EP4013913B1 - Papier transfert pour procédés d'impression par sublimation de colorants, et procédé de production de papier transfert - Google Patents

Papier transfert pour procédés d'impression par sublimation de colorants, et procédé de production de papier transfert Download PDF

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Publication number
EP4013913B1
EP4013913B1 EP20775165.2A EP20775165A EP4013913B1 EP 4013913 B1 EP4013913 B1 EP 4013913B1 EP 20775165 A EP20775165 A EP 20775165A EP 4013913 B1 EP4013913 B1 EP 4013913B1
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EP
European Patent Office
Prior art keywords
weight
paper
paper web
transfer paper
aqueous solution
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.)
Active
Application number
EP20775165.2A
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German (de)
English (en)
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EP4013913C0 (fr
EP4013913A1 (fr
Inventor
Mario DONNER
Martin Spitzbart
Kari-Pekka INNO
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.)
Mondi AG
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Mondi AG
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Publication of EP4013913C0 publication Critical patent/EP4013913C0/fr
Publication of EP4013913B1 publication Critical patent/EP4013913B1/fr
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Classifications

    • 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
    • D21H19/54—Starch
    • 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
    • D21H19/10—Coatings without pigments
    • D21H19/12—Coatings without pigments applied as a solution using water as the only solvent, e.g. in the presence of acid or alkaline compounds
    • 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
    • B41M5/035—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet by sublimation or volatilisation of pre-printed design, e.g. sublistatic
    • 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
    • B41M5/035—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet by sublimation or volatilisation of pre-printed design, e.g. sublistatic
    • B41M5/0355—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet by sublimation or volatilisation of pre-printed design, e.g. sublistatic characterised by the macromolecular coating or impregnation used to obtain dye receptive properties
    • 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
    • B41M5/5236—Macromolecular coatings characterised by the use of natural gums, of proteins, e.g. gelatins, or of macromolecular carbohydrates, e.g. cellulose
    • 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
    • D06P5/004—Transfer printing using subliming dyes
    • 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
    • D21H19/80—Paper comprising more than one coating
    • D21H19/84—Paper comprising more than one coating on both sides of the substrate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M2205/00—Printing methods or features related to printing methods; Location or type of the layers
    • B41M2205/02—Dye diffusion thermal transfer printing (D2T2)
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M2205/00—Printing methods or features related to printing methods; Location or type of the layers
    • B41M2205/30—Thermal donors, e.g. thermal ribbons
    • 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

