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
  • B41M5/025—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet
  • B41M5/0256—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet the transferable ink pattern being obtained by means of a computer driven printer, e.g. an ink jet or laser printer, or by electrographic means
• • 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
• • 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
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
  • D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
  • D06P5/003—Transfer printing
  • D06P5/007—Transfer printing using non-subliming dyes
• • 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
• • 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
• • 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
  • B41M5/5263—Macromolecular coatings characterised by the use of polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
  • B41M5/5272—Polyesters; Polycarbonates
• • 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
  • B41M5/5263—Macromolecular coatings characterised by the use of polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
  • B41M5/5281—Polyurethanes or polyureas

Definitions

• the present invention relates to a device with which printed images, especially those that are produced with an inkjet printer, on a dark one Textile substrate can be transferred.
• the system enables the application of Images by exposure to heat and pressure, such as an iron.
• US 5,501,902 discloses a printable material that consists of a first carrier layer consists on which a second layer of material is applied, which consists of a film-forming Binding material and particles of a thermoplastic polymer with Particle sizes up to max. 50 ⁇ m exists.
• the particles consist of polyolefins, polyesters and ethylene-vinyl acetate copolymers.
• the printable material can be designed that it can take ink jet images and by exposure to heat Textile substrate can be transferred.
• a Ink viscosity modifier added to achieve transferability to the
• the substrate contains a second layer of a cationic polymer, preferably then an additional melt transfer layer between the first carrier layer and the second Layer attached.
• the transfer sheet contains a carrier layer on which an intermediate layer made of a fusible material is attached, which is used for fixation on the substrate. Over the intermediate layer there is an ink-receiving layer on which in turn a layer of quaternary ammonium salt is applied, which serves to fix the ink.
• WO 98/30749 discloses an ink transfer system with a Carrier material, a melt transfer layer applied to the carrier material and at least one ink receiving layer thereon.
• the ink receiving layer contains a mixture of a highly porous filler and a binder, the Molecules of the filler to form chemical bonds with the Dye molecules of the ink are capable.
• Special highly porous fillers are used Polyamides are used, which are supposed to form a chemical bond with the dye.
• WO 00/73570 discloses an ink transfer system with a carrier material, one applied to the carrier material Melt transfer layer, a light background layer thereon, which the dark textile covered, and still at least one on it Ink receiving layer.
• the ink-receiving layer contains a mixture of one highly porous filler and a binder, the molecules of the filler for Ability to form chemical bonds with the dye molecules of the ink are.
• Special highly porous polyamides are used as fillers, which have a chemical Binding with the dye. It also contains the melt transfer layer dispersed spherical polyester particles with a grain size ⁇ 30 ⁇ m, the better Should cause adhesion to the contrast layer.
• the carrier material is used for application removed, the system with the melt transfer layer placed on the textile and after Place preferably baking paper on the ink receiving layer with the Iron melted the protective transfer layer.
• the object of the present invention is to provide such System.
• the system according to the invention thus has a structure in which on a carrier first a first melt transfer layer serving to connect to the textile substrate is appropriate. Since the carrier preferably during the application of the after Printing process received image on the textile substrate remains on the system and only then removed, the support must have some heat resistance. On Avoid melting or even decomposing the carrier during application. Therefore, the substrate must withstand the usual temperatures, which of the Applied devices, such as irons or special presses can be achieved. The heat resistance of the support must preferably be at values of 250 250 ° C.
• the backing must have adhesive properties (release properties), so that it can be easily detached from the associated layer.
• the supports used can be those based on paper, plastic or textile.
• suitable carrier materials include silicone paper, pseudosilicone paper (extra smooth, blanched papers), wax paper, baking paper and polyester. Siliconized paper or pseudosilicone paper is preferably used
• the first melt transfer layer contains plastic or consists entirely of it Plastic.
• the fusible plastic material connects to the fiber of the textile substrate represents, thus ensures the secure transfer and secure adhesion of the generated image.
