JPH02122994A - Multicolor rotary press and multicolor printing method - Google Patents

Abstract

PURPOSE:To open hollow parts of minute hollow bodies at the position of the outer peripheral surface of an inking roller and ensure that even when the outer peripheral surface of the roller is worn at the time of removal of an excess ink by an ink- removing means, the minute hollow bodies are sequentially exposed to the peripheral surface as the wearing progresses, thereby opening the hollow parts and preventing the condition of the peripheral surface of the roller from changing by dispersing the minute hollow bodies such as microballoons uniformly in the surface of the inking roller. CONSTITUTION:Minute hollow bodies 12 such as glass balloons and a hard material powder 13 such as a ceramic powder are dispersed uniformly in an ink-receiving layer base 14 of an inking roller 1. The surface of a base member 16 is covered by the ink-receiving layer base 14 to provide an ink-receiving layer 11. At the time of removal of an excess ink by an ink-removing means 2, the outer peripheral surface of the roller 1 is gradually worn. However, the minute hollow bodies 12 dispersed substantially uniformly in the ink-receiving layer 11 are sequentially exposed to the peripheral surface of the roller 1 as the surface is worn. Therefore, the condition of the outer peripheral surface of the roller 1 remains unchanged, substantially until the ink-receiving layer 11 is completely worn out.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention relates to a rotary printing press for multicolor printing and a multicolor printing method, and more specifically, the present invention relates to a rotary printing press for multicolor printing and a multicolor printing method, and in particular, an ink removal means is brought into contact with the surface of an inking roller to remove excess or excess ink. Rotary printing press 1ii11 for multicolor printing that performs keyless ink supply by removing
[And regarding a multicolor printing method.]

(Prior Art) Keyless ink supply devices have been conventionally used in the field of flexographic printing. In other words, there is a so-called anilox roller, which is a so-called anilox roller, which has minute deep cells arranged regularly on the surface of the roller, and the excess ink other than the ink that comes into contact with the anilox roller and is taken into the cells. j with suitable ink removal means (e.g. plates or rollers) to remove the
1: Due to the same action, this is a device that attempts to supply the ink taken into the cell during the 1741 frill 4' operation to the first printing plate.

In addition, in recent years, anilox [1-
Keyless ink (J) feeding device using a printer came into use ([Latest newspaper production main equipment 1986J
, May 1986, 171 pages (t), published by the 4 Newspaper Association, page 323, left line 111122, no. 125, left column 1
2-line daily reference jjQ).

Then, to these keyless input gear IJ'-supply devices (J
14 The anilox roller to be used shall have microscopic deep cells formed by rolling or laser processing, or the surface of the surface provided with the cells described in 1171 shall be adapted as necessary. It is most commonly used to cover the limbs with material.

Furthermore, recently, multi-color printing has been performed using the keyless feeder-1 described in lrI.
For example, March 15, 1986 [1 mark 11; Published by Gakkai Publishing Department [Printed magazine March 1983 issue (Mo1.71)]
No. 3) 67 pages 34111 or 1986 6J
In the multicolor printing of 1-26-10 Tachibana-cho, Amagasaki City, Published by Printing Tsushinsha [Printing News No. 393] (see page 3), 1) "J" Printing Magazine 1988: 3J] As stated in "No. 393" and "Printing Communication No. 393",
Anilox rollers with different cell sizes were used for each ink.

(Problem to be solved by the invention: Suspension) In this way, the conventional keyless ink supply device: The conventional keyless ink supply device is equipped with the above-mentioned microscopic deep cells on the surface. Due to the joint action of the nox roller and suitable ink removal means (for example blades or rollers) which abut this roller,
This is a device that supplies the ink taken into the cells to the printing plate during printing operation. Therefore, print the statue! 111j (Thus, the front three anilox rollers and the ink removal means constantly rub against each other and wear each other out.And, in this keyless ink supply device, the anilox roller is slightly worn and the progress is delayed by t and l. The volume of the microscopic deep cells decreases, and the number of ink claws that can be supplied to the plate surface decreases, making it impossible to maintain a constant quality of the printing surface. As wear progresses, it becomes impossible to supply the necessary amount of ink to the printing plate.

Therefore, it was necessary to replace the Ani-Fuchs roller after a relatively short period of printing operation, resulting in low printing efficiency.

In addition, anilox rollers have a relatively high 1115 value because the process of forming cells is complicated and takes a lot of time. However, the problem was that the running costs were somewhat high.

Furthermore, such a conventional multicolor printing method using an anilox roller or multicolor 11 year rotary printing rji m
If the ink flow rate is different for each ink, if you supply all the inks using one roller with cells of the same capacity (), the amount of ink supplied for each ink will be excessive. In many cases, the color balance of the printing surface is not maintained and the printed result of multicolor printing is not beautiful.Therefore, in the keyless ink supply device of the rotary printing press for multicolor printing, the cell capacity of the anilox roller used is It is slightly redundant in relation to the flow rate of the physical properties of the ink used in the roller, and strict control of the IT ratio through its processing and operation is required, compared to rotary presses for single-color printing. Furthermore, there was a problem in that the running cost was high.

