EP0379964B1 - Feuille pour enregistrement par jet d'encre - Google Patents

Feuille pour enregistrement par jet d'encre Download PDF

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Publication number
EP0379964B1
EP0379964B1 EP90100957A EP90100957A EP0379964B1 EP 0379964 B1 EP0379964 B1 EP 0379964B1 EP 90100957 A EP90100957 A EP 90100957A EP 90100957 A EP90100957 A EP 90100957A EP 0379964 B1 EP0379964 B1 EP 0379964B1
Authority
EP
European Patent Office
Prior art keywords
recording sheet
ink jet
ink
coating
silicon dioxide
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.)
Revoked
Application number
EP90100957A
Other languages
German (de)
English (en)
Other versions
EP0379964A1 (fr
Inventor
Yutaka Central Research Laboratory Kojima
Takashi Central Research Laboratory Omori
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Paper Industries Co Ltd
Original Assignee
Nippon Paper Industries Co Ltd
Jujo 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
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Application filed by Nippon Paper Industries Co Ltd, Jujo Paper Co Ltd filed Critical Nippon Paper Industries Co Ltd
Publication of EP0379964A1 publication Critical patent/EP0379964A1/fr
Application granted granted Critical
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Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
    • D21H17/68—Water-insoluble compounds, e.g. fillers, pigments siliceous, e.g. 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
    • B41M5/52—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
    • B41M5/52—Macromolecular coatings
    • B41M5/5245—Macromolecular coatings characterised by the use of polymers containing cationic or anionic groups, e.g. mordants
    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/41—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups
    • D21H17/44—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups cationic
    • D21H17/45—Nitrogen-containing groups
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/259—Silicic material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/27—Web or sheet containing structurally defined element or component, the element or component having a specified weight per unit area [e.g., gms/sq cm, lbs/sq ft, etc.]
    • Y10T428/273—Web or sheet containing structurally defined element or component, the element or component having a specified weight per unit area [e.g., gms/sq cm, lbs/sq ft, etc.] of coating

