EP0777006B1 - Layered product comprising a warp- or weft knitted terry fabric glued to a support web and method for its manufacture - Google Patents

Layered product comprising a warp- or weft knitted terry fabric glued to a support web and method for its manufacture Download PDF

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Publication number
EP0777006B1
EP0777006B1 EP96402572A EP96402572A EP0777006B1 EP 0777006 B1 EP0777006 B1 EP 0777006B1 EP 96402572 A EP96402572 A EP 96402572A EP 96402572 A EP96402572 A EP 96402572A EP 0777006 B1 EP0777006 B1 EP 0777006B1
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EP
European Patent Office
Prior art keywords
warp
loop
feet
weft
loops
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP96402572A
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German (de)
French (fr)
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EP0777006B2 (en
EP0777006A1 (en
Inventor
Jean-Philippe Billarant
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.)
Aplix SA
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Aplix SA
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Application filed by Aplix SA filed Critical Aplix SA
Priority to DE69619771T priority Critical patent/DE69619771T3/en
Priority to EP01201567A priority patent/EP1148163B2/en
Publication of EP0777006A1 publication Critical patent/EP0777006A1/en
Publication of EP0777006B1 publication Critical patent/EP0777006B1/en
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Publication of EP0777006B2 publication Critical patent/EP0777006B2/en
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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B21/02—Pile fabrics or articles having similar surface features
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B18/00—Fasteners of the touch-and-close type; Making such fasteners
    • A44B18/0023—Woven or knitted fasteners
    • A44B18/0034—Female or loop elements
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2403/00—Details of fabric structure established in the fabric forming process
    • D10B2403/01—Surface features
    • D10B2403/011—Dissimilar front and back faces
    • D10B2403/0112—One smooth surface, e.g. laminated or coated
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2501/00—Wearing apparel
    • D10B2501/06—Details of garments
    • D10B2501/063—Fasteners
    • D10B2501/0632—Fasteners of the touch-and-close type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/23907—Pile or nap type surface or component
    • Y10T428/23914—Interlaminar
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/23907—Pile or nap type surface or component
    • Y10T428/23957—Particular shape or structure of pile
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24008—Structurally defined web or sheet [e.g., overall dimension, etc.] including fastener for attaching to external surface
    • Y10T428/24017—Hook or barb

