JP4918785B2 - Printing method and printing apparatus - Google Patents

Description

The present invention relates to a printing method and a printing apparatus for forming a high-definition pattern on a flexible substrate such as a plastic film, particularly a long plastic film having a high production efficiency.

In recent years, flat panel displays have been used as image display devices for various uses such as stationary, wall-mounted, and portable types in terms of energy saving, space saving, and portability.
In particular, in the portable type, there is a demand for plasticization from the viewpoints of impact resistance that does not break even when dropped while carrying, light weight, and thinning.
In addition, the wall-hanging type also has a demand for a flexible display from the viewpoint of installing the display on a columnar column.

However, all of the conventional flat panel displays are manufactured on a glass substrate, and it is difficult to manufacture on a plastic substrate.
The reason is that the production of the members of the conventional flat panel display includes a heating process and a photolithography process at a high temperature.
For example, in manufacturing a color filter for a liquid crystal display, there are processes such as development, washing and baking in patterning a photosensitive resin, which causes damage and expansion / contraction of the plastic substrate.
Moreover, in the manufacturing process of the thin film transistor which is a drive electrode of the display, the formation of the silicon semiconductor and the insulating film includes a high temperature process of 300 ° C. or more, which exceeds the heat resistance of the plastic substrate.
In addition, since the photolithography process performs film formation, exposure, development, and peeling for each material, the manufacturing equipment becomes large and the manufacturing cost is high.

From the above, there has been a demand for a printing method capable of precise patterning on plastic.

As one of printing methods, an inkjet method has been studied.
The ink-jet method is expected as the simplest patterning method because a predetermined material can be patterned only in a predetermined portion, so that the use efficiency of the material is high and a plate is not used.
However, the diameter of ink droplets of the current inkjet is about several tens of μm, and the landing accuracy is about several μm.
In order to perform precise patterning using the inkjet method, barrier ribs must be formed on a substrate in advance by a photolithography process, and a pattern of about 10 μm such as a black matrix of a color filter or a thin film transistor wiring of a printing method is formed. It cannot be adopted as a method.

Examples of methods other than the inkjet method include screen printing.
The screen printing method has been put to practical use in the printing of wirings, resistors and dielectrics in electronic parts.
However, since it is stencil printing, the ink is limited to a paste-like high-viscosity ink. Even if it can be used as a printing method for a thick film of about several tens of μm due to the fineness of the screen mesh, it is still about 10 μm. It cannot be adopted as a method for forming a pattern.

As a method other than the ink jet method and the screen printing method, an inversion printing method has been attempted.

In the reverse printing method, ink is applied onto a blanket wound around a cylinder, preliminarily dried to form an ink liquid film, and then the relief printing on which the non-image area pattern is formed is pressed against the ink liquid film. In this printing method, the image pattern is formed on the substrate, and finally, the image pattern on the blanket is transferred onto the substrate to be printed to form the image pattern on the substrate to be printed. (See Patent Document 1)

In the reverse printing method, it is easy to adjust the ink film thickness.
Further, since the image pattern is formed on the ink-peelable blanket, the ink transfer property to the substrate to be printed is good.
Further, it is possible to form a fine pattern with a thin film.

JP 2001-56405 A

However, the reverse printing has a problem that the ink wettability and transferability of the blanket surface become unstable when the ink is pre-dried on a blanket made of silicone rubber or silicone resin.

The subject of this invention is providing the printing method and printing apparatus which form a high-definition pattern in a flexible base material like a plastic film, especially the elongate flexible base material which is excellent in production efficiency.