(Means for Solving the Problems) In order to solve these problems, the invention of the present invention provides an ink-receiving layer in which micro hollow bodies are dispersed and mixed on the surface thereof, and the micro hollow bodies are located at the outer peripheral position of the roller. In addition to providing a plurality of ink supply bags equipped with inking rollers with hollow portions opened, the micro hollow bodies in each inking roller are designed to at least match the flow rate of the physical properties of the ink that is excreted by each inking roller. A rotary printing machine for multi-color printing characterized by dispersing and mixing in a related mixing ratio, and a dispersing and mixing of hard material powder and micro hollow bodies? In addition to providing a plurality of ink supply devices each equipped with an ink roller having an ink-receiving layer formed on the surface thereof and opening a hollow part of a micro hollow body located at the outer circumferential position of the roller, the micro hollow body in each inking roller is provided. is a multi-color printing press, characterized in that the ink used in each inking roller is dispersed and mixed at a mixing ratio that is related to at least the flow rate of its physical properties; A plurality of ink supply devices each having an ink-receiving layer on the surface thereof and an ink roller having a hollow part of a microscopic hollow body opened at the outer peripheral position of the roller are provided, and ink is distributed and mixed on each ink roller. A rotary printing press for multi-color printing characterized in that the micro hollow bodies have a size related to at least the flow rate of the physical properties of the ink used in each inking roller, and a hard material powder and the micro hollow bodies. A plurality of ink supply devices each having an ink-receiving layer with a dispersed and mixed ink-receiving layer on the surface and an ink roller with an open hollow part of a micro-hollow body located at the outer periphery of the roller are provided. A rotary printing press for multicolor printing, characterized in that the micro hollow bodies dispersed and mixed have a size related to at least the flow rate of the physical properties of the ink used in each inking roller, and the micro hollow bodies are dispersed and mixed. It is recommended that multiple ink supply devices be provided with ink rollers each having a mixed ink receiving layer on the surface and opening the hollow part of a micro hollow body located at the outer periphery of the roller. An inking roller (a multi-color inking roller) characterized in that micro hollow bodies are dispersed and mixed in a size and a mixing ratio related to at least one of the physical properties of the ink used in each inking roller. A rotary printing press, and an ink having an ink-receiving layer on the surface of which a hard material powder and micro-hollow bodies are dispersed and mixed, and the hollow part of the micro-hollow bodies located at the outer periphery of the roller is opened. When multiple ink supply devices are provided, the micro hollow bodies in each inking roller are related to at least the flow rate of the physical properties of the ink used in each inking roller. An ink-receiving layer in which micro hollow bodies are dispersed and mixed in a mixing ratio related to at least the flow rate of the physical properties of the ink. A multi-color printing method, characterized in that printing is carried out sequentially using m-sized inking rollers which have an opening in the hollow part of a micro hollow body located at the outer circumferential position of the ink. A plurality of inking rollers each having an ink-receiving layer on its surface in which micro-hollow bodies having a size related to at least flow rate among the physical properties are dispersed, and the hollow parts of the micro-hollow bodies located at the outer peripheral position of the rollers are opened. A multi-color printing method characterized by printing sequentially using ink, and an ink-receiving layer having an ink-receiving layer on the surface in which micro hollow bodies having a size and a mixing ratio related to at least the flow rate of the physical properties of the ink are dispersed and mixed. A 4° filter multicolor printing method is provided, which is characterized in that a plurality of inking rollers are sequentially moved to open a hollow part of a micro hollow body located at a position on the outer periphery of the roller.

(Function) According to the structure of the present invention, an ink receiving layer in which micro hollow bodies having a mixing ratio related to at least one of the physical properties of the ink, the flow rate, is dispersed therein, or An ink receiving layer in which micro hollow bodies having a size related to the flow rate are dispersed and mixed therein, or an ink receiving layer in which micro hollow bodies having a size and a mixing ratio related to at least the flow rate among the physical properties of the ink are dispersed and mixed therein. An inking roller with a layer on its surface and an open hollow part of a micro hollow body located at the outer circumference of the roller,
By selecting and sequentially using ink G1 having an ink-receiving layer, ink G1 suitable for each ink with at least flow rate 5+ and B of physical properties can be selected and used sequentially. Supply ink of suitable m for each 4-ro.

That is, for example, first, each inking roller is supplied with ink by the ink supply means so that the ink is entangled around the outer periphery. During this ink replenishment, the part of the ink entangled with the outer peripheral surface of the inking roller is taken into the hollow part of the micro hollow bodies dispersed and mixed by opening a hollow part at the outer peripheral position of the roller.

Subsequently, an appropriate ink removing means that is in contact with the inking roller removes the excess amount of ink entangled with the outer circular surface of the ink (J-ra) from the outer circumferential surface. The ink taken into the micro hollow bodies remains on the outer peripheral surface.

