EP3839121B1 - Machine d'application d'une mousse pour le prétraitement de substrats textiles - Google Patents

Machine d'application d'une mousse pour le prétraitement de substrats textiles Download PDF

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Publication number
EP3839121B1
EP3839121B1 EP20215819.2A EP20215819A EP3839121B1 EP 3839121 B1 EP3839121 B1 EP 3839121B1 EP 20215819 A EP20215819 A EP 20215819A EP 3839121 B1 EP3839121 B1 EP 3839121B1
Authority
EP
European Patent Office
Prior art keywords
foam
substrate
machine
dosing
machine according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP20215819.2A
Other languages
German (de)
English (en)
Other versions
EP3839121A2 (fr
EP3839121C0 (fr
EP3839121A3 (fr
Inventor
Gianluca BRENNA
Luca RIO
Lorenzo MONDELLI
Silvio FARAGO'
Daniele PACHERA
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.)
MTL Meccanica Tessile Lariana Srl
Ratti SpA Benefit Soc
Stamperia Di Lipomo SpA
Original Assignee
MTL Meccanica Tessile Lariana Srl
Ratti SpA Benefit Soc
Stamperia Di Lipomo SpA
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 MTL Meccanica Tessile Lariana Srl, Ratti SpA Benefit Soc, Stamperia Di Lipomo SpA filed Critical MTL Meccanica Tessile Lariana Srl
Publication of EP3839121A2 publication Critical patent/EP3839121A2/fr
Publication of EP3839121A3 publication Critical patent/EP3839121A3/fr
Application granted granted Critical
Publication of EP3839121C0 publication Critical patent/EP3839121C0/fr
Publication of EP3839121B1 publication Critical patent/EP3839121B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • D06B19/00—Treatment of textile materials by liquids, gases or vapours, not provided for in groups D06B1/00 - D06B17/00
    • D06B19/0088—Treatment of textile materials by liquids, gases or vapours, not provided for in groups D06B1/00 - D06B17/00 using a short bath ratio liquor
    • D06B19/0094—Treatment of textile materials by liquids, gases or vapours, not provided for in groups D06B1/00 - D06B17/00 using a short bath ratio liquor as a foam
    • 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
    • D06B1/00—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
    • D06B1/10—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by contact with a member carrying the treating material
    • D06B1/14—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by contact with a member carrying the treating material with a roller
    • D06B1/141—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by contact with a member carrying the treating material with a roller where an element is used to mitigate the quantity of treating material on the roller
    • 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
    • D06B1/00—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
    • D06B1/10—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by contact with a member carrying the treating material
    • D06B1/14—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by contact with a member carrying the treating material with a roller
    • D06B1/144—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by contact with a member carrying the treating material with a roller the treating material being kept in a trough formed between the roller and non-rotating elements
    • 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
    • D06B1/00—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
    • D06B1/10—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by contact with a member carrying the treating material
    • D06B1/14—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by contact with a member carrying the treating material with a roller
    • D06B1/148—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by contact with a member carrying the treating material with a roller the treating material being supplied to the roller by spraying or pouring
    • 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
    • D06B1/00—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
    • D06B1/10—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by contact with a member carrying the treating material
    • D06B1/14—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by contact with a member carrying the treating material with a roller
    • D06B1/145—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by contact with a member carrying the treating material with a roller the treating material being kept in the trough formed between two or more rollers
    • 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
    • D06B11/0079—Local modifications of the ability of the textile material to receive the treating materials, (e.g. its dyeability)
    • D06B11/0089—Local modifications of the ability of the textile material to receive the treating materials, (e.g. its dyeability) the textile material being a surface
    • 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
    • D06B23/00—Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
    • D06B23/30—Means for cleaning apparatus or machines, or parts thereof

