EP0322658B1 - Solution de mouillage pour impression offset - Google Patents
Solution de mouillage pour impression offset Download PDFInfo
- Publication number
- EP0322658B1 EP0322658B1 EP88120958A EP88120958A EP0322658B1 EP 0322658 B1 EP0322658 B1 EP 0322658B1 EP 88120958 A EP88120958 A EP 88120958A EP 88120958 A EP88120958 A EP 88120958A EP 0322658 B1 EP0322658 B1 EP 0322658B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- damping solution
- solution
- dampening solution
- printing
- offset printing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000007645 offset printing Methods 0.000 title claims description 12
- 238000013016 damping Methods 0.000 title claims 9
- 239000000243 solution Substances 0.000 claims description 45
- 150000001875 compounds Chemical class 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 12
- 150000003839 salts Chemical class 0.000 claims description 8
- 230000007062 hydrolysis Effects 0.000 claims description 5
- 238000006460 hydrolysis reaction Methods 0.000 claims description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 4
- 125000004432 carbon atom Chemical group C* 0.000 claims description 4
- 239000012141 concentrate Substances 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 claims description 4
- 230000007797 corrosion Effects 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- 239000003139 biocide Substances 0.000 claims description 3
- 239000007853 buffer solution Substances 0.000 claims description 3
- 239000003112 inhibitor Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 2
- 125000000217 alkyl group Chemical group 0.000 claims description 2
- 230000003115 biocidal effect Effects 0.000 claims description 2
- 150000002431 hydrogen Chemical class 0.000 claims description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 2
- 125000003118 aryl group Chemical group 0.000 claims 1
- 238000007639 printing Methods 0.000 description 21
- 239000000976 ink Substances 0.000 description 11
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 9
- LXSIHXFNFUHKPO-UHFFFAOYSA-N 2-trihydroxysilylethylphosphonic acid Chemical compound O[Si](O)(O)CCP(O)(O)=O LXSIHXFNFUHKPO-UHFFFAOYSA-N 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- -1 alkali metal salts Chemical class 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229920000084 Gum arabic Polymers 0.000 description 3
- 229920000388 Polyphosphate Polymers 0.000 description 3
- 241000978776 Senegalia senegal Species 0.000 description 3
- 239000000205 acacia gum Substances 0.000 description 3
- 235000010489 acacia gum Nutrition 0.000 description 3
- 230000002209 hydrophobic effect Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 239000001205 polyphosphate Substances 0.000 description 3
- 235000011176 polyphosphates Nutrition 0.000 description 3
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 238000007792 addition Methods 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000001768 carboxy methyl cellulose Substances 0.000 description 2
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 2
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 150000001860 citric acid derivatives Chemical class 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920002401 polyacrylamide Polymers 0.000 description 2
- 239000005871 repellent Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 125000005369 trialkoxysilyl group Chemical group 0.000 description 2
- KTBDNSOWRGZLJK-UHFFFAOYSA-N 2-dimethoxyphosphorylethyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)CCP(=O)(OC)OC KTBDNSOWRGZLJK-UHFFFAOYSA-N 0.000 description 1
- 239000004254 Ammonium phosphate Substances 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 229910000148 ammonium phosphate Inorganic materials 0.000 description 1
- 235000019289 ammonium phosphates Nutrition 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 150000005840 aryl radicals Chemical class 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 229920003086 cellulose ether Polymers 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 description 1
- MJUJXFBTEFXVKU-UHFFFAOYSA-N diethyl phosphonate Chemical compound CCOP(=O)OCC MJUJXFBTEFXVKU-UHFFFAOYSA-N 0.000 description 1
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 1
- YLFBFPXKTIQSSY-UHFFFAOYSA-N dimethoxy(oxo)phosphanium Chemical compound CO[P+](=O)OC YLFBFPXKTIQSSY-UHFFFAOYSA-N 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 150000002334 glycols Chemical class 0.000 description 1
- 239000008233 hard water Substances 0.000 description 1
- 239000003906 humectant Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 229930014626 natural product Natural products 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 150000004756 silanes Chemical class 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- 229910000406 trisodium phosphate Inorganic materials 0.000 description 1
- 235000019801 trisodium phosphate Nutrition 0.000 description 1
- ZTWTYVWXUKTLCP-UHFFFAOYSA-N vinylphosphonic acid Chemical compound OP(O)(=O)C=C ZTWTYVWXUKTLCP-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
- B41N3/00—Preparing for use and conserving printing surfaces
- B41N3/08—Damping; Neutralising or similar differentiation treatments for lithographic printing formes; Gumming or finishing solutions, fountain solutions, correction or deletion fluids, or on-press development
Definitions
- Offset printing plates generally consist of a layer support on which a radiation-sensitive reproduction layer is applied, with the aid of which an image is photomechanically generated from a template. After the printing form has been produced, the layer support carries the color-bearing image areas during later printing and at the same time forms the water-bearing image background in the non-image areas (non-image areas).
