EP0387893B1 - Papier d'enregistrement par jet d'encre - Google Patents

Papier d'enregistrement par jet d'encre Download PDF

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Publication number
EP0387893B1
EP0387893B1 EP19900104997 EP90104997A EP0387893B1 EP 0387893 B1 EP0387893 B1 EP 0387893B1 EP 19900104997 EP19900104997 EP 19900104997 EP 90104997 A EP90104997 A EP 90104997A EP 0387893 B1 EP0387893 B1 EP 0387893B1
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EP
European Patent Office
Prior art keywords
ink
layer
base layer
penetration
recording sheet
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
EP19900104997
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German (de)
English (en)
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EP0387893A1 (fr
Inventor
Yutaka Central Research Laboratory Kojima
Takashi Central Research Laboratory Omori
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Nippon Paper Industries Co Ltd
Original Assignee
Nippon Paper Industries Co Ltd
Jujo Paper Co Ltd
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Publication of EP0387893A1 publication Critical patent/EP0387893A1/fr
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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/80—Paper comprising more than one coating
    • D21H19/84—Paper comprising more than one coating on both sides of the substrate
    • 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
    • B41M5/504—Backcoats
    • 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
    • B41M5/508—Supports

Definitions

  • the present invention relates to a recording sheet for an ink jet printer (hereinafter referred to as an ink jet recording paper).
  • ink jet recording papers are mainly divided into two groups.
  • One group is the simple ink jet recording paper, which consists of only cellulosic fibers and a filler exist so that the inks can be absorbed in the space between the fibers or in the spaces formed between the fibers and filler.
  • the other group are the coated ink jet recording papers which are composed of paper, a substrate and coating materials consisting of pigment and binder so that the inks can be absorbed in fine voids of the coated layer.
  • the coated recording papers are distinguished by a low spread or a slight bleeding and a circular shape of the color point and by a high resolving power, their ink absorption capacity is poor and the ink absorption speed is slow. As a result, these papers have the disadvantage that they are unsuitable for multi-color printing with large amounts of printing ink and are too expensive.
  • ink jet recording papers can be used for rapid printing due to the improved ink absorption due to the use of an uncoated paper with a fine powder as a filler.
  • sheets of this type consisting only of a so-called ink-receiving "layer”
  • ink-receiving "layer” are multicolored with a large amount of ink, the ink spreads laterally and the ink dots become feathery and large, so that the resolution is reduced. Since the ink also penetrates deep into the paper, the optical density is reduced with the Increase in light scatter on the top layer of the recording paper.
  • these sheets have the disadvantage that ink causes a print-through, that is, show-through and strike-through in the recorded areas.
  • This trend is directed to regulating the spreading of the inks on the paper by reducing the ink absorption to a certain extent by weak or slight gluing.
  • JP-OS 60-27588 a wet strength agent is added to the sheet and then a small amount of coating color is applied to the sheet, the Stöckigt size of the sheet obtained being regulated to less than 30 seconds.
  • JP-OS 61-50795 a recording paper is made by sizing with a petrochemical sizing agent of the emulsified resin type.
  • JP-OS 63-118287 The third trend is disclosed, for example, in JP-OS 63-118287.
  • This basic method consists of a two-layer ink jet recording sheet (without a coating layer) consisting of a first base layer rich in pulp fibers and a second layer rich in fillers and pulp fibers for the improvement of the recording density.
  • this recording sheet has the disadvantages that in multi-color printing with color inks, the ink penetrates deeply into the first layer which has not been subjected to an ink penetration prevention treatment and that the printing of the inks is not improved.
  • the invention has for its object to provide a recording sheet for inkjet printers, which provides uniform images, has an excellent optical density and good absorbency for the ink, is well suited for multicolor recordings or multicolor printing, and that the printing through decreased.
  • an ink-receiving layer (A layer) is placed on one side of a base layer (B layer), which consists of a one- or two-layer sheet, in that on the other side of the base layer an ink penetration preventing Layer is applied by means of a brushing or impregnation process, and that the base layer may contain a sizing agent and / or cationic polymer.
