Coating composition for continuous inkjet printing, printed material, and method for manufacturing the printed material.

Abstract

This invention provides a coating composition for continuous inkjet printing that can be performed using a continuous inkjet method and exhibits excellent insect-repellent properties. [Solution] A coating composition for continuous inkjet printing comprising at least an insect repellent component, a binder resin, a conductivity imparting agent, and a solvent, wherein the content of the insect repellent component is 0.03% by mass or more and 10% by mass or less of the total amount of the continuous inkjet printing coating composition.

Description

[Technical Field]

[0001] The present invention relates to a coating composition for continuous inkjet printing, a printed material, and a method for producing a printed material. [Background technology]

[0002] Traditionally, in the field of packaging paper and packaging film, a method has been used to form a printed layer with insect-repellent properties by printing a composition containing insect-repellent components to prevent insect intrusion.

[0003] For example, Patent Document 1 discloses insect-repellent paper for food packaging, comprising a base material, a printed layer formed on the surface of the base material, and an OP layer formed on the surface of the base material superimposed on the printed layer, wherein the OP layer contains 15% to 20% by weight of a pyrone-based insecticide. [Prior art documents] [Patent Documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 11-59745 [Overview of the Initiative] [Problems that the invention aims to solve]

[0005] Patent Document 1 describes a method for printing an insect repellent composition using offset printing with solid color printing.

[0006] In recent years, continuous inkjet printing (charge-controlled printing) has been used in the field of packaging paper and packaging film. Continuous inkjet printing allows for the use of fast-drying compositions and enables high-speed printing, making it more cost-effective than offset printing for small-batch, high-mix printing. Furthermore, solid color printing is not necessary to achieve insect-repellent effects; printing only where required or patterns such as stripes are acceptable, making inkjet printing suitable.

[0007] Therefore, the present invention aims to provide a coating composition for continuous inkjet printing that can be performed by a continuous inkjet method and has excellent insect-repellent properties. [Means for solving the problem]

[0008] The present inventors have found that the above-mentioned problems can be solved by setting the content of the insect repellent component within a predetermined range in a coating composition for continuous inkjet printing that contains at least an insect repellent component, a binder resin, a conductivity imparting agent, and a solvent.

[0009] In other words, the present invention relates to a continuous inkjet coating composition comprising at least an insect repellent component, a binder resin, a conductivity imparting agent, and a solvent, wherein the content of the insect repellent component is 0.03% by mass or more and 10% by mass or less of the total continuous inkjet coating composition.

[0010] In the coating composition for continuous inkjet printing of the present invention, it is preferable that the content of the binder resin is 3% by mass or more and 8% by mass or less of the total continuous inkjet coating composition. Furthermore, it is preferable that the content of the above-mentioned conductivity imparting agent is 0.15% by mass or more and 0.8% by mass or less of the total continuous inkjet coating composition. It is preferable that the above insect repellent component includes at least one selected from the group consisting of pyrethroid compounds, essential oils, essential oil components, and dibasic acid esters. Furthermore, it is preferable that the binder resin contains butyral resin. Furthermore, it is preferable that the conductivity imparting agent includes at least one selected from sodium thiocyanate, potassium thiocyanate, and ammonium thiocyanate. The present invention also relates to a method for manufacturing a printed article, comprising the step of applying the continuous inkjet coating composition described in claim 1 or 2 onto a substrate using a continuous inkjet printer. Furthermore, the present invention has a printing layer on a substrate of a continuous inkjet coating composition containing at least an insect repellent component, a binder resin, and a conductivity imparting agent, wherein the amount of insect repellent component adhering to the substrate is 0.5 mg / m². 2 More than 300mg / m 2 The following is also a printed document. [Effects of the Invention]

[0011] The present invention provides a coating composition for continuous inkjet printing that can be performed using a continuous inkjet method and has excellent insect-repellent properties. [Brief explanation of the drawing]

[0012] [Figure 1] Figure 1 is a diagram illustrating a test method for evaluating the insecticidal effect of adult German cockroaches. [Figure 2] Figure 2 is a diagram illustrating a test method for evaluating the insecticidal effect of Indian meal moth larvae. [Modes for carrying out the invention]

[0013] <Coating composition for continuous inkjet printers> The coating composition for continuous inkjet of the present invention is a coating composition for continuous inkjet containing at least an insect-proofing component, a binder resin, a conductivity-imparting agent, and a solvent, wherein the content of the insect-proofing component is 0.03% by mass or more and 10% by mass or less based on the total amount of the coating composition for continuous inkjet.