Definitions

  • the present invention relates to a set laminate which consists, on the one hand, of a knitted fabric warp or weft, which has knitted loose loops and, on the other hand, by a support, for example flexible, of reinforcement on which this knitted fabric is glued.
  • the invention applies in particular to such a set which is used for making the part female of a so-called hook-and-loop closure, the loops are intended to cooperate, in a separable connection attachment, with complementary male elements, by example of hooks, filiform elements with bulging heads or the like, etc.
  • complementary male elements by example of hooks, filiform elements with bulging heads or the like, etc.
  • Such female parts are known for example by document FR-A-2.632.830.
  • This support can be a support intermediate, the laminate assembly then being fixed on a article, or it can be the article itself.
  • the invention aims to remedy this disadvantage and, to this end, according to a first aspect, it is a laminated assembly according to claim 1.
  • each loop has at least one strand which, at a distance of its associated foot, comes to rest on at least one other warp and / or weft thread so that in this overlap area, the loop does not adhere to the support, which retains its capacity or properties Velcro.
  • the loops are oblique to the general direction of yarn of warp and / or weft.
  • the feet of the same loop can be located on the same chain thread, or on the contrary on different warp threads, for example adjacent.
  • the feet of the same loop are on weft threads which are adjacent or not.
  • the invention relates to a process for the manufacture of the above laminate assembly, which is characterized in that it consists, as specified in claim 8: knitting said fabric so that its loops have said size relative to the pitch warp and / or weft yarns and relative to the foot of another loop; to apply a adhesive on said support; and bringing into contact said fabric and said support for their joining by bonding.
  • the knitted fabric 1 is of the warp knitting type or weft knitting, and it comprises, on the one hand, chain 2 (also called mesh columns) parallels interlaced with 3 weft threads (also called rows of meshes), also parallel, and, on the other hand, free knitted loops 4 each of which two feet 5, located at the intersection of two sons of warp and weft, cooperates with the warp threads and weft.
  • the two strands 6 of each loop 4 start from 5 feet and meet at a distance from them to form the top 7 of the loop.
  • the sons of chain 2 and weft 3 form a very light knitted structure, very open, mechanically very fragile and dimensionally unstable, as shown above.
  • the loops 4 have a such size, compared to the pitch of the chain threads 2 and / or weft threads 3, that, considering the loops at flat against the warp 2 and weft 3 threads, at least one of the two strands 6 of each loop intersects or overlaps at least one warp and / or weft thread, to distance from foot 5 associated with this strand.
  • the loops 4 are directed obliquely to the general direction of the sons of chain and the sons of weft, and the two feet 5 of the same loop 4 are located, on the one hand, on the same warp thread 2 and, on the other hand, on two adjacent weft threads 3.
  • one of the strands 6, from the associated foot 5 goes to one of strands 6 of the next loop 4, then to the warp thread 2 adjacent to the one carrying the feet 5 of its loop, and it joins the top 7 which overlaps the laterally adjacent loops 4, at very short distance from the common foot 5 of these; the other strand 6, from vertex 7, overlaps the same chain thread 2 as the first strand 6 of this same loop, it goes under one of the strands 6 of the previous loop 4, and it joins the second foot 5.
  • a loop 4 overlaps the same wire twice chain 2 by its strands 6, and its apex 7 straddles the two laterally adjacent loops in close proximity of their common foot 5.
  • the loops 4 move away from the plane formed by the wires of warp 2 and the weft threads 3 from their feet 5.
  • Fabric 1 which has a low dimensional stability and low strength mechanical, is intended to be laminated on a support 8 of reinforcement, of any suitable nature, for example in plastic.
  • This support can be flexible, rigid or semi-rigid and, as stated earlier, it can either be a intermediate support intended to be fixed later on an article, that is, the article itself.
  • an adhesive film 9 intended to cooperate essentially with the warp 2 threads, the weft 3 and the part of the feet 5 of the loops which is located on the side of the underside or back of the fabric 1.
  • the fabric 1 When laminating, which is generally carried out under mechanical pressure as indicated below, the fabric 1 is as a whole pressed against the support 8, with interposition of the adhesive 9, and, during this operation, the warp threads, the weft threads and the underside of the feet 5 cooperate closely with the adhesive 9, while the strands 6 of the loops are only partially glued on support 8 and that, anyway, the vertices 7 of curls are preserved from sticking because they are each protected by a 5 foot.
  • the loops 4 can have, at their feet 5 and on the side of the support 8, small counter-loops 14 intended to cooperate with the adhesive 9 to increase the contact surface between the fabric 1 and the support 8. This also reinforces the fixing of the loop feet 5 on the wires 2, 3 and support 8 and, therefore, also the loop structure.
  • loops 4 are partially and locally bonded to the support 8, their vertices 7 remain free and, in operation, they can cooperate freely with complementary male elements hooking, which keeps the loops 4 all their Velcro properties.
  • the loops 4 are pulled by the male elements hooking, which causes, by peeling effect, the separation of the strands 6, locally bonded to the support 8, from this one.
  • FIG. 3 Schematically shown in FIG. 3 a example of a device enabling the laminating, to obtain the above laminated assembly, in the final phase of the process according to the invention, after fabric 1 has been knitted.
  • This example of a device can be used in the case of a support 8 which is flexible and which is a strip or intermediate sheet, the laminate assembly then being attached to an article by any appropriate means.
  • This device comprises two rollers driven by pressure 10 and 11 which assemble the fabric 1 and the flexible support 8.
  • the fabric 1 is brought first to pass on the roller 10, which then receives, over the fabric 1, the support 8. Upstream of the roller 10, the support 8 passes under a device 12 for applying or depositing the adhesive 9 on the face of the support 8 which faces the fabric 1.
  • the loops 4 are located on the face of the fabric 1 which is distant from the support 8, that is to say opposite to this one.
  • the fabric 1 and the support 8, superimposed on the roller 10 then pass jointly in the area of pinching between the two rollers to obtain bonding, and the laminate assembly 13 is extracted by any means suitable, for example by rollers.
  • this face adhesive 15 can be coated with a permanent adhesive and, to allow the laminate assembly to be rolled up on itself on a reel before this bonding, or else this adhesive receives a temporary protective film, or loops 4 undergo, for example by coating, an anti-adhesion treatment.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Of Fabric (AREA)
  • Slide Fasteners, Snap Fasteners, And Hook Fasteners (AREA)
  • Laminated Bodies (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)

Description

La présente invention est relative à un ensemble stratifié qui est constitué, d'une part, par un tissu tricoté chaíne ou trame, qui comporte des boucles libres tricotées et, d'autre part, par un support, par exemple souple, de renforcement sur lequel ce tissu tricoté est collé.The present invention relates to a set laminate which consists, on the one hand, of a knitted fabric warp or weft, which has knitted loose loops and, on the other hand, by a support, for example flexible, of reinforcement on which this knitted fabric is glued.

