CN1189411A - Device for removing ink applied to non-printing parts on waterless planographic printing plate and planographic printing machine and method using the same - Google Patents
Device for removing ink applied to non-printing parts on waterless planographic printing plate and planographic printing machine and method using the same Download PDFInfo
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- CN1189411A CN1189411A CN97100436A CN97100436A CN1189411A CN 1189411 A CN1189411 A CN 1189411A CN 97100436 A CN97100436 A CN 97100436A CN 97100436 A CN97100436 A CN 97100436A CN 1189411 A CN1189411 A CN 1189411A
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Abstract
Printing ink attached to non-printing parts on a waterless planographic printing plate can be removed by bringing a rotary roller having a circumferential adhesive surface coated with viscous ink having higher viscosity than that of the printing ink applied to the printing plate into contact with the printing plate in rotation. The viscous ink applied to the rotary roller is higher in viscosity than the printing ink applied to the printing plate for printing. So that the ink transferred from the printing plate to the rotary roller can be steadily captured, thus completely wipe off the unnessary printing ink attached to the non-printing parts on the printing plate. Consequently, clear and sharp printed matter with print images excellently reproduced can be obtained at a low cost.
Description
The present invention relates to a kind of printing ink removal device that is applied to adopt the printing machine of driography version, this device has the good function that the printing ink on the non-printing on the driography version is removed, so that can obtain to have the bright of fabulous replicated image and printed matter clearly with low cost.The invention still further relates to a kind of lithographic process that is provided with the offset press of above-mentioned printing ink removal device and utilizes this offset press.
In the actual various printing processes of adopting, the driography method is practicable beyond doubt, and therefore it is generally adopted at present.With reference to offset print illustrated in Figure 5 the driography method is done simple the argumentation below.Printing ink in the ink fountain 50 is transported on row's wavers 52 by an ink foundation roller 51, and this ink roller group 52 generally includes more than 20 wavers, so that it is thick to make the printing ink that applies continuously and be delivered on the wavers be scattered in several μ.Printing ink is further delivered to rubber cylinder 55 by plate cylinder 54, thereby is transferred on a piece of paper 57 that is placed between rubber cylinder 55 and the impression cylinder 56.
Additional disclosure, the silicon rubber that is formed on non-printing on the lithographic plate is in printing process without horizontal printing plate by ink resistance constitutes, and silicon rubber is compared to and uses its ink resistance of common lithographic plate of fountain solution poor, and be easy to by different dirty.Therefore, anhydrous lithographic printing needs to use different printing ink inevitably, will be made into thin shape by the transmission of one group of wavers by mixed uniformly printing ink.Therefore, the manufacturing complexity of this printing machine is difficult to low-cost production and maintenance.
In addition because when printing ink is rubbed repeatedly, increased temperature in wavers and when rotating plate cylinder machinery produce hot, so that wavers and forme increase in temperature in actual use.Consequently, the viscosity of printing ink becomes lower than the ink viscosity of defined unfriendly.When ink viscosity reduced, printing ink tended to the non-printing of galley is made dirty, consequently the printing ink point printed matter making dirty and finally obtained.
In addition, in not using the anhydrous lithographic printing of fountain solution, the increase that is created in the temperature on the forme when rotating plate cylinder can not be inhibited, because it does not have cooling device, and fountain solution for example.For overcoming anhydrous lithographic this deficiency, people attempt cooling water is flow through roller or blows plate cylinder with the cooling air.Therefore, print system needs expensive and complicated like this cooling device, and the result is production and the maintenance cost that has increased print system.
In order to eliminate the defective that aforesaid traditional lithographic process runs into, an object of the present invention is to provide a kind of printing ink removal device that is used for anhydrous offset press, remove attached to the Yin Mo on the non-printing of anhydrous lithographic printing-plate to use, it can make print system structurally simple and cheap, and prints out by using than the low printing ink of the ink viscosity that is used for traditional anhydrous lithographic printing-plate and with low cost and to have the bright of fabulous printing image and printed matter clearly.
Another object of the present invention provides a kind of for removing the anhydrous offset press that adopts above-mentioned printing ink removal device attached to the printing ink on the non-printing of waterless lithographic printing plate.
Another purpose of the present invention provides a kind of printing process without horizontal printing plate that uses above-mentioned anhydrous offset press.
