EP0490835B1 - Method and apparatus for polychromatic dyeing of fabrics - Google Patents

Method and apparatus for polychromatic dyeing of fabrics Download PDF

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Publication number
EP0490835B1
EP0490835B1 EP91830539A EP91830539A EP0490835B1 EP 0490835 B1 EP0490835 B1 EP 0490835B1 EP 91830539 A EP91830539 A EP 91830539A EP 91830539 A EP91830539 A EP 91830539A EP 0490835 B1 EP0490835 B1 EP 0490835B1
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EP
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Prior art keywords
fabric
predetermined
several
colours
injectors
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Expired - Lifetime
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EP91830539A
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German (de)
French (fr)
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EP0490835A1 (en
Inventor
Mario Scatizzi
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Tecnorama SRL
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Tecnorama SRL
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B11/00—Treatment of selected parts of textile materials, e.g. partial dyeing
    • D06B11/0056—Treatment of selected parts of textile materials, e.g. partial dyeing of fabrics
    • D06B11/0059—Treatment of selected parts of textile materials, e.g. partial dyeing of fabrics by spraying

Definitions

  • the subject of the present invention is a process for continuously printing polychrome designs on various materials, especially on fabrics, carpets and the like, and a device for carrying it out.
  • Document EP-A-306,568 also discloses a process which comprises the phases of displacing the fabric to be dyed by horizontal translation, of taking predetermined quantities of dye liquids of several different colors in corresponding containers at a predetermined frequency and applying the dyes of several colors thus taken in correspondence from predetermined adjacent points of the fabric.
  • the said method provides for the injection of dyes of several colors at different times and therefore without the possibility of any simultaneous combination of several colors.
  • FIG. 1 shows a perspective view of a device for printing polychrome drawings according to the invention
  • FIG. 2 shows a perspective view of the means for injecting dyes belonging to the device of FIG. 1
  • FIG. 3 shows a perspective view of the means of FIG. 2 in use position.
  • the means for withdrawing the coloring liquids from the respective containers (1) comprise tubes (3) for connection between the containers (1) and corresponding distribution manifolds (2 ) which distribute the dyes to a plurality of multiple nozzles (6) aligned transversely to the direction of movement of the fabric to be dyed: each multiple nozzle (6) being provided with several injectors (5), each of which is intended for inject a single color corresponding to a predetermined point of the material to be treated.
  • said means for feeding the fabric comprises a horizontal belt conveyor (12) which extends below said injectors (5).
  • the transfer of dyes to the distribution manifolds (2) can advantageously be carried out by means of pumps.
  • said transfer can be of the pressure type or also of the free fall type from above.
  • said support means comprise a rack (7) for housing the nozzles (5), which makes it possible to insert and remove with extreme ease said nozzles (5) for carry out maintenance or replacement.
  • a central electronic unit slaved to a digital processing system to manage the processing phases of the present process.
  • upstream of the line of multiple nozzles (6) are provided means (10) for drying the conveyor belt 12 and downstream of the nozzles (6) are provided means (9) for pressing the material. treated to facilitate penetration of color.
  • means (11) for suctioning excess colors.
  • means not shown in the figures for the sake of simplification, are provided for representing on a video monitor the image of the pictorial effect to be reproduced on the fabric being processed.
  • An electronic unit makes it possible to manage the removal of dyes from the respective containers (1) according to predetermined quantities and according to the predetermined colors.
  • the dyes thus removed are sent to the distribution manifolds (2), and the flow is adjusted by opening and closing the solenoid valves (4) with opening and closing times controlled by a preprogrammed electronic unit .
  • each injector (5) is connected with a color supply pipe, it is possible to inject a predetermined quantity of any color or color tone in correspondence of a predetermined point of the fabric by combining the colors coming from the abovementioned supply conduits in the pre-established proportions. There is thus obtained, at a predetermined point in the fabric, a polychrome effect which may even be different from that obtained in the other points of the same fabric by means of the injectors (5) of the other nozzles (6) of the device.

Abstract

Horizontal translation of the fabric with a predetermined speed and direction, taking up of a predetermined quantity of liquid colorants of various colours and application of the colorants of several matching colours of predetermined adjacent points of the fabric so as to obtain particular chromatic effects by virtue of the simultaneous combination of several colours are carried out in order continuously to print polychromatic patterns onto fabrics. The device comprises means for representing, on a video monitor, the image of the pictorial effect to be reproduced. <IMAGE>

Description

La présente invention a pour objet un procédé pour imprimer en continu des dessins polychromes sur divers matériaux, spécialement sur des tissus, tapis et similaires, et un dispositif pour sa mise en oeuvre.The subject of the present invention is a process for continuously printing polychrome designs on various materials, especially on fabrics, carpets and the like, and a device for carrying it out.