[0014] (Insect-proofing component) The coating composition for continuous inkjet of the present invention contains an insect-proofing component. Examples of the insect-proofing component include pyrethroid compounds, other insecticidal components, essential oils, essential oil components, dibasic acid esters, and other insect-repellent components. These may be used alone or in combination of two or more. In this specification, "insect-proofing" is used as a broad concept including "insecticidal" and "repellent (insect-repellent)". Therefore, the "insect-proofing component" includes both insecticidal components and repellent components (insect-repellent components).

[0015] Examples of the pyrethroid compounds include pyrethrum extract, allethrin, imiprothrin, etofenprox, empenthrin, cypermethrin, cyphenothrin, cyfluthrin, silafluofen, deltamethrin, transfluthrin, bifenthrin, pyrethrin, phenothrin, fenvalerate, fenpropathrin, phthalothrin, prallethrin, profenofos, permethrin, metofluthrin, monofluoroethrin, resmethrin, and the like.

[0016] Examples of the other insecticidal components include organophosphorus compounds such as chlorpyrifos, dichlorvos, diazinon, pyridaphenthion, fenitrothion, prothiofos, hokim, and malathion; carbamate compounds such as carbaryl, thiodicarb, propoxur, and mesomyl; oxadiazole compounds such as methoxadiazone; phenylpyrazole compounds such as fipronil; sulfonamide compounds such as amidoflumet; neonicotinoid compounds such as imidacloprid and dinotefuran; pyrrole compounds such as chlorfenapyr; and metadiamide compounds such as broflanilide.

[0017] The essential oils mentioned above include peppermint oil, spearmint oil, cedar essential oil, cypress essential oil, lavender oil, cinnamon oil, camphor oil, lemongrass oil, clover oil, thyme oil, geranium oil, bergamont oil, copaiba oil, laurel oil, turpentine oil, red peach essential oil, pennyroyal oil, eucalyptus oil, neem oil, and other essential oils or extracts derived from plants.

[0018] The essential oil components mentioned above include β-caryophyllene, L-menthol, thymol, hinokitiol, eucalyptol, α-pinene, geraniol, citronellal, camphor, linalool, p-menthane-3,8-diol, terpenol, eugenol, isobutyl phenylacetate, and other components found in the above essential oils.

[0019] Examples of the above-mentioned dibasic acid esters include dipropyl adipate, dibutyl adipate, dioctyl adipate (including di-2-ethylhexyl adipate), dioctyl sebacate (including di-2-ethylhexyl sebacate), dibutyl sebacate, dioctyl phthalate (including di-2-ethylhexyl phthalate), dibutyl phthalate, and dimethyl phthalate.

[0020] Other insect repellent ingredients mentioned above include compounds such as diethyltoluamide (DEET), picaridin (picaridin), and ethyl-butylacetylaminopropionate (IR3535) (registered trademark); fatty acids such as pelargonic acid and linolenic acid; and 2-ethyl-1,3-hexadiol, butyl-3,4-dihydro-2,2-dimethyl-4-oxo-2H-plan-6-carboxylate (Indalone), n-hexyltriethylene glycol monoether, methyl-6-n-pentyl-cyclohexene-1-carboxylate, naphthalene, 2-ethyl-2-butyl-1,3-propanediol, 2,3,4,5-bis(Δ2-butylene)tetrahydrofurfural, and di-n-propyl isocinecomelonate.

