WO2020162224A1 - Détergent pour machines d'impression - Google Patents

Détergent pour machines d'impression Download PDF

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Publication number
WO2020162224A1
WO2020162224A1 PCT/JP2020/002498 JP2020002498W WO2020162224A1 WO 2020162224 A1 WO2020162224 A1 WO 2020162224A1 JP 2020002498 W JP2020002498 W JP 2020002498W WO 2020162224 A1 WO2020162224 A1 WO 2020162224A1
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WIPO (PCT)
Prior art keywords
cleaning agent
cleaning
less
printing
ink
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PCT/JP2020/002498
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English (en)
Japanese (ja)
Inventor
加瀬裕貴
藤丸浩一
井上武治郎
Original Assignee
東レ株式会社
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Application filed by 東レ株式会社 filed Critical 東レ株式会社
Priority to EP20753165.8A priority Critical patent/EP3922464A4/fr
Priority to CN202080012210.6A priority patent/CN113382871B/zh
Priority to JP2020507116A priority patent/JP7413994B2/ja
Publication of WO2020162224A1 publication Critical patent/WO2020162224A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F35/00—Cleaning arrangements or devices
    • B41F35/02—Cleaning arrangements or devices for forme cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F35/00—Cleaning arrangements or devices
    • B41F35/06—Cleaning arrangements or devices for offset cylinders
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic compounds
    • C11D1/72—Ethers of polyoxyalkylene glycols
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/26—Organic compounds containing nitrogen
    • C11D3/33—Amino carboxylic acids

