EP0047058B1 - Verwendung reaktiver Reagenzien auf Substraten - Google Patents

Verwendung reaktiver Reagenzien auf Substraten Download PDF

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Publication number
EP0047058B1
EP0047058B1 EP81303274A EP81303274A EP0047058B1 EP 0047058 B1 EP0047058 B1 EP 0047058B1 EP 81303274 A EP81303274 A EP 81303274A EP 81303274 A EP81303274 A EP 81303274A EP 0047058 B1 EP0047058 B1 EP 0047058B1
Authority
EP
European Patent Office
Prior art keywords
foam
reagent
collapse
rate
interface
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
Application number
EP81303274A
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English (en)
French (fr)
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EP0047058A3 (en
EP0047058A2 (de
Inventor
Alfred Emil Lauchenauer
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.)
Albany International Corp
Original Assignee
Adnovum 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 Adnovum AG filed Critical Adnovum AG
Priority to AT81303274T priority Critical patent/ATE12665T1/de
Publication of EP0047058A2 publication Critical patent/EP0047058A2/de
Publication of EP0047058A3 publication Critical patent/EP0047058A3/en
Application granted granted Critical
Publication of EP0047058B1 publication Critical patent/EP0047058B1/de
Expired 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
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/50—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with hydrogen peroxide or peroxides of metals; with persulfuric, permanganic, pernitric, percarbonic acids or their salts
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L1/00—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods
    • D06L1/12—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods using aqueous solvents
    • D06L1/14—De-sizing
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
    • D06L4/10—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/38—Oxides or hydroxides of elements of Groups 1 or 11 of the Periodic Table
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
    • D06M16/003—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic with enzymes or microorganisms
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
    • D06M23/04—Processes in which the treating agent is applied in the form of a foam

