EP3993995A1 - Stratifié élastique à crochets - Google Patents
Stratifié élastique à crochetsInfo
- Publication number
- EP3993995A1 EP3993995A1 EP20734981.2A EP20734981A EP3993995A1 EP 3993995 A1 EP3993995 A1 EP 3993995A1 EP 20734981 A EP20734981 A EP 20734981A EP 3993995 A1 EP3993995 A1 EP 3993995A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hooks
- web
- elastic film
- nonwoven
- elastic
- 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
Links
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- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical class CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 2
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 2
- FACXGONDLDSNOE-UHFFFAOYSA-N buta-1,3-diene;styrene Chemical compound C=CC=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 FACXGONDLDSNOE-UHFFFAOYSA-N 0.000 description 2
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- BXOUVIIITJXIKB-UHFFFAOYSA-N ethene;styrene Chemical group C=C.C=CC1=CC=CC=C1 BXOUVIIITJXIKB-UHFFFAOYSA-N 0.000 description 2
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- 239000005014 poly(hydroxyalkanoate) Substances 0.000 description 2
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- 229920006132 styrene block copolymer Polymers 0.000 description 2
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- ZMKVBUOZONDYBW-UHFFFAOYSA-N 1,6-dioxecane-2,5-dione Chemical compound O=C1CCC(=O)OCCCCO1 ZMKVBUOZONDYBW-UHFFFAOYSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- KYRZZPALUVQDRB-UHFFFAOYSA-N 2-methyl-1,4-dioxocane-5,8-dione Chemical compound CC1COC(=O)CCC(=O)O1 KYRZZPALUVQDRB-UHFFFAOYSA-N 0.000 description 1
- DJIHQRBJGCGSIR-UHFFFAOYSA-N 2-methylidene-1,3-dioxepane-4,7-dione Chemical compound C1(CCC(=O)OC(=C)O1)=O DJIHQRBJGCGSIR-UHFFFAOYSA-N 0.000 description 1
- DXPPIEDUBFUSEZ-UHFFFAOYSA-N 6-methylheptyl prop-2-enoate Chemical compound CC(C)CCCCCOC(=O)C=C DXPPIEDUBFUSEZ-UHFFFAOYSA-N 0.000 description 1
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- 239000004593 Epoxy Substances 0.000 description 1
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 1
- RYECOJGRJDOGPP-UHFFFAOYSA-N Ethylurea Chemical compound CCNC(N)=O RYECOJGRJDOGPP-UHFFFAOYSA-N 0.000 description 1
- 229920000299 Nylon 12 Polymers 0.000 description 1
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- 239000005062 Polybutadiene Substances 0.000 description 1
- 229920002614 Polyether block amide Polymers 0.000 description 1
- 229920000331 Polyhydroxybutyrate Polymers 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
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- XYLMUPLGERFSHI-UHFFFAOYSA-N alpha-Methylstyrene Chemical compound CC(=C)C1=CC=CC=C1 XYLMUPLGERFSHI-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
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- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
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- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
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- 239000012764 mineral filler Substances 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 239000012766 organic filler Substances 0.000 description 1
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 1
- 229920002587 poly(1,3-butadiene) polymer Polymers 0.000 description 1
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- 229920000747 poly(lactic acid) Polymers 0.000 description 1
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- 229920001748 polybutylene Polymers 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
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- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
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- 239000002356 single layer Substances 0.000 description 1
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- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/56—Supporting or fastening means
- A61F13/62—Mechanical fastening means, ; Fabric strip fastener elements, e.g. hook and loop
- A61F13/622—Fabric strip fastener elements, e.g. hook and loop
- A61F13/625—Fabric strip fastener elements, e.g. hook and loop characterised by the hook
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
- B32B3/06—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions for securing layers together; for attaching the product to another member, e.g. to a support, or to another product, e.g. groove/tongue, interlocking
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/56—Supporting or fastening means
- A61F13/5622—Supporting or fastening means specially adapted for diapers or the like
- A61F13/5633—Supporting or fastening means specially adapted for diapers or the like open type diaper
- A61F13/5638—Supporting or fastening means specially adapted for diapers or the like open type diaper adjustable open type diapers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/302—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising aromatic vinyl (co)polymers, e.g. styrenic (co)polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
- B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/022—Non-woven fabric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
- B32B7/14—Interconnection of layers using interposed adhesives or interposed materials with bonding properties applied in spaced arrangements, e.g. in stripes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/15577—Apparatus or processes for manufacturing
- A61F2013/15821—Apparatus or processes for manufacturing characterized by the apparatus for manufacturing
- A61F2013/15861—Apparatus or processes for manufacturing characterized by the apparatus for manufacturing for bonding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/44—Number of layers variable across the laminate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/02—Coating on the layer surface on fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2274/00—Thermoplastic elastomer material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/51—Elastic
Definitions
- the present invention relates to an elastic laminate intended for use in the field of hygiene, and in particular for diapers or adult incontinence diapers, the laminate comprising an upper nonwoven layer s 'extending along a given width corresponding to the CD direction (Cross Direction) and a great length corresponding to the unwinding direction during the manufacture of the laminate, called the MD direction (Machine Direction), and at least one elastic film extending over a width less than or equal to the width of the at least one layer of nonwoven by being fixed thereto, for example by an adhesive, such as glue, or by thermal lamination, ultrasonic welding, or the like by its upper face to the lower face of the nonwoven layer, while hooks intended to cooperate with loops originating from another part of the element comprising the laminate or from another element, are used. llie a region of the upper face of the upper nonwoven layer.
- the present invention aims to overcome the drawbacks of the prior art by providing an elastic laminate with hooks of the kind mentioned above, which can be manufactured at a greater production rate and which, at the same time, exhibits greater longevity of the hooking ability of its hooks when using the hooks in a hook-and-loop cooperation for closing, for example, a diaper around a baby's belt.
- an elastic laminate with hooks is as defined in claim 1.
- an elastic laminate hook assembly comprising an elastic laminate and one or more hook plies disposed on top of the elastic laminate;
- the laminate comprising one or more layers of nonwoven and one or more elastic films fixed under the layer of nonwoven or under at least one layer of nonwoven,
- the or each nonwoven layer having either a constant stiffness or being divided into at least two zones, a first zone in which the nonwoven layer has a first lowest stiffness and at least a second zone in which the non-woven layer has a rigidity greater than the first rigidity,
- the web or each of the webs comprising a respective strip, in particular of thermoplastic material, from which the hooks project;
- the nonwoven layer or layers optionally comprising one or more reinforcing elements in the form of one or more reinforcing bands and / or one or more reinforced zones of one or more of the nonwoven layers forming one or more several second zone (s) of one or more of the nonwoven layers;
- each hooked ply extends between respective lateral end points, respectively left and right;
- the or each reinforcing element extends between respective lateral end points, respectively left and right;
- - the web or at least one web (5) with hooks is at least partially fixed directly to a nonwoven layer of constant rigidity or to said first zone of a nonwoven layer or to the elastic film or to at least an elastic film; - one (Pg6; Pd6) of the two lateral end points (Pg6, Pd6), respectively left and right, of the web or of the at least one web (5) with hooks is located directly above a point of the or at least one elastic film; and or
- the strength is improved at the level of the connection between the end edges of the web to hooks closest to the elastic film and thus fight, to a very great extent, against untimely delamination of the elastic film due to the stresses exerted to position the hooks at a suitable location of the diaper and / or by the action of hooks on opposing loops, for example in the case of a diaper, as the diaper is used, for example by being opened, then closed, and so on and so on is ensured to longer life of the hooking capacity of the elastic hook laminate.
- the elastic film (s) extend in the CD direction over a width less than the width in the CD direction of the laminate.
- one or more elastic film (s) extend in the CD direction over a width less than or equal to the width of the upper non-woven layer (s) and / or the width of the upper nonwoven layer (s) is equal to the width in the CD direction of the laminate.
- one or more elastic film (s) extend in the CD direction over a width greater than the width of the upper non-woven layer (s) and / or the width of the upper nonwoven layer (s) is less than the width in the CD direction of the laminate.
- the other side end point, respectively right and left, of the or the at least one web with hooks is not plumb with a point of the elastic film (or is cantilever of the elastic film). So the amount of elastic at the level of the hooked web is limited to just necessary to allow good anchoring of the film.
- the elastic laminate with hooks extending in width in a CD direction and lengthwise in an MD direction, comprises:
- each elastic film extending in the CD direction and lengthwise in the MD direction being at a distance from each other so as to define between them an elastic film gap s' extending into the gap of nonwoven over a width less than the latter, each elastic film being fixed by its upper face to the underside of a respective upper nonwoven layer, in particular by interposing an adhesive, for example glue, by thermal lamination, by ultrasonic welding or the like; and
- a web with hooks comprising a strip, in particular of thermoplastic material, from which protruding hooks, which is fixed, for example glued, laminated or welded or the like, on either side of said elastic film gap, to the faces upper elastic films by covering said gap with elastic film, the hooks being intended in particular to cooperate with loops following a hook-and-loop cooperation with hook-loops.
- the web with hooks extends over the entire width or substantially over the entire width of the non-woven gap.
- the elastic laminate with hooks extending in width in a CD direction and lengthwise in an MD direction, comprises:
- each elastic film extending in the CD direction and lengthwise in the MD direction being spaced from each other so as to define between them an elastic film gap extending in the nonwoven gap over a width less than the latter, each elastic film being fixed by its upper face to the lower face of a respective upper nonwoven layer, in particular by interposing an adhesive, for example glue, by thermal lamination, by ultrasonic welding or the like; and
- a web with hooks comprising a strip, in particular of thermoplastic material, from which protrude hooks, which is fixed, for example glued, laminated or welded or the like, on either side of said non-woven gap, to the faces upper layers of the two layers of nonwoven by covering said interstice of nonwoven, the hooks being intended in particular to cooperate with loops following a hook-and-loop cooperation with hook-loops.