Definitions

  • the present invention concerns a foaming machine for pre-treatment of textile substrates, in particular for preparation for digital printing, finishing, functionalisation, in which the pre-treatment of the textile substrates, aimed for example at subsequent fixing of the digital printing inks or the application of functional substances or giving the textile substrates particular properties, is performed by application of a composition in the form of foam.
  • ink jet digital printing small drops of ink are transferred onto the textile substrate, in sequence or simultaneously and according to a predefined pattern, thus mixing with one another at the various points of the substrate to reproduce the desired colours and form the required design.
  • the textile substrates Before undergoing ink jet digital printing, the textile substrates must be pre-treated.
  • Digital printing inks unlike those used in other traditional printing techniques, are very fluid and are solubilised in large quantities of water, therefore posing significant problems of diffusion and migration into the textiles.
  • the textile substrates therefore have to be pre-treated with appropriate chemical reagents able to fix the inks.
  • Pre-treatment on continuous production lines is commonly carried out by: impregnation of the textiles in a bath containing the treatment agents in aqueous solution; roller squeezing (padding) to regulate the quantity of agents applied and eliminate any excess product applied; drying in oven/stenter/print dryer.
  • the foaming process allows a significant reduction in the quantity of water absorbed by the textiles, with consequent high energy saving in the subsequent drying.
  • the foaming process allows a significant reduction in the quantity of water absorbed by the textiles, with consequent high energy saving in the subsequent drying.
  • the moment there is no machine that performs this process in a completely satisfactory manner at the moment there is no machine that performs this process in a completely satisfactory manner.
  • US4587813A discloses an apparatus for applying a foamed treatment material such as size to a textile material passing between a pair of drive rollers; the apparatus includes a frame which forms a pocket for the size above the rollers with the rollers forming the bottom of the pocket; the size in foam form is applied to the textile material as the latter pass through the pocket.
  • One object of the present invention is to provide a machine for pre-treatment of textile substrates, in particular for preparation for digital printing, finishing, functionalisation, in which pre-treatment of the textile substrates is performed by the application of a composition in the form of foam, which is without the drawbacks of the known art highlighted here.
  • the present invention therefore concerns a machine as defined in essential terms in the attached claim 1 and, in its additional characteristics, in the dependent claims.
  • the machine in accordance with the invention allows effective application of the foam on the textile substrate.
  • the machine of the invention allows the foam, containing the treatment agents for the subsequent digital printing or other functional substances, to be deposited on one or both of the faces of the substrate.
  • the number 1 indicates overall a foaming machine 1 for pre-treatment, by application of a composition in the form of foam, of textile substrates intended for digital printing.
  • the machine 1 comprises a support structure 2, for example made of stainless steel, with vertical development and extending along a transversal axis A between a pair of lateral shoulders 3 which can house, for example, control members and electric components (known and not illustrated for simplicity).
  • a support structure 2 for example made of stainless steel, with vertical development and extending along a transversal axis A between a pair of lateral shoulders 3 which can house, for example, control members and electric components (known and not illustrated for simplicity).
  • the structure 2 has an upper inlet 4, from which a textile substrate T to be treated is fed to the machine 1, and a lower outlet 5, from which the treated substrate T is collected from the machine 1.
  • the machine 1 comprises: a set of guide rollers 7 to guide the textile substrate T through the machine 1 along a predefined path P; a foam applicator device 8 to supply a treatment composition in the form of foam onto the textile substrate T passing through the machine 1; a pair of dosing rollers 9 located downstream of the foam applicator device 8 along the path P to dose the composition applied on the textile substrate T.
  • the machine 1 comprises a first and a second guide roller 7, parallel to the axis A and located at respective opposite ends of the machine 1 defining the inlet 4 and the outlet 5; further guide rollers 7 can be variously located in the machine 1 to define the path P.
  • the foam applicator device 8 comprises at least a pair of carriages 11 provided with at least respective nozzles 12, connected by means of respective supply ducts 13 (optionally connected to one another) to a foam generating device 14 (schematically shown in figure 3 ) where the treatment composition to be applied is prepared (for example, with the procedures described in detail in the previously cited patent IT1418789 ) .