Definitions

  • the present invention relates to the reaction of reagents with substrates.
  • DE-A-2214377 (GB-A-1 430 184) relates to a method of finishing a flat textile article which comprises applying thereto a foamed layer of desired treating agents, the height of which is controlled according to the amount of treating agents which it is desired to transfer and subsequently causing the complete destruction of the foam to transfer all the agents to the textile web.
  • FR-A-2 758 486 also relates to a method of the type just described with reference to DE-A-2214377, but with the proviso that instead of causing the foam to collapse or be destroyed, a positive or negative pressure is applied to the foam carrying article, causing the totality of the foam to be rapidly drawn thereinto.
  • a method of treating a surface with reagents which method comprises:
  • the surface to be treated may be the surface of a substrate having a continuous surface such as a sheet, a filamentary material such as natural or synthetic fibres, a woven material including a knitted material or a random mat formed of natural and/or synthetic fibres.
  • the reagent may be any reagent capable of interacting either physically, biologically or chemically with the material of said surface.
  • the reagent is preferably present in an aqueous solution and the concentration of the reagent can be considerably in excess of that hitherto employed since the amount of reagent applied to the material is determined by the volume of the foam with respect to the initial volume of the reagent containing liquid and by the amount of agent released to the substrate by the collapse of the foam, and is not dependant entirely upon the concentration of the reagent in the initial solution prior to foaming.
  • the collapse of the foam may be caused by heating the interface to a temperature at or above the boiling point of the liquid phase.
  • the collapse of the foam at the interface may be caused by reducing the viscosity of the foam sufficiently to allow the liquid from which it is formed to contact said surface.
  • the rate of collapse of the foam layer may be adjusted to adjust the rate of application of the reagent.
  • Thermo- decomposition of the foam by heating of the interface may be effected by the application of, for example, hot air or steam to the reverse side of the material to be treated or by heat transmitted from, or emittedly, the surface of solid bodies.
  • Collapse of the foam may also be effected by incorporating within the foam, destabilising agents which serve to reduce the viscosity of the liquid from which the foam is formed, for example when the temperature of the foamed liquid is raised.
  • the residual reagent of the foam may be removed by washing, i.e. with water.
  • highly active systems may be applied to substrates or materials in an easily controllable manner and at very high rates of interaction by controlling not the concentration of the reagent in the treating bath, but the amount of the bath which at any given moment is released by foam collapse at the interface, and brought in contact with the material to be treated.
  • the bath containing the reagent is applied to the substrate in the form of the foam; the main dosaging factor is the rate of decomposition of the foam layer on the substrate in particular the layer of foam directly in contact with the substrate surface.
  • the process comprises the application in foam form of agents capable of interacting with material of the substrate to the substrate surface and causing the foam'layer, in particular the interface foam layer to collapse at the rate desired and to terminate the interaction by removing or rendering inactive said agents where the desired degree of interaction has been achieved.
  • the preferred method for gradually collapsing the interface layer of the foam i.e. the layer directly in contact with the surface of the substrate is destabilisation of the foam particularly through the application of heat and/or destabilising agents.
  • a particularly suitable form of the process comprises in applying an aqueous system in foam form and applying heat to the substrate preferably from the side opposite to that treated with the foam, to generate temperatures which are higher than the boiling point of water, thus causing the interface layer of the foam to collapse and exposing the surface of the substrate to a new layer of cells of the foam containing agent capable of interacting with said substrate.
  • the incremental application of agents capable of interaction of the material of the substrate according to the present invention is achieved by gradually increasing the flow rate of the foam, i.e. by decreasing the viscosity of the foam to a degree which enables it to diffuse in or onto the substrate as a liquid, the rate of diffusion being governed by the rate of collapse of the interface foam layer.
  • heat may also be applied to the foam coated side of the substrate causing the foam surface to collapse in a gradual and controllable manner.
  • the liquid released by the collapse of the foam layer dilutes the next layer of the foam and thus increases its flow rate by lowering its blow rate thereby resulting in further collapse of the foam so that the liquid thus generated finally diffuses gradually into the substrate at and through the foam substrate interface layer.
  • the flow rate or flow tendency of any particular foam decreases with the blow rate, i.e. the degree to which the bath has been foamed.
  • the blow rate may be expressed as the ratio between the volume of the foam of the bath and the bath before foaming, that is to say, a blow rate of 20:1 means that the bath has been foamed to twenty times the original volume.
  • the flow rate or flow tendency may be determined by measuring the volume of the foam flowing through an orifice or tube of defined diameter during a given time, such as, per minute, or by measuring the angle at which a plate which is coated with a foam has to be tilted to start flow of the foam or by other similar methods.
