EP2289703A1 - Thermosensitive recording material containing nanoparticles - Google Patents
Thermosensitive recording material containing nanoparticles Download PDFInfo
- Publication number
- EP2289703A1 EP2289703A1 EP09010891A EP09010891A EP2289703A1 EP 2289703 A1 EP2289703 A1 EP 2289703A1 EP 09010891 A EP09010891 A EP 09010891A EP 09010891 A EP09010891 A EP 09010891A EP 2289703 A1 EP2289703 A1 EP 2289703A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- recording material
- parts
- material according
- coating
- color
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000000463 material Substances 0.000 title claims abstract description 40
- 239000002105 nanoparticle Substances 0.000 title claims abstract description 13
- 239000011248 coating agent Substances 0.000 claims abstract description 58
- 238000000576 coating method Methods 0.000 claims abstract description 58
- 239000006096 absorbing agent Substances 0.000 claims abstract description 26
- 239000000758 substrate Substances 0.000 claims abstract description 15
- 239000002904 solvent Substances 0.000 claims abstract description 12
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical class OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 claims abstract description 7
- 150000003951 lactams Chemical class 0.000 claims abstract description 5
- 229910052751 metal Inorganic materials 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims abstract description 5
- 150000002989 phenols Chemical class 0.000 claims abstract description 5
- 238000004519 manufacturing process Methods 0.000 claims abstract description 4
- 150000002739 metals Chemical class 0.000 claims abstract description 4
- 239000000440 bentonite Substances 0.000 claims abstract description 3
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 3
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical group O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000002657 fibrous material Substances 0.000 claims abstract description 3
- 150000002484 inorganic compounds Chemical class 0.000 claims abstract description 3
- 150000002894 organic compounds Chemical group 0.000 claims abstract description 3
- 229920003023 plastic Polymers 0.000 claims abstract description 3
- 239000004033 plastic Substances 0.000 claims abstract description 3
- 150000003413 spiro compounds Chemical class 0.000 claims abstract description 3
- 150000001875 compounds Chemical class 0.000 claims abstract 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 51
- 239000011230 binding agent Substances 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 13
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 10
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 9
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000008119 colloidal silica Substances 0.000 claims description 5
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 4
- 238000010330 laser marking Methods 0.000 claims description 4
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims description 4
- 239000004408 titanium dioxide Substances 0.000 claims description 4
- 239000011787 zinc oxide Substances 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 229960004889 salicylic acid Drugs 0.000 claims description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical group [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 2
- 239000011111 cardboard Substances 0.000 claims description 2
- 230000005670 electromagnetic radiation Effects 0.000 claims description 2
- 239000011087 paperboard Substances 0.000 claims description 2
- 239000000049 pigment Substances 0.000 claims description 2
- 229940088417 precipitated calcium carbonate Drugs 0.000 claims description 2
- 229910001887 tin oxide Inorganic materials 0.000 claims description 2
- 230000001678 irradiating effect Effects 0.000 claims 1
- 150000003751 zinc Chemical class 0.000 abstract 2
- 229910010272 inorganic material Inorganic materials 0.000 abstract 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 33
- 239000004372 Polyvinyl alcohol Substances 0.000 description 17
- 229910000019 calcium carbonate Inorganic materials 0.000 description 17
- 239000004816 latex Substances 0.000 description 16
- 229920000126 latex Polymers 0.000 description 16
- 238000004040 coloring Methods 0.000 description 12
- -1 p-nitrobenzoyl leucomethylene blue Chemical compound 0.000 description 12
- 229920000642 polymer Polymers 0.000 description 11
- 239000004927 clay Substances 0.000 description 10
- 229910052570 clay Inorganic materials 0.000 description 10
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 9
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 9
- XAAILNNJDMIMON-UHFFFAOYSA-N 2'-anilino-6'-(dibutylamino)-3'-methylspiro[2-benzofuran-3,9'-xanthene]-1-one Chemical compound C=1C(N(CCCC)CCCC)=CC=C(C2(C3=CC=CC=C3C(=O)O2)C2=C3)C=1OC2=CC(C)=C3NC1=CC=CC=C1 XAAILNNJDMIMON-UHFFFAOYSA-N 0.000 description 8
- 239000000126 substance Substances 0.000 description 8
- 239000000080 wetting agent Substances 0.000 description 8
- JXSJBGJIGXNWCI-UHFFFAOYSA-N diethyl 2-[(dimethoxyphosphorothioyl)thio]succinate Chemical compound CCOC(=O)CC(SP(=S)(OC)OC)C(=O)OCC JXSJBGJIGXNWCI-UHFFFAOYSA-N 0.000 description 6
- 239000000975 dye Substances 0.000 description 6
- 230000002378 acidificating effect Effects 0.000 description 5
- WLTCCDHHWYAMCG-UHFFFAOYSA-N 2-phenylmethoxynaphthalene Chemical compound C=1C=C2C=CC=CC2=CC=1OCC1=CC=CC=C1 WLTCCDHHWYAMCG-UHFFFAOYSA-N 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 230000002745 absorbent Effects 0.000 description 3
- 239000002250 absorbent Substances 0.000 description 3
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical class OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- PYWVYCXTNDRMGF-UHFFFAOYSA-N rhodamine B Chemical compound [Cl-].C=12C=CC(=[N+](CC)CC)C=C2OC2=CC(N(CC)CC)=CC=C2C=1C1=CC=CC=C1C(O)=O PYWVYCXTNDRMGF-UHFFFAOYSA-N 0.000 description 3
- AGPLQTQFIZBOLI-UHFFFAOYSA-N 1-benzyl-4-phenylbenzene Chemical group C=1C=C(C=2C=CC=CC=2)C=CC=1CC1=CC=CC=C1 AGPLQTQFIZBOLI-UHFFFAOYSA-N 0.000 description 2
- KJCVRFUGPWSIIH-UHFFFAOYSA-N 1-naphthol Chemical compound C1=CC=C2C(O)=CC=CC2=C1 KJCVRFUGPWSIIH-UHFFFAOYSA-N 0.000 description 2
- JWAZRIHNYRIHIV-UHFFFAOYSA-N 2-naphthol Chemical compound C1=CC=CC2=CC(O)=CC=C21 JWAZRIHNYRIHIV-UHFFFAOYSA-N 0.000 description 2
- OMNHTTWQSSUZHO-UHFFFAOYSA-N 4-hydroxy-3,5-dimethylbenzoic acid Chemical compound CC1=CC(C(O)=O)=CC(C)=C1O OMNHTTWQSSUZHO-UHFFFAOYSA-N 0.000 description 2
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000000981 basic dye Substances 0.000 description 2
- YXVFYQXJAXKLAK-UHFFFAOYSA-N biphenyl-4-ol Chemical compound C1=CC(O)=CC=C1C1=CC=CC=C1 YXVFYQXJAXKLAK-UHFFFAOYSA-N 0.000 description 2
- PXKLMJQFEQBVLD-UHFFFAOYSA-N bisphenol F Chemical compound C1=CC(O)=CC=C1CC1=CC=C(O)C=C1 PXKLMJQFEQBVLD-UHFFFAOYSA-N 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- JJXVDRYFBGDXOU-UHFFFAOYSA-N dimethyl 4-hydroxybenzene-1,2-dicarboxylate Chemical compound COC(=O)C1=CC=C(O)C=C1C(=O)OC JJXVDRYFBGDXOU-UHFFFAOYSA-N 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- FWQHNLCNFPYBCA-UHFFFAOYSA-N fluoran Chemical compound C12=CC=CC=C2OC2=CC=CC=C2C11OC(=O)C2=CC=CC=C21 FWQHNLCNFPYBCA-UHFFFAOYSA-N 0.000 description 2
- LNTHITQWFMADLM-UHFFFAOYSA-N gallic acid Chemical compound OC(=O)C1=CC(O)=C(O)C(O)=C1 LNTHITQWFMADLM-UHFFFAOYSA-N 0.000 description 2
- 150000007522 mineralic acids Chemical class 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- IAUKWGFWINVWKS-UHFFFAOYSA-N 1,2-di(propan-2-yl)naphthalene Chemical compound C1=CC=CC2=C(C(C)C)C(C(C)C)=CC=C21 IAUKWGFWINVWKS-UHFFFAOYSA-N 0.000 description 1
- JWSWULLEVAMIJK-UHFFFAOYSA-N 1-phenylmethoxynaphthalene Chemical compound C=1C=CC2=CC=CC=C2C=1OCC1=CC=CC=C1 JWSWULLEVAMIJK-UHFFFAOYSA-N 0.000 description 1
- HUOKHAMXPNSWBJ-UHFFFAOYSA-N 2'-chloro-6'-(diethylamino)-3'-methylspiro[2-benzofuran-3,9'-xanthene]-1-one Chemical compound O1C(=O)C2=CC=CC=C2C21C1=CC(Cl)=C(C)C=C1OC1=CC(N(CC)CC)=CC=C21 HUOKHAMXPNSWBJ-UHFFFAOYSA-N 0.000 description 1
- GSCLSACFHWKTQU-UHFFFAOYSA-N 2'-chloro-6'-(diethylamino)spiro[2-benzofuran-3,9'-xanthene]-1-one Chemical compound O1C(=O)C2=CC=CC=C2C21C1=CC(Cl)=CC=C1OC1=CC(N(CC)CC)=CC=C21 GSCLSACFHWKTQU-UHFFFAOYSA-N 0.000 description 1
