JP2011056839A - Removal plate cleaning method, removable plate cleaning substrate, method for recovering ink, method for reproducing ink, and removal plate cleaning device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide removal plate cleaning method and device for a removal plate, inexpensively patterning a plurality of substrates highly accurately by using a reverse relief printing plate printing method. <P>SOLUTION: For performing micropatterning by using a reverse relief printing plate printing method, a removal plate cleaning substrate 5 or a roller is pressed on a removal plate 3 where ink 12 of an unnecessary part is transferred to a convex part, and then peeled. The ink of the unnecessary part is transferred to the removal plate cleaning substrate side, and then the surface of the substrate 5 is scratched to recover the ink of the unnecessary part. Conventionally discarded ink is recovered without any waste. The recovered ink 13 is adjusted again to be usable for printing. Thus, a plurality of highly precise patterning substrates is inexpensively manufactured. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a removal plate cleaning method, a removal plate cleaning substrate, an ink recovery method, an ink regeneration method, and a removal plate cleaning apparatus when fine patterning is performed using a reverse relief printing method.

Today, printing technology is not only used for printing characters on paper, but also used in the production of many kinds of products and in product fields that require high-definition patterning. ing. For example, in the field of electronics, it is also used for manufacturing color filters such as electronic paper and liquid crystal display devices, and electronic parts such as electrical wiring and insulating layers.
As a printing method, there are various methods such as an inkjet method, flexographic printing using a relief printing, resin relief printing, and a screen printing method using a stencil. Among them, a printing method called “inverted relief printing method” using a removal plate having a fine unevenness and a blanket is a printing method having excellent patterning properties. Patent Document 1 proposes to use a reverse letterpress printing method as a method for producing the color filter.

  The reverse letterpress printing method is a method in which an unnecessary portion of ink from the blanket is transferred to the convex portion of the removal plate, and only a necessary portion of ink remaining on the blanket is transferred onto the substrate. Therefore, when the product is continuously manufactured, it is necessary to remove the unnecessary portion of ink from the removal plate every time printing is performed (hereinafter referred to as removal plate cleaning).

Various methods exist for the removal plate cleaning method. The simplest removal plate cleaning method is to use a cloth containing an organic solvent and wipe the surface of the removal plate to which unnecessary ink has adhered by hand (hereinafter referred to as the hand-wiping removal plate cleaning method). Can be mentioned.
However, in the manual wiping type removal plate cleaning method, removal residue due to uneven wiping tends to occur on the removal plate. Therefore, when high-definition patterning such as a color filter is necessary, the manual wiping type removal plate cleaning method cannot be used.

Another removal plate cleaning method is to dissolve the unnecessary portion of the ink by spraying an organic solvent such as methyl ethyl ketone on the removal plate, and then scrape the ink on the convex portion of the removal plate with a rubber doctor blade. Further, there is a removal plate cleaning method (hereinafter referred to as a wet-type removal plate cleaning method) in which the ink solution that has fallen into the recesses is wiped off with a cloth or the like.
In order to pattern a high-definition product such as a color filter, it is necessary to use a removal plate having fine irregularities. However, in the wet-type removal plate cleaning method, the removal plate convex portion is directly scratched by the doctor blade, and therefore foreign matter due to abrasion between the removal plate convex portion and the doctor is likely to be generated on the removal plate. Furthermore, fiber scraps may be generated due to the contact between the removal plate convex portion and the cloth. The foreign matter, fiber scraps, etc. remaining on the removed plate cause defects in the product and significantly reduce the quality of the product. Therefore, the wet type removed plate cleaning method cannot be used for high-definition patterning.

On the other hand, a removal plate cleaning method (hereinafter referred to as a dry removal plate cleaning method) in which an adhesive base material having an adhesive or the like is attached to an unnecessary portion of ink on a removal plate and then peeled off from the removal plate together with the ink. ) Has also been proposed (see Patent Document 2).
In the dry removal plate cleaning method, unnecessary portions of ink can be completely removed from the removal plate without generating the foreign matter and fiber waste. For this reason, it is desirable to use a dry removal plate cleaning method when performing high-definition patterning.