Definitions

  • the present invention relates to a cleaning agent for a printing machine. Furthermore, the present invention relates to a method for cleaning an active energy ray curable ink.
  • VOCs volatile organic compounds
  • Patent Document 1 discloses a lithographic printing detergent composition containing a glycol solvent as a main component, which is capable of washing active energy ray-curable ink.
  • Patent Document 2 discloses a cleaning agent for water-based ink that can be used for gravure and flexographic printing.
  • the cleaning agents described in Patent Documents 1 and 2 contain a solvent having carcinogenicity and flammability, have high volatility, and may deteriorate the global environment, work environment, and safety and health, so improvements are required. Was needed.
  • the object of the present invention is to provide a cleaning agent for a printing press, which has excellent cleaning properties and produces a small amount of VOCs.
  • an object of the present invention is to provide a method for cleaning active energy ray curable ink that is safe and has little environmental pollution.
  • the cleaning agent for a printing machine of the present invention contains at least water and a compound containing an amino group and a carboxyl group, and has a pH of 8.0 or more and 13.0 or less. Is.
  • the present invention cleans an active energy ray-curable ink using a cleaning agent for a printing machine, which contains at least water and a compound containing an amino group and a carboxyl group and has a pH of 8.0 or more and 13.0 or less. Is the way to do it.
  • the cleaning agent for a printing machine of the present invention can easily remove ink from the roller of the printing machine, and can efficiently clean the roller.
  • INDUSTRIAL APPLICABILITY According to the present invention, it is possible to obtain a cleaning agent for a printing press that produces a small amount of VOC (volatile organic compound).
  • the cleaning agent for a printing press of the present invention is safe and has little environmental pollution. ..
  • the installation of printing equipment is easy, it is safe, and there is little environmental pollution.
  • the present invention is a cleaning agent for a printing press, which contains at least water and a compound containing an amino group and a carboxyl group and has a pH of 8.0 or more and 13.0 or less.
  • the cleaning agent for a printing machine of the present invention has a pH of 8.0 or higher, preferably 10.0 or higher. When the pH is 8.0 or higher, the detergency is strong.
  • the cleaning agent for a printing machine of the present invention has a pH of 13.0 or less, preferably 12.0 or less. When the pH is 13.0 or less, it is easy to handle.
  • an amphoteric surfactant or a commonly used amino acid can be used as the compound containing an amino group and a carboxyl group contained in the detergent for a printing machine of the present invention.
  • amphoteric surfactant examples include lauryl aminopropionate, lauryl dimethyl betaine, stearyl dimethyl betaine, lauryl dihydroxyethyl betaine, 2-alkyl-N-carboxymethyl-N-hydroxyethyl imidazolinium betaine and the like.
  • 2-alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine is particularly preferable because it can adjust the pH of the cleaning agent to 8.0 or more by itself.
  • amino acids examples include glycine, alanine, valine, leucine, isoleucine, methionine, proline, phenylalanine, tryptophan, serine, threonine, asparagine, glutamine, arginine, histidine, lysine, aspartic acid, glutamic acid, tyrosine, and cysteine.
  • amino acids can be used in the L-form or D-form, and the hydrochloride salt can also be used.
  • these amino acids can be used alone or in admixture of two or more. Since the pH of the detergent can be adjusted to 8.0 or more and 13.0 or less, a basic amino acid is preferable as the compound containing an amino group and a carboxyl group.
  • Basic amino acids include arginine, lysine and histidine.
  • Amino acid has high solubility in water because it contains amino and carboxyl groups. Of these, arginine is preferable because it is easy to adjust the pH independently to 8.0 or more and 13.0 or less. When arginine is contained in the cleaning liquid, it is most preferable because it is more excellent in cleaning property and the amount of VOC generated is small. L-arginine is particularly preferable because it is easily available.
  • the cleaning agent for a printing press of the present invention preferably has a weight loss rate of less than 1% when heated at 1 atmosphere of 110° C. for 1 hour, and more preferably 0.5% or less.
  • the smaller the weight reduction rate the smaller the VOC emissions. Therefore, it is possible to obtain a cleaning agent for a printing machine, which has less influence on the human body and is excellent in global environment, working environment, and safety and health.
  • a device used for heating the cleaning agent for a printing press a conventionally known device may be used, and for example, a hot air drying oven SPHH-200 (manufactured by TABAI Co., Ltd.) can be used.
  • the cleaning agent for a printing press of the present invention can measure the amount of VOC emission by a photoionization detector (PID).
  • the VOC emission amount measured by MiniRAE 3000 (manufactured by Honeywell) of the cleaning agent of the present invention is preferably 100 ppm or less, more preferably 50 ppm or less, most preferably 10 ppm or less. ..
  • the pH of the cleaning agent for a printing machine of the present invention may be adjusted to pH 8.0 or more and 13.0 or less with only a compound containing an amino group and a carboxyl group, or a compound containing an amino group and a carboxyl group and an inorganic base may be used. In combination, the pH may be adjusted to 8.0 or more and 13.0 or less. In addition, a surfactant other than an amphoteric surfactant may be used in combination with an inorganic base to adjust the pH to 8.0 or more and 13.0 or less.
  • an inorganic base can be added for the purpose of adjusting the pH of the cleaning agent for a printing machine.
  • An inorganic base is preferably used because it has a high boiling point and does not generate VOC.
  • Specific examples of the inorganic base include lithium carbonate, sodium carbonate, alkali metal carbonates such as potassium carbonate, lithium hydrogen carbonate, sodium hydrogen carbonate, alkali metal bicarbonates such as potassium hydrogen carbonate, disodium hydrogen phosphate, and the like. Examples thereof include lithium hydroxide, sodium hydroxide, potassium hydroxide, rubidium hydroxide, cesium hydroxide, tetramethylammonium hydroxide and tetraethylammonium hydroxide. These may be used alone or in combination of two or more. May be.