On connaît des dispositifs pour l'impression en continu des tissus.
Ces dispositifs connus présentent comme inconvénient que l'impression de couleurs différentes est obtenue en plusieurs phases distinctes, ce qui a pour conséquence l'impossibilité d'obtenir dans une zone réduite du tissu des effets chromatiques particuliers dûs à la combinaison simultanée de plusieurs couleurs.
Autrement dit, il n'est pas possible d'obtenir des tonalités ou des nuances de couleurs particulières en utilisant les dispositifs connus précités.Devices for continuous printing of fabrics are known.
These known devices have the disadvantage that the printing of different colors is obtained in several distinct phases, which results in the impossibility of obtaining in a reduced area of the fabric particular chromatic effects due to the simultaneous combination of several colors.
In other words, it is not possible to obtain particular tones or nuances of colors using the aforementioned known devices.

On connaît aussi par le document EP-A-306.568 un procédé qui comprend les phases de déplacer par translation horizontale le tissu à colorer, de prélever des quantités prédéterminées de liquides colorants de plusieurs couleurs différents dans des récipients correspondants suivant une fréquence prédéterminée et appliquer les colorants de plusieurs couleurs ainsi prélevés en correspondance de points adjacents prédéterminés du tissu.
Mais ledit procédé prévois l'injection des colorants de plusieurs couleurs en temps differents et donc sans la possibilité d'aucune combinaison simultanée de plusieurs couleurs.Document EP-A-306,568 also discloses a process which comprises the phases of displacing the fabric to be dyed by horizontal translation, of taking predetermined quantities of dye liquids of several different colors in corresponding containers at a predetermined frequency and applying the dyes of several colors thus taken in correspondence from predetermined adjacent points of the fabric.
However, the said method provides for the injection of dyes of several colors at different times and therefore without the possibility of any simultaneous combination of several colors.

Le but principal de ta présente invention est d'éliminer les inconvénients mentionnés.
Ce résultat a été atteint conformément à l'invention en utilisant un procédé selon les caracteristiques de la revendication 1. Ultérieures caracteristiques sont décrites dans les revendications 2,3,4.The main purpose of your present invention is to eliminate the drawbacks mentioned.
This result was achieved in accordance with the invention using a method according to the features of claim 1. Further features are described in claims 2,3,4.

Et pour mettre en oeuvre ledit procédé, on utilise un dispositif proposé dans la revendication 5.And to implement said method, a device is used proposed in claim 5.

Ultérieures caracteristiques sont décrites dans les revendications 6 à 10.Further characteristics are described in claims 6 to 10.

Les avantages obtenus grâce à la présente invention consistent essentiellement dans le fait qu'il est possible d'attribuer les tonalités et les nuances de couleur désirées aux points du tissu avec une précision considérable et selon un schéma prédéterminé, ce qui permet d'obtenir des effets picturaux et chromatiques tout à fait similaires à ceux obtenus en peignant le même tissu à la main et, par conséquent, en lui conférant une valeur esthétique élevée et un contenu qualitatif considérable.The advantages obtained thanks to the present invention essentially consist in the fact that it is possible to assign the desired tones and color nuances to the points of the fabric with considerable precision and according to a predetermined scheme, which makes it possible to obtain pictorial and chromatic effects quite similar to those obtained by painting the same fabric by hand and, consequently, giving it a high aesthetic value and considerable qualitative content.

Ces avantages et caractéristiques de l'invention ainsi que d'autres seront plus et mieux compris de chaque homme du métier à la lumière de la description qui va suivre et à l'aide des dessins annexés donnés à titre d'exemplification pratique de l'invention, mais à ne pas considérer dans le sens limitatif; dessins sur lesquels la FIG. 1 représente une vue en perspective d'un dispositif pour imprimer des dessins polychromes conformément à l'invention; la FIG. 2 représente une vue en perspective des moyens pour injecter des colorants appartenant au dispositif de la Fig. 1; la FIG. 3 représente une vue en perspective des moyens de la Fig. 2 en position d'utilisation.These advantages and characteristics of the invention as well as others will be more and better understood by each person skilled in the art in the light of the description which follows and with the aid of the appended drawings given by way of practical example of the invention, but not to be considered in the limiting sense; drawings in which FIG. 1 shows a perspective view of a device for printing polychrome drawings according to the invention; FIG. 2 shows a perspective view of the means for injecting dyes belonging to the device of FIG. 1; FIG. 3 shows a perspective view of the means of FIG. 2 in use position.