• Suitable materials belong to the class of thermoplastics. You need to have a melting range that allows the material to be exposed to Heat that can be achieved with a conventional iron melts making the connection to the fiber. Generally, this range is at values of 60 to 140 ° C, preferably 70 to 120 ° C, especially 70 to 90 ° C.
• thermoplastics include Polyesters, polyurethanes, ethylene-vinyl acetate copolymers, polyamides such as Nylon, epoxies, polyacrylates, styrene-butadiene copolymers, nitrile rubber, Polyvinyl chloride, polyvinyl acetate, ethylene-acrylate copolymers and ethylene-acrylate copolymers combined with polyester.
• Preferred matrix materials are ethylene-acrylate copolymers and ethylene-acrylate copolymers combined with polyester.
• the ink absorption layer is then applied to the first melt transfer layer, which is used to hold the ink.
• the ink absorption layer has a matrix Plastic in which a filling material, generally in particle form, is embedded.
• the meltable plastic material used as the matrix material has Binding properties, thus serves as a binder for the filler particles.
• suitable Materials belong to the class of thermoplastics. You need one Have melting range that allows the material when exposed to Heat that can be achieved with a conventional iron melts and acts both as a binder for the filling material and the connection to the fiber manufactures. Generally, this range is from 100 to 220 ° C, preferably 120 up to 200 ° C, especially 130 to 180 ° C.
• thermoplastics include polyester, ethylene-vinyl acetate copolymers, Polyamides, nylon, epoxies, polyacrylates, styrene-butadiene copolymers, Nitrile rubber, polyvinyl chloride, polyvinyl acetate, ethylene-acrylate copolymers and Ethylene acrylate copolymers combined with polyester.
• Preferred matrix materials are Polyamides, ethylene-acrylate copolymers and ethylene-acrylate copolymers and ethylene-acrylate copolymers combined with polyester.
• Particularly suitable are nylon polyamides, for example, those under the trade name Elvamide® (Du Pont) to be expelled.
• the one present in the ink absorption layer, embedded in the matrix material Filling material is used to hold the surface of the system through the printer applied ink.
• This material is generally in the form of particles from the Matrix material are surrounded and fixed by this.
• Organic ones are suitable and inorganic fillers or combinations within these filler types or also of the two types with each other for use in accordance with the present invention. Suitable fillers must have appropriate ink absorption and compatibility with the matrix material.
• suitable organic fillers include melamine-formaldehyde resins, Polyacrylates, polymethacrylates, polyurethanes, crosslinked polyvinylpyrrolidone, polyamides, Formaldehyde resins and urea-formaldehyde resins.
• Type of filling material trade name Melamine-formaldehyde resin Pergopack®M (Martinstechnik GmbH, D-Bergheim) polyacrylate Decosilk® (Microchem, CH-Uetikon) polyurethane Decosoft® (Microchem, CH-Uetikon) Organic polymers (urea compounds) Cerafluor® 920 (Byk-Cera BV, NL-Deventer) polyvinylpyrrolidone PVPP (ISP, New Jersey, USA) polyvinylpyrrolidone Luvicross® M (BASF AG, D-Ludwigshafen) polyamide Orgasol® (Atochem SA, France)
• Crosslinked polyvinylpyrrolidone and. are preferably used organic fillers Polyamides.
• the organic fillers are in particle sizes of 1 to 50 ⁇ m, preferably 5 to 30 ⁇ m.
• inorganic fillers examples include silicon dioxide in various modifications, Al 2 O 3 , TiO 2 , BaSO 4 and aluminosilicates, preferably aluminosilicates and silicon dioxide.
• aluminosilicates preferably aluminosilicates and silicon dioxide.
• silica available under the name Klebosol® (Clariant) and CAB-O-SPERSE® (Cabot, USA), as well as aluminosilicates, which are also available under the name CAB-O-SPERSE®.
• the inorganic fillers are also in particle sizes from 1 to 50 ⁇ m, preferably 5 to 30 ⁇ m. However, smaller particle sizes can also be present. This is the case, for example, with fillers of the type Klebosol and CAB-O-SPERSE®, which are in particles with sizes from 1 to 100 nm.