  • the content of the compound containing an amino group and a carboxyl group is preferably 0.010 mass% or more, and 1.0 mass% when the total amount of the cleaning agent for a printing machine is 100 mass %. % Or more is more preferable.
  • the content of the compound containing an amino group and a carboxyl group is preferably 20.0% by mass or less and 10.0% by mass or less from the viewpoint of the solubility of the compound containing an amino group and a carboxyl group in water. It is more preferably 5.0% by mass or less.
  • an amino acid is preferably used as a compound containing an amino group and a carboxyl group.
  • the content of the amino acid is preferably 0.010% by mass or more, and more preferably 1.0% by mass or more in 100% by mass of the cleaning agent for a printing machine.
  • the content of amino acids is preferably 20.0% by mass or less, more preferably 10.0% by mass or less, and further preferably 5.0% by mass or less.
  • the amino acid content is more preferably 0.010 mass% or more and 20.0 mass% or less.
  • the content of a compound containing an amino group and a carboxyl group contained in the cleaning agent for a printing machine can be easily measured by GC-MS.
  • the content of compounds containing amino groups and carboxyl groups contained in the cleaning agent for printing machines was measured by dissolving the sample in water to 1.0 mass% and using it for GC-MS (EI, CI) measurement. can do.
  • the amino acid content can be easily measured by GC-MS.
  • the cleaning agent for a printing press according to the present invention may optionally contain an anionic surfactant or a cationic surfactant. Further, the cleaning agent for a printing press according to the present invention may contain a surfactant other than the amphoteric surfactant. Further, the cleaning agent for a printing machine according to the present invention may contain a nonionic surfactant. By including these surfactants, the wettability to the surface of the doctor blade made of resin is improved and the scraping property of the solution is improved, which is preferable.
  • anionic surfactant examples include fatty acid salts, hydroxyalkane sulfonates, alkane sulfonates, dialkylsulfosuccinates, polyoxyethylene alkylsulfophenyl ether salts, N-methyl-N-oleyl taurine sodium salts, N- Examples thereof include alkylsulfosuccinic acid monoamide disodium salt, polyoxyethylene alkyl ether sulfate ester salt, fatty acid monoglyceride sulfate ester salt, alkyl phosphate ester salt, and polyoxyethylene alkyl ether phosphate ester salt.
  • cationic surfactants include alkylamine salts, quaternary ammonium salts, polyoxyethylene alkylamine salts, polyethylene polyamine derivatives and the like.
  • Nonionic surfactants include polyoxyethylene alkyl ethers, polyoxyethylene alkyl phenyl ethers, polyoxyethylene polystyryl phenyl ethers, polyoxyethylene polyoxypropylene alkyl ethers, polyoxyethylene polyoxypropylene block Polymers, glycerin fatty acid partial esterification products, sorbitan fatty acid partial esterification products, pentaerythritol fatty acid partial esterification products, propylene glycol monofatty acid esters, sucrose fatty acid partial esterification products, polyoxyethylene sorbitan fatty acid partial esterification products, Polyoxyethylene sorbitol fatty acid partial esterification products, polyethylene glycol fatty acid ester esters, polyglycerin fatty acid partial esterification products, polyoxyethylenated castor oil, polyoxyethylene glycerin fatty acid partial esterification products, fatty acid diethanolamides, N, N- Examples thereof include bis-2-hydroxyalkylamines,
  • a cleaning liquid containing a nonionic surfactant is preferable because the ink can be easily scraped off by a doctor blade and the amount of VOC generated is small.
  • a cleaning liquid containing polyoxyethylene sorbitan fatty acid partial esterified products is more preferable because the ink can be easily scraped off by a doctor blade and the amount of VOC generated is small.
  • HLB hydrophilic-lipophilic balance ⁇ Hydrophilic-Lypophilic Balance>
  • HLB hydrophilic-lipophilic balance ⁇ Hydrophilic-Lypophilic Balance>
  • HLB hydrophilic-lipophilic balance ⁇ Hydrophilic-Lypophilic Balance>
  • HLB hydrophilic-lipophilic balance ⁇ Hydrophilic-Lypophilic Balance>
  • HLB hydrophilic-lipophilic balance ⁇ Hydrophilic-Lypophilic Balance>
  • HLB hydrophilic-lipophilic balance ⁇ Hydrophilic-Lypophilic Balance>
  • the hydrophilic group of the nonionic surfactant is preferably an ethylene oxide group from the viewpoint of facilitating removal of the remaining cleaning agent with water after cleaning the ink. .. Further, it is preferable that the nonionic surfactant has an ethylene oxide group.
  • polyoxyethylene alkyl ethers polyoxyethylene alkylphenyl ethers, polyoxyethylene polystyryl phenyl ethers, polyoxyethylene polyoxypropylene alkyl ethers, polyoxyethylene polyoxypropylene block polymers, polyoxyethylene polyoxypropylene block polymers, Oxyethylene sorbitan fatty acid partial esterification products, polyoxyethylene sorbitol fatty acid partial esterification products, polyethylene glycol fatty acid esters, polyoxyethylene-ized castor oil, polyoxyethylene glycerin fatty acid partial esterification products, polyoxyethylene alkylamines, etc. Can be mentioned. Polyoxyethylene sorbitan monolaurate is most preferable because it has high solubility in ink, high rinseability in water, and does not correspond to GHS described later.
  • the average added mole number of ethylene oxide groups is preferably 2 or more, more preferably 4 or more, and further preferably 5 or more. From the viewpoint of handleability and prevention of precipitation of the surfactant, the average added mole number of ethylene oxide groups is 50 or less, preferably 40 or less, and more preferably 30 or less.
  • the content of the nonionic surfactant is preferably 5% by mass or more, and more preferably 10% by mass, from the viewpoint that the ink and the cleaning agent for a printing machine can be easily scraped off by a doctor blade. It is above, and more preferably 15% by mass or more. From the viewpoint of removing the ink with a small amount of detergent, it is preferably 40% by mass or less, more preferably 30% by mass or less, and further preferably 25% by mass or less. The content of the nonionic surfactant is even more preferably 5% by mass or more and 40% by mass or less.
  • the cleaning agent for a printing machine of the present invention is preferably liquid at 10°C to 30°C. It is preferable that the surfactant is also a liquid in the range of 10°C to 30°C because it facilitates rinsing and washing with water.
