherein the alkyl group has from 12 to 22 carbon atoms) ; silver salts of dithiocarboxylic acids such as silver dithioacetate, silver thioamidoate, silver l-methyl-2-phenyl-4-thiopyridine- 5-carboxylate, silver triazinethiolate, silver 2- sulfidobenzoxazole; and silver salts as disclosed in U.S.
- silver salts of a compound containing an amino group can be used.
- Preferred examples of these compounds include silver salts of benzotriazoles, such as silver benzotriazolate; silver salts of alkyl-substituted benzotriazoles such as silver methylbenzotriazolate, etc.; silver salts of halogen-substituted benzotriazoles such as silver 5-chlorobenzotriazolate, etc.; silver salts of carboimidobenzotriazoles, etc.; silver salts of 1,2,4-triazoles and 1-H-tetrazoles as described in U.S. Pat. No. 4,220,709; silver salts of imidazoles; and the like.
- the light- insensitive silver salt material should constitute from about 5 to 60% by weight and more preferably, from about 30 to 50% by weight, based upon the total weight of the thermographic silver emulsion layer.
- Any reducing agent for silver ion can be used in the present invention.
- Such reducing agents are well- known to those skilled in the art.
- Examples of such reducing agents include, but are not limited to, methyl gallate; hindered phenols; catechol; pyrogallol; hydroquinones; substituted-hydroquinones; ascorbic acid; ascorbic acid derivatives; leuco dyes; and the like.
- the most preferred reducing agents are methyl gallate, butyl gallate, and propyl gallate.
- Whatever reducing agent is employed in the present invention is preferably used in an amount of about 5.0 to 25.0% by weight and more preferably, from about 10.0 to 20.0% by weight, based upon the total weight of the thermographic silver emulsion layer.
- Toners are also used in the thermographic silver emulsion layer(s) .
- toners include phthalazinone, phthalazine, barbituric acid, succinimide, and phthalimide. Combination of toners have been found to be especially useful, the preferred combinations being phthalazinone with barbituric acid and phthalimide with barbituric acid and most preferred being succinimide with barbituric acid.
- the toner(s) should preferably be present in an amount in the range of about 0.2 to 10.0% by weight; more preferably, about 1.0 to 8.0% by weight; and most preferably, about 2.0 to 6.0% by weight, based upon the total weight of the thermographic silver emulsion layer.
- thermographic silver emulsion layer may be optionally included in the thermographic silver emulsion layer depending upon the silver source used.
- the auxiliary reducing agent comprises a 3-indazolinone or urea compound as a development accelerator.
- 3-indazolinone compounds used in the present invention preferably have the following structure:
- R is selected from the group consisting of: hydrogen; an alkyl group of 1 to 4 carbon atoms; halogen; -C00H and -R 1 COOH wherein R 1 is an alkyl group having from 1 to 4 carbon atoms.
- R is hydrogen or an alkyl group having from 1 to 4 carbon atoms and most preferably, R is hydrogen.
- Such 3-indazolinone compounds can be synthesized according to procedures well known to those skilled in the art of synthetic organic chemistry. Alternatively, such materials are commercially available, such as from Aldrich Chemical Company of Milwaukee, Wisconsin; Lancaster Chemical Company of Windham, New Hampshire; and K&K Laboratories of Cleveland, Ohio.
- group is intended to include not only pure hydrocarbon substituents such as methyl, ethyl, and the like, but also such hydrocarbon substituents bearing conventional substituents in the art such as hydroxy, alkoxy, phenyl, halo (F, Cl, Br, I), cyano, nitro, amino, etc.
- Urea compounds used in the present invention preferably have the following formula:
- R 2 -NH-C-NH-R 3 wherein R 2 and R 3 each independently represent hydrogen; a C j -C ⁇ alkyl or cycloalkyl group; or phenyl; or R 2 and R 3 together form a heterocyclic group containing up to 6 ring atoms.
- R 2 and R 3 represent hydrogen; a C x to C 5 alkyl or cycloalkyl group; or phenyl; or R 2 and R 3 together form a heterocyclic group containing up to 5 ring atoms.
- Such urea compounds can be readily synthesized and are commercially available.
- thermographic imaging elements of the present invention are not light-sensitive in the traditional sense and therefore, do not need to contain photosensitive agents such as silver halides; photoinitiator; or photogenerated bleaching agents.
- the thermographic silver emulsion layers can have less than 1%, less than 0.75%, less than 0.5%, or 0% by weight, based upon the total weight of the thermographic silver emulsion, and perform well. The silver halide is deemed to be ineffective if it does not catalyze formation of a latent image.
- Light stabilizers such as benzotriazole, phenylmercaptotetrazole, and other light stabilizers known in the art may be added to the thermographic silver emulsion.
- the preferred light stabilizer is benzotriazole.
- the light stabilizer should preferably be present in an amount in the range of about 0.1% to 3.0% by weight of the thermographic silver emulsion layer and more preferably, from 0.3 to 2.0 wt%.
- thermographic silver emulsion layer utilized in the present invention also employs a binder.
- a binder Any conventional polymeric binder known to those skilled i the art can be utilized.
- the binder may be selected from any of the well-known natural and synthetic resins such as gelatin, polyvinyl acetals, polyvinyl chloride, cellulose acetate, polyolefins, polyesters, polystyrene, polyacrylonitrile, polycarbonates, and the like.
- Copolymers and terpolymers are, of course, included in these definitions, examples of which, include, but are not limited to, the polyvinyl aldehydes, such as polyvinyl acetals, polyvinyl butyrals, polyvinyl formals, and vinyl copolymers.
- the binder should be present in an amount in the range of 10 to 60% by weight and more preferably, 15 to 50% by weight, based upon the total weight of the thermographic silver emulsion layer.
- thermographic element of the present inventio employs a dye which absorbs electromagnetic radiation having a wavelength in the range of between about 750- 1100 nm, preferably in the range of about 750-900 n , and most preferably, in the range of about 750-870 nm.
- the dye should be soluble in the coating solvent, preferably ketones or aromatic solvents, such as methyl ethyl ketone or toluene.