• the ink absorption layer containing matrix material and filler has one Layer thickness of 20 to 100 microns, preferably 30 to 50 microns.
• Matrix material and filler are generally in a weight ratio (solid / solid) Matrix material / filler from 1: 1 to 1:10, preferably 1: 2 to 1: 5, in the Ink absorption layer used.
• the ink absorption layer is homogeneous and is applied in a single process step.
• the filler can be graded in such a way that whose concentration increases or decreases in one direction.
• grading the matrix material so that when using a Combination of two or more matrix materials the concentration of one or multiple materials decreases in one direction. In which direction such Concentration gradient will be chosen depends on various, the expert known factors, for example whether the application is reversed or normal (see below), the type of textile (e.g. cotton, cotton / PET blend, Nylon, synthetic leather etc.), the type of transmission (iron or press) or the im Inkjet printer used ink.
• the total thickness of the layers is in the range from 30 to 150 microns, preferably 50 to 100 microns, especially 30 to 80 microns.
• Transmission system a matting material available.
• This matting material is located on the surface of the ink absorption layer after the application of the printed system on a textile substrate facing the viewer. Will that printed system is therefore applied by the reverse process, so that is Matting material on the surface of the ink absorption layer covering the support is facing. If the image is applied in the normal process, that is Matting material on the surface of this layer facing away from the carrier.
• the matting material can be in the surface of the ink absorption layer be introduced, or be applied in an extra layer on this.
• the organic and inorganic materials that are also used as filler in the melt transfer ink absorption layer i.e. melamine-formaldehyde resins, polyacrylates, polymethacrylates, polyurethanes, cross-linked polyvinylpyrrolidone, polyamides, silicon dioxide in various modifications, Al 2 O, are used as matting materials 3 , TiO 2 , BaSO 4 and alumosilicates. When selecting the matting materials, care must be taken to select materials that are not fusible.
• one of the abovementioned inorganic fillers is preferred as the matting material used, especially synthetic amorphous silica, for example those under the Trade names Sylojet® P 412 (particle size 11.5 to 12.5 ⁇ m) and Sylojet® P 416 (Particle size 15 to 17 ⁇ m).
• the proportion of these fillers is in the area or in the layer in or in of these are used as matting materials, chosen so high that a matting effect is achieved.
• the fillers used as matting material can vary from to Ink absorption fillers used are different or even the same.
• These matting effects can also be achieved by using a carrier with a rougher finish Release surface can be reached, so that when it is subtracted a rough image surface arises.
• a contrasting layer is attached to the ink absorption layer serves to provide a light or white background, through which the image is Colors can develop properly.
• the dark background formed by the textile becomes covered.
• the contrast layer must be permeable to ink and must not or only minimally absorb so that the ink can completely penetrate the contrast layer before it captured by the ink absorption layer and the image is displayed.
• the Contrast layer contains an organic matrix material as well as bright pigments or White pigments that are used to create the contrast.
• the organic matrix material is a fusible material that is a connection to the pigments when melting also to the layers above and below the contrast layer.
• Suitable materials belong to the class of thermoplastics. You need to have a melting range that allows the material to act upon exposure of heat that can already be achieved with a conventional iron, melts and acts both as a binder for the pigment and the connection to the Fiber. In general, this range is preferably from 100 to 220 ° C. 120 to 200 ° C, especially 130 to 180 ° C.
• thermoplastics include polyester, ethylene-vinyl acetate copolymers, Polyamides, nylon, epoxies, polyacrylates, styrene-butadiene copolymers and Ethylene acrylate copolymers combined with polyester.
• Preferred matrix materials are Polyamides, ethylene-acrylate copolymers and ethylene-acrylate copolymers combined with Polyester.
• nylon polyamides are used, for example those under the Trade names Elvamide® distributed.
• pigments are suitable light-colored pigments known to the person skilled in the art, preferably so-called white pigments.
• white pigments preferably so-called white pigments.
• pigments must not absorb ink.