  • FIGS. 1-4 The typical structure according to the invention is shown in FIGS. 1-4 where A denotes an ink-receiving layer, B a base layer, 2 a treatment agent layer, 3 an ink penetration-preventing layer, 4 a thin coating layer for image enhancement as part of the ink-receiving layer, and 1 an ink jet recording sheet according to the invention.
  • Fig. 1 shows an ink jet recording sheet (1) in which an ink-receiving layer (A layer) is applied to one side of the base layer (B layer) and an ink penetration-preventing layer (3) with the other side of the base layer Is applied by means of a coating process.
  • the ink penetration is prevented by penetrating the ink penetration preventing agent into part of the base layer or the whole base layer, or the ink penetration is prevented without penetration of an ink penetration agent into the base layer in the boundary area between the ink penetration prevention layer (3) and the base layer (B) .
  • Fig. 2 shows an ink jet recording sheet (1) in which one side of a base layer (B) containing a sizing agent and / or cationic polymer as one Treatment agent layer (2) is coated with an ink-receiving layer (A) and the other side of this base layer (B) is coated with a layer (3) to prevent ink penetration.
  • the sizing agent and cationic polymer are used to: 1. Provide proper control of ink penetration from the surface of the ink-receiving layer in ink jet recording, and 2.
  • the starting materials for the two layers are each prepared beforehand and a multilayer sheet is produced therefrom using paper making machines such as "cylinder type", “suction former”, “ultra former” etc. or paper making machines of the type “on-top twin former” such as Arcu former (manufactured by Tampella AB, OY), “ultra Twin former (manufactured by Kabushiki Kaisha Kobayashi Seisakusho), Alladin former (manufactured by Sanki Tekko Kabushiki Kaisha) etc.
  • paper making machines such as "cylinder type", “suction former”, “ultra former” etc. or paper making machines of the type “on-top twin former” such as Arcu former (manufactured by Tampella AB, OY), “ultra Twin former (manufactured by Kabushiki Kaisha Kobayashi Seisakusho), Alladin former (manufactured by Sanki Tekko Kabushiki Kaisha) etc.
  • the ink jet recording sheet of the present invention is manufactured by applying an ink-receiving layer on one side of a base layer using these papermaking machines, then applying an ink penetration prevention layer on the other side of the base layer by means of a coating or impregnation method, and optionally a sizing agent and / or or cationic polymer is added to the base layer. According to the present invention, there is obtained a superior ink jet recording sheet without printing the ink.
  • the first function of the base layer (B) and the ink penetration prevention layer (3) is to reduce the translucency observed from the back of the ink jet recording sheet. Your second function is to prevent the Ink penetration, that is, the strike-through, in which the ink reaches the back of the ink jet recording sheet.
  • the opacity and the degree of sizing are important factors in the base layer. Exactly stated, the opacity should preferably be 75% and more, measured according to JIS-P-8138, and the degree of sizing, measured as Stöckigt sizing degree, should preferably be 3 seconds and more, provided that its base layer is 60 g / m 2 , according to JIS-P-8122. When the opacity is 75% or more, when viewed from the back of the ink jet recording sheet, the show-through of inks less passed through the ink-receiving layer and reached the base layer.
  • the degree of sizing should preferably be in the range of the so-called weak degree of sizing (3 - 50 seconds), although it should be 3 seconds and more.
  • the back of the base layer B of the invention is coated with an ink penetration preventing agent. Therefore an inside sizing agent is not always required.
  • an ink-receiving layer (A layer ) is placed, and then the other side of the base layer is coated with a layer preventing ink penetration.
  • sizing agent in acid medium such as reinforced rosin sizing agent, petroleum sizing agent, emulsion type rosin sizing agent, alkenyl succinic acid type synthetic sizing agent
  • Sizing agents in basic medium such as alkyl ketene dimers
  • Reaction sizing agents such as alkenyl succinic anhydride
  • cationic sizing agent of the self-fixing type In addition to the usual sizing agents above, cationic polymers can be used. It is desirable to add a small amount of sizing agent, preferably 0.01-2.5 parts sizing agent, based on 100 parts pulp fiber of the base layer.
  • cationic polymers are polyethyleneimine, polydimethyldiallylammonium chloride, polyalkylene-polyamine dicyandiamidammonium condensate, polyvinylpyridinium halide, poly (meth) acrylalkyl quaternary salts, poly (meth) acrylamide alkyl quaternary salts, polyvinylbenzyltrimethylammonium salt (polymethylammonium) and ( ⁇ -methylammonyl salt)
