CA2075045A1 - Additive and concentrate for damping water for lithographic printing - Google Patents
Additive and concentrate for damping water for lithographic printingInfo
- Publication number
- CA2075045A1 CA2075045A1 CA 2075045 CA2075045A CA2075045A1 CA 2075045 A1 CA2075045 A1 CA 2075045A1 CA 2075045 CA2075045 CA 2075045 CA 2075045 A CA2075045 A CA 2075045A CA 2075045 A1 CA2075045 A1 CA 2075045A1
- Authority
- CA
- Canada
- Prior art keywords
- water
- additive
- damping water
- damping
- concentrate
- 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.)
- Abandoned
Links
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
Landscapes
- Printing Plates And Materials Therefor (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
An additive for damping water which is composed of a water-soluble glycol monoalkyl ether and a small amount of nonionic surface active agent having a fluoroalkyl group.
This additive yields the equivalent FSE (fountain solution efficiency), value that isopropyl alcohol yields.
An additive for damping water which is composed of a water-soluble glycol monoalkyl ether and a small amount of nonionic surface active agent having a fluoroalkyl group.
This additive yields the equivalent FSE (fountain solution efficiency), value that isopropyl alcohol yields.
Description
:: 207~
DESCRIPTION
ADDITIVE AND CONCENTRATE FOR DAMPING WATER
FOR LITHOGRAPHIC PRINTING
1. Technical Field The present invention relates to an additive to be added -to damping water or damping water concentrate and also relates to a damping water concentrate containing such an additlve, said damping water being used for litho-graphlc printing (usually offset printing). More particu-larly, the present invention relates to an additive for damplng water and also to a damping water concentrate con-talning such an additlve, sald additive being capable of superseding lsopropyl alcohol (IPA) which has conven-tlonally been ln use as an additlve for damplng water.
The term "damping water concentrate" as used in thls speci~`ication is defined as a liquid which is dlluted twlce or more with water to prepare damplng water (to be fed to the printing plate). In the following descriptlon, the amount for formulation is expressed by weight unless otherwise indlcated.
DESCRIPTION
ADDITIVE AND CONCENTRATE FOR DAMPING WATER
FOR LITHOGRAPHIC PRINTING
1. Technical Field The present invention relates to an additive to be added -to damping water or damping water concentrate and also relates to a damping water concentrate containing such an additlve, said damping water being used for litho-graphlc printing (usually offset printing). More particu-larly, the present invention relates to an additive for damplng water and also to a damping water concentrate con-talning such an additlve, sald additive being capable of superseding lsopropyl alcohol (IPA) which has conven-tlonally been ln use as an additlve for damplng water.
The term "damping water concentrate" as used in thls speci~`ication is defined as a liquid which is dlluted twlce or more with water to prepare damplng water (to be fed to the printing plate). In the following descriptlon, the amount for formulation is expressed by weight unless otherwise indlcated.
2. Background Art Lithographic printing is a system of printing which ls based on the prlnclple that water and oll are substan-tially immiscible with each other. It utilizes a printing _ L _ 2a~
plate which is made of an image area (or a lipophilic part (or an ink receptive part) which repels water but accep-ts oily ink) and a non-image area (or a hydrophilic part (or a water receptive part) which accepts water but repels oily ink).
In lithographlc printing, the printing plate is supplied with water which is customarily called damping water. It is necessary that damping water be fed to the printing plate in adequate proportion to ink so that it is uniformly distributed to the wa-ter receptive part and ink receptive part.
An excess supply of damping water brings about the emulsification of ink. Conversely, a short supply of damping water causes the non-image area to attract ink, resulting in scumming, because of its insufficient hydro-philicity. Either cases are damaging to printing quality.
Damping water serves to prevent the scumming which would otherwise occur during princing. The damping water concentrate which has been in common use is an aqueous solution containing chromate and phosphoric acid (or phosphate) and having an adequate viscosity adjusted with gum arabic or methyl cellulose.