  • the carriages 11 are movable along respective guides 15 extending parallel to the axis A and formed on cross beams 16 which connect the shoulders 3.
  • the carriages 11 are for example motorised, or driven by appropriate actuators to move along the respective guides 15.
  • Each carriage 11 is provided with at least one nozzle 12, which delivers the treatment composition in the form of foam, facing a face of the substrate T.
  • the carriages 11 are therefore provided with respective opposite nozzles 12 facing respective faces of the substrate T.
  • the foam applicator device 8 can comprise several carriages 11 movable along each guide 15 and spaced from one another; it is also understood that each carriage 11 can have several nozzles 12 spaced from one another.
  • the dosing rollers 9 are located along the path P in an intermediate position between the inlet 4 and the outlet 5 and downstream of the foam applicator device 8 and are arranged side by side.
  • the dosing rollers 9 are arranged parallel to the axis A (and therefore in particular horizontal), extending along respective longitudinal axes parallel to each other and to the axis A.
  • the dosing rollers 9 are arranged side by side and vertically aligned (namely, they are at the same height from the ground); the dosing rollers 9 are arranged so as to contact respective opposite faces of the substrate T which passes through the dosing rollers 9 and exert a predefined pressure on the substrate T; the dosing rollers 9 are counter-rotating so as to press the substrate T from top to bottom.
  • the textile substrate T enters the machine 1 from the inlet 4 and is guided along the path P by the guide rollers 7 to the outlet 5; along the path P, the substrate T receives the treatment composition in the form of foam delivered from the foam applicator device 8 and then passes between the dosing rollers 9 which have the function of dosing the foam and causing it to penetrate inside the substrate T.
  • the substrate T passes between the dosing rollers 9 essentially along a median plane P of the machine 1 and the dosing rollers 9 are arranged adjacent on opposite sides of the plane P.
  • the treatment composition can be applied on only one or on both faces of the substrate T, using the respective nozzles 12.
  • the nozzles are oriented so as to supply the foam directly onto the substrate T, in particular onto one or both faces of the substrate T; the jet of foam coming out of the nozzles 12 therefore impacts the substrate T and the foam is then dragged by the substrate towards the dosing rollers 9.
  • the foam comes out of the nozzle 12 or the nozzles 12 and accumulates at the side of the substrate T above the dosing rollers 9 (one only or both, depending on whether the composition is applied on one or both faces of the substrate T), where a foam accumulation zone is created defining an immersion bath through which the substrate T passes; the pressure between the dosing rollers 9 then eliminates the excess treatment composition from the substrate T and doses the penetration thereof into the substrate T.
  • the foam is delivered from the nozzles 12 moving the carriages 11 along the guides 15 so as to reach all the deposit zones.
  • the machine 1 comprises a pair of lateral walls, substantially perpendicular to the axis A and located at respective lateral ends of the machine 1 above the dosing rollers 9 and in contact with them.
  • the position of the walls 17 (in particular the distance of the walls 17 from each other) can be adjusted to adapt to different dimensions of the substrate T to be treated.
  • the walls 17 are movable with respect to each other, driven by actuators, to translate parallel to the axis A one towards the other or vice versa.
  • control unit 20 provided with a suitable user interface, located for example on an articulated arm 21 that protrudes from the structure 2.
  • the machine 1 comprises a foam regulation system 22, configured so as to manage and vary the quantity of foam which is dragged by the dosing rollers 9 to contact the substrate T.
  • the quantity of foam that generates the immersion bath is regulated by sensors 23, for example laser sensors, located at the inlet 4 of the machine 1 above the dosing rollers 9 and connected to the control unit 20.
  • the control unit 20 is configured so as to maintain the foam level in the immersion bath constant as the quantity of treatment composition consumed varies.
  • control unit 20 regulates the quantity of foam delivered, and therefore the level of foam lying on the dosing rollers 9, so as to have a tangential foam distribution on the substrate T.
  • Density and volume of the foam in the zone of contact with the substrate T are controlled so as to avoid excessive immersion of the substrate T in the immersion bath and guarantee a tangential impregnation.
  • the quantity of foam delivered is such that the foam is brought into contact with the substrate T tangentially due to the dosing rollers 9.
