WO2023157799A1 - Vernis, composition d'encre d'impression offset et procédé de production d'objet imprimé offset - Google Patents

Vernis, composition d'encre d'impression offset et procédé de production d'objet imprimé offset Download PDF

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Publication number
WO2023157799A1
WO2023157799A1 PCT/JP2023/004764 JP2023004764W WO2023157799A1 WO 2023157799 A1 WO2023157799 A1 WO 2023157799A1 JP 2023004764 W JP2023004764 W JP 2023004764W WO 2023157799 A1 WO2023157799 A1 WO 2023157799A1
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Prior art keywords
mass
offset printing
printing ink
ink composition
parts
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PCT/JP2023/004764
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English (en)
Japanese (ja)
Inventor
康成 西川
愼一 伊藤
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東京インキ株式会社
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Publication of WO2023157799A1 publication Critical patent/WO2023157799A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M1/00—Inking and printing with a printer's forme
    • B41M1/06—Lithographic printing
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/02—Printing inks
    • C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
    • C09D11/033—Printing inks characterised by features other than the chemical nature of the binder characterised by the solvent

Definitions

  • the present invention relates to a varnish, an offset printing ink composition, and a method for producing an offset printed matter.
  • Patent Document 1 proposes a Non-VOC offset printing ink composition using a biomass-derived fatty acid ester.
  • Patent Document 2 proposes a hydrocarbon-based fluid derived from products derived from biomass conversion, containing more than 50% by weight of isoparaffins and 40% by weight or less of naphthenes. can be used as a component of a "coldset" newsprint offset ink composition.
  • JP 2016-204557 A Japanese Patent Publication No. 2012-520370
  • Patent Document 1 only the fatty acid ester is derived from biomass, and a petroleum-based high-boiling solvent such as AF Solvent No. 7 is used to the same extent as conventional offset printing inks.
  • Patent Document 2 only mentions "a hydrocarbon-based fluid derived from a product derived from biomass conversion", and is about “biomass conversion” regarding a hydrocarbon-based fluid (which seems to be synonymous with "petroleum-based high-boiling-point solvent”). No explanation, no hint.
  • Offset printing In offset printing inks, petroleum-based high-boiling solvents are normally used in an amount of 20 to 45% by mass based on the total amount of ink. Offset printing is used for printed materials that are often printed in large quantities, such as general books and newspapers.
  • An object of the present invention is to provide a varnish, an offset printing ink composition, and a method for producing an offset printed matter that exhibit performance equal to or greater than that obtained when using a petroleum-based solvent while using a biomass-derived solvent.
  • Another object of the present invention is to provide an offset printing ink composition with reduced environmental load by using a biomass-derived solvent instead of a petroleum-based solvent, and a method for producing a printed matter using the same.
  • the following varnish, offset printing ink composition, and method for producing an offset printed matter are provided.
  • a varnish used in an offset printing ink composition the varnish containing a hydrocarbon solvent derived from biomass and having a boiling point of 200°C or higher;
  • the varnish according to (1) wherein the biomass-derived hydrocarbon solvent having a boiling point of 200° C. or higher contains an ⁇ -olefin solvent.
  • varnishes (5) an offset printing ink composition containing the varnish according to any one of (1) to (4); (6) an offset printing ink composition containing a biomass-derived hydrocarbon solvent having a boiling point of 200° C. or higher; (7) The content of the biomass-derived hydrocarbon solvent having a boiling point of 200° C. or higher relative to 100 parts by mass of the offset printing ink composition is 1 part by mass or more and 90 parts by mass or less, according to (5) or (6).
  • offset printing ink composition (8) The offset printing ink composition according to any one of (5) to (7), wherein the tack value evaluated by ⁇ Method 1> described below takes 26 minutes or longer to reach a peak value. thing, ⁇ Method 1> The offset printing ink composition is rotated with a digital incometer under conditions of an ink amount of 1.31 cc, a room temperature of 25°C, a roller temperature of 35°C, and a rotation speed of 1200 rpm, and the time required for the tack value to reach a peak value. Measure.
  • a varnish, an offset printing ink composition, and a method for producing an offset printed matter that exhibit performance equal to or greater than that obtained when using a petroleum-based solvent while using a biomass-derived solvent it is possible to provide a varnish, an offset printing ink composition, and a method for producing an offset printed matter with reduced environmental load.