Definitions

  • the invention relates to a method for producing transfer paper for thermal sublimation printing processes, a transfer paper for thermal sublimation printing processes and a method for printing textiles.
  • transfer printing Since in transfer printing the printed image is first printed on a transfer paper and only then transferred to the substrate that is actually to be printed, the transfer paper has special requirements that cannot be met or can only be met very inadequately by conventional printing paper intended for printing. In addition to good printability, transfer paper is also required to transfer the printed image to the substrate to be printed as completely and as qualitatively as possible. On the one hand, a high transfer efficiency for the transfer of the printing ink(s) is desired, but also a transfer of the printed image applied to the transfer paper that is as contrasting or true to the contour as possible.
  • a transfer paper should, on the one hand, be easy to print on, but on the other hand, an applied printed image or the sublimation dyes used for this purpose should be released or transferred as completely and accurately as possible to the substrate to be printed when heat and pressure are used.
  • Proposals have already been disclosed in the past, which relate in particular to transfer paper with improved transfer efficiency.
  • a transfer paper with a coating based on carboxymethyl cellulose, polyvinyl alcohol, alginate or gelatin with a certain porosity and kaolin or talc as a filler is disclosed.
  • a similar transfer paper is also available, for example US 2019/0001728 A1 known.
  • WO 2018/139925 For example, a transfer paper with a coating based on a cationic polyamine or polyimine is disclosed.
  • the object of the present invention was, on the one hand, to provide a method for producing a transfer paper for thermal sublimation printing processes, by means of which transfer paper with good transfer printing properties can be produced in high quality but still cost-effectively in large quantities.
  • a further object of the invention was to provide a transfer paper for thermal sublimation printing processes with improved properties, as well as a method for printing textiles using a corresponding transfer paper.
  • the object of the invention is achieved on the one hand by a method for producing a transfer paper according to the corresponding claims.
  • transfer paper can be produced continuously in a continuous process sequence that makes economic sense and in large quantities.
  • a separate step for applying a coating such as by means of doctor blades as stated in the prior art, can be dispensed with here.
  • the method for producing transfer paper can be intended for thermal sublimation printing processes in which the transfer paper is printed using digital inkjet printing.
  • the coating is carried out in-line in the process and the backing paper or the paper web with the applied coating is treated together in the process, in particular dried to a desired water content, a composite material with particularly good adhesive properties of the layers to one another can also be produced , and are manufactured with particularly good quality of the coating. Delamination phenomena or the formation of defects in the coating, which can, for example, have a negative impact on the print image quality, can be effectively prevented.
  • the specified coating comprising the modified starch is particularly advantageous with regard to the requirements placed on a transfer paper.
  • the coated transfer paper can prevent unwanted penetration of the sublimation dyes onto the back of the transfer paper and the associated loss of sublimation dyes for a sublimation printing process, during and after printing on the transfer paper and also during the transfer printing process.
  • the coating can, for example, consist of over 90% by weight of the modified starch, but can, for example, contain small amounts of, for example, manufacturing or other impurities, as well as small amounts of additives common in paper technology.
  • starch of any kind or obtained from different sources can be used, for example potato, wheat or corn starch can be used for the aqueous solution.
  • a suspension of the pulp in water with a water content of 90% by weight up to 99.5% by weight can be produced, which is then successively formed into a paper web with the optimal water content for the coating in process step g) according to the specified process sequence. is dried or converted.
  • the coated paper web is then specifically dried to the specified water content of 3% by weight to 7% by weight.
  • a transfer paper can be produced which is particularly suitable for thermal sublimation printing, as will be explained in more detail below using exemplary embodiments.
  • the surface of the transfer paper intended for thermal sublimation printing is formed by the surface which is coated with the cationically modified starch. That surface of the transfer paper to which the aqueous solution of the enzymatically degraded starch was applied represents the back of the transfer paper.
