WO2004106080A1 - Papier d'enregistrement pour jet d'encre coule - Google Patents

Papier d'enregistrement pour jet d'encre coule Download PDF

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Publication number
WO2004106080A1
WO2004106080A1 PCT/JP2003/006685 JP0306685W WO2004106080A1 WO 2004106080 A1 WO2004106080 A1 WO 2004106080A1 JP 0306685 W JP0306685 W JP 0306685W WO 2004106080 A1 WO2004106080 A1 WO 2004106080A1
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WO
WIPO (PCT)
Prior art keywords
cast
recording paper
jet recording
ink jet
layer
Prior art date
Application number
PCT/JP2003/006685
Other languages
English (en)
Japanese (ja)
Inventor
Mitsuru Kobayashi
Shinichi Asano
Motoko Hiraki
Original Assignee
Oji Paper Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oji Paper Co., Ltd. filed Critical Oji Paper Co., Ltd.
Priority to PCT/JP2003/006685 priority Critical patent/WO2004106080A1/fr
Priority to CN03826535.4A priority patent/CN1771134A/zh
Priority to AU2003241838A priority patent/AU2003241838A1/en
Publication of WO2004106080A1 publication Critical patent/WO2004106080A1/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
    • 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
    • B41M5/52—Macromolecular coatings
    • B41M5/5218—Macromolecular coatings characterised by inorganic additives, e.g. pigments, clays
    • 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
    • B41M5/502—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording characterised by structural details, e.g. multilayer materials
    • B41M5/506—Intermediate layers
    • 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
    • B41M5/52—Macromolecular coatings

