EP0416888B1 - Bedrucken von Textilmaterialien - Google Patents

Bedrucken von Textilmaterialien Download PDF

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Publication number
EP0416888B1
EP0416888B1 EP90309697A EP90309697A EP0416888B1 EP 0416888 B1 EP0416888 B1 EP 0416888B1 EP 90309697 A EP90309697 A EP 90309697A EP 90309697 A EP90309697 A EP 90309697A EP 0416888 B1 EP0416888 B1 EP 0416888B1
Authority
EP
European Patent Office
Prior art keywords
fabric
printing
discharge
heat treatment
humectant
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.)
Expired - Lifetime
Application number
EP90309697A
Other languages
English (en)
French (fr)
Other versions
EP0416888A3 (en
EP0416888A2 (de
Inventor
Ian Durham Rattee
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.)
WACE UK LIMITED
Original Assignee
WACE UK Ltd
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 WACE UK Ltd filed Critical WACE UK Ltd
Publication of EP0416888A2 publication Critical patent/EP0416888A2/de
Publication of EP0416888A3 publication Critical patent/EP0416888A3/en
Application granted granted Critical
Publication of EP0416888B1 publication Critical patent/EP0416888B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • D06P5/22—Effecting variation of dye affinity on textile material by chemical means that react with the fibre
    • 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
    • D06P5/002—Locally enhancing dye affinity of a textile material by chemical means
    • 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
    • D06P5/15—Locally discharging the dyes
    • D06P5/151—Locally discharging the dyes with acids or bases
    • 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
    • D06P5/15—Locally discharging the dyes
    • D06P5/155—Locally discharging the dyes with reductants