[0021] From a safety standpoint, the above insect repellent component preferably contains at least one selected from the group consisting of pyrethroid compounds, essential oils, essential oil components, and dibasic acid esters. The above pyrethroid compound is more preferably cyphenothrin, phenothrin, or permethrin, and even more preferably cyphenothrin. The above essential oils more preferably include cedar essential oil, cypress essential oil, or copaiba oil, and even more preferably include copaiba oil. The above essential oil components more preferably include α-pinene, hinokitiol, or β-caryophyllene, and even more preferably include β-caryophyllene. The above dibasic acid esters more preferably include any of dipropyl adipate, dibutyl adipate, dioctyl adipate, or dioctyl sebacate; even more preferably include any of di-i-propyl adipate, di-n-butyl adipate, di-2-ethylhexyl adipate, or di-2-ethylhexyl sebacate; and particularly preferably include di-2-ethylhexyl sebacate.

[0022] From the viewpoint of exhibiting an insect-repellent effect, the content of the above insect-repellent component is 0.03% by mass or more relative to the entire continuous inkjet coating composition. The amount of the above insect repellent component is more preferably 0.1% by mass or more, and even more preferably 0.3% by mass or more, relative to the entire continuous inkjet coating composition.

[0023] The amount of the above insect-repellent component is 10% by mass or less of the total continuous inkjet coating composition, from the viewpoint of solubility in solvents and material costs.

[0024] In this specification, the term "insect control" refers to a broad range of pests, including, for example, cockroaches such as the German cockroach and the American cockroach; stored grain pests such as the Indian meal moth, the adzuki bean weevil, and the confused flour beetle; flies such as the house fly; gnats such as the fruit fly, mosquitoes such as the common house mosquito and the Asian tiger mosquito; ants such as the brown ant and the small brown ant; and other sanitary pests, nuisance pests, and clothing pests that pose problems in food packaging and daily necessities.

[0025] (Binder resin) The coating composition for continuous inkjet printing according to the present invention comprises a binder resin.

[0026] Examples of the binder resins mentioned above include polyester resins, acrylic resins, vinyl chloride resins, vinyl chloride-vinyl acetate resins, ethylene-vinyl acetate resins, styrene-acrylic resins, styrene-maleic acid resins, rosin resins, rosin ester resins, petroleum resins, coumarone-indene resins, terpene phenolic resins, phenolic resins, urethane resins, melamine resins, urea resins, epoxy resins, cellulose resins, xylene resins, alkyd resins, aliphatic hydrocarbon resins, butyral resins, maleic acid resins, fumaric acid resins, and the like. These may be used individually or in combination of two or more types.

[0027] The binder resin described above preferably contains butyral resin from the viewpoint of abrasion resistance. Butyral resin is commercially available as polyvinyl butyral resin, and examples include Mowital® B series (manufactured by Kuraray Co., Ltd.), S-LEC® SV series, and S-LEC® B series (both manufactured by Sekisui Chemical Co., Ltd.). In particular, those that can maintain the viscosity of the coating composition for continuous inkjet printing, which is suitable for use in continuous inkjet printing systems, are preferred.

[0028] From the viewpoint of appropriately imparting viscosity, providing abrasion resistance, and providing good discharge properties, the content of the above binder resin is preferably 3% by mass or more and 8% by mass or less of the total continuous inkjet coating composition. The content of the above-mentioned binder resin is more preferably 4% by mass or more, and even more preferably 4.5% by mass or more. Furthermore, it is more preferably 7.5% by mass or less, and even more preferably 7% by mass or less.

[0029] (Conductivity imparting agent) The coating composition for continuous inkjet printing according to the present invention contains a conductivity imparting agent.

[0030] Conventional conductive agents can be used as the above-mentioned conductive agents. Specifically, examples include inorganic salts, amine hydrochlorides, quaternary ammonium salts in which the anion is an organic anion, azo iron complexes, triallyl sulfonium salts and their derivatives, diallyloidonium salts and their derivatives, and the like. These may be used individually or in combination of two or more types.