Definitions

  • the present invention relates to a photographic ink-jet recording paper having excellent gloss on a blank portion and a printing portion on which a recorded image is formed by using a water-based ink, and in particular, for a full-color image printed on an ink-jet recording paper.
  • the present invention relates to a cast-in jet recording paper which has a high print density, maintains ink absorbency, has excellent heat resistance and ozone resistance, and has excellent continuous operability.
  • the ink jet recording method in which water-based ink is ejected from a fine nozzle onto the ink jet recording paper to form an image, has low noise, enables high-speed recording, is easy to colorize, and has other features. Because they are cheaper than printing devices, they are used in a variety of applications, including terminal printers, facsimile machines, plotters, and form printing.
  • As ink jet recording paper high-quality paper devised to be rich in ink absorbency, and coated paper having a surface coated with a porous pigment are used.
  • all of these inkjet recording papers are mainly ink-jet recording papers with a low surface gloss, so-called matte tone, there is a demand for photographic ink-jet recording papers with high surface gloss and excellent appearance. .
  • inkjet recording paper is also preferred as inkjet recording paper.
  • advanced properties are required for inkjet recording paper, such as white paper and print gloss, ink absorption, image recording density, water resistance, light resistance, ozone resistance, heat resistance, etc.
  • inkjet recording paper that is excellent in quality and comparable to the silver halide method.
  • recording paper having a high surface gloss is coated with a plate-like pigment on the surface and, if necessary, subjected to a calender treatment, and is coated with high gloss or wet coating.
  • a so-called cast coated paper obtained by pressing and drying the layer on a heated drum surface having a mirror surface and copying the mirror surface is known, and is widely used as various printing papers.
  • the cast coated paper has higher surface gloss and better surface smoothness than a normal calender-finished coated paper, so that an excellent printing effect can be obtained. It is used exclusively for high-quality printed materials, etc., and has the same glossiness when used for inkjet recording paper, and is attracting attention as a relatively inexpensive recording medium among photographic ink jet recording papers. . A number of methods have been proposed to produce high-quality glossy ink jet recording paper satisfying the above characteristics by the cast coating method.
  • JP-A-62-95285 ink absorption is fast, drying is excellent, dimensional changes due to moisture absorption and dehumidification during recording and storage are unlikely to occur, and the area around the dot is A cast ink jet recording paper which is sharp, has a high resolution, and has a high smoothness and gloss on the coated surface is disclosed.
  • Japanese Patent Application Laid-Open No. 63-264391 discloses a good ink absorption.
  • a cast ink jet recording paper having both glossiness, water resistance of a recorded image, and dimensional stability has been disclosed.
  • Japanese Patent Application Laid-Open No. Hei 2-274758 discloses a multicolor ink jet using a water-based ink.
  • 5-9694 discloses a cast ink jet recording paper suitable for printing on ink, which is excellent in ink absorbency, smoothness and glossiness of the recording paper surface, and water resistance of the recording paper. Excellent density, sharpness and roundness, Japanese Patent Application Laid-Open No. 8-332771 discloses a cast ink jet recording paper capable of recording a full-color image with high image quality and high gradation, which is excellent in both ink absorption and productivity. Japanese Patent Application Laid-Open No. 2000-212128 discloses a cast ink jet recording paper having a high glossiness on the recording surface, a glossy smoothness close to that of a photograph, a high print density, excellent print water resistance, and excellent print water resistance. Also disclosed are methods for producing cast ink jet recording paper that maintain the fixability, absorbency, etc. of the ink jet ink.
  • the cast ink jet recording paper is not sufficiently peelable from the metal surface of the drum having a mirror-finished surface, resulting in poor continuous operability.
  • a cast inkjet recording paper generally has a bulky coating layer structure, so that the surface strength of the coating layer is lower than that of the cast coating paper used as printing paper. Low. Therefore, when the coating layer is pressed against the heated mirror drum and is dried, a part of the coating layer remains on the mirror drum, and there is a problem that the mirror drum surface becomes cloudy in proportion to the operation time.
  • a release agent used in the production of ordinary coated paper for printing or cast coated paper for printing can be used.
  • ozone properties it is necessary to select an excellent release agent that can withstand these quality requirements.