For reaching above-mentioned purpose of the present invention, device according to the seal China ink on the non-printing that is used to remove anhydrous lithographic printing-plate provided by the present invention comprises a live-rollers with circumference adhesive surface, it contacts with anhydrous lithographic printing-plate, so that draw attached to the Yin Mo on the non-printing of anhydrous lithographic printing-plate.
On the circumference adhesive surface of live-rollers, can apply and have than attached to the high thickness printing ink of the viscosity of the seal China ink on the non-printing of anhydrous lithographic printing-plate.
Live-rollers can be made by the synthetic rubber that contains the oleophobic batching.
Anhydrous offset press according to the present invention includes above-mentioned printing ink removal device, is making live-rollers with anhydrous lithographic printing-plate contact so that draw attached to the Yin Mo non-printing of anhydrous lithographic printing-plate on when Yin Mo is delivered on the rubber cylinder putting on the forme of plate cylinder.
In the method for the invention, when being delivered to the Yin Mo on the forme that puts on plate cylinder on the rubber cylinder, be removed attached to the Yin Mo on the non-printing of forme.
Understanding according to the additional claim that maybe will show to the specific embodiment that will describe, the present invention other and further purpose will become apparent, and in actual use the of the present invention, will be found by those skilled in the art in these NM various advantages.
Fig. 1 is the schematic diagram of expression according to anhydrous offset press of the present invention.
Fig. 2 is that the explanatory view be used to remove attached to a process of the device of the seal China ink on the non-printing of anhydrous lithographic printing-plate of the present invention is made in expression;
Fig. 3 is the schematic illustration of printing process without horizontal printing plate of the present invention;
Fig. 4 is the schematic illustration of printing process without horizontal printing plate of the present invention;
Fig. 5 is the schematic diagram of the traditional anhydrous offset press of expression.
Referring to Fig. 1 to Fig. 4, an embodiment of printing ink removal device of the present invention, be used to remove Yin Mo, will be provided with the offset press of printing ink removal device and use the example of the lithographic process of its printing ink removal device that this device is described in detail with of the present invention below attached on the non-printing of anhydrous lithographic printing-plate.
Printing ink removal device 1 comprises a roller 2 as shown in Figure 2.Roller 2 is supported by a rotating in vertical direction turning cylinder 5 of angle from end face 4.Roller 2 is made by synthetic rubber, is rubber as nitrile, and neoprene and urethane rubber, these rubber are used for some rollers of common offset press.Roller 2 has a circumference adhesive surface 3, sponges attached to the Yin Mo on the non-printing of anhydrous lithographic printing-plate when contacting with non-printing with box lunch.
Be formed with the high thickness printing ink of the viscosity that is applied to the seal China ink on the forme that its ratio of viscosities is used for printing on the adhesive surface 3 of roller 2, the said seal China ink that is used to print will be removed by the non-printing from forme only.The viscosity of thickness printing ink be according to be used for printing be applied to Yin Mo on the anhydrous lithographic printing-plate and definite, but its viscosity number (the inkometer value is at 30 ℃, 400rpm) more preferably greater than 12.This thickness printing ink can be colour or achromatic, but its preferably non-dryness type, to keep its adhesion characteristic steadily in the long term.
These characteristics that roller 2 had can be formed by the thickness printing ink that puts on the gap location between oscillating roller 12 and the gentle rubbing roller 13, and the rotation by roller 12 and 13 is added to the 10 μ m orders of magnitude Dancheng, thickness printing ink attenuation T pod tomb, like this ink lay of thin similar film is transported to the circumferential surface 3 of roller 2, shown in Figure 2 as implementing.
As another example of the roller 2 with circumference adhesive surface 3, its roller can constitute by the oleophobic batching is added in the synthetic rubber, and its synthetic rubber for example is that nitrile is rubber, neoprene and urethane rubber.Described oleophobic batching is a vegetable oil, for example linseed oil, chinese wood oil, soya-bean oil and castor oil, according to example its as the transmission liquid that contains the seal China ink, the operation oil and the resin that obtain by vegetable oil, machine oil, spindle oil, mineral oil and light oil.The content of oleophobic preferably is defined as 50-80% with respect to its percentage by weight of synthetic rubber.The hardness that the desirable oleophobic batching that is formed roller 2 contains has is 30 or littler, preferably 20 or littler (infiltration is provided under JISK2207).
