MXPA06007580A - Aqueous flexographic printing inks - Google Patents
Aqueous flexographic printing inksInfo
- Publication number
- MXPA06007580A MXPA06007580A MXPA/A/2006/007580A MXPA06007580A MXPA06007580A MX PA06007580 A MXPA06007580 A MX PA06007580A MX PA06007580 A MXPA06007580 A MX PA06007580A MX PA06007580 A MXPA06007580 A MX PA06007580A
- Authority
- MX
- Mexico
- Prior art keywords
- pigment
- yellow
- pigment yellow
- plasticizer
- red
- Prior art date
Links
- 238000007639 printing Methods 0.000 title claims abstract description 30
- 239000000976 ink Substances 0.000 title description 72
- 239000000049 pigment Substances 0.000 claims abstract description 42
- 239000000203 mixture Substances 0.000 claims abstract description 29
- PPBRXRYQALVLMV-UHFFFAOYSA-N styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000004014 plasticizer Substances 0.000 claims abstract description 20
- 229920001577 copolymer Polymers 0.000 claims abstract description 14
- 238000007647 flexography Methods 0.000 claims description 56
- VCYBIENCKPXWDZ-SGWCAAJKSA-N (4E)-4-[(2,5-dichlorophenyl)hydrazinylidene]-3-oxo-N-phenylnaphthalene-2-carboxamide Chemical compound ClC1=CC=C(Cl)C(N\N=C\2C3=CC=CC=C3C=C(C/2=O)C(=O)NC=2C=CC=CC=2)=C1 VCYBIENCKPXWDZ-SGWCAAJKSA-N 0.000 claims description 18
- RBTKNAXYKSUFRK-UHFFFAOYSA-N Heliogen blue Chemical compound [Cu].[N-]1C2=C(C=CC=C3)C3=C1N=C([N-]1)C3=CC=CC=C3C1=NC([N-]1)=C(C=CC=C3)C3=C1N=C([N-]1)C3=CC=CC=C3C1=N2 RBTKNAXYKSUFRK-UHFFFAOYSA-N 0.000 claims description 8
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 claims description 4
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical group OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 claims description 4
- ILVGAIQLOCKNQA-UHFFFAOYSA-N propyl 2-hydroxypropanoate Chemical group CCCOC(=O)C(C)O ILVGAIQLOCKNQA-UHFFFAOYSA-N 0.000 claims description 4
- 239000000600 sorbitol Substances 0.000 claims description 4
- PYUYQYBDJFMFTH-WMMMYUQOSA-N Naphthol Red Chemical compound CCOC1=CC=CC=C1NC(=O)C(C1=O)=CC2=CC=CC=C2\C1=N\NC1=CC=C(C(N)=O)C=C1 PYUYQYBDJFMFTH-WMMMYUQOSA-N 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- JABZBOSSCDRKEA-VLGSPTGOSA-N (1Z)-1-[(2,4-dinitrophenyl)hydrazinylidene]naphthalen-2-one Chemical compound [O-][N+](=O)C1=CC([N+](=O)[O-])=CC=C1N\N=C/1C2=CC=CC=C2C=CC\1=O JABZBOSSCDRKEA-VLGSPTGOSA-N 0.000 claims description 2
- IFURDYKCIIODMK-CAPFRKAQSA-N (2E)-2-[(2-methoxy-4-nitrophenyl)hydrazinylidene]-3-oxo-N-phenylbutanamide Chemical compound COC1=CC([N+]([O-])=O)=CC=C1N\N=C(/C(C)=O)C(=O)NC1=CC=CC=C1 IFURDYKCIIODMK-CAPFRKAQSA-N 0.000 claims description 2
