EP4378344A1 - Matériau de bande de crochet, rouleau de matériau de bande de crochet et bobine - Google Patents

Matériau de bande de crochet, rouleau de matériau de bande de crochet et bobine Download PDF

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Publication number
EP4378344A1
EP4378344A1 EP23213444.5A EP23213444A EP4378344A1 EP 4378344 A1 EP4378344 A1 EP 4378344A1 EP 23213444 A EP23213444 A EP 23213444A EP 4378344 A1 EP4378344 A1 EP 4378344A1
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EP
European Patent Office
Prior art keywords
tape material
film carrier
hook tape
projection elements
valleys
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP23213444.5A
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German (de)
English (en)
Inventor
Magdalena Drozdziok-Weinhardt
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.)
Lohmann Koester GmbH and Co KG
Original Assignee
Lohmann Koester GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lohmann Koester GmbH and Co KG filed Critical Lohmann Koester GmbH and Co KG
Publication of EP4378344A1 publication Critical patent/EP4378344A1/fr
Pending legal-status Critical Current

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Classifications

    • 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
    • A44B18/0069—Details
    • A44B18/0084—Double-sided
    • 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
    • A44B18/0046—Fasteners made integrally of plastics
    • A44B18/0061—Male or hook elements
    • A44B18/0065—Male or hook elements of a mushroom type
    • 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
    • A44B18/0069—Details
    • A44B18/008—Hooks or loops provided with means to reinforce the attachment, e.g. by adhesive means

Definitions

  • the invention relates to a hook tape material.
  • the invention also relates to a hook tape material roll and a hook tape material reel.
  • Hook tape material of the generic type serves as a semi-finished product for the manufacture of a component of mechanical fastening systems, in which the hooks of the corresponding component can engage in a second component of the mechanical fastening system, which for example provides loops to match this, in order to close a corresponding fastening in this way.
  • a desired length of the hook tape material, over which the fastening is to work, is cut and applied in the desired manner in order to then form part of a fastening system.
  • the hooks can be arranged on a front side and the loop material on a back side of a fastening tape for corresponding fastening systems, so that a self-closing fastening element can be provided, which can be used for example to wrap around and fasten cables, skis or as a sports bandage or medical bandage, such as the one used for example in the WO 2005/000065 A1
  • a hook tape material serves as a semi-finished product or intermediate product for the respective provision of the fastening system by combining it with a corresponding loop material.
  • the projection elements arranged on the front side of a corresponding film carrier of the hook tape material which themselves can be formed into hooks in a variety of ways, be provided with their own structured surface in order to optimize the hooking properties.
  • the EP 0 989 810 B1 and the EP 1 696 760 B1 disclose corresponding projection elements which are provided on the front side of a film carrier, which in turn have a structured surface on their front side and which are intended to enable improved hooking properties.
  • the corresponding hook tape material is made of a hardened plastic and has, for example, EN 10 2020 007 585 A1 , the EP 1 635 667 B1 or the EP 1 696 760 B1 disclose a flexible film carrier comprising a front surface and a back surface, the front surface of the film carrier having spaced and separated projection elements arranged thereon and the back surface of the film carrier having a textured surface.
  • Such hook tape material can be further processed, for example, to make fastener tapes.
  • the hook tape material In order for the hook tape material to be further processed or to be delivered to customers as a semi-finished product for such further processing, it must be made available in some form for transport.
  • the hook tape material can be wound onto a spool or roll and thus provided wound onto a spool or roll.
  • the hook tape material when the hook tape material is wound up, the back and front sides lie directly on top of each other if the hook tape material is provided in the form of spools or rolls. After a certain number of windings and at higher winding and unwinding speeds, the hook tape material may no longer be able to be held reliably on the roll or spool. This is particularly true if, as is currently the case on the market, the narrowest and lightest fastener tapes are to be provided, which then requires narrowest and lightest hook tape materials. These can only be wound up cleanly with little tension and tend to slip the individual layers, particularly at higher rotation speeds, which then leads or can lead to malfunctions.
  • side disks are known, for example, which can be used effectively in rolls to prevent telescoping or individual layers from slipping.
  • reusable hook tape materials can be provided on spools or rolls, which should be easier to stabilize because they are wider and which then have to be separated lengthwise into individual pieces during further processing, which is not possible or desired for every user of the semi-finished products.
