EP0549392B1 - Fusible interlining for stiffening and the method for its manufacture - Google Patents

Fusible interlining for stiffening and the method for its manufacture Download PDF

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Publication number
EP0549392B1
EP0549392B1 EP92403289A EP92403289A EP0549392B1 EP 0549392 B1 EP0549392 B1 EP 0549392B1 EP 92403289 A EP92403289 A EP 92403289A EP 92403289 A EP92403289 A EP 92403289A EP 0549392 B1 EP0549392 B1 EP 0549392B1
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EP
European Patent Office
Prior art keywords
layer
polymers
fusible
thermoexpansible
semifinished
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Expired - Lifetime
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EP92403289A
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German (de)
French (fr)
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EP0549392A1 (en
Inventor
Bernard Demoulin
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Lainiere de Picardie SA
Lainiere de Picardie BC SAS
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Lainiere de Picardie SA
Lainiere de Picardie BC SAS
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    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D27/00—Details of garments or of their making
    • A41D27/02—Linings
    • A41D27/06—Stiffening-pieces
    • 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
    • D06M17/00—Producing multi-layer textile fabrics
    • D06M17/04—Producing multi-layer textile fabrics by applying synthetic resins as adhesives
    • 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
    • D06M17/00—Producing multi-layer textile fabrics
    • D06M17/04—Producing multi-layer textile fabrics by applying synthetic resins as adhesives
    • D06M17/06—Polymers of vinyl compounds
    • 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
    • D06M17/00—Producing multi-layer textile fabrics
    • D06M17/04—Producing multi-layer textile fabrics by applying synthetic resins as adhesives
    • D06M17/10—Polyurethanes polyurea

Definitions

  • the invention relates to a fusible interlining and its manufacturing process, respectively, according to the preamble of independent claims 1 and 16
  • fusible interlining comprising a textile support on which is deposited, by coating, a layer of thermo-adhesive polymers distributed in points, as described, for example, in document FR-A-2 241 604.
  • linings are specifically intended to be laminated on another textile, for example a drapery, so as to constitute a complex whose physical properties, behavior, nervousness, flexibility, touch, volume, hand, ... can be controlled.
  • thermo-adhesive layer These properties of the complex result from the nature of the drapery, the nature of the textile support for the interlining and also from the nature, composition and method of application of the thermo-adhesive layer.
  • the fusible interfacing After being manufactured, the fusible interfacing must be able to withstand storage at room temperature. It is therefore necessary that the different layers of this product, generally stored in rolls, do not adhere to each other.
  • the fusible interfacing must not have a tacky effect and adhesive properties at room temperature (“tack").
  • the fusible interlining is subsequently laminated to the draperies so as to obtain the desired complex.
  • this lamination is carried out using a press operating at temperatures between 100 ° C and 180 ° C under pressures of a few decibars to a few bars for relatively short times, of the order of 10 at 30 seconds.
  • thermo-adhesive polymers of the interlining must at least partially regain their adhesion property.
  • thermo-adhesive polymers do not pierce the drapery or produce returns, that is to say pierce the textile support of the interlining.
  • Document FR-A-2 023 354 describes a heat-sealable interlining consisting of a textile structure coated on at least one of its faces with a polymer or a mixture of polymers which is essentially non-crosslinked at the time of application. At least a fraction of this coating is transformed by heating into insoluble plastic material and has, at least at the time of heat sealing, a porous or foam structure.
  • FR-A-2 177 038 it has been proposed to produce a stabilizer by successively depositing two layers of adhesive on a support.
  • the first layer is produced by coating, by screen printing, a viscous dispersion containing polymers with high viscosity and / or high melting point.
  • the second layer is produced by dusting a powder of heat-bonding polymers with viscosity and / or melting point lower than those of the first layer.
  • Document FR-A-2 318 914 describes simultaneous coatings by screen printing frame of two layers of polymers in the form of dry powder using a hollow engraved cylinder.
  • the sub-layer is here also composed of polymers with higher viscosity and / or higher melting point than those of the second layer.
  • the coatings produced by the dry process using a hollow engraved cylinder are affected by a lack of mechanical cohesion of the two layers of polymers with respect to each other.
  • the interface of the two layers constitutes a zone of weakness and the clothes made with interlining of this type do not support maintenance treatments.
  • Document FR-A-2 576 191 describes successive coatings of two layers of polymers, of different viscosity and / or melting point, these two layers are deposited on either side of the textile support.
  • a first object of the present invention is therefore to propose a fusible interfacing which on the one hand overcomes the drawbacks mentioned above and, on the other hand, does not pierce the drapery and does not produce returns, that is to say does not pierce the textile support of the interlining.
  • the aim of the present invention is to propose the use of one or more thermo-expandable product (s) entering the fusible interlining structure, ensuring an excellent screen effect and an effect of relief, that is to say a useful volume of the important point.
  • a second object of the present invention is to propose a method for manufacturing such a covering.
  • the invention firstly provides a semi-finished fusible interlining comprising a textile support and fusing means, intended to be laminated to a textile article.
  • the textile support there is associated with the textile support a layer of heat-expandable polymers, the expansion temperature of said polymers being lower than the temperature of use of the fusible means, the layer of heat-expandable polymers having the function of constitute a screen vis-à-vis the fusible means and to increase the relief of the fusible means, this having the effect of avoiding back and crossing phenomena and increasing the bonding force.
  • the layer of heat-expandable polymers is applied, with a distribution in points, essentially on the surface of one of the faces of the textile support.
  • thermo-adhesive coating distributed in points is applied on the same side and on the points of thermally expandable polymers.
  • the layer of thermo-adhesive coating distributed in points is applied essentially to the face of the textile support opposite the layer of thermo-expandable polymers.
  • the layer of thermally expandable polymers is essentially nested in the thickness of the textile support.
  • the thermo-adhesive coating layer distributed in points is then applied essentially on one of the faces of the textile support opposite the points of the layer of heat-expandable polymers.
  • the heat-expandable polymers of the heat-expandable layer are chosen from the group including polymers with reactive chemical functions allowing crosslinking on themselves. Preferably, they have a viscosity of between approximately 100 and 500 dPa.s, an active material content of between approximately 40% and 80%, especially between 50% and 80%, and an expansion coefficient of between approximately 100 % and 275%, more particularly between 157% and 275%.
  • the heat-expandable polymers are chosen from the group including synthetic resins in aqueous dispersion of the acrylic, butadiene, polyurethane type.
  • thermo-adhesive coating layer for its part, comprises one or more polymers chosen from the group including polyamides, copolyamides, polyesters, copolyesters, polyurethanes, polyethylenes, PVC, alone or as a mixture between them.
  • thermo-adhesive coating layer comprises one or more polymers chosen from the group including styrene-ethyl acrylate copolymers, melamines, aziridine, isocyanates, unsaturated polyesters, epoxy resins.
  • the layer of heat-expandable polymers essentially comprises heat-expandable polymers or a mixture of heat-expandable and heat-adhesive polymers, in particular acrylates.
  • the invention also provides a finished fusible interlining, in which the heat-expandable polymers are in the expanded state while the thermo-adhesive coating layer is in the non-molten state.
  • the layer of thermally expandable polymers is then substantially continuous.
  • the invention finally proposes a process for manufacturing finished fusible linings in which a textile support receives a thermo-adhesive coating.
  • the layer of heat-expandable polymers is deposited on one of the faces of the textile support by a first rotary frame and the layer of thermo-adhesive coating by a second rotary frame.
  • the layer of heat-expandable polymers is subjected to an expansion temperature lower than the temperature at which the fusible means are used before depositing the layer of thermo-adhesive coating.
  • the layer of thermally expandable polymers and the layer of thermo-adhesive coating are deposited substantially simultaneously.
  • the heat-expandable polymers are deposited from the heat-expandable layer in the form of foam.
  • this layer undergoes a chemical crosslinking reaction with gas evolution (for example: nitrogen, ammonia, carbon dioxide, etc.) which remains trapped in the mass of polymers in the form of bubbles.
  • gas evolution for example: nitrogen, ammonia, carbon dioxide, etc.
  • thermo-expandable polymers can be used with active material levels much greater than 50%, and thereby ensure a good screen effect with little material.
  • thermo-adhesive coating layer As described above, the chemical reaction creates a three-dimensional expansion allowing the upper thermo-adhesive coating layer to be 100% usable for laminating.
  • This layer is perfectly adjustable by combining the intrinsic property of the product giving a given volume of expansion for a given temperature at its degree of dilution.
  • the layer of heat-expandable polymers does not hamper the quality of the "hand" of the final product due to its loss of expansion volume following the passage to the heat-sealing press of the interlining / textile article complex.
  • the semi-finished fusible interlining 1 comprises a textile support 3 and fusing means. It is intended to be laminated on a textile article 2, for example a drapery.
  • a layer 5 of heat-expandable polymers It is associated with the textile support 3 a layer 5 of heat-expandable polymers, the expansion temperature of said heat-expandable polymers being lower than the temperature of implementation of the fusible means, the layer 5 of heat-expandable polymers having the function to form a screen vis-à-vis the fusible means and to increase the relief of the fusible means, this having the effect of avoiding the phenomena of return and crossing and of increasing the bonding force.
  • fusible interlining is understood here to mean the fusible interlining in the state it is in before the layer 5 of heat-expandable polymers has been subjected to the expansion temperature of said polymers.
  • the layer 5 of thermally expandable polymers is therefore associated with the textile support 3, which means that it can be in contact with or incorporated into the textile support 3.
  • This layer 5 of thermally expandable polymers is applied, with a distribution in points 7, essentially on the surface of one of the faces of the textile support 3.
  • the semi-finished fusible interlining 1 according to the invention also comprises a layer 4 of thermo-adhesive coating distributed in points 6.
  • this layer 4 of thermo-adhesive coating distributed in points 6 is applied on the same side and on points 7 of heat-expandable polymers; the distribution of points 6, 7 respectively of layers 4 and 5 being substantially identical.
  • the layer 4 of heat-adhesive coating distributed in points 6 is applied essentially to the face of the textile support 3 opposite to the layer 5 of heat-expandable polymers, these points 6 of layer 4 being distributed next to points 7 of layer 5.
  • the layer 5 of heat-expandable polymers is essentially nested in the thickness of the textile support 3. It is understood by this that the heat-expandable polymers are housed in the gaps left free between the son of the support textile 3.
  • thermo-expandable polymer (s) With a low coefficient of expansion and / or with a suitable dilution rate.
  • thermo-adhesive coating is then applied essentially to one of the faces of the textile support 3 opposite points 7 of the layer 5 of heat-expandable polymers.
  • thermo-expandable polymer (s) of layer 5 are chosen from the group including polymers with reactive chemical functions allowing crosslinking on themselves.
  • thermo-expandable polymer (s) is (are) chosen from the group including polymers having a viscosity of between approximately 100 and 500 dPa.s.
  • the heat-expandable polymers are thus in the form of a more or less viscous paste and have rheological properties which allow them to be handled without practically any dissolution or significant addition of water while having a relatively high cohesion coefficient. .
  • the heat-expandable polymers can be used with active material levels much higher than 50%, and thus ensure a good screen effect with little material. This property of thermally expandable polymers, combined with their relatively high cohesion, allows them to be used in a smaller quantity and thus not to impede the deposition of layer 4 of thermo-adhesive coating.
  • the heat-expandable polymers of layer 5 are chosen from the group including polymers having an active material content of between about 40% and 80%, in particular between 50% and 80%.
  • the height of the layer 5 of heat-expandable polymers that is to say the useful volume of the points (or even relief of the points) is completely adjustable by combining the intrinsic property of the heat-expandable polymers giving a given volume or coefficient of expansion for a given temperature at its degree of dilution.
  • thermally expandable polymers, according to the invention, of layer 5 are chosen from the group including polymers having an expansion coefficient of between approximately 100% and 275%, more particularly between 157% and 275%.
  • the heat-expandable polymers used are chosen from the group including synthetic resins in aqueous dispersion of the acrylic, butadiene, polyurethane type.
  • the layer 4 of thermo-adhesive coating comprises one or more polymers chosen from the group including polyamides, copolyamides, polyesters, copolyesters, polyurethanes, polyethylenes.
  • layer 4 comprises one or more polymers chosen from the group including styrene-ethyl acrylate copolymers, melamines, aziridine, isocyanates, unsaturated polyesters, epoxy resins.
  • the layer 5 essentially comprises heat-expandable polymers.
  • thermally expandable polymers are intrinsically non-fusible, after coating at a controlled temperature to avoid crosslinking, the passage on a fusible press allows crosslinking by trapping the threads of the textile support 3 and of the textile article 2. This gives a mechanical type of attachment.
  • Layer 5 can also comprise a mixture of heat-expandable and heat-bonding polymers, in particular acrylates.
  • the invention also relates to a finished fusible interlining (FIGS. 4A, 4B and 4C) which is such that it consists of a semi-finished interlining of the type described above in which the heat-expandable polymers of layer 5 are the expanded state while the layer 4 of thermo-adhesive coating is in the non-molten state.
  • a finished fusible interlining is therefore intended to be stored, generally in the form of a roll, to then be subsequently laminated to a textile article 2.
  • FIGS. 4B and 4C represent two schematic views of a finished fusible interlining which, as it consists of a semi-finished interlining of the type described above, is represented by FIG. 3.
  • the difference between FIGS. 4B and 4C is the Mesh number of the coating of layer 5 of thermally expandable polymers.
  • expanded state is meant either a foam or porous type, that is to say comprising gas bubbles following the crosslinking reaction with gas evolution, or a state in which the expanded polymer has lost all its volume. during calendering which releases the gas bubbles trapped in the crosslinked mass.
  • Layer 5 of thermally expandable polymers is thus substantially continuous.
  • the invention finally relates to a method of manufacture of finished fusible linings in which a textile support 3 receives a thermo-adhesive coating.
  • a layer 5 of heat-expandable polymers is first deposited distributed in points 7 on one of the faces of the textile support 3, so that the points 7 of the layer 5 are on the surface of the textile support 3 or nested in the thickness of the latter.
  • thermo-adhesive coating is deposited on layer 5 of thermally expandable polymers or on the face of the textile support 3 opposite to layer 5.
  • the assembly 3, 4, 5 is subjected to an expansion temperature lower than the processing temperature of the fusible means.
  • the layer 5 of heat-expandable polymers is deposited on one of the faces of the textile support 3 by a first rotary frame and the layer 4 of heat-adhesive coating on the layer 5 or on the face of the textile support 3 opposite layer 5 by a second rotating frame.
  • thermo-adhesive coating In the case where the layer 4 of thermo-adhesive coating is deposited on the layer 5, it is then possible optionally to subject the layer 5 to an expansion temperature lower than the temperature of implementation of the fusible means before depositing layer 4 of thermo-adhesive coating.
  • thermo-adhesive coating will therefore not pose any problem because it will be done on a crosslinked surface perfectly adapted to receive the deposit of a dispersion of fusible polymers.
  • heat-adhesive coating layer 4 is deposited on the face of the textile support 3 opposite to the layer 5, it is possible to envisage a possible implementation in one or two stages.
  • the layer 5 of heat-expandable polymers and the layer 4 of heat-adhesive coating are deposited substantially simultaneously.
  • thermo-adhesive coating opposite each point 7 of the layer and on the side opposite to the textile substrate 3 as well as the drying of the latter can then be carried out without worrying about deterioration of the layer 5.
  • the layer 5 of heat-expandable polymers is deposited on one of the faces of the textile support 3 by a rotary frame.
  • Layer 4 of thermo-adhesive coating is deposited by dusting on layer 5.
  • Heat-expandable polymers have the property of being tacky at room temperature when they have not yet undergone the thermal stress triggering the crosslinking reaction. These polymers can therefore be conventionally coated with a rotary frame after they have been dispersed at the rate of active material predetermined as a function of the desired relief effect.
  • the expansion temperature for the implementation of such a process is between approximately 110 ° C and 160 ° C, more particularly between 130 ° C and 160 ° C.
  • the heat-expandable polymers of the layer 5 are deposited in the form of a paste, but the deposition of these polymers in the form of foam is also possible.