- KGRVJHAUYBGFFP-UHFFFAOYSA-N 2,2'-Methylenebis(4-methyl-6-tert-butylphenol) Chemical compound CC(C)(C)C1=CC(C)=CC(CC=2C(=C(C=C(C)C=2)C(C)(C)C)O)=C1O KGRVJHAUYBGFFP-UHFFFAOYSA-N 0.000 description 1
- ALLSOOQIDPLIER-UHFFFAOYSA-N 2,3,4-trichlorobenzoic acid Chemical compound OC(=O)C1=CC=C(Cl)C(Cl)=C1Cl ALLSOOQIDPLIER-UHFFFAOYSA-N 0.000 description 1
- YNVPKQHDJLISIA-UHFFFAOYSA-N 2-butyl-4-tert-butylbenzoic acid Chemical compound C(C)(C)(C)C1=CC(=C(C(=O)O)C=C1)CCCC YNVPKQHDJLISIA-UHFFFAOYSA-N 0.000 description 1
- UXDLAKCKZCACAX-UHFFFAOYSA-N 2-hydroxy-3,5-bis(1-phenylethyl)benzoic acid Chemical compound C=1C(C(C)C=2C=CC=CC=2)=C(O)C(C(O)=O)=CC=1C(C)C1=CC=CC=C1 UXDLAKCKZCACAX-UHFFFAOYSA-N 0.000 description 1
- DZZPJWJPJJNWHM-UHFFFAOYSA-N 2-hydroxy-3-(1-phenylethyl)benzoic acid Chemical compound C=1C=CC(C(O)=O)=C(O)C=1C(C)C1=CC=CC=C1 DZZPJWJPJJNWHM-UHFFFAOYSA-N 0.000 description 1
- WJQOZHYUIDYNHM-UHFFFAOYSA-N 2-tert-Butylphenol Chemical compound CC(C)(C)C1=CC=CC=C1O WJQOZHYUIDYNHM-UHFFFAOYSA-N 0.000 description 1
- HXIQYSLFEXIOAV-UHFFFAOYSA-N 2-tert-butyl-4-(5-tert-butyl-4-hydroxy-2-methylphenyl)sulfanyl-5-methylphenol Chemical compound CC1=CC(O)=C(C(C)(C)C)C=C1SC1=CC(C(C)(C)C)=C(O)C=C1C HXIQYSLFEXIOAV-UHFFFAOYSA-N 0.000 description 1
- AGIJRRREJXSQJR-UHFFFAOYSA-N 2h-thiazine Chemical compound N1SC=CC=C1 AGIJRRREJXSQJR-UHFFFAOYSA-N 0.000 description 1
- GRIKUIPJBHJPPN-UHFFFAOYSA-N 3',6'-dimethoxyspiro[2-benzofuran-3,9'-xanthene]-1-one Chemical compound O1C(=O)C2=CC=CC=C2C21C1=CC=C(OC)C=C1OC1=CC(OC)=CC=C21 GRIKUIPJBHJPPN-UHFFFAOYSA-N 0.000 description 1
- ABJAMKKUHBSXDS-UHFFFAOYSA-N 3,3-bis(6-amino-1,4-dimethylcyclohexa-2,4-dien-1-yl)-2-benzofuran-1-one Chemical compound C1=CC(C)=CC(N)C1(C)C1(C2(C)C(C=C(C)C=C2)N)C2=CC=CC=C2C(=O)O1 ABJAMKKUHBSXDS-UHFFFAOYSA-N 0.000 description 1
- ZWQBZEFLFSFEOS-UHFFFAOYSA-N 3,5-ditert-butyl-2-hydroxybenzoic acid Chemical compound CC(C)(C)C1=CC(C(O)=O)=C(O)C(C(C)(C)C)=C1 ZWQBZEFLFSFEOS-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
- MQJTWPAGXWPEKU-UHFFFAOYSA-N 3-[4-(dimethylamino)phenyl]-3-(1,2-dimethylindol-3-yl)-2-benzofuran-1-one Chemical compound C1=CC(N(C)C)=CC=C1C1(C=2C3=CC=CC=C3N(C)C=2C)C2=CC=CC=C2C(=O)O1 MQJTWPAGXWPEKU-UHFFFAOYSA-N 0.000 description 1
- ZKUWHPNJONEJEE-UHFFFAOYSA-N 3-[4-(dimethylamino)phenyl]-3-(2-methyl-1h-indol-3-yl)-2-benzofuran-1-one Chemical compound C1=CC(N(C)C)=CC=C1C1(C=2C3=CC=CC=C3NC=2C)C2=CC=CC=C2C(=O)O1 ZKUWHPNJONEJEE-UHFFFAOYSA-N 0.000 description 1
- YUVVASYGZFERRP-UHFFFAOYSA-N 3-benzyl-2-hydroxybenzoic acid Chemical compound OC(=O)C1=CC=CC(CC=2C=CC=CC=2)=C1O YUVVASYGZFERRP-UHFFFAOYSA-N 0.000 description 1
- RWVOCFCXPXXMMJ-UHFFFAOYSA-N 3-butan-2-yl-4-hydroxybenzoic acid Chemical compound CCC(C)C1=CC(C(O)=O)=CC=C1O RWVOCFCXPXXMMJ-UHFFFAOYSA-N 0.000 description 1
- JCGRUCSGOUFSCY-UHFFFAOYSA-N 3-chloro-2-hydroxy-5-(1-phenylethyl)benzoic acid Chemical compound C=1C(Cl)=C(O)C(C(O)=O)=CC=1C(C)C1=CC=CC=C1 JCGRUCSGOUFSCY-UHFFFAOYSA-N 0.000 description 1
- HINSTNAJIHVPOM-UHFFFAOYSA-N 3-cyclohexyl-4-hydroxybenzoic acid Chemical compound OC(=O)C1=CC=C(O)C(C2CCCCC2)=C1 HINSTNAJIHVPOM-UHFFFAOYSA-N 0.000 description 1
- ZAAMQANODYDRDF-UHFFFAOYSA-N 3-tert-butyl-2-hydroxybenzoic acid Chemical compound CC(C)(C)C1=CC=CC(C(O)=O)=C1O ZAAMQANODYDRDF-UHFFFAOYSA-N 0.000 description 1
- TXFPEBPIARQUIG-UHFFFAOYSA-N 4'-hydroxyacetophenone Chemical compound CC(=O)C1=CC=C(O)C=C1 TXFPEBPIARQUIG-UHFFFAOYSA-N 0.000 description 1
- VPWNQTHUCYMVMZ-UHFFFAOYSA-N 4,4'-sulfonyldiphenol Chemical compound C1=CC(O)=CC=C1S(=O)(=O)C1=CC=C(O)C=C1 VPWNQTHUCYMVMZ-UHFFFAOYSA-N 0.000 description 1
- VWGKEVWFBOUAND-UHFFFAOYSA-N 4,4'-thiodiphenol Chemical compound C1=CC(O)=CC=C1SC1=CC=C(O)C=C1 VWGKEVWFBOUAND-UHFFFAOYSA-N 0.000 description 1
- KFMASHHCLJTUDI-UHFFFAOYSA-N 4-[2-[2,2-bis[4-(dimethylamino)phenyl]-1-phenylethoxy]-1-[4-(dimethylamino)phenyl]-2-phenylethyl]-n,n-dimethylaniline Chemical compound C1=CC(N(C)C)=CC=C1C(C=1C=CC(=CC=1)N(C)C)C(C=1C=CC=CC=1)OC(C=1C=CC=CC=1)C(C=1C=CC(=CC=1)N(C)C)C1=CC=C(N(C)C)C=C1 KFMASHHCLJTUDI-UHFFFAOYSA-N 0.000 description 1
- QHPQWRBYOIRBIT-UHFFFAOYSA-N 4-tert-butylphenol Chemical compound CC(C)(C)C1=CC=C(O)C=C1 QHPQWRBYOIRBIT-UHFFFAOYSA-N 0.000 description 1
- RNRINRUTVAFUCG-UHFFFAOYSA-N 5-(dimethylamino)-3,3-bis(1,2-dimethylindol-3-yl)-2-benzofuran-1-one Chemical compound C1=CC=C2C(C3(C=4C5=CC=CC=C5N(C)C=4C)OC(=O)C4=CC=C(C=C43)N(C)C)=C(C)N(C)C2=C1 RNRINRUTVAFUCG-UHFFFAOYSA-N 0.000 description 1
- FEIQOMCWGDNMHM-UHFFFAOYSA-N 5-phenylpenta-2,4-dienoic acid Chemical compound OC(=O)C=CC=CC1=CC=CC=C1 FEIQOMCWGDNMHM-UHFFFAOYSA-N 0.000 description 1
- WYWMJBFBHMNECA-UHFFFAOYSA-N 6-(dimethylamino)-3,3-bis(1,2-dimethylindol-3-yl)-2-benzofuran-1-one Chemical compound C1=CC=C2C(C3(C=4C5=CC=CC=C5N(C)C=4C)OC(=O)C=4C3=CC=C(C=4)N(C)C)=C(C)N(C)C2=C1 WYWMJBFBHMNECA-UHFFFAOYSA-N 0.000 description 1
- 229920001342 Bakelite® Polymers 0.000 description 1
- 239000005711 Benzoic acid Substances 0.000 description 1
- MOZDKDIOPSPTBH-UHFFFAOYSA-N Benzyl parahydroxybenzoate Chemical compound C1=CC(O)=CC=C1C(=O)OCC1=CC=CC=C1 MOZDKDIOPSPTBH-UHFFFAOYSA-N 0.000 description 1
- HTVITOHKHWFJKO-UHFFFAOYSA-N Bisphenol B Chemical compound C=1C=C(O)C=CC=1C(C)(CC)C1=CC=C(O)C=C1 HTVITOHKHWFJKO-UHFFFAOYSA-N 0.000 description 1
- SDDLEVPIDBLVHC-UHFFFAOYSA-N Bisphenol Z Chemical compound C1=CC(O)=CC=C1C1(C=2C=CC(O)=CC=2)CCCCC1 SDDLEVPIDBLVHC-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- IPAJDLMMTVZVPP-UHFFFAOYSA-N Crystal violet lactone Chemical compound C1=CC(N(C)C)=CC=C1C1(C=2C=CC(=CC=2)N(C)C)C2=CC=C(N(C)C)C=C2C(=O)O1 IPAJDLMMTVZVPP-UHFFFAOYSA-N 0.000 description 1
- MDNWOSOZYLHTCG-UHFFFAOYSA-N Dichlorophen Chemical compound OC1=CC=C(Cl)C=C1CC1=CC(Cl)=CC=C1O MDNWOSOZYLHTCG-UHFFFAOYSA-N 0.000 description 1
- 229920003261 Durez Polymers 0.000 description 1
- 108010010803 Gelatin Proteins 0.000 description 1
- 229920000084 Gum arabic Polymers 0.000 description 1
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 125000003047 N-acetyl group Chemical group 0.000 description 1
- 241000978776 Senegalia senegal Species 0.000 description 1
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical class [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 1
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 229920000147 Styrene maleic anhydride Polymers 0.000 description 1
- 239000002174 Styrene-butadiene Substances 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- ZKURGBYDCVNWKH-UHFFFAOYSA-N [3,7-bis(dimethylamino)phenothiazin-10-yl]-phenylmethanone Chemical compound C12=CC=C(N(C)C)C=C2SC2=CC(N(C)C)=CC=C2N1C(=O)C1=CC=CC=C1 ZKURGBYDCVNWKH-UHFFFAOYSA-N 0.000 description 1
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 1
- 239000000205 acacia gum Substances 0.000 description 1
- 235000010489 acacia gum Nutrition 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 229960000892 attapulgite Drugs 0.000 description 1
- 239000004637 bakelite Substances 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical class C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 description 1
- 239000012965 benzophenone Chemical class 0.000 description 1
- IMHDGJOMLMDPJN-UHFFFAOYSA-N biphenyl-2,2'-diol Chemical group OC1=CC=CC=C1C1=CC=CC=C1O IMHDGJOMLMDPJN-UHFFFAOYSA-N 0.000 description 1
- FPFZBTUMXCSRLU-UHFFFAOYSA-N bis[(4-methylphenyl)methyl] oxalate Chemical compound C1=CC(C)=CC=C1COC(=O)C(=O)OCC1=CC=C(C)C=C1 FPFZBTUMXCSRLU-UHFFFAOYSA-N 0.000 description 1
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 239000005018 casein Substances 0.000 description 1
- BECPQYXYKAMYBN-UHFFFAOYSA-N casein, tech. Chemical compound NCCCCC(C(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(CC(C)C)N=C(O)C(CCC(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(C(C)O)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(COP(O)(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(N)CC1=CC=CC=C1 BECPQYXYKAMYBN-UHFFFAOYSA-N 0.000 description 1
- 235000021240 caseins Nutrition 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 150000001989 diazonium salts Chemical class 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 235000019329 dioctyl sodium sulphosuccinate Nutrition 0.000 description 1
- CZZYITDELCSZES-UHFFFAOYSA-N diphenylmethane Chemical compound C=1C=CC=CC=1CC1=CC=CC=C1 CZZYITDELCSZES-UHFFFAOYSA-N 0.000 description 1