  • Elaborate packaging for rolls or spools at risk is also used, which may be effective during transport and storage, but not during winding or unwinding.
  • the EP 3 072 484 B1 by increasing the stability of the rolls or spools through very complex winding structures and a complex construction of the hook tape materials.
  • the DE 694 27 164 T2 discloses a pressure-sensitive adhesive for attaching individual lengths of hook tape materials to the back of the hook tape materials, so that a roll of these hook tape materials can be stabilized by the pressure-sensitive adhesive.
  • the stabilizing effect of pressure-sensitive adhesives on the back of loop tape materials which, as already explained above, can serve as the second component of a mechanical fastening system, is known for example from DE 94 21 906 U1 , from the DE 694 03 644 T3 , from the DE 694 29 366 T2 and from the US$3,341,004 known.
  • the inventive basic idea is to adapt the back of the hook tape material in such a way that it has a stabilizing effect in the wound-up state.
  • a hook tape material made of a hardened plastic with a flexible film carrier comprising a front side and a back side
  • objected separate projection elements are arranged on the front side of the film carrier and which is characterized in that static friction increasing means are arranged on the back side of the film carrier.
  • Such static friction increasing agents can, as your description already shows, increase the static friction between the layers of hook tape material when it is wound, rolled up or spooled, so that a corresponding roll or spool can be stabilized accordingly. With a suitable design, this then enables higher winding or unwinding speeds or even larger roll or spool diameters, whereby the risk of telescoping or unwanted lifting of the individual layers due to high rotation speeds, which can lead to tangling or other failures, can be kept to a minimum.
  • the means for increasing the static friction can be provided by the back of the film carrier having a structured surface that increases the static friction. It goes without saying, however, that other measures, such as a targeted increase in electrostatic forces or similar, can also be used as means for increasing the static friction.
  • a hook tape material made of a hardened plastic with a flexible film carrier comprising a front side and a back side, in which spaced-apart, separate projection elements are arranged on the front side of the film carrier
  • the back side of the film carrier has a structured surface and the surface of the back side of the film carrier, on the one hand, and the projection elements and/or a structured surface of the projection elements, on the other hand, form a positive connection parallel to the film carrier in order to To be able to provide hook tape material made of a hardened plastic in a wound up state in a reliable manner.
  • the form fit can increase the stability of a roll or spool made of such hook material, particularly against lateral forces, which can be caused by the tensions or pressures occurring in the spool itself, for example.
  • the stability of such rolls or spools can also be increased when they are wound or unwound and the rotational movements of the centrifugal forces act on the wound or rolled up hook tape material. This also means that the corresponding rolls or spools can be provided in a reliable manner.
  • a hook tape material made of a hardened plastic with a flexible film carrier comprising a front side and a back side, in which spaced-apart, separate projection elements are arranged on the front side of the film carrier, can also be characterized in that the back of the film carrier has a periodically structured surface, wherein the projection elements have a periodically structured surface and the periodicity of the surface of the back of the film carrier is coordinated with the periodicity of the surfaces of the projection elements and/or wherein the projection elements form periodically arranged projections, the surface of the back side forms recesses, the periodicity of the projections and the periodicity of the recesses are coordinated with one another and the recesses in the surface are formed further than the projections, in order to be able to reliably provide a hook tape material made of a hardened plastic in a wound state.
  • Such a design makes it possible for either the projection elements themselves or their periodically structured surface to engage with the periodically structured surface of the back of the film carrier due to the coordination, whereby the stability between the individual layers of a roll or spool can be increased accordingly.
  • This design can also reduce the risk of telescoping.
  • a more stable winding in a wound state can be ensured even at higher winding or unwinding speeds and the risk of snagging can be minimized.
  • the hook tape material is provided as a semi-finished product for further processing in the form of a hook tape material roll or hook tape material spool. For reasons of efficiency, it is sensible to have as much hook tape material as possible on one roll or spool.
  • the term roll refers to a winding in which the respective strip material is wound layer upon layer without axial offset, i.e. without an offset parallel to the strip material surface in the transverse direction.
  • a winding creates an essentially disc-like roll of the corresponding strip material, the width of which in the axial direction essentially corresponds to the width of the strip material in the transverse direction, i.e. perpendicular to the machine direction.