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  • Textile Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Details Of Garments (AREA)
  • Manufacturing Of Multi-Layer Textile Fabrics (AREA)
  • Seal Device For Vehicle (AREA)
  • Materials For Medical Uses (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Electroluminescent Light Sources (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • External Artificial Organs (AREA)
  • Medicinal Preparation (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Table Devices Or Equipment (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

Semifinished fusible interlining (1) comprising a textile support (3) and fusible means, intended to be bonded to a textile article (2), in which interlining a layer (5) of heat-expandable polymers is used in combination with the textile support (3), the temperature of expansion of the said polymers being lower than the temperature of application of the fusible means, the purpose of the layer (5) of heat-expandable polymers being to form a screen against the fusible means and to increase the relief of the fusible means, this having the effect of avoiding the phenomena of backflow and breakthrough and of increasing the bond strength. <IMAGE>

Description

L'invention concerne un entoilage thermocollant et son procédé de fabrication, respectivement, selon le préambule des revendications indépendantes 1 et 16The invention relates to a fusible interlining and its manufacturing process, respectively, according to the preamble of independent claims 1 and 16

Il est connu de réaliser des entoilages thermocollants comprenant un support textile sur lequel est déposée, par enduction, une couche de polymères thermo-adhésifs répartie en points, comme décrit, par exemple, dans le document FR-A-2 241 604.It is known to produce fusible interlining comprising a textile support on which is deposited, by coating, a layer of thermo-adhesive polymers distributed in points, as described, for example, in document FR-A-2 241 604.

Ces entoilages sont spécifiquement destinés à être contrecollés sur un autre textile, par exemple une draperie, de manière à constituer un complexe dont les propriétés physiques, tenue, nervosité, souplesse, toucher, volume, main, ... peuvent être maîtrisées.These linings are specifically intended to be laminated on another textile, for example a drapery, so as to constitute a complex whose physical properties, behavior, nervousness, flexibility, touch, volume, hand, ... can be controlled.

Ces propriétés du complexe résultent de la nature de la draperie, de la nature du support textile de l'entoilage et aussi de la nature, de la composition et du mode d'application de la couche thermo-adhésive.These properties of the complex result from the nature of the drapery, the nature of the textile support for the interlining and also from the nature, composition and method of application of the thermo-adhesive layer.

Après avoir été fabriqué, l'entoilage thermocollant doit pouvoir supporter un stockage à température ambiante. Il est alors nécessaire que les différentes couches de ce produit, généralement stocké en rouleau, n'adhèrent pas les unes avec les autres. L'entoilage thermocollant ne doit pas présenter un effet poisseux et des propriétés adhésives à température ambiante("tack").After being manufactured, the fusible interfacing must be able to withstand storage at room temperature. It is therefore necessary that the different layers of this product, generally stored in rolls, do not adhere to each other. The fusible interfacing must not have a tacky effect and adhesive properties at room temperature ("tack").

L'entoilage thermocollant est ultérieurement contrecollé sur les draperies de manière à obtenir le complexe recherché.The fusible interlining is subsequently laminated to the draperies so as to obtain the desired complex.