- YHAIUSTWZPMYGG-UHFFFAOYSA-L disodium;2,2-dioctyl-3-sulfobutanedioate Chemical compound [Na+].[Na+].CCCCCCCCC(C([O-])=O)(C(C([O-])=O)S(O)(=O)=O)CCCCCCCC YHAIUSTWZPMYGG-UHFFFAOYSA-L 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000002612 dispersion medium Substances 0.000 description 1
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000007850 fluorescent dye Substances 0.000 description 1
- 229940074391 gallic acid Drugs 0.000 description 1
- 235000004515 gallic acid Nutrition 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
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 1
- ODNHQUQWHMGWGT-UHFFFAOYSA-N iridium;oxotin Chemical compound [Ir].[Sn]=O ODNHQUQWHMGWGT-UHFFFAOYSA-N 0.000 description 1
- XHQSLVIGPHXVAK-UHFFFAOYSA-K iron(3+);octadecanoate Chemical compound [Fe+3].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XHQSLVIGPHXVAK-UHFFFAOYSA-K 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 235000010981 methylcellulose Nutrition 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- VYQNWZOUAUKGHI-UHFFFAOYSA-N monobenzone Chemical class C1=CC(O)=CC=C1OCC1=CC=CC=C1 VYQNWZOUAUKGHI-UHFFFAOYSA-N 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229920003986 novolac Polymers 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 229910052625 palygorskite Inorganic materials 0.000 description 1
- 125000002080 perylenyl group Chemical group C1(=CC=C2C=CC=C3C4=CC=CC5=CC=CC(C1=C23)=C45)* 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 description 1
- 235000019333 sodium laurylsulphate Nutrition 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000011115 styrene butadiene Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 150000003852 triazoles Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/30—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using chemical colour formers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/40—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography
- B41M5/42—Intermediate, backcoat, or covering layers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
Definitions
- the present invention relates to a recording material comprising a substrate and a coating comprising at least 3 layers, wherein the outermost layer contains nanoparticles and the inner layers together contain at least one color former, at least one color developer, at least one absorber and at least one solubilizer and color former and color developer not in same location are included.
- the invention further relates to a method for producing the recording material according to the invention and to a laser marking method in which the recording material according to the invention is irradiated with a laser.
- Heat-sensitive recording materials are known in which a color former and a color developer are present side by side in a coating, which are intended to contact each other in the heat, whereby they undergo a color forming reaction and produce color images.
- a recording head for contacting the recording layer of the heat-sensitive material
- a recording head thermal head
- problems such as. For example, wear of the head, adhesion of dust or other particles to the tip of the head, and sticking of the head to the recording layer.
- the method is not suitable for high-speed recording because the recording speed depends on the duration of heat release by the thermal head, and the resolution of the color images is limited due to the heat diffusion. Therefore, instead of the contact method using a thermal head, various non-contact recording methods have been proposed wherein a laser or similar light beam is used for recording.
- IR laser radiation is also after the lesson of EP 0 637 514 A1 used, wherein the coloring coating is additionally added an inorganic substance which is to improve the absorption of the infrared radiation (so-called absorber).
- the recording materials used in the described labeling method have the disadvantage that they are very sensitive to unwanted color reactions. Often, even the finger sweat on touching the recording materials leads to unwanted color reactions. Also, the recording materials are not storage stable.
- the object of the present invention was therefore to provide a recording material in which the disadvantages of the prior art, in particular the already mentioned sensitivity to unwanted color reactions and the lack of storage stability, are overcome.
- the present invention thus provides a recording material comprising a substrate and a coating comprising at least 3 layers, wherein the outermost layer contains nanoparticles and the inner layers together contain at least one color former, at least one color developer, at least one absorber and at least one solubilizer and color formers and color developers are not contained in the same layer, and a method for producing this recording material.
- the subject of the present invention is a laser marking method in which the recording material according to the invention is irradiated with a laser.
- the object of the present invention has, inter alia, the feature that the coloring coating contains at least one substance which absorbs radiation of a specific wavelength and converts it into heat energy (so-called absorber).
- This thermal energy initiates a chemical reaction between a color former and a color developer in the colorant coating of the recording material, which then results in a color reaction.
- an energy absorber in a defined wavelength range (e.g., 800 nm to 2,000 nm)
- other than the commonly used infrared lasers may be used, such as fiber lasers, Nd: YAG lasers, or diode lasers.
- the absorber absorbs electromagnetic radiation in a wavelength range of 800 nm to 2,000 nm.
- An absorbing substance can be any inorganic or organic compound which has an absorption, preferably more than 60 percent of the energy radiated, in the desired wavelength range.
- suitable absorbent substances are the following: mica coated with antimony-doped tin oxide ("Lazerflair”, Merck), copper hydroxyphosphate ("Budit 322", Budenheim), iridium tin oxide ("Adnano ITO", Evonik-Degussa ), phlegmatized aluminum powder (“MaG-6-10", Eckart), perylene derivatives ("Lumogen", BASF), phthalocyanines ("PRO-JET”, Fujifilm).
- combinations of one or more absorbers with one or more solubilizers are possible, which are in the form of a microencapsulated system.
- the use of the absorbing substance may be carried out in any desired amount, but preferably, the absorber is contained therein at 0.1 to 10 parts based on the entire coloring composition.
- the color image systems useful in the present invention are not critical, provided that the present at least one color former and at least one color developer are present in such a combination that they are brought into contact with each other under the action of heat to undergo a color forming reaction.
- Examples of usable combinations are the combination of a colorless or pale-colored basic color former and an inorganic or organic acid color developer and the combination of ferric stearate or a similar metal salt of a higher fatty acid and gallic acid or a similar phenolic compound, but not limited thereto be.
- the present invention can also be applied to various thermosensitive recording materials in which a diazonium compound, a coupler and a basic color developer are used in combination to thermally give color images (recordings).
- the absorbent substance used in the invention When the absorbent substance used in the invention is e.g. is used in a combination of a basic color former and an acidic color developer, among other combinations, this substance exhibits an extremely high efficiency in improving the recording sensitivity.
- the use of the above-mentioned combination of a basic color former and an acidic color developer is therefore particularly preferred.
- Dyes based on diphenylmethane eg. B. 4,4'-Bisdimethylaminobenzhydryl-benzyl ether, N-halophenyl-leucoauramine, N-2,4,5-trichlorophenyl-leucoauramine.
- Dyes based on spiro compounds eg. 3-methyl-spiro-dinaphthopyran, 3-ethyl-spiro-dinaphthopyran, 3-phenyl-spiro-dinaphthopyran, 3-benzyl-spiro-dinaphthopyran, 3-methyl-naphtho (6'-methoxybenzo) spiro-pyran, 3-propyl-spiro-dibenzopyran.
- Dyes based on lactams eg. Rhodamine B-anilino-lactam, rhodamine (p-nitroanilino) lactam, rhodamine (o-chloroanilino) lactam.