  • the varnish according to the present embodiment is a varnish used in an offset printing ink composition, and contains a biomass-derived hydrocarbon-based solvent having a boiling point of 200° C. or higher.
  • the ⁇ -olefin NovaSolv 160 manufactured from biomass by Novvi LLC in the United States can be exemplified.
  • NovaSolv 160 is a mixture containing 1-hexadecene (content ratio: 95-99% by mass) and 1-octadecene (content ratio: 1-5% by mass).
  • part or all of the conventional petroleum-based solvent can be replaced with a biomass-derived hydrocarbon-based solvent.
  • the biomass-derived hydrocarbon-based solvent according to the present embodiment is produced from renewable biomass (plants). That is, it is produced through processes such as a plant cultivation process, a transportation process, and an ⁇ -olefin production process from plants. In these processes, CO 2 emissions are negative in the plant cultivation process, while positive in the transportation process and the production of ⁇ -olefins from plants. According to the environmental impact assessment of ILCD 2011 Midpoint [v1.0.10, August 2016], the ⁇ -olefin solvent according to the present embodiment has a total of It has been confirmed that CO 2 emissions are negative.
  • the production volume of offset printing ink in Japan is approximately 90,000 tons, most of which is thought to use petroleum-based solvents.
  • the petroleum solvent used in the offset printing ink is 2 14,000 tons to 32,000 tons can be replaced with the biomass-derived hydrocarbon-based solvent according to the present embodiment, making it possible to be sustainable and reduce CO 2 emissions.
  • the boiling point of the biomass-derived hydrocarbon solvent according to the present embodiment is 200° C. or higher, preferably 220° C. or higher, more preferably 240° C. or higher, still more preferably 250° C. or higher, still more preferably 260° C. or higher, From the viewpoint of suppressing the emission and scattering of VOC components into the atmosphere, the temperature is more preferably 265°C or higher, more preferably 270°C or higher, still more preferably 275°C or higher, and still more preferably 280°C or higher. Further, the boiling point of the biomass-derived biomass-derived hydrocarbon-based solvent according to the present embodiment is, for example, 350° C. or lower.
  • VOC is an abbreviation of Volatile Organic Compounds, which means volatile organic compounds.
  • the WHO defines VOC as a general term for substances with a boiling point of 50° C. to 260° C. among organic compounds that exist as gases in the atmosphere.
  • the biomass-derived hydrocarbon-based solvent according to the present embodiment preferably does not contain VOCs. As a result, even when the ink is used as an ink for offset rotary printing and passed through a drier during printing, VOC components are not released into the atmosphere or scattered.
  • the biomass-derived hydrocarbon-based solvent according to the present embodiment is, for example, selected from the group consisting of a chain saturated hydrocarbon solvent, a chain unsaturated hydrocarbon solvent, a cyclic saturated hydrocarbon solvent, and a cyclic unsaturated hydrocarbon solvent. from the viewpoint of further improving printing performance, it preferably contains a linear unsaturated hydrocarbon solvent, and more preferably contains an ⁇ -olefin solvent.
  • ⁇ -olefin solvents include, for example, ethylene, propylene, 1-butene, 1-pentene, 1-hexene, 1-heptene, 1-octene, 1-nonene, 1-decene, 1-undecene, 1 -dodecene, 1-tridecene, 1-tetradecene, 1-pentadecene, 1-hexadecene, 1-heptadecene, 1-octadecene, 1-nonadecene and 1-icosene, including one or more selected from the group consisting of printing From the viewpoint of further improving performance, it preferably contains one or more selected from the group consisting of 1-hexadecene and 1-octadecene, and more preferably contains 1-hexadecene and 1-octadecene.
  • the content of 1-hexadecene in the entire ⁇ -olefin solvent is preferably 75% by mass from the viewpoint of further improving printing performance. Above, more preferably 85% by mass or more, still more preferably 90% by mass or more, still more preferably 95% by mass or more, and, for example, 99% by mass or less.
  • the content of the biomass-derived hydrocarbon-based solvent with a boiling point of 200 ° C. or higher with respect to 100 parts by mass of the varnish is from the viewpoint of further improving the printing performance and from the viewpoint of further reducing the environmental load.
  • the varnish according to the present embodiment includes, for example, a biomass-derived solvent such as a petroleum solvent other than a hydrocarbon-based solvent having a boiling point of 200 ° C. or higher, a rosin-modified phenol resin, a vegetable oil (for example, soybean refined oil), a chelating agent (for example, aluminum chelating agents), stabilizers, higher alcohols, antioxidants, petroleum resins, and additives such as fatty acid esters.
  • a biomass-derived solvent such as a petroleum solvent other than a hydrocarbon-based solvent having a boiling point of 200 ° C. or higher, a rosin-modified phenol resin, a vegetable oil (for example, soybean refined oil), a chelating agent (for example, aluminum chelating agents), stabilizers, higher alcohols, antioxidants, petroleum resins, and additives such as fatty acid esters.
