JP2011219544A - Printing ink composition and method for producing printed matter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an ink composition that has superior coating properties on printing plates and superior fine pattern formation and is suitable for a method for manufacturing a specific printed matter, a method for producing a printed matter using the same, a printing plate for forming a surface smooth pattern, an original plate for a printing plate and a printing method.SOLUTION: The printing ink composition to be used for a method for producing a printed matter comprising at least a step for coating the whole area of a printing plate having an ink-releasing part and an inkphilic part on a substrate with ink and a step for selectively transferring the ink on ink-releasing part to an object base material includes at least a nonvolatile component, a solvent and a polar group modified silicone.

Description

  The present invention relates to a printing ink composition and a method for producing a printed material. More specifically, the present invention relates to a printing ink composition suitably used for fine pattern printing for use in electronic equipment and a method for producing a printed matter.

  In recent years, electronic devices such as flat panel displays, solar cells, and radio frequency identification (RF-ID) have attracted attention. Conventionally, fine patterns such as wiring of electronic devices, thin film transistor (TFT) electrodes, or color filters have been formed by photolithography. However, in recent years, a technique for forming a fine pattern by a printing method for printing a functional ink or a functional paste has been studied. Since the pattern can be directly formed by the printing method, the number of processes is reduced compared to the photolithography method, and the manufacturing cost can be reduced. In addition, problems such as developing waste liquid are eliminated and it is environmentally friendly. Furthermore, since printing on a plastic substrate is easy, this is an effective method for making electronic devices flexible.

  As a fine pattern printing method, (1) Resin (ink) is applied to a printing plate that has an image area with a resin-repellent (ink releasability) function and a non-image area with an oleophilic (ink-insensitive) function. (2) Pressing an image transfer sheet having a resin repellency function (ink releasability) weaker than the resin repellency function (ink releasability) of the printing plate against the printing plate, to apply the resin (ink) on the image area A peeling offset printing method has been proposed which includes a step of transferring to an image transfer sheet and (3) a step of transferring a resin (ink) on the image transfer sheet onto a substrate (see, for example, Patent Document 1). According to this method, there is no missing pattern in the solid portion as seen in the reverse offset printing method (see, for example, Patent Document 2). Here, a method of omitting the step (3) using the image transfer sheet in the step (2) as a substrate is also conceivable, and the resin (ink) remaining on the printing plate after the step (2) is considered. ) Has also been proposed (Patent Document 3). And the ink composition for peeling printing is proposed (for example, refer patent document 4).

JP 2004-249696 A JP-A-11-58921 Japanese Patent Publication No. 8-3068 JP 2009-221250 A

  In the peeling offset printing method, it is necessary to uniformly apply ink to the image line portion having a resin-repellent function on the printing plate. Also, the applied ink must be completely transferred from the printing plate to the image transfer sheet. The present inventors considered that it is important to satisfy these two problems simultaneously.

  However, in the ink composition for release printing described in Patent Document 4, the application property to the image line portion having a resin-repellent function on the printing plate is insufficient, and repelling is often observed. In printing plates that have an ink releasable part with a resin-repellent function and an ink-philic part with a parent resin function at the same time, the ink composition easily collects at the ink-philic part that has a high affinity with the resin, and the ink releasability. It seems that the repelling of the part tends to be large. The present invention is suitable for a printing method for forming a specific fine pattern, which is excellent in coating property on an image line portion having a resin-repellent function on a printing plate and transferability from a printing plate to an image transfer sheet. The present invention relates to the provision of an ink composition. The present invention also relates to a method for producing a printed material using the ink composition.

  The present invention includes a step of applying ink to the entire surface of a printing plate having an ink releasable site and an ink-philic site on a support, and a step of selectively transferring the ink on the ink releasable site to a target substrate. A printing ink composition used in a method for producing a printed material having at least the printing ink composition, wherein the printing ink composition contains at least a nonvolatile component, a solvent, and a polar group-modified silicone. It is a thing.

