EP1216839A1 - Matériau d'enregistrement à jet d'encre - Google Patents

Matériau d'enregistrement à jet d'encre Download PDF

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Publication number
EP1216839A1
EP1216839A1 EP01130136A EP01130136A EP1216839A1 EP 1216839 A1 EP1216839 A1 EP 1216839A1 EP 01130136 A EP01130136 A EP 01130136A EP 01130136 A EP01130136 A EP 01130136A EP 1216839 A1 EP1216839 A1 EP 1216839A1
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EP
European Patent Office
Prior art keywords
barrier layer
paper
range
base paper
recording medium
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.)
Withdrawn
Application number
EP01130136A
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German (de)
English (en)
Inventor
Etienne Schwizer
Eric Wetzka
Armin Weeber
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.)
SIHL
Original Assignee
SIHL
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 SIHL filed Critical SIHL
Publication of EP1216839A1 publication Critical patent/EP1216839A1/fr
Withdrawn legal-status Critical Current

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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
    • B41M5/502—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

Definitions

  • the invention relates to a recording material such as that used in the ink-jet sector (ink-jet technology). Is used with a base paper and an ink receiving layer, the Base paper to the ink receiving layer is provided with a barrier layer. The barrier layer is to prevent the ink absorbed by the ink receiving layer from entering the Penetrate paper and cause it to swell. The invention also relates to a method of manufacturing such an ink jet recording medium.
  • the ink jet recording process is one of the electronic printing processes and is already have been described in many places. It is used in a wide range of manufacturing of color graphics, color images and also text prints. To those with this technology
  • the recording materials used make high demands. For this include high color density, high resolution, short ink drying times, Light stability, as well as dimensional stability.
  • the color should create dots of color on the support, which are localized as precisely as possible and only to that extent in the transverse Plane (x, y plane, paper plane) are as desired, i.e. as far as that the paper-white surface sections remaining between the points with perfect localization as far as possible be covered by the bleeding.
  • the dye must be absorbed by the carrier as quickly as possible and on or in be fixed so that on the one hand the printhead the next time the printer to be printed is run over Do not immediately smear the fresh ink and, on the other hand, the Ink cannot be blurred even when touched on the finished print. On the other Ensure that the dye does not seep too much into the carrier, otherwise as a result of the layers remaining above the color the color appearance looks dull and somewhat dull.
  • a record carrier and a method for the production of such a recording medium for the ink jet area To provide, which is particularly inexpensive and in addition to the aforementioned Requirements for such a material also convince with regard to brightness and under The influence of light tends to yellow only slightly. The latter especially with regard to prints with high light pollution, e.g. Posters that are intended to be hung outdoors to become.
  • the solution to this problem is specified with respect to the record carrier in claim 1.
  • the essence of the invention is thus that as a binder for the barrier layer a post-crosslinking polyacrylate dispersion (in which the polyacrylate is already pre-crosslinked can be used.
  • the barrier layer directly the production of the base paper on the paper machine on the base paper web. A separate operation on a coating machine combined with a and rolling up the base paper web is thus advantageously eliminated for the application of the barrier layer.
  • polyacrylate Under post-crosslinking polyacrylate as a generic term, it can be a polyacrylate act with identical monomer units, or preferably also polyacrylate comonomers with different monomer components, of which one Group is responsible for networking, and at least one of them Basis of an acrylate is based.
  • Monomer building blocks like Methacrylates, butyl acrylates, or mixtures thereof (then as a copolymer) in question.
  • the corresponding amides and especially e.g. N-methylolacrylamide groups which then responsible for networking can be used, e.g. in one Copolymer with methyl acrylates and butyl acrylates such as e.g.
  • Makrovil D7438 which is a copolymer of acrylates with N-methylolacrylamides.
  • polyacrylates also copolymers of such acrylates with e.g. styrenes, Butadienes, vinyl acetates, vinylidene chlorides, vinyl chlorides, acrylonitriles, acrylonitrile etc., as long as these copolymers are also post-crosslinking.
  • styrene acrylates also come Butadiene acrylates, styrene-butadiene acrylates, styrene-butadiene methyl acrylates, and Styrene butyl acrylates etc. in question.