  • the content of water is preferably 40% by mass or more, and more preferably 60% by mass or more from the viewpoint of suppressing the amount of VOC generation. From the viewpoint of ink solubility, the water content is preferably 99.99 mass% or less.
  • the cleaning agent for a printing press of the present invention more preferably has a water content of 40 mass% or more and 99.99 mass% or less.
  • the cleaning agent for a printing machine of the present invention can be used in an automatic roller cleaning machine.
  • the viscosity of the cleaning agent for a printing machine refers to a viscosity measured 1 minute after the start of stirring using a Brookfield type B type digital viscometer at a liquid temperature of 25° C. according to JISK7117-1:1999.
  • the viscosity of the cleaning agent for a printing machine is preferably 1.0 mPa ⁇ s or more, and more preferably 5.0 mPa ⁇ s or more, from the viewpoint of preventing dripping when using an automatic roller washer.
  • the viscosity of the cleaning agent for a printing machine is preferably 200 mPa ⁇ s or less, more preferably 150 mPa ⁇ s or less.
  • the cleaning agent for a printing press of the present invention preferably has a viscosity at 25° C. of 1.0 mPa ⁇ s to 200 mPa ⁇ s.
  • GHS Globally Hramonized System of Classification and Labeling of Chemicals
  • the GHS stipulates that "the pictograms that visually show the characteristics of hazards as a means of transmitting information and pictograms regarding incentives when handling are used" are used. From the description, it is possible to determine the non-adequacy of GHS.
  • ⁇ Chemical products corresponding to GHS are labeled with hazard classification.
  • the hazard category refers to the category of judgment criteria within each hazard class. Each category is indicated by a number, and the smaller the number, the higher the risk. These categories are relatively classified according to the intensity of hazard within the hazard class.
  • the cleaning agent for a printing press of the present invention can be used for cleaning the ink adhering to various members of the printing press, and is particularly preferably used for cleaning the blast drying ink and the active energy ray-curing ink.
  • the cleaning method using the cleaning agent for a printing machine of the present invention is a method in which flexographic printing, a plate and a roller during lithographic printing operation, an ink attached to a blanket, an impression cylinder, and the cleaning agent for a printing machine of the present invention are in contact with each other.
  • the cleaning process is performed.
  • the cleaning agent may be soaked directly into a piece of cloth to wipe off the ink adhering to the flexo, plate and printing machine during lithographic printing work, or a dedicated plate cleaning machine or automatic roller cleaning machine. It can also be used as a cleaning agent for automatic blanket cleaning machines.
  • the cleaning method using the cleaning agent for a printing machine of the present invention preferably further includes a step of further cleaning with water thereafter.
  • the cleaning agent for a printing machine of the present invention is preferably used for cleaning active energy ray-curable ink. It is more preferable to use the cleaning agent for a printing press of the present invention in an active energy ray-curable ink containing a polyfunctional (meth)acrylate having a hydroxyl group. Since the active energy ray-curable ink has a high ink polarity, it has high solubility in the cleaning agent according to the present invention, and good cleaning properties can be obtained.
  • polyfunctional (meth)acrylate having a hydroxyl group examples include poly(meth)acrylates of polyhydric alcohols such as trimethylolpropane, glycerin, pentaerythritol, diglycerin, ditrimethylolpropane and dipentaerythritol, and these.
  • polyhydric alcohols such as trimethylolpropane, glycerin, pentaerythritol, diglycerin, ditrimethylolpropane and dipentaerythritol, and these.
  • the cleaning agent for a printing machine of the present invention is preferably used for an active energy ray curable ink containing a resin having a hydrophilic group. Since the ink has high polarity, it has high solubility in the cleaning agent for a printing machine of the present invention, and good cleaning properties can be obtained.
  • hydrophilic group of the resin having a hydrophilic group polyethylene oxide group, hydroxyl group, carboxyl group, sulfo group, phosphoric acid group and the like can be mentioned.
  • a carboxyl group is particularly preferable because it has good pigment dispersibility.
  • the resin having a hydrophilic group examples include acrylic resin, styrene acrylic resin, styrene maleic acid resin, rosin-modified maleic acid resin, rosin-modified acrylic resin, epoxy resin, polyester resin, polyurethane resin, and phenol resin. However, it is not particularly limited.
  • the acid value of the resin having a hydrophilic group is preferably 30 mgKOH/g or more and 250 mgKOH/g or less.
  • the acid value of the resin having a hydrophilic group is preferably 30 mgKOH/g or more, more preferably 60 mgKOH/g or more, and 75 mgKOH/g in order to obtain good solubility of the resin in the cleaning agent for a printing machine. It is more preferably g or more. Further, it is preferably 250 mgKOH/g or less, more preferably 230 mgKOH/g or less, and further preferably 210 mgKOH/g or less from the viewpoint of ink handling property. Even more preferably, the acid value of the resin contained in the active energy ray-curable ink is 30 mgKOH/g or more and 250 mgKOH/g or less.
  • the acid value of the resin having a hydrophilic group is JIS K:0070: 1992 "Test method for acid value, saponification value, ester value, iodine value, hydroxyl value and saponification value of chemical product", "3.1. It can be determined in accordance with the "neutralization titration method”. ..
  • the cleaning agent for a printing press of the present invention is preferably a cleaning agent for a lithographic printing machine.
  • the method for washing the active energy ray-curable ink of the present invention uses a cleaning agent for a printing press containing at least water and a compound containing an amino group and a carboxyl group and having a pH of 8.0 or more and 13.0 or less. Then, the active energy ray curable ink is washed.
  • the method for cleaning the active energy ray-curable ink of the present invention preferably uses a cleaning agent for a printing press containing at least water and an amino acid and having a pH of 8.0 or more and 13.0 or less. Wash the energy ray curable ink.