L'invention s'applique en particulier à un tel ensemble qui est utilisé pour la confection de la partie femelle d'une fermeture dite auto-agrippante, dont les boucles sont destinées à coopérer, dans une liaison séparable d'accrochage, avec des éléments mâles complémentaires, par exemple des crochets, des éléments filiformes à tête renflée ou analogues, etc. De telles parties femelles sont connues par exemple par le document FR-A-2.632.830.The invention applies in particular to such a set which is used for making the part female of a so-called hook-and-loop closure, the loops are intended to cooperate, in a separable connection attachment, with complementary male elements, by example of hooks, filiform elements with bulging heads or the like, etc. Such female parts are known for example by document FR-A-2.632.830.

Pour des raisons de prix de revient, on est amené à fabriquer un tissu tricoté dont le fond ou base est léger et très ouvert, et donc d'une structure mécaniquement fragile et dimensionnellement instable, sans pour autant sacrifier la qualité des boucles qui constituent l'élément actif primordial de la partie femelle de la fermeture auto-agrippante. Cette fragilité et cette instabilité du fond du tissu induisent des difficultés de mise en oeuvre, c'est-à-dire d'utilisation, de ce tissu en raison des sollicitations d'arrachement relativement importantes auxquelles le fond est soumis et qui proviennent de l'action des éléments mâles d'accrochage sur les boucles.For cost reasons, we are led to make a knitted fabric with a light bottom or base and very open, and therefore of a mechanically fragile structure and dimensionally unstable, without sacrificing the quality of the loops which constitute the active element essential of the female part of the hook-and-loop closure. This fragility and instability at the bottom of the fabric induce processing difficulties, that is to say of use, of this fabric due to the stresses relatively large pullout at which the bottom is subject and which come from the action of the male elements hooking on the loops.

On est donc conduit à renforcer le tissu en le contrecollant par son fond sur un support plus résistant, par exemple souple. Ce support peut être un support intermédiaire, l'ensemble stratifié étant ensuite fixé sur un article, ou bien il peut être l'article lui-même. We are therefore led to strengthen the fabric by laminating by its bottom on a more resistant support, by flexible example. This support can be a support intermediate, the laminate assembly then being fixed on a article, or it can be the article itself.

Toutefois, on rencontre des difficultés, lors de la fabrication d'un tel ensemble stratifié, car les boucles ont tendance à se coller également sur le support à travers le fond, conjointement avec les fils de chaínette (également dénommés colonnes de mailles), les fils de trame (également dénommés rangées de mailles) et les pieds des boucles, ce qui détruit leur pouvoir auto-agrippant du fait que leur sommet est fermement plaqué contre le support et ne peut donc pas coopérer, dans la liaison d'accrochage voulue, avec les éléments mâles.However, difficulties are encountered during the manufacture of such a laminate assembly, because the loops have tendency to also stick to the support through the bottom, together with the chain threads (also called mesh columns), weft threads (also called rows of stitches) and the feet of the loops, which destroys their hook-and-loop power because their top is firmly pressed against the support and therefore cannot cooperate, in the desired attachment link, with the male elements.

On connaít des ensembles de ce genre par exemple de US-A-4 624 116. Ce document décrit un ensemble stratifié selon le préambule de la revendication 1.We know sets of this kind for example of US-A-4,624,116. This document describes a laminate assembly according to the preamble of claim 1.

L'invention a pour but de remédier à cet inconvénient et, à cet effet, suivant un premier aspect, elle vise un ensemble stratifié suivant la revendication 1.The invention aims to remedy this disadvantage and, to this end, according to a first aspect, it is a laminated assembly according to claim 1.

Ainsi, dans l'ensemble stratifié selon l'invention, chaque boucle présente au moins un brin qui, à distance de son pied associé, vient s'appuyer sur au moins un autre fil de chaínette et/ou de trame de sorte que, dans cette zone de chevauchement, la boucle n'adhère pas au support, ce qui lui conserve sa capacité ou ses propriétés auto-agrippantes.Thus, in the laminate assembly according to the invention, each loop has at least one strand which, at a distance of its associated foot, comes to rest on at least one other warp and / or weft thread so that in this overlap area, the loop does not adhere to the support, which retains its capacity or properties Velcro.

