Classifications

• • G—PHYSICS
  • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
  • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
  • G03G7/00—Selection of materials for use in image-receiving members, i.e. for reversal by physical contact; Manufacture thereof
  • G03G7/0053—Intermediate layers for image-receiving members
• • 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
  • B41M5/5254—Macromolecular coatings characterised by the use of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. vinyl polymers
• • 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
  • D21H19/36—Coatings with pigments
  • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
  • D21H19/56—Macromolecular organic compounds or oligomers thereof obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • D21H19/58—Polymers or oligomers of diolefins, aromatic vinyl monomers or unsaturated acids or derivatives thereof
• • G—PHYSICS
  • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
  • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
  • G03G15/00—Apparatus for electrographic processes using a charge pattern
  • G03G15/65—Apparatus which relate to the handling of copy material
  • G03G15/6588—Apparatus which relate to the handling of copy material characterised by the copy material, e.g. postcards, large copies, multi-layered materials, coloured sheet material
  • G03G15/6591—Apparatus which relate to the handling of copy material characterised by the copy material, e.g. postcards, large copies, multi-layered materials, coloured sheet material characterised by the recording material, e.g. plastic material, OHP, ceramics, tiles, textiles
• • G—PHYSICS
  • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
  • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
  • G03G7/00—Selection of materials for use in image-receiving members, i.e. for reversal by physical contact; Manufacture thereof
  • G03G7/0006—Cover layers for image-receiving members; Strippable coversheets
  • G03G7/002—Organic components thereof
  • G03G7/0026—Organic components thereof being macromolecular
  • G03G7/004—Organic components thereof being macromolecular obtained by reactions only involving carbon-to-carbon unsaturated bonds
• • G—PHYSICS
  • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
  • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
  • G03G2215/00—Apparatus for electrophotographic processes
  • G03G2215/00362—Apparatus for electrophotographic processes relating to the copy medium handling
  • G03G2215/00443—Copy medium
  • G03G2215/00523—Other special types, e.g. tabbed
  • G03G2215/00527—Fabrics, e.g. textiles