  • Such rolls in particular are relatively difficult to wind with large amounts of material in view of the material tension found in the strip material, since the outer layers exert a contact pressure on the inner layers and, for the stability of a roll, a sufficiently high material tension must be found in each layer, especially in the outer layers.
  • the above-described means for increasing static friction, the form fit formed parallel to the film carrier between the back of the film carrier and the projection elements or the coordinated periodicity of the projection elements or the structured surface of the projection elements and the back of the film carrier lead to axial stabilization when the hook tape material is suitably designed and/or when the process is suitably controlled during winding or unwinding, which reduces the risk of telescoping on the one hand and the risk of axial displacement of layers that have not been immediately removed or just wound on the other.
  • tape sections that are wound up like rolls can also be provided axially next to one another on a spool, as is the case, for example, with EP3072484B1 discussed.
  • a coil it is not absolutely necessary that the respective band segments, which are wound in layers on top of one another, do not overlap. Overlaps can also be provided.
  • the respective layers in a coil are wound strictly crosswise to form a coil.
  • rolls or coils can be wound or provided with a core or without a core. In both cases, it is advantageous if the respective rolls or coils are as stable as possible, so that the stabilizing measures explained above can be used advantageously regardless of this.
  • Any known tape material which can be made from a cured plastic and has a flexible film carrier and spaced apart projection elements can be used as the hook tape material.
  • this semi-finished product can be molded from a plastic that is moldable and then hardens.
  • hardening can occur as a result of chemical reactions or physical reactions.
  • plastics that are made up of several chemical components that react with one another and can be molded into a flexible film carrier can be used.
  • thermoplastics are also suitable, as long as they are sufficiently stable when cooled but can be molded into a film carrier that is flexible.
  • any film-like configuration of the respective plastic which is flexible to the desired extent and can serve as a carrier for the spaced-apart, separate projection elements is suitable as a film carrier.
  • a film carrier can be a continuous sheet material representing a simple area, which preferably has no holes or perforations extending from one surface side to another surface side of the sheet material or the film carrier.
  • the hook tape material and in particular its flexible film carrier are preferably substantially longer in a machine direction than in a transverse direction thereto, so that this hook tape material can be fed to a processing machine as a semi-finished product with a relatively long length.
  • the film carrier is preferably relatively thin perpendicular to a plane spanned by the machine direction and the transverse direction, so that it is flexible in particular perpendicular to this plane.
  • the front and the back of the flexible film carrier are then preferably each parallel to the plane spanned by the machine direction and the transverse direction.
  • the spaced apart, separate projection elements are arranged on the front side of the film carrier.
  • the back side then forms the other of the two surfaces of the flexible film carrier arranged parallel to the plane spanned by the machine direction and the transverse direction.
  • the projection elements represent the hooks of the hook tape material, whereby these projection elements may already have sufficient hooking properties due to their design projecting from the flexible film carrier, in particular if they are desired to be essentially parallel to the machine direction or the transverse direction.
  • the projection elements can initially have any shape as long as they protrude or stand out from the flexible film carrier.
  • the projection elements can be formed in one piece with the film carrier, whereby, depending on the specific manufacturing method, residues of attachments that were made during forming, for example, can be found between the projection elements and the film carrier.
  • the projection elements can also be placed on the film carrier only after hardening or during subsequent re-softening.
  • the projection elements are preferably connected in one piece with the film carrier. It is particularly preferred if the projection elements are molded at the same time as the film carrier and from a common material.
  • the projection elements can have structures such as hooks, projections, thickenings, mushroom heads or the like in relation to their end pointing away from the film carrier.
  • the surface of the projection element pointing away from the film carrier can optionally have a structured surface.
  • the projection elements themselves carry protruding structures, such as plates, mushroom heads or hooks, which are subsequently attached to the projection elements and only then become part of the projection elements.
  • the term structured surface refers to any structure applied to the corresponding surface in a targeted manner, even if this is only characterized by a defined roughness or by statistical elevations and depressions or mountains and valleys.
  • this can be, for example, EN 10 2020 007 585 A1 or the EP 1 635 667 B1 reveal, be regular structures which are present in a mesoscopic size which corresponds approximately to the width of the projection elements parallel to the front side of the flexible film carrier or the distance between the projection elements.
  • any means by which the static friction between individual layers of the hook tape material can be increased when it is wound up by measures on the back of the film carrier can be used as a means of increasing the static friction.