  • cationic sizing agents and cationic resins are particularly preferred for the invention, with the ink penetration preventing agent for coating after the formation of the multilayer sheet is preferably an anionic sizing agent or an anionic coating composition.
  • the cationic sizing agent or cationic resin acts as an ink scavenger and, in combination with an anionic coating composition, forms a surface which prevents ink penetration because it becomes insoluble through a reaction with the anionic coating. Therefore, the recording sheet of the present invention has the advantages that when printing using a large amount of the ink, etc., the ink absorbency and the through-printing are improved.
  • the ink penetration preventing agent according to the invention are so-called surface sizing agents, and the materials which have a low affinity for the aqueous ink or hydrophobic properties, ie prevent penetration of the aqueous ink, and their coating material.
  • the surface sizing agents are sizing agents in acidic medium such as reinforced rosin sizing, petroleum resin sizing, emulsion type rosin sizing agents and synthetic sizing agents of the alkenylsuccinic acid type, reactive sizing agents in a neutral medium such as alkyl ketene dimer, alkenylsuccinic anhydride; cationic self-fixing type resin sizing agents; anionic or cationic acrylamides; Wax emulsions; Silicon materials, etc.
  • These surface sizing agents can be applied with water-soluble resins such as starch, polyvinyl alcohol, etc.
  • the viscosity of the coating composition is usually set to 5-2000 cp.
  • the quantity ratio of the materials and the amount of coating are chosen so that the entire recording sheet has a Stöckigt sizing degree of at least 3, and it can easily be determined by means of experiments.
  • some ink penetration preventing agents may be applied to the back of the base layer which is not in contact with the ink-receiving layer to form an ink penetration-preventing layer, as shown in Figure 1.
  • a resin emulsion with a high film-forming ability such as SBR latex, ethylene vinyl acetate latex, Acrylic latex etc. applied to the base layer.
  • fillers are preferably added to the ink penetration-preventing layer for the purpose of improving the hiding power against the printing-through.
  • these fillers are white fine pigments such as titanium dioxide, calcium carbonate, kaolin, etc.
  • the sizing agents for the above-mentioned conventional papers can be added to the ink penetration prevention layer.
  • any of the following dispersants may be added: anionic dispersants such as sodium polyacrylate, ammonium polyacrylate, sodium pyrophosphate, etc., cationic dispersants such as cationic polyvinyl alcohol, polyaminoamido fatty acid compounds, low molecular weight cationic galactomannan, etc.
  • the amount of the coating composition is preferably about 3 - 20 g / m2, and more preferably 5 - 15 g / m2.
  • the mixing ratio of the raw materials for the coating composition should be chosen so that the Recording sheet has a Stöckigt sizing degree of at least 3 seconds.
  • the process for coating the sheet with the ink penetration preventing agent can be carried out using a size press, a roller stripper, a smoothing scraper, a bar stripper, an atomizer, etc.
  • the base layer according to the invention comprises pulp, filler, paper sizing agents, retention aids and other aids.
  • the pulp mainly comprises plant pulps such as wood pulp and linter pulp, as well as recovered pulp from waste paper. It can optionally contain inorganic fibers such as glass fibers or synthetic paper materials.
  • the fillers added to the base layer are calcium carbonate, clay, activated clay, talc, synthetic silica, aluminum hydroxide, diatomaceous earth, barium sulfate, titanium dioxide, organic resinous pigments and others, all of which are commonly used in papermaking or paper processing.
  • the fillers are produced in numerous different types; the invention is not limited to the use of a particular variety. Furthermore, if necessary, mixtures of several or different fillers or mixtures of different types of the same filler can be used.
  • fillers such as titanium dioxide and calcium carbonate, which have a high refractive index and can easily be divided very finely, are preferred; finely powdered, precipitated calcium carbonate is most preferred in terms of availability and economy.
  • the ink-receiving layer must have good ink absorbency sufficient to retain much ink from multicolor records. In addition, it must have good color reproducibility and provide uniform images and increased optical density. Therefore, the ink-receiving layer should be made of a material with good affinity for inks, and it should be a porous layer with a uniform thickness and high transparency, as described below. If the ink-receiving layer has no affinity for the solvents of the inks, not only will the ink not be absorbed, but it will also be delayed in drying, causing the ink to flow out or easily damage abrasion of recorded images that this type of coating is unsuitable for multi-color recording using a lot of ink.