  When the dry-type removal plate cleaning method is selected, the unnecessary portion of ink removed from the removal plate remains on the adhesive film and is discarded together with the adhesive film. Accordingly, the discarded ink material is wasted, which has been a factor in increasing the cost of the product. Therefore, it has been a problem to propose means for recovering and reusing unnecessary portions of ink generated when high-definition patterning is performed using the reverse relief printing method.

Patent No.403705 JP 2006-255998 A

  The problem to be solved by the present invention is a removal plate cleaning method, a removal plate cleaning substrate, an ink recovery method, and an ink regeneration method that enable high-definition patterning to be performed at low cost using the reverse relief printing method. And a removal plate cleaning apparatus.

The invention according to claim 1 is: 1) solid coating for applying ink to the entire surface of the blanket surface having ink releasability;
2) Primary transfer that transfers only the unnecessary portion of the ink on the blanket surface to the convex portion of the removal plate and forms a pattern of the necessary portion of ink on the blanket surface;
3) A secondary transfer in which a pattern made of the necessary portion of ink formed on the blanket surface is transferred onto the substrate, and a pattern made of the required portion of ink is formed on the substrate.
4) A reversal letterpress printing method comprising a step of washing a removed plate to remove ink of an unnecessary portion transferred to the raised portion of the removed plate,
The removal plate cleaning method eliminates the need to transfer the protrusion plate surface of the removal plate onto which the unnecessary portion of ink has been transferred and the removal plate cleaning substrate after pressure bonding to each other, and then to the protrusion portion of the removal plate. This is a removal plate cleaning method characterized in that a portion of ink is transferred to a removal plate cleaning substrate and the removal plate is cleaned.

  The invention described in claim 2 is a substrate for cleaning a removal plate according to claim 1, wherein the substrate for cleaning the removal plate according to claim 1 has a smooth surface and a tape peeling strength larger than the convex portion of the removal plate is there.

  The invention described in claim 3 is an ink recovery method characterized in that unnecessary portions of ink are recovered in a lump by scratching on the removal plate cleaning substrate according to claim 1 or claim 2.

  The invention according to claim 4 is such that the component composition of the bulk ink recovered by using the ink recovery method of claim 3 becomes the component composition of the original ink before the ink is applied to the entire surface of the blanket surface. This is a method for regenerating ink, characterized in that it is adjusted and regenerated.

Invention of Claim 5 is 1) Solid coating which coats ink on the whole surface of the blanket surface which has ink peelability,
2) Primary transfer that transfers only the unnecessary portion of the ink on the blanket surface to the convex portion of the removal plate and forms a pattern of the necessary portion of ink on the blanket surface;
3) A secondary transfer in which a pattern made of the necessary portion of ink formed on the blanket surface is transferred onto the substrate, and a pattern made of the required portion of ink is formed on the substrate.
4) A removal plate washing apparatus used in a reverse relief printing method comprising a step of washing a removal plate to remove ink of unnecessary portions transferred to the projections of the removal plate,
A) A mechanism in which the plate-shaped removal plate and the plate-shaped removal plate cleaning substrate are bonded to each other and then peeled off. B) A doctor blade on the removal plate cleaning substrate,
C) Mechanism for stirring unnecessary ink scraped and collected by the doctor blade and at least the same solvent as the ink component,
D) Mechanism for adding appropriate amounts of various solvents,
It is a removal plate washing | cleaning apparatus characterized by having.