  • These can even be adhesives or electrostatic charges, for example, which can increase the static friction between the layers.
  • the application of adhesives is in itself suitable for increasing the static friction in the case of corresponding semi-finished products. between the individual layers is not provided; at most, if the corresponding hook material is to be applied in an adhesive form elsewhere during processing, an adhesive could already be provided, whereby the problems explained above of layers lifting off from one another and telescoping or slipping may also occur in such cases, so that appropriate means of increasing static friction can be provided by a suitable variation of the adhesive that specifically takes these problems into account.
  • the static friction increasing means can act mechanically, which can be implemented, for example, by roughnesses that are adapted to the front or surface of the projection elements.
  • This is advantageous because the surface of the projection elements that faces away from the front of the flexible film carrier comes into contact with the back of the film carrier of a different layer in a winding. If this surface of the projection elements is very smooth, it can be advantageous if the back of the film carrier is provided with a very low level of roughness, so that increased static friction can be caused by van der Vaals forces or electrostatic forces.
  • the roughness of the back of the film carrier is adapted to the roughness of the corresponding surface of the projection elements, since experience has shown that greater differences in roughness can lead to a reduction in static friction.
  • the static friction increasing means can be provided in particular by a targeted structure on the back of the film carrier, for example by corresponding peaks and valleys.
  • the static friction means are formed in one piece in or with the film carrier. This can enable particularly simple production, since the static friction increasing means can then be provided during the forming or primary shaping of the hook tape material or in a subsequent step, for example by milling, heating or etching out.
  • the structured surface or a periodically structured surface as can be provided, for example, on the back of the film carrier or on the surface of the projection elements, which are also preferably can be formed integrally with the respective component, i.e. with the film carrier or with the projection element.
  • the back of the film carrier regardless of which form of static friction increasing means is used, may have a structured surface, but this does not necessarily have to be the case, especially if the emphasis is on increasing static friction by van der Vaals forces or by electrostatic forces.
  • the form fit formed parallel to the film carrier which ultimately minimizes the risk of the individual layers of a winding slipping, whether axially or in the direction of rotation, allows these layers to be stabilized against one another. It goes without saying that the form fit should preferably be easily releasable by lifting off the individual layers, so that the windings or layers can be unwound quickly and without too much interference with the layers still remaining on the spool or roll.
  • the positive locking can initially be achieved in any desired manner, in that the projection elements or a structured surface of the projection elements ultimately engage in some way in corresponding valleys of the structured surface of the back of the film carrier in order to provide the positive locking in this way, for example.
  • the projection elements themselves can already form mountains that can engage in suitable valleys of the structured surface of the back of the film carrier.
  • the form fit does not have to withstand infinitely large forces, but that sufficiently steep slopes are sufficient to increase the stability of a winding.
  • the combination of the structured surface of the back of the film carrier on the one hand and the projection elements on the other, which can engage with each other parallel to the film carrier, can be sufficient, even to a very small extent, to enable the desired stabilization.
  • peaks and valleys of the structured surface of the projection elements i.e. the surface of the projection elements that faces away from the film carrier, can engage peaks and valleys of the structured surface of the back of the film carrier, even to a very small extent, in order to increase the stability of the winding and thus provide a corresponding form fit.
  • the form fit does not need to withstand infinitely large forces.
  • the form fit can withstand forces that are approximately equivalent to the forces required to bend the film carrier. As long as the film carrier can be bent, it will usually be possible to break the associated form fit, whereby - as already mentioned above - this can already be sufficient to stabilize a winding, i.e. a spool or roll, to the desired extent compared to conventional windings.
  • the surface of the back of the film carrier and the projection elements or the surface of the back of the film carrier and a structured surface of the projection elements form a positive connection perpendicular to the machine direction or in the transverse direction.
  • This alone can stabilize the respective winding, i.e. the spool or roll, in particular in the axial direction of the winding or in the transverse direction, since the winding comprises the hook tape material wound in the machine direction.
  • a positive connection effective in the machine direction can also stabilize a winding, in particular in order to stabilize a hook material under inherent stress in a winding on the lower layers of the winding. Accordingly, a combination of the directions, i.e. perpendicular to the machine direction and perpendicular to the transverse direction or parallel to the transverse direction and parallel to the machine direction, in particular in a plane spanned locally by these directions, can have a corresponding stabilizing effect.