  • any material of the (side) ink-receiving layer has little affinity for inks, the inks will not be fixed in the material, whereby some areas in the ink dots or ink spots will not be colored, with the result that uniform images cannot be formed.
  • the addition of more than a certain amount of a sizing agent to the ink-receiving layer tends to deteriorate the penetration and drying and drying of water as a solvent, thereby reducing the target this invention cannot be fully achieved.
  • the inks are made in accordance with the principle of color subtraction, it is believed that the less the light scatter in the color receiving layer, i.e. the more transparent the ink-receptive layer, the better the reproducibility of the printing ink, the clearer the appearance of the images.
  • the ink-receiving layer comprises pulp, fillers, retention aids and auxiliaries, such as water-soluble resins and others, which regulate the paper properties or the productivity.
  • the pulp in the ink-receiving layer includes wood pulp, linter pulp and recovered pulp from waste paper. Unlike the base layer, such pulps or fibers that have no affinity with the solvents for the inks cannot be used for the ink-receiving layer. As a result, glass fibers or synthetic pulp, which may be mixed in the base layer, should not be mixed in the ink-receiving layer.
  • the same type of fillers as used for the base layer can be used for the ink-receiving layer. When choosing from these fillers, care must be taken that the Ink absorbability is increased and the light scattering of the ink-receiving layer is reduced.
  • fillers should not necessarily be used. However, it is more desirable to use calcium carbonate ground to medium or smaller particle size to increase ink absorbency and control the spread and shape of the color dots to achieve clear images, high image density, and high resolution.
  • transparency refers to the extent to which light incident on the ink-receiving layer is scattered by this layer. In this sense, the more incident light is scattered in the ink-receiving layer, the lower the transparency of the layer, whereby the recorded images take on a whitish appearance.
  • the transparency can be reproduced or stated as a specific light scattering coefficient (S) of the Kubelka-Munk equation, which indicates the degree of light scattering.
  • S specific light scattering coefficient
  • the specific light scattering coefficient for wood pulp is 200 to 700 cm2 / g, for synthetic pulp 900 to 1300 cm2 / g and for fillers 600 to 1000 cm2 / g, each as an average.
  • S fluctuate depending on the type of substances or materials used in the treatment process and / or the particle size of the material. As a result, some of the above materials sometimes give larger values for the coefficient than the mean.
  • the value (S) decreases as the pulp grind increases. Therefore, in order to produce more vivid images by reducing light scatter in the ink-receiving layer, it is desirable to use pulverized pulp. However, if the degree of grinding is too high, the voids for absorbing the inks decrease, and the result is a reduced ink absorbability of the ink-receiving layer. From this point of view, excessive grinding is undesirable.
  • the water-soluble resins which are used according to the invention include starch, cationic starch, polyvinyl alcohol, cellulose derivatives such as hydroxyethyl cellulose and carboxymethyl cellulose, polyacrylamide, polyamide epichlorohydrin resin, polyvinyl pyridine, Polyethylene oxide, polyvinylpyrrolidone, casein, gelatin, sodium alginate, sodium polystyrene sulfonate, sodium polyacrylate, hydrolysis products of starch-acrylonitrile graft polymer, sulfonated chitin, carboxylated chitin, chitosan, their derivatives, polyethyleneimine, polydimethyl-polyethylenediammonidyllidiumalkidyll , Poly (meth) alkyl acrylate quaternary ammonium salts, poly (meth) acrylamide alkyl quaternary ammonium salts, ⁇ -chloropoly (oxyethylene-polymethylene trialkyl am
  • a thin coating layer by applying or impregnating the ink-receiving layer with fine filler in a small amount in order to obtain clearer images and higher density.
  • Synthetic silica, alumina, aluminum hydroxide and silicates are desirable for this purpose and among them silicates are the most suitable.
  • the ink ejected from a printer Has reached the surface of the ink-receiving layer, the ink is quickly absorbed and penetrates into the layer due to its good affinity for ink solvents and dyes and its high porosity.