Le plus souvent, ce contrecollage est réalisé à l'aide d'une presse fonctionnant à des températures comprises entre 100°C et 180°C sous des pressions de quelques décibars à quelques bars pendant des temps relativement courts, de l'ordre de 10 à 30 secondes.Most often, this lamination is carried out using a press operating at temperatures between 100 ° C and 180 ° C under pressures of a few decibars to a few bars for relatively short times, of the order of 10 at 30 seconds.

Au cours de cette phase, les polymères thermo-adhésifs de l'entoilage doivent au moins partiellement retrouver leur propriété d'adhésion.During this phase, the thermo-adhesive polymers of the interlining must at least partially regain their adhesion property.

Egalement au cours de cette opération, il faut éviter que ces polymères thermo-adhésifs ne transpercent la draperie ou ne produisent des retours, c'est-à-dire transpercent le support textile de l'entoilage.Also during this operation, it is necessary to avoid that these thermo-adhesive polymers do not pierce the drapery or produce returns, that is to say pierce the textile support of the interlining.

En effet, de tels transpercements ou retours produiraient un effet inesthétique, rendant l'entoilage impropre à l'utilisation ou, pour le moins, donneraient au complexe des propriétés néfastes contraires à celles recherchées.Indeed, such piercings or returns would produce an unsightly effect, making the stabilizer unfit for use or, at the very least, would give the complex harmful properties contrary to those sought.

Dès l'origine de l'utilisation d'entoilages thermocollants, les phénomènes de traversées et retours ont été constatés et de nombreuses tentatives ont été faites depuis pour éviter ces défauts.From the origin of the use of fusible interlining, the phenomena of crossings and returns have been noted and many attempts have been made since to avoid these defects.

En particulier, on a cherché à déposer sur un support textile plusieurs couches successives de polymères ayant des propriétés différentes.In particular, attempts have been made to deposit on a textile support several successive layers of polymers having different properties.

Le document US-A-2 631 947 décrit un tissu thermocollant destiné au raccommodage qui comporte un support textile et deux couches d'adhésif, continues, de viscosités différentes. La couche au contact du support a une température de fusion supérieure à celle de la couche de surface. Ainsi, l'adhésion du tissu sur l'étoffe à réparer est facilitée, sa tenue lors des lavages successifs est améliorée et les traversées sont évitées.Document US-A-2,631,947 describes a fusible fabric intended for mending which comprises a textile support and two layers of adhesive, continuous, of different viscosities. The layer in contact with the support has a melting temperature higher than that of the surface layer. Thus, the adhesion of the fabric to the fabric to be repaired is facilitated, its hold during successive washings is improved and crossings are avoided.

Le document FR-A-2 023 354 décrit une triplure thermosoudable constituée d'une structure textile revêtue sur au moins une de ses faces d'un polymère ou d'un mélange de polymères essentiellement non réticulé au moment de l'application. Au moins une fraction de cette enduction est transformée par chauffage en matière plastique insoluble et présente, au moins au moment du thermosoudage une structure poreuse ou de mousse.Document FR-A-2 023 354 describes a heat-sealable interlining consisting of a textile structure coated on at least one of its faces with a polymer or a mixture of polymers which is essentially non-crosslinked at the time of application. At least a fraction of this coating is transformed by heating into insoluble plastic material and has, at least at the time of heat sealing, a porous or foam structure.

Plus récemment, selon le document FR-A-2 177 038, il a été proposé de réaliser un entoilage en déposant successivement deux couches d'adhésif sur un support. La première couche est réalisée par enduction par sérigraphie d'une dispersion visqueuse contenant des polymères à haute viscosité et/ou à haut point de fusion.More recently, according to document FR-A-2 177 038, it has been proposed to produce a stabilizer by successively depositing two layers of adhesive on a support. The first layer is produced by coating, by screen printing, a viscous dispersion containing polymers with high viscosity and / or high melting point.

La deuxième couche est réalisée par saupoudrage d'une poudre de polymères thermocollants de viscosité et/ou de point de fusion inférieurs à ceux de la première couche.The second layer is produced by dusting a powder of heat-bonding polymers with viscosity and / or melting point lower than those of the first layer.

La réalisation d'une deuxième couche par saupoudrage sur une première couche visqueuse ne permet pas d'obtenir un bonne régularité de la deuxième couche. De plus, les points formés par cette deuxième couche débordent le plus souvent des points formés par la première couche, ce qui entraîne des traversées lors du contrecollage.The production of a second layer by dusting on a first viscous layer does not make it possible to obtain good regularity of the second layer. In addition, the points formed by this second layer more often than beyond the points formed by the first layer, which leads to crossings during laminating.

Le document FR-A-2 318 914 décrit des enductions simultanées par cadre sérigraphique de deux couches de polymères sous forme de poudre sèche à l'aide d'un cylindre gravé en creux. La sous-couche est ici aussi composée de polymères à plus haute viscosité et/ou à plus haut point de fusion que ceux de la deuxième couche.Document FR-A-2 318 914 describes simultaneous coatings by screen printing frame of two layers of polymers in the form of dry powder using a hollow engraved cylinder. The sub-layer is here also composed of polymers with higher viscosity and / or higher melting point than those of the second layer.

Les enductions réalisées par voie sèche par cylindre gravé en creux sont affectées par un manque de cohésion mécanique des deux couches de polymères l'une par rapport à l'autre. L'interface des deux couches constitue une zone de faiblesse et les vêtements réalisés avec des entoilages de ce type supportent mal les traitements d'entretien.The coatings produced by the dry process using a hollow engraved cylinder are affected by a lack of mechanical cohesion of the two layers of polymers with respect to each other. The interface of the two layers constitutes a zone of weakness and the clothes made with interlining of this type do not support maintenance treatments.

Selon le document DE-A-2 461 845, il a été proposé une enduction simultanée par cadre sérigraphique de deux couches de dispersion visqueuse contenant des polymères de viscosité et/ou de point de fusion différents. Les deux pâtes sont délivrées dans le même cadre par deux racles séparées juxtaposées.According to document DE-A-2 461 845, a simultaneous coating by screen printing has been proposed of two layers of viscous dispersion containing polymers of different viscosity and / or melting point. The two pastes are delivered in the same frame by two separate doctor blades juxtaposed.

Cette technique est extrêmement délicate à mettre en oeuvre. L'expérience a montré qu'il est très difficile de garnir les trous des cylindres de gravure sans que toute ou partie de la dispersion ne se dépose sur le support textile. L'enduction crée alors sur le support textile des traînées d'un mélange des deux dispersions qui ne permet pas d'obtenir un entoilage de qualité.This technique is extremely delicate to implement. Experience has shown that it is very difficult to fill the holes of the engraving cylinders without all or part of the dispersion being deposited on the textile support. The coating then creates streaks on the textile support of a mixture of the two dispersions which does not make it possible to obtain a quality interlining.

Le document FR-A-2 576 191 décrit des enductions successives de deux couches de polymères, de viscosité et/ou de point de fusion différents, ces deux couches sont déposées de part et d'autre du support textile.Document FR-A-2 576 191 describes successive coatings of two layers of polymers, of different viscosity and / or melting point, these two layers are deposited on either side of the textile support.

Il ressort de l'état de la technique que la mise en oeuvre des entoilages thermocollants est confrontée aux problèmes suivants :

  • interpénétration des deux couches (sous-couche et couche supérieures), lors de l'enduction, par mélange de la base du point de la couche supérieure avec le sommet du point de la sous-couche ; on entend ici par sous-couche ou première couche, la couche appliquée directement sur le support textile de l'entoilage ; on entend par couche supérieure ou deuxième couche, la couche appliquée sur la sous-couche ou première couche ;
  • enduction très difficile à réaliser avec un résultat optimal du fait du manque de cohésion de la sous-couche qui ne permet pas d'aspirer les points de la deuxième couche (couche supérieure) hors du cadre ;
  • faible poids de matière thermocollante dû à la difficulté d'enduction sur la première couche (ou sous-couche) ;
  • taux de matière active de la sous-couche relativement faible (inférieur généralement à 50%) ;
  • durcissement du textile lorsque la sous-couche est trop importante en poids.
It appears from the state of the art that the implementation The work of fusible interlining faces the following problems:
  • interpenetration of the two layers (sub-layer and upper layer), during coating, by mixing the base of the point of the upper layer with the top of the point of the sub-layer; the term “sublayer” or “first layer” is understood here to mean the layer applied directly to the textile support of the interlining; the term “upper layer or second layer” means the layer applied to the sublayer or first layer;
  • coating very difficult to achieve with an optimal result due to the lack of cohesion of the sub-layer which does not allow the points of the second layer (upper layer) to be sucked out of the frame;
  • low weight of fusible material due to the difficulty of coating on the first layer (or undercoat);
  • relatively low level of active ingredient in the undercoat (generally less than 50%);
  • hardening of the textile when the underlay is too large in weight.

Ces problèmes sont fortement aggravés lorsque la sous-couche ne possède pas la propriété d'être filmogène, c'est-à-dire de créer une sorte de film continu sur toute la surface du point.These problems are greatly aggravated when the sublayer does not have the property of being film-forming, that is to say of creating a kind of continuous film over the entire surface of the point.

Un premier objet de la présente invention est donc de proposer un entoilage thermocollant qui d'une part permet de pallier les inconvénients mentionnés ci-dessus et, d'autre part, ne transperce pas la draperie et ne produit pas des retours, c'est-à-dire ne transperce pas le support textile de l'entoilage.A first object of the present invention is therefore to propose a fusible interfacing which on the one hand overcomes the drawbacks mentioned above and, on the other hand, does not pierce the drapery and does not produce returns, that is to say does not pierce the textile support of the interlining.