- an aqueous dampening solution is generally applied to the plate surface during the printing process.
- the dampening solution is applied to the plate by one or more rollers.
- At least one ink roller which is covered with an oil-based ink, contacts the entire surface of the plate, but only colors the hydrophobic image areas because of the oil-repellent properties of the non-image areas.
- the dampening solution and at least part of the oil-based ink can be applied to the plate simultaneously with a roller.
- Agents such as gum arabic, glycerol and the like for hydrophilization have long been known, which usually contain additions of phosphates, citrates or corresponding acids, which act as buffers and set the pH range of 4.5 and 6, which is particularly favorable for offset printing.
- the natural product gum arabic fluctuates in quality and, as a component in dampening solutions, leads to excessive emulsification of the printing ink, which results in uneven coloring of the printing plate.
- EP-A-0091601 describes a dampening solution which contains water-miscible or water-soluble polymers instead of the isopropanol also used, cellulose ethers, polyacrylamides, polyvinyl alcohols or chemically modified rubber products being used in particular.
- US-A-4186250 describes mixtures of polyacrylamides with polycarboxylic acids or their alkali metal salts. Such solutions have the same shortcomings as have already been described for the polymers.
- US-A-4374036 describes a dampening solution which contains polyphosphates, water-soluble polyethylene glycols, carboxymethyl cellulose, nonionic or anionic surfactants of the alkyl orthophosphate and alkyl polyphosphate type and a polysiloxane.
- a disadvantage is the inadequate hydrolysis stability of polyphosphates, so that work must be carried out in the neutral range, although in practice pH values around 5 have proven to be better.
- Moisturizing solutions for offset printing which contain aminomethylenephosphonic acid and / or their derivatives, have already been proposed.
- the present invention relates to an aqueous dampening solution for the offset printing process, which is characterized in that the solution is a hydrolyzate of a compound of the general formula (I) wherein R1 and R2 are the same or different from each other and represent hydrogen, an alkyl radical with 1 to 9 carbon atoms or an aryl radical with 6 to 12 carbon atoms, or contains condensates of this hydrolyzate.
- R1 and R2 are the same or different from each other and represent hydrogen, an alkyl radical with 1 to 9 carbon atoms or an aryl radical with 6 to 12 carbon atoms, or contains condensates of this hydrolyzate.
- the compounds of the general formula (I) can also be present, at least in part, in the form of their salts, and additionally contain a buffer system, a biocide, a corrosion inhibitor, glycol and / or alcohol.
- the dampening solution can be in the form of a concentrate, which may contain 0.01 to 100 g / l of the compound of the general formula (I).
- the pH of the dampening solution is expediently in the range between 3.0 and 7.0, preferably between 4.0 and 5.5.
- the hydrophilization of the non-image areas of the printing plate is renewed during the offset printing process, whereby toning is prevented until the end of the printing process.
- a particular advantage of the moistening solution according to the invention is that disturbances caused by hard water or cations which have been introduced are prevented.
- Another important advantage of the dampening solution according to the invention is that the compound of the general formula (I), in particular [2- (trihydroxysilyl) ethyl] phosphonic acid and its salts, are easily accessible from inexpensive raw materials and can be prepared in a constant quality and also in higher concentrations can be used.
- Silanes of the general formula (I), e.g. [2- (trialkoxysilyl) ethyl] phosphonic acid dimethyl ester or [2- (trialkoxysilyl) ethyl] phosphonic acid diethyl ester such as e.g. the [2- (trimethoxysilyl) ethyl] phosphonic acid dimethyl ester or diethyl ester can be prepared in a conventional manner, e.g. as described in US-PS 3780127 and US-PS 3816550, in conc. Hydrochloric acid can be hydrolyzed. After removing excess hydrochloric acid, the product obtained in this way can be diluted with water.
- condensates can also form during hydrolysis.
- hydrolyzates and condensates as well as mixtures of hydrolyzates and condensates of the compounds of general formula (I) can be used according to the invention for the dampening solution, as long as it is ensured that the hydrolyzates or their condensates are completely dissolved or homogeneous in aqueous or alcoholic / aqueous solution are distributed.
- Suitable salts of the hydrolysates are their alkali and alkaline earth salts, in particular their Na+, K+ and NH4+ salts.
- the hydrolyzates and / or their condensates or their salts are generally present in the dampening solution according to the invention in amounts of 0.01 to 10, preferably 0.1 to 2% by weight, based on the total amount of the dampening solution.
- the pH of the dampening solution is expediently adjusted to a pH between 3 and 7, preferably between 4 and 5.5.
- the dampening solution according to the invention can also be stored in the form of a concentrate which contains up to 100 g / l of hydrolyzate of a compound of the general formula (I), its condensate or salts, and, if appropriate, the additives mentioned above.
- dampening solution according to the invention it is possible to maintain the hydrophilicity and thus the water-carrying properties of the non-image areas during the printing process, without sticky deposits and disturbances caused thereby, for example when using high-molecular compounds.