  The present invention also includes a step of applying an ink containing at least a non-volatile component, a solvent, and a polar group-modified silicone to the entire surface of a printing plate having an ink releasable part and an ink-philic part on a support, and the ink peeling. It is a manufacturing method of the printed matter manufactured by the printing method which has at least the process of selectively transferring the ink on a property part to an object base material.

  By using the ink composition of the present invention, a uniform coating can be applied to the entire surface of a printing plate having an ink-peelable image area and an ink-free non-image area on the support while suppressing defects such as repellency. A film can be formed. Further, by using the ink composition of the present invention, it is possible to completely transfer the ink on the image-removable image area to the target substrate. This ink composition is suitable for a specific printing method in which the ink on the ink peelable portion is selectively transferred to a target substrate, and a high-definition pattern without film thickness unevenness can be obtained by this printing method. This makes it possible to easily and inexpensively manufacture an electronic device having electrical characteristics or optical characteristics similar to those manufactured by the photolithography method.

It is the schematic which shows an example of the printing method of this invention. It is the schematic which shows another example of the printing method of this invention.

  First, the printing method of the present invention will be described. The printing method of the present invention includes a step of applying ink to the entire surface of a printing plate having an ink-removable part and an ink-philic part on a support, and selectively transferring the ink on the ink-removable part to a target substrate. At least the process of performing.

  FIG. 1 is a schematic view showing an example of the printing method of the present invention. (A) The printing plate precursor having at least the parent ink layer 2 and the ink release layer 3 in this order on the support 1 is patterned to obtain a printing plate on which an ink release portion and an ink affinity portion are formed. (B) Ink 4 is applied to the entire surface of the printing plate using a blade coater 5. (C) The silicone blanket 7 wound around the transfer cylinder 6 is pressed against the printing plate to selectively transfer the ink (ink 4 'on the image area) on the ink peelable portion. Here, selectively transferring the ink on the ink peelable portion (ink 4 ′ on the image area) does not substantially transfer the ink 4 ″ on the non-image area, and substantially transfers the ink peelable portion. This means that only the upper ink (ink 4 'on the image area) is transferred. (D) The ink (ink 4' on the image area) transferred on the silicone blanket 7 is retransferred to the substrate 8. The print pattern 9 is formed.

  FIG. 2 is a schematic view showing another example of the printing method of the present invention. (A) The printing plate precursor having at least the parent ink layer 2 and the ink release layer 3 in this order on the support 1 is patterned to obtain a printing plate on which an ink release portion and an ink affinity portion are formed. (B) Ink 4 is applied to the entire surface of the printing plate using a blade coater 5. (C) The release film 10 on which the resin-repellent coating has been applied is pressed against the printing plate while applying pressure with the impression cylinder 11 to selectively transfer only the ink on the ink-peelable portion, thereby forming the print pattern 12. Here, as the release film coated with the resin-repellent film, a film having an ink release property lower than the ink release property of the printing plate and higher than the ink release property of the ink-philic part is selected.

  Next, the ink composition of the present invention will be described. The ink composition of the present invention contains at least a nonvolatile component, a solvent, and a polar group-modified silicone.

  The non-volatile component remains after the heat treatment of the printed matter and expresses some function, for example, an electrical function or an optical function of the electronic component, and is selected according to each purpose. (I) Conductive polymers such as metal fine particles, metal oxide fine particles, carbon powder, carbon nanotubes and carbon nanotubes and polythiophene and polyaniline in conductive ink (paste), (ii) organic such as polythiophene in semiconductor ink Semiconductor material, fullerene derivative, carbon nanotube, silicon semiconductor fine particle, compound semiconductor fine particle, oxide semiconductor fine particle, polysilane and polygermane, (iii) resin such as acrylic resin, epoxy resin, phenol resin in resist ink, (iv) color filter Various colored pigments of red (R), green (G), and blue (B) in manufacturing inks, black pigments such as carbon black and titanium black for forming a black matrix, (v) organic EL elements Luminescent materials and charge transport materials in manufacturing inks, epoxy resin, acrylic resin, polyimide, an insulating material such as a polysiloxane is exemplified in (vi) insulating film manufacturing ink. In addition, although not directly related to electrical and optical characteristics, it is added to assist the formation of the coating film or improve the physical properties of the formed film, and can remain as a non-volatile component. Examples thereof include additives such as an agent, a crosslinking agent, and a filler (filler).