Plus particulièrement, le but de la présente invention est de proposer l'utilisation d'un ou de produit(s) thermo-expansible(s) entrant dans la structure d'entoilage thermocollant, assurant un excellent effet d'écran et un effet de relief, c'est-à-dire un volume utile du point important.More particularly, the aim of the present invention is to propose the use of one or more thermo-expandable product (s) entering the fusible interlining structure, ensuring an excellent screen effect and an effect of relief, that is to say a useful volume of the important point.

Un deuxième objet de la présente invention est de proposer un procédé de fabrication d'un tel entoilage.A second object of the present invention is to propose a method for manufacturing such a covering.

A cet effet, l'invention propose tout d'abord un entoi lage thermocollant semi-fini comportant un support textile et des moyens de thermocollage, destiné à être contrecollé sur un article textile.To this end, the invention firstly provides a semi-finished fusible interlining comprising a textile support and fusing means, intended to be laminated to a textile article.

Selon l'invention, il est associé au support textile une couche de polymères thermo-expansibles, la température d'expansion desdits polymères étant inférieure à la température de mise en oeuvre des moyens thermocollants, la couche de polymères thermo-expansibles ayant pour fonction de constituer un écran vis-à-vis des moyens thermocollants et d'augmenter le relief des moyens thermocollants, ceci ayant pour effet d'éviter les phénomènes de retour et traversée et d'augmenter la force de collage.According to the invention, there is associated with the textile support a layer of heat-expandable polymers, the expansion temperature of said polymers being lower than the temperature of use of the fusible means, the layer of heat-expandable polymers having the function of constitute a screen vis-à-vis the fusible means and to increase the relief of the fusible means, this having the effect of avoiding back and crossing phenomena and increasing the bonding force.

La couche de polymères thermo-expansibles est appliquée, avec une répartition en points, essentiellement sur la surface de l'une des faces du support textile.The layer of heat-expandable polymers is applied, with a distribution in points, essentially on the surface of one of the faces of the textile support.

Selon un premier mode de réalisation possible, une couche d'enduction thermo-adhésive répartie en points est appliquée du même côté et sur les points de polymères thermo-expansibles.According to a first possible embodiment, a layer of thermo-adhesive coating distributed in points is applied on the same side and on the points of thermally expandable polymers.

Selon un deuxième mode de réalisation possible, la couche d'enduction thermo-adhésive répartie en points est appliquée essentiellement sur la face du support textile opposée à la couche de polymères thermo-expansibles.According to a second possible embodiment, the layer of thermo-adhesive coating distributed in points is applied essentially to the face of the textile support opposite the layer of thermo-expandable polymers.

Selon un troisième mode de réalisation possible, la couche de polymères thermo-expansibles est essentiellement imbriquée dans l'épaisseur du support textile. La couche d'enduction thermo-adhésive répartie en points est alors appliquée essentiellement sur l'une des faces du support textile en regard des points de la couche de polymères thermo-expansibles.According to a third possible embodiment, the layer of thermally expandable polymers is essentially nested in the thickness of the textile support. The thermo-adhesive coating layer distributed in points is then applied essentially on one of the faces of the textile support opposite the points of the layer of heat-expandable polymers.

Les polymères thermo-expansibles de la couche thermo-expansible sont choisis dans le groupe incluant les polymères à fonctions chimiques réactives permettant une réticulation sur elles-mêmes. De préférence, ils ont une viscosité comprise entre environ 100 et 500 dPa.s, un taux de matière active compris entre environ 40% et 80%, notamment compris entre 50% et 80%, et un coefficient d'expansion compris entre environ 100% et 275%, plus particulièrement entre 157% et 275%.The heat-expandable polymers of the heat-expandable layer are chosen from the group including polymers with reactive chemical functions allowing crosslinking on themselves. Preferably, they have a viscosity of between approximately 100 and 500 dPa.s, an active material content of between approximately 40% and 80%, especially between 50% and 80%, and an expansion coefficient of between approximately 100 % and 275%, more particularly between 157% and 275%.

Les polymères thermo-expansibles sont choisis dans le groupe incluant les résines synthétiques en dispersion aqueuse du type acrylique, butadiène, polyuréthane.The heat-expandable polymers are chosen from the group including synthetic resins in aqueous dispersion of the acrylic, butadiene, polyurethane type.

La couche d'enduction thermo-adhésive quant à elle comporte un ou plusieurs polymères choisis dans le groupe incluant les polyamides, copolyamides, polyesters, copolyesters, polyuréthanes, polyéthylènes, PVC, seuls ou en mélange entre eux.The thermo-adhesive coating layer, for its part, comprises one or more polymers chosen from the group including polyamides, copolyamides, polyesters, copolyesters, polyurethanes, polyethylenes, PVC, alone or as a mixture between them.

Selon un autre mode de réalisation possible, la couche d'enduction thermo-adhésive comporte un ou plusieurs polymères choisis dans le groupe incluant les copolymères styrène-acrylate d'éthyle, les mélamines, l'aziridine, les isocyanates, les polyesters insaturés, les résines époxy.According to another possible embodiment, the thermo-adhesive coating layer comprises one or more polymers chosen from the group including styrene-ethyl acrylate copolymers, melamines, aziridine, isocyanates, unsaturated polyesters, epoxy resins.

Selon un autre mode de réalisation possible, la couche de polymères thermo-expansibles comprend essentiellement des polymères thermo-expansibles ou un mélange de polymères thermo-expansibles et thermocollants, notamment des acrylates.According to another possible embodiment, the layer of heat-expandable polymers essentially comprises heat-expandable polymers or a mixture of heat-expandable and heat-adhesive polymers, in particular acrylates.

L'invention propose également un entoilage thermocollant fini, dans lequel les polymères thermo-expansibles sont à l'état expansé alors que la couche d'enduction thermo-adhésive est à l'état non fondu. La couche de polymères thermo-expansibles est alors substantiellement continue.The invention also provides a finished fusible interlining, in which the heat-expandable polymers are in the expanded state while the thermo-adhesive coating layer is in the non-molten state. The layer of thermally expandable polymers is then substantially continuous.

L'invention propose enfin un procédé de fabrication d'entoilages thermocollants finis dans lequel un support textile reçoit une enduction thermo-adhésive.The invention finally proposes a process for manufacturing finished fusible linings in which a textile support receives a thermo-adhesive coating.

Selon l'invention, un tel procédé est caractérisé en ce que successivement :

  • on dépose une couche de polymères thermo-expansibles répartie en points sur une des faces du support textile, de manière à ce que les points de la couche thermo-expansible soient en surface du support textile ou imbriqués dans l'épaisseur de ce dernier ;
  • on dépose une couche d'enduction thermo-adhésive sur la couche de polymères thermo-expansibles ou sur la face du support textile opposée à la couche de polymères thermo-expansibles ;
  • on soumet l'ensemble à une température d'expansion inférieure à la température de mise en oeuvre des moyens thermocollants.
According to the invention, such a method is characterized in that successively:
  • a layer of heat-expandable polymers is deposited distributed in points on one of the faces of the textile support, so that the points of the heat-expandable layer are on the surface of the textile support or nested in the thickness of the latter;
  • a layer of thermo-adhesive coating is deposited on the layer of thermally expandable polymers or on the face of the textile support opposite the layer of thermally expandable polymers;
  • the assembly is subjected to an expansion temperature lower than the processing temperature of the fusible means.

La couche de polymères thermo-expansibles est déposée sur une des faces du support textile par un premier cadre rotatif et la couche d'enduction thermo-adhésive par un deuxième cadre rotatif.The layer of heat-expandable polymers is deposited on one of the faces of the textile support by a first rotary frame and the layer of thermo-adhesive coating by a second rotary frame.

Selon une autre variante, on soumet la couche de polymères thermo-expansibles à une température d'expansion inférieure à la température de mise en oeuvre des moyens thermocollants avant de déposer la couche d'enduction thermo-adhésive.According to another variant, the layer of heat-expandable polymers is subjected to an expansion temperature lower than the temperature at which the fusible means are used before depositing the layer of thermo-adhesive coating.

Selon une autre variante, après le dépôt de la couche de polymères thermo-expansibles et avant le dépôt de la couche d'enduction thermo-adhésive :

  • on porte la couche de polymères thermo-expansibles à une température d'expansion inférieure à la température de mise en oeuvre des moyens thermocollants et à la température de déformation du support textile ;
  • on réalise un certain calandrage à froid de la couche de polymères thermo-adhésifs pour éliminer le relief excédentaire.
According to another variant, after the deposition of the layer of thermally expandable polymers and before the deposition of the thermo-adhesive coating layer:
  • the layer of heat-expandable polymers is brought to an expansion temperature lower than the processing temperature of the fusible means and the deformation temperature of the textile support;
  • some cold calendering of the layer of thermo-adhesive polymers is carried out in order to remove the excess relief.

Selon une autre variante :

  • on dépose par saupoudrage la couche d'enduction thermo-adhésive sur la couche de polymères thermo-expansibles ;
  • on effectue un battage de manière à décrocher la partie de la couche d'enduction thermo-adhésive non-ancrée dans la couche de polymères thermo-expansibles ;
  • on effectue une aspiration pour éliminer la partie de la couche d'enduction thermo-adhésive non associée à la couche de polymères thermo-expansibles.
According to another variant:
  • the thermo-adhesive coating layer is deposited by dusting on the layer of thermally expandable polymers;
  • threshing is carried out so as to unhook the part of the thermo-adhesive coating layer which is not anchored in the layer of heat-expandable polymers;
  • suction is carried out to remove the part of the thermo-adhesive coating layer not associated with the layer of thermally expandable polymers.