These features that roller 2 is had can utilize common mould pressing method to produce by mixing oleophobic batching and synthetic rubber.
Not only can be applicable to anhydrous lithographic printing according to printing ink removal device of the present invention, and can be applicable to use traditional lithographic printing of fountain solution.
Offset press 20 of the present invention comprises above-mentioned printing ink removal device 1, as shown in Figure 1, after this printing ink removal device 1 is encased in the printing machine, roller 2 contacts with forme on being installed in plate cylinder 25, so that sponge attached to the printing ink on the non-printing of forme when being sent to the Yin Mo that is applied to the forme place on the plate cylinder 25 on the rubber cylinder 26 continuously.Printing ink removal device 1 can be driven by the rotation of plate cylinder 25, or automatically operates with plate cylinder 25.
The size that is encased in the printing ink removal device 1 in the offset press 20 depends on the size of whole print system and other peripheral components, but is generally determined that so promptly, the diameter of printing ink removal device 1 is 0.1 to 0.4 times of plate cylinder 25 diameters.
Next will describe the lithographic process that adopts above-mentioned offset press 20, this lithographic process not only can be applicable to anhydrous lithographic printing, and can be applicable to use the common lithographic printing of fountain solution.Will describe an example at this, printing process of the present invention in this example then is to be applied to anhydrous lithographic printing.
Lithographic plate seal China ink 30 in ink fountain 21 is sent to wavers 23 through distributor rollers 22.The viscosity of anhydrous planographic ink 30 is lower than the viscosity that is used for common lithographic printing-ink.For instance, wish to use the Yin Mo of viscosity number as 0.4-0.6.
Anhydrous lithographic printing is transmitted in the roller that comprises wavers 23, makes the black thickness attenuation of seal therefrom.It is because its viscosity is low that printing ink becomes thin layer easily, so the quantity of wavers 23 is compared to traditional printing machine and can be reduced, as shown in Figure 1.Because Fig. 1 has schematically shown printing machine, so the quantity of illustrated roller always is not equal to the quantity of roller of the printing machine of actual use, but the quantity of the roller in the printing machine of the present invention can reduce to traditional offset press central roll quantity half or still less.
The seal China ink 30 of the thin shape of so even one-tenth is sent to the circumferential surface of plate cylinder 25 continuously through upper inking roller 24, the rotation direction of its lithographic plate cylinder 25 is shown in the arrow among Fig. 1.At this moment, because the viscosity of seal China ink 30 is low, so forme 35 has the printing ink point (printing ink stain) that is formed on the non-printing 36, as shown in Figure 3.Subsequently, the beginning of the circumferential surface 3 of the roller 2 of printing ink removal device 1 contacts with the plate cylinder 25 of rotation on from rearmost upper inking roller 24 to rubber cylinder 26 distances.At this moment wait, the stain of the printing ink 30 on the non-printing 36 is sent on the circumferential surface 3 and by roller 2 and absorbs.Consequently, when through roller 2, be removed attached to the unwanted printing ink on the non-printing 36, and get rid of, then be retained attached to the required seal China ink on the printing 37 from the forme 35 that is installed on the plate cylinder 25.
Therefore, the seal China ink of staying on the forme 35 30 is sent on the rubber cylinder 26, and further is sent on the roll web that is 40 that is placed on rubber cylinder 26 and impression cylinder 27.Owing to there is not printing ink to be trapped on the non-printing 36, therefore image very clearly is replicated on the roll web, and finally can obtain high-quality printed matter.
The present invention will be more readily apparent from by following described experiment embodiment, and its experiment embodiment is to obtain from the experiment of finishing with method of the present invention, and the present invention never only limits to these conditions under experiment instruction.
Experiment embodiment 1:
Printing ink removal device as shown in Figure 1 is by an employed roller (diameter 6cm, long 50cm) constitutes, scribble thickness printing ink (commodity of being made by Taniguchi Ink Mfg.Co.Ltd are called " TA-MEDIVM ") on the circumferential surface of this roller, the viscosity number of described printing ink is 10.
Above-mentioned printing ink removal device is installed on the anhydrous offset press of full-automatic small size (by the printing machine of ShinoharaEngineering Co.Ltd manufacturer product " SF-A3 MODEL " by name), therefore roller forms a kind of offset press thus rotating with the rotation of plate cylinder under the state as shown in Figure 1.