The invention according to claim 6 is: 1) solid coating for coating ink over the entire surface of the blanket surface having ink peelability;
2) Primary transfer that transfers only the unnecessary portion of the ink on the blanket surface to the convex portion of the removal plate and forms a pattern of the necessary portion of ink on the blanket surface;
3) A secondary transfer in which a pattern made of the necessary portion of ink formed on the blanket surface is transferred onto the substrate, and a pattern made of the required portion of ink is formed on the substrate.
4) A removal plate washing apparatus used in a reverse relief printing method comprising a step of washing a removal plate to remove ink of unnecessary portions transferred to the projections of the removal plate,
A) A mechanism in which a roll-shaped removal plate and a removal plate cleaning roll in contact with the removal plate rotate synchronously,
B) A doctor blade on the removal plate cleaning roll,
C) Mechanism for stirring the unnecessary ink scraped and collected by the doctor blade and at least the same solvent as the ink component,
D) Mechanism for adding appropriate amounts of various solvents,
It is a removal plate washing | cleaning apparatus characterized by having.
It is a removal plate cleaning apparatus characterized by having a mechanism for stirring the same solvent as the ki component and a mechanism for adding appropriate amounts of various solvents.

  By using the removal plate cleaning method and the removal plate cleaning apparatus of the present invention, high-definition patterning can be performed by the reverse relief printing method without generating foreign matter or fiber waste. Further, conventionally discarded ink can be recovered without waste, and the recovered ink can be used again for printing by adding a solvent or the like to the ink and regenerating it. Therefore, high-definition patterning can be performed at a low cost.

It is sectional drawing which shows the basic composition of a blanket. It is sectional drawing which shows the basic method of primary transfer. It is sectional drawing which shows the basic method of a secondary transfer. It is sectional drawing which shows the basic method of removal plate washing | cleaning. It is sectional drawing which shows the basic method of ink collection | recovery. It is sectional drawing which shows the basic method of regeneration of an ink. It is a basic sectional view in the case where all of the blanket, the removal plate, and the removal plate cleaning substrate are cylindrical.

Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to FIGS. In addition, the form shown below is an example and does not give a restriction | limiting at all to this invention.
First, solid coating for applying ink to the entire surface of the blanket (2) is performed. This step is called solid coating. As shown in FIG. 1, the blanket (2) has only to have at least a support (21) and a transfer layer (22). In FIG. 1, the lower surface of the transfer layer (22) corresponds to the surface of the blanket.

  There is no restriction | limiting in particular in the material of a support body (21), The arbitrary materials generally used can be used. Specifically, for example, woven or non-woven fabric made of natural fiber or synthetic fiber, polyolefin resin, polyester resin, acrylic resin, styrene resin, polyamide resin, epoxy resin, melamine resin, urethane resin , Phenolic resin, polycarbonate resin, polyvinyl chloride resin, polyvinylidene chloride resin, polyvinyl acetate resin, ethylene vinyl acetate copolymer, fluororesin and other synthetic resin base materials, rubber base materials, aluminum, stainless steel, etc. Examples thereof include metal base materials and the like, composites, laminates, and the like thereof, and may be appropriately selected from them according to the intended use. Moreover, there is no restriction | limiting in particular also about the thickness of a support body (21).

The type of the transfer layer (22) is not particularly limited as long as it is a material having ink releasability capable of transferring the coated ink to another substrate. Specifically, for example, a silicone resin, a fluororesin, or a laminate thereof may be used, and may be appropriately selected from those according to the intended use. There is no particular limitation on the thickness of the transfer layer.
The shape of the blanket (2) is not particularly limited, and may be a plate shape as shown in FIG. 1 or a roll shape as shown in FIG.

  The method of applying ink is not particularly limited as long as it can be applied with a uniform thickness, and any generally used method can be used. Specifically, for example, there are a slit coater method, a spin coater method, a bar coater method, and the like, which may be appropriately selected according to the intended use.

  Next, as shown in FIG. 2 (a), the removed plate (3) patterned so that the portion necessary for patterning becomes the concave portion (31) and the other portion becomes the convex portion (32). ) And the blanket (2) coated with ink on the entire surface thereof, as shown in FIG. 2 (b), and then peeled off as shown in FIG. 2 (c). Let At this time, the ink corresponding to the removal plate convex portion (32) is transferred to the removal plate (3) side, and these become unnecessary portions of the ink (12). This step is called primary transfer. At this time, the ink corresponding to the removed plate recess (31) remains on the surface of the blanket (2) as it is. This forms a necessary pattern of ink (11).