- Fluoran-based dyes e.g. B. 3,6-dimethoxyfluoran, 3,6-diethoxyfluoran, 3,6-dibutoxyfluoran, 3-dimethylamino-7-methoxyfluoran, 3-diethylamino-6-methoxyfluoran, 3-diethylamino-7-methoxyfluoran, 3-diethylamino-7- chlorofluoran, 3-diethylamino-6-methyl-7-chlorofluoran, 3-diethylamino-6,7-dimethylfluoran, 3- (N-ethyl-p-toluidino) -7-methylfluoran, 3-diethylamino-7- (N-acetyl 3-diethylamino-7-dibenzylaminofluoran, 3-diethylamino-5-methyl-7-dibenzylaminofluoran, 3-diethylamino-7- (N-methyl-N- benzylamino) fluor
- inorganic or organic acidic materials which undergo a color-forming reaction on contact with basic dyes are the inorganic acidic materials such as active alumina, acid clay, attapulgite, Bentonite, colloidal silica and aluminum silicate and organic acidic materials such as phenol compounds, for example, 4-tert-butylphenol, 4-tert-octophenol, 4-phenylphenol, 4-acetylphenol, ⁇ -naphthol, ⁇ -naphthol, hydroquinone, 2,2'-dihydroxydiphenyl , 2,2'-methylenebis (4-methyl-6-tert-butylphenol), 2,2'-methylenebis (4-chlorophenol), 4,4'-dihydroxydiphenylmethane, 4,4-isopropylidenediphenol, 4, 4-isopropylidenebis (2-tert-butyl-phenol), 4,4'-sec-butylidenediphenol, 4,4'-cyclohexylidene-diphenol
- the proportions of the color former and the color developer used to prepare the inventive recording material, which are introduced into the color-providing coating, are not critical.
- a combination of a colorless or pale-colored basic color former and an inorganic or organic acid color developer is used, 5 to 20 parts, preferably 10 to 15 parts of the color developer and 5 to 15 parts, preferably 10 parts of the color former may be used based on the whole coloring composition can be used.
- the same conditions apply to all other possible combinations.
- these materials are formulated into a coloring coating composition using water as a dispersion medium and a stirrer or pulverizer such as a ball mill, attritor, or sand mill by dispersing the two materials separately.
- the specific absorbent substance can be dispersed together with the at least one color former and / or the at least one color developer or added to the resulting dispersions.
- nanoparticles to be used according to the invention are nanoparticles of colloidal silica, China clay, stannic oxide, precipitated barium sulfate, precipitated calcium carbonate, aluminum oxide, titanium dioxide (rutile and anatase) and zinc oxide.
- the nanoparticles to be used according to the invention preferably have an average particle diameter of from 10 nm to 300 nm, particularly preferably from 20 nm to 100 nm, very particularly preferably from 30 nm to 70 nm.
- the coloring coating according to the invention contains a solubilizer, which melts by the heat energy emitted by the absorber and then dissolves both color formers and color developers, which thereby come into contact with each other and can react in color.
- solubilizers are: p-benzylbiphenyl (PBBP), 2-benzyloxynaphthalene (BON), di (p-methylbenzyl) oxalate, diisopropylnaphthalene. It is also possible that the solubilizers are present as a microencapsulated system.
- the coloring coating contains a binder such as starches, hydroxyethyl cellulose, methyl cellulose, carboxymethyl cellulose, gelatin, casein, gum arabic, polyvinyl alcohol, styrene-maleic anhydride copolymer salts, styrene-acrylic acid mixed polymer salts, styrene-butadiene mixed polymer emulsions or the like.
- the binder is suitably used in amounts of from 5 to about 25 parts, preferably from about 10 to 20 parts based on the total composition.
- the coloring coating also contains a pigment such as calcium carbonate, china clay, calcined clay, aluminum hydroxide, barium sulfate, titanium dioxide.
- the coloring coating can be mixed with the most diverse aids.
- useful auxiliaries are dispersing agents such as sodium dioctylsulfosuccinate, sodium dodecylbenzenesulfonate, sodium laurylsulfate and metal salts of fatty acids; Benzophenone, triazole type or similar types of UV absorbers, antifoams, fluorescent dyes, colorants and the like, but not limited thereto.
- the substrate is selected from the group consisting of fibrous materials, plastics and metals.
- the substrate is paper or cardboard.
- the substrate has a basis weight of 40 to 400 g / m 2 .
- Another object of the present invention is a process for the preparation of the recording material according to the invention, wherein a coating comprising at least 3 layers, wherein the outermost layer contains nanoparticles and the inner layers together at least one color former, at least one color developer, at least one absorber and at least one solubilizer and color former and color developer are not contained in the same layer is applied at least on a part of the substrate.
- the coating weight of the coating on the substrate is between 1 and 60 g / m 2 .
- the coating weight of the coating on the substrate is between 3 and 20 g / m 2 .
- Another object of the present invention is also a laser marking method in which the coloring coating of the recording material according to the invention, is irradiated with a laser.
- a fiber laser, Nd: YAG laser or a diode laser is used to irradiate the coloring coating. But it is also possible to irradiate with a CO 2 laser.
- binder Mowiol 20/98 20 to 50 parts of binder Mowiol 20/98, Kuraray 50 to 80 parts china clay M 07-1061, BASF Application weight 1.0 to 6.0 g / m 2
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Heat Sensitive Colour Forming Recording (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft ein Aufzeichnungsmaterial umfassend ein Substrat und eine Beschichtung umfassend mindestens 3 Lagen, wobei die äußerste Lage Nanopartikel enthält und die inneren Lagen zusammen mindestens einen Farbbildner, mindestens einen Farbentwickler, mindestens einen Absorber und mindestens einen Lösevermittler enthalten und Farbbildner und Farbentwickler nicht in derselben Lage enthalten sind.The present invention relates to a recording material comprising a substrate and a coating comprising at least 3 layers, wherein the outermost layer contains nanoparticles and the inner layers together contain at least one color former, at least one color developer, at least one absorber and at least one solubilizer and color former and color developer not in same location are included.
Die Erfindung betrifft weiterhin ein Verfahren zur Herstellung des erfindungsgemäßen Aufzeichnungsmaterials sowie ein Lasermarkierungsverfahren, bei welchem das erfindungsgemäße Aufzeichnungsmaterial mit einem Laser bestrahlt wird.The invention further relates to a method for producing the recording material according to the invention and to a laser marking method in which the recording material according to the invention is irradiated with a laser.
Wärmeempfindliche Aufzeichnungsmaterialien sind bekannt, bei denen in einer Beschichtung ein Farbbildner und ein Farbentwickler nebeneinander vorliegen, die dazu bestimmt sind, in der Wärme miteinander in Kontakt zu kommen, wobei sie einer Farbbildungsreaktion unterliegen und Farbbilder produzieren.Heat-sensitive recording materials are known in which a color former and a color developer are present side by side in a coating, which are intended to contact each other in the heat, whereby they undergo a color forming reaction and produce color images.
Zum Aufzeichnen wird im Allgemeinen ein Aufzeichnungskopf (Thermokopf) zum Berühren der Aufzeichnungsschicht des wärmeempfindlichen Materials verwendet. Bei diesem Verfahren können jedoch Probleme auftreten, wie z. B. Abnutzung des Kopfes, das Haften von Staub oder anderen Teilchen an der Spitze des Kopfes und Kleben des Kopfes an der Aufzeichnungsschicht. Darüber hinaus ist das Verfahren nicht für Aufzeichnungen mit hoher Geschwindigkeit geeignet, weil die Aufzeichnungsgeschwindigkeit von der Dauer der Wärmeabgabe durch den Thermokopf abhängig ist, und das Auflösungsvermögen der Farbbilder ist aufgrund der Wärmediffusion beschränkt. Anstelle der Kontaktmethode unter Verwendung eines Thermokopfes sind daher verschiedene Aufzeichnungsverfahren ohne Kontakt vorgeschlagen worden, wobei ein Laser oder ähnlicher Lichtstrahl zum Aufzeichnen benutzt wird.For recording, a recording head (thermal head) for contacting the recording layer of the heat-sensitive material is generally used. In this method, however, problems such as. For example, wear of the head, adhesion of dust or other particles to the tip of the head, and sticking of the head to the recording layer. Moreover, the method is not suitable for high-speed recording because the recording speed depends on the duration of heat release by the thermal head, and the resolution of the color images is limited due to the heat diffusion. Therefore, instead of the contact method using a thermal head, various non-contact recording methods have been proposed wherein a laser or similar light beam is used for recording.
So beschreibt beispielsweise
Die in den beschriebenen Markierungsverfahren verwendeten Aufzeichnungsmaterialien weisen jedoch den Nachteil auf, daß sie sehr empfindlich gegenüber ungewollten Farbreaktionen sind. Oft führt allein schon der Fingerschweiß beim Berühren der Aufzeichnungsmaterialien zu ungewollten Farbreaktionen. Auch sind die Aufzeichnungsmaterialien nicht lagerstabil.However, the recording materials used in the described labeling method have the disadvantage that they are very sensitive to unwanted color reactions. Often, even the finger sweat on touching the recording materials leads to unwanted color reactions. Also, the recording materials are not storage stable.
Aufgabe der vorliegenden Erfindung war es daher, ein Aufzeichnungsmaterial bereitzustellen, bei welchem die Nachteile des Standes der Technik, insbesondere die bereits angesprochene Empfindlichkeit gegenüber ungewollten Farbreaktionen und die mangelnde Lagerstabilität, überwunden werden.The object of the present invention was therefore to provide a recording material in which the disadvantages of the prior art, in particular the already mentioned sensitivity to unwanted color reactions and the lack of storage stability, are overcome.