  • the method for cleaning the active energy ray-curable ink of the present invention more preferably uses a cleaning agent for a printing machine, which contains at least water and a basic amino acid and has a pH of 8.0 or more and 13.0 or less. Then, the active energy ray curable ink is washed.
  • the cleaning time is more preferably 10 minutes or less. The cleaning time was measured by starting the measurement when the doctor blade came into contact with the roller and visually measuring the time until it was determined that the ink and the cleaning agent for the printing machine could be completely removed.
  • lithographic printing roller cleaning it is preferable to perform cleaning by scraping a solution obtained by dissolving the ink applied on the roller with a cleaning agent using a resin doctor blade.
  • thermoplastic resin polyethylene (PE), polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polyester such as polyethylene naphthalate (PEN), polypropylene (PP), polyamide (PA), polycarbonate (PC), poly Ether imide (PEI), polyether ether ketone (PEEK), polyether ketone (PEK), polyether sulfone (PES), polyimide (PI), polyacetal (POM), polyphenylene sulfide (PPS), polystyrene (PS), Examples include polyurethane (PU). Among these, at least one selected from the group consisting of polyethylene (PE), polyester, and polyacetal (POM) is preferably used from the viewpoints of abrasion resistance and adh
  • the contact angle of the doctor blade surface with water is preferably 50 degrees or less.
  • the contact angle of the doctor blade surface with water is preferably 40 degrees or less, and more preferably 20 degrees or less.
  • the method for setting the contact angle with water to 50 degrees or less include hydrophilic resin coating treatment, ultraviolet irradiation treatment, flame treatment, corona discharge treatment, and plasma treatment. From the viewpoint that the surface treatment can be made uniform, ultraviolet irradiation treatment, corona discharge treatment, and plasma treatment are preferable, and from the viewpoint of durability of the surface treatment, plasma treatment is more preferable.
  • the contact angle of the doctor blade surface with water is the glass substrate described in Japanese Industrial Standard JIS R3257: 1999 "Substrate glass surface wettability test method".
  • a known gas other than fluorine gas can be used.
  • a gas containing oxygen gas can be preferably used.
  • a hydrophilic group such as a carboxyl group, a hydroxyl group, and a carbonyl group can be formed on the doctor blade surface.
  • the number of times the washing liquid is applied in lithographic printing is 10 times or less.
  • the washability evaluation in planographic printing the presence or absence of the ink residue adhering to the ink roller was visually judged. 20 ml of the cleaning agent shown in Table 1 was applied on the roller at 1-minute intervals, and the number of times of application of the cleaning agent for a printing machine was once. ..
  • the number of times that all ink can be washed off is 2 or less.
  • a waste cloth was impregnated with the detergent for a printing press described in Example, the resin plate was wiped, and the presence or absence of ink residue adhering to the resin plate was visually judged. The time of wiping from one end of the resin plate to the other end was set to one wiping.
  • Resin I 0.4 equivalent of glycidyl methacrylate (GMA) is added to the carboxyl group of a copolymer composed of 25% by mass of methyl methacrylate, 25% by mass of styrene and 50% by mass of methacrylic acid, Resin I having an ethylenically unsaturated group and a hydrophilic group was obtained.
  • the obtained resin I had a weight average molecular weight of 34,000, an acid value of 102 mgKOH/g, and an iodine value of 2.0 mol/kg.
  • Hydrophilization treatment was performed by subjecting the doctor blade to plasma treatment under the following conditions.
  • ⁇ Cleanability test> ⁇ Flexographic printing> A photosensitive resin plate (“TORELIEF” (registered trademark) DWF95DIII, manufactured by Toray Industries, Inc.) is mounted on a flexographic printing tester (Flexiproof 100, manufactured by PrintCoat Instruments), and the anilox roll uses 400 lines. did. Ink I was supplied and 500 sheets were printed on a PET (polyethylene terephthalate) film (“Novaclear” (registered trademark), thickness: 100 ⁇ m, manufactured by Mitsubishi Chemical Corporation). Thereafter, the waste was impregnated with the cleaning agent for a printing machine described in Example, the cylinder was wiped, and the cleaning property was visually evaluated.
  • TORELIEF registered trademark
  • DWF95DIII manufactured by Toray Industries, Inc.
  • a waterless planographic printing plate (TAN-E, manufactured by Toray Industries, Inc.) was mounted on an offset printing machine (Oliver 266EPZ, manufactured by Sakurai Graphic System Co., Ltd.). Ink I or Ink II was supplied so that the reflection density of the solid print portion would be 1.6 (indigo), and 500 sheets were printed. After that, 20 ml of the cleaning agent described in the example was applied onto the roller at 1-minute intervals, and the ink was dissolved using a doctor blade (Nulight doctor blade manufactured by Shinoda Shoji Co., Ltd., thickness: 27 mm) and for a printing machine. The cleaning agent was removed.
  • FIG. 1 shows a sectional view of an apparatus for testing the cleaning property of ink in the present invention.
  • the ink is transferred to the printing plate of the plate cylinder by the roller.
  • the ink is collected with a doctor blade after being used for printing.
  • the measurement of the cleaning time was started when the doctor blade came into contact with the roller, and visually measured the time until it was judged that the ink and the cleaning agent for the printing machine could be completely removed.
  • the washing time is preferably 10 minutes or less, and more preferably 5 minutes or less. It was judged that the cleaning agent which requires 20 minutes or more for the cleaning time cannot be cleaned.
  • SDS is an acronym for SAFETY DATA SHEEET "Safety Data Sheet”. It is a chemical substance that a business entity delivers when it transfers or provides chemical substances and products containing chemical substances to other businesses. It is a document that describes hazard information. It was judged that raw materials that do not show the GHS mark are superior to the effects on the human body, the global environment, the work environment, and health and safety.
