WO2021240726A1 - Encre aqueuse pour jet d'encre, film de transfert, matière imprimée, et procédé de production associé - Google Patents

Encre aqueuse pour jet d'encre, film de transfert, matière imprimée, et procédé de production associé Download PDF

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Publication number
WO2021240726A1
WO2021240726A1 PCT/JP2020/021129 JP2020021129W WO2021240726A1 WO 2021240726 A1 WO2021240726 A1 WO 2021240726A1 JP 2020021129 W JP2020021129 W JP 2020021129W WO 2021240726 A1 WO2021240726 A1 WO 2021240726A1
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WIPO (PCT)
Prior art keywords
film
water
transfer
transfer film
mass
Prior art date
Application number
PCT/JP2020/021129
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English (en)
Japanese (ja)
Inventor
新二 田渕
Original Assignee
ローランドディー．ジー．株式会社
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Filing date
Publication date
Application filed by ローランドディー．ジー．株式会社 filed Critical ローランドディー．ジー．株式会社
Priority to PCT/JP2020/021129 priority Critical patent/WO2021240726A1/fr
Priority to JP2022527394A priority patent/JP7495495B2/ja
Publication of WO2021240726A1 publication Critical patent/WO2021240726A1/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
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/16—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like
    • B44C1/165—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like for decalcomanias; sheet material therefor
    • B44C1/17—Dry transfer
    • 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
    • C09D11/30—Inkjet printing inks
    • C09D11/32—Inkjet printing inks characterised by colouring agents
    • C09D11/322—Pigment inks

Definitions

  • the present invention relates to a water-based inkjet ink for forming a print layer of a transfer film.
  • the present invention also relates to a transfer film.
  • the present invention also relates to a printed matter and a method for producing the same.
  • the print layer cannot be directly adhered to the leather, and the print layer is adhered to the leather via the adhesive layer. Therefore, there is a problem that the texture of the leather may be impaired by this adhesive layer. Further, providing the adhesive layer on the transfer film requires a step of forming the adhesive layer, which causes a decrease in the productivity of the transfer film.
  • the present invention has been made in view of the above points, and the present invention can form a printed layer of a transfer film which is excellent in print quality, transfer quality, and bending resistance and can be directly adhered to leather. It is an object of the present invention to provide a water-based inkjet ink.
  • the water-based inkjet ink according to the present invention contains at least water (A), a pigment (B), a water-soluble organic solvent component (C), a silicone-based surfactant (D), and resin fine particles (E).
  • the ink contains 9 parts by mass of at least one substituted butanol selected from the group consisting of 3-methoxy-1-butanol and 3-methoxy-3-methyl-1-butanol as the water-soluble organic solvent component (C). % Or more and 27% by mass or less.
  • the resin fine particles (E) are urethane resin fine particles having a glass transition temperature of 0 ° C. or lower.
  • the content of the resin fine particles (E) in the ink is 2.5% by mass or more.
  • the water-based inkjet ink according to the present invention is for forming a print layer of a transfer film.
  • the transfer film according to the present invention has a printing layer formed by the above-mentioned water-based inkjet ink and a film base material.
  • the printed matter according to the present invention comprises a printed matter formed by the water-based inkjet ink and a transferred matter in contact with the printed layer, and the printed matter in contact with the printed layer.
  • the relative permittivity of the surface is 2.8 or more and 5.5 or less.
  • the method for producing a printed matter according to the present invention includes a step of preparing the transfer film, a step of arranging the printed layer of the transfer film so as to be in contact with the transferred object, and a step of arranging the transfer film.
  • the present invention comprises a step of lowering the pressure on the printed layer side to be lower than the pressure on the film substrate side of the transfer film so that the printed layer of the transfer film is brought into close contact with the transferred matter.
  • a water-based inkjet ink that is excellent in print quality, transfer quality, and bending resistance, and can form a print layer of a transfer film that can be directly adhered to leather.
  • the water-based inkjet ink according to the present invention contains at least water (A), a pigment (B), a water-soluble organic solvent component (C), a silicone-based surfactant (D), and resin fine particles (E).
  • the ink contains 9 parts by mass of at least one substituted butanol selected from the group consisting of 3-methoxy-1-butanol and 3-methoxy-3-methyl-1-butanol as the water-soluble organic solvent component (C). % Or more and 27% by mass or less.
  • the resin fine particles (E) are urethane resin fine particles having a glass transition temperature of 0 ° C. or lower.
  • the content of the resin fine particles (E) in the ink is 2.5% by mass or more.
  • the water-based inkjet ink according to the present invention is for forming a print layer of a transfer film.
  • the water-based inkjet ink according to the present invention contains water (A).
