EP0123125A2 - Process for the production of transfer printing papers - Google Patents

Process for the production of transfer printing papers Download PDF

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Publication number
EP0123125A2
EP0123125A2 EP84102982A EP84102982A EP0123125A2 EP 0123125 A2 EP0123125 A2 EP 0123125A2 EP 84102982 A EP84102982 A EP 84102982A EP 84102982 A EP84102982 A EP 84102982A EP 0123125 A2 EP0123125 A2 EP 0123125A2
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EP
European Patent Office
Prior art keywords
printing
transfer
papers
liquors
production
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Withdrawn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
EP84102982A
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German (de)
French (fr)
Other versions
EP0123125A3 (en
Inventor
Claus Schuster
Horst Homuth
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.)
Hoechst AG
Original Assignee
Hoechst AG
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 Hoechst AG filed Critical Hoechst AG
Publication of EP0123125A2 publication Critical patent/EP0123125A2/en
Publication of EP0123125A3 publication Critical patent/EP0123125A3/en
Withdrawn legal-status Critical Current

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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
    • B41M5/035—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
    • B41M5/0356—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 inks used for printing the pattern on the temporary support or additives therefor, e.g. dyes, transferable compounds, binders or transfer promoting additives
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S8/00—Bleaching and dyeing; fluid treatment and chemical modification of textiles and fibers
    • Y10S8/916—Natural fiber dyeing
    • Y10S8/919—Paper

Definitions

  • the present invention relates to a process for the production of transfer papers for thermal transfer printing with sublimable dyes, in particular transferable disperse dyes, on printing machine types customary in textile printing.
  • transfer printing papers of the type defined above is generally known.
  • the papers provided as transfer carriers are printed with aqueous printing pastes containing thickeners, which contain the suitable dyes.
  • aqueous printing pastes containing thickeners which contain the suitable dyes.
  • the problem arises, however, that due to the high water content of the printing pastes used for this purpose, the printed papers swell locally due to moisture absorption of the paper substance and therefore throw themselves away.
  • the energy required to dry such products is also high, and corresponds approximately to the amount of water applied from the printing paste.
  • the object of the invention described below was therefore to achieve the production of perfect, dimensionally stable transfer papers using aqueous-based printing pastes which avoid the negative phenomena described above.
  • the new process takes advantage of the principle of using foamed dyeing liquors as printing pastes in which the foam consistency acts as a thickener. Due to the high degree of foaming of the liquors in the range from 1:10 to 1: 150, preferably from 1:40 to 1:80, it is achieved that so little water gets onto the paper that local swelling of the same no longer matters and the associated loss of dimensional stability is largely eliminated.
  • the drying costs of the finished ink carrier can consequently also be reduced to the extent that the water content of the printing pastes is reduced, and environmental pollution is ruled out due to the absence of solvents.
  • anionic or nonionic products with high foaming power are suitable as surfactants which allow the foaming of the liquors.
  • examples include: alkylaryl sulfonates, alkyldimethylamine oxides, hydroxyalkane sulfonates, alkane sulfonate and mixtures of such compounds.
  • the new process allows a dye to be applied to the transfer carrier, which is primarily a surface print, with the result that the required dye concentrations in the foamed batch are reduced.
  • the amount of film-forming agent that can be reduced in this way (to prevent abrasion) and the largely dispensability of a thickener in general then lead to easier dye transfer with yield advantages in the course of the sublimation process in thermal transfer printing.
  • Each is an aqueous liquor containing 80 g of the Disperse Yellow 54 dye with the C.I. 47020 or 10 g of the dye Disperse Red 60 with the CI No. 60756 or 10 g of the dye Disperse Blue 56 with the CI No. 63285, and to which 20 g / l of an alkylaryl sulfonate are added in each case, is foamed by blowing in air as a propellant in a ratio of 1:50. Fine-pored, consistent foams are created.
  • the foams produced in this way from the different colors are successively printed on a web of transfer paper on a rotary printing press and this is then dried.
  • the printed paper has excellent dimensional stability.

Abstract

Beim Druck von Transferpapieren mit normalen wäßrigen Druckpasten tritt als Folge der örtlichen Quellung der Papiersubstanz das Problem der Dimensionsstabilität der Papiere auf. Diese nachteile werden erfindungsgemäß dadurch überwunden, daß man als Druckpasten verschäumte Farbstoff-Flotten einsetzt, in denen die Schaumkonsistenz als Verdickungsmittel wirkt. Dadurch läßt sich eine Verringerung der Feuchtigkeit in den Druckpasten bewerkstelligen.When printing transfer papers with normal aqueous printing pastes, the problem of dimensional stability of the papers arises as a result of the local swelling of the paper substance. These disadvantages are overcome according to the invention in that foamed dye liquors are used as printing pastes, in which the foam consistency acts as a thickener. This enables a reduction in the moisture in the printing pastes.