- the dye should also be miscible with the binder and compatible with the silver salts, activators, and developers used in the emulsion.
- the optical density of the dye is preferably greater than 1.0 optical density units with a concomitant weak absorption of less than 0.2 optical density units in the UV region corresponding to the wavelength of exposure devices for which the material will be used as a mask (250-450 nm) .
- the optical density is measured using a MacBeth Model TD523 densitometer equipped with a status 18A filter. It is also desirable, but not necessary, for the dye to have a low visible background absorption.
- the radiation-absorbing dye can be employed in the same layer as the light-insensitive organic silver salt; reducing agent for silver ion; toner; and binder. Alternatively, the dye can be employed in the foregoing layer as well as in an adjacent layer or primarily in the adjacent layer.
- the radiation-absorbing dye may be added directly to the thermographic silver emulsion layer or indirectly by allowing the dye to migrate from the adjacent layer, containing the dye, into the thermographic silver emulsion layer during the manufacturing process of the thermographic imaging element.
- Suitable dyes include, but are not limited to, oxonol, squarylium, chalcogenopyrylarylidene, bis(chalcogenopyrylo)polymethine, bis(aminoaryl)polymethine, merocyanine, trinuclear cyanine, indene-bridged polymethine, oxyindolizine, ferrous complex, quinoid, nickel dithiolene complex, and cyanine dyes such as carbocyanine, azacarbocyanine, hemicyanine, styryl, diazacarbocyanine, triazacarbocyanine, diazahe icyanine, polymethinecyanine, azapolymethinecyanine, holopolar, indocyanine, and diazahemicyanine dyes.
- the amount of dye present in the thermographic imaging element will be dependent upon whether the dye is incorporated solely into the thermographic silver emulsion layer or in an adjacent layer as well.
- the dye When the dye is present solely in the thermographic silver emulsion layer, the dye will be present in an amount of from 0.10-5.0 wt% and preferably from 0.2 - 3.0 wt%, based upon the total weight of the thermographic silver emulsion layer.
- the dye When present in an adjacent layer, the dye will be present in the thermographic silver emulsion layer in an amount of from 0 - 5.0 wt% and preferably, from about 0 - 1.0 wt%, based on the total weight of the thermographic silver emulsion layer.
- the dye In the adjacent layer containing dye and binder, the dye will be present in an amount of from 1-25 wt% and preferably, 5 - 20 wt%, based upon the total weight of the adjacent layer.
- any suitable base or substrate material known to those skilled in the art can be used in the present invention.
- Such materials can be opaque, translucent, or transparent.
- Commonly employed base or substrate materials utilized in the thermographic arts include, but are not limited to, paper; opaque or transparent polyester and polycarbonate films; and specularly light reflective metallic substrates such as silver, gold, and aluminum.
- specularly light reflective metallic substrates refers to metallic substrates, which when struck with light, reflect the light at a particular angle as opposed to reflecting the light across a range of angles.
- a protective or anti-stick layer, positioned on top of the thermographic imaging element may be used. Any conventional anti-stick material may be employed in the present invention.
- anti-stick materials include, but are not limited to waxes, silica particles, styrene-containing elastomeric block copolymers such as styrene-butadiene-styrene, styrene-isoprene-styrene, and blends thereof with such materials as cellulose acetate, cellulose acetate butyrate, cellulose acetate propionate, and poly(vinyl butyral) .
- thermographic elements of the present invention may be incorporated into additional layers such as a primer layer or anti-static layer.
- an anti-static or anti-stick layer may optionally be applied to the back of the support. Materials for such purposes are well known to those skilled in the art.
- thermographic imaging system, anti-stick, infrared or near-infrared dye absorbing, and anti- static layers employed in the present invention can be applied by any conventional method such as knife coating, roll coating, dip coating, curtain coating, hopper coating, etc. If desired, two or more layers may be coated simultaneously by the procedures described in U.S. Patent No. 2,761,791 and British Patent No. 837,095.
- thermographic imaging elements of the present invention are imaged by exposure to infrared or near- infrared laser radiation, typically from a infrared or near-infrared laser diode.
- infrared or near-infrared laser diodes may be advantageously arranged in an array to increase imaging speed.
- Lasers that can be used to provide infrared or near-infrared radiation include substantially any laser capable of generating light in the infrared and near-infrared region of the electromagnetic spectrum from about 750 to 1100 nm, including dye lasers; solid state diode lasers such as aluminum gallium arsenide diode lasers that emit in the region of 780 to 870 nm; and diode-pumped solid state lasers such as Nd:YAG, Nd:YLF, or Nd:glass.
- Silver behenate and silver laurate homogenates may be prepared as disclosed in U.S. Pat. No. 4,210,717 (column 2, lines 55-57) or U.S. Pat. No. 3,457,075 (column 4, lines 23-45 and column 6, lines 37-44).
- Dve 1 5-Sulfamoyl-2,3,3- trimethylindolenine was prepared according to the method described in U.S. Patent No. 4,062,682. A mixture of 37.Og of 5-sulfamoyl-2, 3,3- trimethylindolenine, 16.7mL of 2-chloroethanesulfonyl chloride, and 200mL of acetonitrile were refluxed for 6 hours. After the addition of 18.5mL of water, the mixture was stirred overnight. The separated solid was filtered, washed with acetonitrile, and dried to give 11.Og of a 1-sulfoalkylated quaternary salt intermediate.
- the mixture was distilled under a slight vacuum after the addition of IL of ethylacetate. Approximately 250mL of liquid was collected to which 700mL of ethylacetate was added when a precipitate started to form. The mixture was stirred overnight. The solid was filtered, washed with IL of ethylacetate, followed by heptane, and dried under vacuum at 35°C for 4 hours giving rise to 115.8g of crude chlorocyclopentene dialdehyde.
- the crude chlorocyclopentene dialdehyde was dissolved in 1250 mL of water. Crystals started to appear after about 1 hour. The mixture was allowed to stand over the weekend. The brownish solid was filtered, washed with water, and dried under vacuum at 35°C for 7 hours giving rise to 61.Og of chlorocyclopentene dialdehyde.