- HERTVNKDSUIUDK-JBASAIQMSA-N (4E)-N-(2-methylphenyl)-3-oxo-4-[(2,4,5-trichlorophenyl)hydrazinylidene]naphthalene-2-carboxamide Chemical compound CC1=CC=CC=C1NC(=O)C(C1=O)=CC2=CC=CC=C2\C1=N/NC1=CC(Cl)=C(Cl)C=C1Cl HERTVNKDSUIUDK-JBASAIQMSA-N 0.000 claims description 2
- RUFMGIMUBZLQQF-QYQHSDTDSA-N (4Z)-4-[(2-methoxy-5-nitrophenyl)hydrazinylidene]-N-(3-nitrophenyl)-3-oxonaphthalene-2-carboxamide Chemical compound COC1=CC=C([N+]([O-])=O)C=C1N\N=C/1C2=CC=CC=C2C=C(C(=O)NC=2C=C(C=CC=2)[N+]([O-])=O)C\1=O RUFMGIMUBZLQQF-QYQHSDTDSA-N 0.000 claims description 2
- HVBDWKMAUMVFIY-QYQHSDTDSA-N (4Z)-4-[(2-methyl-5-nitrophenyl)hydrazinylidene]-3-oxo-N-phenylnaphthalene-2-carboxamide Chemical compound CC1=CC=C([N+]([O-])=O)C=C1N\N=C/1C2=CC=CC=C2C=C(C(=O)NC=2C=CC=CC=2)C\1=O HVBDWKMAUMVFIY-QYQHSDTDSA-N 0.000 claims description 2
- QTSNFLIDNYOATQ-UHFFFAOYSA-N 2-[(4-chloro-2-nitrophenyl)diazenyl]-N-(2-chlorophenyl)-3-oxobutanamide Chemical compound C=1C=CC=C(Cl)C=1NC(=O)C(C(=O)C)N=NC1=CC=C(Cl)C=C1[N+]([O-])=O QTSNFLIDNYOATQ-UHFFFAOYSA-N 0.000 claims description 2
- QPHCXDDGQQLPIM-UHFFFAOYSA-N 2-[(4-chloro-2-nitrophenyl)diazenyl]-N-(2-methoxyphenyl)-3-oxobutanamide Chemical compound COC1=CC=CC=C1NC(=O)C(C(C)=O)N=NC1=CC=C(Cl)C=C1[N+]([O-])=O QPHCXDDGQQLPIM-UHFFFAOYSA-N 0.000 claims description 2
- ZCDDNAUHUZEVSJ-UHFFFAOYSA-N 2-[(4-chloro-2-nitrophenyl)diazenyl]-N-(4-ethoxyphenyl)-3-oxobutanamide Chemical compound C1=CC(OCC)=CC=C1NC(=O)C(C(C)=O)N=NC1=CC=C(Cl)C=C1[N+]([O-])=O ZCDDNAUHUZEVSJ-UHFFFAOYSA-N 0.000 claims description 2
- MFYSUUPKMDJYPF-UHFFFAOYSA-N 2-[(4-methyl-2-nitrophenyl)diazenyl]-3-oxo-N-phenylbutanamide Chemical compound C=1C=CC=CC=1NC(=O)C(C(=O)C)N=NC1=CC=C(C)C=C1[N+]([O-])=O MFYSUUPKMDJYPF-UHFFFAOYSA-N 0.000 claims description 2
- IAFBRPFISOTXSO-UHFFFAOYSA-N 2-[[2-chloro-4-[3-chloro-4-[[1-(2,4-dimethylanilino)-1,3-dioxobutan-2-yl]diazenyl]phenyl]phenyl]diazenyl]-N-(2,4-dimethylphenyl)-3-oxobutanamide Chemical compound C=1C=C(C)C=C(C)C=1NC(=O)C(C(=O)C)N=NC(C(=C1)Cl)=CC=C1C(C=C1Cl)=CC=C1N=NC(C(C)=O)C(=O)NC1=CC=C(C)C=C1C IAFBRPFISOTXSO-UHFFFAOYSA-N 0.000 claims description 2
- VTGOEJALMFECDQ-UHFFFAOYSA-N 2-[[2-chloro-4-[3-chloro-4-[[1-(2-methoxyanilino)-1,3-dioxobutan-2-yl]diazenyl]phenyl]phenyl]diazenyl]-N-(2-methoxyphenyl)-3-oxobutanamide Chemical compound COC1=CC=CC=C1NC(=O)C(C(C)=O)N=NC1=CC=C(C=2C=C(Cl)C(N=NC(C(C)=O)C(=O)NC=3C(=CC=CC=3)OC)=CC=2)C=C1Cl VTGOEJALMFECDQ-UHFFFAOYSA-N 0.000 claims description 2