Description

Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung von Transferpapieren für den Thermoumdruck mit sublimierbaren Farbstoffen, insbesondere transferierbaren Dispersionsfarbstoffen, auf im Textildruck üblichen Druckmaschinentypen.The present invention relates to a process for the production of transfer papers for thermal transfer printing with sublimable dyes, in particular transferable disperse dyes, on printing machine types customary in textile printing.

Das Herstellen von Transferdruckpapieren der zuvor definierten Gattung ist allgemein bekannt. In der Regel werden dabei die als Transferträger vorgesehenen Papiere mit wässrigen, Verdickungsmittel aufweisenden Druckpasten, welche die geeigneten Farbstoffe enthalten,mustergemäß bedruckt. Bei diesen für den erwähnten Zweck bislang üblichen Verfahren tritt allerdings das Problem auf, daß durch den hohen Wassergehalt der hierzu verwendeten Druckpasten die bedruckten Papiere infolge Feuchtigkeitsaufnahme der Papiersubstanz örtlich anquellen und sich deswegen werfen. In Anbetracht dessen ist es schwierig, den Farbträger dann so zu trocknen, daß derselbe wieder glatt und dimensionsstabil wird, was großen Einfluß auf die originalgetreue Wiedergabe des zu übertragenden Dessins hat. Auch ist der Energieaufwand zum Trocknen von derartigen Erzeugnissen hoch, er entspricht etwa der aufgebrachten Wassermenge aus der Druckpaste.The production of transfer printing papers of the type defined above is generally known. As a rule, the papers provided as transfer carriers are printed with aqueous printing pastes containing thickeners, which contain the suitable dyes. With these methods, which have been customary for the mentioned purpose, the problem arises, however, that due to the high water content of the printing pastes used for this purpose, the printed papers swell locally due to moisture absorption of the paper substance and therefore throw themselves away. In view of this, it is difficult to dry the ink carrier so that it becomes smooth and dimensionally stable again, which has a great influence on the faithful reproduction of the design to be transferred. The energy required to dry such products is also high, and corresponds approximately to the amount of water applied from the printing paste.

Es sind daher auch bereits Versuche unternommen worden, dieser Beeinträchtigung entgegenzuwirken; dabei aber mußten wiederum andere Mängel in Kauf genommen werden. So bringt z.B. die Verwendung lösemittelhaltiger, teilwässriger oder als Flüssigmedium nur aus Lösemittel bestehender Druckpasten den Nachteil einer Umweltbelastung sowie Geruchsbelästigung mit sich und bedeutet eine Verteuerung der Druckpasten und damit des fertig zubereiteten Transferpapieres.Attempts have therefore already been made to counteract this impairment; however, other shortcomings had to be accepted. For example, the use of solvent-based, partially aqueous or as a liquid medium only printing pastes consisting of solvents has the disadvantage of environmental pollution and odor nuisance and means that the printing pastes and thus the ready-made transfer paper become more expensive.

Der nachfolgend beschriebenen Erfindung lag also die Aufgabe zugrunde, unter Einsatz von Druckpasten auf wäßriger Basis, welche die oben geschilderten negativen Erscheinungen vermeiden, die Erzeugung von einwandfreien, dimensionsstabilen Transferpapiere zuwege zu bringen.The object of the invention described below was therefore to achieve the production of perfect, dimensionally stable transfer papers using aqueous-based printing pastes which avoid the negative phenomena described above.

Diese Aufgabe wird nunmehr erfindungsgemäß dadurch gelöst, daß man eine oder mehrere farbstoffhaltige, wäßrige Flotten unter Zuhilfenahme von Tensiden feinporig zu konsistenten Schäumen verarbeitet, den Transferträger jeweils in dem gewünschten Muster mit den so erzeugten Schäumen bedruckt und diesen alsdann trocknet.This object is now achieved in that one or more dye-containing, aqueous liquors with the aid of surfactants are processed into fine-pored foams, the transfer carrier is printed in the desired pattern with the foams thus produced and then dried.