  • JP-A No. 1-77572 discloses an example in which the water resistance and the light resistance are particularly improved. This discloses that storage stability is improved by containing a cationic compound having a specific structure. Disclosure of the invention
  • the present invention relates to a photographic ink-jet recording paper having excellent glossiness of a blank portion and a printing portion on which a recorded image is formed using a water-based ink, and in particular, an image printed in full color on an ink-jet recording paper.
  • An object of the present invention is to provide a cast ink jet recording paper having a high print density, excellent heat resistance and excellent ozone resistance, and excellent continuous operation.
  • the present invention employs the following configuration in order to solve the above problems.
  • An undercoat layer containing a pigment, a cationic compound and an adhesive is provided on a base material.
  • the undercoat layer contains an adhesive, a fine pigment having an average secondary particle diameter of less than 1 m, and a release agent.
  • the cationic compound may be a copolymer of diarylamine and (meth) acrylamide, diarylamine and (meth) acrylamide, and another polymer copolymerizable with these.
  • a cast ink jet recording paper containing at least one selected from the group consisting of a fatty acid and a water-soluble salt thereof.
  • the present invention includes the following aspects.
  • BEST MODE FOR CARRYING OUT THE INVENTION The present inventors provided an undercoat layer containing a pigment, a cationic compound and an adhesive on a base material, and provided an adhesive and an average secondary particle on the undercoat layer.
  • the cationic compound is a copolymer of diarylamine and (meth) acrylamide, diarylamine. And a copolymer of (meth) acrylamide and another vinyl monomer copolymerizable therewith and substantially not containing a carboxyl group, or a salt thereof.
  • the continuous operability here means that there is no pick-shaped coating defect on the surface of the cast ink jet recording paper, and the mirror drum is not so dirty that the operation must be interrupted. is there.
  • the substrate used in the present invention is not particularly limited, and is a paper substrate such as acidic paper or neutral paper used for general coated paper, or a resin film having air permeability. Can be used.
  • the paper base is composed mainly of wood pulp and, if necessary, pigment.
  • wood pulp various chemical pulp, mechanical pulp, recycled pulp and the like can be used, and the degree of beating of these pulp can be adjusted by a beating machine in order to adjust paper strength, papermaking suitability, and the like.
  • the degree of freeness (freeness) of the pulp is not particularly limited, but is generally 250 to 5 It is about 50 ml (CSF: JIS -P- 8 1 2 1). Also, chlorine-free pulp such as so-called ECF and TCF pulp can be preferably used.
  • the pigment is blended for the purpose of imparting opacity or the like, or adjusting the ink absorbency, and calcium carbonate, calcined kaolin, silica, titanium oxide, or the like can be used.
  • the amount is preferably about 1 to 20% by mass, and if it exceeds 20% by mass, the paper strength may be reduced.
  • auxiliaries a sizing agent, a fixing agent, a paper strength enhancer, a cationizing agent, a retention improver, a dye, a fluorescent whitening agent and the like can be added.
  • starch, polybutyl alcohol, a cationic compound, and the like can be applied and impregnated to adjust the surface strength, degree of steak size, and the like.
  • the degree of steak size is preferably about 1 to 200 seconds. If the stick size is less than 1 second, there may be operational problems such as wrinkles during coating.If it is more than 200 seconds, the ink absorbency will decrease or ink strike-through will occur. Curling and cockling after printing may be significant.
  • the basis weight of the base material is not particularly limited, but is about 20 to 400 gZm 2 .
  • an undercoat layer containing a pigment, a cationic compound and an adhesive is provided on a substrate.
  • Examples of the cationic compound contained in the undercoat layer include a copolymer of diarylamine and (meth) acrylamide, diarylamine and (meth) acrylamide, and other vinyl monomers copolymerizable with these.
  • a copolymer of diarylamine and (meth) acrylamide, diarylamine and (meth) acrylamide, and other vinyl monomers copolymerizable with these By containing at least one kind of cationic compound selected from the group consisting of a copolymer containing no carboxyl group or a salt of any of these, storage stability such as gas resistance is improved. More — layers can be improved.
  • the molar fraction of diarylamine is in the range of 0.1 to 0.99, preferably in the range of 0.15 to 0.95, and (meth) acrylamide
  • the molar fraction is in the range of 0.01 to 0.9, preferably in the range of 0.05 to 0.85, and other vinyl monomers which are copolymerizable therewith, Molar fraction of those containing substantially no carboxyl groups Ranges from 0 to 0.3.
  • a salt of a copolymer containing diarylamine as a part of the monomer is also included, and either an inorganic acid salt or an organic acid salt may be used. If diarylamine is used in the form of a salt, a polymer in the form of a salt can be obtained.