  • the ink that has passed through the ink-receiving layer reaches the surface of the base layer. Since the base layer is sized or the back of the base layer is treated with an ink penetration preventing agent, further penetration of the ink on the surface of the base layer or on the surface containing the ink penetration preventing agent is prevented. For these reasons, the optical density of the ink jet recording sheet is improved, and the printing and curling due to the absorption of the inks are prevented.
  • the strike-through can be improved by increasing the opacity of the base layer to more than a certain height, and thereby the printing-through can be further improved .
  • the spread and penetration of the ink in one Recording sheets are proportional to the amount of ink in a unit area, but they depend on the size and depth of the spaces.
  • the size of the ink dot and its degree of penetration are controlled: by the combination of two different materials, ie the combination of an ink-receiving layer and a base layer, or by the presence of an ink-trapping agent (ink retention agent) and / or an agent which prevents ink penetration, or by the Coating a base layer with an ink penetration preventing agent. Therefore, the printing can be prevented effectively.
  • the recording sheet of Example 1 has a structure as shown in FIG. 1
  • a mixed paper stock of 80 parts LBKP (bleached hardwood sulfate pulp) with 350 ml CSF (Canadian Standard Freeness) and 20 parts NBKP (bleached coniferous sulfate pulp) with 450 ml CSF was used as a paper stock for a base layer.
  • filler precipitated calcium carbonate from the calcite group, spindle shape, 50% average particle size: 4.1 ⁇ m, BET-specific surface: 5 m2 / g
  • retention aid M cationic polyacrylamide, viscosity: 590 cps at 0 , 5% consistency
  • a mixture of 100 parts LBKP (350 ml CSF), 10 parts filler (precipitated calcium carbonate from the calcite group, amorphous type, 50% average particle size: 4.6 ⁇ m, BET specific surface area: 3.4 m 2 / g) and 0.02 part retention aid M (cationic polyacrylamide, viscosity: 590 cps at 0.5% consistency) was used to prepare a slurry for the ink-receiving layer.
  • a base layer of 45 g / m2 basis weight and an ink-receiving layer of 30 g / m2 basis weight were individually prepared using the base layer slurry and the slurry for the ink-receiving layer.
  • the the ink-receiving layer was wet-laid on the base layer, and a two-layer ink jet recording paper of 75 g / m2 basis weight was formed using a cylinder Fourdrinier multi-layer paper machine.
  • An ink penetration preventing layer 3 was applied to the surface of the base layer B which is not in contact with the ink receiving layer.
  • the coating composition of the ink penetration preventing layer was prepared by mixing 10 parts of titanium dioxide (anatase type, specific gravity: 3.9, 50% average particle size: 0.3 ⁇ m) with a dispersant and 50 parts of SBR latex and the resultant Mix with water diluted to 35% consistency.
  • the coating composition was applied in a coating amount of 10 g / m2 (as a solid) to the base layer using a Meyer stick.
  • a recording sheet 1 of Example 1 was obtained.
  • the recording sheet of Example 2 has a structure according to Figure 1.
  • a mixed paper stock of 80 parts LBKP (350 ml CSF) and 20 parts NBKP (450 ml CSF) was used as a base layer B paper.
  • 20 parts of filler kaolin, kaolinite group, spherical aggregates, 50% mean character size: 0.1 ⁇ m, specific weight: 2.2
  • 0.3 part of wet strength aid polyamide epichlorohydrin resin
  • aluminum sulfate 1.5 parts
  • LBKP 350 ml of CSF
  • aluminum sulfate 1.5 parts of aluminum sulfate were mixed to prepare a slurry for the ink-receiving layer.
  • a two-ply ink jet recording paper of 90 g / m2 basis weight (consisting of a base layer of 60 g / m2 basis weight and an ink-receiving layer of 30 g / m2 basis weight) was formed using a cylinder Fourdrinier multilayer production machine.
  • An ink penetration preventing layer 3 was applied to the surface of the base layer B which is not in contact with the ink receiving layer.
  • the coating composition for the ink penetration prevention layer was prepared by adding 20 parts of a surfactant (anionic styrene-acrylic acid copolymer, Hama-coat S700, manufactured by Misawa-ceramic Chemical Co.) and 80 parts of an oxidized starch are mixed.
  • the coating composition (9% consistency) was applied to a base layer using a size press system.
  • a recording sheet 1 of Example 2 was obtained, and this ink penetration preventing agent penetrates somewhat into the base layer to prevent ink penetration.
  • the recording sheet of Example 3 has a structure as shown in FIG. 2.
  • a mixed paper stock of 80 parts LBKP (350 ml CSF) and 20 parts NBKP (450 ml CSF) was used as a base layer paper stock.
  • 20 parts filler precipitated calcium carbonate from the calcite group, spindle shape, 50% average particle size: 4.1 ⁇ m, BET-specific surface: 5 m2 / g
  • 0.05 part paper sizing agent alkyl ketene dimer, cationic, pH: 3.0, Viscosity: 30 cps
  • 0.3 part wet strength aid polyamide epichlorohydrin