Das neue Verfahren macht sich vorteilhaft das Prinzip zunutze, verschäumte Färbeflotten als Druckpasten anzuwenden, in denen die Schaumkonsistenz als Verdickungsmittel wirkt. Durch den hohen Verschäumungsgrad der Flotten im Bereich von 1:10 bis 1:150, vorzugsweise von 1:40 bis 1:80, wird erreicht, daß so wenig Wasser auf das Papier gelangt, daß eine örtliche Quellung desselben nicht mehr ins Gewicht fällt und der damit verbundene Verlust der Dimensionsstabilität weitgehend ausgeschaltet ist.The new process takes advantage of the principle of using foamed dyeing liquors as printing pastes in which the foam consistency acts as a thickener. Due to the high degree of foaming of the liquors in the range from 1:10 to 1: 150, preferably from 1:40 to 1:80, it is achieved that so little water gets onto the paper that local swelling of the same no longer matters and the associated loss of dimensional stability is largely eliminated.

Die Trocknungskosten des fertiggestellten Farbträgers können demzufolge auch in dem Maße der Verringerung des Wassergehaltes der Druckpasten gesenkt werden und eine Umweltbelastung ist aufgrund der Abwesenheit von Lösemitteln ausgeschlossen.The drying costs of the finished ink carrier can consequently also be reduced to the extent that the water content of the printing pastes is reduced, and environmental pollution is ruled out due to the absence of solvents.

Als Tenside, welche die Verschäumung der Flotten ermöglichen, kommen verfahrensgemäß anionische oder nichtionische Produkte mit hohem Schäumvermögen in Frage. Beispielsweise seien genannt: Alkylaryl-sulfonate, Alkyldimethyl-aminoxide, Hydroxyalkan-sulfonate, Alkan-sulfonat und Gemische aus derartigen Verbindungen.According to the process, anionic or nonionic products with high foaming power are suitable as surfactants which allow the foaming of the liquors. Examples include: alkylaryl sulfonates, alkyldimethylamine oxides, hydroxyalkane sulfonates, alkane sulfonate and mixtures of such compounds.

Den zu verschäumenden Flotten können natürlich - sofern erforderlich - auch noch gegenüber den normalen Druck- '.pasten reduzierte Mengen an den dafür üblichen Verdickungsmitteln oder Bindemitteln zugesetzt werden, die eine gute Haftung der Farbstoffe auf dem Papier gewährleisten.Are also compared to the normal pressure '.pasten reduced levels of the customary for thickeners or binders paste to ensure good adhesion of the dyes on paper - to be foamed fleets can, of course - if necessary.

Vermöge der Wirksamkeit des Schaumes gestattet das neue Verfahren auf dem Transferträger einen Farbstoffauftrag, welcher in der Hauptsache als Oberflächendruck ausgeprägt ist, mit der Folge einer Verminderung der notwendigen Farbstoffkonzentrationen im verschäumten Ansatz. Die damit herabsetzbare erforderliche Filmbildner-Menge (zur Abriebverhinderung) und die weitgehende Entbehrlichkeit eines Verdickungsmittels überhaupt führen sodann im Verlauf des Sublimationsvorganges beim Thermoumdruck zu leichterem Farbstofftransfer mit Ausbeutevorteilen.Due to the effectiveness of the foam, the new process allows a dye to be applied to the transfer carrier, which is primarily a surface print, with the result that the required dye concentrations in the foamed batch are reduced. The amount of film-forming agent that can be reduced in this way (to prevent abrasion) and the largely dispensability of a thickener in general then lead to easier dye transfer with yield advantages in the course of the sublimation process in thermal transfer printing.

Beispiel:Example:

Jeweils eine wäßrige Flotte, die im Liter 80 g des Farbstoffes Disperse Yellow 54 mit der C.I.-Nr. 47020 od. 10 g des Farbstoffes Disperse Red 60 mit der C.I.-Nr.60756 oder 10 g des Farbstoffes Disperse Blue 56 mit der C.I.-Nr.63285, enthält und denen man in jedem Fall 20 g/l eines Alkylaryl-sulfonates zusetzt, wird durch Einblasen von Luft als Treibgas im Verhältnis von 1:50 verschäumt. Es entstehen feinporige, konsistente Schäume.Each is an aqueous liquor containing 80 g of the Disperse Yellow 54 dye with the C.I. 47020 or 10 g of the dye Disperse Red 60 with the CI No. 60756 or 10 g of the dye Disperse Blue 56 with the CI No. 63285, and to which 20 g / l of an alkylaryl sulfonate are added in each case, is foamed by blowing in air as a propellant in a ratio of 1:50. Fine-pored, consistent foams are created.