  • the system 22 comprises doctor blades 25, 26 located above each dosing roller 9 to delimit the immersion bath.
  • each dosing roller 9 is associated with an internal doctor blade 25 and an external doctor blade 26, arranged side by side and extending parallel to the axis A; the doctor blades 25, 26 of each dosing roller 9 are spaced from each other and have respective end edges 27, 28 facing respective lateral surfaces 29 of the dosing rollers 9; the internal doctor blade 25 and the external doctor blade 26 are located respectively nearer to and farther from the median plane P (namely the substrate) of the machine.
  • the doctor blades 26, 26, together with the walls 17, constitute containment members delimiting the foam accumulation zone, namely the immersion bath, above the dosing rollers 9.
  • doctor blades 25, 26 are substantially parallel to the plane P.
  • each internal doctor blade 25 is movable (in the example illustrated vertically, namely parallel to the plane P) so as to be moved close to and spaced from the surface 29 of the respective dosing roller 9 and thus vary the distance of its end edge 27 from the surface 29 of the dosing roller 9.
  • doctor blades 25 translate parallel to the plane P driven by appropriate actuators.
  • each doctor blade 25 The distance between the end edge 27 of each doctor blade 25 and the surface 29 of the respective dosing roller 9 defines a passage opening 30 for the foam through which the foam accumulated in the immersion bath comes into contact with the substrate T.
  • the external doctor blades 26 are for example fixed and in contact with the surfaces 29 of the respective dosing rollers 9 by means of the respective end edges 28.
  • the external doctor blades 26 thus also have the function of cleaning the dosing rollers 9.
  • the movement of the internal doctor blades 25 to adjust the passage opening 30 and therefore the quantity of foam applied to the substrate T is controlled, for example, by the control unit 20 based on data detected and transmitted by a control sensor 31 located downstream of the dosing rollers 9; for example, the sensor 31 is a weight sensor that measures the weight of the substrate T at the outlet 5 of the machine 1; the control unit 20 then calculates the quantity of treatment composition applied as weight difference of the substrate T between inlet 4 and outlet 5 of the machine 1 and adjusts the position of the doctor blades 25 accordingly.
  • the machine 1 is advantageously inserted in a digital printing line (known per se and not illustrated); the synchronism of the machine 1 with the rest of the line can be guaranteed, for example, by a synchronism dancer roller, with the possibility of adjusting the textile tension by means of pneumatic actuator.
  • the machine 1 is provided with conveying and collecting elements 33 ( figures 1 and 3 ) located below the dosing rollers 9 and configured so as to intercept any losses and dripping of excess foam from the dosing rollers 9, preventing them from falling onto the treated substrate T.
  • the dosing rollers 9 can be provided with an internal heating/cooling system, to heat/cool the surfaces 29 of the dosing rollers 9 and, therefore, the treatment composition applied to the substrate T.
  • the machine 1 is designed to apply the foam on one side only of the substrate T or on both sides of the substrate T.
  • the machine 1 is advantageously provided with a support system 35 which allows effective application of the treatment composition on one face only of the substrate.
  • the support system 35 includes, for example, a central contact member 36, with the function of supporting the substrate T.
  • the contact member 36 comprises in particular a bar extending parallel to the axis A and movable to be brought into contact with a face of the substrate T above a dosing roller 9 when the treatment composition is to be applied to the opposite face of the substrate T.
  • the support system 35 includes auxiliary drawing cylinders 37 which divert the substrate T from the path P so as to keep it adequately supported on the side opposite the face on which the foam is applied.
  • the machine 1 can be optionally provided with a group of squeezing cylinders 38, preferably integrated in the structure 2, to render uniform and cause the foam to penetrate further after the first collapse of the foaming agents in the dosing rollers 9.
  • the machine 1 can optionally be provided with an automatic cleaning system 40, comprising a plurality of cleaning nozzles 41 distributed in the structure 2 and connected to a supply circuit (not illustrated) to spray a washing liquid (for example water) inside the machine 1, more precisely on the surfaces 29 of the dosing rollers 9, on the doctor blades 25, 26 and optionally on the squeezing cylinders 38 if present.
  • a washing liquid for example water
  • the washing liquid is then advantageously collected in a drain tank 42 located in the lower part of the machine 1 and provided with a discharge hole 43.
  • Removable walls 44 are advantageously positioned around the machine 1 during the cleaning operations to contain the jets of washing liquid.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)