- an elastic laminate with hooks comprises:
- a hooked nonwoven element which comprises at least one upper nonwoven layer extending widthwise in a CD direction and lengthwise in an MD direction, in particular one or more upper nonwoven layer (s) and a lower nonwoven layer, and one or more hooked webs, the hooks projecting from a region of an upper surface of the hooked nonwoven member, in particular from a region of the upper surface of the or upper nonwoven layer (s); and
- one or more elastic film (s) extending in the CD direction over a width less than or equal to the width of the hooked nonwoven element, in particular the width of the upper nonwoven layer, the or each elastic film being fixed by its upper face to the lower face of the upper nonwoven layer, in particular by interposing an adhesive, for example glue, by thermal lamination, by ultrasonic welding or the like;
- the hooked nonwoven element being divided into at least two types of area, a first type of area in which the hooked nonwoven element has a first lowest stiffness, and a second type of area in which the local stiffnesses of the hooked nonwoven element are all greater than the first stiffness, the or each zone of the second type, or further zone high stiffness, extending in the CD direction between respective side end points of the region of greatest stiffness, respectively left and right, and is characterized in that
- one of the two lateral end points, left and right respectively, of the zone or one of the zones of greatest stiffness is located directly above a point of the or an elastic film.
- the elastic film (s) extend in the CD direction a width less than the width in the CD direction of the nonwoven hook member.
- the elastic laminate for example comprising adhesive between the upper and lower nonwoven layers and between the upper and lower nonwoven layers respectively and the film or films (s ) elastic (s), the nonwoven hook element consists (only) of
- the or each web comprising a strip, in particular of thermoplastic material, from which protrude hooks, which is fixed, for example glued, laminated or welded or the like, on the upper face of the upper nonwoven layer (s) or on the upper face of the elastic film (s), in particular the hooks being intended to cooperate with loops following a hook-and-loop cooperation with hook-loops.
- the elastic laminate for example comprising adhesive between the upper and lower nonwoven layers and between the upper and lower nonwoven layers respectively and the film (s) ( s) elastic (s), the nonwoven hook element consists (only) of:
- the other side end point, respectively right and left, of the zone or of the at least one of the zones of greatest rigidity is not plumb with a point elastic film (or is cantilevered from the elastic film).
- one of the two lateral end points, respectively left and right, of the or at least one web with hooks is not located directly above a point of the area or of at least one of the areas of greater rigidity (or is cantilevered from the area or of at least one of the areas of greater rigidity).
- one of the two lateral end points, respectively left and right, of the or the at least one web with hooks is located directly above a point of the area or at least one of the areas of greatest stiffness.
- the other side end point, respectively right and left, of the web with hooks or of the at least one web with hooks is directly above a point of the elastic film .
- the amount of elastic at the hook ply is maximum to ensure maximum anchorage and maximum coverage of the end of the elastic layer.
- the strip of the hooked web is laminated to the upper nonwoven layer such that the strip comprises fibers and / or filaments of the nonwoven layer and / or fibers and / or filaments are encapsulated in the web of the hooked web.
- the or at least one upper non-woven layer comprises a reinforced zone of upper nonwoven layer, which reinforcement has been effected for example by impregnating it with glue or by performing a heat treatment, and resulting in local stiffening of the material of the nonwoven layer, thereby forming a region within the upper nonwoven layer having greater rigidity than the rest of the nonwoven layer.
- both the or a web with hooks and the reinforced zone overlap an end edge of the elastic film, each having an end point directly above a point of the elastic film.
- the opposite end points of the or at least one web with hooks and of the reinforced zone are not directly above the elastic film (or are cantilevered from the elastic film), i.e. lie outside the area above the elastic film.
- the or at least one web with hooks comprises a central region from which the hooks protrude and at least one edge region, in particular two left and right side edge regions, from which do not project hooks, and one of the two edge regions has at least one point which is directly above a lateral edge of the elastic film.
- edge regions are provided, and the other edge region and the central region lie outside the zone lying above the elastic film.
- the central region of hooks comprises at least one point directly above the reinforced zone, so that the edge region or one of the two edge regions and part of the central region are located above. above the reinforced area.
- the or a web with hooks is arranged centrally on the upper face of the laminate, in particular of the upper nonwoven layer.
- the upper non-woven layer and / or the lower non-woven layer each has or have a basis weight of between 5 and 100 grams / m 2 , in particular between 25 and 65 grams / m 2 .
- the lower nonwoven layer comprises a reinforced zone arranged under the web with hooks, preferably without being below the elastic film.
- the strip of the web with hooks has a thickness of between 10 micrometers and 700 micrometers, in particular a thickness of between 40 micrometers and 120 micrometers.
- the web with hooks may comprise rods and / or hooks.
- the rods and / or hooks have a height of between 5 and 5000 micrometers, more particularly between 5 and 2000 micrometers, or even more particularly between 20 and 800 micrometers, or even more particularly between 30 and 350 micrometers, the height being measured in a direction perpendicular to the upper face of the strip of the web with hooks.
- the hooks and the strip are made in one piece, being from extrusion.
- the hooks and the strip are made of the same material, for example a thermoplastic material.
- the hooks and the strip are made of at least two different thermoplastic materials.
- the MD direction is also designated by “machine direction” or “machine direction” according to the name in English and designates the direction of unwinding of the laminate according to the invention.
- the CD direction is also referred to as “transverse direction” or “cross direction” as the term is used in English and is perpendicular to the MD direction.
- the hooked nonwoven element consists of an upper nonwoven layer extending in width in the CD direction and lengthwise in the MD direction and at least a web with hooks which protrude from a region of the upper surface of the upper nonwoven layer.
- the nonwoven element with hooks consists of an upper nonwoven layer extending in width in the CD direction and lengthwise in the MD direction, of a layer of lower nonwoven extending widthwise in the CD direction and lengthwise in the MD direction and at least one hooked web which protrudes from a region of the upper surface of the upper nonwoven layer, the or the elastic film (s) being received inside the hooked nonwoven element, between the two upper and lower nonwoven layers.
- the present invention also relates to an elastic tab with hooks, intended to be attached to a part, in particular the rear, of a diaper, the tab comprising an elastic laminate according to the invention and / or being obtained by cutting of an elastic laminate according to the invention.
- the tab comprises a substantially rectangular base part and a tongue part projecting laterally from the base part.
- the tab is delimited by a cutting line parallel to the direction, MD and corresponding to one of the side edges of the laminate according to the invention, two respectively lower and upper cutting lines at a distance from one of the 'other and parallel to each other and extending in the CD direction, two intermediate cut lines parallel to the MD direction, two inclined cut lines each extending from a respective intermediate line, in being inclined relative to both the direction CD and the MD direction so as to converge towards each other, and an end cut line, parallel to the MD direction, which interconnects the two inclined lines.
- the base part is delimited by the cutting line parallel to the MD direction, the two respectively lower and upper cutting lines at a distance from each other and parallel to each other and s' extending in the CD direction and the virtual line extending between the two lower and upper cutting lines, parallel to the MD direction and passing through the two intermediate cutting lines, while the tongue portion is bounded by the part of the virtual line extending between the two intermediate lines, the two inclined lines and the end line.
- the cutout corresponding to the end cutting line is effected substantially at the level of the end edge of the web with hooks, respectively of the area of greatest stiffness, while the cutout corresponding to the lines intermediates takes place substantially at the level of the end edge Pd6 of the hooked ply, respectively of the area of greatest stiffness, so that the whole of the central hooked region is located in the tongue-shaped part and the major part of the elastic film (s) are in the base part, a part of the elastic film (s) also encroaching on the tongue part.
- the end cutting line takes place from 1 mm to 10mm from the edge (inside the web with hooks, more particularly from 2mm to 5mm from the edge.
- the elastic tabs thus comprise a portion of web with hooks which extends over the entire height of the ear or elastic tab which has the effect to distribute the stress applied to the tongue in the form of under stresses parallel to the latter on the base part in particular on the elastic film.
- the stresses applied to the elastic film and in particular to the end of the elastic film is distributed over the entire length in MD making it possible to contribute to the reduction of delamination of the elastic film.
- the present invention also relates to a method of cutting a laminate according to the invention to obtain one or more elastic tabs with hooks according to the invention.
- the present invention also relates to a baby diaper or an adult incontinence diaper comprising, in particular, an upper sheet (called “topsheet”), a lower sheet (called “backsheet”) and a core absorbent (called “absorbent core”), arranged between the two sheets, and at least one laminate according to the invention, in particular to form the hook tabs coming laterally from the rear belt of the diaper or incontinence, so that the hooks cooperate with loops from the front face of the belt of the diaper, to achieve the closure of the diaper or incontinence.
- topsheet upper sheet
- backsheet lower sheet
- a core absorbent core a core absorbent core
- the present invention also relates to a roll comprising at least one laminate according to the invention, in particular wound on itself, in particular to form, for example after cutting, hook lugs coming laterally from the rear belt of a diaper or incontinence, so that the hooks cooperate with the loops from the front face of the belt of the diaper, to achieve the closure of the diaper or incontinence.
- FIG. 1A is an exploded CD sectional view of a laminate according to a first embodiment of the invention
- Figure 1B is a top view of a portion of the laminate of Figure 1A further comprising dashed lines to explain how the laminate of Figure 1A can be cut to form tabs. hooks for use, for example, in diapers;
- FIG. 2 is a view identical to that of FIG. 1A on a somewhat larger scale representing a certain number of distances defined in the description;
- FIG. 3A is a CD sectional view of a laminate according to another embodiment of the invention.