  • a biomass-derived solvent such as a petroleum solvent other than a hydrocarbon-based solvent having a boiling point of 200 ° C. or higher,
  • the content of the petroleum solvent with respect to 100 parts by mass of the varnish is preferably 1 part by mass or more, more preferably 2 parts by mass or more, and still more preferably 5 parts by mass. Above, more preferably 10 parts by mass or more, and preferably 50 parts by mass or less, more preferably 40 parts by mass or less, still more preferably 30 parts by mass or less, still more preferably 20 parts by mass or less.
  • Examples of commercially available petroleum solvents include "AF Solvent No. 7" manufactured by ENEOS Co., Ltd., which is a high boiling point petroleum solvent.
  • the content of the rosin-modified phenolic resin with respect to 100 parts by weight of the varnish is preferably 1 part by mass or more, more preferably 5 parts by mass or more, and still more preferably 10 parts by mass. parts by mass or more, more preferably 20 parts by mass or more, more preferably 30 parts by mass or more, still more preferably 40 parts by mass or more, and preferably 90 parts by mass or less, more preferably 80 parts by mass or less, and even more preferably 70 parts by mass or less, more preferably 60 parts by mass or less, more preferably 50 parts by mass or less.
  • Examples of commercially available rosin-modified phenolic resins include "Tamanol 412" manufactured by Arakawa Chemical Industries, Ltd., and the like.
  • the content of the vegetable oil with respect to 100 parts by mass of the varnish is preferably 1 part by mass or more, more preferably 2 parts by mass or more, and still more preferably 5 parts by mass. Parts by mass or more, more preferably 10 parts by mass or more, more preferably 15 parts by mass or more, and preferably 50 parts by mass or less, more preferably 40 parts by mass or less, even more preferably 30 parts by mass or less, still more preferably It is 20 parts by mass or less.
  • a commercial product of vegetable oil for example, Nisshin OilliO Group Co., Ltd. "soybean white squeezed oil" can be exemplified.
  • the method for producing the varnish according to the present embodiment is not particularly limited, it can be produced by heating each raw material and mixing while melting.
  • the offset printing ink composition according to this embodiment contains the above varnish.
  • the offset printing ink composition according to the present embodiment contains a hydrocarbon solvent derived from biomass and having a boiling point of 200°C or higher.
  • the content of the biomass-derived hydrocarbon-based solvent having a boiling point of 200° C. or higher with respect to 100 parts by mass of the offset printing ink composition is determined from the viewpoint of further improving printing performance and environmental load.
  • the content of the biomass-derived hydrocarbon solvent having a boiling point of 200° C. or higher with respect to 100 parts by mass of the offset printing ink composition is, from the viewpoint of improving on-press stability, It is preferably 5 parts by mass or more, more preferably 10 parts by mass or more, still more preferably 15 parts by mass or more, still more preferably 20 parts by mass or more, still more preferably 25 parts by mass or more, still more preferably 30 parts by mass or more.
  • the state in which on-board stability is improved refers to a state in which the time required for the tack value to reach a peak value is long, as evaluated by ⁇ Method 1> below, for example.
  • the time required for the tack value evaluated by ⁇ Method 1> below to reach a peak value is preferably 26 minutes or longer, more preferably 29 minutes or longer, and It is preferably 35 minutes or longer, more preferably 40 minutes or longer, still more preferably 45 minutes or longer, and still more preferably 50 minutes or longer.
  • the offset printing ink composition according to the present embodiment is rotated with a digital incometer under the conditions of an ink amount of 1.31 cc, a room temperature of 25° C., a roller temperature of 35° C., and a rotation speed of 1200 rpm until the tack value reaches a peak value. Measure the time required for
  • the tack value increases with the start of rotation, reaches a peak value at a certain point, and then decreases.
  • the reason why the tack value once reaches the peak value and then decreases is that the ink has peeled off on the ink meter roller at the time when the peak value is reached. Therefore, the time required for the tack value to reach the peak value can be regarded as the time required for ink peeling. That is, the longer the time required for the tack value to reach the peak value, the longer the time required for ink peeling, that is, the higher the on-press stability.
  • the density evaluated by ⁇ Method 2> below is preferably 2.00 or more, more preferably 2.05 or more, and still more preferably 2.10 or more. .