- XAQOUXKUARYQQO-UHFFFAOYSA-N 2-[[2-chloro-4-[3-chloro-4-[[1-(2-methylanilino)-1,3-dioxobutan-2-yl]diazenyl]phenyl]phenyl]diazenyl]-N-(2,4-dimethylphenyl)-3-oxobutanamide Chemical compound C=1C=CC=C(C)C=1NC(=O)C(C(=O)C)N=NC(C(=C1)Cl)=CC=C1C(C=C1Cl)=CC=C1N=NC(C(C)=O)C(=O)NC1=CC=C(C)C=C1C XAQOUXKUARYQQO-UHFFFAOYSA-N 0.000 claims description 2
- LQZFGPJGXVFSTR-UHFFFAOYSA-N 2-[[2-chloro-4-[3-chloro-4-[[1-(2-methylanilino)-1,3-dioxobutan-2-yl]diazenyl]phenyl]phenyl]diazenyl]-N-(2-methylphenyl)-3-oxobutanamide Chemical compound C=1C=CC=C(C)C=1NC(=O)C(C(=O)C)N=NC(C(=C1)Cl)=CC=C1C(C=C1Cl)=CC=C1N=NC(C(C)=O)C(=O)NC1=CC=CC=C1C LQZFGPJGXVFSTR-UHFFFAOYSA-N 0.000 claims description 2
- NKXPXRNUMARIMZ-UHFFFAOYSA-N 2-[[2-chloro-4-[3-chloro-4-[[1-(4-chloro-2,5-dimethoxyanilino)-1,3-dioxobutan-2-yl]diazenyl]phenyl]phenyl]diazenyl]-N-(4-chloro-2,5-dimethoxyphenyl)-3-oxobutanamide Chemical compound C1=C(Cl)C(OC)=CC(NC(=O)C(N=NC=2C(=CC(=CC=2)C=2C=C(Cl)C(N=NC(C(C)=O)C(=O)NC=3C(=CC(Cl)=C(OC)C=3)OC)=CC=2)Cl)C(C)=O)=C1OC NKXPXRNUMARIMZ-UHFFFAOYSA-N 0.000 claims description 2
- DMPXHEMGDYKSFL-UHFFFAOYSA-N 2-[[4-[4-[(1-anilino-1,3-dioxobutan-2-yl)diazenyl]-3-methoxyphenyl]-2-methoxyphenyl]diazenyl]-3-oxo-N-phenylbutanamide Chemical compound COC1=CC(C=2C=C(OC)C(N=NC(C(C)=O)C(=O)NC=3C=CC=CC=3)=CC=2)=CC=C1N=NC(C(C)=O)C(=O)NC1=CC=CC=C1 DMPXHEMGDYKSFL-UHFFFAOYSA-N 0.000 claims description 2
- HKYYDLYCGBDWSB-UHFFFAOYSA-N 4-[[2-chloro-4-[3-chloro-4-[(3-methyl-5-oxo-1-phenyl-4H-pyrazol-4-yl)diazenyl]phenyl]phenyl]diazenyl]-5-methyl-2-phenyl-4H-pyrazol-3-one Chemical compound CC1=NN(C=2C=CC=CC=2)C(=O)C1N=NC(C(=C1)Cl)=CC=C1C(C=C1Cl)=CC=C1N=NC(C1=O)C(C)=NN1C1=CC=CC=C1 HKYYDLYCGBDWSB-UHFFFAOYSA-N 0.000 claims description 2
- JRJLLXQDXANQEC-UHFFFAOYSA-N Fastogen Green Y Chemical compound [Cu+2].[N-]1C(N=C2C3=C(Cl)C(Cl)=C(Br)C(Cl)=C3C(N=C3C4=C(Br)C(Cl)=C(Br)C(Cl)=C4C(=N4)[N-]3)=N2)=C(C(Br)=C(Cl)C(Br)=C2Cl)C2=C1N=C1C2=C(Cl)C(Cl)=C(Cl)C(Br)=C2C4=N1 JRJLLXQDXANQEC-UHFFFAOYSA-N 0.000 claims description 2
- WNWZKKBGFYKSGA-UHFFFAOYSA-N N-(4-chloro-2,5-dimethoxyphenyl)-2-[[2,5-dimethoxy-4-(phenylsulfamoyl)phenyl]diazenyl]-3-oxobutanamide Chemical compound C1=C(Cl)C(OC)=CC(NC(=O)C(N=NC=2C(=CC(=C(OC)C=2)S(=O)(=O)NC=2C=CC=CC=2)OC)C(C)=O)=C1OC WNWZKKBGFYKSGA-UHFFFAOYSA-N 0.000 claims description 2
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N Phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 claims description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 2