The ink remaining on the outer peripheral surface of the inking roller is supplied to the printing plate directly or via an ink roller.

On the other hand, the ink supplied to the inking roller is adjusted to a proper IAI value by the ink supply means.
When the ink is supplied, since there is no excess ink around the outer periphery of the inking roller, the ink removing means does not remove the excess ink and the ink continues to be supplied to the printing plate. After the ink is supplied to the printing plate either directly or via the ink feed roller, the unconsumed ink that has not come into contact with the image area of the printing plate is left on the outer circumferential surface of the inking roller. However, excess ink remains or has been transferred. Therefore, after this is removed by the ink removing means, ink is replenished from the ink replenishing means to the outer circumferential surface of the inking roller to keep the amount of ink supplied to the printing plate substantially constant.

Furthermore, when the ink removal means removes excess ink or redundant ink, the ink (J-Ra outer peripheral surface) is worn out, but the ink receiving layer of the inking roller is dispersed with fine hollow bodies, and as it wears out, it gradually wears out. Since the roller is exposed on the outer circumferential surface and then the hollow part is opened, there is no significant change in the condition of the roller outer circumferential surface.

Furthermore, by dispersing and mixing hard powders in the ink receiving layer, when the ink removing means removes fine particles or surplus ink, the friction of the ink removing means is exclusively reduced.
Since the hard material powder mixed in the ink receiver*'lA is a burden, it suppresses wear on the outer circumferential surface of the ink roller after supplying the ink (J-ra) and extends the life of the inking roller.

Multicolor printing is performed by sequentially performing such actions in each ink supply device.

Embodiment) An embodiment of the rotary printing frame for multicolor printing and the offset rotary printing t+ill plate used in the multicolor printing method according to the present invention will be described below with reference to the drawings.

FIG. 1(a) shows one typical embodiment of an ink supply device (01) for an offset rotary printing press that can be used in the present invention. an inking roller (1) that is struck and rotated; an ink removal means (2) that comes into contact with the inking roller (1) to remove excess ink on the outer peripheral surface of the inking roller (1); Located upstream of the inking roller (1), ink is applied to the outer peripheral surface of the inking roller (11).
an ink hli supply means (3) for supplying ink, and an inking roller (1) located downstream of the inking roller (1).
) and the printing plate surface on the plate cylinder P, and the ink cartridge roller (4) that rotates by contacting the outer peripheral surface of the JQ roller.
It consists of

As shown in FIG. 2(a), the inking roller (1) includes an ink receiving layer (11) made of a mixture of a plurality of materials on the surface of a base member (16) made of steel, for example. This ink receiving layer (11) includes at least micro hollow bodies (
12) are mixed in a substantially evenly dispersed state, and the hollow part of the micro hollow bodies (12) dispersed and mixed at the outer peripheral position of the roller is opened υ°. In addition to the micro hollow bodies (12), hard material powder (13) such as hard inorganic powder is also mixed in a substantially evenly dispersed state (
(See Figures 2(b) and (c)).

Also, this ink-receiving layer (11) is dispersed in the ink-receiving layer material (14) and the ink-receiving layer base material (14) as shown in FIG. 2(b). ) and is composed of approximately uniform layers. Alternatively, as shown in FIG. 2(c), it consists of a substantially uniform layer in which hard material powder (13), ink-receiving layer base material (14), and micro hollow bodies (12) are mixed.

In this example, a flexible material was used as the ink-receiving layer base material (14), and urethane resin, which is a flexible synthetic resin, was used. Other synthetic resins, other resins, and rubber may also be used.

The fine hollow bodies (12) homogeneously dispersed in the ink receiving layer base material (14) may be those that can form hollow openings by removing a portion of the shell layer. The micro hollow body (12) is used as a microphone (l balloon, microsphere = I: (J-bubble, non-tactical material), for example, a carphone balloon,
Called crow balloons, glue balloons, noras balloons, phenol balloons, vinylidene chloride balloons, alumina balloons, and niconica balloons, these balloons are known to be various types of monsters. -12 For example,
US Vl:R5Al≧Manul'acLuring
Inc. r Carbo 5phcrcs
J (trademark) and r FilliLc manufactured by FilliLc in the UK.
l (product name) etc. The song number is carbon balloon, the bulk density is 0.15g/cm'', and the particle thickness is 1~28
m, particle size distribution is 50-15071m (average particle 1M5
0μ+n), particle size distribution 5-5-1O01t average particle size 4
5 μm), particle size distribution 5-50 μm ('T uniform diameter: t
o71m), and the particle size distribution is 50-150 μm (31′ uniform diameter 60 μm). Furthermore, it is also known that the surface is coated with nickel, iron, copper, gold, etc. The second one is Noriyoku Balloon, the bulk density is 0.4g/c mouth 13, and the particle size distribution is:
: Also 0 to 300 μm.

In this invention, it is possible to use at least 6 micro hollow bodies (12) enclosed in a waterfall with a particle size of 5 to 00 μrT1.
By changing the mixing ratio of the micro hollow bodies (12) that disperse and mix the ink into the printing plate, and/or by changing the size of the micro hollow bodies (I2), the redundant ink roller (1) of the ink supply tank to the printing plate can be can be easily created.