  • the offset printing ink composition according to the present embodiment includes, for example, a biomass-derived solvent such as a petroleum solvent other than a hydrocarbon solvent having a boiling point of 200° C. or higher, a rosin-modified phenol resin, a vegetable oil (for example, soybean refined oil), and a coloring agent. Further one or two or more selected from the group consisting of coloring agents such as pigments, fillers, chelating agents (e.g. aluminum chelating agents), stabilizers, higher alcohols, waxes, dispersants and additives such as antioxidants may contain.
  • a biomass-derived solvent such as a petroleum solvent other than a hydrocarbon solvent having a boiling point of 200° C. or higher, a rosin-modified phenol resin, a vegetable oil (for example, soybean refined oil), and a coloring agent.
  • coloring agents such as pigments, fillers, chelating agents (e.g. aluminum chelating agents), stabilizers, higher alcohols, waxes, dispersants and additives such as antioxidants
  • the content of the petroleum solvent with respect to 100 parts by mass of the offset printing ink composition is preferably 1 part by mass or more, more preferably 2 parts by mass. Above, more preferably 5 parts by mass or more, more preferably 10 parts by mass or more, still more preferably 20 parts by mass or more, still more preferably 30 parts by mass or more, and preferably 70 parts by mass or less, more preferably It is 60 parts by mass or less, more preferably 50 parts by mass or less, still more preferably 45 parts by mass or less, still more preferably 40 parts by mass or less.
  • Examples of commercially available petroleum solvents include "AF Solvent No. 7" manufactured by ENEOS Co., Ltd., which is a high boiling point petroleum solvent.
  • the content of the colorant with respect to 100 parts by mass of the offset printing ink composition is preferably 1 part by mass or more, more preferably 2 parts by mass or more, More preferably 5 parts by mass or more, more preferably 10 parts by mass or more, still more preferably 15 parts by mass or more, and preferably 50 parts by mass or less, more preferably 40 parts by mass or less, still more preferably 30 parts by mass parts or less, more preferably 20 parts by mass or less.
  • Commercially available coloring agents include "First Gen Blue FA5380" manufactured by DIC Corporation.
  • the method for producing the offset printing ink composition according to the present embodiment is not particularly limited. It can be produced by mixing other raw materials into the base.
  • a method for producing an offset printed matter according to the present embodiment includes a step of preparing a substrate and a step of offset printing the offset printing ink composition on the substrate.
  • the material of the base material is not particularly limited as long as it can be used for offset printing, but paper is preferable.
  • Examples of the paper used as the base material include raw paper (uncoated paper), lightly coated paper, coated paper (gloss/matte), art paper, and the like.
  • the method for producing an offset printed matter according to this embodiment preferably further includes a step of drying the offset-printed ink.
  • Comparative Example 1 is an ink composition equivalent to the conventionally widely used offset printing ink composition.
  • B is for Comparative Example 1
  • A is the case where the degree of discoloration is smaller than that of Comparative Example 1
  • B is the case where the degree of discoloration is the same as that of Comparative Example 1
  • B is the case where the degree of discoloration is greater than that of Comparative Example 1.
  • Example 1 was 52.5 minutes, Example 2 was 29.5 minutes, and Comparative Example 1 was 25.5 minutes. The results were evaluated in three grades from A to C. Specifically, B is for Comparative Example 1, A is longer than Comparative Example 1, B is equivalent to Comparative Example 1, and C is shorter than Comparative Example 1.
  • Emulsification limit rate 100 x (moisture content g at saturation/ink content g) The results were evaluated in two grades of B and C. Specifically, B is for Comparative Example 1, and C is for cases where the emulsification limit rate is higher or lower than that of Comparative Example 1.
  • Example 2 According to Table 2, in Example 1, all the petroleum-based high-boiling solvent (AF Solvent No. 7) was replaced with a biomass-derived ⁇ -olefin solvent, and in Example 2, the petroleum-based high-boiling solvent and biomass-derived ⁇ -olefin Although it corresponds to a biomass-derived ⁇ -olefin solvent of about 9% with respect to the total amount of the solvent, it is equivalent to or higher than Comparative Example 1, that is, an offset printing ink composition using a conventional petroleum-based high boiling point solvent. It turns out that it has performance.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Paints Or Removers (AREA)

Abstract

Un vernis destiné à être utilisé dans une composition d'encre d'impression offset, ledit vernis contenant un solvant à base d'hydrocarbure qui est dérivé de la biomasse et a un point d'ébullition supérieur ou égal à 200 °C.
PCT/JP2023/004764 2022-02-15 2023-02-13 Vernis, composition d'encre d'impression offset et procédé de production d'objet imprimé offset WO2023157799A1 (fr)

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JP2022-020987 2022-02-15
JP2022051767 2022-03-28
JP2022-051767 2022-03-28

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