Il en est de même pour les deux brins de chaque boucle et, encore, pour le sommet de chaque boucle qui est situé au voisinage du pied commun de deux autres boucles, en chevauchant ainsi ce dernier et les deux brins de boucles partant de celui-ci.The same is true for both strands of each loop and again for the top of each loop which is located near the foot common of two other loops, thus overlapping this last and the two strands of loops starting from it.

Suivant une caractéristique avantageuse, les boucles sont obliques par rapport à la direction générale des fils de chaínette et/ou de trame.According to an advantageous characteristic, the loops are oblique to the general direction of yarn of warp and / or weft.

Par exemple, les pieds d'une même boucle peuvent être situés sur un même fil de chaínette, ou au contraire sur des fils de chaínette différents, par exemple adjacents.For example, the feet of the same loop can be located on the same chain thread, or on the contrary on different warp threads, for example adjacent.

Par exemple encore, les pieds d'une même boucle sont sur des fils de trame qui sont adjacents ou non.For example again, the feet of the same loop are on weft threads which are adjacent or not.

Suivant un second aspect, l'invention vise un procédé pour la fabrication de l'ensemble stratifié ci-dessus, qui est caractérisé en ce qu'il consiste, comme spécifié dans la revendication 8 : à tricoter ledit tissu pour que ses boucles aient ladite taille par rapport au pas des fils de chaínette et/ou de trame et par rapport au pied d'une autre boucle ; à appliquer un adhésif sur ledit support ; et à amener en contact ledit tissu et ledit support en vue de leur solidarisation par collage.According to a second aspect, the invention relates to a process for the manufacture of the above laminate assembly, which is characterized in that it consists, as specified in claim 8: knitting said fabric so that its loops have said size relative to the pitch warp and / or weft yarns and relative to the foot of another loop; to apply a adhesive on said support; and bringing into contact said fabric and said support for their joining by bonding.

On comprendra bien l'invention à la lecture du complément de description qui va suivre et en référence au dessin annexé qui fait partie de la description et dans lequel :

  • Fig. 1 est une vue schématique en plan montrant un mode de tricotage préféré pour la confection du tissu de l'ensemble selon l'invention ;
  • Fig. 2 est une coupe transversale schématique éclatée de l'ensemble selon l'invention comportant le tissu de la Fig. 1 ; et
  • Fig. 3 montre schématiquement un exemple de dispositif pour la réalisation du contrecollage, dans la phase finale du procédé selon l'invention.
    • The invention will be clearly understood on reading the additional description which follows and with reference to the attached drawing which forms part of the description and in which:
  • Fig. 1 is a schematic plan view showing a preferred knitting mode for making the fabric of the assembly according to the invention;
  • Fig. 2 is an exploded schematic cross section of the assembly according to the invention comprising the fabric of FIG. 1; and
  • Fig. 3 schematically shows an example of a device for carrying out laminating, in the final phase of the method according to the invention.

    • On a schématiquement représenté en plan sur la Fig. 1 un tissu tricoté 1 à boucles, constituant l'un des deux éléments de l'ensemble stratifié selon un mode de réalisation préféré de l'invention.Schematically shown in plan in FIG. 1 knitted fabric 1 with loops, constituting one of the two elements of the laminate assembly according to one embodiment preferred of the invention.

    Le tissu tricoté 1 est du type tricotage chaíne ou tricotage trame, et il comporte, d'une part, des fils de chaínette 2 (également dénommés colonnes de mailles) parallèles entrelacés avec des fils de trame 3 (également dénommés rangées de mailles), également parallèles, et, d'autre part, des boucles libres tricotées 4 dont chacun des deux pieds 5, situé à l'intersection de deux fils de chaínette et de trame, coopère avec les fils de chaínette et de trame. Les deux brins 6 de chaque boucle 4 partent des pieds 5 et se rejoignent, à distance de ceux-ci, pour former le sommet 7 de la boucle. Les fils de chaínette 2 et de trame 3 forment une structure tricotée très légère, très ouverte, mécaniquement très fragile et dimensionnellement instable, comme indiqué ci-dessus.The knitted fabric 1 is of the warp knitting type or weft knitting, and it comprises, on the one hand, chain 2 (also called mesh columns) parallels interlaced with 3 weft threads (also called rows of meshes), also parallel, and, on the other hand, free knitted loops 4 each of which two feet 5, located at the intersection of two sons of warp and weft, cooperates with the warp threads and weft. The two strands 6 of each loop 4 start from 5 feet and meet at a distance from them to form the top 7 of the loop. The sons of chain 2 and weft 3 form a very light knitted structure, very open, mechanically very fragile and dimensionally unstable, as shown above.