- 239000006229 carbon black Substances 0.000 claims description 2
- CTBASIXHDUUSCV-PFNMRQQASA-L disodium;(4Z)-4-[(4-methyl-2-sulfonatophenyl)hydrazinylidene]-3-oxonaphthalene-2-carboxylate Chemical compound [Na+].[Na+].[O-]S(=O)(=O)C1=CC(C)=CC=C1N\N=C/1C2=CC=CC=C2C=C(C([O-])=O)C\1=O CTBASIXHDUUSCV-PFNMRQQASA-L 0.000 claims description 2
- PLYDMIIYRWUYBP-UHFFFAOYSA-N ethyl 4-[[2-chloro-4-[3-chloro-4-[(3-ethoxycarbonyl-5-oxo-1-phenyl-4H-pyrazol-4-yl)diazenyl]phenyl]phenyl]diazenyl]-5-oxo-1-phenyl-4H-pyrazole-3-carboxylate Chemical compound CCOC(=O)C1=NN(C=2C=CC=CC=2)C(=O)C1N=NC(C(=C1)Cl)=CC=C1C(C=C1Cl)=CC=C1N=NC(C(=N1)C(=O)OCC)C(=O)N1C1=CC=CC=C1 PLYDMIIYRWUYBP-UHFFFAOYSA-N 0.000 claims description 2
- NYGZLYXAPMMJTE-UHFFFAOYSA-M metanil yellow Chemical group [Na+].[O-]S(=O)(=O)C1=CC=CC(N=NC=2C=CC(NC=3C=CC=CC=3)=CC=2)=C1 NYGZLYXAPMMJTE-UHFFFAOYSA-M 0.000 claims description 2
- HWLCXJRHGUPXJZ-RTLSQWIOSA-K sodium;iron(2+);(1E)-1-oxidoiminonaphthalen-2-one;(1Z)-1-oxidoiminonaphthalen-2-one Chemical compound [Na+].[Fe+2].C1=CC=C2C(=N/[O-])\C(=O)C=CC2=C1.C1=CC=C2C(=N/[O-])\C(=O)C=CC2=C1.C1=CC=C2C(=N/[O-])/C(=O)C=CC2=C1 HWLCXJRHGUPXJZ-RTLSQWIOSA-K 0.000 claims description 2
- 229920001909 styrene-acrylic polymer Polymers 0.000 claims description 2
- 239000000123 paper Substances 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000010186 staining Methods 0.000 description 6
- 230000000737 periodic Effects 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- 241001465382 Physalis alkekengi Species 0.000 description 3
- 235000014036 Castanea Nutrition 0.000 description 2
- 241001070941 Castanea Species 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 239000003550 marker Substances 0.000 description 2
- KJCVRFUGPWSIIH-UHFFFAOYSA-N 1-Naphthol Chemical compound C1=CC=C2C(O)=CC=CC2=C1 KJCVRFUGPWSIIH-UHFFFAOYSA-N 0.000 description 1
- 241001124569 Lycaenidae Species 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000002349 favourable Effects 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 238000009998 heat setting Methods 0.000 description 1
- 238000001459 lithography Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000000135 prohibitive Effects 0.000 description 1
- 239000006254 rheological additive Substances 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
Abstract
An aqueous flexographic printing ink composition containing a pigment, a styrene:acrylic copolymer and a plasticizer.