  • periodically structured surfaces can be used to specifically stabilize layers of hook tape material wound on top of one another if the respective periodicity is coordinated with one another.
  • the periodicity of the structured surface of the back of the film carrier is adapted to the periodicity of the projection elements. This then enables the projection elements to come into contact with the periodically structured surface of the back of the film carrier in a harmonious and stabilizing manner. The same applies when coordinating the periodicity between the surface of the projection elements that faces away from the film carrier and the surface of the back of the film carrier.
  • a periodically structured surface can be provided in a particularly simple structural manner, since the corresponding periodicity is achieved by recurring structures of the respective tools used in primary forming or reshaping of the hook tape material. come, for example from rollers and the like, can be provided in a structurally simple manner.
  • the periodicity of the surface of the back of the film carrier and the periodicity of the projection elements perpendicular to a machine direction are the same.
  • This enables a stabilizing alignment of the projection elements to the periodicity of the surface of the back of the film carrier, particularly perpendicular to a machine direction, which can advantageously serve to stabilize the surface in rolls, i.e. in a winding with coaxial layers lying one above the other.
  • the latter also applies in particular to hook tape material segments that run essentially without lateral offset, for example in the area of the axial edges of coils, where stabilization of the respective layers may be desired in particular.
  • the periodicities may also differ from each other by an integer number, so that, for example, only every second projection element engages in a corresponding valley of the surface of the back of the film carrier or vice versa.
  • Stabilization can also be achieved if the surface of the projection elements facing away from the film carrier has a periodicity that is the same as the periodicity of the surface of the back of the film carrier perpendicular to a machine direction or differs from it by an integer number.
  • the respective surface structures of the projection elements and the back of the film carrier can then align with one another and stabilize one another.
  • the adjustment of the periodicity can also be carried out deviating from one or deviating from integer values in order to take into account the associated angles of the respective hook tape material segments which come into contact with one another.
  • a corresponding form fit can be formed by suitably aligning the periodically structured surfaces to one another or the projection elements and the periodically structured surface of the back of the film carrier, which is accordingly advantageous.
  • the periodicity of the structured surfaces or projection elements can also be introduced into the surfaces parallel to the machine direction and that these can be coordinated with one another if this appears advantageous. This can then in particular create a corresponding form fit, which can accordingly have an advantageous stabilizing effect.
  • the structured surface of the back of the film carrier with its positive connection or with its periodically structured and correspondingly adapted surface can thus form corresponding static friction increasing means, which are in particular formed integrally in or with the film carrier.
  • the surface or the structured surface can have a groove structure, wherein the groove structure preferably comprises peaks and valleys arranged parallel to one another.
  • the groove structure preferably comprises peaks and valleys arranged parallel to one another.
  • the grooves can be designed in a variety of ways. In particular, they can be tapered, rounded or trapezoidal.
  • knobbly structure can be provided, for example, which has singular mountains, each surrounded by valleys.
  • the projection elements can form periodically arranged projections which can engage in recesses in the surface of the back of the film carrier. Accordingly, it is advantageous if the projection elements themselves form mountains which can preferably engage in corresponding valleys of the structured surface of the back of the film carrier.
  • the peaks or valleys on the back of the film carrier extend over the entire width of the film carrier, the width in the present context preferably being defined perpendicular to the machine direction, and parallel to the transverse direction. This enables the largest possible surface area to be available for the static friction enhancers, the form fit or the stabilizing structures.
  • the peaks and valleys are arranged parallel to the machine direction of the hook tape material, i.e. parallel to its longitudinal extension direction.
  • this enables structurally simple production, since corresponding structures parallel to the machine direction can be introduced relatively easily into the projection elements or surfaces.
  • such an alignment proves to be relatively insensitive if the residual stress of the hook tape material varies during winding or if different winding radii are present, since this has little or no effect on the periodicity or the distances between the peaks and valleys.
  • the peaks and valleys can be aligned in such a way that the peaks of the surface of the back of the film carrier engage in the valleys of the surface of the projection elements when two layers of the corresponding hook tape material are placed on top of each other.
  • This enables the associated rolls or spools to be stabilized in the simplest possible construction.
  • the latter also applies if the peaks of the surface of the back of the film carrier engage in the spaces between the projection elements, in particular if the projection elements themselves or the projections formed thereby serve as peaks.