  • water (A) By containing water (A), the water-based inkjet ink has an advantage that the environmental load is small.
  • the water (A) used is not particularly limited, but from the viewpoint of preventing contamination with impurities, ion-exchanged water, ultra-filtered water, reverse osmosis water, distilled water, or ultrapure water is preferable, and ion-exchanged water is preferable. Is more preferable.
  • the content of water (A) in the water-based inkjet ink is preferably 40% by mass or more, more preferably 45% by mass or more, and even more preferably 50% by mass or more.
  • the content of water (A) is preferably 80% by mass or less, more preferably 75% by mass or less, and further preferably 70% by mass or less.
  • Pigment (B) As the pigment (B), either an inorganic pigment or an organic pigment can be used.
  • the pigment (B) can be used alone or in combination of two or more at any ratio.
  • organic pigments examples include azo pigments (eg, azo lakes, insoluble azo pigments, condensed azo pigments, chelate azo pigments, etc.), polycyclic pigments (eg, phthalocyanine pigments, perylene pigments, perinone pigments, anthraquinone pigments, quinacridone pigments). , Dioxazine pigments, indigo pigments, thioindigo pigments, isoindolinone pigments, quinofuralone pigments, etc.), dye chelate (eg, basic dye type chelate, acidic dye type chelate, etc.), nitro pigments, nitroso pigments, aniline black, etc. ..
  • azo pigments eg, azo lakes, insoluble azo pigments, condensed azo pigments, chelate azo pigments, etc.
  • polycyclic pigments eg, phthalocyanine pigments, perylene pigments, perinone pigments, anthr
  • inorganic pigments are titanium oxide, zinc flower, zinc sulfide, lead white, calcium carbonate, precipitating barium sulfate, white carbon, alumina white, kaolin clay, talc, bentonite, black iron oxide, cadmium red, bengara, molybdenum. Red, Molybdate Orange, Chrome Vermillion, Yellow Lead, Cadmium Yellow, Yellow Iron Oxide, Titanium Yellow, Chromium Oxide, Viridian, Titanium Cobalt Green, Cobalt Green, Cobalt Chrome Green, Victoria Green, Ultramarine, Navy Blue, Cobalt Blue, Cerulean Examples include blue, cobalt silica blue, cobalt zinc silica blue, manganese violet, cobalt violet and the like.
  • black pigment examples include carbon blacks (CI pigment black 7) such as furnace black, lamp black, acetylene black, and channel black; copper, iron (CI pigment black), and the like.
  • CI pigment black 7 carbon blacks
  • examples thereof include metals such as 11); metal oxides such as titanium oxide; and organic pigments such as aniline black (CI pigment black 1).
  • cyanide pigments examples include C.I. I. Pigment Blue 1,2,3,15: 1,15: 3,15: 4,15: 6,16,21,22,60,64 and the like.
  • magenta pigments examples include C.I. I. Pigment Red 5,7,9,12,31,48,49,52,53,57,97,112,120,122,146,147,149,150,168,170,177,178,179,184 188,202,206,207,209,238,242,254,255,264,269,282; C.I. I. Pigment Violet 19, 23, 29, 30, 32, 36, 37, 38, 40, 50 and the like.
  • yellow pigment examples include C.I. I. Pigment Yellow 1,2,3,12,13,14,16,17,20,24,74,83,86,93,94,95,109,110,117,120,125,128,129,137, 138, 139, 147, 148, 150, 151, 154, 155, 166, 168, 180, 185, 213 and the like can be mentioned.
  • pigments of other colors include C.I. I. Pigment Green 7, 10, 36; C.I. I. Pigment Brown 3, 5, 25, 26; C.I. I. Pigment Orange 2,5,7,13,14,15,16,24,34,36,38,40,43,62,63,64,71 and the like.
  • a pigment having a hydrophilic group such as a carboxyl group, a sulfonic acid group, a phosphonic acid group and a hydroxyl group can be used on the surface.
  • the carbon black self-dispersing pigment include CAB-O-JET200, 300, 352K, 400 (all manufactured by Cabot Corporation) and the like.
  • the cyanide self-dispersing pigment include CAB-O-JET250C, 450C, 554B (all manufactured by Cabot Corporation) and the like.
  • magenta self-dispersing pigment include CAB-O-JET260M, 265M, 465M (all manufactured by Cabot Corporation) and the like.
  • yellow self-dispersing pigment examples include CAB-O-JET270, 470Y, 740Y (all manufactured by Cabot Corporation) and the like.
  • a self-dispersing pigment is preferable as the coloring material (B) because it can be dispersed in water (A) without using a dispersant.
  • the content of the pigment (B) in the water-based inkjet ink is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, still more preferably 1% by mass or more as the solid content (solid content concentration).