Réduit à sa structure essentielle et en référence aux figures des dessins annexés, le procédé pour imprimer en continu des dessins polychromes, en particulier sur des tissus, conformément à l'invention, comprend dans l'ordre les opérations suivantes:

  • déplacer par translation te tissu à colorer avec une vitesse et une direction prédéterminées;
  • prélever des quantités prédéterminées de liquides colorants de différentes couleurs dans des récipients correspondants suivant une séquence prédéterminée;
  • injecter les colorants ainsi prélevés sur le tissu, en correspondance de points adjacents prédéterminés.
Avantageusement, conformément à l'invention, il est prévu qu'en aval de la phase d'injection des colorants ait lieu le nettoyage du tissu coloré ou bien le fixage de la couleur injectée.
De la même manière, il est également prévu que l'image de l'effet pictural à reproduire sur le tissu soit représentée sur un moniteur vidéo.Reduced to its essential structure and with reference to the figures of the appended drawings, the process for continuously printing polychrome drawings, in particular on fabrics, in accordance with the invention, comprises the following operations in order:
  • translating the fabric to be colored with a predetermined speed and direction;
  • withdraw predetermined quantities of coloring liquids of different colors from corresponding containers in a predetermined sequence;
  • inject the dyes thus taken from the fabric, in correspondence with predetermined adjacent points.
Advantageously, in accordance with the invention, it is provided that downstream of the injection phase of the dyes takes place the cleaning of the colored fabric or else the fixing of the injected color.
Similarly, it is also expected that the image of the pictorial effect to be reproduced on the fabric is represented on a video monitor.

Pour ce qui concerne le dispositif pour mettre en oeuvre ledit procédé, conformément à l'invention, celui-ci comprend:

  • des moyens (3) pour prélever des quantités prédéterminées de liquides colorants de différentes couleurs dans des récipients (1) correspondants, suivant une séquence prédéterminée;
  • des moyens (2,4,5,6,8) pour injecter les colorants ainsi prélevés sur le tissu à colorer, en correspondance de points adjacents prédéterminés;
  • des moyens (12) pour la translation du tissu avec une vitesse et une direction prédéterminées;
  • des moyens (9,13) de support desdits moyens (2,4,5,6,8) pour injecter les colorants.
As regards the device for implementing said method, in accordance with the invention, it comprises:
  • means (3) for withdrawing predetermined quantities of coloring liquids of different colors from corresponding containers (1), in a predetermined sequence;
  • means (2,4,5,6,8) for injecting the dyes thus removed from the fabric to be colored, in correspondence with predetermined adjacent points;
  • means (12) for translating the fabric with a predetermined speed and direction;
  • means (9,13) for supporting said means (2,4,5,6,8) for injecting the dyes.