  • Stabilization of the windings can also be achieved if the projection elements or the peaks of the surface of the projection elements engage in the valleys of the surface of the back of the film carrier.
  • the desired effects can already be achieved if a height between the mountain and its adjacent valley of a first of the two surfaces is greater than a height between the mountain and its adjacent valley of the second of the two surfaces, which is particularly true if the projection elements or the projections formed thereby are regarded as mountains.
  • This makes it possible to provide one of the structures, for example the surface of the projections, with a significantly lower amplitude than the corresponding opposite surface, such as in this case, for example, the surface of the back of the film carrier.
  • the amplitude of the structure on the surface of the back of the film carrier can be chosen to be significantly lower than the height of the projection elements themselves, which in particular facilitates further processing of the corresponding hook tape material if For example, this is to be separated from the semi-finished product and applied to surfaces.
  • the peaks can be narrower than the valleys, which also applies if the projection elements designed as peaks are narrower than the valleys. In this way, the respective peaks can reach better and deeper into the associated valleys - and in particular with more play. In this way, alignment and associated stabilization or form-fitting can already be ensured in a reliable manner.
  • the projection elements can comprise a component having projections parallel to the film carrier.
  • These projections are preferably arranged with their component having parallel to the film carrier at the end of the projection elements which face away from the film carrier.
  • this component can then also have a structured surface on its surface facing away from the film carrier, in particular also a periodically structured surface, which can then be used as explained above.
  • projections can in particular be designed as jumps, as far as their interlocking ability is concerned, in particular perpendicular to the plane spanned by the machine direction and the transverse direction or width of the film carrier is concerned.
  • the projection elements can be hook-shaped, which is already well known from the prior art.
  • the hook tape material 10 shown in the figures can, as in particular Figures 7 and 8 are wound into hook tape material rolls 100 or hook tape material spools 110.
  • the winding takes place along a machine direction 11, which regularly also represents the longest extension of the hook tape material 10, since this is to serve as a semi-finished product for further processing and thus should be provided in the greatest possible lengths.
  • the hook tape material 10 essentially comprises a film carrier 20 which accordingly extends along the machine direction 11 and is sufficiently flexible to be provided at least within the hook tape material roll 100 or the hook tape material spool 110.
  • the film carrier 20 has a front side 24 and a back side 25, which extend accordingly along the machine direction 11 and perpendicular thereto over a width 26 of the film carrier 20, also referred to as the transverse direction.
  • the width 26 of the film carrier 20, i.e. also the transverse direction, is aligned perpendicular to the machine direction 11.
  • projection elements 30 are arranged, which ultimately represent the hooks of the hook tape material 10.
  • the projection elements 30 can have projections or even jumps in order to strengthen their hooking properties. Such jumps are shown for example in Figures 1, 2 , 5 and 6 shown without numbers, since such things are sufficiently known from the prior art. It is understood that in alternative embodiments, the projection elements 30 can also be formed into real hooks or merely into stems.
  • the projection elements 30 are spaced apart from one another by gaps 38 so that the former can fulfil their interlocking function in a manner known per se.
  • mountains 22 and valleys 23 can be provided, the periodicity of which corresponds to the periodicity of the projection elements 30, which can then serve as mountains 34, as in Figure 1 presented as an example.
  • the latter When wound in the form of a hook tape material roll 100 or hook tape material spool 110, the latter can, particularly if the valleys 23 are wider than the heads of the projection elements 30, engage in the valleys 23 of the surface 21 of the back 25 of the film carrier 20 and in this way form a positive connection which acts at least along the width 26 of the film carrier 20. Accordingly, the respective layers then stabilize each other so that the valleys 23 of the surface 21 of the back 25 of the film carrier 20 act as a means 14 for increasing the static friction.
  • the valleys 23 of the surface 21 of the rear side 25 of the film carrier 20 can in particular be designed in the form of grooves, so that any displacements along the machine direction 11 play no or only an insignificant role.
  • the surfaces 31 of the projection elements 30, i.e. the surfaces 31 of the projection elements 30 facing away from the film carrier 20, can each be provided with a structure, i.e. in particular with peaks 32 and valleys 33, wherein the surface 21 of the rear side 25 of the film carrier 20 can then have corresponding peaks 22 or valleys 23.