After completion of the primary transfer, as shown in FIGS. 3A and 3B, the surface side of the blanket (2) on which a pattern made of the necessary portion of ink is formed, and a glass plate, a plastic film, etc. are used as materials. After pressing the substrate (4) of the product, as shown in FIG. 3 (c), each was peeled off, and a pattern made of a necessary portion of ink was formed from the blanket (2) to the substrate (4). Transfer to the side and form a pattern on the substrate. This step is called secondary transfer.
Through the above steps, the first substrate on which a high-definition pattern is formed is completed.

  On the other hand, in order to produce a product continuously, it is necessary to remove all unnecessary ink (12) remaining on the convex portion (32) of the removal plate (3) before the next printing is performed. In the present invention, as shown in FIGS. 4 (a) and 4 (b), a removed plate (3) to which an unnecessary portion of ink (12) has been transferred (attached), and a removed plate for smooth surface having no irregularities. After press-bonding the substrate (5), as shown in FIG. 4 (c), by removing each of them, the unnecessary portion of the ink (12) adhering to the convex portion of the removal plate is removed. Transfer to the side (5) to remove the unnecessary portion of ink (12) on the removal plate. This step is called removal plate cleaning.

  Here, the tape peeling strength on the surface of the convex portion of the removal plate (3) is larger than the tape peeling strength on the surface of the transfer layer (22) of the blanket (2), and the tape peeling strength on the surface of the convex portion of the removal plate (3). If the condition that the strength is smaller than that of the removal plate cleaning substrate (5) is satisfied, the material and structure of the removal plate (3) and the removal plate cleaning substrate (5) are not particularly limited. What is necessary is just to set timely according to the objective. Here, the tape peel strength refers to the acrylic adhesive tape No. 1 manufactured by Nitto Denko Corporation on the surface of the blanket (2), the removal plate (3), or the removal plate cleaning substrate (5). The average load per tape width required for peeling when 31B is pasted and peeled at an angle of 180 degrees.

In the combination of a specific blanket (2), removal plate (3), and removal plate cleaning substrate (5), the transfer of the blanket (2) with silicone having a tape peeling strength of 0.1 N / 25 mm width and relatively small peeling. Select the layer (22), select a silicone with a tape peel strength of 2.0 N / 25 mm width and a large peel as the removal plate (3), and further make a tape peel strength of 2.0 N / 25 mm width or more. A combination of using a flat plate for the removal plate cleaning substrate (5) is an example.
Moreover, there is no restriction | limiting in particular also about the shape of the said board | substrate for removal plate washing | cleaning (5) and a removal plate (3), A plate shape or a roll shape may be sufficient, and what is necessary is just to set suitably according to the objective.

  As described above, the removal plate cleaning method according to the present invention is not the above-described manual wiping type removal plate cleaning method or the wet type removal plate cleaning method, but a removal plate cleaning method similar to the dry type removal plate cleaning method. Since unnecessary portions of ink can be completely removed from the removal plate without generating foreign matter or fiber waste, this is a removal plate cleaning method suitable for high-definition patterning.

Next, as shown in FIGS. 5A and 5B, using a doctor blade (6), an unnecessary portion of ink (12) transferred onto the surface of the removal plate cleaning substrate (5). Scrape and collect. This step is called ink recovery.
Here, since the surface of the removal plate cleaning substrate (5) is smooth without any irregularities, there is almost no generation of foreign matter due to abrasion of the doctor blade (6) and the removal plate cleaning substrate (5). Further, since the recovered ink is in a semi-dry state, it is a block ink (13) solidified to some extent.

  Here, the material of the doctor blade (6) is not particularly limited. Specific materials include, for example, steel such as SUS420, which is martensitic stainless steel or SUS301, which is austenitic stainless steel, or plastics such as polyacetal, polyethylene, and polyester. It ’s fine. Alternatively, the entire doctor blade or the tip portion may be coated with a fluorine resin, ceramic, or the like using a plating method.