  • the cationic compound may be used in the undercoat layer in an amount of preferably from 1 to 100 parts by mass, more preferably from 5 to 50 parts by mass, based on 100 parts by mass of the pigment. If the amount is less than 1 part by mass, not only the desired print density, heat resistance and ozone resistance effect cannot be obtained, but also the water resistance of the print may be impaired. On the contrary, not only the print density is reduced, but also the image may be blurred.
  • the undercoat layer may contain polyalkylene polyamines such as polyethylene polyamine / polypropylene pyrene polyamine used in conventional ink jet recording paper, or derivatives thereof, and tertiary amino groups.
  • polyalkylene polyamines such as polyethylene polyamine / polypropylene pyrene polyamine used in conventional ink jet recording paper, or derivatives thereof, and tertiary amino groups.
  • the weight-average molecular weight of the cationic compound is about tens of thousands or less, it is generally easy to be eluted in water, and the printing water resistance of a printing portion with a large amount of ink such as mixed color black is inferior.
  • cationic compounds having a weight-average molecular weight of 100,000 or more are generally hardly eluted in water and, for example, inhibit ink permeation like polybutyl alcohol and the like, and may reduce ink absorption. There is.
  • the weight average molecular weight of the cationic compound is 100,000 or more, the printing density of colors such as cyan, magenta, and yellow tends to be high, and when the weight average molecular weight is 50,000 or less, the printing density of the black tends to be high. .
  • Pigments in the undercoat layer include kaolin, clay, calcined clay, amorphous silica (also called amorphous silica), zinc oxide, aluminum oxide, aluminum hydroxide, carbonated calcium, sachin white, aluminum silicate, alumina, and colloidal silica.
  • Pigments known in the general coated paper manufacturing field such as plastic pigment, hydrotalcite, urea resin-based plastic pigment, and benzoguanamine-based plastic pigment, can be used alone or in combination.
  • amorphous silica, alumina, and zeolite having high ink absorbability it is preferable to use amorphous silica, alumina, and zeolite having high ink absorbability as main components.
  • the adhesive for the undercoat layer examples include proteins such as casein, soybean protein, and synthetic protein, various starches such as starch and oxidized starch, polybutyl alcohol, cationic polyvinyl alcohol, and silyl-modified polyvinyl alcohol.
  • Polybutyl alcohols, cenorellose derivatives such as carboxymethylcellulose / methinolecellulose, styrene-butadiene copolymer, conjugated gen-based polymer latex of methyl methacrylate-butadiene copolymer, latex of acryl-based polymer
  • Conventionally known adhesives generally used for coated paper, such as a butyl polymer latex such as a butyl acetate copolymer are used alone or in combination.
  • polyvinyl alcohols such as polyvinyl alcohol, cationic polyvinyl alcohol, and silyl-modified polyvinyl alcohol are preferably used to improve the surface strength of the undercoat layer. .
  • the mixing ratio of the pigment and the adhesive in the undercoat layer depends on the type thereof, but is generally 1 to 100 parts by mass, preferably 2 to 50 parts by mass with respect to 100 parts by mass of the pigment. It is adjusted within the range.
  • the undercoat layer paint composed of the above materials is generally adjusted to have a solid content concentration of about 5 to 50% by mass, and has a dry mass of 2 to 100 g Zm 2 , preferably 5 ⁇ 5 0 g Z m 2 approximately, more preferably you applied so that about 5 ⁇ 2 0 g / m 2.
  • the coating amount When the coating amount is small, the ink absorption is poor, and the bleeding of the recorded image or the gloss after coating the cast layer may be reduced. Further, in the case of a paper base material, the amount of ink absorbed by the paper base material increases, so that the paper after recording has a wavy or G), the press marks (spur marks) due to the printer spurs (paper rolls and gears after recording) may be noticeable.
  • the coating amount When the coating amount is large, the ink easily penetrates and is distributed not only on the cast layer side but also on the substrate side, so that the print density may be reduced. In addition, the strength of the undercoat layer may be reduced, and the powder may fall off or the surface may be easily damaged.
  • the coating for the undercoat layer is applied by various well-known coating apparatuses such as a blade coater, an air knife coater, a roll coater, a brush coater, a champlex coater, a no coater, a lip coater 1, a gravure coater, and a curtain coater. It is dried. Further, if necessary, the recording layer may be subjected to a smoothing process such as super calendering or brushing after drying.
  • the cast layer of the present invention comprises an adhesive, a fine pigment having an average secondary particle diameter of 1 ⁇ m or less, and a release agent.
  • the adhesive in the cast layer includes, for example, polyvinyl alcohol, cation-modified polyvinyl alcohol, silyl-modified polyvinyl alcohol, and other polyvinyl alcohol, casein, soy protein, synthetic protein, starch, and the like.