Enfin, selon une dernière variante, on dépose la couche de polymères thermo-expansibles et la couche d'enduction thermo-adhésive de façon sensiblement simultanée.Finally, according to a last variant, the layer of thermally expandable polymers and the layer of thermo-adhesive coating are deposited substantially simultaneously.

Pour la mise en oeuvre de l'invention :

  • la température d'expansion est comprise entre environ 110°C et 160°C, plus particulièrement entre 130°C et 160°C ;
  • on dépose les polymères thermo-expansibles de la couche de polymères thermo-expansibles sous forme de pâte.
For the implementation of the invention:
  • the expansion temperature is between approximately 110 ° C and 160 ° C, more particularly between 130 ° C and 160 ° C;
  • the thermally expandable polymers are deposited from the layer of thermally expandable polymers in the form of a paste.

Selon un autre mode de réalisation possible, on dépose les polymères thermo-expansibles de la couche thermo-expansible sous forme de mousse.According to another possible embodiment, the heat-expandable polymers are deposited from the heat-expandable layer in the form of foam.

L'utilisation de tels polymères thermo-expansibles dans la couche enduite sur le support textile garantit ainsi sa parfaite continuité.The use of such heat-expanding polymers in the layer coated on the textile support guarantees thus its perfect continuity.

En effet, lors du chauffage à la température d'expansion, cette couche subit une réaction chimique de réticulation avec dégagement gazeux (par exemple : azote, ammoniac, dioxyde de carbone, etc.) qui reste emprisonné dans la masse de polymères sous forme de bulles. La formation de ces bulles provoque l'expansion du polymère dans les trois dimensions créant ainsi macroscopiquement une solution de continuité, garantissant un excellent effet d'écran.Indeed, during heating to the expansion temperature, this layer undergoes a chemical crosslinking reaction with gas evolution (for example: nitrogen, ammonia, carbon dioxide, etc.) which remains trapped in the mass of polymers in the form of bubbles. The formation of these bubbles causes the polymer to expand in three dimensions, thus macroscopically creating a solution of continuity, guaranteeing an excellent screen effect.

La cohésion de ces produits thermo-expansibles leur permet d'être employés en quantité plus faible et donc de ne pas gêner le dépôt d'une deuxième couche.The cohesion of these heat-expandable products allows them to be used in smaller quantities and therefore not to hinder the deposition of a second layer.

Leur qualité filmogène, associée à un effet de "tack" assez important avant traitement thermique, permet à une deuxième couche d'être mieux liée à la première.Their film-forming quality, associated with a fairly significant "tack" effect before heat treatment, allows a second layer to be better bonded to the first.

Comme nous le verrons dans ce qui suit, les polymères thermo-expansibles peuvent être utilisés avec des taux de matière active très supérieurs à 50%, et par là même assurer un bon effet d'écran avec peu de matière.As we will see in what follows, the thermo-expandable polymers can be used with active material levels much greater than 50%, and thereby ensure a good screen effect with little material.

Ceci génère un avantage énorme par rapport aux produits classiques utilisés comme sous-couche quant au maintien d'une "main" parfaitement adaptée à l'usage du produit final.This generates a huge advantage compared to conventional products used as an underlay in terms of maintaining a "hand" perfectly suited to the use of the final product.

Par ailleurs, il est bien connu que la force de collage est intimement liée au relief des points. Plus le relief des points est augmenté, plus la force de collage est importante.Furthermore, it is well known that the bonding force is intimately linked to the relief of the points. The more the points are raised, the greater the bonding force.

En effet, pour que le polymère thermocollant accroche parfaitement le textile sur lequel il doit être contrecollé, il doit y pénétrer. Cette action est nettement favorisée si le volume utile du point est important.In fact, for the fusible polymer to perfectly grip the textile on which it is to be laminated, it must penetrate it. This action is clearly favored if the useful volume of the point is large.

Classiquement, un effet de relief est obtenu avec plus ou moins de succès en jouant sur l'épaisseur des cadres d'enduction, le poids déposé, la viscosité du polymère thermocollant ou la quantité et la viscosité du produit utilisé comme sous-couche.Conventionally, a relief effect is obtained with more or less success by varying the thickness of the coating frames, the weight deposited, the viscosity of the fusible polymer or the quantity and viscosity of the product used as an undercoat.

La réalisation de ce relief se traduit très souvent par une dégradation de la qualité de la "main" du complexe entoilage/article textile.The realization of this relief very often results in a degradation of the quality of the "hand" of the interlining / textile article complex.

L'utilisation de produits thermo-expansibles dans l'entoilage thermocollant du type de l'invention évite cet inconvénient tout en tirant le plein bénéfice de l'effet de relief.The use of heat-expandable products in the fusible interlining of the type of the invention avoids this drawback while taking full advantage of the relief effect.

Comme décrit précédemment, la réaction chimique crée une expansion tridimensionnelle permettant à la couche d'enduction thermo-adhésive supérieure d'être utilisable à 100% pour le contrecollage.As described above, the chemical reaction creates a three-dimensional expansion allowing the upper thermo-adhesive coating layer to be 100% usable for laminating.

La hauteur de cette couche est parfaitement ajustable en combinant la propriété intrinsèque du produit donnant un volume d'expansion donné pour une température donné à son degré de dilution.The height of this layer is perfectly adjustable by combining the intrinsic property of the product giving a given volume of expansion for a given temperature at its degree of dilution.

Ainsi, au moment du contrecollage, la couche de polymères thermo-expansibles n'entrave pas la qualité de la "main" du produit final du fait de sa perte de volume d'expansion suite au passage à la presse à thermocoller du complexe entoilage/article textile.Thus, at the time of lamination, the layer of heat-expandable polymers does not hamper the quality of the "hand" of the final product due to its loss of expansion volume following the passage to the heat-sealing press of the interlining / textile article complex.

Les autres caractéristiques de l'invention seront bien comprises grâce à la description qui suivra en référence aux dessins annexés dans lesquels :

  • La figure 1 est une vue schématique en coupe transversale d'une première variante de l'entoilage thermocollant semi-fini, objet de l'invention, l'article textile auquel il est destiné étant également représenté éloigné de l'entoilage pour repérer sa localisation.
  • La figure 2 est une vue schématique en coupe transversale d'une deuxième variante de l'entoilage thermocollant semi-fini, objet de l'invention, l'article textile auquel il est destiné étant également représenté éloigné de l'entoilage pour repérer sa localisation.
  • La figure 3 est une vue schématique en coupe transversale d'une troisième variante de l'entoilage thermocollant semi-fini, objet de l'invention, l'article textile auquel il est destiné étant également représenté éloigné de l'entoilage pour repérer sa localisation.
  • Les figures 4A, 4B et 4C sont trois vues schématiques en coupe transversale respectivement d'une première, deuxième et troisième variante de l'entoilage thermocollant fini, objet de l'invention, l'article textile auquel il est destiné étant également représenté éloigné de l'entoilage pour repérer sa localisation.
The other characteristics of the invention will be well understood thanks to the description which follows with reference to the accompanying drawings in which:
  • Figure 1 is a schematic cross-sectional view of a first variant of the semi-finished fusible interfacing, object of the invention, the textile article for which it is intended also being shown away from the interfacing to identify its location .
  • Figure 2 is a schematic cross-sectional view of a second variant of the semi-finished fusible interlining, object of the invention, the textile article for which it is intended also being shown away from the interlining to identify its location .
  • Figure 3 is a schematic cross-sectional view of a third variant of the semi-finished fusible interlining, object of the invention, the textile article for which it is intended also being shown away from the interlining to identify its location .
  • FIGS. 4A, 4B and 4C are three schematic cross-section views respectively of a first, second and third variant of the finished fusible interfacing, object of the invention, the textile article for which it is intended also being shown away from the stabilizer to identify its location.

L'entoilage thermocollant 1 semi-fini selon l'invention comporte un support textile 3 et des moyens de thermocollage. Il est destiné à être contrecollé sur un article textile 2, par exemple une draperie.The semi-finished fusible interlining 1 according to the invention comprises a textile support 3 and fusing means. It is intended to be laminated on a textile article 2, for example a drapery.

Il est associé au support textile 3 une couche 5 de polymères thermo-expansibles, la température d'expansion desdits polymères thermo-expansibles étant inférieure à la température de mise en oeuvre des moyens thermocollants, la couche 5 de polymères thermo-expansibles ayant pour fonction de constituer un écran vis-à-vis des moyens thermocollants et d'augmenter le relief des moyens thermocollants, ceci ayant pour effet d'éviter les phénomènes de retour et traversée et d'augmenter la force de collage.It is associated with the textile support 3 a layer 5 of heat-expandable polymers, the expansion temperature of said heat-expandable polymers being lower than the temperature of implementation of the fusible means, the layer 5 of heat-expandable polymers having the function to form a screen vis-à-vis the fusible means and to increase the relief of the fusible means, this having the effect of avoiding the phenomena of return and crossing and of increasing the bonding force.

On entend ici par entoilage thermocollant semi-fini, l'entoilage thermocollant dans l'état où il se trouve avant que la couche 5 de polymères thermo-expansibles ait été soumise à la température d'expansion desdits polymères.The term “semi-finished fusible interlining” is understood here to mean the fusible interlining in the state it is in before the layer 5 of heat-expandable polymers has been subjected to the expansion temperature of said polymers.