Continued improvement is being made on the damping water supply unit in order to meet the recent requirements 2~7~
for higher printing quality and speed and be-tter workabil-ity. However, the improvement has not yet reached the stage at which no skill is required to feed damping water to the printing plate in adequate proportion to ink.
Therefore, it is common practice to prepare damping water by incorporating a damping water concentrate with 20-25%
of IPA. The thus prepared damping water readily wets the non-image area and facilitates the balanced supplies of ink and damping water. In addition, it reduces the emul-sification of ink into damping water. This leads to the improvement of printing quality, printing speed, and workability.
The damping water containing IPA has a disadvantage that its use is restricted according to the Industrial Safety and Health Law (regulation for the prevention of poisoning by organic solvents) and the Fire Service Law (handling of hazardous substances). The Industrial Safety and Health Law is applicable to damping water containing more than 5% of IPA. With an IPA content less than 5%, damping water is hardly effective in the improvement of printing quality. The Fire Service Law is applicable to the storage and handling of IPA (which is designated as the fourth class petroleum and alcohol). Another disad-vantage of IP~ is its high volatility, which makes it necessary to provide the damping water supply unit with an 207-~O~S
evaporation preventing means. In addition, IPA is expen-sive and bad-smelling.
Attempts have been made to produce the desired eEfect without adding IPA to the damping water concentrate. They include the use of a surface active agent -to reduce the surface tension of water and the use of a paste or water-soluble resin to increase the viscosity of water. (See Japanese Patent Publication ~o. 25075/1980 and Japanese Patent Laid-open Nos. 176280/1983 and 134293/1988.) Unfortunately, the damping water poses the following problems if it is prepared from a damping water concen-trate containing no IPA.
(1) Fill-in of dots in the image area.
(2) Scumming of the non-image area.
plate which is made of an image area (or a lipophilic part (or an ink receptive part) which repels water but accep-ts oily ink) and a non-image area (or a hydrophilic part (or a water receptive part) which accepts water but repels oily ink).
In lithographlc printing, the printing plate is supplied with water which is customarily called damping water. It is necessary that damping water be fed to the printing plate in adequate proportion to ink so that it is uniformly distributed to the wa-ter receptive part and ink receptive part.
An excess supply of damping water brings about the emulsification of ink. Conversely, a short supply of damping water causes the non-image area to attract ink, resulting in scumming, because of its insufficient hydro-philicity. Either cases are damaging to printing quality.
Damping water serves to prevent the scumming which would otherwise occur during princing. The damping water concentrate which has been in common use is an aqueous solution containing chromate and phosphoric acid (or phosphate) and having an adequate viscosity adjusted with gum arabic or methyl cellulose.
Continued improvement is being made on the damping water supply unit in order to meet the recent requirements 2~7~
for higher printing quality and speed and be-tter workabil-ity. However, the improvement has not yet reached the stage at which no skill is required to feed damping water to the printing plate in adequate proportion to ink.
Therefore, it is common practice to prepare damping water by incorporating a damping water concentrate with 20-25%
of IPA. The thus prepared damping water readily wets the non-image area and facilitates the balanced supplies of ink and damping water. In addition, it reduces the emul-sification of ink into damping water. This leads to the improvement of printing quality, printing speed, and workability.
The damping water containing IPA has a disadvantage that its use is restricted according to the Industrial Safety and Health Law (regulation for the prevention of poisoning by organic solvents) and the Fire Service Law (handling of hazardous substances). The Industrial Safety and Health Law is applicable to damping water containing more than 5% of IPA. With an IPA content less than 5%, damping water is hardly effective in the improvement of printing quality. The Fire Service Law is applicable to the storage and handling of IPA (which is designated as the fourth class petroleum and alcohol). Another disad-vantage of IP~ is its high volatility, which makes it necessary to provide the damping water supply unit with an 207-~O~S
evaporation preventing means. In addition, IPA is expen-sive and bad-smelling.