  • the number in parentheses represents the average number of moles of ethylene oxide groups added.
  • Example 1 The detergent composition shown in Table 1 was weighed and the mixture was stirred for 10 minutes to obtain a detergent for a printing machine. When pH was measured, a cleaning agent for a printing machine having a pH of 11.2 was obtained. When a cleaning property test was carried out using AkwaConte K (manufactured by Toyo Ink Co., Ltd.) by the flexographic printing method, the ink could be completely removed from the plate by wiping twice. When the VOC generation amount was measured, the generation amount was 50 ppm. When the GHS mark was confirmed from the SDS of each raw material, the following marks were confirmed for potassium hydroxide.
  • Example 1 Each cleaning agent was evaluated in the same manner as in Example 1 except that the composition of the cleaning agent was changed to that shown in Table 1. The results are shown in Table 1.
  • Example 4 The detergent composition shown in Table 2 was weighed, and the mixture was stirred for 10 minutes to obtain a detergent for a printing machine. When pH was measured, a cleaning agent for a printing machine having a pH of 11.2 was obtained. When a detergency test was conducted using Ink I by the lithographic printing method, the ink could be completely removed from the roller within 10 minutes from the start of washing. It was 50 ppm when the VOC generation amount was measured. When the GHS mark was confirmed from the SDS of each raw material, the same mark as in Example 1 was confirmed for potassium hydroxide.
  • the heating residue rate was 99.6 mass %, so it was judged that the cleaning agent for the printing machine of Example 4 was not VOC.
  • the viscosity was measured, it was 2 mPa ⁇ s, and it was judged that it could be used in an automatic roller washer.
  • Example 5 to 8 and Comparative Examples 2 and 3 The cleaning agent for each printing press was evaluated in the same manner as in Example 4 except that the cleaning agent composition was changed to that shown in Table 2. The results are shown in Table 2.
  • Example 9 The detergent composition shown in Table 3 was weighed and the mixture was stirred for 10 minutes to obtain a detergent for a printing machine.
  • a cleaning agent for a printing machine having a pH of 11.2 was obtained.
  • Ink II could be completely removed from the roller in 8 minutes from the start of washing.
  • the generation amount was less than 10 ppm.
  • the GHS mark was confirmed from the SDS of each raw material, the same mark as in Example 1 was confirmed for potassium hydroxide.
  • the method 24 was measured, the residual heating rate was 99.6 mass %, so it was judged that the cleaning agent for a printing machine of Example 9 was not VOC.
  • the viscosity was measured, it was 2 mPa ⁇ s, and it was judged that it could be used in an automatic roller washer.
  • Example 10 to 15 and Comparative Example 4 Each cleaning agent was evaluated in the same manner as in Example 9 except that the composition of the cleaning agent was changed to that shown in Table 3. The results are shown in Table 3.
  • Example 16 to 20 and Comparative Examples 5 to 7 Each cleaning agent was evaluated in the same manner as in Example 9 except that the composition of the cleaning agent was changed to that shown in Table 4. The results are shown in Table 4.
  • Example 21 to 33 Each cleaning agent was evaluated in the same manner as in Example 9 except that the composition of the cleaning agent was changed to that shown in Table 5. The results are shown in Table 5.
  • Example 34 to 38 Each cleaning agent was evaluated in the same manner as in Example 9 except that the composition of the cleaning agent was changed to that shown in Table 6. The results are shown in Table 6.
  • Example 39 The doctor blade of Example 35 was subjected to hydrophilic treatment under the conditions described in ⁇ Hydrophilic treatment of doctor blade> column (Fuji Shoko Co., Ltd., “Plastic Doctor” (registered trademark), HI). An ink cleaning test was performed in the same manner as in Example 9 except that the composition was changed to -PE). The results are shown in Table 7.
  • Example 40 The doctor blade of Example 35 was subjected to hydrophilic treatment under the conditions described in ⁇ Hydrophilic treatment of doctor blade> column ("Plastic Doctor” (registered trademark), HI manufactured by Fuji Shoko Co., Ltd.). An ink cleaning test was performed in the same manner as in Example 9 except that the composition was changed to -PE). The results are shown in Table 7.
  • Example 41 The doctor blade of Example 35 was subjected to hydrophilic treatment under the conditions described in ⁇ Hydrophilic treatment of doctor blade> column ("Plastic Doctor” (registered trademark), HI manufactured by Fuji Shoko Co., Ltd.). An ink cleaning test was performed in the same manner as in Example 9 except that the ink composition was changed to -POM). The results are shown in Table 7.
  • Example 42 As a treatment for making the doctor blade hydrophilic, a doctor blade of polyacetal (manufactured by Fuji Shoko Co., Ltd., "Plastic Doctor” (registered trademark), HI-POM) was prepared by changing the gas species from oxygen to argon. Using this doctor blade, an ink cleaning test was conducted in the same manner as in Example 9. The results are shown in Table 7.
  • Example 43 In addition to the hydrophilized doctor blade of Example 38, a blade was further prepared in which the gas species was changed to oxygen and the hydrophilization was performed. Using this doctor blade, an ink cleaning test was conducted in the same manner as in Example 9. The results are shown in Table 7.
  • the detergent containing a compound containing an amino group and a carboxyl group and having a pH of 8.0 or more and 13.0 or less has excellent detergency and VOC emission in a short time. It was found to show the effect of quantity control.
  • the cleaning agent for a printing machine of the present invention can easily remove ink from the roller of the printing machine, and can make the roller efficient.
  • INDUSTRIAL APPLICABILITY According to the present invention, it is possible to obtain a cleaning agent for a printing press that produces a small amount of VOC (volatile organic compound).
  • the cleaning agent for a printing press of the present invention is safe and has little environmental pollution.
  • the installation of printing equipment is easy, it is safe, and there is little environmental pollution.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Detergent Compositions (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Printing Plates And Materials Therefor (AREA)