Description
AQUEOUS INKS FOR FLEXOGRAPHY
FIELD OF THE INVENTION The invention relates to aqueous inks for flexography that produce superior gloss when printed using a high speed on a rough surface.
BACKGROUND OF THE INVENTION The demands for a high-speed quality printing have created conditions that are not favorable for the production of a higher brightness. Printing on a rough surface is particularly difficult to achieve a higher gloss since the gloss depends on the degree of softness of the printing surface. It is known that the final gloss of the printed ink can be generated by coating the paper substrate, but the cost of coated newsprint or other rough paper substrates would be prohibitive for its use. As stated above, the brightness of the print is conventionally produced either by printing the ink on a coated smooth paper, as presented in the North American Patent. 4,012,543, or apply a heat setting printing press, as described in the US Patent? 3,405,082 for lithography. The
Curing with radiation is another method to achieve a higher brightness, as reported in US Patents Nos. 4,204,010, 4,334,970 and 5,554,212. Patent EP 0771861 A3 discloses a phase change ink, which can generate a higher brightness by controlling the temperature on the thermo-inversion point of the hyperthermogelling component for the jet ink. Japanese Patent No. JP 62-179504 describes the use of the styrene / acrylic copolymer as a binder in inks to generate a good film gloss and durability for corrugated cardboard. Therefore, there is a need for a quality high-speed flexo ink that produces a superior gloss, particularly on a rough surface.
BRIEF DESCRIPTION OF THE INVENTION The present invention provides an aqueous ink composition for flexography comprising a pigment, a styrene: acrylic copolymer and a plasticizer. The present invention also provides a method for improving the glossiness of printing an aqueous ink composition for flexography comprising adding a styrene: acrylic copolymer and a plasticizer to the printing ink prior to printing.
Other objects and advantages of the present invention will become apparent from the following description and the appended claims.
DETAILED DESCRIPTION OF THE INVENTION In accordance with the present invention, it has surprisingly been discovered that gloss on periodic rough surface paper, conventional with aqueous inks for flexography can be generated during high speed printing by introducing a styrene / acrylic copolymer and a plasticizer to ink formulas for printing. Suitable copolymers of styrene: acrylic include, but are not limited to, those having a pH greater than 7.5. It is preferred that the styrene: acrylic copolymer be Lucidene 612 ^ manufactured by Roman Haas of Springhouse, PA. The styrene: acrylic copolymer is about 40-80% by weight of the composition, preferably 50-70% by weight. The aqueous ink for flexography also includes a plasticizer, which may be sorbitol or n-propyl lactate. The plasticizer works by smoothing the surface of the polymer particles and connecting them to form a uniform lattice structure. The plasticizer is approximately 3-20% by weight of the
composition, preferably about 5-20% by weight and more preferably about 8-12% by weight. The aqueous ink for flexography also contains a pigment. Suitable pigments include, but are not limited to, monoazo yellows, monoariluro yellows, diaryluro yellows, naphthol reds, rubin reds, lithol rubins, phthalocyanine blues and carbon black. Other suitable pigments include, but are not limited to, Pigment Yellow 1, Pigment Yellow 3, Pigment Yellow 11, Pigment Yellow 12, Pigment Yellow 13, Pigment Yellow 14, Pigment Yellow 17, Pigment Yellow 63, Pigment Yellow 65, Pigment Yellow 73, Pigment Yellow 74 , Pigment Yellow 75, Pigment Yellow 