  • Senorelose derivatives such as carboxylmethyl cellulose methinoresenolylose, vinylinole acetate polymer emulsion, styrene-butadiene copolymer emulsion, ethylene acetate butyl copolymer emulsion, acrylyl copolymer emulsion, styrene Acrylic copolymer emulsions, aqueous acryl resins, aqueous polyurethane resins, aqueous polyester resins, and other generally known adhesives in the coated paper field can be used alone or in combination.
  • a styrene-acrylic copolymer emulsion is particularly preferred from the viewpoints of clearness and glossiness of a recorded image.
  • the weight average molecular weight of the emulsion used as an adhesive in the cast layer is preferably from 100,000 to 100,000, and more preferably from 500,000 to 500,000. If the molecular weight is lower than 100,000, the strength of the coating film tends to be insufficient, and if the molecular weight is higher than 100,000, the stability of the emulsion tends to be insufficient.
  • the average particle diameter of the emulsion is preferably in the range of 0.02 to 0.15 ⁇ m. If the average particle size of the emulsion is less than 0.02 ⁇ m, the ink absorbency will decrease.On the other hand, if the average particle size exceeds 0.15 ⁇ , the surface gloss and the sharpness of the color development of the recorded image will decrease. .
  • a copolymer emulsion having a glass transition temperature of the copolymer in the range of 50 to 150 ° C. is preferred.
  • the glass transition point of the copolymer is lower than 50 ° C, the film of the cast layer will advance too much during drying, and the porosity of the surface will decrease, resulting in a decrease in the ink absorption rate. There is. Conversely, if the glass transition point of the copolymer is higher than 150 ° C., film formation may be insufficient during drying, and the gloss may be insufficient. On the other hand, if the drying temperature is too high, the film formation proceeds too much, and the porosity of the surface decreases, so that the ink absorption rate decreases. Conversely, if the drying temperature is too low, gloss tends to decrease.
  • Examples of the fine pigment having an average secondary particle diameter of 1 ⁇ or less in the cast layer include kaolin, clay, calcined clay, amorphous silica (also referred to as amorphous silica), zinc oxide, and oxide.
  • amorphous silica also referred to as amorphous silica
  • Various pigments known and used in the general coated paper manufacturing field such as styrene-based plastic pigments, hydrotalcite, urea resin-based plastic pigments, and benzoguanamine-based plastic pigments, can be used alone or in combination.
  • amorphous silica, alumina, colloidal silica, or zeolite having high ink absorbability is preferable to use as a main component. More preferred is colloidal silica, and even more preferred is anionic colloidal silica.
  • the anionic colloidal silica has an average particle size of 0.01 to 0.15 / im, preferably 0.01 to 0.12 ⁇ m, and more preferably 0.01 to 0.12 ⁇ m. 2 to 0.10 ⁇ m. If the average particle size is less than 0.01 ⁇ m, the ink absorption may decrease.If it exceeds 0.15 ⁇ , gloss and The sharpness of coloring of a recorded image may be reduced.
  • composition ratio (solid content mass ratio) of the adhesive and the fine pigment in the cast layer is preferably
  • It is in the range of 60/40 to 3/97, more preferably in the range of 50/50 to 5/95, and still more preferably in the range of 40/60 to 7/93.
  • the release agent used in the cast layer at least one selected from the group consisting of fatty acids having 12 to 18 carbon atoms and water-soluble salts thereof is preferably used to obtain the effects of the present invention.
  • the number of carbon atoms is 19 or more, the dispersibility may be poor, and when the number of carbon atoms is less than 12, the releasability may not be sufficient.
  • fatty acids having 12 to 18 carbon atoms include lauric acid (12 carbon atoms), myristic acid (13 carbon atoms), palmitic acid (15 carbon atoms), stearic acid (18 carbon atoms) ), Oleic acid (18 carbon atoms), linoleic acid (18 carbon atoms), linolenic acid (18 carbon atoms), arachidonic acid (18 carbon atoms), and the like.
  • Examples thereof include a sodium salt, a potassium salt, and an ammonium salt of the fatty acid.
  • stearic acid or a water-soluble salt thereof stearic acid or a water-soluble salt thereof
  • oleic acid or a water-soluble salt thereof are preferable in terms of heat resistance and releasability of recording paper, and among these, stearic acid and oleic acid are further preferable.
  • Ammonium stearate, and ammonium oleate are particularly excellent.
  • the reason why the heat resistance and the release property are good is that the release agent is not easily oxidized in terms of the chemical structure, and the release property from the mirror drum is good. Further, in addition to the release agent, it is possible to use a release agent used in the production of ordinary coated paper for printing or cast paper for printing as long as the effects of the present invention are not impaired. .
  • the release agent is used in an amount of 0.1 to 10 parts by mass with respect to 100 parts by mass of the fine pigment. Preferably, 0.2 to 8 parts by mass is added. If the addition amount is less than 0.1 part by mass, continuous operability may be poor. If the addition amount exceeds 10 parts by mass, the print density may be reduced and the image quality may be reduced.