  • a positive connection can also be formed, in particular perpendicular to the machine direction 11 or along the width 26 of the film carrier 20, which has a corresponding stabilizing effect, so that the structure provided by the peaks 22 and valleys 23 of the surface 21 of the rear side 25 of the film carrier 20 can be regarded as a means 40 for increasing the static friction.
  • the structure on the surface 21 of the back 25 of the film carrier 20 on the one hand and the structure by the mountains 32 and ridges 33 of the surface 31 of the projection element 30 or the structure formed by the projection elements 30 as mountains 34 on the other hand can each be assigned a height 27, 37 which is oriented perpendicular to the plane spanned by the machine direction 11 and the width 26 or transverse direction or perpendicular to the surfaces 21, 31.
  • heights 27 and 37 can be essentially the same.
  • the height 27 of the valleys 23 of the surface 21 of the rear side 25 of the film carrier 20 can also be significantly lower than the height 37 of the peaks 34 formed by the projection elements 30.
  • the peaks 32 and valleys 33 are provided on the surface 31 of the projection elements 30, it is also conceivable to make the height 37 of the peaks 32 and valleys 33 of the surface 31 of the projection element 30 lower or significantly lower than the height 27 of the peaks 22 and valleys 23 on the surface 21 of the rear side 25 of the film carrier 20.
  • the periodicity of the peaks 22 and valleys 23 on the one hand and the peaks 32 and valleys 33 on the other hand approximately corresponds to each other, as in the embodiments according to Figures 1-6 can be seen.
  • deviations can also be provided so that the respective peaks 22, 32, 34 only engage in every second valley 23, 33 or vice versa or in higher integer multiples. This can also ensure sufficient stabilization of the layers of the hook tape material rolls 100 or hook tape material spools 110.
  • the respective peaks 22, 32 can be designed to be significantly narrower than the valleys 23, 33. This allows for lateral play, so that the layers can also be arranged at an angle to one another or corresponding deviations are possible.
  • the peaks 22, 32 and valleys 23, 33 can each be formed as grooves, as shown in the Figures 2 to 5 is indicated as an example.
  • peaks 22, 32 or valleys 23, 33 of one of the two surfaces 21, 31 are designed to be island-like or knob-like, while the corresponding counterparts of the other surface 21, 31 are then designed to be groove-like, so that deviations along the machine direction 11 appear insignificant or less significant.
  • different winding radii and different tape tensions of the hook tape material 10 within the hook tape material roll 100 or the hook tape material spool 110 do not play such a decisive role.

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  • Mechanical Engineering (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
EP23213444.5A 2022-12-02 2023-11-30 Matériau de bande de crochet, rouleau de matériau de bande de crochet et bobine Pending EP4378344A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102022131979.2A DE102022131979A1 (de) 2022-12-02 2022-12-02 Hakenbandmaterial sowie Hakenbandmaterialrolle und -spule

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EP4378344A1 true EP4378344A1 (fr) 2024-06-05

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Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3341004A (en) 1965-12-16 1967-09-12 Kendall & Co Interlined tapes in roll form
WO1995019242A1 (fr) * 1994-01-13 1995-07-20 Minnesota Mining And Manufacturing Company Article abrasif, son procede de fabrication et machine a abraser
DE9421906U1 (de) 1993-04-16 1997-01-16 Minnesota Mining and Mfg. Co., St. Paul, Minn. Anordnung zur Speicherung/Abgabe von Haftverschlußmaterial
DE29522068U1 (de) 1995-01-14 1999-08-12 Minnesota Mining And Mfg. Co., Saint Paul, Minn. Mehrschichtiges Verschlussystem