  The content of the nonvolatile component with respect to the ink composition is preferably 1 to 50% by weight, more preferably 5 to 20% by weight from the viewpoints of coatability and film-forming properties. If the content is too low, the coating film becomes too thin and the film thickness unevenness increases. Moreover, since fluidity | liquidity is low when there is too much content, leveling of a coating film does not occur easily and it becomes a film | membrane with a coating nonuniformity.

  The solvent is not particularly limited as long as it can dissolve or well disperse the nonvolatile components and volatilizes by heat treatment, and may be used alone or in combination. From the viewpoint of applicability to a printing plate and transferability to a target substrate, a combination solvent of a slow drying solvent and a quick drying solvent is preferable.

  Here, the slow-drying solvent is an evaporation rate by ASTM D3539 (for example, “Paint flow and coating film formation”, written by Toshihiko Nakamichi, published by Gihodo Publishing Co., Ltd., 1995, pages 107 to 109) of 0.8 or less. Solvent, preferably 0.5 or less. Specifically, (i) hydrocarbons such as dodecane and undecane, (ii) aromatic hydrocarbons such as xylene and mesitylene, (iii) hexanol, 3-methyl-3-methoxybutanol, methyl cellosolve, ethyl cellosolve, butyl cellosolve Alcohols such as methyl carbitol, ethyl carbitol, butyl carbitol, propylene glycol mono-t-butyl ether, (iv) dipropylene glycol dimethyl ether, diethylene glycol dibutyl ether, propylene glycol monomethyl ether acetate, dipropylene glycol monomethyl ether acetate, etc. Ether / ester, (v) ketones such as diisobutyl ketone and diacetone alcohol, N, N-dimethylformamide, N, N-dimethylacetome Amides, such as bromide, it is exemplified lactone such as (vi) .gamma.-butyrolactone.

  The quick-drying solvent is a solvent having an evaporation rate of more than 0.8 according to the above-mentioned ASTM D3539, preferably a solvent of 1.0 or more. Specifically, (i) hydrocarbons such as n-hexane, n-octane and isooctane, (ii) aromatic hydrocarbons such as toluene, (iii) alcohols such as methanol, ethanol and isopropyl alcohol, (iv) dibutyl ether And ethers such as tetrahydrofuran and cyclopentyl methyl ether, (v) esters such as ethyl acetate, isopropyl acetate and n-butyl acetate, and (vi) ketones such as acetone, methyl ethyl ketone and methyl isobutyl ketone.

  The ratio of the slow-drying solvent and the quick-drying solvent may be any ratio selected from slow-drying solvent / fast-drying solvent = 100/0 to 0/100. However, the slow-drying solvent / fast-drying solvent is selected from the balance of coatability and transferability. = 70/30 to 1/99 is preferable. If the ratio of the slow-drying solvent is small, the applied ink becomes too dry on the plate and tackiness is lost, and transfer to the target substrate becomes impossible. On the other hand, when the ratio of the quick-drying solvent is small, the fluidity of the ink applied to the plate is too large, and the pattern shape is crushed and becomes defective.

  The polar group-modified silicone is added to reduce the surface tension of the ink composition and increase the wettability to the ink releasable site, thereby significantly improving the ink application property. Here, the polar group-modified silicone is obtained by converting a part of polyalkylsiloxane having the following general formula (1) as a repeating unit into a functional group containing a polar group. Silicones that are not modified with a polar group have a problem that phase separation is likely to occur because of their small interaction with non-volatile components or solvents. The site to be converted into a functional group containing a polar group may be any of the main chain terminal, the main chain, and the side chain. Further, the modifying group equivalent is usually 500 to 10,000 g / mol, but is not limited thereto.