  • the image storability is improved.
  • the organic compound containing thioether include thioether compounds, thiourea compounds, disulfide compounds, mercapto compounds, sulfin oxide compounds, thiosulfonic acid compounds, and thiosulfinic acid compounds.
  • thioether compounds are preferable, and in particular, the inclusion of 1,2-bis (2-hydroxyxethylthio) ethane or 1,4-bis (2-hydroxyxethylthio) butane makes the image resistant to ozone. Cast ink jet recording paper with improved performance can be obtained.
  • the content of cast Inkjet recording during paper compound 0. 1 ⁇ 4 g / m 2 approximately, preferably 0. 2 ⁇ 2 g Z m 2 approximately.
  • the compound exhibits an effect when contained in either the undercoat layer or the cast layer.
  • the coating liquid for the cast layer contains an antifoaming agent, a coloring agent, and a defoaming agent used for general printing coated paper and ink jet recording paper in order to adjust whiteness, viscosity, fluidity, and the like.
  • Various auxiliaries such as a fluorescent whitening agent, an antistatic agent, a preservative and a dispersant, and a thickener are appropriately added. It is also possible to add a cationic compound to impart ink dye fixability.
  • the method of providing a cast layer in the present invention includes the steps of forming a coating liquid layer for a cast layer by using a mirror-finished drum (a drum of mirror-finished metal, plastic, glass, or the like), a mirror-finished metal plate, a plastic sheet, or the like. Dry on film, glass plate, etc. And transferring the smooth surface onto the coating layer, and obtaining a smooth and glossy cast coating layer surface by this method.
  • a mirror-finished drum a drum of mirror-finished metal, plastic, glass, or the like
  • a mirror-finished metal plate a plastic sheet, or the like. Dry on film, glass plate, etc.
  • transferring the smooth surface onto the coating layer and obtaining a smooth and glossy cast coating layer surface by this method.
  • the above-mentioned coating solution for a cast layer is applied on an undercoat layer, and the coated layer is pressed against a heated mirror-surface drum while the coating layer is in a wet state, and dried.
  • the method include a finishing method (wet casting method) and a method of once drying, re-wetting, pressing against a heated mirror drum, drying and finishing (rewet casting method), and the like.
  • a method in which the coating liquid for the cast layer is applied directly to the heated mirror-surface drum, followed by pressing and drying the undercoat layer surface of the base material provided with the undercoat layer should also be adopted. Can be.
  • the preferred range of the temperature of the heated mirror drum is 50 to 150 ° C, more preferably 70 to 120 ° C.
  • various known coating apparatuses such as a blade coater, an air knife coater, a rhono recorder, a brush coater, a chaplex coater, a bar coater, and a Daravia coater can be used.
  • the coating amount of the cast layer is preferably 1 ⁇ 3 0 g Z m 2 by dry weight, more preferably rather is 2 ⁇ 2 0 g / m 2, more preferably, 3 ⁇ 1 5 g Zm 2 .
  • it is less than 1 g Z m 2, may print density and gloss is not sufficient, 3 0 when g / m 2 a exceeds effect is saturated and workability load is imposed on the drying may be reduced .
  • a smoothing process can be further performed by using a super calender or the like. At this time, the calender can be heated.
  • ⁇ 5 ° surface gloss (JIS-Z8741) of the recording surface of the cast inkjet recording paper is preferably 50 to obtain excellent image quality and high-quality photographic recording. % Or more, more preferably 60% or more.
  • Amorphous silica as pigment (trade name: Fine Seal X-45, average primary particle diameter: 10 nm, average secondary particle diameter: 4.5 ⁇ m), 50 parts, Zeolite (manufactured by Tosoh Corporation) , Trade name: Toyobuilder, average particle size 1.5 ⁇ m) 50 parts, Silicone-modified polybutyl alcohol (Kuraray Co., trade name: PVA R-11 30) as adhesive 30 parts, as cationic compound 25 parts of diarylamine hydrochloride / acrylamide copolymer resin (Sumitomo Chemical Co., Ltd., trade name: Sumireze Resin 100 ⁇ ), 0.5 part of sodium polyphosphate as a dispersant, and a solid content concentration of 18 parts % Of a coating solution for an undercoat layer was prepared.
  • a coating liquid for a cast layer having a solid content concentration of 30% was prepared, comprising 5 parts of an alkyl bier ether / maleic acid derivative resin and 3 parts of a stearic acid aqueous dispersion (solid content ratio) as a release agent.
  • This coating solution for a cast layer is applied onto the above-mentioned undercoat layer using a roll coater, immediately pressed against a mirror drum having a surface temperature of 80 ° C, dried, released, and then cast. Inkjet recording paper was obtained.
  • the coating amount of the cast layer at this time was 12 g / m 2 in terms of solid content mass.
  • a cast ink jet recording paper was obtained in the same manner as in Example 1, except that 3 parts of aqueous stearic acid dispersion was added as a release agent in place of 3 parts of aqueous stearic acid.