An inking roller (1) with a different ink capture claw using minute hollow bodies (12) that are dispersed and mixed at the outer circumferential position.
) supplies an appropriate amount of ink for each ink in multi-color printing, where it is necessary to always keep the balance of the ink supply amount constant, which is at least the flow rate of the physical properties. Therefore, in the case of the multi-color mark A11, it is possible to easily obtain an ink supply device that can properly supply ink for each individual ink, and this ink supply device can be stacked on the Satellite I type, 13-13, etc. It is effective when applied to multi-color printing rotary printing presses such as type, B-I3 side-by-side type, etc.

As the hard material powder (13), for example, ceramic powder, metal powder, alloy powder, etc. can be used. The hard inorganic powder used as the hard material powder (13) can have a size of at least about 1 to 100 μm.

Next, Inokic [1-Method for manufacturing car (1)-]L
Biζ explanation. In the InnoKick [J-car (1) shown in Fig. 2 (1) of I-1, micro hollow bodies (12) are evenly distributed in the ink receiving layer base material (14). Uoru. In the InnoKing broker (1) shown in FIG. 2(c), micro hollow bodies (12) and hard 14-layer particles (13) are uniformly dispersed in the ink-receiving layer base material (14). In this step, mixing or kneading means, etc., are applied to the receiving layer 1. (By an appropriate means that matches the properties of the material (14). The surface of the base member (16) is coated with the material (14) to form an ink-receiving layer (11).
By appropriate means such as casting, wrapping or coating. Next, an ink receiving layer (1
1) Grind the surface. Grinding can be done using a grinding machine (even if it is done using a grinding machine, the inking roller (1) can be done by friction with a plate or bar after it has been installed on a rotary press. Then, as shown in Fig. 2 (b) As shown, a micro hollow body (1
2) is used as a dispersed ink receiving layer (11), a part of the shell layer of the micro hollow bodies (12) located near the surface of the ink receiving layer (11) is removed and a hollow inner surface is formed. The ink-receiving layer (11) is exposed and a hollow portion is opened on the surface of the ink-receiving layer (11).Also, as shown in FIG. 2(c),
In the ink receiving layer (11) in which the micro hollow bodies (12) and the hard material powder (13) are dispersed, the shell layer of the micro hollow bodies (12) located near the surface of the ink receiving layer (11) is A portion of the hollow inner surface is exposed, and a hollow part is opened on the surface of the ink receiving layer (11).
Be exposed to the surface.

The ink removing means (2) is a 3L shown in FIG. 1(a).
It consists of a blade (21) with one tip in contact with the outer periphery of the inking roller (1).

The ink replenishing means (3) is provided on the upstream side of the inking roller (1), and the ink roller (3) rotates with a slight distance from the outer peripheral surface of the inking roller (1). The ink source roller (3) is provided on the -1-stream side of the ink source roller (3), and a part of the ink source roller (31) is
An ink storage body (3) that stores ink in a state where
2). During the printing operation, the ink in the ink reservoir (32) is additionally fed and overflowed (J-) to keep the height of the reservoir surface constant, as shown by the arrow in the figure.

Figures 3 (a), (b), (c), Figures 6 (a) to 9
Figure (I) shows the configuration of the ink ( ) (feeding device (Ol)) used in various embodiments of the rotary offset printing press according to the present invention. This is the same as the embodiment shown in Figure (a).

FIGS. 3(a), 3(b), and 3(c) show a form of the ink removing means (2) different from the embodiment shown in FIG. 1(a). That is, in FIG. 3(a), the plate (21
) instead of the inking roller (1), the outer circumferential surface is brought into contact with the outer circumferential surface of the inking roller (1), and the inking roller (1) rotates at a rotational speed slower than that of the inking roller (1).
When the contact pressure with the inking roller (1) is set to 1, the inking roller (22) is configured to rotate at the same speed as the peripheral speed of the inking roller (1). Figure 3 (1)) shows the ink source roller (31) in Figure 3 (
The roller (22) which is the ink removal means (2) shown in c)
) Please provide an example that can be used for both purposes. Figure 3(c)
In this case, instead of the plate (21), a bar (
23). Note that (a) to (f) of FIGS. 6 to 8, which will be explained below, are shown using a blade (21) as the ink removal means (2), but a roller (22) is used as the ink removal means (2). or bar (23)
The ink source roller (31) may also be used as the ink removing means (2).

FIG. 6(a) to FIG. 9(d) show each implementation by the combination of the ink hli supply means (3) to the inking roller (1) and the ink supply path from the ink crawler (11 to the printing plate surface). An example configuration is shown. Figures 6(a) to (")
The ink is stored at a constant storage height at all times.
For example, an ink storage body (32) in the form of an ink fountain or an ink fountain is an essential component of the ink supply means (3). Figure 7 (a) to (r)
This is a form in which an ink discharger (33), which always discharges a predetermined amount of ink, such as a nozzle-shaped ink discharger (33), is an essential component of the ink supply means (3). Figures 8(a) to 9(d)
) is an ink holding body (34) in the shape of a so-called ink fountain or ink chamber, which partitions at least a part of the opening 1] part with a part of the circumferential surface of the inking roller (11 or ink source roller (31)), (35) is an essential component of the ink replenishing means (3).