  • An alternative method to that outlined above may be applicable to substrates not permeable to hot air or not easily capable of transmitting heat from the reverse side to the interface with the foam layer. It consists, as described above, in increasing the flow tendency of the foam by gradually releasing liquid from collapsing layers of the foam thus diluting underlying layers of the foam and lowering their blow rate. Some of the liquid released from the collapsing layers of the foam has been found to travel through underlying layers of the foam along walls of foam cells to the interface foam layer and into the substrate providing also the gradual release of agent to and/or into the substrate itself.
  • Liquid applied to the surface of the foam layer, or released by the collapse of the top layers of foam (facing away from the substrate) in this alternative method thus will flow through the foam onto the surface of the substrate, assisted by the lowering of the blow rate of the foam resulting from the flow of liquid.
  • Thermal decomposition of the interface layer of the foam or of the foam layer per se may be suitable for adjusting the rate of interaction by simply varying the reaction temperature and the foam decomposition speed.
  • the steam released in many cases will benefit the interaction by providing fast heat transfer and thorough penetration.
  • Thermal decomposition of the interface layer may be assisted or substituted by physico-chemical means conductive to destabilisation of the foam, for example, by foam destabilisation agents (agents increasing surface tension), reducing effectiveness of foaming agents or of foam stabilisers used to produce and/or stabilise the foam per se.
  • foam destabilising agents may be present in the substrate to be heated or treated and may be applied to the substrate or to the foam front layer during the interaction period.
  • the further supply of the agents present in the foam with the substrate or material to be treated is terminated by removing the foam layer not yet decomposed, by stopping the front layer decomposition of the process and/or by rendering the system inactive. Since in most cases it will be necessary to remove unused reagents, decomposition products of reagents or ancillary agents present in the system, washing or rinsing of the treated material will be the most frequently used method to terminate the interaction.
  • the bath is applied in the form which contains a mixture of agents capable of achieving different effects in consentive continuous treatments without rinsing between steps, for example, in the boiling off and bleaching with a bath containing alkali and bleaching agent such as for instance hydrogen peroxide, which is followed by a mercerising treatment, it is unnecessary (and undesirable from an economical point of view) to rinse after the alkaline peroxide has boiled off and bleaching preparation has been applied to cellulose-containing textile sheet material.
  • alkali and bleaching agent such as for instance hydrogen peroxide
  • the sheet material is fed into equipment capable of holding or even increasing the dimensions of the sheet material, in particular its width, such as for instance tenter-like equipment, and the concentration of the caustic is increased to mercerising strength and beyond by evaporation through the action of heat, care being taken that the boil-off and bleaching bath contains an amount of alkali hydroxide sufficient for giving a solution of mercerising strength when water is evaporated while the amount of water present in the fabric is still at a level at least equal to 25%, preferably at least 30% of the cellulosic fibre material present in the sheet material.
  • one may apply additional amounts of caustic after bleaching/boiling off is completed the application of such additional caustic in the form of foam has the advantage of keeping the total amount of water low and thus saves energy in drying).
  • the caustic may then be removed by neutralising and/or rinsing only after this partial drying.
  • peroxide may be applied to the caustic containing sheet material as an aqueous solution containing virtually no or only small amounts of caustic.
  • peroxide may be applied to the caustic containing sheet material as an aqueous solution containing virtually no or only small amounts of caustic.
  • Still another variation consists in bleaching and boiling off with a preparation applied according to the invention, holding or increasing the dimensions of the sheet material while water is evaporated to concentrate ' the caustic, and removing the caustic by rinsing and/or neutralising only after a bleaching agemt has been applied to and reacted with the sheet material.
  • the process may be a continuous one comprising the steps of applying a foamed agent to at least one surface of a moving sheet, applying means capable of collapsing the interface or front layer of the foam under conditions as regards rate of foam, decomposition and interaction temperature providing interaction to the degree desired within the interaction period determined by the duration of contact of the foam agent with the substrate while the foam collapsing system is effective, and thereafter terminating the treatment by deactivating the system causing the foam collapse at the foam substrate interface and removing unused reagents and reagent decomposition by rinsing.
  • dying formulations may be applied by the method of the invention. If the sheet material contains or consists of cellulosic fibres, desizing, boiling off (removal of wax and other impurities present in the surface of the natural cellulosic fibres), bleaching and even mercerising (or other caustic treatments) may be carried out.
  • sheet material there is to be understood not only coherent sheets such as plastic, metal or wood or paper, fabrics, woven, non-woven or knitted, but also particulate or fibrous material treated in a form of sheets, for example, materials arranged in the form of a thin layer carried on or supported by a conveyor belt or like structure, preferably permeable to liquids and air.
  • Webs consisting of loose fibres, slivers, rovings, and card webs are examples of such sheet materials consisting of a multitude of essentially unbonded elements arranged and treated in the form of a sheet.