- Figure 3B is a top view of part of the laminate of Figure 3A further comprising dashed lines showing how the laminate may be cut to form hook legs for use, for example , in diapers;
- FIG. 4A is a CD sectional view of a laminate according to another embodiment of the invention.
- Figure 4B is a top view of a portion of the laminate of Figure 4A further comprising dashed lines showing how the laminate may be cut to form hook legs for use, for example , in diapers or the like;
- FIG. 5A is a CD sectional view of a laminate according to another embodiment of the invention.
- Figure 5B is a top view of a portion of the laminate of Figure 5A;
- Figure 6A is a CD sectional view of a laminate according to another embodiment of the invention.
- Figure 6B is a top view of a portion of the laminate of Figure 6A;
- FIG. 7A is a CD sectional view of a laminate according to another embodiment of the invention.
- Figure 7B is a top view of a portion of the laminate of Figure 7A;
- FIG. 8A is a CD sectional view of a laminate according to another embodiment of the invention.
- Figure 8B is a top view of part of the laminate of Figure 8A;
- FIG. 9A is a CD sectional view of a laminate according to another embodiment of the invention.
- Figure 9B is a top view of a portion of the laminate of Figure 9A further including dashed lines showing how the laminate may be cut to form hook legs for use, for example , in diapers or the like;
- FIG. 10A is a CD sectional view of a laminate according to another embodiment of the invention.
- Figure 10B is a top view of part of the laminate of Figure 10A;
- FIG. 11A is a CD sectional view of a laminate according to another embodiment of the invention.
- Figure 11 B is a top view of part of the laminate of Figure 1 1 A;
- FIG. 12A is a CD sectional view of a laminate according to another embodiment of the invention.
- Figure 12B is a top view of part of the laminate of Figure 12A;
- Figure 13A is a CD sectional view of a laminate according to another embodiment of the invention.
- Figure 13B is a top view of a portion of the laminate of Figure 13A further comprising dashed lines showing how the laminate may be cut to form hook legs for use, for example , in diapers or the like;
- FIG. 14A is a CD sectional view of a laminate according to another embodiment of the invention.
- Figure 14B is a top view of a portion of the laminate of Figure 14A further including dashed lines showing how the laminate may be cut to form hook legs for use, for example , in diapers or the like;
- FIG. 15A is a CD sectional view of a laminate according to another embodiment of the invention.
- Figure 15B is a top view of a portion of the laminate of Figure 15A further comprising dashed lines showing how the laminate may be cut to form hook legs for use, for example , in diapers or the like;
- FIG. 16A is a CD sectional view of a laminate according to another embodiment of the invention.
- Figure 16B is a top view of a portion of the laminate of Figure 16A;
- FIG. 17A is a CD sectional view of a laminate according to another embodiment of the invention.
- Figure 17B is a top view of a portion of the laminate of Figure 17A;
- Figure 18A is a CD sectional view of a laminate according to another embodiment of the invention.
- Figure 18B is a top view of a portion of the laminate of Figure 18A;
- FIG. 19A is a CD sectional view of a laminate according to another embodiment of the invention.
- Figure 19B is a top view of a portion of the laminate of Figure 19A;
- Fig. 20A is a CD sectional view of a laminate according to another embodiment of the invention.
- Figure 20B is a top view of a portion of the laminate of Figure 20A further comprising dashed lines showing how the laminate may be cut to form hook legs for use, for example , in diapers or the like;
- FIG. 21A is a CD sectional view of a laminate according to another embodiment of the invention.
- Figure 21B is a top view of a portion of the laminate of Figure 21A;
- FIG. 22A is a CD sectional view of a laminate according to another embodiment of the invention.
- Figure 22B is a top view of a portion of the laminate of Figure 22A;
- FIG. 23A is a CD sectional view of a laminate according to another embodiment of the invention.
- Figure 23B is a top view of a portion of the laminate of Figure 23A;
- Fig. 24 is a CD sectional view of a laminate according to yet another embodiment of the invention.
- Fig. 25 is a CD sectional view of a laminate according to yet another embodiment of the invention.
- Figure 26 is a CD sectional view of a laminate according to one embodiment of the invention.
- Figure 27 is a CD sectional view of a laminate according to another embodiment of the invention.
- Figure 28 is a CD sectional view of a laminate according to yet another embodiment of the invention.
- Figure 29 is a CD sectional view of a laminate according to yet another embodiment of the invention.
- Figure 30 is a CD sectional view of a laminate according to yet another embodiment of the invention.
- Figure 31 is a CD sectional view of a laminate according to yet another embodiment of the invention.
- Figure 32 is a CD sectional view of a laminate according to yet another embodiment of the invention.
- FIG. 1A there is shown a first embodiment of the invention.
- the elastic laminate which is represented therein in section in FIG. 1A in the direction CD extends perpendicularly to the figure over a very long length (the laminate is intended to be rolled up) and over a given width L of the laminate .
- the elastic hook laminate comprises an elastic laminate which has a lower nonwoven layer 1, an upper nonwoven layer 2 and, interposed between the two upper and lower nonwoven layers, two left elastic films 3 and 4 and straight, each of a width smaller than the width L of the laminate, the sum of the two widths (here the two films have the same width Le, but could be of different widths) also being less than the width L of the laminate .
- the elastic hook laminate also has a hooked web 5, centrally disposed on the upper nonwoven layer 2 and made up of a base strip 6 from which protrudes hooks 10.
- the upper nonwoven layer 2 s' extends in the CD direction across the entire CD width of the laminate.
- the rigidity of the nonwoven layer 2 is constant over its entire width in the CD direction.
- the lower nonwoven layer 1 extends in the CD direction over the entire CD width of the laminate.
- the rigidity of the nonwoven layer 1 is constant over its entire width in the CD direction.
- a nonwoven element 8 with hooks is thus formed by the assembly consisting of the lower nonwoven layer 1, the upper nonwoven layer 2, and the web 5 with hooks, as well as possible layers of adhesive or glue between the two layers of nonwoven, between the upper layer of nonwoven and the web with hooks and between the layers of nonwoven and the elastic film.
- the two elastic films 3 and 4 are fixed respectively on the top and on the bottom to the two layers 1 and 2 of nonwoven, for example by glue, in particular strips of glue which are not necessarily continuous and can in particular be produced in the form of glue points or lines of glue or by hot lamination.
- glue in particular strips of glue which are not necessarily continuous and can in particular be produced in the form of glue points or lines of glue or by hot lamination.
- glue and / or optionally additional reinforcing elements (not shown in the figures).
- the elastic film 3 extends between two left and right end edges which in FIG. 1A, in CD section, forms two end points Pg3 and Pd3, respectively left and right, of the elastic film 3.
- the elastic film 4 extends between two left and right end edges which in FIG. 1A, in CD section, forms two end points Pg4 and Pd4, respectively left and right, of the elastic film 4.
- the base strip 6 of the web 5 with hooks extends between two left and right end edges which in the figure, in CD section, forms two end points Pg6 and Pd6, respectively left and right, of the base band, which also form the two end points Pg5 and Pd5 of the web 5 with hooks.
- the base strip 6 comprises two left and right edge regions 7g and 7d from which do not protrude from hooks and a central region 9 from which protrude hooks 10.
- the central region 9 with hooks is delimited by two edges left and right end which in FIG. 1A, in section CD, forms two end points Pg10 and Pd10, respectively left and right, of the central region 9.
- the web 5 with hooks is fixed by gluing, thermal lamination, ultrasonic welding or the like from the lower face of the base strip 6 to the upper face of the upper non-woven layer 2.
- the nonwoven element 8 with hooks it is possible to define a zone of first rigidity, which corresponds to the rigidity of the two layers 2 of nonwoven taken alone with the adhesive between them, that is to say - say in the two regions to the left and to the right of the web 5 with hooks, which extend on the one hand from the left end edge of the nonwoven layer 2 to the left edge Pg6 of the strip 6 base and on the other hand from the right edge Pd6 of the base strip 6 to the right end edge of the nonwoven layer 2.
- the web 5 with hooks is located on top of the elastic laminate and above the two elastic films 3 and 4, and the edge or end point Pg6 of the web 5 with hooks is located in line with the elastic film 3, while the edge or end point Pd6 of the web with hooks is not in line with the elastic film 3 (or is cantilevered from the latter) and in particular is directly above a point at a distance, in the transverse direction, from the elastic film 3.
- the web 5 with hooks overlaps the right end point Pd3 of the elastic film 3.
- the edge or end point Pd6 of the web 5 with hooks is directly above the elastic film 4, while the edge or end point Pg6 of the web 5 with hooks n 'is not directly in line with the elastic film 4 (or is cantilevered therefrom) in particular is in line with a point at a distance, in the transverse direction, from the elastic film 4.
- the web 5 with hooks overlaps the left end point Pg4 of the elastic film 4.
- the edge or end point Pg6 of the zone of greatest rigidity of the non-woven element 8 with hooks is directly above the elastic film 3, while the edge or point End Pd6 of the zone of greatest rigidity is not directly above the elastic film 3 (or is cantilevered from the latter) and in particular is directly below a point at a distance, in the transverse direction, of the elastic film 3.
- the area of greatest stiffness of the nonwoven element 8 overlaps the right end point Pd3 of the elastic film 3.
- the edge or end point Pd6 of the area of greatest stiffness of the non-woven element 8 is directly above the elastic film 4, while the edge or point Pg6 d the end of the zone of greatest rigidity is not directly above the elastic film 4 (or is cantilevered thereof) and in particular is directly above a point at a distance, in the transverse direction, from the elastic film 4.
- the area of greatest stiffness of the non-woven element 8 overlaps the left end point Pg4 of the elastic film 4.