According to the first aspect of the present invention, there is provided an ink liquid film forming step of forming an ink liquid film on an ink-peelable glass substrate having a silicone resin laminated on the surface, and a rotatable cylindrical plate on the ink liquid film. The non-image pattern of the ink liquid film is transferred to the convex portion of the resin relief plate by contacting the convex portion of the resin relief plate mounted on the cylinder, and the image pattern is formed on the ink-peelable glass substrate. An image pattern forming step to form, a printing method having an image pattern transfer step of transferring an image pattern onto a flexible substrate to be printed by contacting the image pattern with the flexible substrate to be printed, The ink liquid film forming step is an ink liquid film forming step in which an ink liquid film is formed by applying and pre-drying ink onto an ink peelable glass substrate fixed on a movable stage, image In the turn transfer process, the flexible printing substrate is sent out from the feeder, and the flexible printing substrate is made to run by being pressed by a back roll and brought into contact with the image pattern while running. The printing method is a step of transferring an image pattern onto a substrate to be printed.

The invention according to claim 2 is characterized in that at least one of an alkyl group, a siloxane group, and a fluorine atom is chemically bonded to the ink-peelable glass substrate via a silane coupling agent. The printing method described.

According to a third aspect of the invention is a printing method according to any one of claims 1 or 2, characterized by providing an ink-receiving layer on the printing surface of the flexible substrate to be printed.

The invention according to claim 4 is a printing method that cleans up the non-image pattern remaining on the convex portions of the resin relief plate after the image pattern forming step, and uses the resin relief plate again, and is more adhesive than the feeder. The resin-made base material is sent out, and the resin-made base material is transferred by pressing the back roll to contact the non-image pattern and transferring the non-image pattern onto the pressure-sensitive adhesive base material while running the sent adhesive base material. a printing method according to any one of claims 1 to 3, characterized in that to clean up the non-image pattern from the convex portion of the letterpress.

The invention according to claim 5 is a means for forming an ink liquid film on an ink peelable glass substrate, a means for pre-drying the ink to form an ink liquid film, and removing a non-image pattern from the ink liquid film. A resin relief plate for forming an image pattern, a resin relief fixing roll for fixing the resin relief plate, a flexible printing substrate, and an image pattern on the flexible printing substrate And a means for cleaning up the non-image pattern from the resin relief printing plate, wherein the means for forming an ink liquid film on an ink releasable glass substrate comprises: A movable stage on which a glass substrate can be fixed, a coating die for applying ink to the ink-peelable glass substrate, and means for transferring an image pattern to a flexible substrate to be printed , The flexible covering A back roll for pressing the printing substrate against the image pattern, a feeder for the flexible substrate to be printed, and a holder for the flexible substrate to be printed on which the image pattern is formed, and the non-image pattern Means for cleaning up from the resin relief plate, an adhesive substrate, a cleanup roll for pressing the adhesive substrate against the non-image pattern, a feeder of the adhesive substrate and the non-image A printing apparatus comprising a holder for an adhesive substrate to which a pattern is attached.

The invention of claim 1 is an ink liquid film forming step for forming an ink peeling layer on an ink peelable glass substrate,
A non-image part pattern of the ink liquid film is brought into contact with a convex part of a resin relief plate that becomes a non-image part pattern mounted on a rotatable cylindrical plate cylinder. An image pattern forming step of forming an image pattern on the glass substrate by transferring to the convex portion of
A printing method comprising an image pattern transfer step of transferring an image pattern onto a flexible printing substrate by contacting the image pattern with the flexible printing substrate,
The ink liquid film forming process is an ink liquid film forming process in which an ink liquid film is formed by applying and pre-drying ink onto a peeling substrate fixed on a movable stage;
In the image pattern transfer process, the flexible printing substrate is fed out from a feeder, and the flexible printing substrate that has been fed out is run while being pressed by a back roll to come into contact with the inverted image pattern. By adopting a process of transferring an image pattern onto a flexible substrate, it is possible to improve the ink wettability and transferability of the ink liquid film.
In addition, a high-definition pattern can be printed on a flexible substrate to be printed such as a plastic film, particularly a long plastic film.

The invention of claim 2 is characterized in that the wettability of the ink liquid film on the surface of the ink releasable glass substrate is deteriorated by laminating a silicone resin on the surface of the ink releasable glass substrate. The transferability of the ink liquid film from the resin to the letterpress can be improved and high-definition patterns can be printed.

