WO2005015319A1 - Toner - Google Patents

Toner Download PDF

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Publication number
WO2005015319A1
WO2005015319A1 PCT/EP2004/007963 EP2004007963W WO2005015319A1 WO 2005015319 A1 WO2005015319 A1 WO 2005015319A1 EP 2004007963 W EP2004007963 W EP 2004007963W WO 2005015319 A1 WO2005015319 A1 WO 2005015319A1
Authority
WO
WIPO (PCT)
Prior art keywords
toner
glass
matrix
substrate
toner according
Prior art date
Application number
PCT/EP2004/007963
Other languages
German (de)
English (en)
Inventor
Bernd Schultheis
Holger Köbrich
Harry Engelmann
Jose Zimmer
Original Assignee
Schott Ag
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 Schott Ag filed Critical Schott Ag
Publication of WO2005015319A1 publication Critical patent/WO2005015319A1/fr

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/09—Colouring agents for toner particles
    • G03G9/0926—Colouring agents for toner particles characterised by physical or chemical properties
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/09—Colouring agents for toner particles
    • G03G9/0902—Inorganic compounds
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/097—Plasticisers; Charge controlling agents
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/097—Plasticisers; Charge controlling agents
    • G03G9/09708—Inorganic compounds
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/097—Plasticisers; Charge controlling agents
    • G03G9/09733—Organic compounds