Definitions

  • This invention relates to the printing of fabrics.
  • discharge printing An important type of textile printing is known as discharge printing in which a dyed fabric is printed with a suitable printing ink which contains chemicals capable of destroying the ground colour of the fabric during heating or steaming treatment. The fabric is then washed off to remove undesirable residues and to give a coloured fabric with a design of substantially uncoloured material.
  • the printing ink contains colouring matters which are resistant to the chemical degradation process of discharging and which are fixed to the fabric during the heating treatments which are involved. In this way, so-called “illuminated” discharge prints may be produced using vat dyes or resin bonded pigments as colouring matters.
  • the colouring matters used for the production of illuminated discharge prints may normally be fixed to the fabric, generally cotton or some other cellulosic or substantially cellulosic material, by coloration processes which do not require washing off, when the colouring matters are used in discharge printing, a washing off stage is involved due to the need to remove the residues of the chemicals involved in the discharge processes.
  • Discharge pigment printing processes have been described in which a fabric, dyed with a dye or a mixture of dyes susceptible to chemical degradation to produce colourless or virtually colourless products, is printed with an ink containing a discharge agent, finely dispersed pigments in an aqueous medium, a resin binder capable of polymerising to bond the pigment particles to the fabric, and various catalysts etc. to enhance the reactions.
  • the fabric is dried and then steamed for a period of minutes to produce the discharge.
  • the fabric is then baked to polymerise the resin binder and washed off to remove undesirable residues.
  • EP-A-0036252 discloses a process of decorating dyed fabric, which comprises the steps of: applying a printing paste, containing at least one reagent capable of reacting with the dye in the fabric at least substantially to destroy its colour, and agents assisting the colour-destroying reaction, water and humectant, to desired image areas forming a design on the fabric, and subjecting the fabric with the applied paste to a heat treatment prior to drying the fabric to fix the design in the fabric.
  • a separate paste is also applied to the fabric before or after the other printing paste just noted, which contains a dyestuff.
  • the first printing paste prevents some of the dye in the second paste from becoming fixed to the fabric. This process makes washing of the fabric being treated necessary, in order to remove such dye as has been prevented from fixing, before the effects of the process are visible.
  • discharge prints have been successfully produced for many years on fabrics in a continuous web.
  • discharge printing has not been used for decorating garments, or garment panels from which garments are to be made, because textile materials in such a form cannot be washed off without creating expense as well as inconvenience in later processing. Any decoration process used for such materials thus has to be substantially dry, and various dry processes have indeed been developed for textile printing.
  • a further reason for avoiding wet processing garments or garment panels is that it is essential to maintain the dimensional stability of the material in order to control either the garment size or the fit of the decorated panels with other non-decorated panels in making up the garment.
  • the opportunities offered by discharge printing have, until now, been wholly unavailable to the printer of garments and garment panels.
  • print formulation is a discharge print formulation
  • all the above disadvantages and limitations of discharge printing may be avoided, and printing may be carried out on continuous lengths of fabric, garments or garment panels using those formulations and subjecting the print to appropriate dry heat treatment processes.
  • Discharge prints can be obtained without any need for wet processing at any stage after the application of the printing ink and with the discharge effect fully apparent within a very short time after printing.
  • colouring materials is used to indicate a pigment or a dyestuff or a mixture of both which will give a coloured effect, and the term is used to include both black and white, as well as spectral colours.
  • a process of decorating dyed fabrics as described above which is characterised in that the printing paste contains at least 8% by weight of a humectant; and wherein the heat treatment includes maintaining the fabric at a temperature higher than 100°C for a period during which the fabric is confined between a pair of layers of impermeable material.
  • the fabric may then be subjected to a second heat treatment, the conditions of which are designed to fix any colouring materials in the printing paste to the fabric to give a fast to washing result.
  • discharge printed or decolorised areas may be overprinted with colouring material to produce a design in a second printing step.
  • the paste needs to contain at least one reagent capable of reacting with the dye in the fabric at least substantially to destroy its colour (i.e. a discharge agent) together with agents assisting the reaction such as acids, alkalis, reduction catalysts and the like.
  • the fabric is subject to pressure, e.g. by being passed through a roller nip while being confined between two impermeable layers or by being held between two heated plates coated with impermeable material for an appropriate period of time.
  • the first heat treatment referred to above needs to be carried out for only a relatively short period of time and, immediately thereafter, the discharge process is complete. Thus, the printer may judge more accurately, and at an early stage in the printing operating, whether the print is satisfactory.
  • the exact time necessary for the first heat treatment stage will vary with the fabric, the quantity of discharge ink applied and the nature of the dyestuff applied to the fabric and which it is necessary to discharge, but using appropriate temperatures and apparatus it can be as low as 10 seconds. Usually 20 to 30 seconds is convenient, though longer treatment times, e.g. up to 60 seconds, can be used if desired.
  • humectants may be used of which the following are particularly suitable:
  • humectants are known to be used in textile printing to prevent inks drying on the silk screens used in printing. Normally for this purpose they are present in relatively low concentration in the printing ink, i.e. 3-4%. In the inks of the present invention they are required to constitute at least 8-9% of the ink formulation, preferably 12-15%.
  • a particular advantage of the printing process of the present invention is the soft handle conferred by the heat treatment especially when the ink incorporates pigments and binders to produce a coloured discharge.
  • the printing ink incorporates a pigment or a mixture of pigments which are chemically stable to the discharge agent and a pigment binder or mixture of binders together with any desired catalysts which will promote the curing of the binder or binders in a second heat treatment following the first discharging heat treatment.
  • Agents enhancing softness of handle or any other desired effect may also be included as required.
  • Suitable pigment binders are well known in the general field of pigment printing textiles but due to the special conditions associated with the production of the colour discharge, not all of the binders which are used under normal circumstances will give a fully satisfactory result due to discolouration or other degradation reactions which may occur. The printer should therefore select suitable binder by experiment.
  • Another kind of pigment dispersion which may be used in this form of the invention is that known as water based on water compatible plastisol inks. These may be mixed with the discharge agent and the humectant and printed in the usual way. The fabric is then heat treated to produce the discharge effect using heating between impermeable blankets as described. Due to the thermoplasticity of plastisol inks, it can be advantageous to cover the print with a sheet of release paper to prevent adhesion to the impermeable blankets during this stage of the process. After the discharge is complete, the print is fully cured by passage through a hot oven in the usual way for such inks. This procedure offers considerable advantage over the simple application of these inks on to dyed materials since discharging the colour makes it unnecessary to have sufficient ink present to mask the ground shade and consequently softer, better defined prints with a more attractive handle can be obtained.
  • a special advantage of the present invention is the rapidity with which the full discharge effect becomes apparent. This enables the discharged area of a final print to be produced in the course of a sequence of application of different inks to the fabric to produce a final design.
  • the whole area to be decorated may be printed with a colourless binder free discharge ink constituted in accordance with the present invention and the printed fabric heated between to hot plates for a short period or a succession of short periods, e.g. two times 5 seconds at 160°C.
  • the discharge printed area may then be printed with a variety of white or coloured inks without the requirement that the colouring matters be stable to the discharge reaction.
  • a printing ink is prepared containing the following (% by weight): Imperon Binder 506 10.6% Alcoprint PHL 17.6% Water 45.5% Titanium Dioxide (as a 50% aqueous dispersion) 13.6% Diammonium Hydrogen Phosphate 3.3% Viscalex HV30 2.8% Zinc Formaldehyde Sulphoxylate 6.6%
  • Imperon Binder 506 is an aqueous emulsion of acrylic polymers manufactured by Hoechst UK Ltd.
  • Alcoprint PHL is a mixture of organic salts and ethoxylated esters manufactured by Allied Colloids Ltd.
  • Viscalex HV30 is a mixture of polyacrylic acid derivatives manufactured by Allied Colloids Ltd.
  • a design is printed by silk screen on to a cotton fabric dyed to a full red shade using Remazol Brilliant Red F3B (Hoechst UK Ltd).
  • the printed fabric is then passed into a hot oven at 180°C between two continuous impermeable blankets held together to prevent drying for 30 seconds.
  • the blankets are so arranged that, before emerging from the oven, the fabric passes between pressure rollers. It can be seen that, as the fabric emerges from the oven, the red dye is discharged in the printed areas to give a white design.
  • the fabric is then passed through a hot oven at 180°C for 1 minute to complete polymerisation of the binder and fixation of the white pigment.
  • the design produced in this manner is fast to washing at 60°C, to wet or dry rubbing and to light.
  • a printing ink is prepared containing the following (% by weight): Acramine Binder SLN 11.1% Glycerol 19.1% Titanium Dioxide (as a 50% aqueous dispersion) 13.1% Copper Phthalocyanine as an aqueous dispersion) 5.0% Water 34.4% Isopropanolamine 3.5% Viscalex V30 6.8% Formamidine Sulphinic Acid 7.0%
  • Acramine Binder SLN is an aqueous emulsion of acrylic polymers manufactured by Bayer.
  • a design is printed by silk screen on to a cotton fabric dyed to a yellow shade by the pad-batch (cold) process using Remazol Brilliant Yellow 4GL (Hoechst UK Ltd).
  • the printed fabric is then heated for 25 seconds in a book press at 175°C between impermeable felts. On removal of the fabric from the press, it is seen that it is printed with a bright blue design on a yellow ground.
  • the fabric is then passed through a hot oven for 2 minutes at 185°C to complete fixation of the white and blue pigments.
  • the design produced in this way is fast to washing at 60°C, to wet and dry rubbing and to light. It possesses a soft attractive handle.
  • a printing ink is prepared containing the following (% by weight): Hydroxymethyl cellulose 5.0% Alcoprint PHL 12.5% Monoethanolamine 3.5% Formamidine Sulphinic Acid 7.0% Water 72.0%
  • a cotton garment panel dyed to a violet shade with Remazol Violet 5R (Hoechst UK Ltd) is mounted on a carrier board in a multicolour screen printing unit and printed with a design using the above ink.
  • the mounted panel is then moved to the second station on the machine where it is pressed between heated plates at 165°C for 5 seconds. It is then moved to the third station where it is pressed between plates as before. At this point, it can be seen that the panel has a white discharged design in the printed areas.
  • Printing may then be continued using the fourth and subsequent printing stations to apply any desired coloured ink containing dyes or pigments as required. These may be fixed by any appropriate method to produce their normal fastness but with their normal shade due to their having been printed on a white ground as results of the discharge produced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Coloring (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Decoration Of Textiles (AREA)
  • Multicomponent Fibers (AREA)