- Residual acetic acid and acetic anhydride were removed by suspending the solid in IL of ethyl acetate, followed by stirring for 90 minutes. The solid was filtered and washed with ethyl acetate. The filtrate had a pink hue. The solid was dried at 45°C under vacuum overnight giving rise to 250.Og of Dye 2.
- Dve 3 A mixture of 0.1 moles of Dye 2 prepared above, 0.1 moles of sodium tetraphenylborate, and 500mL of methanol was refluxed with stirring for 10 minutes. The solid was filtered, washed with methanol, followed by water, and then dried to give 0.97 moles of Dye 3.
- Dye 6 is commercially available from Eastman Kodak Co., Rochester, NY.
- Butvar B76 poly(vinyl butyral) , available from 20g Monsanto Co.
- thermographic coating solutions for Examples 1-3 were prepared by mixing the following ingredients with 20g of the silver emulsion described above:
- An infrared-absorbing topcoat solution was prepared by mixing 0.08g of Dye l, l.Og of CA 398-6 cellulose acetate resin, and 20.Og MEK. The topcoat solution was coated onto the thermographic layer at a 0.05mm (2 mils) wet thickness and air dried for 3 minutes at 60°C.
- thermographic coating solutions for Examples 4-6 were prepared by mixing the following ingredients with 20g of the silver emulsion described above:
- An infrared-absorbing topcoat solution was prepared by mixing 0.08g of Dye l, l.Og of CA 398-6 cellulose acetate resin, and 20.Og MEK. The topcoat solution was coated onto the thermographic layer at a 0.05mm (2 mils) wet thickness and air dried for 3 minutes at 60°C.
- Table 1 summarizes the results of exposing the materials of Examples 1-6 with a 810 nanometer laser diode (available from Spectra Diode Labs of San Jose, CA) at 1.75 J/cm 2 focused on the film plane at (a 7 micron spot size) .
- the visible optical densities were measured using a Perkin Elmer microdensitometer PDS 1010M and the UV optical densities were measured using a MacBeth TD52 densitometer equipped with a status 18A filter.
- the UV light stability was determined by allowing the sample to stand in a fluorescent (1,000 foot candles, 90°F) light box for 24 hours.
- Examples 3 and 6 clearly show a significant improvement in UV Dmin light stability when benzotriazole is added to the thermographic silver emulsion.
- Silver Emulsion Silver behenate homogenate
- thermographic coating solution was prepared by adding 20g of the silver emulsion to 0.6g of methyl gallate, O.lg of succinimide, O.lg phthalimide, O.lg tetrachlorophthalic anhydride, 0.02g of benzotriazole, 0.05g of barbituric acid with 4mL of methanol, and ImL of MEK.
- the solution was coated onto a 0.08mm (3 mils) polyester substrate at a 0.08mm (3 mils) wet thickness and air dried at 60°C for 3 minutes.
- An infrared-absorbing topcoat solution was prepared by mixing 0.08g of Dye l, 0.5g of Sekisui BX-1 poly(vinyl butyral) , and 20.Og MEK.
- the topcoat solution was coated onto the thermographic layer at a 0.05mm (2 mils) wet thickness and air dried for 3 minutes at 60°C.
- Example 7 was exposed with a 810 nanometer laser diode (available from Spectra Diode Labs of San Jose, CA) at 1.75 J/cm 2 focused on the film plane at (a 7 micron spot size) .
- the imaged film gave rise to a visible Dmax of 3.4, visible Dmin of 0.08, UV Dmax of 3.6 and UV Dmin of 0.17.
- the visible optical densities were measured using a Perkin Elmer microdensitometer PDS 1010M.
- the UV optical densities were measured using a MacBeth Model TD523 densitometer equipped with a status 18A filter.
- Example 8 The following coating solutions were used in the preparation of Example 8:
- BX-1 poly(vinyl butyral) , available from 15g Sekisui Chemical Co. Acryloid " A-21 acrylic resin, available from 6g Rohm and Haas
- thermographic coating solution was prepared by adding 15g of the silver emulsion to 0.6g of methyl gallate, O.lg phthalazinone, O.lg 2-imidazolidone, O.lg tetrachlorophthalic anhydride, 0.05g of barbituric acid with 4mL of methanol, ImL of MEK, and ImL of tetrahydrofuran. Before coating, 0.13g of Dye 1 was added to the solution. The solution was coated onto a 0.08mm (3 mils) polyester substrate at a 0.08mm (3 mils) wet thickness and air dried at 50°C for 3 minutes.
- thermographic layer A topcoat solution containing a 2.4% by weight solution of BX-1 poly(vinyl butyral) was overcoated onto the thermographic layer at a 0.05mm (2 mil) wet thickness and air dried at 50°C for 3 minutes.
- thermographic coating solutions were prepared by adding 15g of the silver emulsion to 0.6g of methyl gallate, O.lg of succinimide, O.lg of 2-imidazolidone, O.lg of tetrachlorophthalic anhydride, 0.05g of barbituric acid with 4mL of methanol, and ImL of MEK.
- O.O ⁇ g of Dye 2 was added to the solution in Example 2
- O.O ⁇ g of Dye 3 was added to the solution in Example 3.
- the solution was coated onto a 0.08mm (3 mils) polyester substrate at a 0.08mm (3 mils) wet thickness and air dried at 50°C for 3 minutes.
- thermographic layer A topcoat solution containing a 2.4% by weight solution of BX-1 poly(vinyl butyral) was overcoated onto the thermographic layer at a 0.05mm (2 mils) wet thickness and air dried at 50°C for 3 minutes.
- Thermographic Coating Solution was prepared by adding 15g of the silver emulsion to 0.8g of methyl gallate, 0.2g of succinimide, O.lg of phthalazinone, O.lg of 2-imidazolidone in 4mL of methanol, and ImL of methyl ethyl ketone. Before coating, 0.05g of Dye 4 was added to the solution in Example 11 and O.O ⁇ g of Dye 5 was added to the solution in Example 12. The solutions were coated onto a .O ⁇ mm (3 mils) polyester substrate at a 0.1mm (4 mils) wet thickness and air dried at 21°C for 10 minutes.