83, Pigment Yellow 97, Pigment Yellow 98, Pigment Yellow 106, Pigment Yellow 114, Pigment Yellow 121, Pigment Yellow 126, Pigment Yellow 127, Pigment Yellow 136, Pigment Yellow 174, Pigment Yellow 176, Pigment Yellow 188, Pigment Orange 5, Pigment Orange 13, Pigment Orange 16, Pigment Orange 34, Pigment Red 2, Pigment Red 9, Pigment Red 14, Pigment Red 17, Pigment Red 22, Pigment Red 23, Pigment Red 37, Pigment Red 38 , Pigment Red 41, Pigment Red 42, Pigment Red 57: 1, Pigment Red 112, Pigment Red 170, Pigment Red 210, Pigment Red 238, Pigment Blue 15, Pigment Blue 15: 1,
Pigment Blue 15: 2, Pigment Blue 15: 3, Pigment Blue 15: 4, Pigment Green 7, Pigment Green 36, Pigment Violet 23 and Pigment Black 7. The aqueous ink for flexography of the present invention also contains water. Other additives such as defoamers may be included. You can also add some rheological additive as appropriate and include those known in the field. The aqueous inks for flexography of the present invention are formulated by adding a plasticizer, such as sorbitol or n-propyl lactate, to a copolymer, such as a styrene-acrylic copolymer. The pigment can be added at any time. Water and additives such as an antifoam can also be added at any time to the aqueous ink composition for flexography. The aqueous inks for flexography that are prepared according to the present invention are suitable for coated or uncoated paper substrates, with the advantage of the invention being the brightness value of the printing ink on an uncoated substrate. The aqueous inks for flexography of the present invention were conducted at room temperature in a Geni press at 366 mpm (1200 ppm) on newspaper (uncoated paper substrate). The printing results for
all experimental flexographic aqueous inks showed a superior gloss on paper ranging from 1.5 to 3 points, measured on a 75 ° Micro-Gloss ™ 1 meter. Conventional comparison flexo inks typically have brightness values from 1.5 to 3.5 points lower than paper. In addition, the printing densities and the first printing stains of the printing inks of the present invention were equal or comparable to conventional printing inks. All printing inks were also conducted in a Chestnut press at 91.5 mpm (300 ppm) for color trap tests. The brightness results of the color trap for the printing inks of the present invention had brightness values further increased beyond the simple sum for the individual color printing. In addition, the density and staining of the inks of the present invention were comparable to conventional flexographic aqueous inks for comparison, which generate a lower gloss than paper. The aqueous ink compositions for flexography of the present invention are further illustrated by means of the following non-limiting examples in which all the parts and percentages of
components are by weight and are based on the total weight of the composition, unless otherwise indicated.
Example 1 A black ink for water-based flexography was prepared as set forth in Table 1 below.
Table 1
Aqueous ink for experimental flexography was run twice in a Genik press at 366 mpm (1200 ppm) for three minutes at room temperature on a 3060-pound Bowater ™ newspaper in a line marker 500 and then a 440 line marker. No differences were observed in terms of brightness, density or staining for any driving. Newsprint of aqueous ink for
Experimental flexography conducted on a 500 line probe was tested for brightness and density compared to an aqueous ink for conventional flexography. The brightness test was measured with a 75 ° Micro-Gloss ™ meter manufactured by BYK Gardener of Columbia, Maryland. The density test was measured on an X-Rite 428ffi device, manufactured by X-Rite Corp. of Grandville, MI. The results of the test are shown in Table 2 below.