  • the surface of the transfer paper coated with the cationically modified starch is printed, and is also this in the course of a thermal sublimation printing process Surface in contact with the substrate to be printed, for example textile.
  • the aqueous solution of the modified starch is not applied directly to at least one surface of the paper web, but can be applied in advance to one or two application rollers of the film press in the desired layer thickness.
  • the layer can then be transferred from the applicator roller(s) onto the paper web.
  • the application or coating using such a film press is particularly suitable for high throughput of the paper web, and is also advantageous in terms of controlling the layer thickness.
  • an embodiment of the method may be useful in which, in method step g), an aqueous solution having a concentration of the cationically modified starch of 5% by weight to 20% by weight is applied to at least one surface of the paper web.
  • the coating which comprises the cationically modified starch, can be given a layer thickness that is particularly suitable for thermal sublimation printing processes.
  • an upper limit for the layer thickness is specified, which is still useful in terms of economically viable production of the transfer paper.
  • the transfer paper comprises a paper substrate with a basis weight of 40 g/m 2 to 160 g/m 2 .
  • the paper substrate can predominantly comprise cellulose fibers, although other components, such as lignin or hemi-celluloses, or additives and fillers common in paper technology can also be contained in the paper substrate.
  • starch modified in this way has proven to be particularly easy to process.
  • a transfer paper with a coating comprising such a modified starch has particularly good properties when used in thermal sublimation printing processes.
  • a basis weight or a layer thickness in the specified range has proven to be particularly suitable for thermal sublimation printing processes. Above all, a layer thickness selected from this range appears to be suitable in order to prevent excessive amounts of sublimation printing dyes or pigments from penetrating into the underlying paper substrate.
  • the specified range specifies an upper limit for the basis weight, which is still useful in terms of economically viable production of the transfer paper.
  • transfer paper that has a water absorbency according to Cobb according to ISO 535 of 20 g/m 2 to 35 g/m 2 can be useful.
  • the object of the invention is also achieved by a method for printing textiles.
  • the process includes producing a negative printed image on a transfer paper using sublimation printing dye(s) and transferring the printed image to a textile substrate using a thermal transfer press.
  • a transfer paper is used here, which is designed as described above and below.
  • textiles with print images of particularly high quality, in particular high contour fidelity, high contrast and good color density can be provided.
  • the negative print image is produced on the transfer paper using digital inkjet printing.
  • a pulp or an aqueous pulp suspension is provided in a first process step a).
  • the pulp can be used as is known per se and in the case of printable papers, it usually consists predominantly of cellulose, although small amounts of other components, for example lignin or hemicelluloses from the production of the cellulose, or additives and impurities may also be contained.
  • a pulp can be dried or provided as an aqueous suspension.
  • a suspension of the pulp in water with a water content of at least 90% by weight can be up to 99.5% by weight. This is based on 100% by weight of the suspension of the pulp in water.
  • additives, fillers or process chemicals can also be added to the aqueous pulp suspension.
  • additives common in paper technology can be added to the aqueous pulp suspension.
  • the next process step d) is dewatering of the suspension 1 by means of a sieve section 2.
  • a sieve section 2 can have a circumferential sieve 3, with the aqueous pulp suspension 1 being carried on a surface 4 of the sieve 3.
  • the other surface 5 of the sieve 3 can be guided over dewatering means 6 of the sieve section 2 during each revolution of the sieve 3.
  • Such drainage means can be formed, for example, by drainage and/or suction strips.
  • Dewatering in a sieve section can generally be carried out using gravity. In addition, it can also be done as in the Fig.
  • the dewatering of the suspension 1 can be supported by applying a negative pressure to the surface 5 of the sieve 3 facing away from the pulp suspension 1 by means of a negative pressure device 7.
  • the aqueous suspension of the pulp in water is in the Fig. 1 illustrated process step d) adjusted to a water content of 60% by weight to 85% by weight or dewatered.
  • a drying section 12 can, as shown, comprise numerous rotating drying cylinders 13 over which the paper web 8 can be guided.
  • the drying cylinders can be heated directly.
  • Heating channels not shown, can be formed in the drying cylinders 13, through which a heating medium, for example water vapor, can be passed.
  • electrical resistance heaters are also fundamentally conceivable.