  There is no particular limitation on the tip edge shape of the doctor blade. As a specific shape, for example, a straight shape having a constant thickness from the original to the tip, a stepped shape in which the thickness is constant and narrow from a certain location, a tapered shape in which the thickness gradually decreases from a certain location toward the tip, A round shape with a rounded tip, a shape obtained by combining these shapes, and the like may be mentioned, and may be selected as appropriate according to the purpose. Furthermore, there is no restriction | limiting in particular also about the number of doctor blades installed, and it may be singular or plural.

  Further, when scraping, when the same solvent as the ink component is sprayed on the surface of the removal plate cleaning substrate (5), the amount of ink that can be recovered increases as the scraping residue decreases, and the doctor blade ( 6) and foreign matter generation due to abrasion of the removal plate cleaning substrate (5) can be suppressed, which is more preferable.

  Next, as shown in FIG. 6, for example, the solid ink block (13) is put into a collection container (8) supplied with the same solvent as the ink component, and installed in the collection container (8). The solvent and the bulk ink (13) are mixed by stirring using the stirring device (9) thus prepared, and then the same component composition as that of the original ink is obtained. That is, an appropriate amount of various solvents are added using a solvent addition nozzle (7) or the like so that the same viscosity and solvent balance are obtained, and ink in unnecessary portions is regenerated. This step is called ink regeneration.

At this time, it is better to add a small amount of a leveling agent in addition to the solvent. The type of the leveling agent is not particularly limited, but it is preferable to use the same leveling agent as the ink component.
Moreover, there is no restriction | limiting in particular about the method of stirring, What is necessary is just to select suitably according to the objective. Specific methods include, for example, a method using a mechanical stirrer, a method using a magnetic stirrer, and a method of applying ultrasonic waves to a collection container.

  Finally, the recycled ink (14) is reused, and the pattern is formed on the second substrate by coating the blanket surface again, performing primary transfer to the removal plate, and performing secondary transfer to the glass substrate. To do.

  By using the removal plate cleaning method, the removal plate cleaning substrate, the ink recovery method, and the ink regeneration method as described above, a high-definition pattern can be obtained on the substrate at low cost.

  1 to 6 show an example in which the blanket, the removal plate, and the removal plate cleaning substrate are all flat, but there is no particular limitation on the shape and combination thereof. For example, there is no problem even if the blanket, the removal plate, and the removal plate cleaning substrate are all in a roll shape, or a combination of a flat plate removal plate, a roll removal plate cleaning substrate and a blanket may be used. . FIG. 7 shows an example where the blanket (2), the removal plate (3), and the removal plate cleaning substrate (5) are all in the form of a roll.

  <Example 1>

(Solid coating)
On the surface of a sheet-like blanket having a thickness of 100 μm and a material of polyethylene terephthalate (PET) coated with silicone with a thickness of 8 μm, the entire surface of the ink was coated with a thickness of 1 μm. At this time, the blanket silicone was acrylic tape No. 1 manufactured by Nitto Denko Corporation. Silicone having a tape peeling strength of 31 N and a width of 0.1 N / 25 mm and relatively small peeling was selected.

(Primary transfer)
Next, the blanket was pressure-bonded to and peeled from the removal plate having the stripe pattern, and unnecessary ink was transferred onto the convex portions of the removal plate. At this time, the material of the removal plate was selected from silicone having a tape peeling strength of 2.0 N / 25 mm width and a large peeling.
(Secondary transfer)
Further, by pressing and peeling the blanket and the glass plate which is the base material of the product, the necessary portion of the ink remaining on the blanket is transferred to the required place on the glass substrate, and a high-definition pattern is obtained. The substrate on which was formed was completed.

(Removed plate cleaning)
On the other hand, it is unnecessary to remain on the convex portion of the removal plate by press-bonding and removing the flat plate-shaped removal plate cleaning substrate and the removal plate made of glass having a tape peeling strength of 2.0 N / 25 mm width or more. All the ink in the portion was transferred from the removal plate convex portion to the removal plate washing substrate side.
(Ink recovery)
Next, using a doctor blade in which the tip edge shape is a stepped shape, the material is SUS420, and the tip portion is coated with a fluororesin, all of the block ink transferred onto the glass surface was scraped off.