Table 2
The aqueous ink for flexography of Example 1 produced a much higher gloss than the aqueous ink for conventional flexography, while maintaining a density comparable to the aqueous ink for conventional flexography. In addition, the first printing stain of the aqueous ink for flexography of Example 1 was comparable to the aqueous ink for conventional flexography.
Example 2 A yellow ink for flexography based on
Water was prepared as set forth in Table 3 below. Table 3
The aqueous ink for experimental flexography of
Example 2 was conducted twice in a Genik press as set forth in Example 1 above. No differences were observed in terms of brightness, density or staining in any conduction. The periodic paper of the aqueous ink for experimental flexography conducted in a line
500 was tested for brightness (75 ° Micro-Gloss ™ meter) and density (X-Rite 428ffi) compared to an aqueous ink for conventional flexography as described in Example 1. The test results are set forth in Table 4 below.
Table 4
The aqueous ink for flexography of Example 2 produced a much higher brightness than the aqueous ink for conventional flexography, while maintaining a density comparable to the aqueous ink for conventional flexography. In addition, the first printing stain of the aqueous ink for flexography of Example 2 was comparable to the aqueous ink for conventional flexography.
Example 3 A magenta ink for water-based flexography was prepared as set forth in Table 5 below. Based on a color matching consideration, a dye was introduced to Example 3.
Table 5
The aqueous ink for experimental flexography of Example 3 was run twice in a Genik press as set forth in Example 1 above. No differences were observed in terms of brightness, density or staining in any conduction. Periodic paper of the aqueous ink for experimental flexography conducted on a lantern 500 was tested for brightness (meter 75 ° Micro-Gloss ^) and density (X-Rite 428 ^) compared to an aqueous ink for conventional flexography as is described in Example 1. The results of the test are set forth in Table 6 below.
Table 6
The aqueous ink for flexography of Example 3 produced a much higher gloss than the aqueous ink for conventional flexography, while maintaining a density comparable to the aqueous ink for conventional flexography. In addition, the first printing stain of the aqueous ink for flexography of Example 3 was comparable to the aqueous ink for conventional flexography.
Example 4 A cyan ink for water-based flexography was prepared as set forth in Table 7 below.
Table 7
The aqueous ink for experimental flexography of Example 4 was run twice in a Genik press as set forth in Example 1 above. No differences were observed in terms of brightness, density or staining in any conduction. Periodic paper of the aqueous ink for experimental flexography conducted in a lantern 500 was tested for brightness (meter 75 ° Micro-Gloss ") and density (X-Rite 42d101) compared to an aqueous ink for conventional flexography as described in Example 1. The results of the test are set forth in Table 8 below.
Table 8
The aqueous ink for flexography of Example 4 produced a much higher brightness than the aqueous ink for conventional flexography, while maintaining a density comparable to the aqueous ink for conventional flexography. In addition, the first printing stain of the aqueous ink for flexography of Example 4 was comparable to the aqueous ink for conventional flexography.
Example 5 The color traps using the experimental flexographic aqueous inks of Examples 2, 3 and 4 were tested in a Chestnut printing press at 91.5 mpm (300 ppm) and compared to the color traps driven in the same printing house. using aqueous inks for conventional flexography. The Brightness Value was measured with a 75 ° Micro-Gloss ^ meter. The results are shown in Table 9 below.
Table 9
Example 6 A black ink for water-based flexography was prepared as set forth in Table 10 below.
Table 10
The aqueous ink for experimental flexography of Example 6 was run twice in a Genik press as set forth in Example 1 above. No differences were observed in terms of brightness, density or staining in any conduction. The periodic paper of the aqueous ink for experimental flexography conducted in a lantern 500 was tested for brightness (meter 75 ° Micro-
Claims (19)
- Gloss ™ 1) and density (X-Rite 428ffi) compared to an aqueous ink for conventional flexography as described in Example 1. The results of the test are set forth in Table 11 below. Table 11 The invention has been described in terms of preferred embodiments thereof, but is more widely applicable as will be understood by those skilled in the art. The scope of the invention is limited only by the following claims. CLAIMS 1. An aqueous ink composition for flexography, characterized in that it comprises a pigment, a styrene: acrylic copolymer and a plasticizer.