(N is an integer of 2 or more. R ¹ and R ² each independently represents a saturated hydrocarbon group having 1 to 10 carbon atoms. From the viewpoint of reducing surface tension, 50 moles of R ¹ and R ^{2 as} a whole. % Or more is preferably a methyl group.)
Here, examples of the polar group include an amino group, a hydroxy group, a mercapto group, a carboxyl group, an ether group (including a polyether group), an ester group, an amide group, an epoxy group, an acrylic group, and a methacryl group. These polar groups may be directly bonded to the siloxane main chain, or may be bonded via a carbon chain such as an alkylene group or an arylene group. Moreover, you may have 2 or more types of polar groups in 1 molecule. Of these, amino group-modified silicones, mercapto group-modified silicones, and polyether group-modified silicones are preferably used because they are effective in improving coatability in relatively small amounts.

  The content of the polar group-modified silicone with respect to the ink composition is preferably 0.01% by weight or more, and more preferably 0.1% by weight or more, from the viewpoint of forming a uniform coated surface without cissing. Moreover, 10 weight% or less is preferable and 5 weight% or less is more preferable from a viewpoint of maintaining favorable transcription | transfer property and not having a bad influence on the function of the formed coating film.

  Next, the printing plate will be described. As the printing plate, a lithographic plate on which a pattern composed mainly of an ink peelable portion serving as an image line portion and an ink-philic portion serving as a non-image portion is used. The ink releasable portion is a portion subjected to some resin-repellent processing, and is composed of, for example, silicone rubber, silicone resin, fluororubber, fluororesin, silane coupling agent, or the like. The ink-philic part is composed of a material having a larger surface free energy than the ink-peelable part, for example, an acrylic resin, a urethane resin, a phenol resin, a polyester resin, or an inorganic substance such as glass, metal, or metal oxide. . The ink peelable part and the ink-philic part may be on the same plane or have a step. When there is a level difference, the size is about several μm to several tens of μm, and such a plate is sometimes called a plano-concave plate or plano-convex plate. Specific examples include waterless planographic PS plates (for example, Toray Industries, Inc.) and printing plates disclosed in JP2009-234062A, JP2009-274365A, and JP2009-276598A. It is not limited to. Among these, a waterless lithographic PS plate is particularly preferably used from the viewpoint that a good pattern can be obtained with a large contrast between the ink peelable part and the ink-philic part with respect to the ink peelability.

  The method for applying the ink composition of the present invention to the plate is not particularly limited, but specifically, a slit die coater, a gravure coater, a reverse roll coater, a natural roll coater, a knife coater, an air knife coater, a blade coater, and a roll blade. Examples include a coater, a cap coater, a wire bar coater, a dip coater, a curtain coater, a spin coater, an applicator with a micrometer, a baker type applicator, a film applicator, an anix roller, an ink jet, and a nozzle coater.

  Next, the target substrate will be described. In order to be able to transfer only the ink on the ink releasable part of the printing plate, the size of the ink releasability is as follows. The target substrate is designed to be relevant. Specifically, a highly peelable silicone resin, silicone rubber, fluororesin, or a sheet or film molded from fluororubber, a general film surface coated with a silicone resin or fluororesin, or a paper surface Examples thereof include release paper coated with silicone resin or fluororesin, but are not limited thereto.

  When the target substrate is an intermediate transfer body for offset printing, a blanket in which a cushioning property is enhanced by bonding a flexible sheet such as cloth property or foaming resin to the release film or rubber sheet as the target substrate is exemplified. However, since it can be applied to various printed materials, a blanket is preferably used. In particular, a silicone rubber blanket is preferable from the viewpoint of appropriate ink releasability.