According to a third aspect of the present invention, the ink liquid film on the glass substrate is wetted by chemically bonding at least one of an alkyl group, a siloxane group, and a fluorine atom to the ink-peelable glass substrate via a silane coupling agent. It is possible to improve the transferability of the ink liquid film from the glass substrate to the resin relief plate and to print a high-definition pattern.

In the invention of claim 4, by providing an ink adhesion layer on the printing surface of the flexible substrate to be printed, the transfer property of the ink liquid film from the resin relief printing plate to the flexible substrate to be printed is improved. High-definition patterns can be printed.

The invention of claim 5 is a reversal printing method that cleans up the non-image portion pattern remaining on the convex portions of the resin relief plate after the reverse image pattern forming step, and uses the resin relief plate again, from a feeder The adhesive base material is sent out, while the fed adhesive base material is run, the back roll is pressed to contact the non-image pattern and transfer the non-image pattern onto the adhesive base material. By cleaning up the non-image part pattern from the convex part of the relief plate,
When printing continuously, only a new ink liquid film (without an old ink liquid film remaining in the previous printing) can be formed on the glass plate, and the print reproducibility can be improved.

According to a sixth aspect of the present invention, there is provided means for forming an ink liquid film on a peeling substrate, means for pre-drying the ink to form an ink liquid film, and removing the non-image pattern from the ink liquid film to form an image pattern. A resin relief plate for forming, a resin relief fixing roll for fixing the resin relief plate, a flexible printing substrate, and a means for transferring an image pattern to the flexible printing substrate A printing apparatus having means for cleaning up the non-image pattern from the resin relief printing plate,
Means for forming an ink liquid film on a peeling substrate, a movable stage, an ink peeling glass substrate that can be fixed to the movable stage, and a coating for applying ink to the ink peeling glass substrate Die and
Means for transferring an image pattern to a flexible substrate, a back roll for pressing the flexible substrate against a reverse image pattern, a feeder of the flexible substrate, and the image As a holder of a flexible substrate to be printed on which a pattern is formed,
Means for cleaning up the non-image pattern from the resin relief printing plate, an adhesive substrate, a cleanup roll for pressing the adhesive substrate against the non-image pattern, and a feeder for the adhesive substrate By using the adhesive substrate holder to which the non-image pattern is attached, a high-definition pattern having excellent reproducibility can be printed on a flexible substrate such as a plastic film, particularly a long plastic film.

An example of the printing method of the present invention will be described with reference to FIG.

First, the ink peelable surface 2 is formed on the glass substrate 1. (Fig. 1 (a))

A glass substrate generally has a large surface energy as long as it is a clean surface, and various inks are easily wetted, but ink separation is not good.
Therefore, the ink peelable surface 2 is formed on the glass substrate in accordance with the ink used for printing.

As a material for the ink releasable surface 2, a silicone resin can be used.
The thickness of the silicone resin layer can be 500 μm or less, preferably 100 μm or less, more preferably 10 μm or less.
When the thickness of the silicone resin layer exceeds 500 μm, the flatness of the glass serving as the substrate is impaired and printing pressure unevenness is likely to occur, and the solvent or resin component of the ink component excessively penetrates into the silicone resin layer.
The solvent and resin content of the ink component that has penetrated into the silicone resin layer change the printing conditions.
In order to perform more stable printing, it is necessary to reduce the influence of the solvent and resin component of the ink component that has penetrated into the silicone resin layer, and the thickness of the silicone resin layer is preferably 500 μm or less.