  • a temperature of the drying cylinders 13 can be used, for example, in the Fig. 3 illustrated embodiment from left to right, i.e.
  • the drying section 12 can also have other aids, such as screen webs 15, 16 guided over deflection rollers 14. Such screen webs 15, 16 can prevent direct contact of the paper web 8 with the hot drying cylinders 13.
  • the paper web 8 is dried by means of the drying section 12 to a water content of 1% by weight to 10% by weight.
  • a process step g at least one of the surfaces 17 of the paper web 8 dried in process step f) is coated by means of a coating device 18.
  • Two alternative solutions for coating at least one of the two surfaces 17 of the paper web 8 are in the Fig. 4 and Fig. 5 shown, and will be explained in more detail below.
  • the coating is carried out by applying an aqueous solution (19) of a modified starch.
  • the starch is cationically modified and has a degree of substitution by cationic groups of 0.03 to 0.6 mol/mol.
  • cationically modified potato, wheat or corn starch can be used for the process.
  • process step g) an aqueous solution 19 of a starch cationically modified with quaternary ammonium groups is used.
  • the aqueous solution of the cationically modified starch is applied to one surface 17 of the paper web 8 and to the other surface 22 of the paper web 8 an aqueous solution 23, which is 5% by weight. up to 15% by weight of an enzymatically degraded starch is applied.
  • the aqueous solution 23 of the enzymatically degraded starch can be introduced between the surface 22 and the application roller 21 directly assigned to this surface 22.
  • aqueous solution 19 of the cationically modified starch can be applied to at least one surface 17 of the paper web 8 using a film press 24.
  • provision can then be made for the paper web 8 to be dried to a water content of 1.2% by weight to 2.0% by weight in method step f), which is carried out directly in advance.
  • the paper web 8 can be passed between two stripping rollers 25 using a film press 24. In this case, how from the Fig.
  • the aqueous solution 19 of the cationically modified starch is applied in advance in a specifically adjusted layer thickness to the stripping roller 25 assigned to the at least one surface 17 of the paper web 8, and transferred from this stripping roller 25 to the at least one surface 17 of the paper web.
  • an aqueous solution 19 of the cationically modified starch is applied to both surfaces 17, 22 of the paper web 8.
  • process step g) the aqueous solution 19 of the modified starch is only applied to one surface 17 of the paper web is applied, and only water or no fluid at all is applied to the other surface 22 of the paper web 8.
  • the coated paper web 8 is post-dryed by means of a further drying section 12 or post-drying section 12.
  • a further drying section 12 or post-drying section 12 can in principle be analogous to the one already in the Fig. 3 illustrated drying by means of the drying section 12 shown, or a corresponding post-drying section 12 can be designed analogously or at least similarly to the drying section 12 used in method step f).
  • a further description of a drying process using a drying section 12 or post-drying section 12 can therefore be unnecessary at this point and will be discussed below Fig. 3 and the associated description.
  • Illustrated process steps d) to i) can be carried out in direct succession in a paper machine. What is important here is the successive dewatering of the suspension 1 of the pulp and the drying of the paper web 8 in the process sequence, including the joint drying of the paper web 8 with the coating or the subsequent drying of the coated paper web in process step h). This corresponds to the specified ranges for water contents for the aqueous pulp suspension 1 or the paper web 8.
  • a transfer paper 28 for thermal sublimation printing processes is shown in cross section.
  • Such a transfer paper 28 can in particular according to a method as above using the exemplary embodiments in the Fig. 1 to 6 described.
  • the transfer paper 28 is in the Fig. 7 shown in sections and not to scale, and can in principle have any dimensions suitable for an intended thermal transfer printing process.
  • standardized dimensions for papers can be provided, such as Din A4 or Din A3.
  • the coating 31 can preferably have a basis weight of 0.2 g/m 2 to 4 g/m 2 . Furthermore, it can preferably be provided that the transfer paper 28 has a Cobb water absorbency according to ISO 535 of 20 g/m 2 to 35 g/m 2 .
  • the transfer paper 28 can be easily printed, i.e. that it can absorb and temporarily store the sublimation printing dyes as well as possible.
  • test series 1 and 2 Two test series 1 and 2 were carried out, with two different, commercially available sublimation inks, each with four base colors or dyes for inkjet printing, being used to print the test papers in test series 1 and 2.
  • the printing of the test papers before transferring them to the polyester textile was carried out using inkjet printing.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Paper (AREA)
  • Ink Jet Recording Methods And Recording Media Thereof (AREA)