- the central region 9 with hooks does not overlap any point or edge of the two elastic films 3 and 4, remaining entirely in line with the zone extending between the two. left and right elastic films 3 and 4.
- FIG. 1B there is shown the laminate seen from above over part of its length. Dashed lines represent cutting lines for cutting the laminate into a succession of tabs 11g and 11d with hooks, left and right respectively.
- hooked tabs also called ears
- These hooked tabs are in particular intended to be fixed to the respectively left and right edges of the rear part of a diaper or the like so that the hooks protrude laterally to come s 'Hang from elements, including loops, formed in the front portion of the diaper or the like (including an adult incontinence diaper) to provide hook-and-loop closure of the diaper or the like.
- Each tab 11g, 11d comprises a substantially rectangular base portion 12g, 12d and a tongue portion 13g, 13d projecting laterally from the base portion 12g, 12d.
- Each tab is delimited by a cutting line 14g, 14d parallel to the direction, MD and corresponding to one of the side edges of the laminate of FIG. 1A, two cutting lines 15g, 15d and 16g, 16d respectively lower and upper spaced apart and parallel to each other and extending in the CD direction, two cutout lines 17g, 17d and 18g, 18d parallel to the MD direction, two cutout lines 19g , 19d and 20g, 20d inclined each extending from an intermediate line 17g, 17d and 18g, 18d respectively, being inclined with respect to both the CD direction and the MD direction so as to converge towards each other. the other, and a line 21 g, 21 d of end cut, parallel to the direction MD, which connects the two inclined lines 19g, 19d and 20g, 20d to each other.
- the two intermediate cutting lines 17g, 17d and 18g, 18d have different lengths (in the MD direction), but could also be of the same length. Likewise, the angles of inclination of the two inclined lines are equal in absolute value (being of opposite signs) but could be of different values.
- the substantially rectangular base part 12g, 12d is delimited by the cutting line 14g, 14d parallel to the MD direction, the two cutting lines 15g, 15d and 16g, 16d respectively lower and upper at a distance from one of the other and parallel to each other and extending in the CD direction and the virtual line extending between the two cutting lines 15g, 15d and 16g, lower and upper 16d, parallel to the MD direction and passing through the two intermediate cutting lines 17g, 17d and 18g, 18d.
- the tab portion 13g, 13d is delimited by the part of the virtual line extending between the two lines 17g, 17d and 18g, 18d intermediate, the two lines 19g, 19d and 20g, 20d inclined and the line 21 g, 21 end d.
- the end cutting lines 21 g, 21 d extend from 1 mm to 10mm from the edge, inside the web with hooks, more particularly from 2mm to 5mm from the edge.
- the elastic tabs thus comprise a portion of the web 5 with hooks which extends over the entire height of the ear or elastic tab.
- the cutout corresponding to the line 20g, 20d of end cutout is effected substantially at the level of the end edge Pg6 of the zone of greatest rigidity (which in the embodiment described here also corresponds at the left end edge of the web 5 with hooks or of its base strip 6) while the cut corresponding to the intermediate lines 17g, 17d and 18g, 18d is effected substantially at the level of the end edge Pd6 of the zone of greater rigidity (which in the embodiment described here also corresponds to the right end edge of the web 5 with hooks or of its base strip 6).
- the whole of the central hooked region 9 is located in the tab portion 13g, 13d and the major part of the elastic films 3 and 4 are located in the respective base part 12d, 12g.
- part of the elastic films 3 and 4 encroaches on the tab portion 13g, 13d.
- H2 ⁇ H3-Hb and / or The distance (H2-Hb) between the underside of the base 6 band (including hooks / rods) and the upper face of each elastic film 3 and 4 is less than the distance (H3 -Hb) between the lower face of the base strip 6 and the lower face of each elastic film 3 and 4 (i.e. H2 -Hb ⁇ H3-Hb ).
- the base strip 6 is arranged in a first space defined by two parallel planes (formed by the upper face and the lower face of the base) and each elastic film 3 and 4 is arranged in a second space defined by two other parallel planes (formed by the upper face and the lower face of each elastic film 3 and 4), the first and second spaces are distinct.
- the width of the “overlap” or overlap Lo is between 0.5 and 15 mm, in particular between 1 and 7 mm, more particularly between 1 and 5 mm.
- the web with hooks may comprise rods and / or hooks.
- the rods and / or hooks have a height of between 5 to 5,000 micrometers, more particularly between 5 and 2,000 micrometers, or even more particularly between 20 and 800 micrometers, the height being measured in a direction perpendicular to the upper face of the strip of the tablecloth with hooks.
- nonwoven means a product obtained at the end of the formation of a web of fibers and / or filaments which have been consolidated. Consolidation can be mechanical, chemical or thermal and results in the presence of a bond between the fibers and / or the filaments. This consolidation can be direct, that is to say made directly between the fibers and / or filaments by welding, or it can be indirect, that is to say through an intermediate layer between the fibers. and / or the filaments, for example a layer of glue or a layer of binder.
- nonwoven refers to a sliver or web-like structure of fibers and / or filaments which are interwoven in a non-uniform, irregular or random manner.
- a nonwoven can have a single layer structure or a multiple layer structure.
- a nonwoven can also be joined with another material to form a laminate.
- a nonwoven can be made from different synthetic and / or natural materials. Exemplary natural materials are cellulose fibers, such as cotton, jute, linen and the like and can also include re-processed cellulose fibers, such as rayon or viscose. Natural fibers for a nonwoven material can be prepared using various methods such as carding.
- Exemplary synthetic materials include, but are not limited to, synthetic thermoplastic polymers, which are known to form fibers which include, but are not limited to polyolefins, eg, polyethylene, polypropylene, polybutylene and the like; polyamide, for example polyamide 6, polyamide 6.6, polyamide 10, polyamide 12 and the like; polyesters, for example polyethylene terephthalates, polybutylene terephthalates, polylactic acids and the like, polycarbonates, polystyrenes, thermoplastic elastomers, vinyl polymers, polyurethanes and mixtures and co-polymers thereof.
- synthetic thermoplastic polymers which are known to form fibers which include, but are not limited to polyolefins, eg, polyethylene, polypropylene, polybutylene and the like
- polyamide for example polyamide 6, polyamide 6.6, polyamide 10, polyamide 12 and the like
- polyesters for example polyethylene terephthalates, polybutylene terephthalates, polylactic acids and the like,
- the nonwoven can be a nonwoven of the Spunbond, Spunmelt, thermo bonded carded, Spunlace (carded nonwoven consolidated by hydroliage), SMS, SMMS, SS, SSS, SSMMS, SSMMMS, Air through type. Or other.
- elastomeric material As a nonlimiting example of elastomeric material, mention may be made of: styrene / isoprene (SI), styrene / isoprene / styrene (SIS), styrene / butadiene / styrene (SBS), styrene-ethylene / butylene-styrene ( SEBS), styrene-ethylene / propylene-styrene (SEPS) or SIBS.
- SI styrene / isoprene
- SIBS styrene / butadiene / styrene
- SEBS styrene-ethylene / butylene-styrene
- SEPS styrene-ethylene / propylene-styrene
- polymer For example up to 50% by mass but, preferably, less than 30% by mass of polymer can be added in order to modify certain characteristics of the base materials (elasticity, heat resistance, processability, UV resistance, colorant, ...), such as polystyrenes or poly ⁇ -methyl-styrene, epoxy polyesters, polyolefins, for example polyethylenes or certain ethylene / vinyl acetates, preferably those of higher molar masses.
- the elastomeric material can be, in particular, a styrene-isoprene-styrene, available for example from the company Kraton Polymers, under the name KRATON D (registered trademark), or from the company DEXCO POLYMERS LP under the name VECTOR SBC. 4211 (Trademark). It is also possible to use TPE (ThermoPlastic Elastomer) materials, in particular a thermoplastic polyurethane elastomer, in particular PELLETHANE (registered trademark) 2102-75A from The Dow Chemical Company.
- TPE ThermoPlastic Elastomer
- styrene-butadiene-styrene in particular KRATON D-2122 (registered trademark) from the company Kraton. Polymers, or VECTOR SBC 4461 (Trademark) from Dexco Polymers LP. It is also possible to use a styrene-ethylene / butylene, in particular KRATON G-2832 (registered trademark) from the company Kraton Polymers, or a styrene-ethylene-butylene-styrene (SEBS) block copolymer (SEBS), in particular KRATON (registered trademark) G2703 .
- SEBS styrene-ethylene-butylene-styrene
- polymer blocks such as diblock, triblock, multiblock, multiblock, star and radial are also contemplated in this disclosure.
- block copolymers of higher molecular weights may be desirable.
- Block copolymers are available from Kraton Polymers U. S. LLC of Houston, Tex. under the designations, for example, Kraton MD6716, Kraton D1102, Kraton SIBS D1102, Kraton D1184, Kraton FG1901 and Kraton FG1924, and Septon Company of America, Pasadena, Tex. under the names Septon 8007, Septon V9827 and Septon 9618. Dynasol of Spain is another potential supplier of these polymers.
- the Kraton MD6716 SEBS triblock polymer is particularly suitable for the present disclosure.
- polyolefin polymers mainly copolymers of ethylene and / or propylene, having characteristics of elastomers, in particular resulting from metallocene catalysis, such as VISTAMAXX VM-1120 (registered trademark), available from from the company Exxon Mobil Chemical or else polymers loaded with rubber, such as for example Santoprene loaded with EPDM.
- polyolefin-based thermoplastic elastomers for use in elastomeric film layers include, inter alia, a crystalline polyolefin, for example, a homopolymer or a copolymer of an alpha-olefin having 1 to 20 carbon atoms. , and comprising 1 to 12 carbon atoms.
- Ethylene homopolymer can be prepared by any of the low pressure and high pressure processes.