Moreover, as a material of the ink peelable surface 2, a silane coupling agent can also be used.
Examples of the silane coupling agent include trimethoxysilanes and triethoxysilanes.
As one site of the silane coupling agent, a reactive group with an organic compound such as a vinyl group, an epoxy group, an amino group, a methacryl group, or a mercapto group can be selected.
In addition, an alkyl group, a group in which a fluorine atom is partially substituted, or a substituent capable of forming a surface with a small surface energy by bonding with siloxane can be selected.
When a silane coupling agent having a reactive group is used, after the surface of the glass substrate is treated with the silane coupling agent, other monomer components may be applied and bonded so as to have a predetermined surface free energy. good.
Examples of the silane coupling agent having a reactive group include vinyl methoxy silane, vinyl ethoxy silane, p-styryl trimethoxy silane, 3-glycidoxy propyl trimethoxy silane, 2- (3,4 epoxy cyclohexyl) ethyl trimethoxy silane. , 3-methacryloxypropylmethyldiethoxysilane, 3-acryloxypropyltrimethoxysilane, etc., and monomers include styrene, ethylene glycol diglycidyl ether, trimethylpropane triglycidyl ether, lauryl acrylate, dipentaerythritol Hexaacrylate or the like can be used.
As the silane coupling agent having no reactive group, methyltrimethoxysilane, n-hexyltrimethoxysilane, n-octyltrimethoxysilane, dodecyltrimethoxysilane and the like can be used.
However, it is not limited to an alkyl group.
As a result, it is possible to form an ink releasable surface 2 having flatness and having substantially no penetration of ink components with a film thickness at a molecular level, and stable printing can be performed.

As a method for immobilizing the silane coupling agent on the glass substrate 1, a solution obtained by diluting the silane coupling agent in water, acetic acid water, a water-alcohol mixed solution, or an alcohol solution is spin-coated or roll-coated. A method of applying and drying the glass surface using an applicator method or the like can be used.

The wettability of the ink peelable surface 2 is such that the contact angle when ink is dropped onto the ink peelable surface 2 is preferably 10 ° or more and 90 ° or less, and more preferably 20 ° or more and 70 ° or less. .
If the contact angle is smaller than 10 °, the releasability of the ink liquid film 3 from the ink releasable surface 2 is lowered, and pattern defects (such as poor reproducibility) are likely to occur. If the contact angle is larger than 90 ° When forming the ink liquid film, repelling occurs, making it difficult to form a uniform ink liquid film 30.

Next, an ink liquid film 30 is formed on the ink peelable surface 2. (Fig. 1 (b))

As a material for the ink liquid film 30, in addition to organic ink materials in general, various additives are added to metal fine particle dispersions such as gold, silver, copper, nickel, platinum, palladium, and rhodium as necessary. Can be used.
As the dispersion medium, water or alcohol can be used.

As a method for forming the ink liquid film 30 on the ink releasable surface 2, after using a spin coating method, a die coating method, a cap coating method, a roll coating method, an applicator method, a spray coating method, a dispenser method, etc. A drying method can be used.
Among them, the spin coat method, die coat method, cap coat method, roll coat method, and applicator method can form a uniform ink liquid film for inks with a wide range of viscosity, and among them, the movable ink peeling surface 2 In the case of continuously forming upward, the die coating method is the most efficient and preferable method.

As a pre-drying method, a natural drying method, a cold air drying method / a warm air drying method, a microwave drying method, a vacuum drying method, a radiation drying method such as an ultraviolet ray or an electron beam, and the like can be used.

The purpose of preliminary drying is to increase the viscosity, thixotropy and brittleness of the ink liquid film 30.
If the preliminary drying is insufficient, the ink relief film 30 is torn when the resin relief plate 23 is brought into contact with the ink relief film 30 and then peeled off. The ink liquid film 30 cannot be transferred thereon.

Next, the resin relief plate 23 is brought into contact with the ink liquid film 30 to transfer the non-image portion pattern 39 onto the resin relief plate 23, thereby forming the image portion pattern 31 on the ink peelable surface 2. (Fig. 1 (d))

As a material for the resin relief plate 23, nylon, acrylic, silicone resin, styrene-diene copolymer, ethylene propylene-based, butyl-based, urethane-based rubber, or the like can be used.