Claims (15)

  1. Procédé de fabrication de papier de transfert pour des processus d'impression par thermosublimation, comprenant les étapes de procédé
    a) fourniture d'une pâte à papier ou d'une suspension aqueuse de pâte à papier,
    b) préparation d'une suspension (1) de la pâte à papier dans de l'eau ayant une teneur en eau d'au moins 90 % en poids,
    c) ajout facultatif d'additifs, de charges ou de produits chimiques de traitement à la suspension (1) aqueuse,
    d) déshydratation de la suspension (1) jusqu'à une teneur en eau de 60 % en poids à 85 % en poids au moyen d'une section de tamisage (2),
    e) séchage de la suspension (1) déshydratée en une bande de papier (8) ayant une teneur en eau de 30 % en poids à 55 % en poids au moyen d'une section de pressage (9),
    f) séchage supplémentaire de la bande de papier (8) jusqu'à une teneur en eau de 1 % en poids à 10 % en poids au moyen d'une section de séchage (12),
    g) revêtement d'au moins une des surfaces (17) de la bande de papier (8) au moyen d'un dispositif de revêtement (18) par application d'une solution aqueuse (19) d'un amidon modifié, lequel amidon est modifié de manière cationique et présente un degré de substitution par des groupes cationiques de 0,03 à 0,6 mole/mole,
    h) post-séchage de la bande de papier (8) revêtue au moyen d'une autre section de séchage (12) jusqu'à une teneur en eau de 3 % en poids à 7 % en poids,
    i) confection de la bande de papier (8) revêtue et post-séchée.
  2. Procédé selon la revendication 1, caractérisé en ce que, dans l'étape de procédé g), une solution aqueuse (19) d'un amidon modifié de manière cationique avec des groupes ammonium quaternaire est utilisée.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que dans l'étape de procédé f), la bande de papier (8) est séchée jusqu'à une teneur en eau de 2,5 % en poids à 10 % en poids, et dans l'étape de procédé g), la solution aqueuse (19) de l'amidon modifié est appliquée au moyen d'une presse à encoller (20) sur au moins une surface (17) de la bande de papier (8).
  4. Procédé selon la revendication 3, caractérisé en ce que, dans l'étape de procédé g), la solution aqueuse (19) de l'amidon modifié est appliquée sur une surface (17) de la bande de papier (8) et une solution aqueuse (23) contenant de 5 % en poids à 15 % en poids d'un amidon dégradé enzymatiquement est appliquée sur l'autre surface (22) de la bande de papier (8).
  5. Procédé selon la revendication 1 ou 2, caractérisé en ce que dans l'étape de procédé f), la bande de papier (8) est séchée jusqu'à une teneur en eau de 1,2 % en poids à 2,0 % en poids, et dans l'étape de procédé g), la solution aqueuse (19) de l'amidon modifié est appliquée au moyen d'une presse à film (24) sur au moins une surface (17) de la bande de papier (8).
  6. Procédé selon la revendication 5, caractérisé en ce que, dans l'étape de procédé g), la solution aqueuse (19) de l'amidon modifié est appliquée sur une surface (17) de la bande de papier (8) et une solution aqueuse (23) contenant de 5 % en poids à 15 % en poids d'un amidon dégradé enzymatiquement est appliquée sur l'autre surface (22) de la bande de papier (8).
  7. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que, dans l'étape de procédé g), une solution aqueuse (19) présentant une concentration de l'amidon modifié de 5 % en poids à 20 % en poids est appliquée sur au moins une surface supérieure (17) de la bande de papier (8).
  8. Procédé selon la revendication 7, caractérisé en ce qu'une quantité de 0,5 g/m2 à 20 g/m2 de la solution aqueuse (19) de l'amidon modifié est appliquée sur au moins une surface (17) de la bande de papier (8).
  9. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que, dans l'étape de procédé h), une teneur en eau de la bande de papier (8) revêtue est ajustée de 4 % en poids à 6 % en poids.
  10. Papier de transfert (28) pour des processus d'impression par thermosublimation, en particulier fabriqué avec un procédé selon l'une quelconque des revendications 1 à 9, comprenant un substrat de papier (29) avec un poids par unité de surface de 40 g/m2 à 160 g/m2, dans lequel au moins une surface (30) du substrat en papier (29) est pourvue d'un revêtement (31), lequel revêtement (31) est constitué au moins principalement d'un amidon modifié, lequel amidon est modifié de manière cationique et présente un degré de substitution par des groupes cationiques de 0,03 à 0,6 mol/mol, et dans lequel le papier de transfert (28) présente une teneur en eau de 3 % en poids à 7 % en poids.
  11. Papier de transfert selon la revendication 10, caractérisé en ce que le revêtement (31) est constitué d'un amidon modifié cationiquement avec des groupes d'ammonium quaternaire.
  12. Papier de transfert selon la revendication 10 ou 11, caractérisé en ce que le revêtement (31) présente un grammage de 0,2 g/m2 à 4 g/m2.
  13. Papier de transfert selon l'une quelconque des revendications 10 à 12, caractérisé en ce qu'il présente une teneur en eau de 4 % à 6 % en poids.
  14. Papier de transfert selon l'une quelconque des revendications 10 à 13, caractérisé en ce qu'il présente une capacité d'absorption d'eau selon Cobb conformément à la norme ISO 535 de 20 g/m2 à 35 g/m2.
  15. Procédé d'impression de textiles, comprenant
    la production d'une image d'impression négative sur un papier de transfert (28) au moyen d'un ou de plusieurs colorants d'impression par sublimation (34),
    le transfert de l'image imprimée sur un substrat textile (36) au moyen d'une imprimante à transfert thermique (37),
    caractérisé en ce que
    un papier de transfert (28) selon l'une quelconque des revendications 10 à 14 est utilisé.
EP20775165.2A 2019-08-16 2020-08-13 Papier transfert pour procédés d'impression par sublimation de colorants, et procédé de production de papier transfert Active EP4013913B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50720/2019A AT522768B1 (de) 2019-08-16 2019-08-16 Transferpapier für Thermosublimationsdruck-Prozesse und Verfahren zur Herstellung von Transferpapier
PCT/AT2020/060305 WO2021030851A1 (fr) 2019-08-16 2020-08-13 Papier transfert pour procédés d'impression par sublimation de colorants, et procédé de production de papier transfert