• Suitable pigments are TiO 2 in the form of anatase or rutile, ZnS, ZnO, BaSO 4 , so-called lithopones (mixture of ZnS and BaSO 4 ), CaCO 3 or CaO.
• the proportion of pigments in the contrast layer is up to 95% by weight, preferably 50 to 90% by weight, in particular 60 to 80% by weight.
• the particle size of the Pigments are generally in the range from 10 to 60 ⁇ m, preferably from 10 to 30 ⁇ m.
• melt transfer layer As a further mandatory layer there is a second layer above the contrast layer Melt transfer layer present. It is like the one on the carrier attached melt transfer layer, thereby a layer of a hot melt adhesive, which melts when exposed to heat and thereby a connection between textile and the transfer system to be applied.
• second melt transfer layer becomes one versus a transfer system with only one such a layer achieves improved adhesion.
• the second melt transfer layer which melts at higher temperatures than the first Melt transfer layer is made up of or contains at least one hot melt adhesive at least one hot melt adhesive.
• the melting point of the in the second melt transfer layer The adhesive used is therefore generally above the melting point of the Adhesive of the first melt transfer layer, at 80 to 180 ° C, preferably 80 up to 140 ° C, especially 100 to 120 ° C.
• the hot melt adhesive or the second melt transfer layer must be permeable to ink and must not absorb ink. Therefore, the hot melt adhesive must be hydrophobic as well like any other materials present in the second melt transfer layer. Hot melt adhesives with the desired properties are known to the person skilled in the art.
• the hot melt adhesive used in the second melt transfer layer is preferred a textile glue.
• Preferred materials of such textile adhesives are polyester, Polyurethane and styrene / butadiene latex.
• Styrene / butadiene adhesives of the name Reichhold® oil: Swift
• the transmission system with the usual, a specialist known methods. Generally they are used as matrix material used plastics dissolved in a suitable solvent. Is in the shift other material, such as a filler, the plastic and the Filler dissolved or suspended before mixing.
• suitable Solvents are known to a person skilled in the art and include water, alcohols, for example ethanol and isopropanol.
• Combinations of these solvents can also be used.
• Preferably an ethanol / water mixture can be used.
• An image is applied to the desired textile substrate as follows:
• the image created by the printer mirrored printed on the transmission system according to the invention is placed on the substrate with the second melt transfer layer on it rests. Subsequently, at temperatures at which the matrix material used plastic melts, the system applied to the substrate, preferably by ironing or with a special pressing device. The carrier above will pulled off after cooling (cold print), after which the printed image becomes visible.
• the Reversal is the preferred method of applying the invention Transfer systems to textiles.
• a so-called hot take-off can also be carried out.
• a thin layer of a substrate preferably plain paper, is used or siliconized paper, placed on the image obtained after the cold print.
• the melting point is used as the matrix material Plastic heated, for example by ironing.
• the substrate becomes fast deducted. In this way, a better connection between the textile substrate is generally achieved and the matrix material.
• the image is not printed in reverse (normal process).
• the application then happens as with the reversal process, in which case the carrier layer is then stripped off and the Transfer system with the side on which the carrier was located on the substrate is launched.
• the image is then applied by the action of Heat and pressure if necessary.
• a layer (layer thickness 30 ⁇ m) of polyamide to orgasol in a ratio of 1: 2 (solid / solid) dissolved in ethanol is applied to a melt transfer layer (hot-melt layer) according to the invention, and an ink-permeable contrast layer with a CaCO 3 / polyamide ratio of 1 is applied over it : 6 (solid / solid) with a layer thickness of 30 ⁇ m.

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Citations (5)

• 2002
  • 2002-08-19 EP EP02018167A patent/EP1391311A1/fr not_active Withdrawn
• 2003
  • 2003-08-08 CA CA002437142A patent/CA2437142A1/fr not_active Abandoned
  • 2003-08-15 US US10/641,294 patent/US20040100546A1/en not_active Abandoned
  • 2003-08-19 JP JP2003295490A patent/JP2004090641A/ja active Pending

Patent Citations (5)

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