EP1313907A1 - Decalque monocouche servant a decorer des textiles avec des motifs colores - Google Patents

Decalque monocouche servant a decorer des textiles avec des motifs colores

Info

Publication number
EP1313907A1
EP1313907A1 EP01915116A EP01915116A EP1313907A1 EP 1313907 A1 EP1313907 A1 EP 1313907A1 EP 01915116 A EP01915116 A EP 01915116A EP 01915116 A EP01915116 A EP 01915116A EP 1313907 A1 EP1313907 A1 EP 1313907A1
Authority
EP
European Patent Office
Prior art keywords
transfer
layer
coloured
weight
pattern layer
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Withdrawn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
EP01915116A
Other languages
German (de)
English (en)
Inventor
Kell Erik Franke
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.)
Reflex Holding AS
Original Assignee
Reflex Holding AS
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 Reflex Holding AS filed Critical Reflex Holding AS
Publication of EP1313907A1 publication Critical patent/EP1313907A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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

Definitions

  • the invention relates to a heat application transfer for decorating textiles and similar substrates with designs m the form of coloured patterns having good washing properties and durability, wherein the design is produced by means of a digitally controlled colour printer.
  • a number of available data-controlled colour printers of various types reproduce four-coloured raster images with a resolution of 600 dpi or more with an almost photographic appearance.
  • a pure silk screen-printing process it is not possible to achieve a resolution of more than 100 dpi, and consequently fine details are lost m the reproduction.
  • thermoplastic toners are partly absorbed into and partly smeared out on the adhesive layer.
  • a coloured pattern is usually applied from the transfer to a textile by heating to 130-200 °C, generally 160-190 °C, under pressure, and at this temperature the toners will melt to such a low viscosity that they pass through the thermoplastic adhesive layer and into the fabric whereby the image will be distorted and fine details lost.
  • This method is as mentioned designated a two layer transfer system because two layers are required onto the colour pattern layer.
  • the different layers normally will protrudes beyond each other. Due to inaccuracies m the register when applying the elastomer layer onto the colour pattern layer, and when applying the glue layer onto the elastomer layer, the elastomer layer will at least partly protrudes beyond the colour pattern layer, and further the glue layer normally should be ap- plied so that it protrudes 1-2 mm beyond the elastomer layer due to make sure that the adhesion along the periphery of the colour pattern layer is sufficient.
  • the glue layer on the textile is m most case visible due to a slight change of colour. Thus it would be desirable to avoid or minimize the protruding of the glue layer beyond the configuration of the other layers, while still maintaining a safe adherence along the periphery of the colour pattern layer.
  • an objective of the invention is to provide a coloured configurative transfer, and a method for its production which transfer and which method fulfil the above desires .
  • the one layer system method defined in the claims for the production of the transfer is very attractive to the manufacturer of digital/screen printed transfer. Not only does this method reduces the production time substantially, but also it saves all the additional costs in preparation of screens and subsequent cleaning thereof. Further, it reduces the registration problem that always follows a multilayer transfer production.
  • the transfer according to the invention for decorating textiles and similar substrates with image in the form of col ⁇ oured patterns is unique in that it comprises a carrier sheet, which carrier carries
  • the transfer comprises only one layer besides the coloured pattern layer and thus the pro- trudmg of the glue layer beyond the configuration of the colour pattern layer has been minimized, while still maintain a safe adherence along the periphery of the pattern layer .
  • the toners used with a digital colour printer e.g. an electrostatic laser colour printers must have a low melting point (approx. 100 °C) m order to be melted and fixed by passage of hot rollers m a fraction of a second.
  • the toners used by an electrostatic laser colour printers which is a preferred printer for the production of the transfer according to the invention are normally powder toner systems with low melting point, about 100 °C, and a very fast melting index m order to adhere to the substrate m a fraction of a second. Further, the toners are generally non-elastic and have no elongation property.
  • the colour toners are cross linked by the content of isocyanate, having there melting point raised to above 210 °C, whereas the thermoplastic sealant quality of the polymer resin is substan ⁇ tially unaffected by the isocyanate due to the lack of free OH groups. It is a necessity that the melting point of the toners is increased to the mentioned temperature as, other- wise, they will melt down into the thermoplastic polymer resin, and/or even down into the fabric, during the heat/press application of the transfer to a textile fabric. In this case the image will be blurred and fine details lost.
  • the elastomer layer it may be desired to incorporate an anti-cross- linking agent for preventing or reducing cross-linking of the elastomer layer.
  • an anti-cross- linking agent for preventing or reducing cross-linking of the elastomer layer.
  • the non-reacted por- tion of the isocyanate may contribute to a better adherence to the substrate.
  • This quality may be of especial advantage on substrates such as polyamide 6 and 6.6 textiles (nylon), which substrates are usually considered to be difficult to decorate by use of prior art transfer. Under heat and pres- sure during the application process the free isocyanate m the polymer will react with the surface of the textile by cross linking and create a stronger adhesion between the transfer and the substrate.
  • the image of the transfer can then be applied to a substrate m the usual manner.
  • the invention is not limited to applying the resins to the digital image on paper sheets by screen printing, but can also be carried out by coating a coloured pattern printed digitally on a release liner m the form of a roll, for m- stance printed on a XEIKON electrostatic colour printer.
  • the printed coloured pattern can be coated by either a reel-to-reel screen-printing machine - manufactured by "KLEMM SIEBDRUCKMASCHINEN GmbH in Germany.
  • the coating process can be carried out as an ordinary direct roll-to-roll coating, covering the printed release liner m full width and therefore not obtaining any configuration m the thermoplastic layer. This process may be carried out as a continuous process with a coater unit followed by a tunnel dryer.
  • the carrier sheet of the transfer according to the inven ⁇ tion may m principle be any type of carrier sheet, e.g. a sheet having a non-bmdmg surface defined as a surface from which it is possible to remove the essentially part of the colour pattern layer by transferring it to a textile using heat e.g. up to about 200 °C and a pressure up to about 500 kPa.