8(a) to 8(f) use the ink retaining body (34) with the opening portion partially open, and FIG. 7(a) to (d) use the ink retaining body (34) with the opening portion closed. At the same time, an embodiment is shown in which an ink retaining body (35) is also provided with an ink removing means (2). 9(a), (1)), the ink removing means (2) installed together consists of a blade (21), and FIG. 9(c), (d) shows the ink removing means (01) installed together. 2) consists of a bar (23).

Furthermore, in FIGS. 6 to 9, each (a),
Figures (c) and (e) show the form in which the inking roller (1) directly supplies ink to the printing plate surface, and the same <(b),
(d), (Figure 0) shows a configuration in which an ink foam roller +41 is interposed between the inking roller (1) and the printing plate surface, and the ink foam roller (4) supplies ink to the printing plate surface.

15 in FIGS. 6 to 9, each (a
), (b) The diagrams show the ink roller (1
) shows a form in which ink is supplied directly to the outer circumferential surface of the ink. Same <
(c), ((I), (e), ('') Figures are ink hli
The supply means (3) includes an ink source roller (31) 11, and the ink source roller (31) is supplied from the ink storage body (32), the ink discharge body (33), or the ink retention bodies (34) and (35). Ink is supplied to the outer circumferential surface of the inking roller (1) via the ink roller.

Each (c) and ((j) figure is a form in which ink is supplied to the ink source roller (31) at 11 points outside the J-Lar (1), and each (c), The ([) figure shows that another [l-r (36)] is interposed between the ink source [l-r (31) and the ink roller (1), and the pond roller (36) is connected to the ink feeder [1- 4-0 In the above, the ink injecting roller (31) has a form in which ink is replenished to the outer peripheral part of the roller (1). It may be spaced apart from or in contact with the outer circumferential surface of the king roller (1).Furthermore, the forms shown in each of the figures (e) and (f) are different from the inking roller (1).
The ink film thickness adjusting blade (31) is located close to the outer periphery of the
7) is provided to regulate the ink film thickness on the outer surface of the inking roller (31) and apply ink to the outer periphery of the inking roller +11 via another roller (36).
Hi supply j [3 states. Therefore, the other rollers (3
6) is provided so that its outer peripheral surface is in contact with both the outer peripheral surface of the ink source roller (31) and the outer peripheral surface of the inking roller (1). Excess ink is not replenished to the outer periphery. However, the printing plate surface or ink foam roller (4)
The outer circumferential surface of the inking roller (11) is filled with unconsumed ink at the printing area and contact u゛'J'.
That is, since the interest rate ink is residual or transferred, the blade (21), which is the ink removal means (2), is provided to remove such interest rate ink.

The dampening water supply means is shown in each figure, and only the dampening water foam roller is shown schematically in FIGS. 6(a) to 9(d).

In addition, although all of the configurations are shown as examples using an offset rotary printing press, the same configuration may be applied to a letterpress rotary printing press including a flexo rotary printing press without any problem.

According to the configuration of the above embodiment, first, the ink supply means (
3), the ink is entwined with the outer peripheral surface of the inking roller (1) and Mli is supplied.

When the ink replenishing means (3) includes an ink storage body (32), the ink roller +11 is supplied with at least a part of the ink nozzle (31) to the ink stored in the ink storage body (32). Immersed. Then, directly on the outer circumferential surface of the ink jet [Nola (11) or
The ink pumped out by the 91 peripheral surface of the ink source roller (31) is transferred from the outer periphery of the ink source [l-r (31) or through the outer periphery of another roller (++6),
Ink [is supplied to the outer circumference of the roller (11). When the ink supply means (3) is equipped with an ink discharger (33), the ink discharger (33) is supplied to the outer circumference of the inking roller (1). Alternatively, ink source [J-Lar (31) and ink [1-Lar (1)
), or discharge ink toward the outer circumference of the ink source [l-r (31), and directly onto the outer circumferential surface of the ink nozzle roller (11). , or from the outer peripheral surface of the ink source roller (31) or through the outer peripheral surface of another roller (36),
hli is supplied to the outer peripheral surface of the ink feed roller (1). The ink supply means (3) has an opening fT, and at least a part of this opening is divided by the inking roller (1) or the ink source [1--a part of the roller (31)-] into the ink holding body. (34) or (35), the ink retaining body (34) or The ink source [1-lar (
h to the outer circumferential surface of the inking roller (1) from the outer circumferential surface of the inking roller (31) or via the outer circumferential surface of another roller (36).
give li.

A part of the ink supplied with Mi to the inking roller (1) is taken into the hollow part of the micro hollow body (12) which opens a hollow part at the outer circumferential position of the inking roller (1) and is dispersed and mixed. Move over.