Claims (12)

  1. Machine (1) pour le prétraitement de substrats textiles, en particulier pour la préparation pour impression numérique, finition, fonctionnalisation, par application d'une composition sous la forme d'une mousse, comprenant une structure de support (2) s'étendant le long d'un axe transversal (A) ; une série de rouleaux de guidage (7) pour guider le substrat (T) à travers la machine (1) le long d'une voie (P) prédéfinie ; un dispositif d'application de mousse (8) pour apporter une composition de traitement sous la forme de mousse sur le substrat (T) traversant la machine (1) ; une paire de rouleaux de dosage (9) parallèles à l'axe (A) et situés en aval du dispositif d'application de mousse (8) le long du chemin (P) pour doser la composition appliquée au substrat (T) ; dans laquelle le dispositif d'application de mousse (8) comprend au moins une paire de chariots (11) mobiles le long de guides (15) respectifs, s'étendant parallèlement à l'axe (A), et équipés d'au moins de buses (12) opposées respectives, reliées par des conduits d'alimentation (13) respectifs à un dispositif de production de mousse (14) ; et dans laquelle des éléments de confinement (17, 25, 26) sont placés au-dessus de chaque rouleau de dosage (9) pour délimiter une zone d'accumulation de mousse définissant un bain d'immersion à travers lequel passe le substrat (T) ; caractérisée en ce que lesdites buses (12) opposées sont tournées vers des faces opposées respectives du substrat (T) et sont orientées de manière à apporter la mousse directement sur une ou les deux faces du substrat (T).
  2. Machine selon la revendication 1, dans laquelle les éléments de confinement comprennent une paire de parois latérales (17), sensiblement perpendiculaires à l'axe (A) et positionnées au niveau d'extrémités latérales respectives de la machine (1) sur et en contact avec les rouleaux de dosage (9) ; et des racles (25, 26) sensiblement parallèles à l'axe (A) et positionnées au-dessus de chaque rouleau de dosage (9).
  3. Machine selon la revendication 2, comprenant au moins une première paire de racles internes (25), parallèles à l'axe (A) et placées au-dessus des rouleaux de dosage (9) respectifs pour délimiter le bain d'immersion ; chaque racle interne (25) étant mobile par rapport au rouleau de dosage (9) respectif de manière à être rapprochée et éloignée d'une surface latérale (29) du rouleau de dosage (9) et ainsi à faire varier une ouverture de passage (30) pour la mousse à travers laquelle la mousse accumulée dans le bain d'immersion entre en contact avec le substrat (T).
  4. Machine selon la revendication 3, dans laquelle la position des racles internes (25) est commandée par une unité de commande (20) sur la base de données collectées et transmises par un capteur de commande (31), par exemple un capteur de poids, situé en aval des rouleaux de dosage (9).
  5. Machine selon la revendication 3 ou 4, dans laquelle chaque rouleau de dosage (9) est associé à une dite racle interne (25) et une racle externe (26), agencées côte à côte et s'étendant parallèlement à l'axe (A) et espacées l'une de l'autre.
  6. Machine selon l'une des revendications 2 à 5, dans laquelle les parois (17) sont mobiles l'une par rapport à l'autre, entraînées par des actionneurs, pour translater parallèlement à l'axe (A) l'une vers l'autre ou vice versa.
  7. Machine selon l'une des revendications précédentes, comprenant un système de régulation de mousse (22), configuré pour commander et ajuster la quantité de mousse qui est traînée par les rouleaux de dosage (9) pour entrer en contact avec le substrat (T).
  8. Machine selon l'une des revendications précédentes, dans laquelle la quantité de mousse qui définit le bain d'immersion est régulée par des capteurs (23), par exemple des capteurs laser, situés au niveau d'une entrée (4) de la machine (1) au-dessus des rouleaux de dosage (9) et reliés à une unité de commande (20).
  9. Machine selon l'une des revendications précédentes, dans laquelle le dispositif d'application de mousse (8) comprend une pluralité de chariots (11) mobiles le long de chaque guide (15) et espacés les uns des autres ; et/ou chaque chariot (11) est pourvu d'une ou plusieurs buses (12) espacées les unes des autres sur le chariot (11).
  10. Machine selon l'une des revendications précédentes, comprenant un système de support (35) permettant une application efficace de la composition de traitement sur une face du substrat (T) uniquement ; le système de support (35) comprenant un élément de contact central (36), mobile pour être amené en contact avec une face du substrat (T) au-dessus d'un des rouleaux de dosage (9) lorsque la composition de traitement doit être appliquée sur la face opposée du substrat (T) ; et/ou des cylindres de traction auxiliaires (37) agencés de manière à détourner le substrat (T) du chemin (P) et à le maintenir supporté de manière appropriée sur le côté opposé à la face sur laquelle est appliquée la mousse.
  11. Machine selon l'une des revendications précédentes, comprenant un groupe de cylindres presseurs (38) situés en aval des rouleaux de dosage (9).
  12. Machine selon l'une des revendications précédentes, comprenant en outre un système de nettoyage automatique (40), comprenant une pluralité de buses de nettoyage (41) réparties dans la structure (2) et reliées à un circuit d'alimentation pour pulvériser un liquide de lavage dans la machine (1) ; et un réservoir de vidange (42) situé dans une partie de fond de la machine (1) pour collecter le liquide de lavage usagé.
EP20215819.2A 2019-12-19 2020-12-18 Machine d'application d'une mousse pour le prétraitement de substrats textiles Active EP3839121B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102019000024835A IT201900024835A1 (it) 2019-12-19 2019-12-19 Macchina di schiumatura per il pre-trattamento di substrati tessili