    Conformément à l'invention, les boucles 4 ont une taille telle, par rapport au pas des fils de chaínette 2 et/ou des fils de trame 3, que, en considérant les boucles à plat contre les fils de chaínette 2 et de trame 3, au moins l'un des deux brins 6 de chaque boucle intersecte ou chevauche au moins un fil de chaínette et/ou de trame, à distance du pied 5 associé à ce brin.According to the invention, the loops 4 have a such size, compared to the pitch of the chain threads 2 and / or weft threads 3, that, considering the loops at flat against the warp 2 and weft 3 threads, at least one of the two strands 6 of each loop intersects or overlaps at least one warp and / or weft thread, to distance from foot 5 associated with this strand.

    Dans le mode de réalisation représenté sur la Fig. 1, les boucles 4 sont dirigées obliquement par rapport à la direction générale des fils de chaínette et des fils de trame, et les deux pieds 5 d'une même boucle 4 sont situés, d'une part, sur un même fil de chaínette 2 et, d'autre part, sur deux fils de trame adjacents 3. Toutefois, on pourrait adopter des agencements différents quant à l'orientation des boucles 4 et/ou à l'implantation des pieds 5 ; par exemple, les pieds d'une même boucle 4 pourraient être situés sur des fils de chaínette différents, par exemple adjacents, et sur des fils de trame 3 non adjacents.In the embodiment shown in FIG. 1, the loops 4 are directed obliquely to the general direction of the sons of chain and the sons of weft, and the two feet 5 of the same loop 4 are located, on the one hand, on the same warp thread 2 and, on the other hand, on two adjacent weft threads 3. However, we could adopt different arrangements as to the orientation of loops 4 and / or the implantation of feet 5; for example, the feet of the same loop 4 could be located on different warp threads, for example adjacent, and on weft yarns 3 not adjacent.

    Dans le mode de réalisation préféré représenté sur la Fig. 1, l'un des brins 6, à partir du pied associé 5, passe sur l'un des brins 6 de la boucle suivante 4, puis sur le fil de chaínette 2 adjacent à celui qui porte les pieds 5 de sa boucle, et il rejoint le sommet 7 qui chevauche les boucles latéralement adjacentes 4, à très faible distance du pied commun 5 de celles-ci ; l'autre brin 6, à partir du sommet 7, vient chevaucher le même fil de chaínette 2 que le premier brin 6 de cette même boucle, il passe sous l'un des brins 6 de la boucle précédente 4, et il rejoint le second pied 5. Ainsi, une boucle 4 chevauche deux fois le même fil de chaínette 2 par ses brins 6, et son sommet 7 chevauche les deux boucles latéralement adjacentes, à proximité immédiate de leur pied commun 5. Au surplus, comme montré sur la Fig. 2, les boucles 4 s'éloignent du plan formé par les fils de chaínette 2 et les fils de trame 3 dès leurs pieds 5.In the preferred embodiment shown in Fig. 1, one of the strands 6, from the associated foot 5, goes to one of strands 6 of the next loop 4, then to the warp thread 2 adjacent to the one carrying the feet 5 of its loop, and it joins the top 7 which overlaps the laterally adjacent loops 4, at very short distance from the common foot 5 of these; the other strand 6, from vertex 7, overlaps the same chain thread 2 as the first strand 6 of this same loop, it goes under one of the strands 6 of the previous loop 4, and it joins the second foot 5. Thus, a loop 4 overlaps the same wire twice chain 2 by its strands 6, and its apex 7 straddles the two laterally adjacent loops in close proximity of their common foot 5. In addition, as shown in FIG. 2, the loops 4 move away from the plane formed by the wires of warp 2 and the weft threads 3 from their feet 5.