  • 3 parts of aqueous stearic acid dispersion was added as a release agent in place of 3 parts of aqueous stearic acid.
  • a cast ink jet recording paper was obtained in the same manner as in Example 1, except that 3 parts of ammonium oleate was added as the release agent instead of 3 parts of the aqueous dispersion of stearic acid as a release agent. .
  • Example 4 A cast ink jet recording paper was obtained in the same manner as in Example 1 except that 50 parts of the cationic compound 25 was changed to 50 parts.
  • a cast ink jet recording paper was obtained in the same manner as in Example 1, except that 5 parts of the cationic compound 25 was changed to 5 parts.
  • a cast ink jet recording paper was obtained in the same manner as in Example 1, except that 80 parts of the following fine silica was used in place of the anionic colloidal silica as the fine pigment of the cast layer.
  • An aqueous silica dispersion having an average secondary particle diameter of 4.5 ⁇ (available from Tokuyama Corporation, trade name: Fine Seal X-45, average primary particle diameter 10 nm) was mixed with a pressure homogenizer (SMT). The pulverization treatment was repeated with a pressurized condition of 200 kg / m 2 using an ultra-high pressure homogenizer (GM-1 type, manufactured by the company) to obtain fine silica having an average secondary particle diameter of 0.8 ⁇ .
  • SMT pressure homogenizer
  • a cast ink jet recording paper was obtained in the same manner as in Example 1, except that 10 parts of 1,2-bis (2-hydroxyxethylthio) ethane was added to the coating liquid for the undercoat layer.
  • 10 parts of 1,2-bis (2-hydroxyxethylthio) ethane was added to the coating liquid for the undercoat layer.
  • Example 1 dicyandiamide-based resin (manufactured by Nikka Chemical Co., trade name: Neofix E-117) was used in place of 5 parts of diarylamine hydrochloride / acrylamide copolymer resin as the cationic compound.
  • a cast ink jet recording paper was obtained in the same manner as in Example 1 except that five copies were used.
  • a cast ink jet recording paper was obtained in the same manner as in Example 1 except that 3 parts of an aqueous dispersion of lecithin was used instead of 3 parts of an aqueous dispersion of stearic acid as a release agent.
  • a cast was prepared in the same manner as in Example 1 except that 3 parts of an aqueous dispersion of arachidic acid (C 2 ) was used as a release agent instead of 3 parts of an aqueous dispersion of stearic acid. Inkjet recording paper was obtained.
  • Example 1 a cast ink was prepared in the same manner as in Example 1, except that 3 parts of an aqueous dispersion of undecylic acid (Cu) was used as a release agent instead of 3 parts of an aqueous dispersion of stearic acid. A recording paper was obtained.
  • Cu undecylic acid
  • the cast ink jet recording paper obtained in the examples and comparative examples was printed using an Epson inkjet printer PM-800C, and the evaluation results are shown in Table 1.
  • the printing density of the black solid printing portion 24 hours after printing was measured using a Macbeth densitometer (trade name: RD_914) manufactured by Macbeth.
  • the ink absorbency was evaluated visually from the boundary of the mixed color black (80%) printed portion. :: The boundary is clear and there is no bleeding.
  • the cast ink jet recording paper prepared in each example and each comparative example was stored in a thermostat at 80 ° C. for 7 days without printing, and the degree of yellowing of the recording paper was visually evaluated. Evaluation criteria :
  • Ozone resistance which has a high correlation with long-term storage, was evaluated.
  • Solid printing of mixed black and cyan ink with one color mixture of cyan, magenta and yellow, and ISO-4 The printed image of 0 was left in a container having an ozone concentration of 10 ppm for 12 hours.
  • the print density after the test was measured.
  • the degree of discoloration was visually observed and evaluated.
  • ⁇ The mirror surface drum is stained, and the glossiness of the recording paper is reduced, which causes a practical problem.
  • the glossiness of the obtained cast ink jet recording paper was measured using a gloss meter (trade name: GM-26D, manufactured by Murakami Color Research Laboratory Co., Ltd.) described in JIS-Z8741.
  • the outline of JIS-Z8741 is as follows. A non-polarizing light source was used. A light beam with a specified opening angle was incident on the sample surface at a specified incident angle, and a light beam with a specified opening angle reflected in a mirror-reflecting direction was measured by a light receiver. The optical axes of the incident side and the light receiving side intersect at the sample surface.
  • the unit of gloss is based on the specular gloss at the specified incident angle ⁇ on the glass surface whose refractive index is a constant value of 1.567 over the entire visible wavelength range. Expressed as%. table 1
  • the cast ink jet recording paper of the present invention has a high image print density and high ink absorbency. It is not only good, but also excellent in heat resistance and ozone resistance, excellent in continuous operation, and high in glossy cast ink jet recording paper. It is extremely practical.