  • the content of the pigment (B) is preferably 20% by mass or less, more preferably 15% by mass or less, still more preferably 12% by mass or less.
  • water-soluble organic solvent component (C) constituting the water-soluble organic solvent component (C) means an organic solvent having a solubility in water at 20 ° C. of 500 g / L or more.
  • the water-soluble organic solvent is preferably an organic solvent that is uniformly miscible with water at an arbitrary ratio at 20 ° C.
  • the water-based inkjet ink used here is a substitution of at least one selected from the group consisting of 3-methoxy-1-butanol and 3-methoxy-3-methyl-1-butanol as the water-soluble organic solvent component (C). It contains butanol in an amount of 9% by mass or more and 27% by mass or less.
  • This substituted butanol is a component that improves the initial drying rate of the water-based inkjet ink. If the content of the substituted butanol is less than 9% by mass, the initial drying rate becomes slow, image bleeding occurs, and the image quality deteriorates.
  • the content of the substituted butanol in the water-based inkjet ink is preferably 10% by mass or more, more preferably 12% by mass or more.
  • the content of the substituted butanol is preferably 25% by mass or less, more preferably 23% by mass or less, still more preferably 20% by mass or less.
  • the water-based inkjet ink may contain a water-soluble organic solvent other than the above-mentioned substituted butanol as the water-soluble organic solvent component (C).
  • a water-soluble organic solvent other than the substituted butanol a known water-soluble organic solvent for the water-based inkjet ink can be used without particular limitation.
  • diols are suitable as a water-soluble organic solvent other than the above-mentioned substituted butanol.
  • diols include ethylene glycol (boiling point: about 196 ° C.), diethylene glycol (boiling point: about 244 ° C.), triethylene glycol (boiling point: about 287 ° C.), propylene glycol (boiling point: about 188 ° C.), and dipropylene glycol.
  • diols diols having a linear or branched alkylene chain having 3 to 6 carbon atoms (particularly 4 to 5 carbon atoms) are preferable.
  • the content of the diols in the water-based inkjet ink is preferably 1.5% by mass or more, more preferably 3.0% by mass or more.
  • the content of the diols is preferably 20% by mass or less, more preferably 15% by mass or less.
  • glycol monoethers are suitable as a water-soluble organic solvent other than the above-mentioned substituted butanol because the image quality is particularly high.
  • glycol monoethers include triethylene glycol monobutyl ether (boiling point: about 278 ° C.), dipropylene glycol monomethyl ether (boiling point: about 190 ° C.), tripropylene glycol monomethyl ether (boiling point: about 242 ° C.), and propylene glycol.
  • glycol monoethers such as monomethyl ether (boiling point: about 194 ° C.), ethylene glycol-n-propyl ether (boiling point: about 150 ° C.), and ethylene glycol-n-butyl ether (boiling point: about 171 ° C.).
  • glycol monoethers methyl ether, ethyl ether, propyl ether, or butyl ether of diethylene glycol, triethylene glycol, dipropylene glycol, or tripropylene glycol is preferable.
  • the content of glycol monoethers in the water-based inkjet ink is preferably 1.5% by mass or more, more preferably 3.0% by mass or more.
  • the content of glycol monoethers is preferably 20% by mass or less, more preferably 15% by mass or less.
  • the water-based inkjet ink preferably contains both the above-mentioned diols and glycol monoethers as the water-soluble organic solvent component (C).
  • the content of the water-soluble organic solvent component (C) in the water-based inkjet ink is preferably 10% by mass or more, more preferably 15% by mass or more, still more preferably 20% by mass or more.
  • the content of the water-soluble organic solvent component (C) is preferably 55% by mass or less, more preferably 45% by mass or less, and further preferably 40% by mass or less.
  • silicone-based surfactant (D) As the silicone-based surfactant (D), a known silicone-based surfactant can be used without particular limitation, and it is also available as a commercially available product. Examples of commercially available products include BYK-306, BYK-307, BYK-333, BYK-345, BYK-346, BYK-347, BYK-348, BYK-349 (all manufactured by Big Chemie Japan), KF- 351A, KF-352A, KF-353, KF-354L, KF-355A, KF-615A, KF-945, KF-640, KF-642, KF-643, KF-6020, X-22-4515, KF- 6011, KF-6012, (above, manufactured by Shin-Etsu Chemical Co., Ltd.), Silface SAG002, SAG005, SAG503A, SAG008 (above, manufactured by Shin-Etsu Chemical Co., Ltd.) and the
  • the content of the silicone-based surfactant (D) in the inkjet ink may be appropriately determined so that the surface tension and the interfacial tension of the ink are optimized according to the type of the silicone-based surfactant used.