    On a schématiquement représenté sur la Fig. 2, en coupe transversale et de manière éclatée, un ensemble stratifié selon l'invention. Le tissu 1, qui présente une faible stabilité dimensionnelle et une faible résistance mécanique, est destiné à être contrecollé sur un support 8 de renfort, de toute nature appropriée, par exemple en matière plastique. Ce support peut être souple, rigide ou semi-rigide et, comme indiqué précédemment, il peut être soit un support intermédiaire destiné à être fixé ultérieurement sur un article, soit cet article lui-même. Pour le contrecollage, par exemple, on dépose sur l'une des faces du support 8 une pellicule d'adhésif 9 destinée à coopérer essentiellement avec les fils de chaínette 2, les fils de trame 3 et la partie des pieds 5 des boucles qui est située du côté de la face inférieure ou arrière du tissu 1. Schematically shown in FIG. 2, in cross section and exploded, a set laminate according to the invention. Fabric 1, which has a low dimensional stability and low strength mechanical, is intended to be laminated on a support 8 of reinforcement, of any suitable nature, for example in plastic. This support can be flexible, rigid or semi-rigid and, as stated earlier, it can either be a intermediate support intended to be fixed later on an article, that is, the article itself. For the laminating, for example, we deposit on one side of the support 8 an adhesive film 9 intended to cooperate essentially with the warp 2 threads, the weft 3 and the part of the feet 5 of the loops which is located on the side of the underside or back of the fabric 1.

    Lors du contrecollage, qui s'effectue généralement sous pression mécanique comme indiqué ci-après, le tissu 1 est dans son ensemble plaqué contre le support 8, avec interposition de l'adhésif 9, et, lors de cette opération, les fils de chaínette, les fils de trame et le dessous des pieds 5 coopèrent étroitement avec l'adhésif 9, tandis que les brins 6 des boucles ne sont que partiellement collés sur le support 8 et que, de toute façon, les sommets 7 des boucles sont préservés d'un collage du fait qu'ils sont chacun protégés par un pied 5. Pour favoriser le collage, les boucles 4 peuvent présenter, au niveau de leurs pieds 5 et du côté du support 8, des petites contre-boucles 14 destinées à coopérer avec l'adhésif 9 pour augmenter la surface de contact entre le tissu 1 et le support 8. Cela renforce également la fixation des pieds de boucle 5 sur les fils 2, 3 et le support 8 et, par conséquent, aussi la structure des boucles.When laminating, which is generally carried out under mechanical pressure as indicated below, the fabric 1 is as a whole pressed against the support 8, with interposition of the adhesive 9, and, during this operation, the warp threads, the weft threads and the underside of the feet 5 cooperate closely with the adhesive 9, while the strands 6 of the loops are only partially glued on support 8 and that, anyway, the vertices 7 of curls are preserved from sticking because they are each protected by a 5 foot. To promote bonding, the loops 4 can have, at their feet 5 and on the side of the support 8, small counter-loops 14 intended to cooperate with the adhesive 9 to increase the contact surface between the fabric 1 and the support 8. This also reinforces the fixing of the loop feet 5 on the wires 2, 3 and support 8 and, therefore, also the loop structure.

    Ainsi, bien que les boucles 4 soient partiellement et localement collées sur le support 8, leurs sommets 7 restent dégagés et, en fonctionnement, ils peuvent coopérer librement avec les éléments mâles complémentaires d'accrochage, ce qui conserve aux boucles 4 toutes leurs propriétés auto-agrippantes. Au surplus, lors de la première séparation des deux éléments constituant la fermeture séparable, les boucles 4 sont tirées par les éléments mâles d'accrochage, ce qui provoque, par effet de pelage, la séparation des brins 6, localement collés au support 8, d'avec celui-ci.So although loops 4 are partially and locally bonded to the support 8, their vertices 7 remain free and, in operation, they can cooperate freely with complementary male elements hooking, which keeps the loops 4 all their Velcro properties. In addition, during the first separation of the two elements constituting the closure separable, the loops 4 are pulled by the male elements hooking, which causes, by peeling effect, the separation of the strands 6, locally bonded to the support 8, from this one.

    On a schématiquement représenté sur la Fig. 3 un exemple de dispositif permettant de réaliser le contrecollage, pour l'obtention de l'ensemble stratifié ci-dessus, dans la phase finale du procédé selon l'invention, après que le tissu 1 a été tricoté.Schematically shown in FIG. 3 a example of a device enabling the laminating, to obtain the above laminated assembly, in the final phase of the process according to the invention, after fabric 1 has been knitted.

    Cet exemple de dispositif est utilisable dans le cas d'un support 8 qui est souple et qui est une bande ou feuille intermédiaire, l'ensemble stratifié étant ensuite fixé sur un article par tout moyen approprié.This example of a device can be used in the case of a support 8 which is flexible and which is a strip or intermediate sheet, the laminate assembly then being attached to an article by any appropriate means.