Definitions

  • the invention relates to a recording sheet for ink steel discs.
  • Inkjet printers one of the impact-free recording systems, are of particular interest for such prints because comparatively fast color and color recordings are obtained with a simple system that works quieter than impact printers, such as dot printers, etc., and therefore used in the office is preferred.
  • JP-A-55-51583 describes an ink jet recording sheet coated with non-colloidal silica powder
  • JP-A-56-148583 describes a recording sheet in which a base paper is coated with a mixture of a finely divided silica and a water-soluble resin
  • JP-A-57-107879 describes a recording sheet made with a bulk of a synthetic silica and an aqueous binder is coated at least twice with a total coating amount of at least 10 g / m2.
  • silicas which are obtained by the wet precipitation process, the gel process, the dry process, etc., the dry process consisting in hydrolysis of the silicon tetrachloride in a detonating gas flame.
  • silica obtained by the wet precipitation method and the gel method are mainly used today; they are described in the above JP publications.
  • the use of the silicon dioxide obtained by the dry process is proposed in JP-OL 60-204390, according to which the ink-receiving layer contains the ultrafine silicon dioxide.
  • This document describes essentially the following methods: a method in which an ink-receiving layer, which has been obtained by coating a carrier with synthetic amorphous silicon dioxide in a coating amount of at least 10 g / m 2, is coated with ultrafine silicon dioxide and a method in which a Carrier is coated with a mixture of an ultrafine silica and a silica obtained by the precipitation process in a certain mixing ratio and in a coating amount of 15 g / m2. So this is a coating of more than 10 g / m2. Therefore, the technology described in JP-A-60-204390 is substantially the same as that described in JP-A-55-51583, 56-148583, 57-107879, etc. That is, the aim of the known methods is to produce an ink jet recording sheet having a good recording density and superior ink absorption ability, which is achieved by applying a coating composition of 10 to 20 g / m2 on a support.
  • JP-A-56-84992 describes a method in which the surface of a recording layer is coated with a polycationic polyelectrolyte.
  • JP-A-59-20696 describes a method using an ink-receiving layer containing polydimethyldiallylammonium chloride.
  • To produce a recording sheet having good lightfastness and superior image durability it is known to use a recording sheet having an ink-receiving layer containing a metal oxide, a UV absorber, an oxidation inhibitor and the like.
  • JP-A-58-177390 describes that an ink jet recording sheet suitable for ink jet recorders with electric field control is coated by coating an ink-receiving layer made of a mixture of synthetic silica and aqueous binder with an electric conductor of the quaternary ammonium salt type under normal Can get pressure.
  • This recording sheet is not affected by changes in environmental humidity due to the presence of an electrostatic preventing agent.
  • the previous ink jet recording sheets have been used to improve properties such as recording density, ink absorbency and drying, ink flow, ink flow, water resistance, light resistance and the manufacturability of an excellent sheet and image.
  • FR-A-2 605 934 describes a recording sheet for ink jet printers which consists of a support coated with two types of cationic polymers.
  • the coating can also contain, as a pigment, an amorphous silicon dioxide produced by the wet process.
  • EP-A-121 916 describes a recording paper for ink jet recorders which consists of a support and at least one coating arranged thereon.
  • the coating contains a fine silicon dioxide produced by the wet process with a specific surface area of at least 200 m2 / g and a water-soluble, polymeric binder, such as polyvinyl alcohol or a derivative thereof.
  • Gases that cause a color change or discoloration are, for example, NO x , sulfur dioxide, etc. in exhaust gases and factory emissions, ozone from copying machines, cigarette smoke and the like.
  • Ozone from copying machines is being created more and more because the miniaturization and simplification of copying machines into office machines means that many small or medium-sized copying machines are being used more and more in the office.
  • the color change or discoloration of the recorded image due to oxidizing gases in closed rooms and outdoors is therefore a very big problem. It is known that some of the oxidizing gases excite the acidic molecules in an aqueous ink in conventional ink jet recording images. In order to obtain good recording density and sufficient ink absorbency in a multi-color ink jet recording sheet with high image quality and density, it is necessary that a suitable ink-receiving layer of ink-accepting material is applied in accordance with the maximum amount of ink jet based on the unit area of the printer .
  • the previous coating of synthetic amorphous silicon dioxide usually requires a coating amount of at least 10 g / m 2 on a support.