- thermographic layer A topcoat solution containing a 2.4% by weight solution of CA398-6 cellulose acetate, available from Eastman Kodak Co. , was overcoated onto the thermographic layer at a 0.05mm (2 mils) wet thickness and air dried at 21°C for 20 minutes.
- Table 2 summarizes the results of exposing the materials of Examples ⁇ -12 with a 810 nanometer laser diode (available from Spectra Diode Labs of San Jose, CA) at 1.75 J/cm 2 focused on the film plane at (a 7 micron spot size) .
- Maximum (D max ) and minimum (D min ) optical densities were measured using a MacBeth Model TD523 densitometer equipped with a status 18A filter. Table 2
- thermographic silver emulsion 0.2g of calcium bromide was added to the thermographic coating solution of Example 9.
- the thermographic layer turned totally black when air dried at 21°C for 3 minutes.
- Example 14 The following coating solutions were used in the preparation of Example 14: Silver Emulsion:
- Butvar B-76 poly(vinyl butyral) 20g
- thermographic coating solution was prepared by adding 0.6g of methyl gallate, 0.2g of phthalazinone, O.lg of succinimide, O.lg of 2-imidazolidone, and 0.2g of pyrogallol to 20g of the silver emulsion.
- the solution was coated onto a .08mm (3 mils) polyester substrate at a 0.1mm (4 mils) wet thickness and air dried at 21°C for 10 minutes.
- An infrared-absorbing topcoat solution was prepared by mixing 0.03g of Dye 6, l.Og of CA 398-6 cellulose acetate resin, and 20.Og MEK. The topcoat solution was coated onto the thermographic layer at a 0.05mm (2 mils) wet thickness and air dried for 3 minutes at 60 ⁇ C.
- Example 15 The following coating solutions were used in the preparation of Example 15:
- ButvarTM B-76 poly(vinyl butyral) 20g
- thermographic coating solution was prepared by adding 0.6g of methyl gallate, O.lg of succinimide, O.lg of 2-imidazolidone and 0.2g of L-ascorbic acid palmitate to 20g of the silver emulsion. The solution was coated onto a .08mm (3 mils) polyester substrate at a 0.1mm (4 mils) wet thickness and air dried at 60°C for 3 minutes.
- An infrared-absorbing topcoat solution was prepared by mixing 0.03g of Dye 6, l.Og of CA 398-6 cellulose acetate resin, and 21.Og MEK. The topcoat solution was coated onto the thermographic layer at a 0.05mm (2 mils) wet thickness and air dried for 3 minutes at 60 ⁇ C.
- Table 3 summaries the laser exposure results for each example. Maximum and minimum optical densities were measured using a MacBeth Model TD523 densitometer equipped with a status 18A filter.
- the radiation-absorbing dye may be incorporated primarily into the thermographic silver emulsion layer. It is believed that the thermographic silver emulsion layer is heated above its glass transition temperature, thereby allowing the reducing agent for silver ion to migrate to the light-insensitive organic silver salt (e.g., silver behenate) within the layer. The silver behenate is reduced by the reducing agent to elemental silver, forming a brown/black image. Toners are incorporated into the formulation to obtain a more neutral black color.
- the formation of the elemental silver in the imaged area not only provides UV opacity of the image in the final element, but also is an infrared-absorber which accelerates the image-forming process.
- the intensity of the infrared laser beam decreases exponentially as it penetrates into the thermographic silver emulsion layer.
- the thickness of the thermographic silver emulsion layer and the concentration of infrared dye will effect the sharpness of the image due to the decreasing intensity of the laser beam as a function of distance through the layer.
- the thickness of the thermographic silver emulsion layer is preferably between about l and 10 microns and more preferably, between about 2 and 6 microns.
- the concentration of the infrared dye and the thickness of the layer is adjusted such that the IR absorption of the layer is generally between 20% to 99%; preferably, 50 - 90%; and more preferably, 60 - 65%.
- thermographic silver emulsion layer In high resolution imaging conditions, where the pixel dwell time is short and the laser peak intensity is high, ablation may occur if the infrared dye is incorporated solely in the thermographic emulsion layer of the construction.
- the heating rate is higher at the surface where the laser beam enters into the thermographic silver emulsion layer. As the elemental silver forms, the absorption of the laser beam increases. This can cause the thermographic silver emulsion layer to overheat, thereby causing smoke, damage, or ablation.
- thermographic silver emulsion layer By eliminating or decreasing the concentration of infrared dye in the thermographic silver emulsion layer and adding infrared dye in a layer adjacent to the thermographic silver emulsion layer, the penetration of the laser beam into the thermographic silver emulsion layer can be increased.
- the thermographic imaging element is exposed by directing the laser beam through the thermographic silver emulsion layer before striking the adjacent layer containing infrared dye.
- the infrared-absorbing layer can be positioned either above or below the thermographic silver emulsion layer relative to the substrate upon which the adjacent layers are deposited.
- concentration of infrared dye in the infrared-absorbing layer is chosen such that the highest heating rate occurs at the interface between the infrared-absorbing layer and the thermographic silver emulsion layer.
- the concentration of infrared dye will depend upon the thickness of the thermographic layer and the physical properties of the dye. For example, the concentration of infrared dye in a 1 micron thick thermographic layer is adjusted to achieve an absorption of preferably about 90% or more.
- elemental silver forms at this interface. The elemental silver formed increases the infrared absorption in this region of the thermographic silver emulsion layer and acts as a heat source for the image area within the thermographic silver emulsion layer. As the elemental silver density is built up adjacent to the infrared-absorbing layer, the intensity near the opposite surface of the thermographic silver emulsion layer is attenuated, thus reducing overheating in this region. The profile of the pixel image would resemble an hour-glass shape, thus giving rise to a sharper image.
- Example 16 This example demonstrates the effect of the thickness of the thermographic silver emulsion layer, the resin/silver ratio, the concentration of infrared dye, and the type of topcoat on the imaging characteristics of the inventive thermographic imaging element.
- the following coating solutions are used in preparation of Samples A-P.
- X are variables specified in Table 4.