    Ce dispositif comporte deux rouleaux entraínés de pression 10 et 11 qui réalisent l'assemblage du tissu 1 et du support souple 8. Le tissu 1 est amené le premier à passer sur le rouleau 10, qui reçoit ensuite, par-dessus le tissu 1, le support 8. En amont du rouleau 10, le support 8 passe sous un dispositif 12 d'application ou de dépose de l'adhésif 9 sur la face du support 8 qui est tournée vers le tissu 1. Bien entendu, les boucles 4 sont situées sur la face du tissu 1 qui est éloignée du support 8, c'est-à-dire opposée à celui-ci. Le tissu 1 et le support 8, superposés sur le rouleau 10, passent ensuite conjointement dans la zone de pinçage entre les deux rouleaux pour l'obtention du collage, et l'ensemble stratifié 13 est extrait par tout moyen approprié, par exemple par des rouleaux d'appel.This device comprises two rollers driven by pressure 10 and 11 which assemble the fabric 1 and the flexible support 8. The fabric 1 is brought first to pass on the roller 10, which then receives, over the fabric 1, the support 8. Upstream of the roller 10, the support 8 passes under a device 12 for applying or depositing the adhesive 9 on the face of the support 8 which faces the fabric 1. Of course, the loops 4 are located on the face of the fabric 1 which is distant from the support 8, that is to say opposite to this one. The fabric 1 and the support 8, superimposed on the roller 10, then pass jointly in the area of pinching between the two rollers to obtain bonding, and the laminate assembly 13 is extracted by any means suitable, for example by rollers.

    Si l'ensemble stratifié selon l'invention est destiné à être collé sur un autre support par la face 15 du support 8 opposée à celle qui reçoit le tissu 1, cette face de collage 15 peut être revêtue d'un adhésif permanent et, pour permettre d'enrouler l'ensemble stratifié sur lui-même en bobine avant ce collage, ou bien cet adhésif reçoit une pellicule provisoire de protection, ou bien les boucles 4 subissent, par exemple par enduction, un traitement d'anti-adhérence.If the laminate assembly according to the invention is intended to be glued to another support by the face 15 of the support 8 opposite to that which receives the fabric 1, this face adhesive 15 can be coated with a permanent adhesive and, to allow the laminate assembly to be rolled up on itself on a reel before this bonding, or else this adhesive receives a temporary protective film, or loops 4 undergo, for example by coating, an anti-adhesion treatment.

    Claims (8)

    1. A laminated assembly comprising a warp or weft knitted fabric (1) with loops (4), and a support (8) wherein the weft or warp knitted loop fabric comprises a light, very open, mechanically fragile and dimensionally unstable interlacing of warp threads, or wales (2), and weft threads, or courses (3) and knitted free loops of which the feet (5) cooperate with warp and weft threads, while the rest of each loop, formed by two strands (6) originating from the feet and an apex (7) connecting the two strands is free, characterised in that at least one of the two strands bears on at least one warp thread (2) and/or weft thread (3), at a distance from the foot (5) associated with said strand (6), each loop being of such a dimension relative to the pitch of the warp or weft threads (2) as to be able to straddle the foot (5) of another loop and the interlacing is stuck on the support (8) by an adhesive.
    2. An assembly according to claim 1, characterised in that in plan view the loops (4) are oblique with respect to the general direction of the warp and weft threads.
    3. An assembly according to claims 1 or 2, characterised in that the feet (5) of one and the same loop (4) are on one and the same warp thread (2).
    4. An assembly according to claim 1 or 2, characterised in that the feet (5) of one and the same loop (4) are on different warp threads (2), for example adjacent warp threads.
    5. An assembly according to any one of claims 1 to 4, characterised in that the feet (5) of one and the same loop (4) are on adjacent weft threads (3).
    6. An assembly according to any one of claims 1 to 4, characterised in that the feet (5) of one and the same loop (4) are on non-adjacent weft threads (3).
    7. An assembly according to any one of claims 1 to 5, characterised in that the feet (5) of one and the same loop (4) are on non-adjacent weft threads (3).
    8. A method of producing the laminated assembly according to any one of claims 1 to 7, characterised in that it consists in knitting the said fabric (1) so that its loops (4) have the said dimension with respect to the pitch of the warp threads (2) and/or weft threads (3) and with respect to the foot of another loop (4); applying an adhesive (9) to the said support (8); and bringing the said fabric and the said support (8) into contact in order to connect them by sticking.
    EP96402572A 1995-11-29 1996-11-28 Layered product comprising a warp- or weft knitted terry fabric glued to a support web and method for its manufacture Expired - Lifetime EP0777006B2 (en)