Also be equipped with an anhydrous forme (by Toray Industries, the commodity that Inc. makes " WATERLESS PLATE " by name) and an anhydrous paper forme (commodity of being made by Corporative Association " PRINTECHNO " are called " PR-I-Type ") on the above-mentioned offset press.Printing is that viscosity number is that the Yin Mo (commodity of being made by Taniguchi Ink Mfg.Co.Ltd. " TA-GERANIUM " by name) of 5 anhydrous lithographic plate finishes when being used in 30 ℃.
Consequently, can obtain not have the bright of printing ink flood point and printed matter clearly, on this printed matter, copy extraordinary desirable image, even after printing 5000.
Experiment embodiment 2:
Printing machine that use is made in above-mentioned experiment embodiment 1 and viscosity number are that 5 lithographic plate seal China ink (commodity of being made by Taniguchi Ink Mfg.Co.Ltd. " TECHNOCOLOUR WATERLESS GERANIUM " by name) carries out 5000 printing, and it adopts fountain solution usually.Consequently, can obtain the printed matter that has fabulous replicability clearly without any the bright of printing ink stain, its effect is similar to experiment embodiment 1.
Experiment embodiment 3:
The printing ink removal device of making in experiment embodiment 1 is used for this experiment, is that employed roller contains the mineral oil of 60% (weight).
This printing ink removal device is installed on the printing machine that is used in the example 1, prints 5000 under the condition identical with example 1.Consequently, can obtain not have the bright of printing ink stain and the printed matter that has extraordinary replicability clearly, its effect is similar to experiment embodiment 1.
Comparative example 1:
Under the condition identical with above-mentioned experiment embodiment 1, printing is with anhydrous lithographic plate seal China ink, uses and anhydrous forme is housed (by Toray Industries, Inc. commodity of Zhi Zaoing by name " WATERLESS PLATE ") and the conventional presses (commodity of being made by Hamada Press Manufacturing Co. are called " HAMADASTAR ") of anhydrous printing paper mold (commodity of making by CorporativeAssociation ＂ PRINTECHNO ＂ " PR-I-Type " by name) finish, as shown in Figure 5.Said seal China ink sell (by the commodity that Taniguchi Ink Mf g.Co.Ltd. makes by name " TECHNOCOLOUR WATERLESS GERANIUM) and viscosity number be diluted to 5.
Consequently, even the first impression, the printed matter that is obtained also can be found out dirty version stain.
Can see significantly from foregoing, the printing ink removal device of the application of the invention, the seal China ink that is attached on the non-printing of anhydrous lithographic printing-plate can be removed fully.According to the present invention, how how this printing no matter can both finish well attached to the Yin Mo on the non-printing of forme.
In addition, the feasible Yin Mo that might use low viscosity (little viscosity number) of offset press of above-mentioned printing ink removal device is installed, this seal China ink is easy to adhere on the non-printing of forme, and up to the present this Yin Moshang is not applied to printing.Therefore, the quantity of wavers can be reduced, and for printing machine cooling device also become unnecessary.Like this, although printing ink removal device in fact of the present invention is attached on the printing machine, the printing function is made simplyr, and consequently the production of printing machine and maintenance cost can obviously reduce.
In addition, the distinctive advantage of lithographic process of the present invention is fabulous bright of formed replicability and printed matter or obtained by anhydrous lithographic printing clearly, or is obtained by the lithographic printing that adopts fountain solution.
Should be able to see easily, and those skilled in the art also will readily appreciate that, it is possible changing the invention described above embodiment, and in scope and spirit of the present invention, can make amendment and improve, therefore, should will appreciate that the present invention can't help the restriction of these specific embodiments, and just be limited within the scope and spirit of additional claim.
Claims (7)
1, a kind of printing ink removal device that is used to remove the seal China ink on the non-printing that is applied to waterless lithographic printing plate, it comprises a live-rollers with circumference adhesive surface, described live-rollers can contact with described anhydrous lithographic printing-plate, so that draws attached to the Yin Mo on the non-printing of described anhydrous lithographic printing-plate.
2, printing ink removal device according to claim 1 is characterized in that described live-rollers has the circumference adhesive surface, and this surface-coated has the high printing ink of viscosity than the seal China ink on the non-printing that is attached to described anhydrous lithographic printing-plate.