Attempts have been made to produce the desired eEfect without adding IPA to the damping water concentrate. They include the use of a surface active agent -to reduce the surface tension of water and the use of a paste or water-soluble resin to increase the viscosity of water. (See Japanese Patent Publication ~o. 25075/1980 and Japanese Patent Laid-open Nos. 176280/1983 and 134293/1988.) Unfortunately, the damping water poses the following problems if it is prepared from a damping water concen-trate containing no IPA.
(1) Fill-in of dots in the image area.
(2) Scumming of the non-image area.
(3) Excessive emulsification of ink by the surface active agent.
(4) Foaming by the surface active agent.
The improvement of workability by the addition of 20-25% of IPA to water was lnvestigated by R. Bssemir of Sun Chemicals, Inc. He reported tha-t I~A reduces the surface tension of water as well as increases-the viscosity of water. He also proposed the fountain solution efficiency (FSE) as the function required of damping water. FSE is defined by the equation below, assuming that the surface tension of water is 73 (dyn-cm~') and the viscosity of ~7~
water is 1.0 (cP).
~ SE = 73 - Ft/Fv (where F~ denotes the surface tension of damping water and F,, denotes the viscosity of damping water.) The value of FSE should be greater than ~0.
3. Disclosure of the In~ention An object of the present invention is to provide an additive for damping water and a damping water concentrate con-taining said additive. The additive supersedes IPA and imparts the necessary performance to damping wa-ter as IPA does.
The first aspect of the present invention resides in an additive for damping water for lithographic printi.ng, said additive comprising a water-soluble glycol monoalkyl ether selected from the group consisting of di- or tri-ethylene glycol monoalkyl ethers and di- or tri-propylene glycol monoalkyl ethers, and a nonionic surface active agent having a fluoroalkyl group.
The second aspect of the present invention resides in a damping water concentrate for damping water which con-tains said additi~e in an amount equal to ~0-80 wt%.
The third aspect of the present invention resides in a process for preparing damping water for lithographic printing which comprises adding said additive to a commer-cial damping water concentrate.
2~7`5~
The present invention produces the effect of obviat-ing the necesslty of IPA without poslng problems in litho-graphic printing associated with the fill-in of dots in the image area, the scumming of non-image area, the exces-sive emulsification of ink by the surface active agent, and the foaming by the surface active aqent.
. Best Mode for Carrying Out the Invention (I) There are no specific restrictions on the water-soluble monoalkyl ether that can be used in the present invention, so long as it meets the requirements set forth in the claim. The typical examples include the following.
Diethylene glycol monoethyl, butyl, isobutyl, propyl, or isopropyl ether.
o Triethylene glycol monomethy, ethyl, butyl, or isobu-tyl ether.
Propylene glycol monoethyl, butyl, isobutyl, propyl, or isopropyl ether.
Dipropylene glycol monomethyl, ethyl, butyl, or iso-butyl ether.
There are no specific restrictions on the nonionic surface active agent that can be used in the present invention. Those which are represented by the formula below are preferable.
C8Fl7S2N~C2H4O~nH (n = 10-20) R
2075~
(where R denotes hydrogen or a Cl~ alkyl group.) Examples of the nonionic surface actlve agent include "Surflon S-145" made by Asahi Glass Co., Ltd. and "Florad FC-170" made by Sumitomo 3M Co., Ltd.
The nonionic surface active agent having a fluoro-alkyl group lowers the surface tension of damping wa-ter even with a very small amount, without causing -the emulsi-fication of ink. It should be used in an amount of 0.1-1.0 part for 100 parts of glycol monoalkyl ester. With an amount less than 0.1 part, it does not lower sufficlently the surface tension of damping water. With an amount in excess of 1.0 part, it is liable to cause the emulsifica-tion of ink.