    Priority Applications (2)

    Application Number Priority Date Filing Date Title
    DE69619771T DE69619771T3 (en) 1995-11-29 1996-11-28 Multi-layer material made of a chain or weft loop knitted fabric bonded to a support and method for its production
    EP01201567A EP1148163B2 (en) 1995-11-29 1996-11-28 Layered product presenting terry loops with overlapping strands

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    FR9514140 1995-11-29
    FR9514140A FR2741636B1 (en) 1995-11-29 1995-11-29 LAMINATE ASSEMBLY CONSISTING OF A KNITTED FABRIC CHAIN OR WEFT WITH LOOPS BACKED ON A SUPPORT, AND ITS MANUFACTURING METHOD

    Related Child Applications (2)

    Application Number Title Priority Date Filing Date
    EP01201567A Division EP1148163B2 (en) 1995-11-29 1996-11-28 Layered product presenting terry loops with overlapping strands
    EP01201567.3 Division-Into 2001-05-01

    Publications (3)

    Publication Number Publication Date
    EP0777006A1 EP0777006A1 (en) 1997-06-04
    EP0777006B1 true EP0777006B1 (en) 2002-03-13
    EP0777006B2 EP0777006B2 (en) 2011-06-08

    Family

    ID=9484999

    Family Applications (2)

    Application Number Title Priority Date Filing Date
    EP01201567A Expired - Lifetime EP1148163B2 (en) 1995-11-29 1996-11-28 Layered product presenting terry loops with overlapping strands
    EP96402572A Expired - Lifetime EP0777006B2 (en) 1995-11-29 1996-11-28 Layered product comprising a warp- or weft knitted terry fabric glued to a support web and method for its manufacture

    Family Applications Before (1)

    Application Number Title Priority Date Filing Date
    EP01201567A Expired - Lifetime EP1148163B2 (en) 1995-11-29 1996-11-28 Layered product presenting terry loops with overlapping strands

    Country Status (6)

    Country Link
    US (1) US5736214A (en)
    EP (2) EP1148163B2 (en)
    JP (1) JPH09173111A (en)
    DE (2) DE69619771T3 (en)
    ES (2) ES2213667T5 (en)
    FR (1) FR2741636B1 (en)

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    US7670662B2 (en) 2005-02-12 2010-03-02 Nordenia Deutschland Gronau Gmbh Laminate material element for a hook and loop closure, particularly a diaper closure
    US8012297B2 (en) 2005-02-12 2011-09-06 Nordenia Deutschland Gronau Gmbh Laminate material element for a hook and loop closure, particularly a diaper closure
    EP2455522A1 (en) 2010-11-18 2012-05-23 Nordenia Technologies GmbH Compound material element for a hook-and-loop fastener
    DE102014119706A1 (en) 2014-12-30 2016-06-30 Mondi Gronau Gmbh Landing zone with hotmelt-glued velor
    EP3040460A1 (en) 2014-12-30 2016-07-06 Mondi Gronau GmbH Landing zone with hot melt adhesive velour

    Also Published As

    Publication number Publication date
    ES2171635T3 (en) 2002-09-16
    ES2213667T3 (en) 2004-09-01
    DE69619771D1 (en) 2002-04-18
    EP1148163B2 (en) 2011-08-03
    EP1148163A2 (en) 2001-10-24
    EP1148163A3 (en) 2002-04-03
    JPH09173111A (en) 1997-07-08
    DE69631705D1 (en) 2004-04-01
    EP0777006B2 (en) 2011-06-08
    ES2171635T5 (en) 2011-08-19
    DE69631705T3 (en) 2012-01-26
    EP1148163B1 (en) 2004-02-25
    EP0777006A1 (en) 1997-06-04
    FR2741636A1 (en) 1997-05-30
    DE69619771T2 (en) 2002-11-21
    DE69619771T3 (en) 2012-02-09
    ES2213667T5 (en) 2011-10-31
    DE69631705T2 (en) 2004-10-07
    US5736214A (en) 1998-04-07
    FR2741636B1 (en) 1998-02-06

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