  • the content of the silicone-based surfactant (D) in the water-based inkjet ink is preferably 0.05% by mass or more, more preferably 0.2% by mass or more.
  • the content is preferably 5% by mass or less, more preferably 3.0% by mass or less, still more preferably 2.5% by mass or less.
  • resin fine particles (E) urethane resin fine particles having a glass transition temperature (Tg) of 0 ° C. or lower are used. Since the water-based inkjet ink contains fine particles of urethane resin having a glass transition temperature of 0 ° C. or lower, a print layer having excellent transfer quality can be formed on the film substrate, and the print layer can be formed on the film substrate. In addition to bending resistance, it has excellent adhesion to transferred materials (particularly leather). Therefore, the printed layer can be directly adhered to the leather.
  • Tg glass transition temperature
  • the glass transition temperature of the urethane resin is preferably ⁇ 5 ° C. or lower, more preferably ⁇ 10 ° C. or lower, and further preferably ⁇ 15 ° C. or lower. There is no particular limitation on the lower limit of the glass transition temperature of the urethane resin.
  • the glass transition temperature of the urethane resin is preferably ⁇ 65 ° C. or higher, more preferably ⁇ 55 ° C. or higher, still more preferably ⁇ 45 ° C. or higher.
  • the glass transition temperature can be measured according to a known method, and can be measured, for example, by using a thermal analyzer such as a differential scanning calorimeter (DSC).
  • the type of urethane resin is not particularly limited as long as the glass transition temperature is within the above range.
  • the urethane resin is preferably a urethane resin using a non-yellowing polyisocyanate compound and a carbonate polyol compound as monomers (that is, a polymer of a non-yellowing polyisocyanate compound and a carbonate polyol compound).
  • Examples of such urethane resins include Superflex 420, 420NS, 460, 460S, 470, 650 manufactured by Dai-ichi Kogyo Seiyaku Co., Ltd.
  • the volume average particle size of the resin fine particles (E) is not particularly limited, but is preferably 10 to 1000 nm, more preferably 10 to 200 nm, and even more preferably 10 to 50 nm.
  • the volume average particle size can be obtained by using, for example, a particle size distribution measuring device.
  • the content of the resin fine particles (E) in the water-based inkjet ink is 2.5% by mass or more, preferably 3.0% by mass or more, and more preferably 3.5 as the solid content (solid content concentration). It is mass% or more.
  • the content of the resin fine particles (E) in the water-based inkjet ink is not particularly limited, but is preferably 15% by mass or less, more preferably 12% by mass or less.
  • the mass ratio of the pigment (B) to the resin fine particles (E) is not particularly limited, but when the mass ratio becomes large, the transfer quality improving effect and the bending resistance improving effect, In addition, the effect of improving the adhesiveness to the transferred material (particularly leather) tends to be small. Therefore, the mass ratio (pigment (B) / resin fine particles (E)) is preferably 5 or less, more preferably 4 or less, and even more preferably 3 or less.
  • the water-based inkjet ink according to the present invention is for forming a print layer of a transfer film.
  • a transfer film can be produced by forming a printing layer on a film substrate by an inkjet method using the water-based inkjet ink according to the present invention while suppressing the occurrence of image bleeding and cracking of an image. That is, according to the water-based inkjet ink according to the present invention, a printed layer can be formed on a film substrate with excellent print quality. The printed layer formed on the film substrate can be transferred directly to a transfer target such as leather without using an adhesive layer, and is excellent in transfer quality at this time.
  • the transfer film can be produced only by forming a print layer on the film substrate. Therefore, according to the water-based inkjet ink according to the present invention, the productivity of the transfer film is also excellent.
  • the print layer of the transfer film is formed by an inkjet method, the manufactured transfer film is very suitable for decorating a part of the leather surface on demand, and decorates the entire surface of the leather. It can also be used for. Further, the printed layer transferred from the transfer film to the transferred body has excellent bending resistance and also has excellent adhesiveness to the transferred body (particularly leather).
  • the present invention is a transfer film having a printing layer formed by the above-mentioned water-based inkjet ink and a film substrate.
  • the film base material a known transfer film base material used in a transfer printing method such as leather may be used.
  • the film base material may have a single-layer structure consisting of only the base film, or may have a multi-layer structure in which other layers are formed on the base film.
  • the film substrate preferably has a multi-layer structure having a base film and a release coat layer.
  • the base film examples include polyester films such as polyethylene terephthalate film, polybutylene terephthalate film, and polyethylene naphthalate film; polyolefin films such as polypropylene film and polyethylene film; cellulose films such as diacetyl cellulose film and triacetyl cellulose film.