  • 0.02 part retention aid M were added to the blended stock to make a base layer slurry to manufacture.
  • LBKP 350 ml of CSF
  • filler precipitated calcium carbonate from the calcite group, amorphous type, 50% average particle size: 4.1 ⁇ m, BET-specific surface area: 3.4 m 2 / g
  • wet strength agent polyamide epichlorohydrin
  • retention aid M 0.02 part of retention aid M mixed to make a slurry for the ink-receptive layer.
  • a base layer of 45 g / m2 basis weight and an ink-absorbing layer of 35 g / m2 basis weight are prepared individually.
  • the ink-receiving layer was wet-laid on the base layer, and a two-layer ink jet recording paper of 80 g / m2 basis weight was formed using a cylinder Fourdrinier multi-layer paper machine.
  • An ink penetration preventing layer 3 was placed on a surface of the base layer B which is not in contact with the ink receiving layer.
  • the coating composition for the ink penetration prevention layer was prepared by mixing 100 parts of titanium dioxide (anatase type, specific weight: 3.9, 50% average particle size: 0.3 ⁇ m) with a dispersant and 50 parts of SBR latex, and the mixture diluted to 35% consistency with water.
  • the coating composition obtained was applied in a coating amount of 10 g / m 2 as a solid to the base layer using a Meyer stick.
  • a recording sheet of Example 3 was obtained.
  • a mixed stock of 80 parts LBKP (350 ml CSF) and 20 parts NBKP (450 ml CSF) was used as a base layer stock.
  • 20 parts filler (kaolin, kaolinite group, spherical aggregates, 50% average particle size: 0.1 ⁇ m, specific weight: 2.2), 1.5 parts ⁇ -chloro-poly (oxyethylene-polymethylene-trialkylammonium salt) and 1, 5 parts of aluminum sulfate was added to the paper stock to make a base layer slurry.
  • a base layer of 60 g / m2 basis weight was formed by using a machine for making handmade paper (made by Tozai Seiki Kabushiki Kaisha) and left in the condition after pressing.
  • the coating composition was prepared by mixing 50 parts of paper sizing agent (anionic styrene-acrylic acid copolymer, Hama-coat S700, manufactured by Misawa Ceramic Chemical Co.) and 50 parts of oxidized starch, and diluting the resulting mixture with water to 9% consistency.
  • the coating composition was applied in a coating amount of 3.5 g / m 2 as a solid to a base layer using a Meyer rod and then dried.
  • a recording sheet of Example 4 was obtained.
  • a mixed paper stock consisting of 100 parts LBKP (350 ml CSF), 20 parts kaolin (kaolinite group, spherical aggregates, 50% mean primary particle size: 0.1 ⁇ m, specific weight: 2.2) and 1.5 parts aluminum sulfate was used to make a mud.
  • a layer was made from this sludge using a handmade paper making machine. The layer was dewatered by the usual method, pressed and then dried. An ink jet recording sheet (90 g / m2 basis weight) of Comparative Example 1 was obtained.
  • filler precipitated calcium carbonate of the calcite group, spherical aggregates, 50% mean primary particle size: 0.1 ⁇ m, specific weight: 2.2
  • aluminum sulfate was added to 100 parts of LBKP (350 ml of CSF) as a paper stock to make a mud.
  • a paper of 90 g / m2 basis weight was produced from this slurry in the same manner as in Comparative Example 1.
  • 50 parts of paper sizing agent anionic styrene-acrylic acid copolymer, Hama-coat S-700, manufactured by Misawa Ceramic Chemical Co.
  • oxidized starch were mixed and diluted with water to 9% consistency to obtain a coating composition.
  • the coating composition was applied in a coating amount of about 2.5 g / m2 as a solid to the above paper by means of a Meyer stick, and then dried.
  • An ink jet recording sheet of Comparative Example 3 was obtained.
  • the properties of the ink jet recording sheets were obtained from The examples and comparative examples were tested and evaluated as follows. The test results are summarized in Table 1.
  • the density on the area was measured using MacBeth RD 915 manufactured by Kollmorgen Corporation.
  • the respective color densities of the four colors were summed (added) and are given in Table 1.
  • the recording papers with a total color density of 3.3 and above were rated "good".
  • this invention consists in that an ink-receiving layer is placed on one side of a base layer, that an ink penetration-preventing layer is placed on the other side of the base layer, and that the base layer optionally contains a sizing agent and / or contains cationic polymer in a small amount.
  • This invention achieves two objects that have not been accomplished with ordinary ink jet recording sheets. I.e. the ink jet recording sheet of the present invention has sufficient ink absorbency and improved print through. Further, the recording sheet of the present invention has advantages of a superior recording property such as a good recording density and a decrease in the curl caused by the swelling or contraction of the fibers in ink absorption.