Definitions

  • the invention relates to a toner which can be transferred to a metal, glass, glass ceramic or ceramic substrate or the like substrate of high temperature resistance and / or burned in a subsequent temperature process by means of electrophotographic printing processes or electrostatic coating processes and the ceramic and / or glassy particles contains a mixture of glass frits and a plastic toner matrix.
  • the invention further relates to a toner which can be transferred to a plastic substrate or similar substrate of low temperature resistance by means of electrophotographic printing processes or electrostatic coating processes and which contains organic ingredients and a toner matrix made of plastic, which in turn can contain ceramic and / or glassy particles.
  • the invention relates to a toner which can be transferred to a substrate by means of a screen printing process and which contains organic ingredients and a screen printing paste as a toner matrix.
  • DE 44 13 168 A1 shows ceramic, i.e. non-metallic, inorganic color compositions for decorating ceramic and glass products, which are applied to a paper support as a transfer agent in the electrophotographic reproduction process.
  • the paper backing is coated with gum arabic, polyvinyl acetate or wax.
  • the coloring substances copied onto the paper support are burned into the glassy or ceramic surface after being applied to the object to be printed.
  • the paper carrier burns. This indirect printing process is cumbersome and a completely residue-free burning of the paper carrier is not always guaranteed. These residues often lead to rejects.
  • the ceramic colors specified in these publications are specially designed for the decoration of ceramic articles. The colors cannot be used on special glass, glass ceramics and glasses with low thermal expansion.
  • toners with colored pigmentations are always used in order to enable color transfer to a substrate.
  • Substrates coated or printed in this way can be used in areas, for example in the kitchen or in the sanitary area, which are exposed to increased microbial attack.
  • the conventional toners offer no protection against this.
  • glass substrates are known from the prior art which can have an antimicrobial effect.
  • antimicrobial glasses have a biocidal effect and can also have a bacteriocidal and / or fungicidal and / or alkicidal effect.
  • Glasses of this type are also used in powder or fiber form or in the form of fine particles in order to kill unwanted microorganisms. In this capacity, they can be added to products such as paints, varnishes or polymer materials. They can also have anti-inflammatory, wound healing and light absorbing and light scattering properties.
  • glass is understood to mean non-metallic organic glasses and glass ceramics
  • ceramic materials are understood to mean non-metallic inorganic materials such as glasses, glass ceramics, ceramics and corresponding composites. This definition should also apply in particular in connection with the toner according to the invention.
  • the glass frits or the glass portion of the toner have been transferred to a metal, glass, glass ceramic or ceramic substrate or similar substrate of high temperature resistance and / or burned in a subsequent temperature process by means of electrophotographic printing processes or electrostatic coating processes can, biocidal or antimicrobial effect.
  • a coating or a print can be applied in the electrophotographic printing process that is largely protected against microbial attack.
  • the glass portion can have an antimicrobial glass that contains one or more components made of AgO, ZnO, CuO, SnO, I.
  • the usual concentration, for example of AgO is 0 to 10% by weight, preferably between 0 to 5% by weight, and particularly preferably between 0 to 2% by weight, whereas the usual concentration, for example of ZnO, is 0 to 40% by weight, preferably between 0 to 20 wt%, and particularly preferably between 0 to 10 wt%.
  • the antimicrobial glass can comprise a silicate glass with the network former Si0 2 , a phosphate glass with the network former P 2 O ⁇ or a borate glass with the network former B 2 O 3 , each of which has at least one of the components Na 2 0, Li 2 O, K 2 0 , P 2 O 5 , B 2 0 5 , CaO, BaO, SO 3 , MgO, Al 2 0 3 contain.
  • the toner can in particular have a thermoplastic plastic matrix that melts homogeneously on the substrate in the temperature range from 100 ° C. to 400 ° C. and evaporates and / or burns out almost without residue in the temperature range from 300 ° C. to 500 ° C. With such a matrix, the toner is suitable for processing in the electrophotographic printing process.
  • At least some of the organic constituents of the toner which is to be transferred to a plastic substrate or similar substrate of low temperature resistance by means of electrophotographic printing processes or electrostatic coating processes, can have a biocidal or antimicrobial effect.
  • At least some of the organic ingredients in the toner that are to be transferred to a substrate by means of a screen printing process can have a biocidal or antimicrobial effect.
  • the part of the organic ingredients with biocidal activity can be Triclosan® from Ciby Geigy or a similar antimicrobial ingredient.
  • Silver-filled zeolites can also be included as a filler for plastic. The effective Ag + ions are released and released relatively slowly, so that the biocidal effect of the plastics and plastic products they contain is retained for a long time.
  • the toner matrix can have a thermosetting or thermoplastic plastic matrix that can be fixed on the surface of the substrate at temperatures ⁇ 200 ° C. Melting or even fusing with the substrate material is not necessary here.
  • thermosetting plastic matrix can be fixed on the surface of a substrate preheated in the temperature range ⁇ 200 ° C. in a hot transfer process and simultaneously cured. Additional heating for post-curing is not necessary.
  • thermosetting plastic matrix which was fixed on the substrate surface in a previous method step, can also be post-cured in the temperature range from 100 ° C. to 200 ° C. on the substrate surface.
  • the plastic matrix has toner resins based on acrylate, in particular styrene acrylate, polymethyl methacrylate. These substances are easy to process during toner production and have good adhesion to the substrate. In addition, these substances burn without residue.
  • the influence of the depolymerization, the melting, the evaporation and / or decomposition temperature can be selected by choosing different polymers for the plastic matrix can be achieved.
  • Suitable materials have proven to be polyvinyl alcohol, polyoxymethylene, styrene copolymers, polyvinylidene fluoride, polyvinyl butyral, polyesters (unsaturated and / or saturated or mixtures thereof), polycarbonate, polyvinyl pyrrolidone, vinyl imidazole copolymers and polyethers.