Abstract

La présente invention concerne un détergent pour machines d'impression, ledit détergent contenant au moins de l'eau et un composé qui contient un groupe amino et un groupe carboxyle, et ayant un pH de 8,0 à 13,0, inclus.　Avec ce détergent pour machines d'impression, il est facile d'éliminer l'encre des rouleaux de machines d'impression et de nettoyer efficacement les rouleaux. La présente invention permet d'obtenir un détergent pour machines d'impression qui génère des quantités minimales de composés organiques volatils (COV). Ce détergent pour machines d'impression est sûr et provoque une pollution environnementale minimale. La présente invention concerne également un procédé de nettoyage d'encre durcissable par faisceau d'énergie active à l'aide d'un détergent pour machines d'impression, ledit détergent contenant au moins de l'eau et un composé qui contient un groupe amino et un groupe carboxyle, et ayant un pH de 8,0 à 13,0, inclus.　Ce procédé de nettoyage d'une encre durcissable par faisceau d'énergie active facilite l'installation sur un équipement d'impression, est sûr, et provoque une pollution environnementale minimale.
PCT/JP2020/002498 2019-02-04 2020-01-24 Détergent pour machines d'impression WO2020162224A1 (fr)

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EP20753165.8A EP3922464A4 (fr) 2019-02-04 2020-01-24 Détergent pour machines d'impression
CN202080012210.6A CN113382871B (zh) 2019-02-04 2020-01-24 印刷机用清洗剂
JP2020507116A JP7413994B2 (ja) 2019-02-04 2020-01-24 印刷機用洗浄剤

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022160034A1 (fr) * 2021-01-29 2022-08-04 Fluid Energy Group Ltd Compositions caustiques de nettoyage-en-place