[0031] From the viewpoint of solubility in solvents, the above conductivity imparting agent preferably contains at least one selected from sodium thiocyanate, potassium thiocyanate, and ammonium thiocyanate.

[0032] From the viewpoint of appropriately imparting conductivity and providing good ejection properties, the content of the above-mentioned conductivity imparting agent is preferably 0.15% by mass or more and 0.8% by mass or less of the total continuous inkjet coating composition.

[0033] The content of the above-mentioned conductivity imparting agent is more preferably 0.2% by mass or more, and more preferably 0.7% by mass or less, relative to the total amount of the above-mentioned coating composition for continuous inkjet printing.

[0034] (solvent) The coating composition for continuous inkjet printing of the present invention contains a solvent.

[0035] Examples of the above solvents include monohydric alcohols such as methanol, ethanol, n-propanol, isopropanol, n-butanol, amyl alcohol, benzyl alcohol, cyclohexanol, and diacetone alcohol; dihydric alcohols such as ethylene glycol, diethylene glycol, trimethylene glycol, triethylene glycol, tetraethylene glycol, polyethylene glycol, and propylene glycol; ethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monobutyl ether, propylene glycol monomethyl ether, and propylene glycol monoethyl ether. Examples include alkylene glycol monoalkyl ethers such as dipropylene glycol monoethyl ether, alkylene glycol monoacetates such as ethylene glycol monoacetate and propylene glycol monoacetate, alkylene glycol monoalkyl ether monoacetates such as ethylene glycol monomethyl ether monoacetate and propylene glycol monomethyl ether monoacetate, alkyl lactate esters such as methyl lactate and butyl lactate, lactones such as γ-butyrolactone, ketones such as dimethyl ketone, methyl ethyl ketone and methyl isobutyl ketone, amides, nitrogen-containing compounds such as morpholine and pyridine. These may be used individually or in combination of two or more types.

[0036] From the viewpoint of providing conductivity and quick-drying properties, organic solvents such as methyl ethyl ketone, methanol, and ethanol are preferred as the above-mentioned solvents.

[0037] The content of the above solvent is not particularly limited, but for example, it is preferably 60% by mass or more and 90% by mass or less of the total amount of the above continuous inkjet coating composition.

[0038] (others) The coating composition for continuous inkjet printing of the present invention can use various additives such as viscosity modifiers, rust inhibitors, defoamers, plasticizers, surface modifiers, UV inhibitors, light stabilizers, antioxidants, silicone-based surfactants, and fluorine-containing surfactants.

[0039] The content of the above-mentioned additive is, for example, about 0 to 5% by mass relative to the entire continuous inkjet coating composition.

[0040] (Method for producing coating compositions for continuous inkjet printing) As a method for producing the coating composition for continuous inkjet printing of the present invention, known methods can be used as appropriate. For example, one method involves placing the above-mentioned materials into a container, stirring them using a known stirring device such as a disperser to mix and dissolve them uniformly, and then filtering them with a membrane filter.

[0041] (Characteristics of coating compositions for continuous inkjet printing) The coating composition for continuous inkjet printing of the present invention can be applied using a continuous inkjet printer. Therefore, when printing small quantities of a wide variety of products, it is more cost-effective compared to conventional printing methods.

[0042] The coating composition for continuous inkjet printing of the present invention preferably has a viscosity of 3.0 to 7.0 cps, as measured using an E-type viscometer (product name: RE100L viscometer, manufactured by Toki Sangyo Co., Ltd.) at a temperature of 25°C and a rotor rotation speed of 100 rpm. Good discharge performance is achieved within this viscosity range. The coating composition for continuous inkjet technology of the present invention more preferably has a viscosity of 4.0 to 6.0 cps.

[0043] <Printed material> The printed matter of the present invention has a printed layer of a coating composition for continuous inkjet containing at least an insect repellent component, a binder resin, and a conductivity-imparting agent on a substrate, and the adhesion amount of the insect repellent component on the substrate is 0.5 mg / m 2 or more and 300 mg / m 2 or less.