  Next, the substrate will be described. Although the to-be-printed material used for the printing method of this invention is not specifically limited, When the heat processing of printed material is needed for an electronic device use, a heat resistant material is preferable. Examples of such materials include polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyphenylene sulfide (PPS), polyethersulfone (PES), polyimide (PI), polyaramid, polycarbonate (PC), and cycloolefin polymer. Examples thereof include a heat-resistant plastic film or sheet, a glass plate such as soda lime or quartz, and a silicon wafer. Alternatively, after some pattern is formed on the substrate by another method, printing may be performed using the printing plate of the present invention. For example, in manufacturing a thin film transistor, a pattern of a gate electrode and a gate insulating layer is formed, and a source / drain electrode is printed thereon.

The present invention will be described below with reference to examples.
<Preparation of polysiloxane solution (a)>
510.8 g of methyltrimethoxysilane, 1239.4 g of phenyltrimethoxysilane, 154.0 g of 2- (3,4-epoxycyclohexyl) ethyltrimethoxysilane, 220.3 g of silicate 51 (manufactured by Tama Chemical Co., Ltd.) and propylene glycol 1921.1 g of monomethyl ether acetate was put in a three-necked flask, and a phosphoric acid solution in which 6.4 g of phosphoric acid was dissolved in 669.4 g of water was added at a bath temperature of 40 ° C. over 30 minutes. The obtained solution was heated and stirred at a bath temperature of 70 ° C. for 1.5 hours, and further heated and stirred at a bath temperature of 115 ° C. for 1.5 hours, while distilling off methanol and water, which were by-products by hydrolysis, Reacted. After completion of the reaction, the reaction mixture was ice-cooled to obtain a polysiloxane solution (a) having a total solid content concentration of 45%.
<Preparation of titanium black dispersion (b)>
After synthesizing a methyl methacrylate / methacrylic acid / styrene copolymer (weight composition ratio 30/40/30) by the method described in Example 1 of Japanese Patent No. 3120476, 40 parts by weight of glycidyl methacrylate is added, and purified water is added. Then, an acrylic polymer powder having properties of an average molecular weight (Mw) of 40,000 and an acid value of 110 (mgKOH / g) was obtained.

  50.0 g of a 50% by weight dipropylene glycol monomethyl ether acetate (DPMA) solution of the obtained acrylic polymer powder, 115.0 g of titanium black (manufactured by Mitsubishi Materials Electronic Chemical Co., Ltd.), and 325.0 g of DPMA are charged into a tank, The mixture was stirred for 1 hour with a homomixer (manufactured by Special Machine) to obtain a preliminary dispersion. Thereafter, the preliminary dispersion was supplied to an ultra apex mill (manufactured by Kotobuki Kogyo Co., Ltd.) equipped with a centrifugal separator filled with 70% 0.05 mmφ zirconia beads (manufactured by Nikkato Co., Ltd., YTZ balls) and rotated at a rotational speed of 8 m / s for 2 hours. Dispersion was performed. In this dispersion, 37.4 g of a propylene glycol monomethyl ether acetate (PGMEA) 50 wt% solution of dipentaerythritol hexaacrylate (DHPA, manufactured by Nippon Kayaku Co., Ltd.) as a polyfunctional monomer and “Irgacure” as a photopolymerization initiator 369 17.7 g (manufactured by Nagase Sangyo Co., Ltd.), PGMEA 10 wt% solution of silicone surfactant 3.6 g of PGMEA dissolved in 330.0 g, total solid content concentration 20 wt%, pigment / resin A titanium black dispersion (b) having a (weight ratio) = 72/28 was obtained.

(Example 1)
<Preparation of ink composition>
Mixing 31.6 g of PGMEA and 44.9 g of isopropyl acetate 0.3 g of PGMEA 50 wt% solution of polysiloxane solution (a) 21.6 g and aluminum-based crosslinking agent “Plenact” AL-M (manufactured by Ajinomoto Fine Techno Co., Ltd.) Added to the solvent and stirred. To this, 0.2 g of polar group-modified silicone A (amino group-modified silicone, product name: X-22-161B, manufactured by Shin-Etsu Chemical Co., Ltd.) was added and stirred to obtain an ink composition. The non-volatile component concentration (polysiloxane + crosslinking agent) of the ink composition thus obtained was 10% by weight of the total ink composition, and the solvent ratio was slow drying solvent / fast drying solvent = 50/50. there were.