La couche 5 de polymères thermo-expansibles est donc associée au support textile 3, ce qui signifie qu'elle peut être en contact avec ou incorporée dans le support textile 3.The layer 5 of thermally expandable polymers is therefore associated with the textile support 3, which means that it can be in contact with or incorporated into the textile support 3.

Cette couche 5 de polymères thermo-expansibles est appliquée, avec une répartition en points 7, essentiellement sur la surface de l'une des faces du support textile 3.This layer 5 of thermally expandable polymers is applied, with a distribution in points 7, essentially on the surface of one of the faces of the textile support 3.

L'entoilage thermocollant 1 semi-fini selon l'invention comprend également une couche 4 d'enduction thermo-adhésive répartie en points 6.The semi-finished fusible interlining 1 according to the invention also comprises a layer 4 of thermo-adhesive coating distributed in points 6.

Selon une première variante représentée figure 1, cette couche 4 d'enduction thermo-adhésive répartie en points 6 est appliquée du même côté et sur les points 7 de polymères thermo-expansibles ; la répartition des points 6, 7 respectivement des couches 4 et 5 étant sensiblement identique.According to a first variant represented in FIG. 1, this layer 4 of thermo-adhesive coating distributed in points 6 is applied on the same side and on points 7 of heat-expandable polymers; the distribution of points 6, 7 respectively of layers 4 and 5 being substantially identical.

Selon une deuxième variante représentée figure 2, la couche 4 d'enduction thermo-adhésive répartie en points 6 est appliquée essentiellement sur la face du support textile 3 opposée à la couche 5 de polymères thermo-expansibles, ces points 6 de la couche 4 étant distribués en regard des points 7 de la couche 5.According to a second variant represented in FIG. 2, the layer 4 of heat-adhesive coating distributed in points 6 is applied essentially to the face of the textile support 3 opposite to the layer 5 of heat-expandable polymers, these points 6 of layer 4 being distributed next to points 7 of layer 5.

Selon une troisième variante représentée figure 3, la couche 5 de polymères thermo-expansibles est essentiellement imbriquée dans l'épaisseur du support textile 3. On comprend par là que les polymères thermo-expansibles se logent dans les intervalles laissés libres entre les fils du support textile 3.According to a third variant shown in Figure 3, the layer 5 of heat-expandable polymers is essentially nested in the thickness of the textile support 3. It is understood by this that the heat-expandable polymers are housed in the gaps left free between the son of the support textile 3.

Un tel résultat est obtenu en travaillant le ou les polymère(s) thermo-expansible(s) avec un faible coefficient d'expansion et/ou avec un taux de dilution adapté.Such a result is obtained by working the thermo-expandable polymer (s) with a low coefficient of expansion and / or with a suitable dilution rate.

La couche 4 d'enduction thermo-adhésive est alors appliquée essentiellement sur l'une des faces du support textile 3 en regard des points 7 de la couche 5 de polymères thermo-expansibles.The layer 4 of thermo-adhesive coating is then applied essentially to one of the faces of the textile support 3 opposite points 7 of the layer 5 of heat-expandable polymers.

On comprend ainsi que lorsque l'on soumet l'ensemble à une température d'expansion inférieure à la température de mise en oeuvre des moyens thermocollants, la couche 5 en s'expansant va boucher les intervalles laissés libres entre les fils du support textile 3 (voir figure 4B) et en conséquence constituer un excellent effet d'écran évitant les phénomènes de retour et traversée.It is thus understood that when the assembly is subjected to an expansion temperature lower than the temperature for implementing the fusible means, the layer 5, by expanding, will fill the gaps left free between the threads of the textile support 3 (see Figure 4B) and therefore constitute an excellent screen effect avoiding return and crossing phenomena.

Le ou les polymère(s) thermo-expansible(s) de la couche 5 sont choisis dans le groupe incluant les polymères à fonctions chimiques réactives permettant une réticulation sur elles-mêmes.The thermo-expandable polymer (s) of layer 5 are chosen from the group including polymers with reactive chemical functions allowing crosslinking on themselves.

Le ou les polymère(s) thermo-expansible(s) est (sont) choisi(s) dans le groupe incluant les polymères ayant une viscosité comprise entre environ 100 et 500 dPa.s.The thermo-expandable polymer (s) is (are) chosen from the group including polymers having a viscosity of between approximately 100 and 500 dPa.s.

Les polymères thermo-expansibles se présentent ainsi sous la forme d'une pâte plus ou moins visqueuse et possèdent des propriétés rhéologiques qui leur permettent d'être manipulés sans quasiment aucune dissolution ou rajout important d'eau tout en possédant un coefficient de cohésion relativement élevé.The heat-expandable polymers are thus in the form of a more or less viscous paste and have rheological properties which allow them to be handled without practically any dissolution or significant addition of water while having a relatively high cohesion coefficient. .

Les polymères thermo-expansibles peuvent être utilisés avec des taux de matière active très supérieurs à 50%, et ainsi assurer un bon effet d'écran avec peu de matière. Cette propriété des polymères thermo-expansibles alliée à leur cohésion relativement élevée, leur permet d'être employés en quantité plus faible et ainsi de ne pas entraver le dépôt de la couche 4 d'enduction thermo-adhésive.The heat-expandable polymers can be used with active material levels much higher than 50%, and thus ensure a good screen effect with little material. This property of thermally expandable polymers, combined with their relatively high cohesion, allows them to be used in a smaller quantity and thus not to impede the deposition of layer 4 of thermo-adhesive coating.

A titre d'exemple non limitatif, on peut mentionner les résultats expérimentaux suivants obtenus pour un polymère porté à une température de 130°C. Son coefficient d'expansion est fonction de son taux de matière active : Taux de matière active Coefficient d'expansion 80% 135% 60% 115% 40% 80% By way of nonlimiting example, the following experimental results obtained for a polymer brought to a temperature of 130 ° C. may be mentioned. Its expansion coefficient is a function of its active matter rate: Active ingredient rate Coefficient of expansion 80% 135% 60% 115% 40% 80%

Selon l'invention, les polymères thermo-expansibles de la couche 5 sont choisis dans le groupe incluant les polymères ayant un taux de matière active compris entre environ 40% et 80%, notamment compris entre 50% et 80%.According to the invention, the heat-expandable polymers of layer 5 are chosen from the group including polymers having an active material content of between about 40% and 80%, in particular between 50% and 80%.

Par ailleurs, la hauteur de la couche 5 de polymères thermo-expansibles, c'est-à-dire le volume utile des points (ou encore relief des points) est tout à fait ajustable en combinant la propriété intrinsèque des polymères thermo-expansibles donnant un volume ou coefficient d'expansion donné pour une température donnée à son degré de dilution.Furthermore, the height of the layer 5 of heat-expandable polymers, that is to say the useful volume of the points (or even relief of the points) is completely adjustable by combining the intrinsic property of the heat-expandable polymers giving a given volume or coefficient of expansion for a given temperature at its degree of dilution.

A titre d'exemple, on peut mentionner les résultats expérimentaux selon le tableau suivant obtenus pour des dispersions à 80% de matière active de deux polymères thermo-expansibles I et II différents par leur masse moléculaire et leur composition chimique : Température Coefficient d'expansion Polymère thermo-expansible I Polymère thermo-expansible II 110°C 100% 240% 120°C 125% 258% 130°C 157% 275% 140°C 152% 245% As an example, we can mention the experimental results according to the following table obtained for dispersions at 80% of active material of two heat-expandable polymers I and II different by their molecular mass and their chemical composition: Temperature Coefficient of expansion Heat-expandable polymer I Heat-expandable polymer II 110 ° C 100% 240% 120 ° C 125% 258% 130 ° C 157% 275% 140 ° C 152% 245%

Les polymères thermo-expansibles, selon l'invention, de la couche 5 sont choisis dans le groupe incluant les polymères ayant un coefficient d'expansion compris entre environ 100% et 275%, plus particulièrement entre 157% et 275%.The thermally expandable polymers, according to the invention, of layer 5 are chosen from the group including polymers having an expansion coefficient of between approximately 100% and 275%, more particularly between 157% and 275%.

Les polymères thermo-expansibles utilisés sont choisis dans le groupe incluant les résines synthétiques en dispersion aqueuse du type acrylique, butadiène, polyuréthane.The heat-expandable polymers used are chosen from the group including synthetic resins in aqueous dispersion of the acrylic, butadiene, polyurethane type.

La couche 4 d'enduction thermo-adhésive, quant à elle, comporte un ou plusieurs polymères choisis dans le groupe incluant les polyamides, copolyamides, polyesters, copolyesters, polyuréthanes, polyéthylènes.The layer 4 of thermo-adhesive coating, for its part, comprises one or more polymers chosen from the group including polyamides, copolyamides, polyesters, copolyesters, polyurethanes, polyethylenes.

Dans un autre mode de réalisation possible, la couche 4 comporte un ou plusieurs polymères choisis dans le groupe incluant les copolymères styrène-acrylate d'éthyle, les mélamines, l'aziridine, les isocyanates, les polyesters insaturés, les résines époxy.In another possible embodiment, layer 4 comprises one or more polymers chosen from the group including styrene-ethyl acrylate copolymers, melamines, aziridine, isocyanates, unsaturated polyesters, epoxy resins.

Enfin, dans un dernier mode de réalisation possible, la couche 5 comprend essentiellement des polymères thermo-expansibles.Finally, in a last possible embodiment, the layer 5 essentially comprises heat-expandable polymers.