[0044] As the above-mentioned substrate, in addition to papers such as uncoated paper, coated paper, and cardboard, synthetic paper, various plastics used for flexible packaging, and their films can be used.

[0045] From the viewpoint of more preferably expressing the insect repellent effect, the adhesion amount of the insect repellent component on the above-mentioned substrate is 0.5 mg / m 2 or more. The adhesion amount of the insect repellent component on the above-mentioned substrate is preferably 0.9 mg / m 2 or more, more preferably 3 mg / m 2 or more, and even more preferably 10 mg / m 2 or more. From the viewpoints of the adhesion of the discharged matter to the substrate and the material cost, the adhesion amount of the insect repellent component on the above-mentioned substrate is 300 mg / m 2 or less. The adhesion amount of the insect repellent component on the above-mentioned substrate is more preferably 200 mg / m 2 or less, and even more preferably 100 mg / m 2 or less.

[0046] Incidentally, the adhesion amount of the insect repellent component on the above-mentioned substrate can be measured by, for example, the gas chromatography method described below. Immerse the substrate printed with the insect repellent component in a solvent such as acetone to extract the insect repellent component. Separately, prepare a solution with a known concentration of the insect repellent component alone. Connect a non-polar column filled with dimethylpolysiloxane or the like to a gas chromatography device equipped with a flame ionization detector (FID) or the like to serve as an analyzer. The substrate extract and the insect repellent solution are each passed through an analytical instrument, and the amount of adhesion is determined by comparing the retention time and peak area of ​​the insect repellent component. An internal standard substance may also be added to each analytical sample in a known amount and used for quantitative calculation.

[0047] The method for manufacturing the printed material of the present invention is not particularly limited as long as the amount of insect-repellent component attached to the substrate can be within a specific range. One example is the method of manufacturing using the printing method described later.

[0048] <Manufacturing methods for printed materials> The present invention provides a method for manufacturing printed materials, comprising the step of applying the above-mentioned continuous inkjet coating composition onto a substrate using a continuous inkjet printer.

[0049] The above-mentioned continuous inkjet printer is not limited to this type, and any known device can be appropriately selected and used. [Examples]

[0050] The present invention will be described in more detail below with reference to examples, but the present invention is not limited to these examples. Unless otherwise specified, "%" means "mass%" and "parts" means "parts by mass".

[0051] The materials used in preparing the continuous inkjet coating compositions of the examples and comparative examples are as follows: (Insect repellent ingredients) Cyphenothrin (pyrethroid compound) Copaiba oil (essential oil) Di-2-ethylhexyl sebacate (dibasic acid esters) (Binder resin) Butyral resin (1) (Product name: Mowital B16H, manufactured by Kuraray Co., Ltd.) Butyral resin (2) (Product name: Mowital B14S, manufactured by Kuraray Co., Ltd.) Butyral resin (3) (Product name: Mowital B20H, manufactured by Kuraray Co., Ltd.) (Conductivity imparting agent) Sodium thiocyanate (solvent) ethanol

[0052] (Examples 1-19, Comparative Example 1) Various materials were placed in a container in the proportions (mass%) listed in Tables 1 and 2, stirred using a disperser to uniformly mix and dissolve them, and then filtered through a membrane filter to prepare a coating composition for continuous inkjet printing.

[0053] <Preparation of evaluation pieces> For each example and comparative example, evaluation pieces were prepared by printing 1 mm spaced stripes onto a biaxially oriented polyester film (Toyobo Co., Ltd., ester film, product name: E5102) using a continuous inkjet printer, so that the amount of insect repellent component attached was as shown in Tables 1 and 2. The amount of insect-repellent component adhering to the substrate can be measured and confirmed by the method described herein.