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08501589A (ja) * 1992-09-17 1996-02-20 デラックス・コーポレーション インキ組成物と、このような組成物の製造、使用及び回収方法
JP2003301197A (ja) 2002-04-12 2003-10-21 Toyo Ink Mfg Co Ltd 水性インキ用洗浄剤組成物
JP2006342313A (ja) * 2005-06-10 2006-12-21 Koyo Kagaku Kogyo Kk 紫外線硬化インキ用洗浄組成物
WO2007119392A1 (fr) * 2006-03-17 2007-10-25 Arakawa Chemical Industries, Ltd. Composition de nettoyant servant à enlever un décapant pour soudure sans plomb, agent de rinçage servant à enlever un décapant pour soudure sans plomb et procédé servant à enlever un décapant pour soudure sans plomb
JP2013518138A (ja) * 2010-01-21 2013-05-20 サン ケミカル コーポレーション 低揮発性有機化合物系
JP2016056319A (ja) * 2014-09-11 2016-04-21 石原ケミカル株式会社 洗浄液および洗浄方法
JP2016060156A (ja) * 2014-09-19 2016-04-25 サカタインクス株式会社 洗浄液および洗浄方法
JP2017094663A (ja) 2015-11-27 2017-06-01 Ｄｉｃグラフィックス株式会社 平版印刷機用インキローラー洗浄剤、及びブランケットローラー洗浄剤

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5308390A (en) * 1992-09-17 1994-05-03 Deluxe Corporation Ink composition and method of making and using such composition
US5888308A (en) * 1997-02-28 1999-03-30 International Business Machines Corporation Process for removing residue from screening masks with alkaline solution
JP2001255667A (ja) * 2000-03-09 2001-09-21 Fuji Photo Film Co Ltd 自動現像機の現像浴の洗浄液及び洗浄方法
JP2004269732A (ja) * 2003-03-10 2004-09-30 Toyo Ink Mfg Co Ltd 水性洗浄可能な印刷インキ
US8222194B2 (en) * 2008-05-09 2012-07-17 Rhodia Operations Cleaning compositions incorporating green solvents and methods for use
JP5274602B2 (ja) * 2011-02-24 2013-08-28 富士フイルム株式会社 平版印刷版用版面洗浄剤及び平版印刷版の版面処理方法
JP6074231B2 (ja) * 2012-11-12 2017-02-01 株式会社ミマキエンジニアリング インクジェット装置用洗浄液及びインクジェット用装置の洗浄方法
JP6443163B2 (ja) * 2015-03-24 2018-12-26 ブラザー工業株式会社 洗浄液、洗浄液とインクセットのキット、インクジェット記録装置及びインクタンクの洗浄方法
CN104845745A (zh) * 2015-05-11 2015-08-19 长沙市宇顺显示技术有限公司 导电墨水布线用清洗剂、印刷电子电路板清洗方法
CN108546450A (zh) * 2018-07-18 2018-09-18 南京信息工程大学 环保型水基油墨清洗剂及其制备方法

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08501589A (ja) * 1992-09-17 1996-02-20 デラックス・コーポレーション インキ組成物と、このような組成物の製造、使用及び回収方法
JP2003301197A (ja) 2002-04-12 2003-10-21 Toyo Ink Mfg Co Ltd 水性インキ用洗浄剤組成物
JP2006342313A (ja) * 2005-06-10 2006-12-21 Koyo Kagaku Kogyo Kk 紫外線硬化インキ用洗浄組成物
WO2007119392A1 (fr) * 2006-03-17 2007-10-25 Arakawa Chemical Industries, Ltd. Composition de nettoyant servant à enlever un décapant pour soudure sans plomb, agent de rinçage servant à enlever un décapant pour soudure sans plomb et procédé servant à enlever un décapant pour soudure sans plomb
JP2013518138A (ja) * 2010-01-21 2013-05-20 サン ケミカル コーポレーション 低揮発性有機化合物系
JP2016056319A (ja) * 2014-09-11 2016-04-21 石原ケミカル株式会社 洗浄液および洗浄方法
JP2016060156A (ja) * 2014-09-19 2016-04-25 サカタインクス株式会社 洗浄液および洗浄方法
JP2017094663A (ja) 2015-11-27 2017-06-01 Ｄｉｃグラフィックス株式会社 平版印刷機用インキローラー洗浄剤、及びブランケットローラー洗浄剤

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3922464A4

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022160034A1 (fr) * 2021-01-29 2022-08-04 Fluid Energy Group Ltd Compositions caustiques de nettoyage-en-place

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EP3922464A1 (fr) 2021-12-15
CN113382871B (zh) 2023-08-08

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