Subsequently, by the rotation of the inking roller (11), the ink removing means (2) that is in contact with the outer circumferential surface of the inking roller (1) is moved to the outer circumferential surface of the inking roller (1).
Remove excess ink from the outer peripheral surface. After this excess ink has been removed, the outer circumferential surface of the Innoking roller (1) has a mark (j:ll) incorporated into each of the 81 hollow spaces of the micro hollow body (12) that acts like a warm ink retention cell. Appropriate J-jit ink is retained and 4' remains
Ru.

Curved blade, (e) and (1') in Figures 6 to 8, respectively
In the configuration shown in the figure, the inking roller (1) is supplied with ink that has been adjusted to the appropriate printing M in the ink replenishing means (3) on the outer peripheral surface of the inking roller (1), such as in the hollow part of the micro hollow body (12). Since the ink is replenished at
Ink removal is not necessary and is not performed.

Subsequently, by further rotation of the inking roller +11, an appropriate amount of ink for printing on the outer peripheral surface of the inking roller (1), such as the hollow part of the micro hollow body (12), is directly applied from the inking roller (1). , or supply to the printing plate surface via the outer peripheral surface of the ink form roller (4).

The inking roller (1) is used to supply ink to the curved surface of the 11th printing plate directly from the inking roller (1) or via the outer peripheral surface of the ink form roller (4).
On the outer circumferential surface of the printing plate surface, unconsumed ink, that is, excess ink, which is in contact with the image area of the printing plate surface, remains or is transferred. Figure 1 (a), (Figure 1 (a), (b), (c)
In the configuration shown in (a) to (d) of FIGS. 6 to 9, respectively, the excess ink is supplied with ink in the U-state, and the excess ink is removed by the ink removal means (2). The ink is removed and the ink on the outer peripheral surface of the ink (1) is adjusted to an appropriate amount for printing. When ink is replenished 4 degrees to overlay excess ink, ink I convex portions appear on the outer peripheral surface of the inking roller (1).

Therefore, each of (0) and (J) in FIGS. 6 to 8
In the configuration shown in the figure, a blade serving as an ink removing means (2) is brought into contact with the outer peripheral surface of the inking roller +11 that has finished supplying ink to the printing plate surface, and excess ink is removed from the inking roller (1). Remove from the outer surface.

By continuously rotating the inking roller (11), the above-described actions can be performed continuously.

On the other hand, when the ink removing means (2) removes excess ink or surplus ink I+1, the ink [1-ler (
Although the outer circumferential surface of 1) gradually wears out, the ink receiving layer (l[) provided on the surface of the Innoking roller (1) has micro hollow bodies (12) almost evenly distributed and mixed therein. , are sequentially exposed to the outer circumferential surface as the inking roller (1) wears, and then the hollow part is opened, so the condition of the outer circumferential surface of the inking roller (1) is as follows.
R1 color change does not occur until just before the ink receiving layer (11) is exhausted. Therefore, an appropriate amount of ink can be supplied for an extremely long period of time.

Furthermore, in a configuration using an inking roller (1) in which a hard material powder (13), for example, a hard inorganic powder, is mixed and dispersed approximately evenly in the ink receiving layer (11), the ink removing means during the ink removing action is used. Since the friction caused by (2) is borne exclusively by the hard inorganic powder, wear on the outer peripheral surface of the inking roller (1) is suppressed. In addition, in this case, the state of the outer circumferential surface of the inking roller is different from that of the ink receiving layer (1
No fT@ change occurs until just before 1) is exhausted. Therefore, the ink supply at a printing appropriate level can be continued for a longer period of time.

These described ink supply devices (Of) are used for multicolor rotary printing presses and multicolor printing.

That is, FIG. 1(b) schematically shows an embodiment of a satellite type multicolor offset rotary printing press using the ink supply device shown in FIG. 1(a). B-B stacked type multicolor 1 implementing the ink supply device shown in Fig. 1 (21)
A schematic diagram of an embodiment of a JILL offset rotary printing press is shown in FIGS. 4(a) and 4(b). Further, FIG. 5 is a schematic diagram of an embodiment of a B-8 side-by-side multicolor 16-ri offset rotary printing press in which the ink supply device shown in FIG. 1(a) is implemented.

Then, an ink receiving layer (12) in which micro hollow bodies (12) each having a size and/or a mixing ratio suitable for at least one of the physical properties of the ink are dispersed and mixed in relation to at least the flow rate of the ink (
+1) with the negative end on the surface, and the inking roller (1)
Open the hollow part of the door body (12) at the outer circumferential position (gamma position, 1-rotation medium).
The ink supply device (01) with υIn is sequentially used j11
Then perform multicolor 11i11 printing. Even in one multicolor rotary printing press, all ink supply devices must be of the same type.For example, for color 15, or (j
The configuration of the ink replenishing means may be changed depending on the location on the rotary press.