  • a polyacrylate dispersion is used as the binder used, which is essentially already at least partially in a Cross-linked temperature, like a paper web on a paper machine in the drying stage undergoes a one-sided function stroke, due to the evaporation of the solvent the barrier layer, i.e. essentially of water (with blowing on between 160 ° C and 180 ° C hot air) there usually a temperature between 80 ° C and 95 ° C, especially 90 ° C is reached.
  • the barrier layer i.e. essentially of water (with blowing on between 160 ° C and 180 ° C hot air) there usually a temperature between 80 ° C and 95 ° C, especially 90 ° C is reached.
  • the barrier layer i.e. essentially of water (with blowing on between 160 ° C and 180 ° C hot air) there usually a temperature between 80 ° C and 95 ° C, especially 90 ° C is reached.
  • the networking is sufficient Size also within the drying stage, at least until Roll up, resp
  • Adequate networking until rolling up or. first contact with a roller necessary so that the base paper does not stick and then reappears at all can roll off.
  • Another embodiment of the invention is characterized in that the binder the barrier layer as a gloss-enhancing component, hollow polystyrene balls and / or Calcium carbonate are added.
  • the binder can do natural things Calcium carbonate, water-containing kaolin, and / or a silicate and / or titanium oxide are added become.
  • the invention further relates to a method for producing an inkjet recording medium according to the above type, which is characterized in that like already mentioned the base paper made on a paper machine and the barrier layer is coated on-line on the base paper on this paper machine and as a binder a post-crosslinking polyacrylate dispersion is used for the barrier layer.
  • the drawing shows a section through an exemplary embodiment of a coated ink jet recording medium 1, consisting of a base paper 2, a barrier layer 4 applied thereon and an ink receiving layer 3 applied thereon.
  • the base paper has a weight per unit area of 100 to 300 g / m 2 , whereby for Many photorealistic papers typically have basis weights of 140 or 220 g / m 2 .
  • the base paper is advantageously coated on the back with a further functional layer, for example in order to avoid curl and cockle effects with an anti-curl layer 5.
  • bales of Wisabetula ECF and 1 Bale of Ceasa Green (ECF) eucalyptus, i.e. Short fiber wood used.
  • ECF Ceasa Green
  • Dyes for coloring the paper, as well as other additives such as deaerators / defoamers and amphoteric sizing agents based on styrene-acrylate copolymers such as Perglutin 450/280 (available from BK Giulini Chemie, Ludwigshafen, DE) in Dosages as known to the expert and from this without undue effort can be determined, among other things depending on the paper machine used.
  • Wisabetula ECF is a bleached hardwood pulp (birch) available from UPM-Kymmene, Wisaforest, with a density in the range of 750 kg / m 3 and a pH in the slightly acidic range.
  • Ceasa Green (ECF) eucalyptus is a bleached eucalyptus pulp with a density in the range of 500 - 700 kg / m 3 , a pH in a slightly acidic range and an average fiber length of 0.8 mm.
  • the base paper starting from the above pulp, is made in the paper machine in a conventional manner Manufactured way.
  • on-line i.e. barrier layer 4 on the same machine applied on one side.
  • the barrier layer 4 is first in a first step applied, and then a back layer 5 such as an anti-curl layer, both on-line on the paper machine.
  • the barrier layer is manufactured according to the following procedure (a detailed description of the individual components are given at the end):
  • Makrovil D 7438 is one for the Textile division developed post-crosslinking polyacrylate dispersion. It has a solids content (DIN 53189) of approx. 50% in aqueous solution, a viscosity at 25 ° C (DIN 53019-1) of ⁇ 150 mPa ⁇ s, a pH value of 4.5 +/- 1.5, a minimum film formation temperature (DIN 53787) of approx. 16 ° C and an anionic ionicity. Areas of application are according to Data sheet Uses as a binder for strengthening nonwovens or for coating and impregnation of fabrics, in particular glass mesh fabrics for reinforcement. Makrovil D 7438 is characterized by a clear and tack-free film with a very good one Alkali resistance. When cross-linked, the film is in water and most organic solvents insoluble.
  • the data sheet also states that Makrovil D 7438 is characterized by a clear and excellent non-sticky film with a very good alkali resistance. When connected, i.e. after a thermal treatment at about 140 ° C, the film is in water and most organic solvents insoluble.
  • the data sheet assumes that for the (complete) crosslinking of Makrovil requires a temperature of approx. 140 ° C. in the Within the scope of the present invention, however, it has been found that at least one for the present application has sufficient networking even at much lower ones Temperatures in the range between 90 ° C and 100 ° C, i.e. at temperatures like them occur in the last drying stage of a paper machine can be achieved.
  • Setacarb HG GU is a selected, wet-ground, predispersed, natural calcium carbonate (marble, microcrystalline, rhombohedral particle shape) according to the data sheet of Omya GmbH, Sales Paper Industry, A-9722 Gummern 20.