Definitions

• the invention relates to a paper for thermal image transmission on flat porous surfaces such as textiles.
• a disadvantage of this transfer paper is the silicone coating. During the removal process after the image transfer, in which the silicone-coated paper is peeled off from the textile base, silicone residues stick to the fibers of the textile base. Furthermore, the fastness to washing of the images transferred to the textile material is unsatisfactory.
• DE 42 10 976 A1 also relates to methods for transferring images on print templates to fabrics, this publication being a print template describes, which either consists of siliconized paper, and therefore has the disadvantages described above, or the print template is coated with a mixture of ethylene / vinyl acetate and paraffin wax. With regard to the detachment process after the image transfer, the printing templates coated with paraffin also proved to be disadvantageous.
• EP 0 479 882 A1 describes a method and the associated transfer paper for transferring representations to a porous base, the paper consisting of coated, embossed paper containing a PE layer.
• the images to be transferred are printed on the paper by dry copying and then transferred to the textile base by the action of heat and pressure.
• a disadvantage of the transfer paper is the insufficient color density of the images transferred onto the base with the aid of this paper.
• EP 0 466 503 A1 describes an image carrier for use in image transmission methods made of a flexible web material and two layers applied thereon.
• the first layer formed directly on the sheet material is a polymeric layer based on ethylene or an acrylic varnish
• the second layer formed on the first layer is a thermoplastic layer.
• paper for thermal image transfer to flat porous surfaces characterized by a paper support and a layer formed thereon, which contains an ethylene copolymer or an ethylene copolymer mixture and a dye-receiving layer.
• the ethylene copolymer contains in particular 10 to 35 mol% of another monomer.
• the ethylene copolymer can in particular be an ethylene / vinyl acetate copolymer or an ethylene / (meth) acrylic acid alkyl ester copolymer. A mixture of these copolymers can also be used.
• the content of the vinyl acetate or (meth) acrylic acid alkyl ester in the ethylene copolymer is 10 to 35 mol% in the particular embodiment of the invention.
• the ethylene / (meth) acrylic acid alkyl ester copolymer can be selected from the group of the following copolymers: ethylene / methyl / (meth) acrylate, ethylene / ethyl (meth) acrylate, ethylene / propyl (meth) acrylate, ethylene / n-butyl (meth ) acrylate or ethylene / isobutyl (meth) acrylate and mixtures of these.
• the layer containing the ethylene copolymer is extruded onto a carrier paper.
• the application weight of the layer is 10 to 50 g / m2. Before the Extrusion coating exposes the paper surface to a corona discharge.
• Any paper can be used as backing paper.
• a highly sized neutral base paper with a basis weight of 60 to 200 g / m2 is particularly suitable.
• the base paper can be surface-sized with starch or polyvinyl alcohol and has a surface smoothness of 20 to 300 Bekk on both sides. out.
• the dye-receiving layer applied to the layer containing an ethylene copolymer contains a polymer having a low film-forming temperature.
• This polymer can in particular be an acrylic acid ester copolymer, a styrene / butadiene or acrylonitrile / butadiene latex.
• acrylic acid ester copolymer a styrene / butadiene or acrylonitrile / butadiene latex.
• other polymers which have a good affinity for the dyes or toners used for printing can also be used.
• the dye-receiving layer can additionally contain an anti-adhesive.
• Finely divided silicas in particular an aluminum-doped finely dispersed silicic acid, are particularly suitable for this.
• the paper properties with regard to the stackability and the smooth, trouble-free passage during reproduction on the paper can be considerably improved if the dye-receiving layer additionally contains inorganic and / or organic pigments.
• Hollow or solid resin particles from the styrene family such as polystyrene, or from acrylic resin, such as polymethyl methacrylate, or resins from a styrene / acrylic acid (ester) copolymer are particularly suitable for this purpose.
• Starch which is to be regarded as a pigment, is also suitable because it is stirred directly into the coating solution and suspended in it.
• Suitable inorganic pigments are, for example, TiO2, CaCo3, ZnO, ZnS, ZnSO4, Sb2O3, CaSO4, kaolin, talc or mixtures thereof.
• the amount of pigment in the ink-receiving layer is 10 to 90% by weight, in particular 30 to 70% by weight, based on the dry layer.
• the properties mentioned are assessed by measuring a so-called friction coefficient. This is measured in a tensile test court based on the Frank principle.
• the use of the pigments in the dye-absorbing layer leads to friction coefficients of less than 4N.
• the friction coefficient is the force to be used to move the back of a sheet against the front.
• the dye-receiving layer is applied from an aqueous coating solution. All common application and dosing methods can be used for this.
• the application weight of the dye-receiving layer is 0.1 to 0.5 g / m2.
• the surface of the paper according to the invention can be created with the aid of non-impact processes, such as laser printers Print and copy with any motif that can then be transferred to all synthetic or natural fabrics, but also to other flat objects.
• the paper provided with a motif is brought into contact with a flat base. The transfer takes place through heat (130 - 180 ° C) and pressure (34.5 x 104N / m2), and only the backing paper is then removed from the base. The transferred image penetrates completely into the fibers of the base.
• the front of a neutral sized base paper with a basis weight of 80 g / m 2 was extrusion coated after corona pretreatment with the copolymers or copolymer mixtures given in the following table and then with an aqueous dispersion of a carboxylated styrene / butadiene copolymer (4.5% by weight Solids content) coated and dried (application weight 0.2 g / m2).
• Copolymer Composition % by weight 1a 1b 1c 1d 1e 1f Ethylene / vinyl acetate with 33 mol% vinyl acetate (ELVAX 150-W, Du Pont) 100 - - - - - - Ethylene / vinyl acetate with 28 mol% vinyl acetate (Evatane 28/40, Elf Atochem) - 100 - - - 25th Ethylene / vinyl acetate with 14 mol% vinyl acetate (Escorene Ultra 00714, Exxon) - - 100 - - - Ethylene / n-butyl acrylate with 35 mol% n-butyl acrylate (Enathene EA 80808, Quantum) - - - 100 - 75 Ethylene / methyl acrylate with 15 mol% methyl acrylate (Lotryl 15 MA 03, Elf Atochem) - - - - 100 -
• Papers coated in this way were provided with images in a copying process (laser printer) and then brought into contact with a textile base (fabric made of 100% cotton) in a press in which heat (180 ° C.) and pressure (34.5 ⁇ 104 N / m2) the images were transferred to the textile base. After the transfer, the paper base was peeled off.
• the printed textile underlay was washed at 30 ° C with conventional detergents and then examined.
• the paper coated with ethylene / vinyl acetate copolymer (28 mol% vinyl acetate) was coated with the following aqueous dispersions: Components Composition,% by weight 2a 2 B 2c 2d Acrylic acid ester / vinyl acetate / vinyl chloride copolymer 50% disp. (Acronal 300 D, BASF) 10th - 10th - Carboxylated acrylic acid ester 32% disp. (Carboset XPD 1242, Goodrich) - 15 - - Carboxyl. Styrene / butadiene latex, 50% disp.
• the coating compositions were applied to the surface to be coated using a scoop roller system, metered with a smooth doctor blade and dried in a hot air duct at air temperatures of approximately 80.degree.
• the machine speed was 100 m / min.
• the papers coated in this way were imaged in a copying process and then brought into contact with a textile base as in Example 1. After the image had been transferred, the paper backing was removed from the textile base.
• the printed textile underlay was washed at 30 ° C and then examined.
• a transfer paper produced according to EP 0 479 882 was provided with images as in Example 1 and used for image transfer to a textile base as in Example 1.
• the papers produced according to the examples were imaged using a laser printer and then brought into contact with a textile base. After the image had been transferred, the color density was measured on the printed textile base.
• the density measurements were made before and after a washing process with conventional detergents at 30 ° C.
• the device used for this was an original reflection densitometer SOS-45.
• the measurements were carried out for the basic colors yellow, cyan, magenta and black.

Landscapes

• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Engineering & Computer Science (AREA)
• Ceramic Engineering (AREA)
• Textile Engineering (AREA)
• Spectroscopy & Molecular Physics (AREA)
• Thermal Transfer Or Thermal Recording In General (AREA)
• Laminated Bodies (AREA)
• Paper (AREA)
• Heat Sensitive Colour Forming Recording (AREA)

Applications Claiming Priority (4)

Publications (2)

Family

ID=25936703

Family Applications (1)

Country Status (6)

Cited By (5)

Citations (4)

• 1995
  • 1995-05-05 DK DK95106784T patent/DK0683057T3/da active
  • 1995-05-05 EP EP95106784A patent/EP0683057B1/fr not_active Expired - Lifetime
  • 1995-05-05 AT AT95106784T patent/ATE162471T1/de not_active IP Right Cessation
  • 1995-05-05 ES ES95106784T patent/ES2111986T3/es not_active Expired - Lifetime
  • 1995-05-05 DE DE59501310T patent/DE59501310D1/de not_active Expired - Lifetime
• 1998
  • 1998-02-12 GR GR980400315T patent/GR3026142T3/el unknown

Patent Citations (4)

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