The additive for damping water, which is composed of the above-mentioned glycol monoalkyl ether and specific nonionic surface active agent, is added to a commercial damping water concentrate which is diluted afterward to prepare damping water. The amount of the additive should be 1.5-2.0% or more, which is enough for the FSE value to be not less than 40. Although there are no upper limits, an amount of 4.0-5.0~ will be enough. An excess amount produces no additional effect but poses problems associat-ed with anomalous emulsification. It was confirmed by the present inventors that the additive for damping water is as effective as IPA (in terms of FSE) with one-fourth to ~0750~5 one-tenth the amount of IPA.
The addltive for damping water can also be used as one component of damping water. In this case, it should be used in an amount of ~0-80~, preferably 45-60%. With an amount less than 40%, it does not yield an FSE value not less than 40. With an amount in excess of 80%, it dose not yield an FSE value not less than 40 because it decreases the solubility of the desensitizing component.
Table 3 shows an example of the damping water concentrate pertaining to the present invention.
Examples To evaluate the effect of the additivespertaining to the present invention, they were adcled to pure water and the resulting solutions were tested for surface tension and viscosity and the FSE values were calculated from them. The results are shown in Table 1. It is noted from Table 1 that an amount o 1.5-2.0% is enough to yield FSE
values greater than 40.
To evaluate the effect of the damping water concen-trates formulated as shown in Table 2, it was added to pure water and the resulting solutions were tested Eor surface tension and viscosity and the FSE values were calculated from them. The results are shown in Table 3.
It is noted that it is possible to relatively reduce the amount of the additive for damping water (glycol 2~SO~
monoalkyl ether incorporated with a nonionic surface active agent) by making a proper selection `of other agents Eor the damping water concentrate. In other words, an amount of 0.5% in terms of glycol monoalkyl ether (or an amount of 1% in terms of loads) for pure water is enough to yield FSE values greater than 40.
The abbreviations used in the tables stand for the ~ollowing compounds.
PG-MPE : propylene glycol monopropyl ether DEG-MBE : diethylene glycol monobutyl ether DEG-MIBE : diethylene glycol monoisobutyl e-ther TEG-MBE : triethylene glycol monobutyl ether 207;5~5 Table 1 _ _ Amount Surface Viscosi- FSE
added tension ty (cP) (%)(dyn/cm ) _ Pure water 0.073.00 1.000 0.00 _ PG-MBE (*) 1.045.09 1.158 34.06 2.037 41 1.178 41.24 3.0 34.65 1.188 43.83 4.0 31.51 1.317 49.07 5.0 27.91 1.366 52.57 DEG-MBE (*) 1.0 41.41 1.048 33.49 1.6 34.57 1.076 40.87 _ 3.0 29.76 1.171 47.59 4.0 26.86 1.200 50.62 5.0 25.71 1.286 53.01 _ _ DEG-MIBE (*) 1.0 41.51 1.072 34.28 __ 1.6 34.35 1.135 42.74 3.0 29.49 1.189 48.20 _ _ _ 4.026.81 _1.24351.43 5.025.671.297 53.21 _.
TEG-MBE (*) 1.0 40.291.086 35.20 2.0 35.641.10540.75 _ 3.0 31.701.17546.02 _ 4.0 29.731.232_ 48.87 5 0 26 511.25451.86 ~ _ .
* used in addition with 0.5% of "Surflon S-145".
2~75~
Table 2 DEG-MBE 500 parts _ Tributyl phosphate 3 0 "Surflon S-145" 2.0 Ethylene oxide-propyl- 15.0 ene oxide copolymer _ PEG 400 _ _ 30.0 Phytic acid 16.0 Citric acid 16.0 Ammonium nitrate24.0 Monoethanolamine15.0 Antiseptic 10.0 Acetylated starch6.0 Water 363.0 __ Total 1000.0 .