  • a fibrous carrier is coated with a filler, including silicon dioxide, in a coating amount of approximately 10 g / m 2, the fibers are completely covered with this filler, so that the paper-like character and the paper-like feel are lost.
  • these fine silicas require a larger amount of binder in the coating compared to other fillers because of the smaller volume density. Because the gaps in the coating are filled with this binder, the amount of coating must be increased further in order to obtain good ink absorption capacity. As a result, the paper-like character and grip are lost.
  • the recording sheet which has good ink absorbency has the disadvantages that it has poor surface strength and thereby easily generates paper dust which clogs the nozzles, etc. of the printer, thereby not using this sheet as a conventional recording sheet can be.
  • the synthetic silica used as a catalyst in the oxidation reaction has a strong catalytic function. Therefore, as the amount of the coating to improve the recording density and the ink absorption ability increases, the catalytic effect also increases. In the case of the previous recording sheets, in which the synthetic silicon dioxide is applied in a large amount of coating, this leads to a considerably greater discoloration of the recording image due to the resulting oxidizing gases. The paper-like character and the grip have deteriorated. Furthermore, the metal oxides, UV absorbers, oxidation inhibitors, polycationic polyelectrolytes etc., which are used for good lightfastness and sufficient lightfastness of the images, are unable to prevent the discoloration by oxidizing gases. Some of these materials even cause the discoloration.
  • the ink jet recording sheet Prevent discoloration by oxidizing gases, etc. while maintaining good recording density, superior ink absorbency and paper-like character.
  • the invention has for its object to provide a recording sheet for inkjet pens available, which while maintaining the paper character and the good grip of the uncoated sheet provides a uniform image, a high recording density and good multiple recording, less image discoloration by oxidizing gases and excellent image durability and high lightfastness.
  • a recording sheet for ink jet pens which print with aqueous ink containing a water-soluble dye, consisting of a carrier made of an ink-absorbent material which is coated with an ink-receiving material which contains a mixture of an amorphous silicon dioxide and a cationic resin, or is impregnated, characterized in that the amorphous silicon dioxide is a silicon dioxide obtained by hydrolysis of silicon tetrachloride in a detonating gas flame, which consists of aggregates of spherical particles with an average primary particle size of 7-40 nm.
  • the silicon dioxide (Aerosil) used according to the invention has a high SiO2 content and no inner surface.
  • silicas easily give hydrogen bonds and exhibit a thixotropy phenomenon in polar solvents such as water.
  • the silicon dioxide obtained after the wet process has many silanol groups on the inner surface.
  • the (ultrafine) silicon dioxide used according to the invention has many silanol groups on the (outer) particle surface due to the lack of the inner surface.
  • the silicon dioxide used according to the invention forms hydrogen bonds in which silanol groups act as the center, and from a certain sludge concentration it has a considerable increase in viscosity compared to the silicon dioxide obtained by the wet process, so that in combination with a water-soluble resin, it is a binder for the previous one silicon dioxide obtained by the wet process, cannot be applied. It has been found that the silicon dioxide used according to the invention can be applied in combination with the cationic resin used according to the invention.
  • the dispersion of the mixture of the ultrafine anhydrous silica and the cationic resin leads to fairly uniform aggregates, which lowers the viscosity of the sludge compared to that of the coating composition without a cationic polymer.
  • the dispersed mixture can therefore be applied and the coating obtained has a voluminous structure.
  • the specific BET surface area can be in a wide range. According to the invention, many ultrafine silicas can be used regardless of the specific BET surface area. A small BET surface area lowers the recording density and a large BET surface area leads to larger aggregates of the silica and uneven gaps into which the ink sinks, which lowers the recording density. Therefore, it is necessary to select the silica having an appropriate specific surface taking into account the quality of the recording sheet, the properties of the coating composition, etc.
  • the silicon dioxide preferably has a BET surface area of 50-380 m 2 / g.
  • Examples of the cationic resin used in this invention are polyethyleneimines, Polydimethyldiallylammoniumsalze such as polydimethyldiallylammonium chlorides, polyalkylene Polyamindicyandiamidammoniumchloride, polyalkylene Polyamindicyandiamidammonium condensates, polyvinylpyridinium halides, polymers of (meth) acrylamidalkyl-quaternary ammonium salts, polymers of (meth) acryloyloxyalkyl-quaternary ammonium salts, ⁇ - Chlorine-poly (oxyethylene-polymethylene-quaternary ammonium salts), polyvinylbenzyl-trimethylammonium salts and the like