- Silver Emulsion Silver behenate homogenate 160g
- ButvarTM B-76 poly(vinyl butyral) Xg
- thermographic coating solution was prepared by adding 15g of the silver emulsion to 0.8g of methyl gallate, 0.2g of succinimide, O.lg of phthalazinone, O.lg of 2-imidazolidone in 4mL of methanol and ImL of methyl ethyl ketone. Before coating, Xg of Dye 2 was added to the solution. The solutions were coated onto a .08mm (3 mil) polyester substrate at X wet thickness and air dried at 70 ⁇ C for 3 minutes.
- a topcoat solution comprising a 2.4% by weight solution of CA398-6 cellulose acetate; Scripset” 540 styrene-maleic anhydride copolymer available from Monsanto Company;, Tyril” 880B styrene-acrylonitrile resin available from Dow Chemical Company, or poly(vinyl alcohol) (PVA) , Airvol” 523 available from Air Products and Chemicals, Inc., Allentown, PA and X% Dye 2 was overcoated onto the thermographic layer at X wet thickness and air dried at 50°C for 3 minutes. Samples A-P were scanned with a laser sensitometer at several different scan speeds ranging from 20 to 60 cm/s.
- Density profiles of these lines at 415 nanometers were measured using a Perkin-Elmer microdensitometer PDS 1010M. Optical density measurements were taken at 826 nanometers (laser diode wavelength) and at 415 nanometers for the unimaged elements using a Shimadzu Spectrophotometer MPC- 3100/UV3101PC.
- Thermographic Layer 0.10 0.10 0.10 thickness (wet, mm)
- a laser sensitometer (1) shown in FIG. 1, was used to evaluate the thermographic imaging elements in Example 16.
- the core diameter of the fiber (5) was 100 micrometers and the wavelength of the laser diode (3) was 826 nanometers.
- the power on the rotating drum (4) was 210 milliwatts and the spot shape was a flat-topped cone with a spot size of 45 microns at full width half maximum (FWHM) .
- FWHM full width half maximum
- the flat-topped cone profile is characterized by r 0 , the radius of the peak intensity of the cone, and r,, the outer radius of the cone where the intensity is nearly zero.
- a scanning slit beam profiler was used to measure the intensity profile of the laser spot. Since the profiler integrates the intensity in the direction perpendicular to the slit movement, the actual spot profile was inferred from th profiler data.
- FIG. 2 shows a comparison of the profiler data (6) and the calculated profile data (7) expected for a flat-topped cone intensity profile with r 0 equal to 10 micrometers and r 1 equal to 36 micrometers. The curve was computed by integrating the model flat-topped cone intensity profile in one direction and rescaling.
- FIG. 3a shows the total incident exposure energy plotted versus the distance across the beam in the cross/scan direction. The curve was calculated for the fiber-coupled sensitometer model beam shape, assuming a scan speed of 40 centimeters/seconds.
- FIG. 3b a microdensitometer profile of a line imaged with the energy profile shown in FIG. 3a, onto the thermographic element is shown. (Example 16, Sample N not shown.) The density data was collected using a narrowband filter at 415 nanometers. The density edges in FIG. 3b exhibit gradients that are larger than that of the incident exposure profile shown in FIG. 3a, indicating that the thermographic element (Example 16, Sample N not shown) has a high contrast.
- thermographic element can be examined more quantitatively using a D-logE curve.
- a D-logE curve is a plot of the imaged film density versus the logarithm of the incident exposure energy. The theoretical form for this curve is given by D - log (EE F /E 0 ) ; where is equal to the slope of the D-
- E is equal to the incident exposure energy
- E F is equal to the fog or background level effective energy
- E 0 is equal to the minimum energy required to begin development of the image
- D is equal to the optical density of the element when exposed to exposure energy E.
- the background density is equal to log E F .
- the higher contrast is an advantage for graphic arts applications since high contrast halftone dots are desired for consistent tone curve control and also for new stochastic screening processes. Similar advantages apply to printed circuit board phototool applications.
- the D-logE curve in FIG. 4 shows that the density development begins at approximately 0.9 J/cm 2 and that density saturation at maximum density (D max ) occurs at 1.2 J/cm 2 . It is to be understood that the optimum imaging speed and scanner exposure conditions will be unique for the particular scanner used to image the thermographic element.
- the average value Eo for samples A through L is 0.8 ⁇ 0.2 Joules/cm 2 at a scan speed of 20 cm/s and 0.9 ⁇ 0.2 Joules/cm 2 at a scan speed of 40 cm/s.
- the minimum exposure energy required to begin density development is relatively independent of the scan speed.
- the Esat values are independent of speed as well.
- the average value for Esat is 1.3 ⁇ 0.2 Joules/cm 2 at a scan speed of 20 cm/s and 1.2 ⁇ 0.1 Joules/cm 2 at a scan speed of 40 cm/s.
- the gamma values show evidence of imaging performance differences at the two speeds.
- thermographic silver elements show a more pronounced effect of exposure conditions. Samples C, I, and K were coated with different infrared dye concentrations. Samples C and I have an 80% absorption at the laser diode wavelength of 826 nanometers.
- Sample K was coated to the same thickness but was loaded with more infrared dye so that it absorbs 96% at 826 nanometers.
- the average Eo and Esa values for C and I are 0.93 Joules/cm 2 and 1.21 Joules/cm 2 , respectively, at a scan rate of 40 cm/s.
- the Eo and Esat values for Sample K are 0.66 Joules/cm and 1.0 Joules/cm 2 , respectively.
- the sensitivity of the film appears to be slightly improved by the 16% increase in the layer absorption.
- Samples D, J, and L were coated at half the thickness of C, I, and K. Samples D and J absorb only about 50% of the incident laser radiation, and do not image at the 40 cm/s scan rate. Sample L absorbed 85% of the incident laser radiation.
- the average Eo and Esat values for D and J are 1.0 Joules/cm 2 and 1.9 Joules/cm 2 , respectively at 20 cm/s, whereas the Eo an Esat values for Sample L are 0.35 Joules/cm 2 and 1.0 Joules/cm 2 , respectively.