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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Ink Jet Recording Methods And Recording Media Thereof (AREA)

Abstract

L'invention concerne un papier d'enregistrement pour jet d'encre coulé, tel que le brillant de la partie de papier blanc et de la partie d'impression, dans laquelle une image d'enregistrement est formée avec une encre aqueuse, est excellent, que la densité de l'image imprimée en couleur pure est élevée, que la résistance à la chaleur et la résistance à l'ozone sont excellentes, et que la vitesse de fonctionnement continue est élevée. Une sous-couche est formée sur une base. Cette sous-couche contient un pigment, un copolymère de diallyle amine, du (méth)acryle amide, un copolymère de diallyle amine, du (méth)acryle amide, et un monomère de vinyle copolymérisable avec ceux-ci et ne contenant sensiblement pas de groupe carboxyle, un composé cationique qui est au moins d'un type sélectionné dans le groupe comportant des sels de ceux-ci, et un adhésif. Une couche coulée est formée sur la sous-couche. La couche coulée contient un adhésif, un pigment fin dont le diamètre particulaire secondaire moyen est inférieur à 1 νm, et un agent de libération qui est au moins d'un type sélectionné dans le groupe comprenant : des acides gras présentant de 12 à 18 atomes de carbone et leurs sels solubles dans l'eau.
PCT/JP2003/006685 2003-05-28 2003-05-28 Papier d'enregistrement pour jet d'encre coule WO2004106080A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PCT/JP2003/006685 WO2004106080A1 (fr) 2003-05-28 2003-05-28 Papier d'enregistrement pour jet d'encre coule
CN03826535.4A CN1771134A (zh) 2003-05-28 2003-05-28 抛光喷墨记录用纸
AU2003241838A AU2003241838A1 (en) 2003-05-28 2003-05-28 Cast ink-jet recording paper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2003/006685 WO2004106080A1 (fr) 2003-05-28 2003-05-28 Papier d'enregistrement pour jet d'encre coule

Publications (1)

Publication Number Publication Date
WO2004106080A1 true WO2004106080A1 (fr) 2004-12-09

Family

ID=33485776

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2003/006685 WO2004106080A1 (fr) 2003-05-28 2003-05-28 Papier d'enregistrement pour jet d'encre coule

Country Status (3)

Country Link
CN (1) CN1771134A (fr)
AU (1) AU2003241838A1 (fr)
WO (1) WO2004106080A1 (fr)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08150773A (ja) * 1994-11-28 1996-06-11 Mitsubishi Paper Mills Ltd インクジェット記録シート
US5576088A (en) * 1994-05-19 1996-11-19 Mitsubishi Paper Mills Limited Ink jet recording sheet and process for its production
JP2000263923A (ja) * 1999-03-17 2000-09-26 Mitsubishi Paper Mills Ltd インクジェット記録シート
EP1195259A2 (fr) * 2000-10-05 2002-04-10 Oji Paper Co., Ltd. Feuille pour l'enregistrement par jet d'encre
WO2002072360A1 (fr) * 2001-03-14 2002-09-19 Mitsubishi Paper Mills Limited Feuilles pour impression à jet d'encre
JP2002293006A (ja) * 2001-03-29 2002-10-09 Mitsubishi Paper Mills Ltd インクジェット記録シートの製造方法
JP2003080840A (ja) * 2001-06-26 2003-03-19 Oji Paper Co Ltd インクジェット記録用シート
JP2003103909A (ja) * 2001-09-28 2003-04-09 Mitsubishi Paper Mills Ltd インクジェット記録シート
JP2003165268A (ja) * 2001-11-30 2003-06-10 Oji Paper Co Ltd キャストインクジェット記録用紙

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5576088A (en) * 1994-05-19 1996-11-19 Mitsubishi Paper Mills Limited Ink jet recording sheet and process for its production
JPH08150773A (ja) * 1994-11-28 1996-06-11 Mitsubishi Paper Mills Ltd インクジェット記録シート
JP2000263923A (ja) * 1999-03-17 2000-09-26 Mitsubishi Paper Mills Ltd インクジェット記録シート
EP1195259A2 (fr) * 2000-10-05 2002-04-10 Oji Paper Co., Ltd. Feuille pour l'enregistrement par jet d'encre
WO2002072360A1 (fr) * 2001-03-14 2002-09-19 Mitsubishi Paper Mills Limited Feuilles pour impression à jet d'encre
JP2002293006A (ja) * 2001-03-29 2002-10-09 Mitsubishi Paper Mills Ltd インクジェット記録シートの製造方法
JP2003080840A (ja) * 2001-06-26 2003-03-19 Oji Paper Co Ltd インクジェット記録用シート
JP2003103909A (ja) * 2001-09-28 2003-04-09 Mitsubishi Paper Mills Ltd インクジェット記録シート
JP2003165268A (ja) * 2001-11-30 2003-06-10 Oji Paper Co Ltd キャストインクジェット記録用紙

Also Published As

Publication number Publication date
CN1771134A (zh) 2006-05-10
AU2003241838A1 (en) 2005-01-21

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