~075~
Table 3 Amount Surface Viscosity FSE
added tension (cP) _ (%)(dyn/cm) _ 0.6 37.36 1.10 39.04 __ 1.2 ~ 36.24 1.13 40.93 2.0 30.82 1.17 46.66 3.0 27.83 1.22 50.19 4.0 25.22 1.26 52.98 _ _ 5.0 23.16 _ 1.32 55.45
The improvement of workability by the addition of 20-25% of IPA to water was lnvestigated by R. Bssemir of Sun Chemicals, Inc. He reported tha-t I~A reduces the surface tension of water as well as increases-the viscosity of water. He also proposed the fountain solution efficiency (FSE) as the function required of damping water. FSE is defined by the equation below, assuming that the surface tension of water is 73 (dyn-cm~') and the viscosity of ~7~
water is 1.0 (cP).
~ SE = 73 - Ft/Fv (where F~ denotes the surface tension of damping water and F,, denotes the viscosity of damping water.) The value of FSE should be greater than ~0.
3. Disclosure of the In~ention An object of the present invention is to provide an additive for damping water and a damping water concentrate con-taining said additive. The additive supersedes IPA and imparts the necessary performance to damping wa-ter as IPA does.
The first aspect of the present invention resides in an additive for damping water for lithographic printi.ng, said additive comprising a water-soluble glycol monoalkyl ether selected from the group consisting of di- or tri-ethylene glycol monoalkyl ethers and di- or tri-propylene glycol monoalkyl ethers, and a nonionic surface active agent having a fluoroalkyl group.
The second aspect of the present invention resides in a damping water concentrate for damping water which con-tains said additi~e in an amount equal to ~0-80 wt%.
The third aspect of the present invention resides in a process for preparing damping water for lithographic printing which comprises adding said additive to a commer-cial damping water concentrate.
2~7`5~
The present invention produces the effect of obviat-ing the necesslty of IPA without poslng problems in litho-graphic printing associated with the fill-in of dots in the image area, the scumming of non-image area, the exces-sive emulsification of ink by the surface active agent, and the foaming by the surface active aqent.
. Best Mode for Carrying Out the Invention (I) There are no specific restrictions on the water-soluble monoalkyl ether that can be used in the present invention, so long as it meets the requirements set forth in the claim. The typical examples include the following.
Diethylene glycol monoethyl, butyl, isobutyl, propyl, or isopropyl ether.
o Triethylene glycol monomethy, ethyl, butyl, or isobu-tyl ether.
Propylene glycol monoethyl, butyl, isobutyl, propyl, or isopropyl ether.
Dipropylene glycol monomethyl, ethyl, butyl, or iso-butyl ether.
There are no specific restrictions on the nonionic surface active agent that can be used in the present invention. Those which are represented by the formula below are preferable.
C8Fl7S2N~C2H4O~nH (n = 10-20) R
2075~
(where R denotes hydrogen or a Cl~ alkyl group.) Examples of the nonionic surface actlve agent include "Surflon S-145" made by Asahi Glass Co., Ltd. and "Florad FC-170" made by Sumitomo 3M Co., Ltd.
The nonionic surface active agent having a fluoro-alkyl group lowers the surface tension of damping wa-ter even with a very small amount, without causing -the emulsi-fication of ink. It should be used in an amount of 0.1-1.0 part for 100 parts of glycol monoalkyl ester. With an amount less than 0.1 part, it does not lower sufficlently the surface tension of damping water. With an amount in excess of 1.0 part, it is liable to cause the emulsifica-tion of ink.
The additive for damping water, which is composed of the above-mentioned glycol monoalkyl ether and specific nonionic surface active agent, is added to a commercial damping water concentrate which is diluted afterward to prepare damping water. The amount of the additive should be 1.5-2.0% or more, which is enough for the FSE value to be not less than 40. Although there are no upper limits, an amount of 4.0-5.0~ will be enough. An excess amount produces no additional effect but poses problems associat-ed with anomalous emulsification. It was confirmed by the present inventors that the additive for damping water is as effective as IPA (in terms of FSE) with one-fourth to ~0750~5 one-tenth the amount of IPA.