[0054] <Insect repellent effect test using adult German cockroaches> Figure 1 is a diagram illustrating a test method for evaluating the insecticidal effect (repellent effect) of adult German cockroaches. As shown in Figure 1, two pieces of evaluation piece 1 (50mm x 50mm) were placed diagonally across a bat 4 (200mm x 250mm) for insect control testing, and two pieces of untreated piece 2 (unprinted biaxially oriented polyester film (manufactured by Toyobo Co., Ltd., ester film, product name: E5102), 50mm x 50mm) were placed on the remaining diagonal. A transparent container 3 with an entrance / exit, which serves as a place for insects to settle, was placed over each piece (with the entrance / exit facing inward). Sixty adult German cockroaches were released into the center of bat 4, and the number of cockroaches that settled in each piece was observed after one day. The settlement prevention rate, calculated using the formula below, was recorded and evaluated according to the following criteria. The results are shown in Tables 1 and 2. Establishment prevention rate [%] = (Number of established insects in untreated area - Number of established insects in pest-treated area) ÷ (Number of established insects in untreated area + Number of established insects in pest-treated area) × 100 (Evaluation Criteria) ◎: Success rate of preventing establishment is 70% or higher ○: Success rate of preventing establishment is 50% or more but less than 70% △: Success rate between 20% and 50% ×: Success rate less than 20%

[0055] <Insect control efficacy test using Indian meal moth larvae> Figure 2 is a diagram illustrating a test method for evaluating the insecticidal effect (repellent effect) of Indian meal moth larvae. As shown in Figure 2, two evaluation pieces 11 (50mm x 50mm) were placed diagonally, and two untreated pieces 12 (unprinted biaxially oriented polyester film (Toyobo Co., Ltd., ester film, product name: E5102), 50mm x 50mm) were placed without gaps on the remaining diagonal. Ten Indian meal moth larvae were placed in the center of the arranged pieces, and a Φ60mm petri dish 13 was placed upside down over them. The average number of Indian meal larvae settled in the untreated area was observed after 15 minutes. The results are shown in Tables 1 and 2. (Evaluation Criteria) ◎: The number of animals that settled in the untreated area was more than 7.0 on average. ○: The number of animals that settled in the untreated area was more than 6.0 on average, but 7.0 or less. △: The number of animals that settled in the untreated area was more than 5.0 on average, but less than 6.0. ×: The average number of animals that settled in the untreated area was less than 5.0.

[0056] <Abrasion resistance> The degree of coating film removal was visually inspected when the coating surface of the evaluation piece prepared for the insect repellent effect described above was rubbed five times with a cotton cloth, and evaluated according to the following criteria. The results are shown in Tables 1 and 2. (Evaluation Criteria) ○: Less than 10% of the paint film is removed. ×: Paint film removal is between 10% and less than 80%

[0057] <Dischargeability> Using a continuous inkjet printer, a chromium complex dye (Varifast Black 3810, manufactured by Orient Chemical Co., Ltd.) was added to 1% by mass of the prepared continuous inkjet coating composition. This mixture was ejected to print characters onto a biaxially oriented polyester film (Ester Film, manufactured by Toyobo Co., Ltd., product name: E5102), and the results were evaluated according to the following criteria. The results are shown in Tables 1 and 2. The chromium complex dye mentioned above was added to the continuous inkjet coating composition to color the printed characters and make them easier to read. (Evaluation Criteria) ◎: The text was printed without any distortion. ○: Although there was some distortion, the characters were legible. △: The letters were distorted, but output was possible.

[0058] <Viscosity> The prepared coating compositions for continuous inkjet printing were measured using an E-type viscometer (product name: RE100L viscometer, manufactured by Toki Sangyo Co., Ltd.) under conditions of 25°C and a rotor rotation speed of 100 rpm. The results are shown in Tables 1 and 2.

[0059] [Table 1]

[0060] [Table 2]

[0061] As shown in Tables 1 and 2, the continuous inkjet coating compositions of the examples were confirmed to be usable for printing using the continuous inkjet method and to have excellent insect-repellent effects. Furthermore, it was confirmed that the continuous inkjet coating compositions of Examples 1 to 19 exhibited excellent ejection properties by controlling the content of the binder resin and conductivity imparter to a predetermined range.