Claims (9)

  1. Feuille d'enregistrement pour imprimante à jet d'encre. caracterisée en ce que sur une face d'une couche de base (couche B), qui se compose d'une feuille à une ou deux couches, est appliquée une couche absorbant l'encre (couche A) et que sur l'autre face de la couche de base est appliquée, à l'aide d'un procédé d'enduction ou d'imprégnation, une couche empêchant la penetration de l'encre.
  2. Feuille d'enregistrement pour imprimante à jet d'encre suivant la revendication 1, caractérisée en ce que la couche de base contient une colle et/ou un polymère cationique.
  3. Feuille d'enregistrement pour imprimante à jet d'encre suivant la revendication 2, caractérisée en ce que la colle est présente en une quantité de 0,01 à 2,5 parts pour 100 parts de fibre de pulpe de la couche de base.
  4. Feuille d'enregistrement pour imprimante à jet d'encre suivant la revendication 2, caractérisée en ce que le polymère cationique est présent en une quantité de 0,01 à 5 parts pour 100 parts de fibre de pulpe de la couche de base.
  5. Feuille d'enregistrement pour imprimante à jet d'encre suivant la revendication 1, caractérisée en ce que la couche de base a un degré de collage d'au moins 3 secondes et une opacité d'au moins 75%.
  6. Feuille d'enregistrement pour imprimante à jet d'encre suivant la revendication 1, caractérisée en ce que la couche empechant la pénétration de l'encre contient un agent empechant la pénétration de l'encre.
  7. Feuille d'enregistrement pour imprimante à jet d'encre suivant la revendication 6, caractérisée en ce que l'agent empéchant la pénétration de l'encre est une colle de surface.
  8. Feuille d'enregistrement pour imprimante à jet d'encre suivant la revendication 6, caractérisée en ce que l'agent empêchant la pénétration de l'encre est une matière présentant une faible affinité pour de l'encre aqueuse ou empêchant la pénétration de l'encre aqueuse.
  9. Feuille d'enregistrement pour imprimante à jet d'encre suivant la revendication 1, caractérisée en ce que la couche empêchant la pénétration de l'encre contient une charge.
EP19900104997 1989-03-17 1990-03-16 Papier d'enregistrement par jet d'encre Expired - Lifetime EP0387893B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP65148/89 1989-03-17
JP1065148A JPH0725191B2 (ja) 1989-03-17 1989-03-17 インクジェット記録シート

