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
  • B41M5/52—Macromolecular coatings
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B44—DECORATIVE ARTS
  • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
  • B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
  • B44C1/16—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like
  • B44C1/165—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like for decalcomanias; sheet material therefor
  • B44C1/17—Dry transfer
  • B44C1/1712—Decalcomanias applied under heat and pressure, e.g. provided with a heat activable adhesive
• • 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
  • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
  • D06P1/0004—General aspects of dyeing
  • D06P1/0012—Effecting dyeing to obtain luminescent or phosphorescent dyeings
• • 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
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06Q—DECORATING TEXTILES
  • D06Q1/00—Decorating textiles
  • D06Q1/12—Decorating textiles by transferring a chemical agent or a metallic or non-metallic material in particulate or other form, from a solid temporary carrier to the textile
• • 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

Definitions

• the present invention relates to a phosphorescent Material made using transfer systems resp. Transfer procedures for digital data, in particular Images and texts, such as laser lettering and in particular Ink-jet printer that can be labeled and printed on.
• Transfer systems resp. Transfer procedures or transfer technologies are subsequently called digital image transfer systems resp. -Procedure -technologies.
• Coatings for Textiles, bicycles etc. Increase such coatings the visibility of the appropriately coated objects in the dark. They are usually using printing processes such as screen printing, etc. applied.
• the stand's phosphorescent layers technology have various disadvantages. Since the phosphorescent materials under light irradiation show only slight intrinsic color, their contrast is on light background, e.g. during the day or in a well lit area Space, very small. In addition, such layers usually applied by screen printing, i.e. every "motif" needs an appropriate template. At Combination of phosphorescent materials with usual Colors do not have the disadvantage of poor contrast on a light surface when exposed to light but different colors require a corresponding one Number of stencils.
• the aim of the present invention was therefore to one with digital printing process, respectively. corresponding Techniques printable resp. writable phosphorescent Provide material.
• the one Carrier layer and a color receiving layer includes and which is characterized in that the ink receiving layer contains a phosphorescent pigment.
• a material according to the invention has good ink receptivity and the phosphorescence of such a layer through the digitally applied layer of paint can be covered, making a clear in the dark A light-dark picture emerges.
• the ink receiving layer can be a homogeneous Layer or from layers lying on top of each other be built up, with a sub-layer, preferably the the sublayer closer to the support, the phosphorescent Contains pigment.
• the ink-receiving layer comprises porous solid particles in a binder.
• porous particles are, for example, ceramic parts, such as zeolites, or plastic particles, it being possible for such particles to be obtained directly by a special production process or by subsequent shrinking or agglomeration.
• Preferred porous particles are porous, solid thermoplastics.
• Such particles preferably have a specific surface area of> 6 m 2 / g, in particular 20 20 m 2 / g, a particle size of 0.1-40 ⁇ m, in particular 5-15 ⁇ m, and a melting temperature of ⁇ 200 ° C.
• Thermoplastics such as the products known under the name Orgasol, in particular Orgasol® 3501 from, for example, Elf Atochem, Pouteaux, France, with a particle diameter of approximately 10 ⁇ m and a surface area of approximately 25 m 2 / g are particularly preferred.
• Ceramic particles used like Zeolite these are preferably in combination with porous solid thermoplastics such as Orgasol® 3501.
• the ink receptive layer is made up of partial layers constructed, 2 sublayers being preferred, see above deep-melting porous particles are strongly preferred because these become transparent when they melt.
• porous Particles can either only in one sub-layer, preferably the sublayer without phosphorescent Pigment, or be present in both sub-layers.
• the presence is for quick color absorption porous particles in the layer facing away from the carrier prefers.
• the binder is also porous. Increased by such Porosity can local fluid intake, be it ink or pigment melt, increase what a better penetration of the entire layer with pigment and clear contours.
• a manufacturing process a porous binder layer is e.g. from EP 0 850 786 known.
• the binder can be a thermoplastic Resin, if necessary after heating once and activation further networked or one already complete cross-linked, thermosetting resin.
• suitable binder e.g. according to the purpose of the printed resp. labeled according to the invention Materials.
• Preferred binders, especially for Transfer materials include polyvinyl alcohols, polyvinyl acetates, Polyvinylpyrrolidones, cross-linked, linear polyurethanes and especially preferred polyamides for which Transfer to e.g. Cotton t-shirts, especially thermoplastics with melting point ⁇ 200 ° C, especially ⁇ 140 ° C.
• the ink-receiving layer usually has a proportion of binder of 10 to 90% by weight, preferably 20-70% by weight, particularly preferably approximately 30% by weight, of porous particles of 5 to 85% by weight, preferably approximately 35 wt .-% and phosphorescent pigment from 5 to 60 wt .-%, preferably about 35 wt .-%. It is applied to the support in amounts of (in the dried state) 5 to 80 g / m 2 .
• the phosphorescent according to the invention Materials include transfer layers, e.g. for the Transmission of images, i.e. the ink receptive layer, on a substrate.
• transfer layers e.g. for the Transmission of images, i.e. the ink receptive layer, on a substrate.
• substrates are e.g. Fabrics, knitted fabrics, Nonwovens, especially textiles like T-shirts, however also objects such as doors, bicycles etc.
• Transfer layers comprise the phosphorescent layers according to the invention Materials also "fixed" materials, i.e. Materials with the ink-receptive layer on the Carrier layer remains.