Überraschenderweise wurde nun gefunden, dass die genannten Nachteile des Standes der Technik dadurch überwunden werden, daß in der farbgebenden Beschichtung Farbbildner und Farbentwickler in separaten Schichten, also räumlich voneinander getrennt werden, und die farbgebende Beschichtung zusätzlich mit einer Nanopartikel enthaltenden überziehenden Schutzschicht versehen wird.Surprisingly, it has now been found that the stated disadvantages of the prior art are overcome by the fact that in the color-providing coating color former and color developer in separate layers, ie spatially separated from each other, and the coloring coating is additionally provided with a protective coating containing nanoparticles.
Gegenstand der vorliegenden Erfindung ist somit ein Aufzeichnungsmaterial umfassend ein Substrat und eine Beschichtung umfassend mindestens 3 Lagen, wobei die äußerste Lage Nanopartikel enthält und die inneren Lagen zusammen mindestens einen Farbbildner, mindestens einen Farbentwickler, mindestens einen Absorber und mindestens einen Lösevermittler enthalten und Farbbildner und Farbentwickler nicht in derselben Lage enthalten sind, sowie ein Verfahren zur Herstellung dieses Aufzeichnungsmaterials. Weiterhin ist Gegenstand der vorliegenden Erfindung ein Lasermarkierungsverfahren, bei welchem das erfindungsgemäße Aufzeichnungsmaterial mit einem Laser bestrahlt wird.The present invention thus provides a recording material comprising a substrate and a coating comprising at least 3 layers, wherein the outermost layer contains nanoparticles and the inner layers together contain at least one color former, at least one color developer, at least one absorber and at least one solubilizer and color formers and color developers are not contained in the same layer, and a method for producing this recording material. Furthermore, the subject of the present invention is a laser marking method in which the recording material according to the invention is irradiated with a laser.
Wie bereits ausgeführt, weist der Gegenstand der vorliegenden Erfindung unter anderem das Merkmal auf, dass die farbgebende Beschichtung mindestens eine Substanz enthält, die Strahlung einer bestimmten Wellenlänge absorbiert und in Wärmeenergie umwandelt (sog. Absorber). Diese Wärmeenergie initiiert eine chemische Reaktion zwischen einem Farbbildner und einem Farbentwickler in der farbgebenden Beschichtung des Aufzeichnungsmaterials, welche dann zu einer Farbreaktion führt. Durch Verwendung eines Energieabsorbers in einem definierten Wellenlängenbereich (z.B. 800 nm bis 2.000 nm) können auch andere als die üblicherweise verwendeten Infrarotlaser eingesetzt werden, beispielsweise Faserlaser, Nd:YAG-Laser oder Diodenlaser.As already stated, the object of the present invention has, inter alia, the feature that the coloring coating contains at least one substance which absorbs radiation of a specific wavelength and converts it into heat energy (so-called absorber). This thermal energy initiates a chemical reaction between a color former and a color developer in the colorant coating of the recording material, which then results in a color reaction. By using an energy absorber in a defined wavelength range (e.g., 800 nm to 2,000 nm), other than the commonly used infrared lasers may be used, such as fiber lasers, Nd: YAG lasers, or diode lasers.
In einer bevorzugten Ausführungsform absorbiert der Absorber elektromagnetische Strahlung in einem Wellenlängenbereich von 800 nm bis 2.000 nm. Eine absorbierende Substanz kann jede anorganisch oder organische Verbindung sein, welche eine Absorption, vorzugsweise von über 60 Prozent der eingestrahlten Energie, in dem gewünschten Wellenlängenbereich aufweist. Beispiele geeigneter absorbierender Substanzen sind die folgenden: Glimmer, beschichtet mit antimondotiertem Zinnoxid ("Lazerflair", Fa. Merck), Kupferhydroxyphosphat ("Budit 322", Fa. Budenheim), Iridium Zinn Oxide ("Adnano ITO", Fa. Evonik - Degussa), phlegmatisiertes Aluminiumpulver ("MaG-6-10", Fa. Eckart), Perylenderivate ("Lumogen", Fa. BASF), Phthalocyanine ("PRO-JET", Fa. Fujifilm). Darüber hinaus sind aber auch Kombinationen von einem oder mehreren Absorbern mit einem oder mehreren Lösevermittlern möglich, die in Form eines mikroverkapselten Systems vorliegen.In a preferred embodiment, the absorber absorbs electromagnetic radiation in a wavelength range of 800 nm to 2,000 nm. An absorbing substance can be any inorganic or organic compound which has an absorption, preferably more than 60 percent of the energy radiated, in the desired wavelength range. Examples of suitable absorbent substances are the following: mica coated with antimony-doped tin oxide ("Lazerflair", Merck), copper hydroxyphosphate ("Budit 322", Budenheim), iridium tin oxide ("Adnano ITO", Evonik-Degussa ), phlegmatized aluminum powder ("MaG-6-10", Eckart), perylene derivatives ("Lumogen", BASF), phthalocyanines ("PRO-JET", Fujifilm). In addition, however, combinations of one or more absorbers with one or more solubilizers are possible, which are in the form of a microencapsulated system.
Die Verwendung der absorbierenden Substanz kann in jeder gewünschten Menge erfolgen, vorzugsweise ist der Absorber jedoch zu 0,1 bis 10 Teilen bezogen auf die gesamte farbgebende Zusammensetzung in derselben enthalten.The use of the absorbing substance may be carried out in any desired amount, but preferably, the absorber is contained therein at 0.1 to 10 parts based on the entire coloring composition.
Die erfindungsgemäß verwendbaren Farbbildungssysteme sind nicht entscheidend, sofern der anwesende mindestens einen Farbbildner und mindestens einen Farbentwickler in einer solchen Kombination vorliegen, dass sie unter der Einwirkung von Wärme miteinander in Kontakt gebracht, eine Farbbildungsreaktion eingehen.The color image systems useful in the present invention are not critical, provided that the present at least one color former and at least one color developer are present in such a combination that they are brought into contact with each other under the action of heat to undergo a color forming reaction.
Beispiele von verwendbaren Kombinationen sind die Kombination aus einem farblosen oder schwach gefärbten basischen Farbbildner und einem anorganischen oder organischen sauren Farbentwickler und die Kombination aus Eisen(III)-stearat oder einem ähnlichen Metallsalz einer höheren Fettsäure und Gallussäure oder einer ähnlichen Phenolverbindung, ohne hierauf beschränkt zu sein. Die vorliegende Erfindung kann auch auf die verschiedensten wärmeempfindlichen Aufzeichnungsmaterialien angewendet werden, in denen eine Diazoniumverbindung, ein Kuppler und ein basischer Farbentwickler in Kombination verwendet werden, um auf thermischem Wege farbige Bilder (Aufzeichnungen) zu ergeben.Examples of usable combinations are the combination of a colorless or pale-colored basic color former and an inorganic or organic acid color developer and the combination of ferric stearate or a similar metal salt of a higher fatty acid and gallic acid or a similar phenolic compound, but not limited thereto be. The present invention can also be applied to various thermosensitive recording materials in which a diazonium compound, a coupler and a basic color developer are used in combination to thermally give color images (recordings).
Wenn die erfindungsgemäß verwendete absorbierende Substanz z.B. in einer Kombination eines basischen Farbbildners und eines sauren Farbentwicklers neben anderen Kombinationen eingesetzt wird, zeigt diese Substanz eine außerordentlich starke Wirksamkeit hinsichtlich der Verbesserung der Aufzeichnungsempfindlichkeit. Die Verwendung der oben genannten Kombination eines basischen Farbbildners und eines sauren Farbentwicklers wird deshalb besonders bevorzugt.When the absorbent substance used in the invention is e.g. is used in a combination of a basic color former and an acidic color developer, among other combinations, this substance exhibits an extremely high efficiency in improving the recording sensitivity. The use of the above-mentioned combination of a basic color former and an acidic color developer is therefore particularly preferred.
Zu Beispielen verwendbarer, farbloser oder schwach-gefärbter basischer Farbstoffe, welche bereits bekannt sind, zählen:Examples of useful, colorless or pale-colored basic dyes which are already known include:
Farbstoffe auf der Basis von Triarylmethan, z. B. 3,3-Bis(p-dimethylaminophenyl)-6-dimethylaminophthalid, 3,3-Bis(p-dimethylaminophenyl)phthalid, 3-(p-Dimethylaminophenyl)-3-(1,2-dimethylindol-3-yl)phthalid, 3-(p-Dimethylaminophenyl)-3-(2-methylindol-3-yl)phthalid, 3,3-Bis(1,2-dimethylindol-3-yl)-5-dimethylaminophthalid, 3,3-Bis(1,2-dimethylindol-3-yl)-6-dimethylaminophthalid, 3,3-Bis(9-phenylindol-3-yl)-6-dimethylaminophthalid, 3-p-Dimethylaminophenyl-3-(1-methypyrrol-3-yl)-6-dimethylaminophthalid.Dyes based on triarylmethane, z. B. 3,3-bis (p-dimethylaminophenyl) -6-dimethylaminophthalide, 3,3-bis (p-dimethylaminophenyl) phthalide, 3- (p-dimethylaminophenyl) -3- (1,2-dimethylindol-3-yl) phthalide, 3- (p-dimethylaminophenyl) -3- (2-methylindol-3-yl) phthalide, 3,3-bis (1,2-dimethylindol-3-yl) -5-dimethylaminophthalide, 3,3-bis ( 1,2-dimethylindol-3-yl) -6-dimethylaminophthalide, 3,3-bis (9-phenylindol-3-yl) -6-dimethylaminophthalide, 3-p-dimethylaminophenyl-3- (1-methypyrrol-3-yl ) -6-dimethylaminophthalide.