  • the mixing ratio of the cationic resin to silica is easily determined depending on the kind, the molecular weight and the cationic charge (charge strength) of the cationic resin, the specific surface and the particle size of the ultrafine (anhydrous) silica, and the kind and the amount of the binder. It is advantageous to use 0.2-20 parts by weight of the cationic resin based on 100 parts by weight of the ultrafine (anhydrous) silica and a mixing ratio (weight) of cationic resin to water-soluble binder of 1: 0-2.
  • the ink-receiving layer is preferably applied in an amount of at most 10 g / m2, in particular less than 10 g / m2.
  • the coating can contain various water-soluble resins as binders.
  • water-soluble resins are: Starch, cationic starch, polyvinyl alcohol, cellulose derivatives such as hydroxyethyl cellulose and carboxymethyl cellulose, polyacrylamides, polyvinyl pyridine, polyethylene oxide, polyvinyl pyrrolidone, casein, gelatin, sodium alginate, polystyrene sulfonate, sodium polyacrylate, hydrolyzed starch-Acrylnitrilpropfcopolymer, sulfonated chitin, carboxylated chitin, chitosan, and their derivatives and the like.
  • the binders which have low reactivity with the cationic resin are preferred.
  • the coating (the ink-absorbing layer) mainly contains the ultrafine (anhydrous) silicon dioxide, possibly other fillers for improving the paper gliding property, the printability, etc.
  • fillers examples include calcium carbonate, clay, kaolin, Japanese acid clay, talc, synthetic silicon dioxide (obtained by the wet precipitation process and the gel process), aluminum oxide, aluminum hydroxide, zinc oxide, calcium silicate, synthetic silicates, titanium dioxide, diatomaceous earth, aluminum sulfate, satin white, glass powder, organic resin pigments and the like
  • the coating may also contain other chemicals, for example surface-active agents for improving the quality of the print, e.g. for the improvement of course and spot diameter.
  • the carrier for the coating must be an ink-absorbent material, for example a paper containing cavities (pores, capillaries), which consists of paper materials, waste paper, chitin, synthetic Fibers, glass fibers, etc., or a mixture thereof, or a void-containing sheet such as a void-containing non-woven fabric.
  • an ink-absorbent material for example a paper containing cavities (pores, capillaries), which consists of paper materials, waste paper, chitin, synthetic Fibers, glass fibers, etc., or a mixture thereof, or a void-containing sheet such as a void-containing non-woven fabric.
  • the carrier used according to the invention can optionally contain additives in the carrier or in the form of a coating on the carrier.
  • the amount of additives can be selected so that the ink absorbency, the paper-like character and the feel are not impaired.
  • Examples of additives in the carrier are various fillers and other additives, and examples of additives in the form of a coating are resins and pigments, and it is desirable that the coating amount of the pigment is at most 10 g / m 2 in consideration of the paper-like character and good hand to use.
  • a coating press, roller coater, doctor blade coater, bar coater, nozzle machine, etc. can be used for the coating, for example.
  • the ink jet recording sheet of the present invention has a uniform image, high recording density, good multi-color recording, little discoloration of the image when exposed to oxidizing gases, better durability and better light resistance while maintaining the paper-like character (and appearance) and good grip on.
  • the reason for this is unclear.
  • the coating composition which contains a mixture of the ultrafine (anhydrous) silicon dioxide and the cationic resin, gives a thick coating layer with a large number of fairly uniform, suitable gaps (cavities) due to the easy formation of hydrogen bonds by the ultrafine ( anhydrous) silicon dioxide and due to the aggregation effect of the cationic resin. Therefore, the coating amount of ultrafine (anhydrous) silicon dioxide with a strong catalyst function is considerably less than the previous coating amount.
  • the small amount of coating results in a large number of fairly uniform gaps of a suitable size while maintaining the paper-like character and good grip. Because of these gaps, the recording sheet of the present invention has sufficient recording density, high ink absorbency, smooth image and good multi-color recording despite the small amount of coating.
  • the reason for the improved image discoloration is attributed to the fact that the ultrafine silicon dioxide has no highly catalyst-active gaps (pores) and contains only a small amount of silicon dioxide-activating impurities, such as heavy metals and their salts.
  • 100 parts of a bleached hardwood sulfate pulp with 350 cs Freeness as paper stock 10 parts of kaolin (kaolinite group, spherical aggregates, average primary particle size: 0.1 »m, specific weight: 2.2) as filler, 0.15 part of reinforced rosin Sizing agent (Coropal CS, manufactured by Seiko Chemical Co.) and 1 part of aluminum sulfate were mixed and treated on the paper machine to obtain a carrier having a basis weight of 62 g / m2.