Selon une forme de réalisation préférée d'un dispositif selon l'invention, les moyens pour prélever les liquides colorants des récipients respectifs (1) comprennent des tubes (3) de connexion entre les récipients (1) et des collecteurs de distribution correspondants (2) qui permettent de distribuer les colorants vers une pluralité de buses multiples (6) alignées transversalement par rapport à la direction de déplacement du tissu à colorer: chaque buse multiple (6) étant munie de plusieurs injecteurs (5), chacun desquels étant destiné à injecter une seule couleur en correspondance d'un point prédéterminé de la matière à traiter. Par ailleurs, de préférence, lesdits moyens pour l'entra nement du tissu comprennent un transporteur à bande horizontal (12) qui s'étend au-dessous desdits injecteurs (5).
Le transfert des colorants aux collecteurs de distribution (2) peut être avantageusement effectué au moyen de pompes. De la même manière, avantageusement, ledit transfert peut être du type à pression ou également du type à chute libre par le haut.
Avantageusement, il est prévu que te nombre d'injecteurs (5) compris dans une buse multiple (6) est égal au nombre de liquides colorants contenus dans les récipients (1), de manière à pouvoir obtenir n'importe quelle combinaison des couleurs disponibles en un point prédéterminé du tissu, selon des proportions prédéterminées.
En outre, avantageusement, il est prévu que la distribution des liquides colorants auxdites buses multiples soit réglée au moyen d'étectrovannes (4) dont les temps d'ouverture et de fermeture sont commandés au moyen d'une unité électronique de commande, non représentée sur les figures pour des motif de simplification: lesdites électrovannes (4) étant avantageusement reliées aux injecteurs multiples (5) au moyen de conduites (8). De la même manière, avantageusement, il est également prévu que lesdits moyens de support comprennent un râtelier (7) pour le logement des buses (5), lequel permet d'insérer et d'enlever avec une extrême facilitè lesdites buses (5) pour procéder à leur entretien oé à leur remplacement. Il est également prévu, avantageusement, qu'une unité centrale électronique asservie à un système d'élaboration numérique gère le déroulement des phases de traitement du présent procédé.
En outre, en amont de la ligne de buses multiples (6) sont prévus des moyens (10) de séchage de la bande du transporteur 12 et en aval des buses (6) sont prévus des moyens (9) pour le pressage de la matière traitée pour faciliter la pénétration de la couleur. Pour faciliter le nettoyage du tissu sont prévus, même en aval de la ligne de buses (6), des moyens (11) d'aspiration des couleurs en excès.
Par ailleurs, avantageusement, des moyens, non représentés sur les figures par esprit de simplification, sont prévus pour représenter sur un moniteur vidéo l'image de l'effet pictural à reproduire sur le tissu en cours de traitement.According to a preferred embodiment of a device according to the invention, the means for withdrawing the coloring liquids from the respective containers (1) comprise tubes (3) for connection between the containers (1) and corresponding distribution manifolds (2 ) which distribute the dyes to a plurality of multiple nozzles (6) aligned transversely to the direction of movement of the fabric to be dyed: each multiple nozzle (6) being provided with several injectors (5), each of which is intended for inject a single color corresponding to a predetermined point of the material to be treated. Otherwise, preferably, said means for feeding the fabric comprises a horizontal belt conveyor (12) which extends below said injectors (5).
The transfer of dyes to the distribution manifolds (2) can advantageously be carried out by means of pumps. Likewise, advantageously, said transfer can be of the pressure type or also of the free fall type from above.
Advantageously, provision is made for the number of injectors (5) included in a multiple nozzle (6) to be equal to the number of coloring liquids contained in the containers (1), so that any combination of the colors available can be obtained at a predetermined point in the fabric, according to predetermined proportions.
In addition, advantageously, provision is made for the distribution of the coloring liquids to said multiple nozzles to be adjusted by means of solenoid valves (4), the opening and closing times of which are controlled by means of an electronic control unit, not shown. in the figures for reasons of simplification: said solenoid valves (4) being advantageously connected to multiple injectors (5) by means of pipes (8). Likewise, advantageously, it is also provided that said support means comprise a rack (7) for housing the nozzles (5), which makes it possible to insert and remove with extreme ease said nozzles (5) for carry out maintenance or replacement. he is also advantageously, provision is made for a central electronic unit slaved to a digital processing system to manage the processing phases of the present process.
In addition, upstream of the line of multiple nozzles (6) are provided means (10) for drying the conveyor belt 12 and downstream of the nozzles (6) are provided means (9) for pressing the material. treated to facilitate penetration of color. To facilitate cleaning of the fabric, there are provided, even downstream of the nozzle line (6), means (11) for suctioning excess colors.
Furthermore, advantageously, means, not shown in the figures for the sake of simplification, are provided for representing on a video monitor the image of the pictorial effect to be reproduced on the fabric being processed.

Le fonctionnement est le suivant.
Une unité électronique permet de gérer le prélèvement des colorants dans les récipients (1) respectifs suivant des quantités préétablies et en fonction des couleurs prédéterminées. Les colorants ainsi prélevés sont tranmis aux collecteurs de distribution (2), et le réglage du flux est réalisé grâce à l'ouverture et à la fermeture des électrovannes (4) avec des temps d'ouverture et de fermeture commandés par une unité étectronique préprogrammée. Du fait qu'à chaque injecteur (5) est relié un conduit d'amenée de couleur, il est possible d'injecter une quantité prédéterminée de n'importe quelle couleur ou tonalité de couleur en correspondance d'un point prédéterminé du tissu en combinant les couleurs provenant des conduits d'amenée précités dans les proportions préétablies. On obtient ainsi, en un point prédéterminé du tissu, un effet polychrome qui peut même être différent de celui obtenu dans les autres points du même tissu au moyen des injecteurs (5) des autres buses (6) du dispositif.The operation is as follows.
An electronic unit makes it possible to manage the removal of dyes from the respective containers (1) according to predetermined quantities and according to the predetermined colors. The dyes thus removed are sent to the distribution manifolds (2), and the flow is adjusted by opening and closing the solenoid valves (4) with opening and closing times controlled by a preprogrammed electronic unit . Because each injector (5) is connected with a color supply pipe, it is possible to inject a predetermined quantity of any color or color tone in correspondence of a predetermined point of the fabric by combining the colors coming from the abovementioned supply conduits in the pre-established proportions. There is thus obtained, at a predetermined point in the fabric, a polychrome effect which may even be different from that obtained in the other points of the same fabric by means of the injectors (5) of the other nozzles (6) of the device.