(Regeneration of ink)
Furthermore, the lump-like ink scraped into a collection container supplied with the same solvent as the ink component and a small amount of leveling agent was added, and stirred by applying ultrasonic waves of 40 kHz.
Finally, measure the viscosity and drying speed of the ink, add the appropriate amount of various solvents, adjust the viscosity of the ink and the solvent composition balance, and recycle all unnecessary ink so that it can be reused. did.

By reusing the regenerated ink, coating on the blanket, primary transfer to the removal plate, and secondary transfer to the glass substrate were performed to prepare a second patterned substrate.
When the said patterning board | substrate was confirmed with the microscope, there was no conspicuous defect and it has confirmed that the regenerated ink was patterned without a problem.
As a result, a high-definition patterning substrate could be produced at low cost without wasting materials.
<Example 2>

In Example 1, the blanket has a thickness of 100 μm and a material of polyethylene terephthalate (PET) coated with silicone with a thickness of 5 μm, and the surface peel strength is 0.05 N / 25 mm width. Using a certain film, patterning and washing the removed plate in the same way, except using a photosensitive resin plate coated with a fluorine resin on the surface so that the peel strength of the surface is 0.5 N / 25 mm width. The ink recovered, regenerated and reused was reused to apply a blanket, perform a primary transfer to a removal plate, and perform a secondary transfer to a glass substrate to produce a second patterned substrate.
When the said patterning board | substrate was confirmed with the microscope, there was no conspicuous defect and it has confirmed that the regenerated ink was patterned without a problem. As a result, a high-definition patterning substrate could be produced at low cost without wasting materials.
<Comparative Example 1>

As the removal plate cleaning method, patterning, removal plate cleaning, and ink recovery were performed in the same manner as in Example 1 except that an adhesive tape was used instead of the removal plate cleaning substrate.
However, unnecessary ink once transferred to the adhesive film is integrated with the adhesive of the adhesive film. For this reason, it is very difficult to scrape only the ink with a doctor blade, and the ink cannot be collected. Therefore, unnecessary ink transferred to the adhesive film after remaining in the removed plate cannot be regenerated and is wasted. As a result, a high-definition patterning substrate could not be produced at low cost.
<Comparative Example 2>

After removing the same solvent as the ink component on the removal plate on which unnecessary ink is adhered, the ink is dissolved in the solvent to form an ink solution, and then the ink is removed using an air knife. The primary transfer and removal are the same as in Example 1 except that the solution is removed from the plate and the ink collection method is changed to the method of collecting the ink by collecting the ink solution. Plate washing and ink recovery were performed.
However, in the same solvent as the ink component, the dissolving power of the solvent with respect to the ink is insufficient, and the ink partially remains on the plate. As a result, it was not possible to perform removal plate cleaning that allows continuous high-definition patterning, and it was impossible to fabricate the second and subsequent patterning substrates.
<Comparative Example 3>

  After spraying methyl ethyl ketone, which is an organic solvent having a strong solvent power on the ink, onto the removal plate on which unnecessary ink is adhered, the ink is dissolved in the solvent to form an ink solution, and then the ink is used using an air knife. Example 1 except that the removal plate washing method is changed to a method of removing the solution from the plate, and the ink recovery method is further changed to a method of collecting the ink solution and directly collecting the ink from the removal plate. In the same way, primary transfer, removal plate washing, ink recovery and unnecessary ink regeneration were performed.

However, drying of the ink dissolved in methyl ethyl ketone was promoted by applying an air knife on the removal plate, and as a result, the ink dissolved in the solvent was deposited on the removal plate. Since they became unevenness of the removal plate, it was not possible to perform removal plate cleaning capable of high-definition patterning.
Furthermore, the regenerated ink containing a large amount of methyl ethyl ketone has a poor balance as an ink. Therefore, when the ink is applied to a blanket, the coated surface frequently repels. Subsequently, primary transfer and secondary transfer were performed. However, arc-shaped defects occurred in the pattern portion corresponding to the repelling portion, and as a result, high-definition patterning could not be performed.