As a method for producing the resin relief plate 23, a method of pouring resin into a mold, a method of engraving, or the like can be used.

Next, the ink receiving layer 6 is formed on the flexible substrate 5 to be printed.

As the material of the flexible substrate 5 to be printed, other than a material having no flexibility such as glass, it may be selected according to the drying temperature of the ink. Polyethylene terephthalate, polyethylene naphthalate, poly Films and sheets of ether sulfone, cycloolefin polymer, polyimide, nylon, aramid, polycarbonate, polymethyl methacrylate, polyvinyl chloride, triacetyl cellulose, etc. can be used, among which heat-resistant polyethylene naphthalate, polyether Sulphone, cycloolefin polymer, polyimide and the like are suitable.
Moreover, the thing which added the inorganic filler to the said resin and improved heat resistance may be used.
The film and sheet may be stretched or unstretched.
In addition, a gas barrier layer, a smoothing layer, and a sliding layer may be laminated on the flexible substrate 5 as necessary.

Materials for the ink receiving layer 6 include resin components such as polyvinyl alcohol, polyester resin, acrylic resin, methacrylic resin, and acetal resin, and fillers such as silica, alumina, calcium carbonate, silicate, calcium silicate, and polystyrene. A material to which components are added, or a material composed of an urethane resin emulsion, gelatin, a hardener, or the like can be used.

As a method for forming the ink receiving layer 6 on the flexible substrate 5 to be printed, a spin coating method, a die coating method, a cap coating method, a roll coating method, an applicator method, a spray coating method, a dispenser method, or the like was used. Thereafter, a drying method can be used.

Finally, the image portion pattern 31 is pressed on the ink receiving layer 6 by the back roll 26, thereby forming the image portion pattern 32 on the ink receiving layer 6. (Fig. 2 (f))

An example of cleaning up the non-image portion pattern 39 from the resin relief plate 23 of the present invention will be described with reference to FIG.

First, the non-image part pattern 39 on the resin relief plate 23 is brought into contact with the adhesive substrate 25. (Fig. 2 (e))

As a material of the adhesive substrate 25, an adhesive sheet made of acrylic, olefin, polyurethane, silicone, synthetic rubber or the like can be used.

As a method for bringing the non-image part pattern 39 into contact with the adhesive substrate 25, a method of pressing the non-image part pattern 39 against the adhesive substrate 25 with the cleanup roll 24 can be used.

Finally, the adhesive relief plate 23 is removed from the resin relief plate 23 to clean up the resin relief plate 23. (Fig. 2 (f))

As a method of separating the adhesive substrate 25 from the resin relief plate 23, a method of separating the cleanup roll 24 from the resin relief plate 23 can be used.

Next, an example of the printing apparatus of the present invention will be described with reference to FIG.

The printing apparatus includes a movable stage 40, a coating die 21, a resin relief plate 23, a resin relief plate fixing roll 22 for fixing the resin relief plate 23, a cleanup roll 24, a back roll 26, and an ink release surface. A glass substrate 1 having 2 is disposed.

The movable stage 40 can be driven by a ball screw or a linear motor.
The movable stage 40 can reciprocate while maintaining at least the horizontal direction, and the glass substrate 1 is fixed to the movable stage 40.

A predetermined ink can be supplied to the coating die 21 from a separately prepared ink supply pump.
The distance between the die head of the coating die 21 and the ink peelable surface 2 is set before the start of printing.
A mechanism for adjusting the distance between the ink peelable surface 2 and the die head by moving the die head up and down in accordance with the conveyance of the movable stage 40 may be provided.

When the ink peelable surface 2 reaches below the coating die 21 by the transport of the movable stage 40, ink discharge is started from the coating part die head to form the ink liquid film 30 on the ink peelable surface 2. .

The ink peelable surface 2 is conveyed in the direction of the resin relief fixing roll 22, but a dryer such as an oven, a hot air blower, a vacuum dryer, or an ultraviolet irradiator may be provided on the way.