- Homopolymer of propylene examples include polypropylene impact copolymer PP7035E4 and polypropylene random copolymer PP9574E6 (Exxon Mobil, Houston, Tex.).
- Alpha-olefins include, for example, ethylene, propylene, butene-1, 4-methyl-1 -pentene, 1-hexene and 1 -octene.
- thermoplastic elastomers based on polyolefins available commercially and intended for use in the layers of elastomeric film, mention may be made of VISTAMAXX.TM. (propylene-based elastomer, available from ExxonMobil Chemical, Houston, Tex.), INFUSE. TM. (Olefin block copolymers, available from The Dow Chemical Company, Midland, Michigan), VERSIFY.TM. (propylene-ethylene copolymers) such as VERSIFY.TM. 4200 and VERSIFY.TM. 4300 (Dow Chemical Company, Midland, Michigan), ENGAGE. TM.
- VISTAMAXX.TM. propylene-based elastomer, available from ExxonMobil Chemical, Houston, Tex.
- INFUSE. TM. Ole block copolymers, available from The Dow Chemical Company, Midland, Michigan
- VERSIFY.TM. propylene-ethylene copolymers
- thermoplastic elastomer based on polyolefin is VISTAMAXX.TM. 6102FL or VISTAMAXX 7050 FLX (available from ExxonMobil Chemical, Houston, Tex.).
- VISTAMAXX.TM. 6102FL or VISTAMAXX 7050 FLX available from ExxonMobil Chemical, Houston, Tex.
- the reference “.TM” for registered brand names corresponds to "Trade Mark”.
- thermoplastic elastomer can be a thermoplastic ester / ether elastomer or thermoplastic polyurethanes.
- the term “elastomeric material” means a material which can be stretched without breaking under the effect of a stretching force exerted in a given direction and which can substantially regain its shape and its initial dimensions after release of this force d stretching. It is for example a film which retains a residual deformation or remanence after elongation and relaxation (residual deformation also called “permanent set” or “SET") less than or equal to 30%, preferably less than or equal to 20%. , even more preferably less than or equal to 10%, of its initial dimension (before elongation) for an elongation of 100% of its initial dimension, at room temperature (23 ° C - degree Celsius).
- the elastomeric material may be a thermoplastic elastomeric material, in particular a physically crosslinked thermoplastic elastomeric material, such as those described in the present disclosure or a chemically crosslinked thermoplastic elastomer material.
- LLDPE Linear Low Density PolyEthylene or linear low density polyethylene
- LDPE Low Density PolyEthylene or low density polyethylene
- m-PE Metallocene PolyEthylene
- HDPE High Density PolyEthylene or high density polyethylene
- EVA Ethylene Vinyl Acetate
- PP Polypropylene TPE type of Adflex and Vistamaxx, comprising a monomodal or multimodal (for example bimodal) molar mass distribution, in particular a composition comprising LLDPE and a plastomer, in particular a polyethylene-based plastomer.
- Plastics can be combined to form mixtures.
- basic materials homogeneity, elasticity, heat resistance, UV resistance, colorant, processability, etc.).
- FIGS. 3A to 23A and 3B to 23B other embodiments of the invention are shown.
- an element y is identical to that of the embodiment of FIGS. 1A and 1B, it is designated by the same numerical reference and its description is not repeated.
- FIGS. 3A and 3B another embodiment of the invention is shown. In this embodiment, the arrangement is identical to that shown in Figures 1A and 1B, except that in this embodiment the hooks extend over the entire width of the hooked web, which thus has no selvage. In this embodiment, the hook region overlaps each of the points or edges of the two elastic films 3 and 4.
- FIG. 3B the cutting lines for forming the hooked legs are identical to the cutting lines of FIG. 3A.
- FIGs 4A and 4B there is shown yet another embodiment of the invention.
- the only difference with respect to the embodiment of Figures 1A and 1B is that the hooks are distributed along areas in the form of discontinuous islands and not, as in Figures 1A and 1B, following a continuous strip in the MD direction.
- the central region of hooks consists of a row extending in the MD direction of discontinuous islands separated from each other by separation regions without hooks.
- FIG. 5A and 5B there is shown another embodiment of the invention.
- the elastic laminate with hooks in section along the CD direction, extends perpendicularly to FIG. 5A over a very long length (the laminate is intended to be rolled up) and over a given width L of the laminate.
- the elastic hook laminate comprises an elastic laminate which comprises a lower nonwoven layer 1, an upper nonwoven layer 2 and, interposed between the two upper and lower nonwoven layers, an elastic film 3, arranged centrally. , of a width The smaller than the width L of the laminate.
- the rigidity of each layer 1 and 2 of nonwoven is constant over its entire width in the CD direction.
- the laminate also has a web 5 with hooks, arranged offset from the center (in the case shown to the left) and consisting of a base strip 6 from which protruding hooks 7.
- a nonwoven hook element is thus formed by the assembly consisting of the lower nonwoven layer 1, the upper nonwoven layer 2 and the web 5 with hooks, as well as any layers. adhesive or glue between the two layers of nonwoven, between the top layer of nonwoven and the hooked web and between the layers of nonwoven and the elastic film.
- the elastic film 3 is fixed respectively on the top and on the bottom to the two layers 1 and 2 of nonwoven, for example by glue, in particular strips of glue which are not necessarily continuous and can in particular be made in the form of dots of glue or lines of glue.
- glue in particular strips of glue which are not necessarily continuous and can in particular be made in the form of dots of glue or lines of glue.
- the elastic film 3 extends between two left and right end edges which in the figure, in CD section, forms two end points Pg3 and Pd3, respectively left and right, of the elastic film 3.
- the base strip 6 of the web 5 with hooks extends between two left and right end edges which in the figure, in CD section, forms two end points Pg6 and Pd6, respectively left and right, of the base band.
- the base strip 6 comprises two left and right edge regions 7g and 7d from which do not protrude from hooks and a central region 9 from which protrude hooks 10.
- the central region 9 with hooks is delimited by two edges left and right end which in the figure, in section CD, forms two end points Pg10 and Pd10, respectively left and right, of the central region 9.
- the web 5 with hooks is fixed by gluing, thermal lamination, ultrasonic welding or the like from the underside of the base strip 6 to the upper face of the upper nonwoven layer 2.
- the nonwoven element 8 with hooks it is possible to define a zone of first rigidity, which corresponds to the rigidity of the two layers 1 and 2 of nonwoven taken alone with the adhesive between them, that is i.e. in the two regions to the left and to the right of the web 5 with hooks, which extend on the one hand from the left end edge of the two layers 1 and 2 of nonwoven to the left edge Pg6 of the base strip 6 and on the other hand from the right edge Pd6 of the base strip 6 up to the right end edge of the two layers 1 and 2 of nonwoven.
- a zone of greater rigidity which extends between the end edges Pg6 and Pd6 and which encompasses both the part of the layers 1 and 2 of nonwoven which is located below these. two edges and the web 5 with hooks.
- the stiffness of the area of greatest stiffness is, with respect to the first stiffness, greater than is the stiffness at the selvages 7g and 7d without hooks. But in these two areas of different stiffness, each stiffness is however greater than the first stiffness, which corresponds to the smallest stiffness that can be defined for a zone of the non-woven element 8.
- the web 5 with hooks is located on top of the elastic laminate and above the elastic film 3, and the edge or end point Pg6 of the web with hooks of the element 8 is not -woven with hooks is plumb with elastic film 3, while the edge or end point Pd6 of the hooked web is not directly with elastic film 3 (or is cantilevered from the latter) and in particular is directly above a point at a distance, in the transverse direction, from the elastic film 3, in the direction away from the elastic film.
- the hooked web of the nonwoven element overlaps the right end point Pd3 of the elastic film 3.
- the edge or end point Pg6 of the area of greatest stiffness of the non-woven element 8 with hooks is directly above the elastic film 3, while the edge or point End Pd6 of the zone of greatest rigidity is not directly above the elastic film 3 (or is cantilevered from the latter) and in particular is directly below a point at a distance, in the transverse direction, of the elastic film 3, in the direction away from the elastic film.
- the zone of greatest stiffness of the nonwoven element overlaps the right end point Pd3 of the elastic film 3.
- the central hooked region 9 does not overlap any point or edge of the two elastic films 3 and 4, remaining in its entirety in line with the area extending to the outside of elastic film 3.
- FIGS. 6A and 6B there is shown another embodiment of the invention.
- the arrangement is identical to that shown in FIGS. 5A and 5B, except for the fact that in this embodiment the web with hooks only has one edge zone on the side opposite to the film 3. elastic, the hook region extending from the single selvage area on the opposite side to the edge of the hooked web on the elastic film side 3. As a result, in this embodiment, the hook region also overlaps the edge of the elastic film 3 overlapped by the hook web.
- FIGS. 7A and 7B another embodiment of the invention is shown.
- the arrangement is identical to that shown in Figures 5A and 5B, except that in this embodiment the hooks extend over the entire width of the hooked web, which thus does not has no selvage.
- the hooked region like the hooked web, overlaps the edge of the elastic film 3.
- FIGS. 9A and 9B another embodiment of the invention is shown.
- the elastic laminate shown therein in section in the direction CD extends perpendicular to Figure 9A over a very large length (the laminate is intended to be rolled up) and over a given width L of the laminate.
- the elastic hook laminate comprises an elastic laminate which has a lower nonwoven layer 1, an upper nonwoven layer 2 and, interposed between the two upper and lower nonwoven layers, a central elastic film 3 of a width The smaller than the width L of the laminate.
- the rigidity of each layer 1 and 2 of nonwoven is constant over its entire width in the CD direction.
- the elastic hook laminate also comprises two webs 5g, 5d with left and right hooks each consisting of a respective left and right base strip 6g, 6d from each of which protrude hooks 10.