Farbstoffe auf der Basis von Diphenylmethan, z. B. 4,4'-Bisdimethylaminobenzhydryl-benzyl-ether, N-Halogenphenyl-leucoauramin, N-2,4,5-Trichlorphenyl-leucoauramin.Dyes based on diphenylmethane, eg. B. 4,4'-Bisdimethylaminobenzhydryl-benzyl ether, N-halophenyl-leucoauramine, N-2,4,5-trichlorophenyl-leucoauramine.
Farbstoffe auf der Basis von Thiazin, z. B. Benzoyl-leucomethylenblau, p-Nitrobenzoyl-leucomethylenblau.Dyes based on thiazine, z. B. benzoyl-leucomethylene blue, p-nitrobenzoyl leucomethylene blue.
Farbstoffe auf der Basis von Spiro-Verbindungen, z. B. 3-Methyl-spiro-dinaphthopyran, 3-Ethyl-spiro-dinaphthopyran, 3-Phenyl-spiro-dinaphthopyran, 3-Benzyl-spiro-dinaphthopyran, 3-Methyl-naphtho-(6'-methoxybenzo)spiro-pyran, 3-Propyl-spiro-dibenzopyran.Dyes based on spiro compounds, eg. 3-methyl-spiro-dinaphthopyran, 3-ethyl-spiro-dinaphthopyran, 3-phenyl-spiro-dinaphthopyran, 3-benzyl-spiro-dinaphthopyran, 3-methyl-naphtho (6'-methoxybenzo) spiro-pyran, 3-propyl-spiro-dibenzopyran.
Farbstoffe auf der Basis von Lactamen, z. B. Rhodamin-B-anilino-lactam, Rhodamin-(p-nitroanilino)lactam, Rhodamin-(o-chloranilino)lactam.Dyes based on lactams, eg. Rhodamine B-anilino-lactam, rhodamine (p-nitroanilino) lactam, rhodamine (o-chloroanilino) lactam.
Farbstoffe auf der Basis von Fluoran, z. B. 3,6-Dimethoxyfluoran, 3,6-Diethoxyfluoran, 3,6-Dibutoxyfluoran, 3-Dimethylamino-7-methoxyfluoran, 3-Diethylamino-6-methoxyfluoran, 3-Diethylamino-7-methoxyfluoran, 3-Diethylamino-7-chlorfluoran, 3-Diethylamino-6-methyl-7-chlorfluoran, 3-Diethylamino-6,7-dimethylfluoran, 3-(N-Ethyl-p-toluidino)-7-methylfluoran, 3-Diethylamino-7-(N-acetyl-N-methylamino)fluoran, 3-Diethylamino-7-N-methylaminofluoran, 3-Diethylamino-7-dibenzylaminofluoran, 3-Diethylamino-5-methyl-7-dibenzylaminofluoran, 3-Diethylamino-7-(N-methyl-N-benzylamino)fluoran, 3-Diethylamino-7-(N-chlorethyl-N-methylamino)fluoran, 3-Diethylamino-7-diethylaminofluoran, 3-(N-Ethyl-p-toluidino)-6-methyl-7-phenylaminofluoran, 3-(N-Ethyl-p-toluidino)-6-methyl-7-(p-toluidino)fluoran, 3-Diethylamino-6-methyl-7- phenylaminofluoran, 3-Diethylamino-7-(2-corbomethoxy-phenylamino)fluoran, 3-(N-Ethyl-N-isoamylamino)-6-methyl-7-phenylaminofluoran, 3-(N-Cyclo-hexyl-N-methylamino)-6-methyl-7-phenylaminofluoran, 3-Pyrrolidino-6-methyl-7-methylaminofluoran, 3-Piperidiono-6-methyl-7-phenylaminofluoran, 3-Diethylamino-6-methyl-7-xylidinofluoran, 3-Diethylamino-7-(o-chlorphenylamino)fluoran, 3-Dibutylamino-7-(o-chlorphenylamino)fluoran, 3-Pyrrolidino-6-methyl-7-p-butylphenylaminofluoran.Fluoran-based dyes, e.g. B. 3,6-dimethoxyfluoran, 3,6-diethoxyfluoran, 3,6-dibutoxyfluoran, 3-dimethylamino-7-methoxyfluoran, 3-diethylamino-6-methoxyfluoran, 3-diethylamino-7-methoxyfluoran, 3-diethylamino-7- chlorofluoran, 3-diethylamino-6-methyl-7-chlorofluoran, 3-diethylamino-6,7-dimethylfluoran, 3- (N-ethyl-p-toluidino) -7-methylfluoran, 3-diethylamino-7- (N-acetyl 3-diethylamino-7-dibenzylaminofluoran, 3-diethylamino-5-methyl-7-dibenzylaminofluoran, 3-diethylamino-7- (N-methyl-N- benzylamino) fluoran, 3-diethylamino-7- (N-chloroethyl-N-methylamino) fluoran, 3-diethylamino-7-diethylaminofluoran, 3- (N-ethyl-p-toluidino) -6-methyl-7-phenylaminofluoran, 3 - (N-ethyl-p-toluidino) -6-methyl-7- (p-toluidino) fluoran, 3-diethylamino-6-methyl-7-phenylaminofluoran, 3-diethylamino-7- (2-corombethoxyphenylamino) fluoran , 3- (N-Ethyl-N-isoamylamino) -6-methyl-7-phenylaminofluoran, 3- (N-cyclohexyl-N-methylamino) -6-methyl-7-phenylaminofluoran, 3-pyrrolidino-6-methyl -7-methylam inofluoran, 3-piperidiono-6-methyl-7-phenylaminofluoran, 3-diethylamino-6-methyl-7-xylidinofluoran, 3-diethylamino-7- (o -chlorophenylamino) fluoran, 3-dibutylamino-7- (o-chlorophenylamino) fluoran, 3-pyrrolidino-6-methyl-7-p-butylphenylaminofluoran.
Beispiele von anorganischen oder organischen sauren Materialien, welche beim Kontakt mit basischen Farbstoffen eine farbbildende Reaktion eingehen, sind die anorganischen sauren Materialien wie Aktiv-Tonerde, saure Tonerde, Attapulgit, Bentonit, kolloidales Siliciumdioxid und Aluminiumsilicat und organische saure Materialien wie Phenolverbindungen, beispielsweise 4-tert-Butylphenol, 4-tert-Octophenol, 4-Phenylphenol, 4-Acetylphenol, α-Naphthol, β-Naphthol, Hydrochinon, 2,2'-Dihydroxydiphenyl, 2,2'-Methylenbis-(4-methyl-6-tert-butylphenol), 2,2'-Methylenbis-(4-chlorphenol), 4,4'-Dihydroxy-diphenylmethan, 4,4-Isopropylidendiphenol, 4,4-Isopropylidenbis-(2-tert-butyl-phenol), 4,4'-sec-Butylidendiphenol, 4,4'-Cyclohexyliden-diphenol, 4,4'-Dihydroxydiphenyl-sulfid, 4,4'-Thiobis-(6-tert-butyl-3-methylphenol), 4,4'-Dihydroxydiphenyl-sulfon, 4-Hydroxybenzoesäure-benzylester, 4-Hydroxyphthalsäure-dimethylester, Hydrochinon-monobenzylether, Novolac-phenolharze und Phenolpolymere sowie aromatische Carbonsäureverbindungen wie Benzoesäure, p-ter-Butylbenzoesäure, Trichlorbenzoesäure, 3-sec-Butyl-4-hydroxybenzoesäure, 3-Cyclohexyl-4-hydroxybenzoesäure, 3,5-Dimethyl-4-hydroxybenzoesäure, Salicylsäure, 3-Isopropylsalicylsäure, 3-tert-Butylsalicylsäure, 3-Benzylsalicylsäure, 3-(α-Methylbenzyl)salicylsäure, 3-Chlor-5-(α-methylbenzyl)salicylsäure, 3,5-Di-tert-butylsalicylsäure, 3-Phenyl-5-(α-α-dimethylbenzyl)salicylsäure, 3,5,-Di-(α-methylbenzyl)salicylsäure und Terephthalsäure. Es sind aber auch Salze von derartigen Phenolverbindungen und aromatischen Carbonsäuren mit mehrwertigen Metallen wie Zink, Magnesium, Aluminium, Calcium, Titan, Mangan, Zinn und Nickel erfindungsgemäß sehr gut geeignet.Examples of inorganic or organic acidic materials which undergo a color-forming reaction on contact with basic dyes are the inorganic acidic materials such as active alumina, acid clay, attapulgite, Bentonite, colloidal silica and aluminum silicate and organic acidic materials such as phenol compounds, for example, 4-tert-butylphenol, 4-tert-octophenol, 4-phenylphenol, 4-acetylphenol, α-naphthol, β-naphthol, hydroquinone, 2,2'-dihydroxydiphenyl , 2,2'-methylenebis (4-methyl-6-tert-butylphenol), 2,2'-methylenebis (4-chlorophenol), 4,4'-dihydroxydiphenylmethane, 4,4-isopropylidenediphenol, 4, 4-isopropylidenebis (2-tert-butyl-phenol), 4,4'-sec-butylidenediphenol, 4,4'-cyclohexylidene-diphenol, 4,4'-dihydroxydiphenyl-sulfide, 4,4'-thiobis- (6 tert-butyl-3-methylphenol), 4,4'-dihydroxydiphenylsulfone, benzyl 4-hydroxybenzoate, dimethyl 4-hydroxyphthalate, hydroquinone monobenzyl ethers, novolac phenolic resins and phenolic polymers, and aromatic carboxylic acid compounds such as benzoic acid, p-tert-butyl Butylbenzoic acid, trichlorobenzoic acid, 3-sec-butyl-4-hydroxybenzoic acid, 3-cyclohexyl-4-hydroxybenzoic acid, 3,5-dimethyl-4-hydroxybenzoic acid, salicylic acid, 3-isopropylsalicyl acid, 3-tert-butylsalicylic acid, 3-benzylsalicylic acid, 3- (α-methylbenzyl) salicylic acid, 3-chloro-5- (α-methylbenzyl) salicylic acid, 3,5-di-tert-butylsalicylic acid, 3-phenyl-5- (α-α-dimethylbenzyl) salicylic acid, 3,5-di- (α-methylbenzyl) salicylic acid and terephthalic acid. However, salts of such phenolic compounds and aromatic carboxylic acids with polyvalent metals such as zinc, magnesium, aluminum, calcium, titanium, manganese, tin and nickel are also very suitable according to the invention.