- the exposure energy values for L are lower than that of D and J.
- Sensitivity is enhanced with increasing laser absorption in the thermographic silver emulsion layer, or with increasin infrared dye concentration.
- the edges of the imaged lines scanned at 40 cm/s in Samples K and L were smoother than the other single infrared layer samples. The line edge sharpness can be improved by increasing the infrared dye concentration in the layer.
- a comparison of samples with different thicknesses, but similar absorption percentages, indicates that a thinner coating with a higher infrared dye concentration is more sensitive than one with a thicker coating.
- the Eo and Esat values for K are 0.56 and 1.3 Joules/cm 2 , respectively, at 20 cm/s, whereas the Eo and Esat values for L are 0.35 and 1.0
- thermographic silver emulsion layer containing infrared dye can be maximized by coating the thermographic silver emulsion layer as thin as possible with the highest achievable infrared dye concentration, while maintaining the desired maximum density.
- the quality of the imaged line is affected by the resin to silver ratio.
- the exposure energy values and the gamma values are not significantly affected by changes in the resin to silver ratio, as shown in Table 5 for Samples A, C, and E.
- the micrographs of these samples indicate that the resin to silver ratio does affect the image quality of the lines.
- the edges of the lines become rough and jagged, and the density uniformity across and along the imaged line decreases. Decreasing the resin concentration should enhance the sensitivity of the material due to less bulk material to heat. However, the jagged edges appear to have offset this advantage.
- the resin to silver ratio is preferably between about 25 - 50 wt%.
- Another embodiment of the present invention comprises the addition of infrared dye in a layer adjacent to the thermographic silver emulsion layer.
- Samples N, 0, G, H, and P in Example 16 evaluate the addition of an infrared dye in the topcoat of a thermographic element. For some unknown reason, Samples M, G, and H imaged poorly and therefore, are not included in Table 4. Samples N, 0, and P exhibited improved line quality compared to the samples containing infrared dye in the thermographic layer only.
- the thermographic silver layers in Samples N, 0, and P were overcoated with a .05 millimeter coating of Scripset "" resin that contains a high concentration of infrared dye.
- Samples N and O have gamma values greater than 34 and 30, respectively, at a scan speed of 40 cm/s. These gamma values are comparable to a conventional silver halide duplication film. For comparison, a typical rapid access silver halide film has a gamma of approximately 10.
- the quality of Sample P is similar to N and 0, although a D-log E curve was not computed for this sample. Both N and O exhibit sharp smooth line edges with an approximate 1 micron edge roughness. The samples containing infrared dye in the thermographic silver layer only had rougher edges than Samples N and O.
- the density uniformity of Samples N, 0, and P were within ⁇ 5%.
- the sensitivity of Samples N and 0 are comparable to the samples having no topcoat containing infrared dye. No ablation was observed in Samples N, O and P.
- Improved edge contrast, edge sharpness, and density uniformity can be achieved by the addition of infrared dye in a layer adjacent to the thermographic silver layer.
- the concentration of the infrared dye in the thermographic silver layer is in an amount such that the absorption of the laser radiation in the thermographic layer is preferably less than or equal to 40% and more preferably, less than or equal to 35%.
- FIG. 5 shows the imaged (8) and non-imaged (background) (9) transmission spectra for Example 16, Sample N.
- the enhanced infrared dye absorption peak at 820 nanometers is clearly evident.
- the density at the laser diode wavelength of 826 nanometers increases from 0.84 (14.5% transmission) to 1.26 (5.5% transmission), while the density at 415 nanometers increases from 0.355 (44.2% transmission) to 5.0 (nearly 0% transmission) .
- the elemental silver formed in the thermographic layer during exposure provides an enhanced absorption difference in the ultraviolet (UV) , which is an advantage in UV mask applications.
- the D max measured by the microdensitometer was 3.7 which is lower than the value obtained from the spectrophotometer. Apparently, the maximum optical density that can be measured by the microdensitometer is limited to about 3.7. This implies that many of the gamma values computed in Table 5 are lower than the true values and therefore, should be treated as conservative estimates.
- thermographic elements In order to compare the imaging characteristics of the thermographic elements with little or no effects due to heat dissipation.
- Examples 1, 2, 3, 4, 5, 6 and 16 (Sample N) were imaged using a 150 milliwatt (110 milliwatts at the image plane) laser diode (SDL-5422, available from Spectra Diode Labs) emitting at 811 nanometers. The beam was focused to an 8 micrometer spot size (full width at 1/e 2 level) and scanned at 213 centimeters/second with a 4.5 micrometer cross scan line spacing. Table 6 summarizes the results from this evaluation.
- the data shows that the higher contrast(Dmax-Dmin) films are achieved when silver laurate is used in combination with barbituric acid in the thermographic silver emulsion layer (Examples 5 and 6) or a higher concentration of methyl gallate is used in the silver behenate formulation (Example 16, Sample N) .
- the contrast is preferably greater than about 2.50.
- the data also shows that the addition of benzotriazole inhibits the speed of the film; however, the decrease in speed is minimized when silver laurate is used for the silver soap. Even though a slight decrease in speed may be observed, the improved light stability, as shown in Table 1, provides an advantage for including benzotriazole in the thermographic silver emulsion.