- a nonwoven hook member is thus formed. formed by the assembly consisting of the upper layer 2 of nonwoven and the webs 5g, 5d with hooks.
- the elastic film 3 is fixed respectively on the top and on the bottom to the two layers 1 and 2 of nonwoven, for example by glue, in particular strips of glue which are not necessarily continuous and can in particular be produced under the form of glue dots or lines of glue.
- glue glue and / or possibly additional reinforcing elements (not shown in the figures).
- the elastic film 3 extends between two left and right end edges which in the figure, in CD section, forms two end points Pg3 and Pd3, respectively left and right, of the elastic film 3.
- the base strip 6g of the web 5g with hooks extends between two left and right end edges which in FIG. 9A, in CD section, forms two end points Pgg6 and Pgd6, respectively left and right , of the base 6g tape.
- the base strip 6g comprises two left and right edge regions from which do not protrude hooks and a central region 9g from which protrude hooks 10.
- the central hooked region 9g is delimited by two end edges left and right which in the figure, in CD section, forms two end points Pgg10 and Pdg10, respectively left and right, of the central region 9g.
- the base strip 6d of the web 5d with hooks extends between two left and right end edges which in FIG. 9A, in CD section, forms two end points Pdg6 and Pdd6, respectively left and right , of the basic 6d band.
- the base strip 6d comprises two left and right edge regions from which do not protrude from hooks and a central region 9d from which protrude hooks 10.
- the central region 9d with hooks is delimited by two end edges left and right which in the figure, in section CD, forms two end points Pgd10 and Pdd10, respectively left and right, of the central region 9d.
- the webs 5g, 5d with hooks are each fixed by gluing, thermal lamination, ultrasonic welding or the like from the lower face of the base strip 6g, 6d to the upper face of the upper nonwoven layer 2.
- the nonwoven element with hooks consisting of the two layers 1 and 2 of nonwoven and of the two webs 5g and 5d with hooks, as well as possibly the adhesive interposed between them
- a zone of first rigidity which corresponds to the rigidity of the two layers 1 and 2 of nonwoven taken alone, that is to say in the two regions to the left of the web 5g with hooks and to the right of the web 5d with hooks and in the region between the two webs 5g and 5d, which extend on the one hand from the left end edge of the two layers 1 and 2 of nonwoven to the left edge Pgg6 of the base strip 6g and on the other hand from the right edge Pdd6 of the base strip 6d to the right end edge of the two layers 1 and 2 of nonwoven, as well as between the two edges Pgd6 and Pdg6 respectively of the strips 6g, 6d basic.
- first zone which extends between the end edges Pgg6 and Pdg6 and which encompasses both the part of the two layers 1 and 2 of nonwoven which are is plumb or below these two edges and the web 5g with hooks
- second zone which extends between the end edges Pgd6 and Pdd6 and which includes both the part of the two layers 1 and 2 of nonwoven which is directly above or below these two edges and the web 5d with hooks.
- the rigidity of the first two and second areas of greater rigidity is, compared to the first rigidity, greater than the rigidity at the level of the edges without hooks. But in these two areas of different stiffness, each stiffness is however greater than the first stiffness, which corresponds to the smallest stiffness that can be defined for a zone of the nonwoven element.
- the web 5d with hooks is on top of the elastic laminate and above the elastic film 3, and the edge or end point Pdg6 of the web 5d with hooks is at the plumb with the elastic film 3, while the edge or end point Pgg6 of the web 5d with hooks is not directly above the elastic film 3 (or is cantilevered from the latter) and in particular is at plumb with a point at a distance, in the transverse direction, from the elastic film 3.
- the web 5d with hooks overlaps the left end point Pg3 of the elastic film 3.
- the web 5g with hooks is located on top of the elastic laminate and above the elastic film 3, and the edge or end point Pgd6 of the web 5g with hooks is at the plumb with the elastic film 3, while the edge or end point Pdd6 of the web 5g with hooks is not directly above the elastic film 3 (or is cantilevered from the latter) and in particular is at plumb with a point at a distance, in the transverse direction, from the elastic film 3.
- the web 5g with hooks overlaps the right end point Pd3 of the elastic film 3.
- the edge or end point Pdg6 of the first zone of greatest stiffness of the non-woven element is directly above the elastic film 3, while the edge or point Pgg6 d the end of the first zone of greatest stiffness is not directly above the elastic film 3 (or is cantilevered from the latter) and in particular is directly below a point at a distance, in the transverse direction, of the elastic film 3.
- the first zone of greatest stiffness of the nonwoven element overlaps the left end point Pg3 of the elastic film 3.
- the edge or end point Pgd6 of the second zone of greatest stiffness of the non-woven element is directly above the elastic film 3, while the edge or point Pdd6 d end of the second zone greater rigidity is not directly in line with the elastic film 3 (or is cantilevered from the latter) and in particular is in line with a point at a distance, in the transverse direction, from the film 3 elastic.
- the second zone of greatest stiffness of the nonwoven element overlaps the right end point Pd3 of the elastic film 3.
- the central hooked regions 9g, 9d do not overlap any point or edge of the elastic film 3, remaining in their entirety in line with the zone extending to the outside. elastic film 3.
- Each leg 110g with a large left side is delimited by an upper cutting line 120s inclined with respect to both the MD direction and the CD direction, a lower cutting line 120i, inclined with respect to the MD direction and to the CD direction, the angles of inclination with respect to the CD direction of the two cutting lines 120s and 120i being of the same value but of opposite signs, so that each tabs 110g is further delimited by two lines extending the along the left and right edges of the laminate with the 130g line extending along the left edge of the 110g long left side tab extending, taking into account the inclinations of both 120s and 120i cut lines, over a greater distance as line 130d extending along the right edge of the laminate.
- Each tab 110d with a large right side is delimited by an upper cutting line 140s inclined with respect to both the MD direction and the CD direction, a lower cutting line 140i, inclined with respect to the MD direction and to the CD direction, the angles of inclination with respect to the CD direction of the two cutting lines 140s and 140i being of the same value but of opposite signs, so that each tabs 110d is further delimited by two lines extending the along the left and right edges of the laminate with line 150s extending along the right edge of the long side tab 110d straight extending, taking into account the inclinations of the two cutting lines 140s and 140i, over a greater distance than the line 150g extending along the right edge of the laminate.
- Each 120s die line is also a 140i die line and vice versa.
- Each 120i die line is also a 140s die line and vice versa.
- This cutout is specific for producing laminates that can be attached to the frame of the layer according to the teachings of document WO2015150709_A1_in the name of the applicant, a hooked area being attached to the frame and then deformed, the other area of the other side, being used for hook-and-loop fastening.
- FIGS. 10A and 10B another embodiment of the invention is shown.
- the arrangement is identical to that shown in FIGS. 9A and 9B, except for the fact that in this embodiment the two webs with hooks each have only one edge zone on the side opposite to the elastic film 3, the hook region of each hooked web extending from the single edge area on the opposite side to the edge of the hooked web on the elastic film 3 side.
- the hook region also overlaps the respective edge of the elastic film 3 overlapped by the respective hook web.
- FIGs 11 A and 11 B there is shown another embodiment of the invention.
- the arrangement is identical to that shown in Figures 9A and 9B, except that in this embodiment the hooks extend over the entire width of each hooked web, which thus does not have no selvage.
- the hook region also overlaps the respective edge of the elastic film 3 overlapped by the respective hook web.
- the central region of hooks is made up a row extending in the MD direction of discontinuous islands separated from one another by separation regions without hooks.
- FIG. 12A and 12B another embodiment of the invention is shown.
- the elastic laminate shown therein in section along the CD direction extends perpendicularly to FIG. 12A over a very long length (the laminate is intended to be rolled up) and over a given width L of the laminate.
- the elastic hook laminate comprises an elastic laminate which has a lower nonwoven layer 1, an upper nonwoven layer 2 and, interposed between the two upper and lower nonwoven layers, two elastic films each of a size. width The smaller than the width L of the laminate, the sum of the two widths (here the two films have the same width Le, but could be of different widths) also being less than the width L of the laminate.
- the rigidity of each layer 1 and 2 of nonwoven is constant over its entire width in the CD direction.
- the elastic hook laminate also has four left and right hooked webs 5g, 5d, 5'g, 5'd each consisting of a respective left and right base strip 6g, 6'g, 6d, 6'd of each. from which protrude hooks 10.
- a nonwoven hook element is thus formed by the assembly consisting of the upper nonwoven layer 2 and the webs 5g, 5d, 5'g, 5'd with hooks.
- Each elastic film is fixed respectively on the top and on the bottom to the two layers 1 and 2 of nonwoven, for example by glue, in particular strips of glue which are not necessarily continuous and can in particular be produced in the form dots of glue or lines of glue.
- glue and / or possibly additional reinforcing elements (not shown in the figures).
- Each elastic film extends between two left and right end edges which in Figure 12A, in CD section, form two end points, left and right respectively, of each elastic film.
- the base strip 6g of the web 5g with hooks extends between two left and right end edges which in FIG. 12A, in CD section, form two end points, respectively left and right, of the 6g base band.
- the base strip 6g comprises two left and right edge regions from which do not protrude from hooks and a central region 9g from which protrude hooks 10.
- the central region 9g with hooks is delimited by two end edges left and right which in the figure, in CD section, forms two end points, left and right respectively, of the central region 9g.
- the base strip 6d of the web 5d with hooks extends between two left and right end edges which in the figure, in CD section, form two end points Pgd6 and Pdd6, left and right respectively, of the basic 6d band.
- the base strip 6d comprises two left and right edge regions from which do not protrude from hooks and a central region 9d from which protrude hooks.