The addltive for damping water can also be used as one component of damping water. In this case, it should be used in an amount of ~0-80~, preferably 45-60%. With an amount less than 40%, it does not yield an FSE value not less than 40. With an amount in excess of 80%, it dose not yield an FSE value not less than 40 because it decreases the solubility of the desensitizing component.
Table 3 shows an example of the damping water concentrate pertaining to the present invention.
Examples To evaluate the effect of the additivespertaining to the present invention, they were adcled to pure water and the resulting solutions were tested for surface tension and viscosity and the FSE values were calculated from them. The results are shown in Table 1. It is noted from Table 1 that an amount o 1.5-2.0% is enough to yield FSE
values greater than 40.
To evaluate the effect of the damping water concen-trates formulated as shown in Table 2, it was added to pure water and the resulting solutions were tested Eor surface tension and viscosity and the FSE values were calculated from them. The results are shown in Table 3.
It is noted that it is possible to relatively reduce the amount of the additive for damping water (glycol 2~SO~
monoalkyl ether incorporated with a nonionic surface active agent) by making a proper selection `of other agents Eor the damping water concentrate. In other words, an amount of 0.5% in terms of glycol monoalkyl ether (or an amount of 1% in terms of loads) for pure water is enough to yield FSE values greater than 40.
The abbreviations used in the tables stand for the ~ollowing compounds.
PG-MPE : propylene glycol monopropyl ether DEG-MBE : diethylene glycol monobutyl ether DEG-MIBE : diethylene glycol monoisobutyl e-ther TEG-MBE : triethylene glycol monobutyl ether 207;5~5 Table 1 _ _ Amount Surface Viscosi- FSE
added tension ty (cP) (%)(dyn/cm ) _ Pure water 0.073.00 1.000 0.00 _ PG-MBE (*) 1.045.09 1.158 34.06 2.037 41 1.178 41.24 3.0 34.65 1.188 43.83 4.0 31.51 1.317 49.07 5.0 27.91 1.366 52.57 DEG-MBE (*) 1.0 41.41 1.048 33.49 1.6 34.57 1.076 40.87 _ 3.0 29.76 1.171 47.59 4.0 26.86 1.200 50.62 5.0 25.71 1.286 53.01 _ _ DEG-MIBE (*) 1.0 41.51 1.072 34.28 __ 1.6 34.35 1.135 42.74 3.0 29.49 1.189 48.20 _ _ _ 4.026.81 _1.24351.43 5.025.671.297 53.21 _.
TEG-MBE (*) 1.0 40.291.086 35.20 2.0 35.641.10540.75 _ 3.0 31.701.17546.02 _ 4.0 29.731.232_ 48.87 5 0 26 511.25451.86 ~ _ .
* used in addition with 0.5% of "Surflon S-145".
2~75~
Table 2 DEG-MBE 500 parts _ Tributyl phosphate 3 0 "Surflon S-145" 2.0 Ethylene oxide-propyl- 15.0 ene oxide copolymer _ PEG 400 _ _ 30.0 Phytic acid 16.0 Citric acid 16.0 Ammonium nitrate24.0 Monoethanolamine15.0 Antiseptic 10.0 Acetylated starch6.0 Water 363.0 __ Total 1000.0 .
~075~
Table 3 Amount Surface Viscosity FSE
added tension (cP) _ (%)(dyn/cm) _ 0.6 37.36 1.10 39.04 __ 1.2 ~ 36.24 1.13 40.93 2.0 30.82 1.17 46.66 3.0 27.83 1.22 50.19 4.0 25.22 1.26 52.98 _ _ 5.0 23.16 _ 1.32 55.45
Claims (5)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. An additive for damping water for lithographic printing, said additive comprising a water-soluble glycol monoalkyl ether selected from the group consisting of di-or tri-ethylene glycol monoalkyl ether and di- or tri-propylene glycol monoalkyl ether, and a nonionic surface active agent having a fluoroalkyl group.