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP95927547A EP0783726B1 (en) | 1994-09-27 | 1995-08-01 | Laser addressable thermographic elements |
DE69515496T DE69515496T2 (en) | 1994-09-27 | 1995-08-01 | LASER ADDRESSABLE THERMOGRAPHIC ELEMENTS |
MX9702044A MX9702044A (en) | 1994-09-27 | 1995-08-01 | Laser addressable thermographic elements. |
BR9509042A BR9509042A (en) | 1994-09-27 | 1995-08-01 | Thermographic image generating element and process for image formation |
JP8511726A JPH10506339A (en) | 1994-09-27 | 1995-08-01 | Laser addressable thermal transfer element |
KR1019970702019A KR970706523A (en) | 1994-09-27 | 1995-08-01 | Laser addressable thermographic devices (LASER ADDRESSABLE THERMOGRAPHIC ELEMENTS) |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US31301194A | 1994-09-27 | 1994-09-27 | |
US08/313,011 | 1994-09-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996010213A1 true WO1996010213A1 (en) | 1996-04-04 |
Family
ID=23213996
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1995/009659 WO1996010213A1 (en) | 1994-09-27 | 1995-08-01 | Laser addressable thermographic elements |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP0783726B1 (en) |
JP (1) | JPH10506339A (en) |
KR (1) | KR970706523A (en) |
CN (1) | CN1158660A (en) |
BR (1) | BR9509042A (en) |
CA (1) | CA2197469A1 (en) |
DE (1) | DE69515496T2 (en) |
IL (1) | IL115056A0 (en) |
MX (1) | MX9702044A (en) |
WO (1) | WO1996010213A1 (en) |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0764877A1 (en) * | 1995-09-19 | 1997-03-26 | Imation Corp. | Laser addressable imaging elements |
US5780483A (en) * | 1995-02-17 | 1998-07-14 | Smithkline Beecham Corporation | IL-8 receptor antagonists |
WO1998052100A1 (en) * | 1997-05-13 | 1998-11-19 | Imation Corp. | Gallic acid as a laser direct thermal developer |
US5886044A (en) * | 1995-02-17 | 1999-03-23 | Smithkline Beecham Corporation | IL-8 receptor antagonists |
US6005008A (en) * | 1996-02-16 | 1999-12-21 | Smithkline Beecham Corporation | IL-8 receptor antagonists |
US6030764A (en) * | 1996-05-21 | 2000-02-29 | Agfa-Gevaert | Production process for a thermographic recording material with improved stability and image-tone |
US6133319A (en) * | 1996-06-27 | 2000-10-17 | Smithkline Beecham Corporation | IL-8 receptor antagonists |
US6211373B1 (en) | 1996-03-20 | 2001-04-03 | Smithkline Beecham Corporation | Phenyl urea antagonists of the IL-8 receptor |
US6262113B1 (en) | 1996-03-20 | 2001-07-17 | Smithkline Beecham Corporation | IL-8 receptor antagonists |
US6271261B1 (en) | 1996-06-27 | 2001-08-07 | Smithkline Beecham Corporation | IL-8 receptor antagonists |
US6348308B1 (en) | 1997-09-03 | 2002-02-19 | Agfa-Gevaert | Substantially light-insensitive thermographic recording material with improved stability and image-tone |
EP1006403B1 (en) * | 1998-11-30 | 2004-10-20 | Agfa-Gevaert | Use of direct thermal transparent imaging materials including an organic silver salt for producing labels |
US6902880B2 (en) | 2002-11-14 | 2005-06-07 | Agfa-Gevaert | Stabilizers for use in substantially light-insensitive thermographic recording materials |
US6908731B2 (en) | 2002-11-14 | 2005-06-21 | Agfa-Gevaert | Stabilizers for use in substantially light-insensitive thermographic recording materials |
EP0809142B1 (en) * | 1996-05-21 | 2005-08-31 | Agfa-Gevaert | Production process for a thermographic recording material with improved stability and image-tone |
US7018786B2 (en) | 2002-12-19 | 2006-03-28 | Agfa Gevaert | Toning agents for use in thermographic recording materials |
US7060655B2 (en) | 2002-11-14 | 2006-06-13 | Agfa Gevaert | Stabilizers for use in substantially light-insensitive thermographic recording materials |
EP1810998A3 (en) * | 2006-01-19 | 2009-06-03 | Ferrania Technologies S.p.A. | Fluorescent cyanine dye |
US8440383B2 (en) | 2006-07-17 | 2013-05-14 | E I Du Pont De Nemours And Company | Metal compositions, thermal imaging donors and patterned multilayer compositions derived therefrom |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101750870B (en) * | 2008-12-17 | 2012-05-30 | 中国科学院理化技术研究所 | Application of niacin compound serving as toner in direct thermographic material |
CN102275399A (en) * | 2010-06-08 | 2011-12-14 | 何仁城 | Temperature-sensitive printing method and apparatus utilizing light |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0582144A1 (en) * | 1992-08-03 | 1994-02-09 | Minnesota Mining And Manufacturing Company | Laser addressable thermal recording material |
-
1995
- 1995-08-01 EP EP95927547A patent/EP0783726B1/en not_active Expired - Lifetime
- 1995-08-01 KR KR1019970702019A patent/KR970706523A/en not_active Application Discontinuation
- 1995-08-01 BR BR9509042A patent/BR9509042A/en not_active Application Discontinuation
- 1995-08-01 JP JP8511726A patent/JPH10506339A/en active Pending
- 1995-08-01 DE DE69515496T patent/DE69515496T2/en not_active Expired - Fee Related
- 1995-08-01 MX MX9702044A patent/MX9702044A/en unknown
- 1995-08-01 WO PCT/US1995/009659 patent/WO1996010213A1/en not_active Application Discontinuation
- 1995-08-01 CN CN95195324A patent/CN1158660A/en active Pending
- 1995-08-01 CA CA002197469A patent/CA2197469A1/en not_active Abandoned
- 1995-08-24 IL IL11505695A patent/IL115056A0/en unknown
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0582144A1 (en) * | 1992-08-03 | 1994-02-09 | Minnesota Mining And Manufacturing Company | Laser addressable thermal recording material |
Cited By (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5780483A (en) * | 1995-02-17 | 1998-07-14 | Smithkline Beecham Corporation | IL-8 receptor antagonists |
US6180675B1 (en) | 1995-02-17 | 2001-01-30 | Smithkline Beecham Corporation | IL-8 receptor antagonists |
US5886044A (en) * | 1995-02-17 | 1999-03-23 | Smithkline Beecham Corporation | IL-8 receptor antagonists |
US5766828A (en) * | 1995-09-19 | 1998-06-16 | Imation Corp. | Laser addressable imaging elements |
EP0764877A1 (en) * | 1995-09-19 | 1997-03-26 | Imation Corp. | Laser addressable imaging elements |
US6005008A (en) * | 1996-02-16 | 1999-12-21 | Smithkline Beecham Corporation | IL-8 receptor antagonists |