A resin relief plate 23 is fixed to the resin relief plate fixing roll 22.
The resin-made relief fixing roll 22 may be provided with a mechanism for moving up and down in accordance with the transport state of the movable stage 40.

The non-image portion pattern 39 of the ink liquid film 30 in contact with the resin relief plate 23 fixed to the resin relief plate fixing roll 22 by rotating the resin relief plate fixing roll 22 in accordance with the conveyance of the movable stage 40, Transfer to the resin relief plate 23.

The flexible substrate 5 having the ink receiving layer 6 can be brought into contact with the image pattern 31 by the back roll 26.
By the rotation of the back roll 26, the ink liquid film 30 formed on the ink peelable surface 2 can be transferred to the ink receiving layer 6 on the flexible substrate 5 to obtain a printing pattern.

Next, an example of an apparatus for cleaning up the non-image portion pattern 39 attached to the resin relief plate 23 will be described with reference to FIG.

The cleanup roll 24 is in contact with the resin relief plate 23 via the adhesive substrate 25, and the rotation of the cleanup roll 24 causes the non-image area pattern 39 on the resin relief plate 23 to be made of an adhesive tape or the like. It can transfer to the adhesive base material 25 and the non-image part pattern 39 can be cleaned up from the resin relief plate 23.

First, a mixture having the following composition was stirred and mixed uniformly, then dispersed with a sand mill for 5 hours using glass beads having a diameter of 1 mm, and then filtered with a 5 μm mesh filter to prepare a red pigment dispersion.
C. I. Pigment Red 254 (Ciba Specialty Chemicals)
Iruga Four Red B-CFJ) 18 parts by weight C.I. I. Pigment Red 177 (Chromotar Red A2BJ, manufactured by Ciba Specialty Chemicals) 2 parts by weight / acrylic varnish (solid content 20%) 108 parts by weight

Next, the mixture having the following composition was stirred and mixed to be uniform, and then filtered through a 5 μm mesh filter to obtain a red ink for a color filter.
-100 parts by weight of the above-mentioned red pigment dispersion-20 parts by weight of methylated methylol melamine: MW-30 (manufactured by Sanyo Kasei Co., Ltd.) 85 parts by weight of propylene glycol monomethyl ether, 45 parts by weight of propylene glycol monomethyl ether acetate

The surface of the ink-removable glass substrate was treated as follows.
A solution in which n-hexyltrimethoxysilane was dissolved in isopropyl alcohol was applied on a glass substrate having a thickness of 700 μm using a spin coating method, and then dried at 120 ° C. to form an ink-peelable surface.

Next, after applying red ink for color filters on an ink-peelable glass substrate, it was preliminarily dried at 60 ° C. to form a red ink liquid film for color filters.

Next, the convex part of the flexographic plate (manufactured by Toyobo Co., Ltd.) was brought into contact with the ink liquid film and then released to form an image pattern on the ink-peelable glass substrate.

Finally, PEN (polyethylene naphthalate) (made by Teijin DuPont) on the image pattern
Were contacted to form an image pattern on the PEN substrate.

Next, a solution in which dodecyltrimethoxysilane was dissolved in isopropyl alcohol was applied on a glass substrate having a thickness of 700 μm by using a spin coating method, and then dried at 120 ° C. to form an ink peelable surface.

Next, a conductive ink composed of a silver particle aqueous dispersion (average particle size 20 nm) (volume average particle size (Dv)) is applied onto an ink-peelable glass substrate, and then pre-dried at 60 ° C. A liquid film was formed.

Next, the convex part of the flexographic plate (manufactured by Toyobo Co., Ltd.) was brought into contact with the ink liquid film and then released to form an image pattern on the ink-peelable glass substrate.

Next, an acrylic water-based emulsion material was applied onto polyethylene terephthalate (PET) with a bar coater and then dried at 60 ° C. to form an ink receiving layer laminate.

Finally, polyethylene terephthalate (PET) (manufactured by Toray Industries) on the image pattern
Were contacted to form an image pattern on the PEN substrate.