  • 100 parts of ultrafine anhydrous silica average primary particle size: 12 nm, BET specific surface area: 200 m 2 / g was dispersed in about 1264 ml of water.
  • a fine silica produced by the wet precipitation process 50% average particle size: 2.7 »m; BET specific surface area: 270 m 2 / g
  • 20 parts of an aqueous solution of polyvinyl alcohol A were mixed to form a coating composition in the form of a 16% aqueous solution.
  • the coating composition obtained was applied by an air brush in a coating amount of about 14 g / m 2 to the support of Example 1 to obtain a recording sheet.
  • a recording sheet of Comparative Example 2 was obtained in the same manner as in Comparative Example 1, but 62.5 parts of a fine silica G prepared by the wet gel process (50% average particle size: 10 ⁇ m; BET specific surface area: 300 m 2 / g) and 37.5 parts of an ultrafine anhydrous silica instead of the fine silica F of Comparative Example 1 made by the wet precipitation process.
  • Example 1 has a good dot density, a low image discoloration, expressed as ozone resistance, a high surface strength, while maintaining the paper-like character and good grip despite the small amount of coating , making this sheet preferred as an ink jet recording sheet.
  • the recording sheet of Comparative Example 1 which is a conventional recording sheet, has strong discoloration and, because of the large amount of coating, has a poor paper-like character and an inferior feel.
  • the recording sheet of Comparative Example 2 like that of Comparative Example 1, has a strong discoloration and a poor paper-like impression and an inferior feel because it contains about 30% of the ultrafine anhydrous silica, based on the filler, but no cationic resins.
  • the recording sheets of Comparative Examples 3 and 4 have due to the Use of a silica produced by the wet process has strong discoloration and poor surface strength despite the small amount of coating and despite the use in combination with a cationic resin.
  • Example 2 An ultrafine silica, a water-soluble binder and a cationic resin were mixed in the mixing ratio shown in Table 2 to prepare a coating composition.
  • the coating composition was applied to the support used in Example 1 in a coating amount of about 2 g / m 2 by a Meyer stick. Recording sheets of Examples 2, 3 and 4 and Comparative Example 6 were obtained.
  • the recording sheets according to the invention despite the small amount of coating, have good dot density, little discoloration and a superior surface strength while maintaining the paper-like character of conventional paper.
  • the recording sheet of Comparative Example 6 which contains no cationic resin, gives a very weak surface strength, whereby the ultrafine anhydrous silica has not been fixed on the surface of the support, and therefore the filler powder is separated.
  • This sheet is unsuitable for manufacture and use.
  • Recording sheets of Examples 9, 10 and 11 were obtained in the same manner as in Example 3, except that a coating amount of about 1 g / m2, 3 g / m2 and 7 g / m3 (solid content) was used instead of the coating amount of 2 g / m2 used.
  • a coating amount of about 1 g / m2, 3 g / m2 and 7 g / m3 (solid content) was used instead of the coating amount of 2 g / m2 used.
  • a recording sheet of the present invention is obtained by controlling the mixing ratio of the binder to the cationic resin or the mixing ratio of the ultrafine anhydrous silica to the cationic resin.
  • LBKP 100 parts of LBKP with 350 ml of Freeness were used as paper stock for a carrier. 25 parts of an ultrafine anhydrous silicon dioxide (average primary particle size: 12 nm; BET specific surface area: 200 m 2 / g) as filler and 2 parts of a cationic resin (polydimethyldiallyl quaternary Ammonium salts; average molecular weight: 120,000) was added. Further, 0.15 part of a reinforced rosin sizing agent (Coropal CS, manufactured by Seiko Kogyo Co.) and 1.0 part of aluminum sulfate were added. A 64 g / m2 basis weight sheet was produced by a paper machine, and the resulting sheet was supercalendered to prepare the recording sheet of Comparative Example 7.
  • a recording sheet of Comparative Example 8 was prepared in the same manner as in Comparative Example 7, except that 50 parts of the ultrafine anhydrous silica was used instead of 25 parts.
  • a 6% aqueous solution of polyvinyl alcohol (degree of saponification: more than 99%; average degree of polymerization: 1700) was applied to the recording sheet of Comparative Example 8 by means of a Meyer stick in a coating amount of about 2 g / m2, dried and supercalendered to form a recording sheet of Comparative Example 9.
  • the ink jet recording sheet of the present invention is produced by coating a support with a coating composition containing a mixture of an ultrafine anhydrous silica and a cationic resin.
  • the recording sheet according to the invention has a uniform image quality, a high recording density, good multi-color recording and little discoloration of the image due to oxidizing gases while maintaining the paper character and good grip. Furthermore, the recording sheet of the invention is economically advantageous because of the small amount of coating required.