[0062] This specification discloses the following:

[0063] (1) The present disclosure is a coating composition for continuous inkjet printing comprising at least an insect repellent component, a binder resin, a conductivity imparting agent, and a solvent, wherein the content of the insect repellent component is 0.03% by mass or more and 10% by mass or less of the total amount of the continuous inkjet printing coating composition. Disclosure (2) is the continuous inkjet coating composition according to Disclosure (1), wherein the content of the binder resin is 3% by mass or more and 8% by mass or less with respect to the entire continuous inkjet coating composition. Disclosure (3) is a continuous inkjet coating composition according to Disclosure (1) or (2), wherein the content of the conductivity imparting agent is 0.15% by mass or more and 0.8% by mass or less with respect to the entire continuous inkjet coating composition. Disclosure (4) is a continuous inkjet coating composition according to any one of Disclosures (1) to (3), wherein the insect repellent component comprises at least one selected from the group consisting of pyrethroid compounds, essential oils, essential oil components, and dibasic acid esters. Disclosure (5) is a continuous inkjet coating composition according to any one of Disclosures (1) to (4), wherein the binder resin comprises a butyral resin. Disclosure (6) is a continuous inkjet coating composition according to any one of Disclosures (1) to (5), wherein the conductivity imparting agent comprises at least one selected from sodium thiocyanate, potassium thiocyanate, and ammonium thiocyanate. Disclosure (7) is a method for manufacturing a printed article, comprising the step of applying a continuous inkjet coating composition described in any of Disclosures (1) to (6) onto a substrate using a continuous inkjet printer. The present disclosure (8) provides a printing layer on a substrate of a continuous inkjet coating composition comprising at least an insect repellent component, a binder resin, and a conductivity imparting agent, wherein the amount of insect repellent component adhering to the substrate is 0.5 mg / m². 2 More than 300mg / m 2 The following is the printed material. [Industrial applicability]

[0064] The present invention provides a coating composition for continuous inkjet printing that can be performed using a continuous inkjet method and has excellent insect-repellent properties. [Explanation of symbols]

[0065] 1.11 evaluation pieces 2, 12 Unprocessed Pieces 3. Transparent container with an entrance / exit 4 Bats 13 Petri dishes

Claims

1. A coating composition for continuous inkjet printing comprising at least an insect repellent component, a binder resin, a conductivity imparting agent, and a solvent, A continuous inkjet coating composition wherein the content of the insect repellent component is 0.03% by mass or more and 10% by mass or less of the entire continuous inkjet coating composition.

2. The continuous inkjet coating composition according to claim 1, wherein the content of the binder resin is 3% by mass or more and 8% by mass or less with respect to the entire continuous inkjet coating composition.

3. The continuous inkjet coating composition according to claim 1 or 2, wherein the content of the conductivity imparting agent is 0.15% by mass or more and 0.8% by mass or less of the entire continuous inkjet coating composition.

4. The continuous inkjet coating composition according to claim 1 or 2, wherein the insect repellent component comprises at least one selected from the group consisting of pyrethroid compounds, essential oils, essential oil components, and dibasic acid esters.

5. The coating composition for continuous inkjet printing according to claim 1 or 2, wherein the binder resin comprises a butyral resin.

6. The coating composition for continuous inkjet printing according to claim 1 or 2, wherein the conductivity imparting agent comprises at least one selected from sodium thiocyanate, potassium thiocyanate, and ammonium thiocyanate.

7. A method for producing a printed article, comprising the step of applying the continuous inkjet coating composition described in claim 1 or 2 onto a substrate using a continuous inkjet printer.

8. The substrate has a printing layer of a continuous inkjet coating composition comprising at least an insect repellent component, a binder resin, and a conductivity imparting agent, wherein the amount of insect repellent component adhering to the substrate is 0.5 mg / m². ２ 300mg / m or more ２ The following are printed materials.

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