Publications (2)

Publication Number Publication Date
EP0387893A1 EP0387893A1 (fr) 1990-09-19
EP0387893B1 true EP0387893B1 (fr) 1993-10-27

Family

ID=13278507

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Application Number Title Priority Date Filing Date
EP19900104997 Expired - Lifetime EP0387893B1 (fr) 1989-03-17 1990-03-16 Papier d'enregistrement par jet d'encre

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EP (1) EP0387893B1 (fr)
JP (1) JPH0725191B2 (fr)
DE (1) DE59003184D1 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0435985A (ja) * 1990-06-01 1992-02-06 Oji Paper Co Ltd インクジェット用紙
JP2521896B2 (ja) * 1991-01-18 1996-08-07 日本製紙株式会社 インクジェット記録シ―ト
US5515093A (en) * 1993-06-25 1996-05-07 Canon Kabushiki Kaisha Ink jet printing method and print medium for use in the method
JP3412865B2 (ja) * 1993-07-16 2003-06-03 キヤノン株式会社 記録シート及びこれを用いたインクジェット記録方法
DE4338486A1 (de) * 1993-11-11 1995-08-10 Basf Ag Verfahren zur Herstellung von Aufzeichnungsmaterialien für Tintenstrahldrucker
JP3329579B2 (ja) * 1994-06-03 2002-09-30 三菱製紙株式会社 インクジェット記録シート
JP3591938B2 (ja) 1994-10-27 2004-11-24 キヤノン株式会社 インクジェット用記録媒体及びこれを用いた画像形成方法
US5897961A (en) * 1997-05-07 1999-04-27 Xerox Corporation Coated photographic papers
US6720041B2 (en) 1998-11-20 2004-04-13 Canon Kabushiki Kaisha Recording medium, and method for producing image using the same
JP4038929B2 (ja) * 1999-03-29 2008-01-30 王子製紙株式会社 両面記録媒体
US6716495B1 (en) 2000-11-17 2004-04-06 Canon Kabushiki Kaisha Ink-jet recording apparatus and recording medium
US6706340B2 (en) 2000-11-17 2004-03-16 Canon Kabushiki Kaisha Recording medium, process for production thereof, and image-forming method employing the recording medium
DE102013100790A1 (de) * 2013-01-26 2014-07-31 Format-Darmstadt GmbH Buchblock
CN106758513B (zh) * 2016-11-23 2019-01-18 章莎莎 无涂层喷墨热升华转印纸及其制备方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AR206732A1 (es) * 1974-10-10 1976-08-13 Kroyer St Annes Ltd Karl Procedimiento para producir en seco banda continua fibrosa y banda obtenida con el mismo
JPS60114762U (ja) * 1984-01-06 1985-08-03 三洋電機株式会社 インクジエツト印写紙
JPS62134287A (ja) * 1985-12-06 1987-06-17 Canon Inc 被記録材およびその記録方法

Also Published As

Publication number Publication date
DE59003184D1 (de) 1993-12-02
JPH0725191B2 (ja) 1995-03-22
JPH02243381A (ja) 1990-09-27
EP0387893A1 (fr) 1990-09-19

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