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

Claims (7)

  1. Feuille d'enregistrement pour imprimantes à jet d'encre qui impriment avec une encre aqueuse, contenant un colorant soluble dans l'eau, feuille constituée d'un support, en un matériau capable d'absorber l'encre, qui est revêtu ou imprégné d'un matériau, récepteur de l'encre, qui contient un mélange d'un dioxyde de silicium amorphe et d'une résine cationique, feuille caractérisée par le fait que le dioxyde de silicium amorphe est un dioxyde de silicium qui est obtenu par hydrolyse du tétrachlorure de silicium dans une flamme de gaz oxhydrique et qui est constitué d'agrégats de particules sphériques d'une dimension primaire moyenne de particules de 7-40 nm.
  2. Feuille d'enregistrement pour imprimantes à jet d'encre selon la revendication 1, caractérisée par le fait que le dioxyde de silicium présente une surface, évaluée selon le procédé B E T, dans l'ordre de 50 - 380 m²/g.
  3. Feuille d'enregistrement pour imprimantes à jet d'encre selon la revendication 1 ou 2, caractérisée par le fait que la résine cationique est choisie parmi les polyéthylènimines, les sels de polydiméthyldiallylammonium, en particulier les chlorures de polydiméthyldiallylammonium, les chlorures de polyalkylènepolyamindicyandiamidammonium, les condensats de polyalkylènepolyamindicyandiamidammonium, les halogénures de polyvinylpyridinium, les polymères des sels de (méth)acrylamidalkylammonium quaternaire, les polymères des sels de (méth)acryloyloxyalkyl-ammonium quaternaire, les sels d'ω-chloro-poly-(oxyéthylènepolyméthylène-ammonium quaternaire), les sels de polyvinylbenzyltriméthylammonium et le N-méthylglycolchitosane, et leurs mélanges.
  4. Feuille d'enregistrement pour imprimantes à jet d'encre selon l'une des revendications 1 à 3, caractérisée par le fait que la résine cationique est contenue dans une proportion de 0,2 - 20 parties en poids, rapporté à 100 parties en poids du dioxyde de silicium.
  5. Feuille d'enregistrement pour imprimantes à jet d'encre selon l'une des revendications 1 à 4, caractérisée par le fait que le matériau récepteur de l'encre contient en outre un liant.
  6. Feuille d'enregistrement pour imprimantes à jet d'encre selon la revendication 5, caractérisée par le fait que le liant possède une faible capacité de réaction avec la résine cationique.
  7. Feuille d'enregistrement pour imprimantes à jet d'encre selon l'une des revendications 1 à 6, caractérisée par le fait que le matériau récepteur de l'encre est appliqué selon une quantité maximale de 10 g/m².
EP90100957A 1989-01-18 1990-01-17 Feuille pour enregistrement par jet d'encre Revoked EP0379964B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1008993A JP2633671B2 (ja) 1989-01-18 1989-01-18 インクジェット記録用シート
JP8993/89 1989-01-18

Publications (2)

Publication Number Publication Date
EP0379964A1 EP0379964A1 (fr) 1990-08-01
EP0379964B1 true EP0379964B1 (fr) 1994-06-15

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EP90100957A Revoked EP0379964B1 (fr) 1989-01-18 1990-01-17 Feuille pour enregistrement par jet d'encre

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US (1) US5165973A (fr)
EP (1) EP0379964B1 (fr)
JP (1) JP2633671B2 (fr)
CA (1) CA2007373C (fr)
DE (1) DE59006086D1 (fr)

Families Citing this family (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
FR2672315B1 (fr) * 1991-01-31 1996-06-07 Hoechst France Nouveau procede de raffinage de la pate a papier.
DE4116595A1 (de) * 1991-05-22 1992-11-26 Schoeller Felix Jun Papier Aufzeichnungsmaterial fuer das tintenstrahlaufzeichnungsverfahren
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EP0379964A1 (fr) 1990-08-01
DE59006086D1 (de) 1994-07-21
JP2633671B2 (ja) 1997-07-23
CA2007373A1 (fr) 1990-07-18
CA2007373C (fr) 2002-01-08
US5165973A (en) 1992-11-24
JPH02188287A (ja) 1990-07-24

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