2. An additive for damping water for lithographic printing as set forth in Claim 1, wherein the nonionic surface active agent is one which is represented by the formula below.
(n = 10-20) (where R denotes hydrogen or a C14 alkyl group.)
(n = 10-20) (where R denotes hydrogen or a C14 alkyl group.)
3. An additive for damping water for lithographic printing defined in Claim 1, wherein the nonionic surface active agent is used in an amount of 0.1-10 parts by weight for 100 parts by weight of the glycol monoalkyl ether.
4. A damping water concentrate for lithographic printing which contains the additive defined in Claim 1 in an amount of 40-80 wt%.
5. A process for preparing damping water for litho-graphic printing which comprises adding the additive de-fined in Claim 1 to a commercial damping water concentrate.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2-401202 | 1990-12-11 | ||
| JP40120290A JPH06206391A (en) | 1990-12-11 | 1990-12-11 | Additive for dampening water of lithographic printing form plate and stock solution of dampening water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2075045A1 true CA2075045A1 (en) | 1992-06-12 |
Family
ID=18511052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2075045 Abandoned CA2075045A1 (en) | 1990-12-11 | 1991-12-04 | Additive and concentrate for damping water for lithographic printing |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0514556A4 (en) |
| JP (1) | JPH06206391A (en) |
| CA (1) | CA2075045A1 (en) |
| WO (1) | WO1992010368A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6458510B1 (en) | 1999-02-02 | 2002-10-01 | Agfa-Gevaert | Method for making positive working printing plates |
| EP1025991B1 (en) * | 1999-02-02 | 2003-07-23 | Agfa-Gevaert | A method for making positive working printing plates |
| CN103660667B (en) * | 2013-11-18 | 2016-04-13 | 蚌埠市英路光电有限公司 | A kind of business wheel turns fountain solution and preparation method thereof |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5525075B2 (en) * | 1972-05-18 | 1980-07-03 | ||
| NL7606078A (en) * | 1975-06-12 | 1976-12-14 | Dow Chemical Co | PROCEDURE FOR PREPARING A WETTING SOLUTION FOR LITHOGRAPHIC PRESSURES. |
| CA1228204A (en) * | 1982-03-29 | 1987-10-20 | Richard J. Burns | Fountain solution |
| JPS62234992A (en) * | 1986-04-07 | 1987-10-15 | Fuji Photo Film Co Ltd | Treatment solution for planographic printing |
| JPS63134293A (en) * | 1986-11-27 | 1988-06-06 | Fuji Photo Film Co Ltd | Desensitizer for lithographic printing plate |
| JPH02209294A (en) * | 1989-02-10 | 1990-08-20 | Dainippon Ink & Chem Inc | Damping water concentrated solution for planographic printing |
| DE3924353A1 (en) * | 1989-07-22 | 1991-02-14 | Prufrex Elektro App | CONTROL SYSTEM FOR THE CARBURETOR OF AN INTERNAL COMBUSTION ENGINE |
| JPH0785947B2 (en) * | 1989-08-05 | 1995-09-20 | 東洋インキ製造株式会社 | Fountain solution for lithographic printing |
| JP2673604B2 (en) * | 1990-10-25 | 1997-11-05 | 富士写真フイルム株式会社 | Fountain solution composition for lithographic printing |
-
1990
- 1990-12-11 JP JP40120290A patent/JPH06206391A/en active Pending
-
1991
- 1991-12-04 WO PCT/JP1991/001693 patent/WO1992010368A1/en not_active Application Discontinuation
- 1991-12-04 EP EP19920900891 patent/EP0514556A4/en not_active Withdrawn
- 1991-12-04 CA CA 2075045 patent/CA2075045A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06206391A (en) | 1994-07-26 |
| EP0514556A1 (en) | 1992-11-25 |
| WO1992010368A1 (en) | 1992-06-25 |
| EP0514556A4 (en) | 1993-02-24 |
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