- the central hooked region 9d is delimited by two left and right end edges which in FIG. 12A, in section CD, form two end points, left and right respectively, of the region
- the webs 5g, 5d with hooks are each fixed by gluing, thermal lamination, ultrasonic welding or the like of the lower face of the base strip 6g, 6d to the upper face of the upper nonwoven layer 2.
- the base strip 6'g of the web 5'g with hooks extends between two left and right end edges which in the figure, in CD section, forms two end points, left and right respectively. , of the base 6'g tape.
- the base 6'g strip has two left and right edge regions 7'g and 8'g from which no hooks protrude and a central region 9'g from which hooks protrude.
- the central hooked region 9'g is delimited by two left and right end edges which in the figure, in CD section, form two end points, left and right respectively, of the central region 9'g.
- the base strip 6'd of the web 5'd with hooks extends between two left and right end edges which in the figure, in CD section, form two end points, left and right respectively. , of the base 6'd band.
- the base strip 6'd comprises two left and right edge regions from which no hooks protrude and a central region 9'd from which hooks protrude.
- the central region 9'd with hooks is delimited by two left and right end edges which in the figure, in section CD, form two end points, respectively left and right, of the central region 9'd.
- the webs 5'g, 5'd with hooks are each fixed by gluing, thermal lamination, ultrasonic welding or the like from the underside of the base strip 6'g, 6'd to the upper face of the upper non-woven layer 2.
- the nonwoven element with hooks consisting of the two layers 1 and 2 of nonwoven and of the four webs 5g, 5'g, 5d and 5'd with hooks, as well as possibly layers of adhesive interposed between them
- a zone of first rigidity which corresponds to the rigidity of the two layers 1 and 2 of nonwoven taken alone, that is to say in the two regions to the left of the web 5g hooked and to the right of the hooked web 5'd and in the regions between webs 5g and 5d, between webs 5d and 5'g and between webs 5'g and 5'd.
- first zone which includes both the web 5g and the part of the layers 1 and 2 of nonwoven which is located below the web 5g with hooks
- second zone which encompasses both the web 5d and the part of the two layers 1 and 2 of nonwoven which is located below the web 5d with hooks
- third zone which includes both the web 5'g and the part of the two layers 1 and 2 of nonwoven which is located below the web 5'g with hooks
- fourth zone which includes both the web 5'd and the part of the two layers 1 and 2 of non- woven fabric that sits below the 5'd hooked web.
- the rigidity of the four first, second, third and fourth zones of greater rigidity is, with respect to the first rigidity, greater than is the rigidity at the level of the selvedges without hooks. But in these areas of different stiffness, each stiffness is however greater than the first stiffness, which corresponds at the smallest stiffness that can be defined for an area of the nonwoven element.
- the web 5g with hooks is located on top of the elastic laminate and above the elastic film 3, and the right edge or end point of the web 5g with hooks, respectively of the first zone of greatest stiffness of the nonwoven element with hooks, is located directly above the elastic film 3, while the other edge or left end point of the web 5g with hooks, respectively of the first zone greater rigidity is not directly in line with the elastic film 3 (or is cantilevered from the latter) and in particular is in line with a point at a distance, in the transverse direction, from the film 3 elastic.
- the web 5g with hooks, respectively the first zone of greatest rigidity of the nonwoven element with hooks overlaps the left end point of the elastic film 3.
- the web 5d with hooks is located on top of the elastic laminate and above the elastic film 3, and the left edge or end point of the web 5d with hooks, respectively of the second area of greatest stiffness of the nonwoven element with hooks, is located directly above the elastic film 3, while the right edge or end point of the web 5d with hooks, respectively of the second additional area high rigidity, is not directly above the elastic film 3 (or is cantilevered from the latter) and in particular is directly above a point at a distance, in the transverse direction, from the elastic film 3 .
- the web 5d with hooks, respectively the second zone of greatest stiffness of the non-woven element with hooks overlaps the right end point of the elastic film 3.
- the web 5'g with hooks is on top of the elastic laminate and above the elastic film 4, and the right edge or end point of the web 5'g with hooks, respectively the third zone of greatest stiffness of the nonwoven element with hooks, is located directly above the elastic film 4, while the other edge or left end point of the web 5'g with hooks, respectively of the first zone of greater rigidity, is not directly in line with the elastic film 4 (or is cantilevered from the latter) and in particular is in line with a point at a distance, in the transverse direction, of the elastic film 4.
- the 5'g tablecloth with hooks, respectively the third zone of greatest stiffness of the nonwoven hook element overlaps the left end point of the elastic film 4.
- the web 5'd with hooks is on top of the elastic laminate and above the elastic film 4, and the left edge or end point of the web 5'd with hooks, respectively of the fourth zone of greatest stiffness of the nonwoven element with hooks, is directly above the elastic film 4, while the right edge or end point of the web 5'd with hooks, respectively of the fourth zone of greatest stiffness, is not directly above the elastic film 4 (or is cantilevered from the latter) and in particular is directly above a point at a distance, in the direction transverse, elastic film 4.
- the web 5′d with hooks, respectively the fourth zone of greatest stiffness of the nonwoven hooked element overlaps the right end point of the elastic film 4.
- the central hooked regions do not overlap any point or edge of the elastic films 3 and 4, remaining in their entirety in line with the zone extending outside the. 3 and 4 elastic films.
- FIG. 13A and 13B there is shown yet another embodiment of the invention.
- the elastic laminate which is represented therein in section in the direction CD extends perpendicularly to FIG. 13A over a very long length (the laminate is intended to be rolled up) and over a given width L of the laminate.
- the elastic hook laminate comprises an elastic laminate which has a lower non-woven layer 1, an upper non-woven layer 2 and, interposed between the two upper and lower non-woven layers, an elastic film of the same width. than the width L of the laminate.
- the rigidity of each layer 1 and 2 of nonwoven is constant over its entire width in the CD direction.
- the elastic hooked laminate also has a hooked web, centrally disposed on the upper nonwoven layer and made up of a base strip 6 from which hooks 10 protrude.
- a nonwoven hook element is thus formed by the assembly consisting of the upper nonwoven layer 2 and the web 5 with hooks.
- the elastic film is fixed respectively on the top and on the bottom to the two layers 1 and 2 of nonwoven, for example by glue, in particular strips of glue which are not necessarily continuous and can in particular be produced in the form of dots of glue or lines of glue.
- the base strip 6 of the hooked web 5 extends between two left and right end edges which, in CD cut, forms two end points, left and right respectively, of the base strip.
- the base strip 6 comprises two left and right edge regions 7g and 7d from which do not project hooks and a central region 9 from which project hooks 10.
- the central hook region 9 is delimited by two end edges. left and right which in the figure, in section CD, forms two end points, left and right respectively, of the central region 9.
- the web 5 with hooks is fixed by gluing, thermal lamination, ultrasonic welding or the like from the underside of the base strip 6 to the upper face of the upper nonwoven layer 2.
- the nonwoven element with hooks consisting of the two layers 1 and 2 of nonwoven and of the web 5 with hooks, as well as optionally of the adhesive layer interposed between them
- a zone of first rigidity which corresponds to the rigidity of the two layers 1 and 2 of nonwoven taken alone, that is to say in the two regions to the left and to the right of the web 5 with hooks, which s' extend on the one hand from the left end edge of the two layers 1 and 2 of nonwoven to the left edge of the base strip 6 and on the other hand from the right edge of the base strip 6 to the edge end right of the two layers 1 and 2 of nonwoven.
- a zone of greater stiffness which includes both the part of the two layers 1 and 2 of nonwoven which is located below the web 5 with hooks and the web 5 itself.
- the rigidity of the zone of greatest rigidity is, with respect to the first rigidity, greater than the rigidity at the level of the edges 7g and 7d without hooks. But in these two areas of different stiffness, each stiffness is however greater than the first stiffness, which is the smallest stiffness that can be defined for an area of the nonwoven element.
- the web 5 with hooks is located on top of the elastic laminate and above the elastic film, and the edge or end point of the web 5 with hooks is located directly above the elastic film. elastic film.
- the central hooked region 9 also overlaps the elastic film.
- FIG. 13B there is shown the laminate seen from above over part of its length. Dotted lines represent cutting lines for cutting the laminate into a succession of hooked tabs, left and right respectively.
- Each tab has a substantially rectangular base portion and a tongue portion projecting laterally from the base portion.
- the entire central hook region 9 is in the tab portion 13g, 13d and the elastic film extends over the entire base portion.
- the elastic film extends on the one hand over the whole of the base part, and on the other hand a part of the elastic film also encroaches in each tab part.
- FIGS 14A and 14B there is shown another embodiment of the invention.
- the arrangement is identical to that shown in Figures 13A and 13B, except that in this embodiment realization the hooks extend over the entire width of the web with hooks, which thus does not include a selvedge.
- FIGS. 13A and 13B there is shown yet another embodiment of the invention.
- the hooks are distributed along zones in the form of discontinuous islands and not, as in FIGS. 13A and 13B, following a continuous strip. in the MD direction.
- the central hook region consists of a row extending in the MD direction of discontinuous islands separated from each other by separation regions without hooks.
- Figures 16A and 16B there is described a laminate identical to that of Figures 13A and 13B, except that the web with hooks is arranged offset in the direction CD (to the left in the figures) with respect to in the middle of the laminate.
- Figures 17A and 17B there is described a laminate identical to that of Figures 16A and 16B, except that the web with hooks has only one selvedge, on the side of the edge of the most laminate. close to the tablecloth.
- Figures 18A and 18B there is described a laminate identical to that of Figures 16A and 16B, except that the hooked web does not have a selvage, the hooked region extending over the entire length. extension in width of the tablecloth with hooks.