Publications (3)

Publication Number Publication Date
EP4013913A1 EP4013913A1 (fr) 2022-06-22
EP4013913C0 EP4013913C0 (fr) 2023-12-27
EP4013913B1 true EP4013913B1 (fr) 2023-12-27

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EP20775165.2A Active EP4013913B1 (fr) 2019-08-16 2020-08-13 Papier transfert pour procédés d'impression par sublimation de colorants, et procédé de production de papier transfert

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EP (1) EP4013913B1 (fr)
AT (1) AT522768B1 (fr)
WO (1) WO2021030851A1 (fr)

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DK1102682T3 (da) 1998-07-29 2003-02-24 Sanders W A Papier Overføringspapir til inkjet-printning
US20050020448A1 (en) * 2003-07-23 2005-01-27 Fuji Photo Film Co., Ltd. Paper, image-recording material support, and image-recording material
FI123465B (fi) * 2009-05-11 2013-05-31 Kemira Oyj Koostumuksen käyttö mustesuihkupainatusominaisuuksien parantamiseksi
KR101159530B1 (ko) * 2010-03-23 2012-06-25 코스코엠주식회사 승화전사지용 배리어층 조성물 및 이를 코팅한 승화전사지
DE102014116550A1 (de) * 2014-11-12 2016-05-12 Papierfabrik August Koehler Se Thermosublimationspapier
PL3307549T3 (pl) 2015-06-12 2021-03-08 Coldenhove Know How B.V. Udoskonalony przedrukowy papier do drukowania atramentowego
WO2017217274A1 (fr) * 2016-06-14 2017-12-21 三菱製紙株式会社 Papier à report
CN107142782B (zh) * 2016-12-30 2019-08-02 山东华泰纸业股份有限公司 一种热升华数码转移印纸的生产方法
NL2018248B1 (en) 2017-01-27 2018-08-07 Crown Van Gelder B V Paper composition for transfer printing
JP6310121B1 (ja) * 2017-06-08 2018-04-11 大王製紙株式会社 昇華型インクジェット捺染転写紙

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EP4013913C0 (fr) 2023-12-27
AT522768B1 (de) 2021-01-15
AT522768A4 (de) 2021-01-15
EP4013913A1 (fr) 2022-06-22
WO2021030851A1 (fr) 2021-02-25

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