  • Webs of loose cotton fibres for example may be boiled off, cleaned for the removal of dust, cotton seeds, wax, etc. and bleached in sheet form according to the present invention.
  • Material may be treated according to the present invention in filamentary form, the filamentary material being treated either as single strands or as a multitude of strands travelling on parallel courses.
  • the foam itself may be generated by blowing compressed air through a tube which carries a porous plate at an outlet end thereof, the tube being immersed in a bath of the reagent.
  • the blow rate of the foam is dependent upon the foaming characteristics of the original bath.
  • a cotton fabric in grey state (33 picks and 20 ends per centimetre, yarn count Ne 12 for the warp, 16 for the filling, weight 270 grams per square metre) was treated as follows:-A boil-off and desizing formulation containing:
  • This foam was applied to one surface of the fabric in a layer 2 centimetres thick.
  • the side of the fabric not treated with foam was brought into contact with a metal surface having a temperature of 300°C for 40 seconds (interaction time).
  • interaction time During this period interface layers of foam were destroyed consecutively, the foam sheet previously applied to the fabric thus gradually collapsing from bottom to top, exposing fresh layers of foamed reagent with the collapse of each interface foam layer.
  • the fabric was rinsed to remove unused foam reagent and the other agents present in the bath.
  • the heaby cotton fabric was found to be uniformly (i.e. all over and all through) desized, all cotton seeds were removed and a marked lightening of the shade was observed (i.e. wax and coloured impurities had been removed by the treatment). No damage caused by the treatment could be detected, the textile strength was virtually the same as before the treatment, and the degree of polymerisation was 2550 (determination according to Swiss National Standard Method 195'598).
  • Example 2 The same fabric as in Example 1 was treated with the same bath, the only difference being that collapse of interface foam layers was effected by convection of hot air and radiation emanating from a metal plate temperature 300°C arranged in a plane parallel to the plane of the fabric at a distance of 0.5 centrimetres underneath the fabric.
  • the interaction time was 60 seconds, the after treatment and the effects produced were identical to those of Example 1.
  • Example 1 The treatment of Example 1 was repeated with a light weight cotton sateen (grey state, 68/45 yarns centimetre, yarn. count Ne 46/42, weight 90 grams/square metre. The formation was the same as in Example 1, the thickness of the foam layer was 0.5 centimetres.
  • Example 1 The fabric described in Example 1 was bleached with a foamed unstabilised protide bleaching bath of the following composition:
  • the bleaching treatment was applied to the fabric after desizing and boiling off according to Example 1.
  • the bath was turned into a foam (degree of foaming 20:1) as described in Example 1, and applied in foamed form to one side of the fabric in a thickness of 2 centimetres.
  • Interface foam collapse was effected by contact heat as described in Example 1, the time of interaction being 40 seconds.
  • the bleaching effect obtained was about identical to effects produced by conventional protide bleaching with much longer reaction times (whiteness 67.00% against 55.8 before the treatment). No tensile strength or degree of polymerisation damage could be found.
  • Example 1 The fabric described in Example 1 was in one step desized, boiled off and bleached, using the following procedure.
  • This bath was foamed and applied to the grey fabric as described in Example 1 (degree of foaming 20:1, foam layer thickness 2 centimetres). Interface foam collapse was effected as described in Example 1, the time of Internation being 40 seconds.
  • Example 5 When a cotton sateen described in Example was treated with the bath of Example 5, the conditions of the treatment otherwise being those of Example 3, complete desizing, complete removal of seeds and excellent wettability were obtained.
  • Removal of the agents after the interaction period was effected by applying a coating of foamed washing neutralising solution (blow ratio 1:30, bath containing 10 grams per litre of acetic acid and 3 grams per litre of Sandozin@ N1 (non-ionic wetting agent), thickness of foam layer 5 centimetres and sucking the foam through the web by means of vacuum slots arranged underneath the wire net conveyor belt.
  • foamed washing neutralising solution low ratio 1:30, bath containing 10 grams per litre of acetic acid and 3 grams per litre of Sandozin@ N1 (non-ionic wetting agent)
  • the treatment was treated twice with a foamed washing solution containing 1 gram/litre of a non-ionic foaming agent (Sandozin@ N1, sandoz), total layer thickness 10 centimetres, blow rate 10:1.
  • the neutralizing and the washing baths were foamed in one example as described in Example 1, in another test by means of passing the bath through a commercially available continuous foamer (manufactured by Bombi, Settimello, Italy). Additional tests showed that the bleaching and boiling off baths used in previous examples could also be foamed in the continuous foamer.
  • a cotton print cloth (120 grams per square metre) containing a starch size in grey state was coated with a foamed enzymatic desizing preparation containing per litre 25 millilitres of Rupid- ase and 2 millilitres of a non-ionic wetting agent (Sandozin@ NIT). The foaming degree was 1:40.
  • the fabric thus coated was .subjected to a heat treatment consisting of guiding the fabric at a distance of 4 millilitres over a hot metal plate having a temperature of 300 centigrade degrees. The action of heat lasting 30 seconds. After the fabric was rinsed hot and cold, no starch could any longer be detected on the fabric.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • Microbiology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)