- 2. The ink composition according to claim 1, characterized in that the pigment is selected from the group consisting of monoazo yellow, monoariluro yellow, diaryluro yellow, naphthol red, rubina red, lithol rubina, blue phthalocyanine and carbon black.
- 3. The ink composition according to claim 2, characterized in that the pigment is selected from the group consisting of Pigment Yellow 1, Pigment Yellow 3, Pigment Yellow 11, Pigment Yellow 12, Pigment Yellow 13, Pigment Yellow 14, Pigment Yellow 17, Pigment Yellow 63, Pigment Yellow 65, Pigment Yellow 73, Pigment Yellow 74, Pigment Yellow 75, Pigment Yellow 83, Pigment Yellow 97, Pigment Yellow 98, Pigment Yellow 106, Pigment Yellow 114, Pigment Yellow 121, Pigment Yellow 126, Pigment Yellow 127, Pigment Yellow 136, Pigment Yellow 174, Pigment Yellow 176, Pigment Yellow 188, Pigment Orange 5, Pigment Orange 13, Pigment Orange 16, Pigment Orange 34, Pigment Red 2, Pigment Red 9, Pigment Red 14, Pigment Red 17, Pigment Red 22, Pigment Red 23, Pigment Red 37, Pigment Red 38, Pigment Red 41, Pigment Red 42, Pigment Red 57: 1, Pigment Red 112, Pigment Red 170, Pigment Red 210, Pigment Red 238, Pigment Blue 15, Pigment Blue 15: 1, Pigment Blue 15: 2, Pigment Blue 15: 3, Pigment Blue 15: 4, Pigment Green 7, Pigment Green 36, Pigment Violet 23 and Black Pigment 7. The ink composition according to claim 1, characterized in that the styrene: acrylic copolymer is from about 40 to 80% by weight of the composition. The ink composition according to claim 4, characterized in that the styrene: acrylic copolymer is from about 50 to 70% by weight of the composition. 6. The ink composition according to claim 1, characterized in that the plasticizer is sorbitol. The ink composition according to claim 1, characterized in that the plasticizer is n-propyl lactate. The ink composition according to claim 1, characterized in that the plasticizer is from about 3 to 20% by weight of the composition. 9. The ink composition according to claim 8, characterized in that the plasticizer is from about 8 to 12% by weight of the composition. 10. The ink composition according to claim 9, characterized in that the plasticizer is about 10% by weight of the composition. 11. A method for improving the glossiness of printing an aqueous ink composition for flexography, characterized in that it comprises adding to the ink before printing a styrene: acrylic copolymer and a plasticizer. The method according to claim 11, characterized in that the styrene-acrylic copolymer is added in an amount equal to about 40 to 80% by weight of the total weight of the composition. The method according to claim 12, characterized in that the acrylic styrene copolymer is added in an amount equal to about 50 to 70% by weight of the total weight of the composition. The method according to claim 11, characterized in that the plasticizer is sorbitol. 15. The method of compliance with claim 11, characterized in that the plasticizer is n-propyl lactate. The method according to claim 11, characterized in that the plasticizer is added in an amount equal to about 3 to 20% by weight of the composition. 17. The method according to claim 16, characterized in that the plasticizer is present in an amount equal to about 8 to 12% by weight of the composition. 18. The method according to claim 17, characterized in that the plasticizer is added in an amount equal to about 10% by weight of the composition. 19. The method according to claim 11, characterized in that the improvement in the brightness of the print is achieved when printing on a rough surface.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10751163 | 2003-12-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| MXPA06007580A true MXPA06007580A (en) | 2006-12-13 |
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