  • polyester films such as polyethylene terephthalate film, polybutylene terephthalate film, and polyethylene naphthalate film
  • polyolefin films such as polypropylene film and polyethylene film
  • cellulose films such as diacetyl cellulose film and triacetyl cellulose film.
  • examples thereof include a polyurethane film; a polyamide film; a polyimide film; a polyacrylate film; a polymethacrylate film; and a resin film such as a polycarbonate film.
  • a polyester-based film is preferable, and a polyethylene terephthalate film is more preferable, because the transfer quality is excellent.
  • the film base material of the transfer film according to the present invention preferably contains a polyester-based film.
  • a stretchable film particularly, a polyolefin-based film, a polyurethane-based film, etc.
  • the film substrate comprises a polyester-based film, a polyolefin-based film, or a polyurethane-based film.
  • the release coat layer may be the same as the release coat layer of a known multi-layer structure transfer film.
  • the release coat layer may be a silicone layer or a non-silicone layer.
  • the film base material When the film base material has a multi-layer structure, it may have a layer other than the base film and the release coat layer.
  • An example thereof is an antistatic treatment layer.
  • the transfer film has a print layer formed by the above-mentioned water-based inkjet ink. Therefore, the print layer is a layer of the dried product of the above-mentioned water-based inkjet ink. The print layer is in contact with the transfer film.
  • the adhesive layer is not essential in the transfer film according to the present invention. Therefore, the transfer film according to the present invention typically includes only a film substrate and a printing layer. However, the transfer film according to the present invention may further have a release liner or the like for the purpose of protecting the print layer.
  • the transfer film according to the present invention is produced by ejecting the above-mentioned water-based inkjet ink onto the above-mentioned film substrate by an inkjet method and drying the ejected water-based inkjet ink using a known inkjet recording device. be able to.
  • a suitable example of a method for producing a transfer film will be described.
  • Examples of the suitable manufacturing method include a step of preheating the film substrate (preheating step), a step of ejecting the above-mentioned aqueous inkjet ink onto the preheated film substrate (ejection step), and an ejected aqueous solution.
  • a step of drying the inkjet ink to form a print layer (drying step) is provided.
  • the preheating step can be performed, for example, by heating the film substrate with the preheater using an inkjet recording device equipped with a preheater. Alternatively, this can be done by heating the film substrate with a heater independent of the inkjet recording device. This heating is preferably performed so that the temperature of the film substrate is 40 ° C. or higher and 50 ° C. or lower. By performing the preheating step, the quality of the image formed on the film substrate can be further improved.
  • the ejection step can be performed by ejecting water-based inkjet ink onto the surface of the film substrate from the inkjet head of the inkjet recording device according to a known method.
  • the drying step can be performed by heating the ejected water-based inkjet ink using, for example, a heating device such as a heater or a hot plate. If the solvent contained in the water-based inkjet ink remains on the print layer, the remaining solvent may volatilize and the transfer quality may be lowered when the transfer film is heated for transfer to the transfer target. Therefore, the drying temperature is preferably 60 ° C. or higher and 120 ° C. or lower, and more preferably 80 ° C. or higher and 100 ° C. or lower. The drying time may be appropriately set according to the drying temperature, and is, for example, 5 minutes or more and 60 minutes or less.
  • the transfer film according to the present invention can be used for decoration by the transfer method according to a known method.
  • the printed layer of the transfer film can be directly transferred to leather such as natural leather, synthetic leather, artificial leather, and recycled leather without using an adhesive layer.
  • leather such as natural leather, synthetic leather, artificial leather, and recycled leather
  • the transfer film of the present invention is suitable for leather printing.
  • the transfer film according to the present invention can decorate an article having a surface relative permittivity of 2.8 or more and 5.5 or less, including leather, with excellent transfer quality.
  • the present invention comprises a printed matter formed by the above-mentioned water-based inkjet ink and a transferred matter that comes into contact with the printed layer, and the surface of the transferred matter that comes into contact with the printed layer. It is a printed matter having a relative permittivity of 8 or more and 5.5 or less.
  • Examples of the material of the transferred body having a surface relative permittivity of 2.8 or more and 5.5 or less include urethane resin, vinyl chloride resin, acrylic resin, acrylonitrile-butadiene-styrene resin (ABS resin), polycarbonate, and natural materials.
  • Examples include leather.
  • urethane resin, vinyl chloride resin, and acrylic resin are used for synthetic leather / artificial leather applications. Therefore, the transferred body is preferably made of urethane resin, vinyl chloride resin, acrylic resin, or natural leather.
  • the transferred body is preferably made of natural leather, synthetic leather, or artificial leather.