Claims (11)

1. Verfahren zur Behandlung einer Fläche Reaktionsmitteln mit den Verfahrensschritten
(i) Bilden eines Reaktionsmittels in einer flüssigen Phase;
(ii) Ausbilden eines Schaumes aus der flüssigen Phase;
(iii) Aufbringen des Schaumes auf die zu behandelnde Fläche, um auf der Fläche eine Schaumschicht zu bilden;
(iv) Veranlassen des Schaumes, fortschreitens zusammenzufallen und Auf bringen des Reaktionsmittels auf der Fläche;

dadurch gekennzeichnet, daß das Zusammenfallen des Schaumes im Bereich der Grenzschicht des Schaumes zur Fläche ohne Vakuum erfolgt und anschließend eine weitere Zuführung von Reaktionsmittel durch Entfernen des Schaumes von der Fläche, Beendigung des Entmischen des Schaumes im Bereich der Grenzschicht oder dadurch erfolgt, daß der noch auf der Fläche befindliche Schaum inaktiv gemacht wird.
2. Verfahren nach Anspruch 1 dadurch gekennzeichnet, daß es sich bei der Fläche um die Fläche eines Substrates mit einer in sich geschlossenen Fläche handelt, um die Fläche eines Substrates aus Fäden bzw. Fasern oder um ein gewebtes Substrat oder schließlich um ein Substrat aus reglos angeordneten Fasern handelt.
3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Reaktions mittel physikalisch, biologisch oder chemisch mit dem Material der Fläche zu reagieren vermag.
4. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Reaktionsmittel in der Form einer wässrigen Lösung verwendet wird und daß die Konzentration so bestimmt ist, daß die Einwirkungsrate des Reaktions mittels auf das Material der Fläche durch das Volumen des Schaumes und dessen Rate des Zusammenfallens bestimmt wird.
5. Verfahren. nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Zusammenfallen des Schaumes bewirkt wird durch Erwärmen der Grenzschicht des Schaumes zur Fläche auf die Temperatur des Kochpunktes der flüssigen Phase oder auf eine höhere Temperatur oder durch Reduktion der Viskosität des Schaumes in einem Maße, daß den Schaum bildende Flüssigkeit mit der Fläche in Berührung zu kommen vermag, wobei die Einwirkungsrate des Reaktionsmittels auf die Fläche gesteuert wird.
6. Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß das Zusammenfallen des Schaumes durch Einführen eines Schaumdestabilisators in die Nähe der Fläche gesteuert wird, wobei die Rate der Einführung des Schaumstabilisators die Rate des Zusammenfallens des Schaumes steuert.
7. Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die thermische Entmischung des Schaumes in der Grenzschicht des Schaumes zur Fläche durch ein physikalisch-chemisches Mittel unterstützt wird, das leitend ist zur Destabilisation des Schaumes durch einen Wirkstoff, der in der Lage ist, die Flächentemperatur zu erhöhen oder durch Verringerung der Wirksamkeit der schaumbildenden Wirkstoffe oder Schaumstabilisatoren, wie sie zur Bildung und/ oder zum Stabilisieren des Schaumes an sich verwendet werden.
8. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Schaum aus einem Bad gebildet wird, das ein Gemisch aus Wirkstoffen enthält, die in der Lage sind, mit unterschiedlichen Wirkungen auf die Fläche einzuwirken und zwar in mehreren aufeinanderfolgenden Behandlungsschritten ohne Spülen zwischen den einzelnen Behandlungsschritten.
9. Verfahren nach Anspruch 8, dadurch gekennzeichnet, daß die Behandlung ein Auskochen und ein Bleichen einschließt, wobei der Schaum aus einem Bad gebildet wird, das Alkali und ein Bleichmittel enthält und daß anschließend ein Mercerisieren erfolgt, wobei nach Abschluß des Bleichens das behandelte Folien- oder Bogenmaterial einer Einrichtung zugeführt wird, die in der Lage ist, die Abmessungen der Folie bzw. des Bogens zu erhalten oder zu vergrößern, worauf Schaum aufgetragen wird, wobei die Alkalikonzentration auf den zum Mercerisieren erforderlichen Wert und darüber angehoben wird, der Schaum durch Anwendung von Wärme zum Zusammenfallen gebracht wird, worauf weitere Wärme zugeführt wird, um Wasser auszutreiben, das sich beim Zusammenfallen des Schaumes in diesem bildet, wobei die Menge des nach der Behandlung vorhandenen Wassers bei einem Textilmaterial als Folie bzw. Bogen zumindest 25% des Zellulosefaseranteiles in dem Material ist.
10. Verfahren nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß das den Schaum bildende Reaktionsmittel ein Enzym zur Behandlung des Substrates einschließt.
11. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Schaum durch Einblasen komprimierter Luft durch ein Rohr mit einer porösen Platte am Auslaß des Rohres gebildet wird, wobei das Rohrende mit der porösen Platte in das Bad mit den zu schäumenden Reaktionsmitteln eingetaucht ist.
EP81303274A 1980-07-22 1981-07-16 Verwendung reaktiver Reagenzien auf Substraten Expired EP0047058B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81303274T ATE12665T1 (de) 1980-07-22 1981-07-16 Verwendung reaktiver reagenzien auf substraten.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB8023880 1980-07-22
GB8023880 1980-07-22
GB8106557 1981-03-02
GB8106557 1981-03-02