- An electrolytically roughened and anodized aluminum plate is immersed in the dampening solution to be tested and then dried.
- the entire plate is then printed with offset ink in a sample printing device. After the ink has dried somewhat, the plate is again placed in the dampening solution and the time taken for the printing ink to detach from the plate. The faster this happens, the better the humectant works.
- Example 2 The experiment described in Example 2 was repeated with the change that this time no [2- (trihydroxysilyl) ethyl] phosphonic acid was added to the solution. The color only came off the plate after several hours.
Landscapes
- Printing Plates And Materials Therefor (AREA)
Claims (8)
2. Solution de mouillage selon la revendication 1, caractérisée en ce que la solution contient un hydrolysat d'un composé de formule générale I dans laquelle R¹ et R² représentent l'hydrogène.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3744121 | 1987-12-24 | ||
DE19873744121 DE3744121A1 (de) | 1987-12-24 | 1987-12-24 | Befeuchtungsloesung fuer den offsetdruck |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0322658A1 EP0322658A1 (fr) | 1989-07-05 |
EP0322658B1 true EP0322658B1 (fr) | 1991-08-07 |
Family
ID=6343621
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88120958A Expired - Lifetime EP0322658B1 (fr) | 1987-12-24 | 1988-12-15 | Solution de mouillage pour impression offset |
Country Status (6)
Country | Link |
---|---|
US (1) | US4970138A (fr) |
EP (1) | EP0322658B1 (fr) |
JP (1) | JPH01204793A (fr) |
DE (2) | DE3744121A1 (fr) |
ES (1) | ES2023482B3 (fr) |
FI (1) | FI885921A (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2673586B2 (ja) * | 1989-08-02 | 1997-11-05 | 富士写真フイルム株式会社 | 平版印刷版用湿し水組成物,それに使用する濃縮液及びそれを使用する平版印刷方法 |
DE19500253A1 (de) * | 1995-01-05 | 1996-07-11 | Wacker Chemie Gmbh | Phosphorhaltige Organosiliciumverbindungen |
JP2005178238A (ja) * | 2003-12-22 | 2005-07-07 | Konica Minolta Medical & Graphic Inc | 印刷方法とそれに用いる印刷版材料 |
JP5927746B2 (ja) * | 2012-06-29 | 2016-06-01 | 日油株式会社 | 平版印刷版用湿潤剤 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA592213A (en) * | 1960-02-09 | G. Linville Robert | Organophosphorus-silicon compositions | |
FR1310278A (fr) * | 1961-01-13 | 1963-03-06 | ||
LU55826A1 (fr) * | 1967-04-19 | 1969-11-13 | ||
US4084951A (en) * | 1971-05-03 | 1978-04-18 | Ciba-Geigy Ag | Silicon compounds containing nucleofugal phosphate group and method of regulating plant growth therewith |
US3780127A (en) * | 1972-10-02 | 1973-12-18 | Union Carbide Corp | Catalytic process for dehydration of alcohols |
US3816550A (en) * | 1972-10-02 | 1974-06-11 | Union Carbide Corp | Catalytic process for hydration of olefins |
NL7606078A (nl) * | 1975-06-12 | 1976-12-14 | Dow Chemical Co | Werkwijze voor het bereiden van een bevochti- gingsoplossing voor lithografische drukken. |
US4374036A (en) * | 1980-04-16 | 1983-02-15 | Michael A. Canale | Composition and concentrate useful for making a fountain solution for lithographic printing operations |
CA1228204A (fr) * | 1982-03-29 | 1987-10-20 | Richard J. Burns | Solution d'encrage |
DE3538703A1 (de) * | 1985-10-31 | 1987-05-07 | Hoechst Ag | Befeuchtungsloesung fuer den offsetdruck |
US4772408A (en) * | 1987-05-06 | 1988-09-20 | First Brands Corporation | Silicate-containing antifreeze with phosphonate silane stabilizer |
-
1987
- 1987-12-24 DE DE19873744121 patent/DE3744121A1/de not_active Withdrawn
-
1988
- 1988-12-14 US US07/284,243 patent/US4970138A/en not_active Expired - Fee Related
- 1988-12-15 DE DE8888120958T patent/DE3864134D1/de not_active Expired - Lifetime
- 1988-12-15 ES ES88120958T patent/ES2023482B3/es not_active Expired - Lifetime
- 1988-12-15 EP EP88120958A patent/EP0322658B1/fr not_active Expired - Lifetime
- 1988-12-21 FI FI885921A patent/FI885921A/fi not_active Application Discontinuation
- 1988-12-23 JP JP63323842A patent/JPH01204793A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
FI885921A (fi) | 1989-06-25 |
DE3744121A1 (de) | 1989-07-06 |
EP0322658A1 (fr) | 1989-07-05 |
ES2023482B3 (es) | 1992-01-16 |
US4970138A (en) | 1990-11-13 |
DE3864134D1 (de) | 1991-09-12 |
JPH01204793A (ja) | 1989-08-17 |
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