En effet, bien que les polymères thermo-expansibles soient intrinsèquement non thermocollants, après enduction à température contrôlée pour éviter la réticulation, le passage sur presse à thermocoller permet la réticulation en emprisonnant les fils du support textile 3 et de l'article textile 2. On obtient ainsi un accrochage du type mécanique.In fact, although the thermally expandable polymers are intrinsically non-fusible, after coating at a controlled temperature to avoid crosslinking, the passage on a fusible press allows crosslinking by trapping the threads of the textile support 3 and of the textile article 2. This gives a mechanical type of attachment.

La couche 5 peut également comprendre un mélange de polymères thermo-expansibles et thermocollants, notamment des acrylates.Layer 5 can also comprise a mixture of heat-expandable and heat-bonding polymers, in particular acrylates.

L'invention concerne également un entoilage thermocollant fini (figures 4A, 4B et 4C) qui est tel qu'il est constitué par un entoilage semi-fini du type décrit ci-dessus dans lequel les polymères thermo-expansibles de la couche 5 sont à l'état expansé alors que la couche 4 d'enduction thermo-adhésive est à l'état non fondu. Un tel entoilage thermocollant fini est donc destiné à être stocké, généralement sous forme de rouleau, pour être ensuite ultérieurement contrecollé sur un article textile 2.The invention also relates to a finished fusible interlining (FIGS. 4A, 4B and 4C) which is such that it consists of a semi-finished interlining of the type described above in which the heat-expandable polymers of layer 5 are the expanded state while the layer 4 of thermo-adhesive coating is in the non-molten state. Such a finished fusible interlining is therefore intended to be stored, generally in the form of a roll, to then be subsequently laminated to a textile article 2.

Les figures 4B et 4C représentent deux vues schématiques d'un entoilage thermocollant fini qui tel qu'il est constitué par un entoilage semi-fini du type décrit ci-dessus est représenté par la figure 3. La différence entre les figures 4B et 4C est le nombre de Mesh de l'enduction de la couche 5 de polymères thermo-expansibles.FIGS. 4B and 4C represent two schematic views of a finished fusible interlining which, as it consists of a semi-finished interlining of the type described above, is represented by FIG. 3. The difference between FIGS. 4B and 4C is the Mesh number of the coating of layer 5 of thermally expandable polymers.

On entend par état expansé, soit un état du type mousse ou poreux, c'est-à-dire comportant des bulles de gaz suite à la réaction de réticulation avec dégagement gazeux, soit un état dans lequel le polymère expansé a perdu tout son volume lors d'un calandrage qui libère les bulles de gaz emprisonnées dans la masse réticulée.By expanded state is meant either a foam or porous type, that is to say comprising gas bubbles following the crosslinking reaction with gas evolution, or a state in which the expanded polymer has lost all its volume. during calendering which releases the gas bubbles trapped in the crosslinked mass.

La couche 5 de polymères thermo-expansibles est ainsi substantiellement continue.Layer 5 of thermally expandable polymers is thus substantially continuous.

L'invention concerne enfin un procédé de fabrication d'entoilages thermocollants finis dans lequel un support textile 3 reçoit une enduction thermo-adhésive.The invention finally relates to a method of manufacture of finished fusible linings in which a textile support 3 receives a thermo-adhesive coating.

Dans ce procédé, on dépose d'abord une couche 5 de polymères thermo-expansibles répartie en points 7 sur une des faces du support textile 3, de manière à ce que les points 7 de la couche 5 soient en surface du support textile 3 ou imbriqués dans l'épaisseur de ce dernier.In this process, a layer 5 of heat-expandable polymers is first deposited distributed in points 7 on one of the faces of the textile support 3, so that the points 7 of the layer 5 are on the surface of the textile support 3 or nested in the thickness of the latter.

Puis, on dépose une couche 4 d'enduction thermo-adhésive sur la couche 5 de polymères thermo-expansibles ou sur la face du support textile 3 opposée à la couche 5.Then, a layer 4 of thermo-adhesive coating is deposited on layer 5 of thermally expandable polymers or on the face of the textile support 3 opposite to layer 5.

Puis, on soumet l'ensemble 3, 4, 5 à une température d'expansion inférieure à la température de mise en oeuvre des moyens thermocollants.Then, the assembly 3, 4, 5 is subjected to an expansion temperature lower than the processing temperature of the fusible means.

Dans une première variante, on dépose la couche 5 de polymères thermo-expansibles sur une des faces du support textile 3 par un premier cadre rotatif et la couche 4 d'enduction thermo-adhésive sur la couche 5 ou sur la face du support textile 3 opposée à la couche 5 par un deuxième cadre rotatif.In a first variant, the layer 5 of heat-expandable polymers is deposited on one of the faces of the textile support 3 by a first rotary frame and the layer 4 of heat-adhesive coating on the layer 5 or on the face of the textile support 3 opposite layer 5 by a second rotating frame.

Dans le cas où l'on dépose la couche 4 d'enduction thermo-adhésive sur la couche 5, on peut alors éventuellement soumettre la couche 5 à une température d'expansion inférieure à la température de mise en oeuvre des moyens thermocollants avant de déposer la couche 4 d'enduction thermo-adhésive.In the case where the layer 4 of thermo-adhesive coating is deposited on the layer 5, it is then possible optionally to subject the layer 5 to an expansion temperature lower than the temperature of implementation of the fusible means before depositing layer 4 of thermo-adhesive coating.

Le dépôt de la couche 4 d'enduction thermo-adhésive ne posera donc pas de problème car il se fera sur une surface réticulée parfaitement adaptée pour recevoir le dépôt d'une dispersion de polymères thermocollants.The deposition of the layer 4 of thermo-adhesive coating will therefore not pose any problem because it will be done on a crosslinked surface perfectly adapted to receive the deposit of a dispersion of fusible polymers.

Dans le cas où l'on dépose la couche 4 d'enduction thermo-adhésive sur la face du support textile 3 opposée à la couche 5, on peut envisager une mise en oeuvre possible en une ou deux étapes.In the case where the heat-adhesive coating layer 4 is deposited on the face of the textile support 3 opposite to the layer 5, it is possible to envisage a possible implementation in one or two stages.

Pour une mise en oeuvre en une étape, on dépose la couche 5 de polymères thermo-expansibles et la couche 4 d'enduction thermo-adhésive de façon sensiblement simultanée.For an implementation in one step, the layer 5 of heat-expandable polymers and the layer 4 of heat-adhesive coating are deposited substantially simultaneously.

Pour une mise en oeuvre en deux étapes, après le dépôt de la couche 5 de polymères thermo-expansibles et avant le dépôt de la couche 4 d'enduction thermo-adhésive :

  • on porte la couche 5 à une température d'expansion inférieure à la température de mise en oeuvre des moyens thermocollants et à la température de déformation du support textile 3 ;
  • on réalise un certain calandrage à froid de la couche 5 pour éliminer le relief excédentaire.
For an implementation in two stages, after the deposition of layer 5 of thermally expandable polymers and before the deposition of layer 4 of thermo-adhesive coating:
  • the layer 5 is brought to an expansion temperature below the processing temperature of the fusible means and the deformation temperature of the textile support 3;
  • some cold calendering of layer 5 is carried out to eliminate the excess relief.

L'enduction de la couche 4 d'enduction thermo-adhésive en face de chaque point 7 de la couche et du côté opposé au substrat textile 3 ainsi que le séchage de cette dernière peuvent alors être réalisés sans souci de détérioration de la couche 5.The coating of the layer 4 of thermo-adhesive coating opposite each point 7 of the layer and on the side opposite to the textile substrate 3 as well as the drying of the latter can then be carried out without worrying about deterioration of the layer 5.

Dans une deuxième variante, on dépose la couche 5 de polymères thermo-expansibles sur une des faces du support textile 3 par un cadre rotatif.In a second variant, the layer 5 of heat-expandable polymers is deposited on one of the faces of the textile support 3 by a rotary frame.

On dépose par saupoudrage la couche 4 d'enduction thermo-adhésive sur la couche 5.Layer 4 of thermo-adhesive coating is deposited by dusting on layer 5.

On effectue une aspiration pour éliminer la partie de la couche 4 d'enduction thermo-adhésive non associée à la couche 5.Suction is carried out to remove the part of layer 4 of thermo-adhesive coating not associated with layer 5.

Les polymères thermo-expansibles présentent la propriété d'être poisseux à température ambiante lorsqu'ils n'ont pas encore subi la contrainte thermique déclenchant la réaction de réticulation. Ces polymères peuvent donc être enduits classiquement par cadre rotatif après leur mise en dispersion au taux de matière active prédéterminé en fonction de l'effet de relief souhaité.Heat-expandable polymers have the property of being tacky at room temperature when they have not yet undergone the thermal stress triggering the crosslinking reaction. These polymers can therefore be conventionally coated with a rotary frame after they have been dispersed at the rate of active material predetermined as a function of the desired relief effect.

La température d'expansion pour la mise en oeuvre d'un tel procédé est comprise entre environ 110°C et 160°C, plus particulièrement entre 130°C et 160°C.The expansion temperature for the implementation of such a process is between approximately 110 ° C and 160 ° C, more particularly between 130 ° C and 160 ° C.

Dans un mode de réalisation préféré, on dépose les polymères thermo-expansibles de la couche 5 sous forme de pâte mais le dépôt de ces polymères sous forme de mousse est également possible.In a preferred embodiment, the heat-expandable polymers of the layer 5 are deposited in the form of a paste, but the deposition of these polymers in the form of foam is also possible.