Micro hollow bodies (12) of the inking roller (1) to be used
) The mixing ratio and/or size of
Changes will be made taking into account the differences in The change is that only the size of the hollow micro body (12) is changed by 1, and the size and mixing ratio of the six micro hollow bodies (12) are changed only by the mixing ratio of the hollow micro body (12). Awa U- It's good to go. The ink flow rate and film thickness concentration are each ink fJ
i is often 5"4. Therefore, in relation to the ink flow rate, if the ink has a low flow rate and is difficult to flow, the mixing ratio of the micro hollow bodies (12) may be increased or/and the micro hollow bodies (12 ).In relation to film thickness and density, when using several inks together, a well-balanced film thickness and density is required for printing, and to achieve this, it is necessary to increase the film thickness and density for each ink. It is necessary to change the film thickness, that is, it is necessary to change the amount of ink supplied, and for each ink, micro hollow bodies (
12) It is necessary to change the mixing ratio and/or size.

However, printing performed by gee-less ink supply using cells or open micro hollow bodies (hereinafter referred to as "micro cells, etc.") requires a constant amount of ink matching the volume of a large number of micro cells, etc., to be constantly applied to the plate surface. Printing is performed by supplying ink, and it is necessary for the ink to enter only a predetermined shape into the microcells etc. at all times. If the wettability of the surface of the microcell, etc. to ink is approximately constant (if the material composing the microcell, etc. is approximately constant, and the condition of the surface of the microcell, etc. is approximately constant, the wettability is approximately constant). Be able to think.

), the degree to which the ink penetrates into the microcells, etc. is related to the ease with which the ink flows, that is, the flow rate of the ink. However, for one ink flow, for example, the measurement of the ink used by the applicant (directly, flow rate (glass tentative, 10 minutes, 25 degrees, mm) is 194 in r-CI-. , 256 for magenta, 246 for Noan, and 293 for black, which differs for each ink.

Therefore, in order to always obtain a constant volume of ink for each ink, it is necessary to
For ink that has a low flow rate and is difficult to flow, it is necessary to increase the volume of the microcells, etc. in advance.

On the other hand, the keyless engine fj1. using micro cells etc. Printing performed by feeding or drying involves supplying a fixed amount of ink to the printing plate, and the film thickness and density of each ink during printing is
For example, in the measured values of the inks used by the applicant, each ink fj L: 94 as shown in Table I. Therefore, when printing using several inks, it is necessary to have a well-balanced film thickness density on the mark (1: surface). It is necessary to change the film size for each ink, and it is also necessary to change the amount of ink to be supplied, and it is also necessary to change the volume of the microcell etc. for each ink.

111dll ink is a mixture of pigment and liquid,
Although the inks are of approximately the same color, it is thought that the flow rate and the 1'7 density change independently depending on the pigment used, the difference in the liquid, and/or the difference in the mixing ratio of the two. Therefore, it is necessary to select the inking roller to be used for each ink.

In addition, it goes without saying that the flow rate and film thickness concentration for each ink are independent factors that change the cell volume Wt, and the final cell volume is determined by taking both of them into consideration. It is necessary to decide accordingly.

(Effects) As described above, the present invention provides a rotary printing machine for multicolor printing capable of supplying appropriate ink to each ink fi in the case of multicolor medium J:ll, and multicolor printing. Find out how.

Then, ζ, this ink supply device is a zatellite type, I-cage.
FT effect when applied to multi-color printing rotary presses such as stacked type, 13-13 horizontal, 1 (panel type).

Historically, in the keyless ink supply device used in this invention, the Innoking [J
- Is the outer circumferential surface rough? Since no major changes occur, this inking roller can be used for a long period of time, and therefore the frequency of replacing the inking roller is reduced, making it possible to increase printing work efficiency. Furthermore, when the hard material powder is dispersed and mixed in the ink receiving layer, the hard material powder exposed on the surface bears the load of the doctor blade, suppressing the wear of the ink receiving layer and the inking roller. It is possible to make the lifespan longer.

In addition, the inking roller is cheaper than the conventional Ani-1 (J-Lar), and can be used to reduce the frequency of replacing the Inno-King (1-Ler), greatly reducing running costs. I can do it.

[Brief explanation of drawings]