Claims (10)

  1. Process for the continuous printing of polychrome designs, particularly on fabrics and similar materials, consisting of the phases of: moving the fabric to be coloured by horizontal movement with a predetermined speed and in a predetermined direction, taking predetermined quantities of colouring liquids of several different colours into the corresponding receptacles, according to a predetermined sequence, applying the colouring of several colours taken in this way corresponding to the predetermined adjacent points of the fabric, characterized in that it delivers each colouring taken from the respective receptacle to a corresponding distribution collector, in order to then distribute and regulate a predetermined quantity of colouring of each collector to several multiple buses fitted with corresponding injectors and finally to inject several different colourings at the same time from corresponding injectors, corresponding to several predetermined adjacent points of the fabric, repeating the said phases so as to obtain the desired polychrome design.
  2. Process according to Claim 1, characterized in that it includes the cleaning by suction of excess colours on the treated fabric,
  3. Process according to Claim 1, characterized in that it includes the drying of the transport belt of the coloured fabric.
  4. Process according to Claim 3, characterized in that the said drying is obtained by suction of the air corresponding to the lower part of the transport belt.
  5. Device for printing polychrome designs according to the process of Claim 1, including the means (3) for taking the predetermined quantities of colouring liquids of different colours into the corresponding receptacles (1) following a predetermined sequence, means of injecting the colourings taken in this way on the fabric to be coloured corresponding to predetermined points, means (12) for the horizontal movement of the fabric with a predetermined speed and in a predetermined direction, means of support for the means of injecting the colourings, characterized in that the said means for injecting the colourings include:
    - distribution collectors (2) connected to the receptacles (1) for the colourings by means of corresponding pipes (3);
    - several buses (6) transversely aligned relative to the direction of fabric movement, each of which is provided with several injectors (5);
    - several electrical valves (4) serving the said distribution collectors (2) and also connected to the said injectors (5) by means of ducts (8) which are intended to regulate the flow of the colours coming from the said collectors (2) to the said injectors (5);
    - a preprogrammed electronic unit to control the opening and closing of the above-mentioned electrical valves (4), with predetermined opening and closing times.
  6. Device according to Claim 5, characterized in that the said means of support of the means of injecting colours consist of a grid (7) to locate the buses (6).
  7. Device according to Claim 5, characterized in that it includes means (9) for pressing the coloured fabric.
  8. Device according to Claim 5, characterized in that it includes means of suction (10) to permit the drying of the transporter belt (12).
  9. Device according to Claim 5, characterized in that it includes means of suction (11) for excess colours to permit cleaning of the fabric.
  10. Device according to Claim 5, characterized in that it includes means for representing on a video monitor the image of the pictorial effect to be reproduced on the fabric.
EP91830539A 1990-12-07 1991-12-06 Method and apparatus for polychromatic dyeing of fabrics Expired - Lifetime EP0490835B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT04552390A IT1243243B (en) 1990-12-07 1990-12-07 SYSTEM FOR THE REALIZATION OF POLYCHROMATIC DRAWINGS ON VARIOUS MATERIALS AND TEXTILES IN PARTICULAR AND RELATED MACHINERY
IT4552390 1990-12-07

Publications (2)

Publication Number Publication Date
EP0490835A1 EP0490835A1 (en) 1992-06-17
EP0490835B1 true EP0490835B1 (en) 1995-12-06

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EP91830539A Expired - Lifetime EP0490835B1 (en) 1990-12-07 1991-12-06 Method and apparatus for polychromatic dyeing of fabrics

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US (1) US5228161A (en)
EP (1) EP0490835B1 (en)
AT (1) ATE131230T1 (en)
CA (1) CA2057207C (en)
DE (1) DE69115230D1 (en)
IT (1) IT1243243B (en)

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Publication number Publication date
IT9045523A0 (en) 1990-12-07
EP0490835A1 (en) 1992-06-17
CA2057207C (en) 1999-06-15
IT9045523A1 (en) 1992-06-08
DE69115230D1 (en) 1996-01-18
CA2057207A1 (en) 1992-06-08
US5228161A (en) 1993-07-20
IT1243243B (en) 1994-05-26
ATE131230T1 (en) 1995-12-15

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