Die zur Herstellung des erfindungsgemäßen Aufzeichnungsmaterials verwendeten Anteile des Farbbildners und des Farbentwicklers, die in die farbgebende Beschichtung eingebracht werden, sind nicht entscheidend. Wenn beispielsweise eine Kombination aus einem farblosen oder schwach gefärbten basischen Farbbildner und einem anorganischen oder organischen sauren Farbentwickler eingesetzt wird, können 5 bis 20 Teile, vorzugsweise 10 bis 15 Teile des Farbentwicklers und 5 bis 15 Teile, vorzugsweise 10 Teile des Farbbildners bezogen auf die gesamte farbgebende Zusammensetzung verwendet werden. Gleiche Verhältnisse gelten auch für alle anderen möglichen Kombinationen.The proportions of the color former and the color developer used to prepare the inventive recording material, which are introduced into the color-providing coating, are not critical. For example, when a combination of a colorless or pale-colored basic color former and an inorganic or organic acid color developer is used, 5 to 20 parts, preferably 10 to 15 parts of the color developer and 5 to 15 parts, preferably 10 parts of the color former may be used based on the whole coloring composition can be used. The same conditions apply to all other possible combinations.
Im Allgemeinen werden diese Materialien zu einer farbgebenden Beschichtungszusammensetzung unter Verwendung von Wasser als Dispersionsmedium und einer Rührvorrichtung oder Pulverisierungsvorrichtung wie einer Kugelmühle, Zerreibungsvorrichtung oder Sandmühle formuliert, indem die beiden Materialien getrennt dispergiert werden.In general, these materials are formulated into a coloring coating composition using water as a dispersion medium and a stirrer or pulverizer such as a ball mill, attritor, or sand mill by dispersing the two materials separately.
Die spezielle absorbierende Substanz (Absorber) kann zusammen mit dem mindestens einen Farbbildner und/oder dem mindestens einen Farbentwickler dispergiert oder zu den erhaltenen Dispersionen zugefügt werden.The specific absorbent substance (absorber) can be dispersed together with the at least one color former and / or the at least one color developer or added to the resulting dispersions.
Beispiele von erfindungsgemäß zu verwendenden Nanopartikeln sind Nanopartikel aus kolloidalem Siliciumdioxid, China Clay, Zinn-IV-oxid, gefälltes Bariumsulfat, gefälltes Calciumcarbonat, Aluminiumoxid, Titandioxid (Rutil und Anatas) und Zinkoxid.Examples of nanoparticles to be used according to the invention are nanoparticles of colloidal silica, China clay, stannic oxide, precipitated barium sulfate, precipitated calcium carbonate, aluminum oxide, titanium dioxide (rutile and anatase) and zinc oxide.
Die erfindungsgemäß zu verwendenden Nanopartikel haben bevorzugt einen mittleren Partikeldurchmesser von 10 nm bis 300 nm, besonders bevorzugt von 20 nm bis 100 nm, ganz besonders bevorzugt von 30nm bis 70nm.The nanoparticles to be used according to the invention preferably have an average particle diameter of from 10 nm to 300 nm, particularly preferably from 20 nm to 100 nm, very particularly preferably from 30 nm to 70 nm.
Die erfindungsgemäße farbgebende Beschichtung enthält einen Lösevermittler, welcher durch die vom Absorber abgegebene Wärmeenergie schmilzt und dann sowohl Farbbildner als auch Farbentwickler löst, die dadurch miteinander in Kontakt geraten und farblich miteinander reagieren können. Beispiele geeigneter Lösevermittler sind: p-Benzylbiphenyl (PBBP), 2-Benzyloxynaphthalin (BON), Di-(p-Methylbenzyl)- oxalat, Diisopropylnaphtalin. Es ist auch möglich, dass die Lösevermittler als mikroverkapseltes System vorliegen.The coloring coating according to the invention contains a solubilizer, which melts by the heat energy emitted by the absorber and then dissolves both color formers and color developers, which thereby come into contact with each other and can react in color. Examples of suitable solubilizers are: p-benzylbiphenyl (PBBP), 2-benzyloxynaphthalene (BON), di (p-methylbenzyl) oxalate, diisopropylnaphthalene. It is also possible that the solubilizers are present as a microencapsulated system.
Gewöhnlich enthält die farbgebende Beschichtung ein Bindemittel, wie Stärkearten, Hydroxyethylcellulose, Methylcellulose, Carboxymethylcellulose, Gelatine, Casein, Gummi arabicum, Polyvinylalkohol, Styrol-Maleinsäureanhydrid-Copolymersalze, Styrol-Acrylsäure-Mischpolymersalze, Styrol-Butadien-Mischpolymeremulsionen oder ähnliche. Das Bindemittel wird zweckmäßig in Mengen von 5 bis etwa 25 Teilen, vorzugsweise von etwa 10 bis 20 Teilen bezogen auf die gesamte Zusammensetzung verwendet.Usually, the coloring coating contains a binder such as starches, hydroxyethyl cellulose, methyl cellulose, carboxymethyl cellulose, gelatin, casein, gum arabic, polyvinyl alcohol, styrene-maleic anhydride copolymer salts, styrene-acrylic acid mixed polymer salts, styrene-butadiene mixed polymer emulsions or the like. The binder is suitably used in amounts of from 5 to about 25 parts, preferably from about 10 to 20 parts based on the total composition.
Gewöhnlich enthält die farbgebende Beschichtung auch ein Pigment, wie Kalziumcarbonat, China Clay, kalzinierter Clay, Aluminiumhydroxid, Bariumsulfat, Titandioxid.Usually, the coloring coating also contains a pigment such as calcium carbonate, china clay, calcined clay, aluminum hydroxide, barium sulfate, titanium dioxide.
Der farbgebenden Beschichtung können auch die verschiedenartigsten Hilfsmittel beigemischt werden. Beispiele von zweckmäßigen Hilfsmitteln sind Dispersionsmittel wie Natriumdioctylsulfosuccinat, Natriumdodecylbenzolsulfonat, Natriumlaurylsulfat und Metallsalze von Fettsäuren; UV-Absorbierungsmittel des Benzophenon, Triazol-Typs oder ähnliche Arten, Antischaummittel, Fluroreszenzfarbstoffe, Färbemittel und dergleichen, ohne hierauf beschränkt zu sein.The coloring coating can be mixed with the most diverse aids. Examples of useful auxiliaries are dispersing agents such as sodium dioctylsulfosuccinate, sodium dodecylbenzenesulfonate, sodium laurylsulfate and metal salts of fatty acids; Benzophenone, triazole type or similar types of UV absorbers, antifoams, fluorescent dyes, colorants and the like, but not limited thereto.
In einer bevorzugten Ausführungsform ist das Substrat ausgewählt aus der Gruppe bestehend aus faserhaltigen Materialien, Kunststoffen und Metallen. In einer besonders bevorzugten Ausführungsform ist das Substrat Papier oder Karton. Ganz besonders bevorzugt weist das Substrat eine flächenbezogene Masse von 40 bis 400 g/m2 auf.In a preferred embodiment, the substrate is selected from the group consisting of fibrous materials, plastics and metals. In a particularly preferred embodiment, the substrate is paper or cardboard. Most preferably, the substrate has a basis weight of 40 to 400 g / m 2 .
Ein weiterer Gegenstand der vorliegenden Erfindung ist ein Verfahren zur Herstellung des erfindungsgemäßen Aufzeichnungsmaterials, bei dem eine Beschichtung umfassend mindestens 3 Lagen, wobei die äußerste Lage Nanopartikel enthält und die inneren Lagen zusammen mindestens einen Farbbildner, mindestens einen Farbentwickler, mindestens einen Absorber und mindestens einen Lösevermittler enthalten und Farbbildner und Farbentwickler nicht in derselben Lage enthalten sind, zumindest auf einem Teil des Substrats aufgebracht wird.Another object of the present invention is a process for the preparation of the recording material according to the invention, wherein a coating comprising at least 3 layers, wherein the outermost layer contains nanoparticles and the inner layers together at least one color former, at least one color developer, at least one absorber and at least one solubilizer and color former and color developer are not contained in the same layer is applied at least on a part of the substrate.
In einer bevorzugten Ausführungsform des erfindungsgemäßen Verfahrens beträgt das Strichgewicht der Beschichtung auf dem Substrat zwischen 1 und 60 g/m2. Besonders bevorzugt beträgt das Strichgewicht der Beschichtung auf dem Substrat zwischen 3 und 20 g/m2.In a preferred embodiment of the method according to the invention, the coating weight of the coating on the substrate is between 1 and 60 g / m 2 . Particularly preferably, the coating weight of the coating on the substrate is between 3 and 20 g / m 2 .
Ein weiterer Gegenstand der vorliegenden Erfindung ist auch ein Lasermarkierungsverfahren, bei welchem die farbgebende Beschichtung des erfindungsgemäßen Aufzeichnungsmaterials, mit einem Laser bestrahlt wird.Another object of the present invention is also a laser marking method in which the coloring coating of the recording material according to the invention, is irradiated with a laser.
In einer bevorzugten Ausführungsform des erfindungsgemäßen Verfahrens wird zur Bestrahlung der farbgebenden Beschichtung ein Faserlaser, Nd:YAG-Laser oder ein Diodenlaser verwendet. Es ist aber auch eine Bestrahlung mit einem CO2-Laser möglich.In a preferred embodiment of the method according to the invention, a fiber laser, Nd: YAG laser or a diode laser is used to irradiate the coloring coating. But it is also possible to irradiate with a CO 2 laser.