DESCRIPTION OF SYMBOLS 1 ... Ink layer 2 ... Blanket 3 ... Removal plate 4 ... Product base material 5 ... Substrate for removal plate washing 6 ... Doctor blade 7 ... Solvent addition nozzle 8 .... Ink collection container 9 ... Stirrer 11 ... Necessary part of ink 12 ... Unnecessary part of ink 13 ... Bulk ink 14 ... Regenerated ink 21 ... Support layer 22 ... transfer layer 31 ... removed plate recess 32 ... removed plate protrusion 100 ... slit coater

Claims (6)

1) Solid coating that applies ink to the entire surface of the blanket surface having ink releasability,
2) Primary transfer that transfers only the unnecessary portion of the ink on the blanket surface to the convex portion of the removal plate and forms a pattern of the necessary portion of ink on the blanket surface;
3) A secondary transfer in which a pattern made of the necessary portion of ink formed on the blanket surface is transferred onto the substrate, and a pattern made of the required portion of ink is formed on the substrate.
4) A reversal letterpress printing method comprising a step of washing a removed plate to remove ink of an unnecessary portion transferred to the raised portion of the removed plate,
The removal plate cleaning method eliminates the need to transfer the protrusion plate surface of the removal plate onto which the unnecessary portion of ink has been transferred and the removal plate cleaning substrate after pressure bonding to each other, and then to the protrusion portion of the removal plate. A cleaning method for removing a plate, wherein the ink is transferred onto a substrate for cleaning the removing plate and then cleaned.   The removal plate cleaning substrate according to claim 1, wherein the substrate surface is smooth and has a tape peeling strength larger than that of the removal plate protrusion.   A method for recovering ink, characterized in that an unnecessary portion of ink is recovered in a lump by scratching the substrate for cleaning a removal plate according to claim 1 or 2.   The component composition of the bulk ink recovered using the ink recovery method of claim 3 is adjusted and regenerated so that it becomes the original ink component composition before the ink is applied to the entire surface of the blanket surface. Characteristic ink regeneration method. 1) Solid coating that applies ink to the entire surface of the blanket surface having ink releasability,
2) Primary transfer in which only unnecessary portions of the ink on the blanket surface are transferred to the convex portions of the removal plate to form a pattern comprising the necessary portion of ink on the blanket surface;
3) A secondary transfer in which a pattern made of the necessary portion of ink formed on the blanket surface is transferred onto the substrate, and a pattern made of the required portion of ink is formed on the substrate.
4) A removal plate washing apparatus used in a reverse relief printing method comprising a step of washing a removal plate to remove ink of unnecessary portions transferred to the projections of the removal plate,
A) A mechanism in which a plate-shaped removal plate and a plate-shaped removal plate cleaning substrate are bonded to each other and then peeled off. B) A doctor blade on the removal plate cleaning substrate,
C) Mechanism for stirring unnecessary ink scraped and collected by the doctor blade and at least the same solvent as the ink component,
D) Mechanism for adding appropriate amounts of various solvents,
A removal plate cleaning device characterized by comprising: 1) Solid coating that applies ink to the entire surface of the blanket surface having ink releasability,
2) Primary transfer that transfers only the unnecessary portion of the ink on the blanket surface to the convex portion of the removal plate and forms a pattern of the necessary portion of ink on the blanket surface;
3) A secondary transfer in which a pattern made of the necessary portion of ink formed on the blanket surface is transferred onto the substrate, and a pattern made of the required portion of ink is formed on the substrate.
4) A removal plate washing apparatus used in a reverse relief printing method comprising a step of washing a removal plate to remove ink of unnecessary portions transferred to the projections of the removal plate,
A) A mechanism in which a roll-shaped removal plate and a removal plate cleaning roll in contact with the removal plate rotate synchronously,
B) A doctor blade on the removal plate cleaning roll,
C) Mechanism for stirring the unnecessary ink scraped and collected by the doctor blade and at least the same solvent as the ink component,
D) Mechanism for adding appropriate amounts of various solvents,
A removal plate cleaning device characterized by comprising:

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