  • the toner can additionally contain charge control substances and / or oxidizing agents in a known manner to improve the image transfer or to decompose the organic without residues.
  • the added oxidants accelerate the thermal decomposition of the plastic matrix.
  • the toner is additionally coated with additives to improve the wetting when the toner melts on the generally relatively polar and smooth, unlike paper, non-absorbent surface.
  • additives to improve the wetting when the toner melts on the generally relatively polar and smooth, unlike paper, non-absorbent surface.
  • the polarity of the toners between non-polar, hydrophobic, neutral, polar, hydrophilic, and thus the wetting of the substrates can be controlled via a suitable choice of known additives.
  • Known flow aids such as aerosils and transfer aids can be used to improve the quality of the print.
  • the proportion of such auxiliaries is between 0 and 1.0% by weight, typically between 0.2 and 0.5% by weight.
  • peroxides or azo compounds can be added to the toner, but these have decomposition temperatures> 150 ° C., so that the decomposition does not start during the melting phase (fixing phase).
  • inorganic additives are also possible, for example catalytically active pigments, which accelerate the decomposition of the organic plastic matrix.
  • the toner particles can have an irregular shape and can only be partially enveloped by the plastic matrix.
  • the toner also contains coloring pigments. This means that a print or a coating is achieved not only with anti-microbial but also with decorative properties.
  • FIG. 1 shows a schematic side view of a toner particle with ceramic, antimicrobial particles
  • FIG. 2 shows a schematic side view of a toner particle with organic, antimicrobial ingredients
  • Fig. 3 is a schematic side view and in section of a glass substrate with baked ceramic toner
  • Fig. 4 in a schematic side view and in section a plastic substrate with organic toner fixed thereon.
  • FIG. 1 shows a schematic side view of a toner particle with ceramic, biocidally active or antimicrobial particles 10, which are contained in a toner plastic matrix 12 are embedded by the toner manufacturing process.
  • the toner matrix 12 consists, for example, of a styrene-acrylate compound or of a polyester compound.
  • the toner particle shown can be transferred to a (not shown) metal, glass, glass ceramic or ceramic substrate or similar substrate of high temperature resistance by means of electrophotographic printing or electrostatic coating and / or baked in a subsequent temperature process.
  • the ceramic particles 10 consist of a mixture of glass frits, in which at least one component has a biocidal effect.
  • biocidal glass components can be contained in the toner particle.
  • the glass portions can be mixed, melted and ground again in a preparatory state, or can be contained in the toner matrix 12 in a mixture with biologically inactive glass frits.
  • the glass portion can contain an antimicrobial ceramic material.
  • Color pigments typically include inorganic compounds, such as metal oxides, mixed phases metal oxide pigments or CIC pigments (complex inorganic color pigments), inclusion pigments, metal powders or flakes, metal colloids, pearlescent or luster pigments based on mica or glassy or SiO 2 - or Al 2 O 3 platelets, fluorescent pigments, magnetic pigments, anticorrosive pigments, transparent pigments, sintered pigments and / or mixtures of pigments with glass frits, pigments for four-color types, etc. or mixtures of the abovementioned variants which have already been adequately described in the literature (for example "Ullmann's Encyclopedia of Industrial Chemistry", Vol. A20, 1992, VCH Publishers , Inc.).
  • FIG. 2 shows a schematic side view of a toner particle with biocidally active organic substances 18 which are embedded or dissolved in a toner matrix 12 made of plastic by the toner manufacturing process.
  • the toner matrix 12 consists, for example, of a styrene-acrylate compound or of a polyester compound.
  • the toner matrix 12 can exhibit both thermoplastic and thermosetting material behavior.
  • the toner particle shown is suitable for an electrophotographic printing process or for an electrostatic coating process on a plastic substrate or the like substrate of low temperature resistance.
  • the biocidal substances can be both inorganic glasses or organic ingredients 18 which are at least partially fused or dissolved in an extrusion process during the toner production.
  • An example of this is Triclosan®, which Ciba Geigy offers as an antimicrobial additive.
  • FIG. 3 shows a schematic side view and in section of a coated glass substrate 20 onto which the ceramic toner has been burned in by means of a firing process at high temperature. All that remains essentially are the ceramic particles 10, which are at least partially fused to the substrate, here glass.
  • the toner matrix of the toner used here has a thermoplastic plastic matrix which melts homogeneously on the substrate 20 in the temperature range from 100 ° C. to 400 ° C. and in the temperature range from 300 ° C. to 500 ° C evaporates and / or burns out almost completely.
  • the ceramic particles 10 melt in a further temperature step at typically 500 to 700 ° C. and thereby bond to the substrate.
  • FIG. 4 shows a schematic side view and in section of a plastic substrate 30 with organic toner fixed thereon, as has already been described with reference to FIG. 2.
  • the organic toner was only melted by a thermal fixing process at a low temperature. Remaining essentially all components of the organic toner, namely the flow aid 16, the internal charge control agents 14, the toner matrix 12 and the organic, antimicrobial ingredients 18.
  • the substrates 30 can also be coated preheated, a subsequent temperature treatment being unnecessary.
  • An antimicrobial toner can be used for the following purposes: antimicrobial glasses / glass ceramics, for example for domestic appliance applications, refrigerator shelves, glass surfaces in food display applications, vending machines, disinfection devices, glass cutting boards, sink covers. Oven front panes, control panels, glass ceramic cooktops, glass hobtops, fitness equipment, medical devices, display surfaces, touch screens, furniture glass, glass tiles in the sanitary area, doors etc. antimicrobially effective plastic surfaces, for example additionally for worktops, etc. antimicrobially effective ceramic surfaces or enamel surfaces, for example for floor and / or wall tiles, sanitary objects, etc.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Printing Methods (AREA)