• Fixed materials are relatively uncritical and can be a variety of different substrates , provided that their flexibility and the Liability of the ink absorption layer for the implementation of the Printing process is sufficient.
• To increase liability can optionally be a surface treatment of the carrier or an adhesion promoter layer between the carrier and the ink receiving layer can be provided.
• ink absorption layer especially the binder critical as long as there is sufficient access to the porous Solid particles allowed.
• color pigments may be advantageous be a e.g. thermally post-crosslinking thermoplastic
• binders that melt the porous particles loaded with color pigments and at least partially "sealed". It lies of course also in the context of this invention printed resp. labeled ink absorption layer through subsequent application of a cover, e.g. a slide, secure against mechanical damage, e.g. at Use as signs, such as floor labels, fittings or keyboard names etc.
• transfer materials with at least the ink-receptive layer on a substrate, e.g. a textile that is transferred.
• Non-phosphorescent transfer materials are known and described for example in EP 0 850 786.
• Such layer systems are basically also for the phosphorescent materials of this invention are suitable provided they are porous in the ink-receptive layer Contain solid particles, so this layer with phosphorescent pigment can be provided without that problems with only partial coverage of the Phosphorescence through the applied image resp. the angry one Lettering is achieved.
• a "show through” The phosphorescence could be the clear statement of the dark visible image affect what in particular with important inscriptions, e.g. of emergency exits, could have undesirable consequences.
• Such transfer materials must have sufficient flexibility and sufficient adhesion of the ink-receiving layer to the support layer during printing or. Labeling also have good transfer properties, ie, for example, good removability of the carrier layer after heat treatment, for example ironing or hot lamination of the transfer material lying on the substrate with the ink-receptive layer, for example a textile.
• This separation of carrier and ink-receiving layer can be improved, for example, by a release layer between the carrier layer and ink-receiving layer, for example a silicone layer and / or a layer of a low-melting thermoplastic polymer, such a release layer of a low-melting thermoplastic polymer simultaneously providing a protective film over that on a substrate trained transfer ink layer and stabilize it.
• a release layer made of a deep-melting thermoplastic polymer has a melting point which corresponds approximately to the melting point of the binder in the ink-receiving layer.
• the release layer is usually applied in amounts of 5 to 50 g / m 2 (based on dry substance).
• a carrier material preferred for the transfer system is a siliconized paper on one side with a basis weight in the range of 50-150 g / m 2 .
• the phosphorescent ink absorption layer can be easily made by powdered phosphorescent pigment with the other components the ink-receiving layer or a partial layer of the ink-receiving layer mixed and the resulting mixture to an optionally pretreated or pre-coated Carrier applied by the usual method becomes.
• the use of the phosphorescent materials the present invention is very versatile. As already mentioned, these can be used for signaling e.g. Emergency exits, fire extinguishers etc. are used, but also for the designation of operating systems, their Safe operation also important, or especially in the event of a power failure is.
• Example 1 Production of a transfer film:
• the dispersion for the hot melt layer (release layer) is applied to the silicone side of a one-sided siliconized adhesive paper (120 g / m 2 ) by means of a coating process, for example reverse roll, and then dried at a temperature of approximately 110 ° C. The dry application should be approximately 30 g / m 2 .
• the dispersion is prepared for the porous hot melt layer (ink absorption layer).
• portions of the polyamide powder (point 2), the phosphorescent pigment (point 3) and the diluent (point 4) are alternately stirred into the binder solution (point 1) under dispersing conditions until a coating of suitable viscosity that can be coated with coating methods, e.g. Reverseroll, is mixed arises.
• the polyamide powder (point 2) and the phosphorescent pigment (point 3) can be mixed in advance and this mixture can be stirred in in portions, alternating with the diluent (point 4).
• the dispersion for the porous hot melt layer (ink absorption layer) is then applied to the hot melt layer (release layer / 1st step) by means of a coating method, for example reverse roll, and is dried at a temperature of approximately 60-110 ° C.
• the dry application should be about 30 g / m 2 .
• the solids content of the binder, based on the porous hot melt layer is preferably around 30% by weight, the proportion of microporous particles is around 35% by weight and the proportion of phosphorescent pigment is around 35% by weight.
• Such a layer has a good mechanical Stability and porosity and can be done with digital Print and label image transfer systems well, but it can also be used with common painting aids such as aqueous and solvent-based crayons, water colors and wax crayons similar to ordinary paper be painted.
• the transfer to a substrate like white and colorful cotton t-shirts are done with the iron about 160 ° C to 200 ° C (heat setting for cotton).
• the hot melt material is printed with the resp. labeled Put the side against the T-shirt and the desired one Position.
• the iron With the iron, the paper back brushed thoroughly under strong pressure so that the color can fuse with the layer and this combines with the fabric.
• the adhesive paper deducted. Then several can Washing processes in a washing machine with common detergents be performed. The phosphorescent pigment and the colors showed good fastness to washing.
• the transfer can also be carried out using a hot laminator on e.g. a large-area textile, e.g. on Banner, done.
• Example 2 The procedure is as described in Example 1, the ink-receiving layer directly (without release layer) is applied to the carrier. There with no transferability required for a "fixed" material is, the material used as a carrier does not need the To have separation-promoting layers, e.g. one to this Purpose of not using siliconized paper, Rather, depending on the requirements, an adhesion promoter can be used.