US6211373B1 (en) | 1996-03-20 | 2001-04-03 | Smithkline Beecham Corporation | Phenyl urea antagonists of the IL-8 receptor |
US6262113B1 (en) | 1996-03-20 | 2001-07-17 | Smithkline Beecham Corporation | IL-8 receptor antagonists |
EP0809142B1 (en) * | 1996-05-21 | 2005-08-31 | Agfa-Gevaert | Production process for a thermographic recording material with improved stability and image-tone |
US6306573B1 (en) | 1996-05-21 | 2001-10-23 | Agfa-Gevaert | Production process for a benzotriazole-containing thermographic recording material with improved stability and image-tone |
US6030764A (en) * | 1996-05-21 | 2000-02-29 | Agfa-Gevaert | Production process for a thermographic recording material with improved stability and image-tone |
US6133319A (en) * | 1996-06-27 | 2000-10-17 | Smithkline Beecham Corporation | IL-8 receptor antagonists |
US6271261B1 (en) | 1996-06-27 | 2001-08-07 | Smithkline Beecham Corporation | IL-8 receptor antagonists |
US5840469A (en) * | 1997-05-13 | 1998-11-24 | Imation Corp. | Gallic acid as a laser direct thermal developer |
WO1998052100A1 (en) * | 1997-05-13 | 1998-11-19 | Imation Corp. | Gallic acid as a laser direct thermal developer |
US6348308B1 (en) | 1997-09-03 | 2002-02-19 | Agfa-Gevaert | Substantially light-insensitive thermographic recording material with improved stability and image-tone |
EP1006403B1 (en) * | 1998-11-30 | 2004-10-20 | Agfa-Gevaert | Use of direct thermal transparent imaging materials including an organic silver salt for producing labels |
US6908731B2 (en) | 2002-11-14 | 2005-06-21 | Agfa-Gevaert | Stabilizers for use in substantially light-insensitive thermographic recording materials |
US6902880B2 (en) | 2002-11-14 | 2005-06-07 | Agfa-Gevaert | Stabilizers for use in substantially light-insensitive thermographic recording materials |
US7060655B2 (en) | 2002-11-14 | 2006-06-13 | Agfa Gevaert | Stabilizers for use in substantially light-insensitive thermographic recording materials |
US7018786B2 (en) | 2002-12-19 | 2006-03-28 | Agfa Gevaert | Toning agents for use in thermographic recording materials |
EP1810998A3 (en) * | 2006-01-19 | 2009-06-03 | Ferrania Technologies S.p.A. | Fluorescent cyanine dye |
US8440383B2 (en) | 2006-07-17 | 2013-05-14 | E I Du Pont De Nemours And Company | Metal compositions, thermal imaging donors and patterned multilayer compositions derived therefrom |
Also Published As
Publication number | Publication date |
---|---|
KR970706523A (en) | 1997-11-03 |
MX9702044A (en) | 1997-06-28 |
CA2197469A1 (en) | 1996-04-04 |
DE69515496T2 (en) | 2000-09-14 |
BR9509042A (en) | 1997-09-30 |
CN1158660A (en) | 1997-09-03 |
EP0783726A1 (en) | 1997-07-16 |
DE69515496D1 (en) | 2000-04-13 |
IL115056A0 (en) | 1995-12-08 |
EP0783726B1 (en) | 2000-03-08 |
JPH10506339A (en) | 1998-06-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0783726B1 (en) | Laser addressable thermographic elements | |
MXPA97002044A (en) | Thermographic elements addressable with the | |
EP0582144B1 (en) | Laser addressable thermal recording material | |
JP3647944B2 (en) | Photothermographic and thermographic components | |
US5599647A (en) | New toning agents for thermographic and photothermographic materials and process | |
JP3980636B2 (en) | Photothermographic components with reduced grain interference pattern | |
EP0723188A1 (en) | Sulfonyl hydrazine developers for photothermographic and thermographic elements | |
JP2001513211A (en) | Black-and-white photothermographic element and thermal transfer element containing acrylonitrile compound substituted with 3-heteroaromatic group as co-developer | |
EP0733942B1 (en) | Mottle reducing agent for photothermographic and thermographic elements | |
DE69730376T2 (en) | (Photo) thermographic material with improved transport properties | |
US5493327A (en) | Method and apparatus for producing image reproducing materials using photothermographic material sensitive to radiation in the red region and transparent to radiation in the ultraviolet range of the electromagnetic spectrum | |
US5840469A (en) | Gallic acid as a laser direct thermal developer | |
US5411929A (en) | Thermally-processable image recording materials including substituted purine compounds | |
EP0599369B1 (en) | Thermosensitive recording material | |
EP0677775B1 (en) | Thermal transfer imaging process | |
JPH05249606A (en) | Positive type photothermic photographic material | |
GB1566018A (en) | Thermally developable light-sensitive materials | |
EP0831364B1 (en) | Method for the formation of a heat mode image | |
US5814430A (en) | Method for the formation of an improved heat mode image | |
JP2023181971A (en) | Image formation method | |
JP2023014468A (en) | Heat-sensitive recording material | |
JP2022113924A (en) | Heat-sensitive recording material | |
TW202313364A (en) | Heat-sensitive recording material | |
JPH0720598A (en) | Optothermographic material which is sensitive to electromagnetic beam in red region of electromagnetic spectrum and which is transparent to electromagnetic beam in ultraviolet region of electromagnetic beam | |
JPH08179459A (en) | Image formation method of heat-sensitive material |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 95195324.9 Country of ref document: CN |
|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): BR CA CN JP KR MX SG |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2197469 Country of ref document: CA |
|
WWE | Wipo information: entry into national phase |
Ref document number: PA/a/1997/002044 Country of ref document: MX |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1995927547 Country of ref document: EP Ref document number: 1019970702019 Country of ref document: KR |
|
WWP | Wipo information: published in national office |
Ref document number: 1995927547 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 1019970702019 Country of ref document: KR |
|
WWG | Wipo information: grant in national office |
Ref document number: 1995927547 Country of ref document: EP |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 1019970702019 Country of ref document: KR |