<Preparation of printing plate>
A negative type waterless lithographic PS plate (TANE, manufactured by Toray Industries, Inc.) was cut into 10 cm □ and placed on an exposure stage of an ultrahigh pressure mercury lamp exposure machine (PEM-6M, manufactured by Union Optics). Next, a photomask on which a line pattern of line / space = 25 μm / 25 μm was formed in a range of 5 cm □ was placed and exposed. This was developed using an automatic developing machine TWL-860KII (manufactured by Toray Industries, Inc.) to obtain a printing plate.

<Application of ink composition to plate>
After fixing the printing plate on a flat table, the ink composition was applied to the entire surface of the plate using a wire bar coater (counter 3) and left to dry for 30 seconds. Thereafter, the coating film was observed with an optical microscope and evaluated according to the following criteria. The results are shown in Table 1.

Less than 10 repels with a diameter of 100 μm or more A
10 or more and less than 50 repellings with a diameter of 100 μm or more B
50 or more repellents with a diameter of 100 μm or more C
Homogeneous coating is not formed D
<Transfer to target substrate>
A silicone blanket “Syl Blanc” (manufactured by Kinyo Co., Ltd.) was used as the target substrate. The ink composition was applied to the entire surface of the printing plate according to the method described above, allowed to dry for 30 seconds, then pressed with a silicone blanket, pressed with a roller, and then the blanket was peeled off. Next, the ink composition transferred to the blanket was visually observed and evaluated according to the following criteria. The results are shown in Table 1.

Fully transcribed A
Less than 10% of the area of the untransferred part B
The area of the untransferred part is 10% or more and less than 50% of the whole C
The area of the untransferred part is 50% or more. D
<Retransfer to substrate>
A 12.5 cm square glass substrate was used for the substrate. The ink composition was applied according to the above method and transferred to a silicone blanket. Next, the portion to which the pattern of the silicone blanket was transferred was pressed against a glass substrate, pressed with a roller, and then the blanket was peeled off. Subsequently, the printed material retransferred to the glass substrate was visually observed and evaluated according to the following criteria. The results are shown in Table 1.

Fully transcribed A
Less than 10% of the area of the untransferred part B
The area of the untransferred part is 10% or more and less than 50% of the whole C
The area of the untransferred part is 50% or more. D
<Observation of printed matter>
After the printed material was formed on the glass substrate according to the above method, this was heated in a hot air oven at 230 ° C. for 60 minutes to cure the film. Then, the pattern of the printed matter was observed with an optical microscope and evaluated according to the following criteria. The results are shown in Table 1.

The photomask pattern is reproduced well A
Pinhole-shaped repellency is seen with distortion and jaggedness in the pattern. B
Some patterns are crushed due to improper transfer or repelling C
There is no pattern. D
(Examples 2 to 5)
An ink composition was prepared and printed in the same manner as in Example 1 except that the polar group-modified silicone was changed to that shown in Table 1. The results are shown in Table 1. The types of polar group-modified silicone used are shown below.
A: Amino group modification Product name: X-22-161B (manufactured by Shin-Etsu Chemical Co., Ltd.)
B: Amino group modification Product name: FZ3705 (manufactured by Dow Corning Toray)
C: Mercapto group-modified product name: X-22-167B (manufactured by Shin-Etsu Chemical Co., Ltd.)
D: Polyether group modified product name: BYK-307 (manufactured by Big Chemie Japan Co., Ltd.)
E: Polyether group modification Product name: BYK-333 (manufactured by Big Chemie Japan Co., Ltd.)
(Examples 6 to 9)
An ink composition was prepared and printed in the same manner as in Example 1 except that the addition amount of the polar group-modified silicone was changed as shown in Table 1. The results are shown in Table 1.

(Examples 10 to 13)
An ink composition was prepared and printed in the same manner as in Example 1 except that the concentration of the nonvolatile component was changed as shown in Table 1. The results are shown in Table 1.