Landscapes

• Textile Engineering (AREA)
• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• General Chemical & Material Sciences (AREA)
• Decoration By Transfer Pictures (AREA)
• Ink Jet Recording Methods And Recording Media Thereof (AREA)
• Inks, Pencil-Leads, Or Crayons (AREA)
• Thermal Transfer Or Thermal Recording In General (AREA)
• Laminated Bodies (AREA)
• Luminescent Compositions (AREA)
• Road Signs Or Road Markings (AREA)
• Making Paper Articles (AREA)

Priority Applications (5)

Applications Claiming Priority (1)

Publications (2)

Family

ID=8168338

Family Applications (1)

Country Status (5)

Cited By (1)

Citations (6)

• 2000
  • 2000-03-30 AT AT00107002T patent/ATE303907T1/de not_active IP Right Cessation
  • 2000-03-30 EP EP00107002A patent/EP1138525B1/fr not_active Expired - Lifetime
  • 2000-03-30 DE DE50011111T patent/DE50011111D1/de not_active Expired - Fee Related
• 2001
  • 2001-03-19 AU AU39475/01A patent/AU3947501A/en not_active Abandoned
  • 2001-03-19 WO PCT/IB2001/000403 patent/WO2001072532A1/fr not_active Ceased

Patent Citations (7)

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