3, printing ink removal device according to claim 1 is characterized in that described live-rollers has a circumferential surface of being made by the synthetic rubber that contains the oleophobic batching.
4, a kind of anhydrous offset press, it comprises that one is used for the device of the China ink of the seal on the non-printing that is applied to the anhydrous lithographic plate that is configured in plate cylinder place removal, described device comprises a live-rollers with circumference adhesive surface, make when being applied to Yin Mo on the described forme and being delivered on the rubber cylinder, can draw attached to the Yin Mo on the described non-printing of described anhydrous lithographic printing-plate.
5, a kind of anhydrous offset press, it comprises that is used for the device that the seal China ink cloud that is applied on the non-printing of anhydrous lithographic printing-plate is removed, described device comprises a live-rollers with circumference adhesive surface, the circumference adhesive surface that described live-rollers had is coated with printing ink, this printing ink has than the high viscosity of viscosity attached to the seal China ink on the non-printing of described anhydrous lithographic printing-plate, described circumferential surface is made by the synthetic rubber that contains the oleophobic batching, described live-rollers can contact with described anhydrous lithographic printing-plate, so that can draw attached to the Yin Mo on the non-printing of anhydrous lithographic printing-plate when Yin Mo on the forme is delivered on the rubber cylinder being applied to.
6, a kind of anhydrous offset press, it comprises that one is used for the device of the China ink of the seal on the non-printing that is applied to anhydrous lithographic printing-plate removal, described device comprises a live-rollers with circumference adhesive surface, described live-rollers can contact with described anhydrous lithographic printing-plate, so that can draw attached to the Yin Mo on the described non-printing of described anhydrous lithographic printing-plate when Yin Mo on the described forme is delivered on the rubber cylinder being applied to.
7, the anhydrous offset press of a kind of use is implemented anhydrous lithographic method, this printing machine comprises that one is used for the device of the China ink of the seal on the non-printing that is applied to anhydrous lithographic printing-plate removal, described device comprises a live-rollers with circumference adhesive surface, this method comprises can contact described live-rollers with described anhydrous lithographic printing-plate, so that can draw attached to the Yin Mo on the non-printing of described anhydrous lithographic printing-plate when Yin Mo on the described forme is delivered on the rubber cylinder being applied to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97100436A CN1189411A (en) | 1997-01-31 | 1997-01-31 | Device for removing ink applied to non-printing parts on waterless planographic printing plate and planographic printing machine and method using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97100436A CN1189411A (en) | 1997-01-31 | 1997-01-31 | Device for removing ink applied to non-printing parts on waterless planographic printing plate and planographic printing machine and method using the same |
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| Publication Number | Publication Date |
|---|---|
| CN1189411A true CN1189411A (en) | 1998-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97100436A Pending CN1189411A (en) | 1997-01-31 | 1997-01-31 | Device for removing ink applied to non-printing parts on waterless planographic printing plate and planographic printing machine and method using the same |
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| CN (1) | CN1189411A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101622121B (en) * | 2007-03-09 | 2012-07-25 | Lg化学株式会社 | Method of fine patterns by intaglio printing, printing system for printing fine pattern through intaglio printing |
| CN107323068A (en) * | 2016-04-22 | 2017-11-07 | 昌原国立大学工业学院合作团 | Printing equipment and its method of operation |
| CN113805440A (en) * | 2021-08-04 | 2021-12-17 | 桐乡市凯盛印刷股份有限公司 | Lithographic plate making process |
-
1997
- 1997-01-31 CN CN97100436A patent/CN1189411A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101622121B (en) * | 2007-03-09 | 2012-07-25 | Lg化学株式会社 | Method of fine patterns by intaglio printing, printing system for printing fine pattern through intaglio printing |
| CN107323068A (en) * | 2016-04-22 | 2017-11-07 | 昌原国立大学工业学院合作团 | Printing equipment and its method of operation |
| CN107323068B (en) * | 2016-04-22 | 2019-11-15 | 昌原国立大学工业学院合作团 | Printing equipment and its method of operation |
| CN113805440A (en) * | 2021-08-04 | 2021-12-17 | 桐乡市凯盛印刷股份有限公司 | Lithographic plate making process |
| CN113805440B (en) * | 2021-08-04 | 2024-04-02 | 桐乡市凯盛印刷股份有限公司 | Printing lithographic plate making process |
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