In Example 1 and Example 2, a high-definition pattern having excellent reproducibility could be printed stably.

The printing method and printing apparatus of the present invention can stably perform high-definition pattern thin film printing on a flexible substrate such as a plastic film, especially a long flexible substrate. Color filter members such as matrix, color pattern, spacer,
Transistor members such as gate electrodes, source electrodes, drain electrodes, gate insulating films, organic semiconductor materials,
It can be used for production of a polymer organic EL member such as a light emitting layer.

It is sectional drawing for demonstrating an example of the printing method and printing apparatus of this invention. It is sectional drawing for demonstrating an example of the printing method and printing apparatus of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Glass substrate 2 ... Ink peelable surface 5 ... Flexible printing substrate 6 ... Ink receiving layer 21 ... Coating die 22 ... Resin Letterpress fixing roll 23 ... Resin letterpress 24 ... Cleanup roll 25 ... Adhesive substrate 26 ... Back roll 30 ... Ink liquid film 31 ... Image pattern 32 ... Image pattern 39 ... non-image part pattern 40 ... movable stage

Claims (5)

An ink liquid film forming process for forming an ink liquid film on an ink peelable glass substrate having a silicone resin laminated on the surface;
The non-image pattern of the ink liquid film is transferred to the convex part of the resin relief plate by contacting the convex part of the resin relief plate mounted on the rotatable cylindrical plate cylinder with the ink liquid film. An image pattern forming step of forming an image pattern on the ink-removable glass substrate;
A printing method comprising an image pattern transfer step of transferring an image pattern onto a flexible printing substrate by contacting the image pattern with the flexible printing substrate,
The ink liquid film forming process is an ink liquid film forming process in which an ink liquid film is formed by applying and pre-drying ink onto an ink-peelable glass substrate fixed on a movable stage;
In the image pattern transfer step, the flexible printing substrate is fed out from a feeder, and the flexible printing substrate that has been fed out is run while being pressed by a back roll and brought into contact with the image pattern. A printing method comprising a step of transferring an image pattern onto a flexible substrate to be printed.   2. The ink-peelable glass substrate is obtained by chemically bonding at least one of an alkyl group, a siloxane group, and a fluorine atom to a glass substrate surface via a silane coupling agent. Printing method.   The printing method according to claim 1, wherein an ink receiving layer is provided on a printing surface of the flexible substrate to be printed.   The non-image pattern remaining on the convex portions of the resin relief plate after the image pattern forming step is cleaned up again, and is a printing method using the resin relief plate, and the adhesive substrate is sent out from the feeder and sent out. While running the adhesive substrate, press the back roll to contact the non-image pattern and transfer the non-image pattern onto the adhesive substrate, thereby transferring the non-image pattern from the convex portion of the resin relief plate. The printing method according to claim 1, wherein cleaning is performed. Means for forming an ink liquid film on an ink-releasable glass substrate, means for pre-drying the ink to form an ink liquid film, and forming an image pattern by removing a non-image pattern from the ink liquid film A resin relief plate, a resin relief fixing roll for fixing the resin relief plate, a flexible printing substrate, a means for transferring an image pattern to the flexible printing substrate, and the non-image A printing apparatus having a means for cleaning up the pattern from the resin relief plate, wherein the means for forming an ink liquid film on the ink-removable glass substrate is movable on which the ink-removable glass substrate can be fixed A stage and a coating die for coating ink on the ink-removable glass substrate ;
A means for transferring an image pattern to a flexible printing substrate, a back roll for pressing the flexible printing substrate against the image pattern, a feeder for the flexible printing substrate, and the image pattern Having a holder for a flexible substrate to be printed,
Means for cleaning up the non-image pattern from the resin relief printing plate includes an adhesive substrate, a cleanup roll for pressing the adhesive substrate against the non-image pattern, and a feeder for the adhesive substrate And a sticking substrate holder to which the non-image pattern is attached.

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