  • the carrier sheet may e.g. m the form of a roll. Further information concerning useful carrier can be found in WO 97/21867.
  • any digitally controlled colour printer my m principle be used, but it is preferred that the toner used is a dry toner powder of a thermoplastic polymer type e.g. a one component. Printer using such toners e.g. an electrostatic laser colour printer, make prints with a desirable high resolution .
  • the pattern layer may have any size and shape.
  • the transparent or white-pigmented elastomer layer printed onto the pattern layer is obtained or obtainable by printing onto the pattern layer a mixture which besides solvents and minor amount of additives e.g. additives up to about 5 * by weight, preferably up to about 1 by weight consisting essentially of a thermoplastic polymer having essentially no free hydroxyl groups available for cross linking and having a softening point in the range of 120-180 °C and 5-12% by weight of isocyanate.
  • additives up to about 5 * by weight, preferably up to about 1 by weight consisting essentially of a thermoplastic polymer having essentially no free hydroxyl groups available for cross linking and having a softening point in the range of 120-180 °C and 5-12% by weight of isocyanate.
  • thermoplastic polymer in the elastomer layer may be any thermoplastic polymer or mixture of polymers having essentially no free hydroxyl groups available for cross linking and having a softening point in the range of 120-180 °C.
  • thermoplastic polymer may e.g. be selected from the group consisting of PVC, polyolefins, polyesters, (PET or PBT) , polyamide, polycarbonate and mixtures thereof.
  • thermoplastic polymer includes at least 40 % by weight, preferably at least 80 % by weight of thermo- plastic PVC adhesive.
  • thermoplastic polymers should preferably be solvent- based. Any weight % or amount relating to the elastomer is relating to the elastomer without solvent.
  • the thermoplastic polymer may further comprises 10-60 % by weight, preferably 20-40 % by weight of one or more white- pigmented or transparent thermoplastic granulates, which preferably should have an average particle size of less than 100 ⁇ m measured by sieving, meaning that at least 50 % by weight of the particles should have a particle size less than 100 ⁇ m.
  • Preferred solvent-based thermoplastic polymers having a softening point of 120-160 °C include one component PVC without free OH groups, e.g. "TF Printable Adhesive 10210TF” from Wilflex Inc. or "ZE 591" from Sericol Ltd.
  • PVC adhesives consist of copolyester 15-40%, phtha- late esters mix 15-40%, polyvinyl chloride 15-40% and additives.
  • Preferred water-based PVC dispersions are "VYCAR 576" and "VYCAR 577” which are plasticized vinyl chloride polymers using polyacrylates as thickener and anionic syn- thetic emulsifier.
  • an anti-cross- linking agent for preventing or reducing cross-linking of the elastomer layer.
  • the anti-cross-linking agent prevent or reduce any substantial cross-linking in the elastomer layer after the hardening of the colour toner has been completed and the elastomer has become substantially dry from solvent. Particularly, any significant cross-linking of the thermoplastic polymer with it self should be avoided, as such cross-linking may reduce the adhesiveness of the elas- tomer layer severely.
  • the anti-cross-linking agent may be any component which terminates cross-linking activities e.g. components which prevent reaction between isocyanate molecules or which prevent reaction between isocyanate molecules and oxygen.
  • Preferred anti-cross-linking agent may e.g. be a high molecular alcohol.
  • High molecular alcohols includes any alcohols having a volatility which is sufficient low, preferably at least as low as the volatility of the solvent in the elastomer if such a solvent is used during the application of the elastomer layer.
  • the high molecular alcohols may preferably include propanols and glycols, such as monopropylene glycol.
  • the amount of anti-cross-linking agent largely depends on the type of thermoplastic polymer and the type of isocyanate. Generally, the amount of anti-cross-linking agent may be up to about 4% by weight of the elastomer, preferably between 1 and 3% by weight of the elastomer.
  • the isocyanate acting as a catalyst may be any isomer thereof or mixtures.
  • the HDI dnsocyanates of the type "Hexamethylene Dl-Isocyanate” , xylene (mixture of isomers) is recommended as regards solvent-based PVC adhesives. With regard to water-based PVC a water-soluble HDI trimmer is preferred. Both isocyanates are manufactured by "BAYER".
  • a silicone paper or a heat-resistant plastic sheet coated with a thin release layer of silicone or fluorocarbon serves as carrier, and a single- or multi-coloured pattern is printed mirror-mversed with a digitally controlled printer.
  • a transparent or white-pigmented thermoplastic polymer is printed preferably configuratively by silk screen-printing using a 54-27T mesh.
  • a cross linking agent is mixed and stirred into the thermoplastic polymer m a dosage from
  • the polymer layer is then dried and cured m an mfrared/hot air-drymg tunnel at about 110-150 °C for about 30-150 s depending on the energy from the heat source .
  • the image of the transfer may now be applied to any ordinary textile or other substrate m the usual manner at 170- 200 °C and a pressure of about 310 kPa for 8-15 s.
  • Super Opaque Ink from “Wilflex Inc” with added 10% HDI trimmer from “BAYER” was silk screen printed on top of the toner pattern, using a 32T mesh.
  • the transfer was dried and cured m an infrared-heated tunnel dryer at 130 °C for 2 minutes.
  • the image of the finished transfer was applied to a cotton textile at 180 °C and a pressure of 310 kPa for 12 seconds. This type of transfer has a soft hand and is suitable for most types of textiles including elastic fabrics.
  • a coloured pattern or image was printed on a carrier sheet, and then a transparent thermoplastic PVC layer was screen printed on top of the colour print m the described manner.
  • a water- based PVC "VYCAR 576" was prepared by adding 0,5% “BYK 19" defoamer, 0,6- “BYK 346” levelling agent, 1% “COATEX 125P” thickener, "Additive N” 8% wetting agent, "Additive SLF” flow agent. After stirring for 10 minutes a viscosity of 12000 Brookfield was obtained, then 10% HDI isocyanate "Bayhydur 3100" was added, and the mixture stirred for 3 minutes.
  • the transfer was dried and cured m an infrared-heated tunnel oven at 120 °C for 2 minutes.
  • the image of the finished transfer was applied to a white cotton/polyester blend textile m the usual manner. This kind of transfer is only intended for white substrates, but has a particularly good adhesion to the textile due to the absence of pigment.
  • Example 1 but adding 20% (by weight) of a white- pigmented fine thermoplastic granulate with a particle size of less than 100 ⁇ m to the white-pigmented thermoplastic PVC adhesive.
  • the granulate "Estane T5258" is a thermoplastic polyurethane compound having good adhesion properties towards textiles. It contributes to improve the dura- bility of the transfer and enhance opaqueness of the layer on dark substrates.