FIG. 1(a) is a schematic diagram showing an example of an ink supply device that can be implemented in a rotary printing press for multicolor printing according to the present invention, and FIG. 1(1)) is an ink supply device not shown in FIG. 1(a). Use 1
2(a), (1)) and (c) are explanatory diagrams of the inking roller used in this invention; FIG. 3(a),
(c) is a schematic diagram showing an embodiment in which the ink removal means in the 4° ink supply device shown in FIG. 1 (a) is replaced with another means; The ink removing means shown in FIG. 3(c) is a schematic diagram of an embodiment used for both l-color, and FIGS. 4(a) and (b) are:
13-1 with the ink supply device shown in Figure 1 (E)
A schematic diagram showing a 3-stacking type multi-color printing offset rotary printing press, and FIG. 5 shows a +3-13 side-by-side type multi-color printing offset rotary printing press implementing the ink supply device shown in FIG. 1(a). Schematic diagram, Figure 6 (a), (1)), (c),
(d), (c), (f), Figure 7 (a) (1)), (c
), ((1), (c), (f), Figure 8 (a), (1)
), (c), (d), (e), (r), Figure 9 (a),
(b), (c), and (d) are 4-schematic diagrams illustrating an embodiment of an ink supply device of a type that is implemented in a rotary printing press for multicolor printing according to the present invention. Note that FIG. 6(d) is the same as the embodiment shown in FIG. 1(a). (Ol)... ・Ink 0 (feeding device, ('')...
Innoking [1-ler, (11)... Ink receiving layer, (12)... Micro hollow body, (13)...
... Hard material powder, (14) ... Ink receiving layer base material, (16) ... Base member, (2) ... Ink removal means, (21) Blade, (22) ... ...Roller (23)...Bar, (3)...Ink supply means, (31)...Ink source roller, (32)...
Ink storage body, (33)... Ink discharge body, (34),
(35)... Ink retention body, (36)...
Other rollers, (37)...Image model 17 adjustment blade, (4) ・Inkif 1-Muro D dampening water supply means, thickness of the layer on the paper surface of the same Yasuhara Masayoshi page) 6th (a) Figure 6(b) 7th country (b) Figure 7(c) Figure 6 Busy) 7th (0) 7th (d)

Claims (9)

[Claims] (1) A plurality of ink supply devices each equipped with an inking roller having an ink-receiving layer in which micro hollow bodies are dispersed and mixed on the surface and opening the hollow part of the micro hollow bodies located at the outer circumferential position of the roller; A rotary printing press for multicolor printing, characterized in that the micro hollow bodies in the inking rollers are dispersed and mixed at a mixing ratio related to at least the flow rate of the physical properties of the ink used in each inking roller. (2) An ink supply device equipped with an inking roller which has an ink receiving layer on its surface in which hard material powder and micro hollow bodies are dispersed and mixed, and which opens the hollow part of the micro hollow bodies located at the outer periphery of the roller. Rotary printing for multicolor printing, characterized in that a plurality of inking rollers are provided, and the micro hollow bodies in each inking roller are dispersed and mixed at a mixing ratio related to at least the flow rate of the physical properties of the ink used in each inking roller. Machine. (3) A plurality of ink supply devices each equipped with an inking roller having an ink-receiving layer in which micro hollow bodies are dispersed and mixed on the surface and opening the hollow part of the micro hollow bodies located at the outer circumferential position of the roller; A rotary printing press for multicolor printing, characterized in that the micro hollow bodies dispersed and mixed in the inking rollers have a size related to at least the flow rate of the physical properties of the ink used in each inking roller. (4) A plurality of ink supply devices equipped with an inking roller which has an ink receiving layer on its surface in which hard material powder and micro hollow bodies are dispersed and mixed, and which opens the hollow part of the micro hollow bodies located at the outer circumferential position of the roller. A rotary printing machine for multicolor printing, characterized in that the micro hollow bodies dispersed and mixed in each inking roller have a size related to at least flow rate of the physical properties of the ink used in each inking roller. . (5) In addition to providing a plurality of ink supply devices equipped with ink rollers each having an ink receiving layer on the surface of which micro hollow bodies are dispersed and mixed and opening the hollow part of the micro hollow bodies located at the outer circumferential position of the roller, each A rotary printing press for multicolor printing, characterized in that the micro hollow bodies in the inking rollers are dispersed and mixed in a size and a mixing ratio that are related to at least the flow rate of the physical properties of the ink used in each inking roller. (6) A plurality of ink supply devices equipped with an inking roller that has an ink receiving layer on its surface in which hard material powder and micro hollow bodies are dispersed and mixed, and that opens the hollow part of the micro hollow bodies located at the outer circumferential position of the roller. In addition, the micro hollow bodies in each inking roller are dispersed and mixed in a size and a mixing ratio related to at least the flow rate of the physical properties of the ink used in each inking roller. Rotary printing press. (7) The surface is equipped with an ink-receiving layer in which micro-hollow bodies are dispersed and mixed at a mixing ratio related to at least the flow rate of the physical properties of the ink, and the hollow part of the micro-hollow bodies located at the outer periphery of the roller is opened. A multicolor printing method characterized by printing using a plurality of inking rollers sequentially. (8) The surface is provided with an ink-receiving layer in which micro-hollow bodies having a size related to at least the flow rate of the physical properties of the ink are dispersed, and the hollow part of the micro-hollow bodies located at the outer periphery of the roller is opened. A multicolor printing method characterized by printing using multiple inking rollers in sequence. (9) The hollow part of the micro hollow body is provided with an ink receiving layer on the surface in which micro hollow bodies are dispersed and mixed, the size and mixing ratio of which are related to at least the flow rate of the physical properties of the ink, and the hollow part of the micro hollow body is located at the outer peripheral position of the roller. A multicolor printing method characterized by printing using sequentially a plurality of inking rollers having openings.