US6209814B1 (en) 1999-08-09 2001-04-03 Tricon Conversion, Llc Multi-roll segment package for plastic tape
DE69427164T2 (de) 1993-04-16 2001-08-16 Minnesota Mining And Mfg. Co., Saint Paul Pilzförmiges hakenband für einen mechanischen verbinder
US20020116799A1 (en) 2001-02-26 2002-08-29 Martin Timothy R. Skin-friendly hook fastening component
EP0989810B1 (fr) 1997-06-19 2003-04-02 Minnesota Mining And Manufacturing Company Fabrication par emboutissage superpose de structures d'elements de fixation mecaniques a tiges coiffees
WO2003028499A1 (fr) 2001-06-04 2003-04-10 Velcro Industries B.V. Fixations mettant en prise des boucles de non-tisses et similaires et procedes et machines pour fabriquer ces fixations
WO2005000065A1 (fr) 2003-06-18 2005-01-06 3M Innovative Properties Company Article microstructure entierement mousse
US20050139971A1 (en) * 2003-12-25 2005-06-30 Tsuyoshi Minato Continuous molding method and molding apparatus for surface fastener
EP1635667B1 (fr) 2003-06-11 2007-12-05 3M Innovative Properties Company Element de fixation a crochets
EP1696760B1 (fr) 2003-12-23 2009-09-30 3M Innovative Properties Company Fermeture a agrafes fendu
EP2906071B1 (fr) 2012-10-15 2017-12-06 Velcro Bvba Éléments de fixation à double face
WO2018185677A1 (fr) 2017-04-05 2018-10-11 3M Innovative Properties Company Matériau de base d'ailette de couche ayant un élément de fixation et de multiples plis
EP3072484B1 (fr) 2015-03-26 2020-07-15 The Procter and Gamble Company Bobine d'un substrat tridimensionnel
DE102020007585A1 (de) 2020-12-11 2022-06-15 Gottlieb Binder Gmbh & Co. Kg Verschlussteil

Patent Citations (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3341004A (en) 1965-12-16 1967-09-12 Kendall & Co Interlined tapes in roll form
DE9421906U1 (de) 1993-04-16 1997-01-16 Minnesota Mining and Mfg. Co., St. Paul, Minn. Anordnung zur Speicherung/Abgabe von Haftverschlußmaterial
DE69427164T2 (de) 1993-04-16 2001-08-16 Minnesota Mining And Mfg. Co., Saint Paul Pilzförmiges hakenband für einen mechanischen verbinder
DE69429366T2 (de) 1993-04-16 2002-08-22 Minnesota Mining And Mfg. Co., Saint Paul Anordnung zur Speicherung/Abgabe von Haftverschlussmaterial
DE69403644T3 (de) 1993-04-16 2004-01-29 Minnesota Mining & Mfg Anordnung zur speicherung/abgabe von haftverschlussmaterial
WO1995019242A1 (fr) * 1994-01-13 1995-07-20 Minnesota Mining And Manufacturing Company Article abrasif, son procede de fabrication et machine a abraser
DE29522068U1 (de) 1995-01-14 1999-08-12 Minnesota Mining And Mfg. Co., Saint Paul, Minn. Mehrschichtiges Verschlussystem
EP0989810B1 (fr) 1997-06-19 2003-04-02 Minnesota Mining And Manufacturing Company Fabrication par emboutissage superpose de structures d'elements de fixation mecaniques a tiges coiffees
US6209814B1 (en) 1999-08-09 2001-04-03 Tricon Conversion, Llc Multi-roll segment package for plastic tape
US20020116799A1 (en) 2001-02-26 2002-08-29 Martin Timothy R. Skin-friendly hook fastening component
WO2003028499A1 (fr) 2001-06-04 2003-04-10 Velcro Industries B.V. Fixations mettant en prise des boucles de non-tisses et similaires et procedes et machines pour fabriquer ces fixations
EP1635667B1 (fr) 2003-06-11 2007-12-05 3M Innovative Properties Company Element de fixation a crochets
WO2005000065A1 (fr) 2003-06-18 2005-01-06 3M Innovative Properties Company Article microstructure entierement mousse
EP1696760B1 (fr) 2003-12-23 2009-09-30 3M Innovative Properties Company Fermeture a agrafes fendu
US20050139971A1 (en) * 2003-12-25 2005-06-30 Tsuyoshi Minato Continuous molding method and molding apparatus for surface fastener
EP2906071B1 (fr) 2012-10-15 2017-12-06 Velcro Bvba Éléments de fixation à double face
EP3072484B1 (fr) 2015-03-26 2020-07-15 The Procter and Gamble Company Bobine d'un substrat tridimensionnel
WO2018185677A1 (fr) 2017-04-05 2018-10-11 3M Innovative Properties Company Matériau de base d'ailette de couche ayant un élément de fixation et de multiples plis
DE102020007585A1 (de) 2020-12-11 2022-06-15 Gottlieb Binder Gmbh & Co. Kg Verschlussteil

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