Abstract

L'invention concerne un toner pouvant être transféré sur un substrat en métal, verre, vitrocéramique ou céramique ou équivalent de grande résistance aux températures élevées par un procédé d'impression électrophotographique ou un procédé de revêtement électrostatique et/ou pouvant être cuit dans une procédé thermique consécutif. L'invention concerne également un toner pouvant être transféré, par un procédé de revêtement électrostatique ou un procédé de sérigraphie, sur un substrat en plastique ou équivalent de plus faible résistance aux températures élevées et contenant les constituants organiques (18) et une matrice de toner (12) en plastique. Au moins une partie des fibres de verre fritté ou une partie des constituants organiques (18) doit avoir une action biocide.
PCT/EP2004/007963 2003-08-09 2004-07-16 Toner WO2005015319A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10336678.4 2003-08-09
DE2003136678 DE10336678A1 (de) 2003-08-09 2003-08-09 Toner

Publications (1)

Publication Number Publication Date
WO2005015319A1 true WO2005015319A1 (fr) 2005-02-17

Family

ID=34129526

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/007963 WO2005015319A1 (fr) 2003-08-09 2004-07-16 Toner

Country Status (2)

Country Link
DE (1) DE10336678A1 (fr)
WO (1) WO2005015319A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110086301A1 (en) * 2009-10-08 2011-04-14 Xerox Corporation Emulsion aggregation toner composition
WO2013043475A1 (fr) 2011-09-19 2013-03-28 Eastman Kodak Company Protection antibactérienne et antifongique pour image en toner
WO2014166598A3 (fr) * 2013-04-08 2015-01-22 Audi Ag Procédé de fabrication d'un élément de commande et élément de commande
US11840646B2 (en) 2021-11-09 2023-12-12 Xerox Corporation Printed surfaces with antimicrobial properties

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4439510A (en) * 1980-12-11 1984-03-27 Research Holdings Pty Limited Method for the production of dry toner for electrostatography using interfacial polycondensation techniques
EP0751434A2 (fr) * 1995-06-26 1997-01-02 Ricoh Company, Ltd Méthod de production d'images colorées en utilisant un révélateur inorganique, révélateur inorganique pour le développement d'images électrostatiques, et médium de transfert d'images portant une image colorée
JPH09106094A (ja) * 1995-10-12 1997-04-22 Matsushita Electric Ind Co Ltd トナーと現像剤と画像形成装置
US5966571A (en) * 1996-12-24 1999-10-12 Agfa-Gevaert, N.V. Method for electrostatographically producing master images for decoration of ceramic objects
US5976736A (en) * 1996-12-05 1999-11-02 Ricoh Company, Ltd. Toner composition and use thereof for forming sintered pattern on solid surface
US6165655A (en) * 1996-12-05 2000-12-26 Ricoh Company, Ltd. Toner composition and use thereof for forming sintered pattern on solid surface
EP1160293A2 (fr) * 2000-05-31 2001-12-05 Orient Chemical Industries, Ltd. Composition contenant un complexe métallique de composé monoazoique et méthode pour sa préparation
WO2003058351A1 (fr) * 2002-01-08 2003-07-17 Schott Glas Toner ceramique pour impression electrophotographique

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10200412A1 (de) * 2002-01-08 2003-07-24 Schott Glas Keramischer Toner für elektrofotographischen Druck
DE10235571A1 (de) * 2002-08-03 2004-02-12 Clariant Gmbh Verwendung von Salzen schichtartiger Doppelhydroxide als Ladungssteuermittel

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4439510A (en) * 1980-12-11 1984-03-27 Research Holdings Pty Limited Method for the production of dry toner for electrostatography using interfacial polycondensation techniques
EP0751434A2 (fr) * 1995-06-26 1997-01-02 Ricoh Company, Ltd Méthod de production d'images colorées en utilisant un révélateur inorganique, révélateur inorganique pour le développement d'images électrostatiques, et médium de transfert d'images portant une image colorée
JPH09106094A (ja) * 1995-10-12 1997-04-22 Matsushita Electric Ind Co Ltd トナーと現像剤と画像形成装置
US5976736A (en) * 1996-12-05 1999-11-02 Ricoh Company, Ltd. Toner composition and use thereof for forming sintered pattern on solid surface
US6165655A (en) * 1996-12-05 2000-12-26 Ricoh Company, Ltd. Toner composition and use thereof for forming sintered pattern on solid surface
US5966571A (en) * 1996-12-24 1999-10-12 Agfa-Gevaert, N.V. Method for electrostatographically producing master images for decoration of ceramic objects
EP1160293A2 (fr) * 2000-05-31 2001-12-05 Orient Chemical Industries, Ltd. Composition contenant un complexe métallique de composé monoazoique et méthode pour sa préparation
WO2003058351A1 (fr) * 2002-01-08 2003-07-17 Schott Glas Toner ceramique pour impression electrophotographique

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 199726, Derwent World Patents Index; Class G08, AN 1997-286273, XP002296817 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110086301A1 (en) * 2009-10-08 2011-04-14 Xerox Corporation Emulsion aggregation toner composition
US8383311B2 (en) * 2009-10-08 2013-02-26 Xerox Corporation Emulsion aggregation toner composition
WO2013043475A1 (fr) 2011-09-19 2013-03-28 Eastman Kodak Company Protection antibactérienne et antifongique pour image en toner
WO2014166598A3 (fr) * 2013-04-08 2015-01-22 Audi Ag Procédé de fabrication d'un élément de commande et élément de commande
CN105163973A (zh) * 2013-04-08 2015-12-16 奥迪股份公司 用于制造操作元件的方法和操作元件
US9663399B2 (en) 2013-04-08 2017-05-30 Audi Ag Method for producing a control element and control element
US11840646B2 (en) 2021-11-09 2023-12-12 Xerox Corporation Printed surfaces with antimicrobial properties

Also Published As

Publication number Publication date
DE10336678A1 (de) 2005-03-17

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