  • the carbon content is> 98.5%, the density (ISO 787/10) 2.7 g / cm 3 , the refractive index 1.59 and the hardness (Mohs) 3.
  • the fineness is characterized by a sieve residue 45 ⁇ m (ISO 787/7) ⁇ 60 ppm, an upper cut (D 98% ) of 3 ⁇ m, an average particle diameter (D 50% ) of 0.5 ⁇ m and a particle fraction ⁇ 1 ⁇ m of 80%.
  • the solids content is 78%, the pH (ISO 787/9) 9 and the viscosity 800 mPas (Brookfield, Sindel No. 3, 100 rpm, 20 ° C.).
  • the main areas of application are uses as a top coat pigment for the paper and cardboard industry, whereby high-gloss surfaces can be achieved.
  • Ropaque HP 543 are small (0.5 ⁇ m), hollow polystyrene beads, which are from the company Rohm and Haas are made to be embedded in coatings, in particular to increase their gloss. They are available in the form of a dispersion with a Solids content of approx. 30%, a pH value between 8.0 and 8.7 and a viscosity of 15 - 100 mPas (Brookfiled LFV spindle 2, 60 rpm).
  • the barrier layer 4 is applied to the base paper 2 with a basis weight of 15-25 g / m 2 , optimally with 18 g / m 2 . This in the form of a 47% dispersion.
  • the paper web is first used in the first two thirds of the machine on the paper machine manufactured. In the last third, the coating is found with the first one Functional line, the barrier layer 4, and then the rear anti-curl layer 5 instead of.
  • the paper rolled up at the end is then calendered on a calendering machine and coated with an ink-receiving layer 3 on a coating machine. That of the coating stage Paper fed to the barrier layer 4 is ideally "over-dried", i.e. has a very low water content of around 2% (usually paper a water content of 5-7%). This measure means that when painting necessary drying of the barrier layer is at least partially taken over by the over-dried paper can be, i.e. that the paper absorb some of the water from the barrier stroke can.
  • the barrier layer 4 is typically at a bath temperature of the barrier coating dispersion 28 ° C onto the paper using a roller and then with an opposite one cylindrical 13/90 squeegee (spiral sawtooth structure on the outside of the Doctor cylinder with angle 90 ° and notch depth 0.13 mm) with side outflow limitation (more at the end The area of the squeegee cylinder is not notched but at the height of the tips Saw teeth held) the abundance doctored.
  • the side outflow limitation is recommended otherwise coating liquid can get to the other side of the paper web and can thus cause the webs to stick to one another or to rollers.
  • the bathroom is cleaned cyclically, i.e.
  • the paper which is fed at a speed of 75 m / min, for example, is now fed into a Sent drying stage, in which the paper web from both sides with hot air one Temperature of 160-180 ° C is blown. The paper web is thereby on one Air cushion transported. It turns out to be advantageous to keep the airflow at the top, i.e. the to drive higher towards the barrier layer than the lower one, e.g. in a flow ratio from 60:40. In such a drying stage, the paper has a temperature of approx. 90 ° C.
  • the dryer has a length of 5 m, i.e. the paper goes through the dryer typically within a period of 4 sec.
  • the paper coated on one side becomes the further coating process on the back fed. It is of course important that the barrier layer 4 before each Contact with a roller or roller, i.e. ideally at the end of the drying stage, already is so dry that no sticking occurs.
  • the applied barrier layer 4 shows an insulating behavior, it should be excessive Avoid charging the rollers and rollers involved, but also to ensure that they are attached to prevent dust and dirt particles on the damp layer, before and if necessary be electrostatically grounded after application.
  • the paper is then provided with an anti-curl layer on the back, cut off on the side to have the web homogeneous across the entire width, and then rolled up.
  • the on the barrier layer obtained above is characterized by a high smoothness and with a high gloss, which is otherwise only possible in paper production Before and a top coat can be achieved.
  • the paper web is then calendered in a calendering machine, with the polystyrene balls partially, i.e. deform into lenses, especially in the surface area.
  • the ink-receiving layer 3 is then applied in a final step, which also due to the already high degree of whiteness and gloss of the barrier layer can be kept in a transparent form.
  • the barrier layer 4 according to the invention and in the composition as described above is further characterized by the fact that the final function line, i.e. the Ink receiving layer 3, adheres very well to it, but at the same time the stickiness is not so pronounced is that the barrier layer on rollers or on rolled paper is causing problems leads. In other words, the balance between the function line liability and the anti-block resp. Anti-sticking tendency of the base paper.
  • the barrier layer 4 is largely solvent and water resistant, which in With regard to the printing of the ink jet recording medium on the one hand with solvent-based Dye inks and on the other hand with pigment inks is of great importance because the barrier layer for the corresponding inks should be as impermeable as possible.