  • the relative permittivity of the surface of the transferred body can be measured, for example, in accordance with the transformer bridge method of ASTM D150 under the condition of a measurement frequency of 1 MHz.
  • the transferred body has at least the surface on which the print layer is transferred 2.8 or more and 5.5 or less. Therefore, in one embodiment of the present invention, the transferred body has a coating having a relative permittivity of 2.8 or more and 5.5 or less.
  • the transfer material may have a coating at least on the portion where the print layer is transferred. With such a coating, even articles having a relative permittivity outside the range of 2.8 or more and 5.5 or less can be decorated with the above transfer film.
  • the material of the coating is not particularly limited as long as the relative permittivity is 2.8 or more and 5.5 or less. It is preferably a coating of at least one resin selected from the group consisting of vinyl chloride resin, urethane resin, and acrylic resin.
  • the transferred body and the printed layer are in direct contact with each other. That is, in the printed matter according to the present invention, the transferred body and the printed layer are in contact with each other without interposing the adhesive layer. Therefore, the printed matter according to the present invention usually has a printed layer as a single layer on the surface of the transfer target. Therefore, there is an advantage that the texture of the transferred body is not impaired. In addition, the print layer has high bending resistance. In addition, the transferred print layer is particularly adhesive to leather. Therefore, in the printed matter according to the present invention, it is advantageous that the transferred body is made of leather.
  • the printed matter according to the present invention can be produced by using the above-mentioned transfer film.
  • it can be produced as follows. First, the transfer film is placed on a surface having a relative permittivity of 2.8 or more and 5.5 or less of the printed matter, and the printed matter is pressed while heating to transfer the printed layer of the transfer film to the transferred body. If necessary, the transferred print layer is heated and pressurized to fix the printed layer.
  • the transferred object is a three-dimensional object
  • the transferred object means that when the surface of the printed layer of the transfer film is a flat surface, at least a part of the surface of the transferred object to which the print layer is transferred is defined. Refers to the case where the surface of the print layer is inclined with respect to the surface of the print layer or has a curved surface.
  • the three-dimensional object typically includes an article having a curved surface, a convex portion, a concave portion, an inclined surface, or the like in part.
  • Suitable methods include the step of preparing the transfer film, the step of arranging the print layer of the transfer film so as to be in contact with the transferred object, and the pressure on the print layer side of the transfer film.
  • a method for producing a printed matter comprising a step of bringing the printed layer of the transfer film into close contact with the transferred object by lowering the pressure on the film substrate side of the transfer film. Therefore, from another aspect, the method for producing a printed matter according to the present invention is this method for producing a printed matter.
  • the step of preparing the transfer film can be performed, for example, by implementing a suitable specific example of the above-mentioned method for producing a transfer film. Further, another person may manufacture the above-mentioned transfer film and prepare it by purchasing the transfer film or the like.
  • the printed layer of the transfer film is brought into close contact with the transferred body by utilizing the pressure difference.
  • the method for causing the pressure difference include a method of reducing the pressure on the print layer side of the transfer film to less than 1 atm and a method of pressurizing the pressure on the film substrate side to more than 1 atm. Since it is easy to carry out, a method of reducing the pressure on the printing layer side of the transfer film to less than 1 atm is preferable.
  • the adhesion step is preferably performed by heating the transfer film.
  • the heating temperature may be appropriately determined depending on the film substrate of the transfer film and the constituent materials of the transferred body, and is, for example, 110 ° C. or higher and 160 ° C. or lower.
  • the step of bringing the transferred body into close contact can be performed, for example, by using a known vacuum forming machine that forms the decorative film in close contact with the surface of the adherend.
  • the vacuum forming machine includes a closed chamber that can be opened and closed in the vertical direction, a table provided at the lower part of the chamber, and a heater. After placing the transfer target on the table of the vacuum forming machine, the lower chamber and the upper chamber are closed while sandwiching the transfer film. As a result, a closed space surrounded by the lower part of the chamber and the transfer sheet and a closed space surrounded by the upper part of the chamber and the transfer sheet are formed. Then, the transfer sheet is heated by the heater.
  • the pressure on the print layer side of the transfer film When the pressure on the print layer side of the transfer film is reduced to less than 1 atm, the pressure in the closed space surrounded by the lower part of the chamber and the transfer sheet is reduced. On the other hand, when the pressure on the film substrate side is pressurized to exceed 1 atm, the closed space surrounded by the upper part of the chamber and the transfer sheet is pressurized.
  • the printed layer of the transfer film is brought into close contact with the transferred object by utilizing the pressure difference between the closed space surrounded by the upper part of the chamber and the transfer sheet and the closed space surrounded by the lower part of the chamber and the transfer sheet. Thereby, the adhesive layer of the transfer sheet can be transferred to the transferred body.