Publications (4)

Publication Number Publication Date
EP3839121A2 EP3839121A2 (fr) 2021-06-23
EP3839121A3 EP3839121A3 (fr) 2021-09-15
EP3839121C0 EP3839121C0 (fr) 2023-11-15
EP3839121B1 true EP3839121B1 (fr) 2023-11-15

Family

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EP20215819.2A Active EP3839121B1 (fr) 2019-12-19 2020-12-18 Machine d'application d'une mousse pour le prétraitement de substrats textiles

Country Status (2)

Country Link
EP (1) EP3839121B1 (fr)
IT (1) IT201900024835A1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4193762A (en) * 1978-05-01 1980-03-18 United Merchants And Manufacturers, Inc. Textile treatment process
US4587813A (en) * 1984-09-12 1986-05-13 Reed-Chatwood, Inc. Apparatus for applying treatment material to a textile material
JP4615640B2 (ja) * 1998-02-14 2011-01-19 ハイデルベルガー ドルツクマシーネン アクチエンゲゼルシヤフト 印刷機のインキ壷におけるインキを調量する方法

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Publication number Publication date
EP3839121A2 (fr) 2021-06-23
EP3839121C0 (fr) 2023-11-15
IT201900024835A1 (it) 2021-06-19
EP3839121A3 (fr) 2021-09-15

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