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  • Ink Jet Recording Methods And Recording Media Thereof (AREA)
  • Paper (AREA)
EP01130136A 2000-12-20 2001-12-19 Matériau d'enregistrement à jet d'encre Withdrawn EP1216839A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH24872000 2000-12-20
CH24872000 2000-12-20

Publications (1)

Publication Number Publication Date
EP1216839A1 true EP1216839A1 (fr) 2002-06-26

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EP01130136A Withdrawn EP1216839A1 (fr) 2000-12-20 2001-12-19 Matériau d'enregistrement à jet d'encre

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EP (1) EP1216839A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109415870A (zh) * 2016-09-09 2019-03-01 惠普发展公司，有限责任合伙企业 织物印刷介质
US10906345B2 (en) 2016-09-09 2021-02-02 Hewlett-Packard Development Company, L.P. Fabric print medium
US11110733B2 (en) 2016-09-09 2021-09-07 Hewlett-Packard Development Company, L.P. Fabric print medium

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0562578A1 (fr) * 1992-03-24 1993-09-29 Mitsubishi Rayon Co., Ltd Résine polyester pour une couche réceptrice de colorant utilisée dans l'enregistrement par transfert thermique
EP0590322A2 (fr) * 1992-10-01 1994-04-06 Felix Schoeller jr. Papierfabrik GmbH & Co. KG Support pour un matériau récepteur d'images pour transfert thermique de colorants par diffusion
EP0652114A1 (fr) * 1993-10-08 1995-05-10 Dai Nippon Printing Co., Ltd. Feuille réceptrice d'image de transfert thermal
EP0795419A1 (fr) * 1996-03-15 1997-09-17 Seiko Epson Corporation Matériau d'enregistrement avec couche adhésive
EP0826823A1 (fr) * 1996-08-29 1998-03-04 - Sihl - Zürcher Papierfabrik An Der Sihl Papier spécial
WO2000006392A1 (fr) * 1998-07-29 2000-02-10 W.A. Sanders Papierfabriek Coldenhove B.V. Papier a report pour impression par jet d'encre

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0562578A1 (fr) * 1992-03-24 1993-09-29 Mitsubishi Rayon Co., Ltd Résine polyester pour une couche réceptrice de colorant utilisée dans l'enregistrement par transfert thermique
EP0590322A2 (fr) * 1992-10-01 1994-04-06 Felix Schoeller jr. Papierfabrik GmbH & Co. KG Support pour un matériau récepteur d'images pour transfert thermique de colorants par diffusion
EP0652114A1 (fr) * 1993-10-08 1995-05-10 Dai Nippon Printing Co., Ltd. Feuille réceptrice d'image de transfert thermal
EP0795419A1 (fr) * 1996-03-15 1997-09-17 Seiko Epson Corporation Matériau d'enregistrement avec couche adhésive
EP0826823A1 (fr) * 1996-08-29 1998-03-04 - Sihl - Zürcher Papierfabrik An Der Sihl Papier spécial
WO2000006392A1 (fr) * 1998-07-29 2000-02-10 W.A. Sanders Papierfabriek Coldenhove B.V. Papier a report pour impression par jet d'encre

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109415870A (zh) * 2016-09-09 2019-03-01 惠普发展公司，有限责任合伙企业 织物印刷介质
US10906345B2 (en) 2016-09-09 2021-02-02 Hewlett-Packard Development Company, L.P. Fabric print medium
CN109415870B (zh) * 2016-09-09 2021-05-18 惠普发展公司，有限责任合伙企业 织物印刷介质
US11110733B2 (en) 2016-09-09 2021-09-07 Hewlett-Packard Development Company, L.P. Fabric print medium
US11207908B2 (en) 2016-09-09 2021-12-28 Hewlett-Packard Development Company, L.P. Fabric print medium

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