Publications (3)

Publication Number Publication Date
EP0047058A2 EP0047058A2 (de) 1982-03-10
EP0047058A3 EP0047058A3 (en) 1982-03-17
EP0047058B1 true EP0047058B1 (de) 1985-04-10

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EP81303274A Expired EP0047058B1 (de) 1980-07-22 1981-07-16 Verwendung reaktiver Reagenzien auf Substraten

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EP (1) EP0047058B1 (de)
DE (1) DE3169817D1 (de)
IN (1) IN154477B (de)

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CN102877313B (zh) * 2012-08-27 2015-03-04 广州市高晟染整设备有限公司 一种超低浴比经轴染色方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2214377A1 (de) * 1972-03-24 1973-10-04 Hoechst Ag Verfahren und vorrichtung zum faerben und/oder ausruesten von textilen flaechengebilden

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL234606A (de) * 1957-12-24
US3257483A (en) * 1963-11-05 1966-06-21 Specialty Converters Method of applying foam to fabrics
DE2402342A1 (de) * 1974-01-18 1975-07-31 Hoechst Ag Verfahren und vorrichtung zum faerben und/oder ausruesten von textilen flaechengebilden
GB1585874A (en) * 1977-05-14 1981-03-11 Union Carbide Corp Process of treating porous substrates with foam
FR2391305A1 (fr) * 1977-05-16 1978-12-15 Union Carbide Corp Procede pour traiter des etoffes par une mousse

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DE2214377A1 (de) * 1972-03-24 1973-10-04 Hoechst Ag Verfahren und vorrichtung zum faerben und/oder ausruesten von textilen flaechengebilden

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DE3169817D1 (en) 1985-05-15
EP0047058A3 (en) 1982-03-17
IN154477B (de) 1984-11-03
EP0047058A2 (de) 1982-03-10

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