Die nachfolgenden Beispiele dienen zur näheren Erläuterung der vorliegenden Erfindung.The following examples serve to illustrate the present invention.
Claims (15)
dadurch gekennzeichnet, dass der mindestens ein Absorber ausgewählt ist aus anorganischen oder organischen Verbindungen, welche eine Absorption von > 60 % der eingestrahlten Energie aufweisen.Recording material according to at least one of claims 1 to 2
characterized in that the at least one absorber is selected from inorganic or organic compounds which have an absorption of> 60% of the energy radiated.
dadurch gekennzeichnet, dass der mindestens eine Farbentwickler ausgewählt ist aus der Gruppe bestehend aus Zinksalzen von Salicylsäure- und Phenol-Verbindungen und Bentonit.Recording material according to at least one of claims 1 to 3
characterized in that the at least one color developer is selected from the group consisting of zinc salts of salicylic acid and phenol compounds and bentonite.
dadurch gekennzeichnet, dass der mindestens eine Farbbildner ausgewählt ist aus der Gruppe bestehend aus Fluranen, Lactamen, Spiro-Verbindungen und Triarylmethan-Verbindungen.Recording material according to at least one of claims 1 to 4
characterized in that the at least one color former is selected from the group consisting of fluranes, lactams, spiro compounds and triarylmethane compounds.
dadurch gekennzeichnet, dass die Nanopartikel einen mittleren Partikeldurchmesser von 10 bis 300 nm aufweisen.Recording material according to at least one of claims 1 to 5
characterized in that the nanoparticles have an average particle diameter of 10 to 300 nm.
dadurch gekennzeichnet, dass die Nanopartikel ausgewählt sind aus der Gruppe bestehend aus kolloidalem Siliciumdioxid, China Clay, Titandioxid, Zinkoxid, gefälltem Bariumsulfat, Zinnoxid, gefälltem Calciumcarbonat und Aluminiumoxid.Recording material according to at least one of claims 1 to 6
characterized in that the nanoparticles are selected from the A group consisting of colloidal silica, china clay, titanium dioxide, zinc oxide, precipitated barium sulfate, tin oxide, precipitated calcium carbonate and alumina.
dadurch gekennzeichnet, dass die Beschichtung weiterhin mindestens ein Pigment und/oder mindestens ein Bindemittel enthält.Recording material according to at least one of claims 1 to 7
characterized in that the coating further contains at least one pigment and / or at least one binder.
dadurch gekennzeichnet, dass das Substrat ausgewählt ist aus der Gruppe bestehend aus faserhaltigen Materialien, Kunststoffen und Metallen.Recording material according to at least one of claims 1 to 8
characterized in that the substrate is selected from the group consisting of fibrous materials, plastics and metals.
dadurch gekennzeichnet, dass das Substrat Papier oder Karton ist.Recording material according to at least one of claims 1 to 9
characterized in that the substrate is paper or cardboard.
dadurch gekennzeichnet, dass das Substrat eine flächenbezogene Masse von 40 bis 400 g/m2 aufweist.Recording material according to at least one of claims 1 to 10
characterized in that the substrate has a basis weight of 40 to 400 g / m 2 .
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09010891A EP2289703A1 (en) | 2009-08-26 | 2009-08-26 | Thermosensitive recording material containing nanoparticles |
US12/868,569 US20110053768A1 (en) | 2009-08-26 | 2010-08-25 | Recording material for laser marking |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09010891A EP2289703A1 (en) | 2009-08-26 | 2009-08-26 | Thermosensitive recording material containing nanoparticles |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2289703A1 true EP2289703A1 (en) | 2011-03-02 |
Family
ID=41127840
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09010891A Withdrawn EP2289703A1 (en) | 2009-08-26 | 2009-08-26 | Thermosensitive recording material containing nanoparticles |
Country Status (2)
Country | Link |
---|---|
US (1) | US20110053768A1 (en) |
EP (1) | EP2289703A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11517166B2 (en) | 2017-08-11 | 2022-12-06 | Dyson Technology Limited | Dirt separator for a vacuum cleaner |
US11963652B2 (en) | 2017-08-11 | 2024-04-23 | Dyson Technology Limited | Handheld vacuum cleaner |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3340945A1 (en) | 1982-11-13 | 1984-05-17 | Kanzaki Paper Mfg. Co., Ltd., Tokyo | MULTI-COLOR RECORDING MATERIAL |
EP0637514A1 (en) | 1993-08-02 | 1995-02-08 | Nippon Kayaku Kabushiki Kaisha | Laser marking method, laser marking composition and articles having color development layer made of said composition |
JPH1158958A (en) * | 1997-08-21 | 1999-03-02 | Oji Paper Co Ltd | Thermal recording medium |
US20060293183A1 (en) * | 2005-06-24 | 2006-12-28 | Eastman Kodak Company | Direct thermographic materials with dual protective layers |
JP2008246737A (en) * | 2007-03-29 | 2008-10-16 | Mitsubishi Paper Mills Ltd | Reversible thermosensitive recording material |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL42926C (en) * | 1934-11-22 | |||
NL109349C (en) * | 1957-06-03 | |||
US2943954A (en) * | 1958-02-10 | 1960-07-05 | Mead Corp | Casting surface for producing castsurfaced mineral coated paper |
DE3225658C1 (en) * | 1982-07-09 | 1984-01-05 | Zanders Feinpapiere AG, 5060 Bergisch Gladbach | Metallized paper and process for making and using same |
JPS5959995A (en) * | 1982-09-28 | 1984-04-05 | 神崎製紙株式会社 | Production of cast coated paper |
JPS59216996A (en) * | 1983-05-18 | 1984-12-07 | 神崎製紙株式会社 | Coating composition for casting coated paper |
US4771891A (en) * | 1986-06-12 | 1988-09-20 | Avery International Corporation | Patterned adhesive label structures |
EP0409836A1 (en) * | 1989-01-18 | 1991-01-30 | Intermills International S.A. | Method for fabricating paper for bottle labels |
US5674590A (en) * | 1995-06-07 | 1997-10-07 | Kimberly-Clark Tissue Company | High water absorbent double-recreped fibrous webs |
DE10112327A1 (en) * | 2001-03-13 | 2002-10-02 | Zanders Feinpapiere Ag | Satin gloss inkjet recording material |
-
2009
- 2009-08-26 EP EP09010891A patent/EP2289703A1/en not_active Withdrawn
-
2010
- 2010-08-25 US US12/868,569 patent/US20110053768A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3340945A1 (en) | 1982-11-13 | 1984-05-17 | Kanzaki Paper Mfg. Co., Ltd., Tokyo | MULTI-COLOR RECORDING MATERIAL |
EP0637514A1 (en) | 1993-08-02 | 1995-02-08 | Nippon Kayaku Kabushiki Kaisha | Laser marking method, laser marking composition and articles having color development layer made of said composition |
JPH1158958A (en) * | 1997-08-21 | 1999-03-02 | Oji Paper Co Ltd | Thermal recording medium |
US20060293183A1 (en) * | 2005-06-24 | 2006-12-28 | Eastman Kodak Company | Direct thermographic materials with dual protective layers |
JP2008246737A (en) * | 2007-03-29 | 2008-10-16 | Mitsubishi Paper Mills Ltd | Reversible thermosensitive recording material |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11517166B2 (en) | 2017-08-11 | 2022-12-06 | Dyson Technology Limited | Dirt separator for a vacuum cleaner |
US11963652B2 (en) | 2017-08-11 | 2024-04-23 | Dyson Technology Limited | Handheld vacuum cleaner |
Also Published As
Publication number | Publication date |
---|---|
US20110053768A1 (en) | 2011-03-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3340945C2 (en) | ||
DE112012001184B4 (en) | Thermal recording material and method of making the same | |
DE3312716C3 (en) | Heat-sensitive recording material | |
DE112011100779B4 (en) | Thermal recording material and method of making the same | |
DE69409781T2 (en) | Heat sensitive recording paper | |
DE60006196T2 (en) | Self-adhesive label for heat recording | |
DE60216089T2 (en) | HEAT-SENSITIVE RECORDING ELEMENT WITH LASER RECORDING | |
DE3828731C2 (en) | Thermosensitive recording material | |
DE69915962T2 (en) | Heat-sensitive recording medium | |
DE69606504T2 (en) | Heat sensitive recording material containing a fatty acid amide | |
DE112007002203T5 (en) | Thermal recording material | |
DE69500152T2 (en) | Aminobenzenesulphonamide derivatives as color developers for heat-sensitive recording materials | |
DE112008002571B4 (en) | Thermal recording material and method for the production thereof | |
DE60315695T2 (en) | HEAT-SENSITIVE RECORDING MEDIUM | |
EP2289703A1 (en) | Thermosensitive recording material containing nanoparticles | |
DE68903842T2 (en) | HEAT SENSITIVE RECORDING MATERIAL. | |
DE69023818T2 (en) | Heat sensitive recording material. | |
DE69013936T2 (en) | Heat sensitive recording material. | |
DE68927137T2 (en) | Heat sensitive recording material | |
DE102008007596A1 (en) | Producing thermal recording material, particularly thermal papers for use as substrate, involves providing substrate, where coating containing pigments is formed on one side of substrate | |
DE3879539T2 (en) | HEAT SENSITIVE RECORD SHEET. | |
DE69904397T2 (en) | Heat sensitive recording medium | |
DE4012185C1 (en) | ||
DE69101205T2 (en) | Heat sensitive recording material. | |
DE69413750T2 (en) | Heat sensitive recording material |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA RS |
|
17P | Request for examination filed |
Effective date: 20110716 |
|
17Q | First examination report despatched |
Effective date: 20110906 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20130220 |