Die so erzeugten Schäume aus den verschiedenen Farben werden nacheinander auf einer Rotationsdruckmaschine auf eine Bahn aus Transferpapier gedruckt und dieses anschließend getrocknet.The foams produced in this way from the different colors are successively printed on a web of transfer paper on a rotary printing press and this is then dried.

Man erhält einen einwandfreien Druck. Das bedruckte Papier weist eine ausgezeichnete Dimensionsstabilität auf.You get a perfect print. The printed paper has excellent dimensional stability.

Claims (4)

.1. Verfahren zur Herstellung von Transferpapieren für den Thermoumdruck mit sublimierbaren Farbstoffen auf im Textildruck üblichen Druckmaschinentypen, dadurch gekennzeichnet, daß man eine oder mehrere farbstoffhaltige, wäßrige Flotten unter Zuhilfenahme von Tensiden feinporig zu konsistenten Schäumen verarbeitet, den Transferträger jeweils in dem gewünschten Muster mit den so erzeugten Schäumen bedruckt und diesen alsdann trocknet..1. Process for the production of transfer papers for thermal transfer printing with sublimable dyes on printing press types customary in textile printing, characterized in that one or more dye-containing, aqueous liquors are processed with the aid of surfactants into fine-pored foams, the transfer carrier in each case in the desired pattern with the so produced Printed foam and then dries it. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die verschäumten Flotten noch zusätzlich geringe Mengen an Verdickungsmitteln oder Bindemitteln enthalten.2. The method according to claim 1, characterized in that the foamed liquors additionally contain small amounts of thickeners or binders. 3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Verschäumungsgrad der Flotten 1:10 bis 1:150, vorzugsweise 1:40 bis 1:80, bezogen auf das ursprüngliche Flottenvolumen, beträgt.3. The method according to claim 1 or 2, characterized in that the degree of foaming of the liquors 1:10 to 1: 150, preferably 1:40 to 1:80, based on the original liquor volume. 4. Transferpapiere für den Thermoumdruck mit sublimierbaren Farbstoffen, erhalten gemäß einem Verfahren nach einem oder mehreren der Ansprüche 1 bis 3.4. Transfer papers for thermal transfer printing with sublimable dyes, obtained according to a process according to one or more of claims 1 to 3.
EP84102982A 1983-03-24 1984-03-17 Process for the production of transfer printing papers Withdrawn EP0123125A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3310689A DE3310689A1 (en) 1983-03-24 1983-03-24 METHOD FOR PRODUCING TRANSFER PRINTING PAPERS
DE3310689 1983-03-24

Publications (2)

Publication Number Publication Date
EP0123125A2 true EP0123125A2 (en) 1984-10-31
EP0123125A3 EP0123125A3 (en) 1985-09-25

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ID=6194499

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84102982A Withdrawn EP0123125A3 (en) 1983-03-24 1984-03-17 Process for the production of transfer printing papers

Country Status (5)

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US (1) US4527993A (en)
EP (1) EP0123125A3 (en)
JP (1) JPS59179394A (en)
DE (1) DE3310689A1 (en)
DK (1) DK121284A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5126390A (en) * 1990-11-23 1992-06-30 Xerox Corporation Coating formulations for the preparation of transfer elements

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2610677A1 (en) * 1976-03-13 1977-09-15 Bayer Ag PRINT PASTE

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT349430B (en) * 1970-09-22 1979-04-10 Sandoz Ag METHOD FOR COLORING A POROUS NATURAL OR SYNTHETIC TEXTILE MATERIAL OR. LEATHER
US4275656A (en) * 1979-02-14 1981-06-30 Charles J. Choma Bubble printing method
DE3020668C2 (en) * 1980-05-30 1984-03-08 Küsters, Eduard, 4150 Krefeld Method of treating a web with foam
US4326904A (en) * 1980-06-02 1982-04-27 National Starch And Chemical Corporation Heat collapsing foam system
US4387132A (en) * 1980-12-29 1983-06-07 Champion International Corporation Heat transfer paper

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2610677A1 (en) * 1976-03-13 1977-09-15 Bayer Ag PRINT PASTE

Also Published As

Publication number Publication date
DK121284D0 (en) 1984-02-28
JPS59179394A (en) 1984-10-11
DK121284A (en) 1984-09-25
DE3310689A1 (en) 1984-09-27
EP0123125A3 (en) 1985-09-25
US4527993A (en) 1985-07-09

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