La mise en oeuvre de l'invention permet la réalisation d'entoilages thermocollants de qualité notamment en ce qu'ils ne sont pas sujet aux problèmes de traversée et retour, du fait de l'utilisation de polymères thermo-expansibles qui, en plus de leurs propriétés spécifiques, possèdent les propriétés communes à tous les polymères thermodurcissables dont celles rappelées par la liste non exhaustive suivante :

  • Inertie chimique aux solvants chlorés et autres produits de nettoyage vestimentaire.
  • Inertie face à l'hydrolyse pendant les lavages ou les vaporisages.
  • Inertie thermique dans les conditions de pression et de température généralement utilisées pour la confection et le traitement des vêtements.
  • Aptitude à la coloration pigmentaire.
  • Accrochage mécanique sur les fibres textiles et donc totalement indépendant de la nature des fibres.
The implementation of the invention allows the production of quality fusible linings, in particular in that they are not subject to the problems of crossing and returning, due to the use of thermally expandable polymers which, in addition to their specific properties, have the properties common to all thermosetting polymers including those recalled by the following non-exhaustive list:
  • Chemical inertness to chlorinated solvents and others clothing cleaning preparations.
  • Inertia to hydrolysis during washing or spraying.
  • Thermal inertia under the pressure and temperature conditions generally used for making and treating clothing.
  • Suitability for pigmentary coloring.
  • Mechanical attachment to textile fibers and therefore completely independent of the nature of the fibers.

Claims (25)

  1. A semifinished fusible interlining (1) including a textile base fabric (3) and thermofusing means, intended to be bonded on a textile article (2), characterised in that there is associated with the textile base fabric (3) a layer (5) of thermoexpansible polymers applied, distributed by points (7), essentially on the surface of one of the faces of the textile base fabric (3), the expansion temperature of said polymers being inferior to the temperature at which the fusible means are implemented, the layer (5) of thermoexpansible polymers undergoing, when heated to the expansion temperature, a chemical cross-linkage reaction with release of gas which remains trapped within the mass of polymers in the form of bubbles thus ensuring a continuous distribution of the layer (5), the fonction of the layer (5) of thermoexpansible polymers being to constitute a screen with respect to the fusible means and to increase the relief of the fusible means, which has the effect of avoiding the return and traverse phenomena and increasing the bonding strength.
  2. A semifinished fusible interlining (1) according to claim 1, characterized in that a layer (4) of thermoadhesive coating distributed by points (6) is applied on the same side as and on the points (7) of thermoexpansible polymers.
  3. A semifinished fusible interlining (1) according to claim 1, characterized in that the layer (4) of thermoadhesive coating distributed by points (6) is applied essentially on the face of the textile base fabric (3) opposite to the layer (5) of thermoexpansible polymers.
  4. A semifinished fusible interlining (1) according to claim 1, characterised in that the layer (5) of thermoexpansible polymers is essentially imbricated in the thickness of the textile base fabric (3).
  5. A semifinished fusible interlining (1) according to claim 4, characterised in that the layer (4) of thermoadhesive coating distributed by points (6) is applied essentially on one of the faces of the textile base fabric (3) facing the points (7) of the layer (5) of thermoexpansible polymers.
  6. A semifinished fusible interlining (1) according to any of claims 1 to 5, characterised in that thermoexpansible polymers of the layer (5) are chosen from the group including the polymers with chemical reaction properties enabling a cross-linkage on themselves.
  7. A semifinished fusible interlining (1) according to any of claims 1 to 6, characterised in that thermoexpansible polymers of the layer (5) are chosen from the group including the polymers having a viscosity comprised between approximately 100 and 500 dPa.s.
  8. A semifinished fusible interlining (1) according to any of claims 1 to 7, characterised in that thermoexpansible polymers of the layer (5) are chosen from the group including the polymers having an active ingredient ratio comprised between approximately 40 and 80%, more particularly between 50 and 80%.
  9. A semifinished fusible interlining (1) according to any of claims 1 to 8, characterised in that thermoexpansible polymers of the layer (5) are chosen from the group including the polymers having an expansion coefficient comprised between approximately 100 and 275%, more particularly between 157 and 275%.
  10. A semifinished fusible interlining (1) according to any of claims 1 to 9, characterised in that thermoexpansible polymers of the layer (5) are chosen from the group including the aqueous-disperse synthetic resins of acrylic, butadiene, polyurethane type.
  11. A semifinished fusible interlining (1) according to any of claims 1 to 10, characterised in that the layer (4) of thermoadhesive coating comprises one or more polymers chosen from the group including polyamides, copolyamides, polyesters, copolyesters, polyurethanes, polyethylenes, PVC, alone or mixed together.
  12. A semifinished fusible interlining (1) according to any of claims 1 to 10, characterised in that the layer (4) of thermoadhesive coating comprises one or more polymers chosen from the group including ethyl styrene-acrylate copolymers, melanins, aziridine, isocyanates, unsaturate polyesters, epoxy resins.
  13. A semifinished fusible interlining (1) according to any of claims 1 to 12, characterised in that the layer (5) essentially comprises thermoexpansible polymers or a mixture of thermoexpansible and fusible polymers, more particularly acrylates.
  14. A semifinished fusible interlining, characterised in that it consists of a semifinished interlining according to any of claims 1 to 13 in which the thermoexpansible polymers of the layer (5) are in expanded state whereas the layer (4) of thermoadhesive coating is in non fused state.
  15. A finished fusible interlining according to claim 14, characterised in that the layer (5) of thermoexpansible polymers is substantially continuous.
  16. A process for manufacturing finished fusible interlinings according to claim 14 or 15 in which a textile base fabric (3) receives a thermoadhesive coating, characterised in that, successively:
    - a layer (5) of thermoexpansible polymers distributed by points (7) is deposited on one of the faces of the textile base fabric (3), so that the points (7) of the layer (5) are on the surface of the textile base fabric (3) or imbricated in the thickness of the latter;
    - a layer (4) of thermoadhesive coating is deposited on the layer (5) of thermoexpansible polymers or on the face of the textile base fabric (3) opposite to the layer (5);
    - the whole (3, 4, 5) is subject to an expansion temperature inferior to the temperature at which the fusible means are implemented.
  17. A process for manufacturing fusible interlinings according to claim 16, characterised in that the layer (5) of thermoexpansible polymers is deposited on one of the faces of the textile base fabric (3) by a first rotary screen.
  18. A process for manufacturing fusible interlinings according to claim 16 or 17, characterised in that the layer (4) of thermoadhesive coating is deposited on the layer (5) or on the face of the textile base fabric (3) opposite to the layer (5) by a second rotary screen.
  19. A process for manufacturing fusible interlinings according to any of claims 16 to 18, characterised in that the layer (5) of thermoexpansible polymers is subject to an expansion temperature inferior to the temperature at which the fusible means are implemented before depositing the layer (4) of thermoadhesive coating.
  20. A process for manufacturing fusible interlinings according to any of claims 16 to 18, characterised in that after depositing the layer (5) of thermoexpansible polymers and before depositing the layer (4) of thermoadhesive coating :
    - the layer (5) is heated to an expansion temperature inferior to the temperature at which the fusible means are implemented and the deformation temperature of the textile base fabric (3);
    - a cold calendering of the layer (5) is performed to eliminate the excess relief.
  21. A process for manufacturing fusible interlinings according to claim 16 or 17, characterised in that:
    - the layer (4) of thermoadhesive coating is deposited on the layer (5) by dusting;
    - beating is performed so as to detach the part of the layer (4) of thermoadhesive coating which is not anchored in the layer (5);
    - suction is performed to eliminate the part of the layer (4) of thermoadhesive coating which is not associated with the layer (5).
  22. A process for manufacturing fusible interlinings according to any of claims 16 to 18, characterized in that the layer (5) of thermoexpansible polymers and the layer (4) of thermoadhesive coating are deposited in a substantially simultaneous manner.
  23. A process for manufacturing fusible interlinings according to any of claims 16 to 22, characterised in that the expansion temperature is comprised between approximately 110 and 160°C, more particularly between 130 and 160°C.
  24. A process for manufacturing fusible interlinings according to any of claims 16 to 23, characterised in that the thermoexpansible polymers of the layer (5) are deposited in the form of a paste.
  25. A process for manufacturing fusible interlinings according to any of claims 16 to 23, characterised in that the thermoexpansible polymers of the layer (5) are deposited in the form of a foam.
EP92403289A 1991-12-20 1992-12-04 Fusible interlining for stiffening and the method for its manufacture Expired - Lifetime EP0549392B1 (en)

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FR9115871 1991-12-20
FR9115871A FR2685171B1 (en) 1991-12-20 1991-12-20 THERMAL ADHESIVE COVER AND MANUFACTURING METHOD THEREOF.

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EP0549392B1 true EP0549392B1 (en) 1996-05-01

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NL1022253C2 (en) * 2002-12-23 2004-06-25 Ten Cate Permess B V Interlining material useful for making or repairing clothing comprises a substrate coated in discrete zones with a mixture of a thermo-expander and two or more polymers with different melting ranges
DE102015005089A1 (en) * 2015-04-22 2016-10-27 Carl Freudenberg Kg Thermally fixable fabric

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FI925580A (en) 1993-06-21
DK0549392T3 (en) 1996-07-29
NO180101C (en) 1997-02-19
EP0549392A1 (en) 1993-06-30
JPH05295666A (en) 1993-11-09
FR2685171A1 (en) 1993-06-25
ATE137391T1 (en) 1996-05-15
FI925580A0 (en) 1992-12-08
NO924833D0 (en) 1992-12-14
DE69210375T2 (en) 1996-10-31
NO180101B (en) 1996-11-11
NO924833L (en) 1993-06-21
CA2085553A1 (en) 1993-06-21
DE69210375D1 (en) 1996-06-05
GR3020236T3 (en) 1996-09-30
FR2685171B1 (en) 1994-03-11
ES2088117T3 (en) 1996-08-01

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