  • the film base material is expandable, and at this time, it is preferable that the film base material contains a polyolefin-based film or a polyurethane-based film.
  • stretchable means that the tensile elongation measured according to ASTM D882 at the transfer temperature is 150% or more.
  • the tensile elongation is preferably 200% or more, more preferably 300% or more, and further preferably 500% or more.
  • a step of further reducing the pressure or pressurizing and heating to fix the printed layer to the transferred object may be performed.
  • the heating temperature at this time may be appropriately determined according to the material of the transferred body, and is, for example, 110 ° C. or higher and 160 ° C. or lower.
  • this printed matter manufacturing method it is possible to decorate a three-dimensional object having irregularities or curved surfaces on the surface to be decorated with a single transfer.
  • This method for producing a printed matter is very advantageous when the transferred object is a three-dimensional object, but the transferred object does not have to be a three-dimensional object. Therefore, according to this method for manufacturing a printed matter, there are few restrictions on the shape of the transferred body and the decorative position, and printing can be easily performed using the transfer film. In particular, according to this printed matter manufacturing method, printing by the transfer method is possible with a small number of steps, including the preparation of a transfer film.
  • Examples 1-1 to 1-8 and Comparative Examples 1-1 to 1-4 [Preparation of transfer film] Each component shown in Tables 1 to 4 was uniformly mixed in the mass ratio shown in each table to obtain an inkjet ink set of each Example and each Comparative Example.
  • Each inkjet ink set is composed of cyan (C), magenta (M), yellow (Y), black (K), and white (Wh) ink.
  • This inkjet ink set is Roland Dee. Gee. It was installed in the inkjet printer "VS-3000i" manufactured by the same company.
  • the temperature of the preheater of this printer was set to 45 ° C., and printing was performed on the release transfer polyester film "Panapeel TP-3" manufactured by Panac (this process is called a "printing process”).
  • the printed polyester film was dried on a hot plate set at 100 ° C. for 30 minutes to obtain a transfer film having a printing layer on the polyester film.
  • Transfer quality In the transfer step, the state in which the printed layer was transferred from the polyester film to the artificial leather was observed, and the transfer quality was evaluated according to the following criteria. The results are shown in the table. A: The entire print layer is transferred from the polyester film to the artificial leather B: The transferred print layer is partially chipped C: The transferred print layer is notably chipped, or the print layer is not transferred. Or the transferred print layer spoils the texture of the artificial leather
  • Nichiban's cellophane tape was attached to the printed layer transferred to the artificial leather, and then the cellophane tape was peeled off. The condition at that time was evaluated according to the following criteria. The results are shown in the table.
  • C A part of the transferred print layer is peeled off from the artificial leather, and the base of the artificial leather is exposed.
  • CAB-O-JET260C Cyan-based self-dispersing pigment (aqueous emulsion with a solid content of 10% by mass)
  • CAB-O-JET260M manufactured by Cabot
  • Magenta self-dispersing pigment aqueous emulsion with a solid content of 10% by mass
  • CAB-O-JET270 manufactured by Cabot
  • Yellow self-dispersing pigment aqueous emulsion with a solid content of 10% by mass
  • CAB-O-JET300 Black self-dispersing pigment (aqueous emulsion with a solid content of 15% by mass)
  • WD-0024 manufactured by TAYCA
  • Titanium oxide aqueous emulsion with a solid content of 45%
  • SAG503A manufactured by Nissin Chemical Industry Co
  • Examples 2-1 to 2-7 and Comparative Examples 2-1 to 2-2> Using the transfer film prepared using the water-based inkjet ink set of Example 1-1, the materials shown in Table 5 were printed by the transfer method by the same method as described above. The results are shown in the table.
  • the transfer film produced by using the water-based inkjet ink set of Example 1-1 within the scope of the present invention has a relative permittivity of 2.8 or more and 5.5 on the surface of the transferred body. It can be seen that transfer is possible when the following is true.
  • Example 3-1 A transfer material having an acrylic resin coating layer was prepared by applying an acrylic resin paint (a metal undercoat spray manufactured by Nippe Home Products) to a metal toy car and drying it. The transferred material was placed on the table of a vacuum forming machine. A transfer film prepared using the water-based inkjet ink set of Example 1-1 was attached to a vacuum forming machine and heated to 130 ° C. The chamber of the vacuum forming machine was closed, the pressure on the transferred body side was reduced, and the transferred body and the transfer film were bonded together. Then, the pressure was reduced and the heat was applied to fix the printed layer of the transfer film on the transfer target.