Claims (6)

  1. Verfahren zum Dekorieren von gefärbtem Gewebe, das folgende Schritte umfaßt: Aufbringen einer Druckpaste, enthaltend mindestens ein Reaktionsmittel, das mit dem Farbstoff in dem Gewebe reagieren kann, um dessen Farbe zumindest im wesentlichen zu zerstören, und Mittel, die bei der Farbzerstörungsreaktion helfen, Wasser und Feuchthaltemittel, auf die gewünschten Bildbereiche, die auf dem Gewebe ein Muster bilden, und Wärmebehandeln des Gewebes mit der aufgebrachten Paste, bevor das Gewebe getrocknet wird, um das Muster in dem Gewebe zu fixieren, dadurch gekennzeichnet, daß die Druckpaste mindestens 8 Gew.-% eines Feuchthaltemittels enthält, und daß das Gewebe bei der Wärmebehandlung auf einer Temperatur von über 100°C gehalten wird, und zwar für eine Zeitdauer, während der das Gewebe zwischen zwei Lagen undurchlässigen Materials eingeschlossen ist.
  2. Verfahren gemäß Anspruch 1, worin die Druckpaste Farbmittel und Mittel zum Fixieren der Farbmittel in dem Gewebe enthält, und worin das Verfahren einen weiteren Behandlungsschritt unter solchen Zeit- und Temperaturbedingungen umfaßt, daß die Farbmittel in dem Gewebe so fixiert werden, daß sie waschfest werden.
  3. Verfahren nach Anspruch 1 oder 2, worin nach der Aufbringung der Druckpaste und dem (den) Wärmebehandlungsschritt(en) das Gewebe mit einem Farbmittel überdruckt wird, um ein Muster in einem zweiten Druckschritt zu erzeugen.
  4. Verfahren nach einem der vorstehenden Ansprüche, worin die Druckpaste mindestens 12 Gew.-% Feuchthaltemittel enthält.
  5. Verfahren nach einem der vorstehenden Ansprüche, worin das Feuchthaltemittel einen oder mehrere der Stoffe Harnstoff, Glycerin, Polyethylenglycol, Thiodiglycol und ethoxylierte Ester enthält.
  6. Verfahren nach einem der vorstehenden Ansprüche, worin die Druckpaste Plastisoldruckfarbenkomponenten enthält und worin die bedruckte Seite des Gewebes während des Wärmebehandlungschrittes (der Wärmebehandlungsschritte) mit einem Trennpapier abgedeckt ist.
EP90309697A 1989-09-05 1990-09-05 Bedrucken von Textilmaterialien Expired - Lifetime EP0416888B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8920004 1989-09-05
GB898920004A GB8920004D0 (en) 1989-09-05 1989-09-05 Printing of fabrics

Publications (3)

Publication Number Publication Date
EP0416888A2 EP0416888A2 (de) 1991-03-13
EP0416888A3 EP0416888A3 (en) 1991-12-11
EP0416888B1 true EP0416888B1 (de) 1996-01-17

Family

ID=10662530

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90309697A Expired - Lifetime EP0416888B1 (de) 1989-09-05 1990-09-05 Bedrucken von Textilmaterialien

Country Status (4)

Country Link
EP (1) EP0416888B1 (de)
AT (1) ATE133215T1 (de)
DE (1) DE69024882T2 (de)
GB (1) GB8920004D0 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10264833B2 (en) 2015-10-02 2019-04-23 Regwez, Inc. Garment with rewritable areas

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE141350T1 (de) * 1991-07-30 1996-08-15 Ciba Geigy Ag Verfahren zum fixieren von reaktivfarbstoffen auf cellulosehaltigem textilgut
EP2165974A1 (de) * 2008-09-17 2010-03-24 L. Brüggemann Kommanditgesellschaft Verfahren zur Bleiche von hydrolytisch gefälltem Titanoxidhydrat
DE102012109472B3 (de) * 2012-10-05 2014-01-23 Jürgen Bethke Werbebande und Verfahren zur Herstellung und Anbringung von Werbebanden für Veranstaltungsdekorationen
CN108589325A (zh) * 2018-04-23 2018-09-28 张建刚 一种数码印花感温变色面料的生产工艺

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1057055B (de) * 1955-09-21 1959-05-14 Monforts Fa A Verfahren und Vorrichtung zum kontinuierlichen Behandeln von Textilbahnen
DE3168222D1 (en) * 1980-03-13 1985-02-28 Ici Plc Textile printing process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10264833B2 (en) 2015-10-02 2019-04-23 Regwez, Inc. Garment with rewritable areas

Also Published As

Publication number Publication date
GB8920004D0 (en) 1989-10-18
DE69024882D1 (de) 1996-02-29
EP0416888A3 (en) 1991-12-11
ATE133215T1 (de) 1996-02-15
EP0416888A2 (de) 1991-03-13
DE69024882T2 (de) 1996-08-14

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