(Examples 14 to 15)
An ink composition was prepared and printed in the same manner as in Example 8 except that the ratio of the slow drying solvent to the quick drying solvent was changed as shown in Table 2. The results are shown in Table 2.

(Example 16)
An ink composition was prepared and printed in the same manner as in Example 1 except that the ratio of the slow drying solvent to the fast drying solvent was changed as shown in Table 2. The results are shown in Table 2.

(Example 17)
50 g of the titanium black dispersion liquid (b) was added to a mixed solvent of 9.8 g of PGMEA and 49.8 g of isopropyl acetate and stirred. To this, 0.5 g of polar group-modified silicone A (amino group-modified silicone, product name: X-22-161B) was added and further stirred to obtain an ink composition. The non-volatile component concentration (titanium black + resin) of the ink composition thus obtained was 10% by weight of the total ink composition, and the solvent ratio was slow drying solvent / fast drying solvent = 50/50. It was.

  Subsequently, the ink composition was printed according to the method described in Example 1. The results are shown in Table 2.

(Comparative Example 1)
An ink composition was prepared and printed in the same manner as in Example 1 except that no polar group-modified silicone was added. As a result, about 100 to several hundred repellents having a diameter of 100 μm or more were observed in the application to the plate, and a good coating film was not formed. The transfer from the plate to the silicone blanket and the transfer from the silicone blanket to the glass substrate were complete, and the state of the printed material was good except that there was repelling.

(Comparative Example 2)
An ink composition was prepared and printed in the same manner as in Example 1 except that the polar group-modified silicone was changed to a fluorosurfactant F (“Megafac” F-470, manufactured by DIC Corporation). As a result, about 40 to 70 repels having a diameter of 100 μm or more were observed in the application to the plate, and a good coating film was not formed. The transfer from the plate to the silicone blanket and the transfer from the silicone blanket to the glass substrate were complete, and the state of the printed material was good except that there was repelling.

(Comparative Example 3)
An ink composition was prepared in the same manner as in Example 1 except that the polar group-modified silicone was changed to silicone oil G having no polar group (polydimethylsiloxane, KF-96-100cs, manufactured by Shin-Etsu Chemical Co., Ltd.). . As a result, the added silicone oil caused phase separation, and a homogeneous ink composition could not be obtained.

(Comparative Example 4)
An ink composition was prepared and printed in the same manner as in Example 14 except that no polar group-modified silicone was added. As a result, the ink composition was greatly bounced at the ink peelable portion of the printing plate and aggregated at the ink-philic portion, and no film was formed.

1 Support 2 Parent ink layer (ink-philic part)
3 Ink peeling layer (ink peeling part)
4 Ink 4 'Ink on the image area 4 "Ink on the non-image area 5 Blade coater 6 Transfer cylinder 7 Silicone blanket 8 Printed material 9 Print pattern 10 Release film 11 with resin-repellent coating 11 Imprint cylinder 12 Print pattern

Claims (4)

  A printed material having at least a step of applying ink to the entire surface of a printing plate having an ink-removable part and an ink-philic part on a support and a step of selectively transferring the ink on the ink-removable part to a target substrate. A printing ink composition for use in a production method, wherein the printing ink composition contains at least a nonvolatile component, a solvent, and a polar group-modified silicone.   2. The printing ink composition according to claim 1, wherein the polar group-modified silicone is any one of an amino group-modified silicone, a mercapto group-modified silicone, and a polyether group-modified silicone.   A step of applying an ink containing at least a non-volatile component, a solvent, and a polar group-modified silicone to the entire surface of a printing plate having an ink releasable part and an ink-philic part on a support, and ink on the ink releasable part A method for producing a printed matter comprising at least a step of selectively transferring the ink to a target substrate.   The method for producing a printed material according to claim 3, further comprising a step of re-transferring the ink transferred onto the intermediate transfer body to the printing material, wherein the target substrate is an intermediate transfer body for offset printing.

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