  • an acrylic resin paint a metal undercoat spray manufactured by Nippe Home Products
  • the present invention is very useful for decorating articles having a surface relative permittivity of 2.8 or more and 5.5 or less, including leather.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Ink Jet Recording Methods And Recording Media Thereof (AREA)
  • Decoration By Transfer Pictures (AREA)

Abstract

La présente invention concerne une encre aqueuse pour jet d'encre qui peut former une couche imprimée pour un film de transfert, l'encre aqueuse pour jet d'encre présentant une excellente qualité d'impression, une excellente qualité de transfert et une excellente résistance à la flexion, et étant capable d'adhérer directement au cuir. L'encre aqueuse pour jet d'encre contient au moins de l'eau (A), un pigment (B), un composant solvant organique soluble dans l'eau (C), un tensioactif à base de silicone (D) et des microparticules de résine (E). L'encre contient, en tant que composant solvant organique soluble dans l'eau (C), 9 à 27 % en masse d'au moins un butanol substitué choisi dans le groupe constitué par le 3-méthoxy-1-butanol et le 3-méthoxy-3-méthyl-1-butanol. Les microparticules de résine (E) sont des microparticules d'une résine d'uréthane ayant une température de transition vitreuse inférieure ou égale à 0 °C. La teneur en microparticules de résine (E) dans l'encre est supérieure ou égale à 2,5 % en masse. L'encre aqueuse pour jet d'encre est utilisée pour former une couche imprimée pour un film de transfert.
PCT/JP2020/021129 2020-05-28 2020-05-28 Encre aqueuse pour jet d'encre, film de transfert, matière imprimée, et procédé de production associé WO2021240726A1 (fr)

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PCT/JP2020/021129 WO2021240726A1 (fr) 2020-05-28 2020-05-28 Encre aqueuse pour jet d'encre, film de transfert, matière imprimée, et procédé de production associé
JP2022527394A JP7495495B2 (ja) 2020-05-28 2020-05-28 水性インクジェットインク、転写フィルム、印刷物およびその製造方法

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05221110A (ja) * 1992-02-10 1993-08-31 Dainippon Printing Co Ltd 天然皮革への熱転写プリント方法
JPH1159089A (ja) * 1997-08-25 1999-03-02 Hosoyanobukichi Shoten:Kk 天然皮革への転写プリント方法
JP2006518678A (ja) * 2003-01-17 2006-08-17 ロバート ジョン マボット 表面上への画像の提供法
JP2007100289A (ja) * 2005-09-09 2007-04-19 Dainippon Ink & Chem Inc 皮革状物の製造方法
JP2007111867A (ja) * 2005-10-18 2007-05-10 Watanabe Norihiko インクジェット転写印刷法、転写シート及びその製造方法
JP2011224915A (ja) * 2010-04-22 2011-11-10 Oji Paper Co Ltd 転写シート
JP2017024412A (ja) * 2015-07-24 2017-02-02 株式会社リコー インクと記録用メディアのセット、インクジェット記録方法、インクジェット記録装置、及び記録物
JP2019077070A (ja) * 2017-10-23 2019-05-23 ローランドディー．ジー．株式会社 表面が合成樹脂製の皮革のインクジェット印刷方法、および表面が合成樹脂製の皮革用の水性インクジェットインク
JP2020029020A (ja) * 2018-08-22 2020-02-27 三菱製紙株式会社 パターン転写物の製造方法

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05221110A (ja) * 1992-02-10 1993-08-31 Dainippon Printing Co Ltd 天然皮革への熱転写プリント方法
JPH1159089A (ja) * 1997-08-25 1999-03-02 Hosoyanobukichi Shoten:Kk 天然皮革への転写プリント方法
JP2006518678A (ja) * 2003-01-17 2006-08-17 ロバート ジョン マボット 表面上への画像の提供法
JP2007100289A (ja) * 2005-09-09 2007-04-19 Dainippon Ink & Chem Inc 皮革状物の製造方法
JP2007111867A (ja) * 2005-10-18 2007-05-10 Watanabe Norihiko インクジェット転写印刷法、転写シート及びその製造方法
JP2011224915A (ja) * 2010-04-22 2011-11-10 Oji Paper Co Ltd 転写シート
JP2017024412A (ja) * 2015-07-24 2017-02-02 株式会社リコー インクと記録用メディアのセット、インクジェット記録方法、インクジェット記録装置、及び記録物
JP2019077070A (ja) * 2017-10-23 2019-05-23 ローランドディー．ジー．株式会社 表面が合成樹脂製の皮革のインクジェット印刷方法、および表面が合成樹脂製の皮革用の水性インクジェットインク
JP2020029020A (ja) * 2018-08-22 2020-02-27 三菱製紙株式会社 パターン転写物の製造方法

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