Abstract

Cette invention concerne un procédé de décalque par application de chaleur servant à décorer des textiles ou des substrats similaires avec des motifs colorés. Le décalque comprend une feuille de support qui reçoit une ou deux couches à motifs multicolores obtenues par impression réalisée avec une imprimante couleur à commande numérique; et une couche élastomérique transparente ou à pigment blanc imprimée sur la couche à motifs, ladite couche élastomérique étant obtenue par impression sur la couche à motifs d'un mélange constitué d'un polymère thermoplastique sensiblement exempt de groupes hydroxyles servant à effectuer une réticulation et présentant un point d'amollissement compris entre 120 et 180 °C et 5 et 12 % en poids d'isocyanate. Le décalque est facile à produire et imprime sur les textiles des motifs à haute résolution et longue durabilité.
EP01915116A 2000-03-24 2001-03-23 Decalque monocouche servant a decorer des textiles avec des motifs colores Withdrawn EP1313907A1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DKPA200000503 2000-03-24
DK200000503 2000-03-24
US20427900P 2000-05-15 2000-05-15
US204279P 2000-05-15
PCT/DK2001/000199 WO2001073191A1 (fr) 2000-03-24 2001-03-23 Decalque monocouche servant a decorer des textiles avec des motifs colores

Publications (1)

Publication Number Publication Date
EP1313907A1 true EP1313907A1 (fr) 2003-05-28

Family

ID=26068801

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01915116A Withdrawn EP1313907A1 (fr) 2000-03-24 2001-03-23 Decalque monocouche servant a decorer des textiles avec des motifs colores

Country Status (3)

Country Link
EP (1) EP1313907A1 (fr)
AU (1) AU2001242316A1 (fr)
WO (1) WO2001073191A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2023347B1 (en) 2019-06-19 2021-01-27 Coldenhove Know How B V Pigment Transfer Paper

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4773953A (en) * 1985-02-20 1988-09-27 Hare Donald S Method for applying a creative design to a fabric from a Singapore Dammar resin coated transfer sheet
DK257390A (da) * 1990-10-25 1992-04-26 Reflex Promotion Transfer til dekorering af overflader med billeder, der er ekstremt holdbare, og specielt billeder omfattende lysreflekterende og farvede omraader i vilkaarlig kombination, samt fremgangsmaade til fremstilling deraf
WO1997021867A1 (fr) * 1995-12-14 1997-06-19 Strand, Eilif Report pour decorer des textiles avec des dessins colores

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0173191A1 *

Also Published As

Publication number Publication date
AU2001242316A1 (en) 2001-10-08
WO2001073191A1 (fr) 2001-10-04

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