- Figures 19A and 19B there is described a laminate identical to that of Figures 16A and 16B, except that the hooks are distributed following areas in the form of discontinuous islands and not, as in the figures 16A and 16B, following a continuous strip in the MD direction.
- the central region of hooks consists of a row extending in the MD direction of discontinuous islands separated from one another by separation regions without hooks.
- Figures 20A and 20B there is shown a laminate identical to that of Figures 9A and 9B, except that the elastic film extends across the width of the laminate.
- Figures 22A and 22B there is described a laminate identical to that of Figures 20A and 20B, except for the fact that the webs with hooks do not have a selvage, the respective hook regions extending over the entire length. the extension in width of the respective hooked web.
- Figures 23A and 23B there is disclosed a laminate identical to that of Figures 12A and 12B, except that the elastic film extends across the width of the laminate.
- FIG. 24 there is shown an embodiment identical to that of FIGS. 5A and 5B, except for the fact that the lower nonwoven layer 1 ′ comprises a reinforced region 30.
- the upper nonwoven layer 2 has a constant rigidity over the entire width CD, while the nonwoven layer 1 'comprises on the one hand two first left and right areas of the lowest first rigidity extending from the edge. left, respectively right, of the laminate to the left, respectively right edge of the reinforced region 30, and on the other hand a second zone corresponding to the reinforced region which has a greater rigidity.
- the region 30 reinforced, for example by calendering, in particular hot, extends entirely under the web with hooks, being disposed centrally with respect to the latter.
- the reinforced region 30 does not overlap the edge of the elastic film overlapped by the base band 6.
- the edge of the reinforced region on the elastic film side is substantially at a distance, measured in the CD direction, which is. zero of the edge of the elastic film overlapped by the base strip and the web with hooks.
- FIG 25 there is shown an embodiment identical to that of Figures 5A and 5B, except that the upper nonwoven layer 2 ′ has a reinforced region 31.
- the lower nonwoven layer 1 ′ has a constant rigidity over the entire width CD
- the upper nonwoven layer 2 ′ comprises on the one hand two first left and right areas of the lowest first rigidity extending from the left edge, respectively right, of the laminate to the left, respectively right edge of the reinforced region 31, and on the other hand a second zone, corresponding to the reinforced region 31, which has greater rigidity.
- the region 31 reinforced for example by calendering, in particular hot, extends partly under the web 5 with hooks, as well as partly under the central region 9 with hooks.
- the reinforced region 31 overlaps the edge of the elastic film 3 overlapped by the base band 6.
- the area of greatest stiffness of the nonwoven hook member consists of the reinforced region 31 of the layer 2. 'of upper nonwoven, the part of the upper nonwoven layer 2' covered by the hooked web, the hooked web and the part of the lower layer 1 'extending below the region 31 and strip 5, as well as layers of adhesive or intermediate glue.
- This area of greater rigidity overlaps a lateral end point of the elastic film 3, while the other lateral end point of the elastic film is not overlapped by the zone of greatest stiffness or the second zone of greatest stiffness of the upper nonwoven layer.
- Figure 26 there is shown an embodiment identical to that of Figure 25, except for the fact that the web 5 with hooks on the one hand does not have a border and on the other hand, although being disposed above the elastic film 3, does not overlap the edge of the elastic film 3.
- the area of greatest stiffness of the hooked nonwoven element consists of the reinforced region 31 of the upper nonwoven layer 2 ', of the part of the nonwoven layer 2' upper covered by the hooked web, the hooked web and the portion of the lower layer 1 'extending below region 31 and web 5, as well as intermediate adhesive or glue layers.
- Figure 27 there is shown an embodiment identical to that of Figure 24, except for the fact that the web 5 with hooks on the one hand does not have an edge and on the other hand, although being disposed above the elastic film 3, does not overlap the edge of the elastic film 3.
- the area of greatest stiffness of the hooked nonwoven element consists of the reinforced region of the lower nonwoven layer 1 ', the part of the upper nonwoven layer 2. covered by the hooked web 5, the hooked web, the remainder of the lower layer 1 'extending below the web 5, the remainder of the upper layer 2 extending above the reinforced region 30, thus as intermediate layers of adhesive or glue.
- FIG. 28 there is shown an embodiment of an elastic laminate according to the invention.
- the elastic hook laminate has an elastic laminate which has two upper left and right nonwoven layers 201 g and 201 d and a lower nonwoven layer 1 ', and two elastic films 3 and 4 which each extend in the direction CD to a width less than the width of the laminate.
- the elastic hook laminate further comprises a hook web 5.
- the lower nonwoven layer 1 ' extends across the entire width in the CD direction of the laminate, having constant rigidity.
- the two layers 201 g and 201 d each extend over a width in the CD direction less than the total width of the laminate, and the sum of their two widths is less than the width of the laminate so that a so-called non-woven interstice is formed between them on the upper part of the laminate.
- the two layers of nonwoven each have a respective constant rigidity, in particular have the same constant rigidity.
- the two elastic films 3 and 4 are fixed respectively on the top and on the bottom to the layers 1 'and 201 g, respectively 201 d of non-woven material, for example by glue, in particular strips of glue which do not are not necessarily continuous and can in particular be produced in the form of glue dots or lines of glue or by thermal and / or direct (hot) lamination.
- the elastic film 3 extends between two left and right end edges which in the figure form two end points Pg3 and Pd3, respectively left and right, of the elastic film 3.
- the elastic film 4 extends between two left and right end edges which in the figure, in CD section, form two end points Pg4 and Pd4, respectively left and right, of the elastic film 4. There is thus defined between the two elastic films a so-called elastic film gap which extends between the points Pd3 and Pg4.
- the base strip 6 of the web 5 with hooks extends between two left and right end edges which in the figure, in CD section, form two end points Pg6 and Pd6, respectively left and right, of the base band, and therefore also of the reinforcing element.
- the base strip 6 has two left and right edge regions from which do not protrude hooks (or without hooks) and a central region from which protrude hooks.
- the central hooked region is delimited by two left and right end edges which in the figure, in section CD, form two end points Pg10 and Pd10, respectively left and right, of the central region.
- the web 5 with hooks is fixed by gluing, thermal lamination, ultrasonic welding or the like of the underside of the base strip 6 to the upper faces of the upper nonwoven layers 201 g and 201 d.
- the non-woven element 8 with hooks it is possible to define a zone of first rigidity, which corresponds to the rigidity of the three layers 1 ′, 201 d, 201 g of non-woven material taken alone with the adhesive between them, that is to say in both regions to the left and to the right of the web 5 with hooks, which extend on the one hand from the left end edge of the layer 201 g of nonwoven to the left edge Pg6 of the base strip 6 and d 'on the other hand from the right edge Pd6 of the base strip 6 up to the right end edge of the nonwoven layer 201 d.
- a zone of greater rigidity which extends between the end edges Pg6 and Pd6 and which includes both the part of the layers 201 g and 201 d of nonwoven which are located below the web. 5 with hooks.
- the rigidity of the zone of greatest rigidity is, with respect to the first rigidity, greater than the rigidity at the level of the edges 7g and 7d without hooks.
- each stiffness is however greater than the first stiffness, which corresponds to the smallest stiffness that can be defined for a zone of the non-woven element 8.
- the edge or end point Pg6 of the reinforcing element in the form of the web 5 with hooks is directly above the elastic film 3, while the edge or point Pd6 d the end of the web with hooks is not in line with the elastic film 3 (or is cantilevered from the latter) and in particular is in line with a point at a distance, in the transverse direction, elastic film 3.
- the web 5 with hooks overlaps the right end point Pd3 of the elastic film 3.
- the edge or end point Pd6 of the web 5 with hooks is directly above the elastic film 4, while the edge or end point Pg6 of the web 5 with hooks n 'is not directly above the elastic film 4 (or is cantilevered therefrom) and in particular is directly above a point at a distance, in the transverse direction, from the elastic film 4.
- the web 5 with hooks overlaps the left end point Pg4 of the elastic film 4.
- the edge or end point Pg6 of the zone of greatest rigidity of the non-woven element 8 with hooks is directly above the elastic film 3, while the edge or point End Pd6 of the zone of greatest rigidity is not directly above the elastic film 3 (or is cantilevered from the latter) and in particular is directly below a point at a distance, in the transverse direction, of the elastic film 3.
- the area of greatest rigidities of the non-woven element 8 overlaps the right end point Pd3 of the elastic film 3.
- the edge or end point Pd6 of the area of greatest stiffness of the non-woven element 8 is directly above the elastic film 4, while the edge or point Pg6 d the end of the zone of greatest rigidity is not directly in line with the elastic film 4 (or is cantilevered from the latter) and in particular is in line with a point at a distance, in the direction transverse, elastic film 4.
- the area of greatest stiffness of the non-woven element 8 overlaps the left end point Pg4 of the elastic film 4.
- the central region 9 with hooks does not overlap any point or edge of the two elastic films 3 and 4, remaining entirely in line with the zone extending between the two films 3 and 4. 4 left and right elastic.
- the web 5 with hooks is fixed by two end parts of its lower face to a respective end part of the upper surfaces of the two layers of nonwoven, so that the web 5, and in particular the strip of the web 5 forms a bridge between the two nonwovens 201 g and 201 d, on top of the laminate.
- the two elastic films are each fixed by a major part of their respective upper face to the lower face of one of the two layers of nonwoven, the left elastic film 3 being fixed to the lower face of the layer of nonwoven. 201 g left nonwoven, while the right elastic film 4 being attached to the underside of the left 201 g nonwoven layer. An inner end portion of each elastic 3, 4 protrudes beyond the respective upper nonwoven layer to which it is attached to lie in the gap between the two nonwoven layers, directly below the web 5 with hooks.
- FIG. 29 there is shown an embodiment of an elastic laminate with hooks according to the invention.
- the elastic hooked laminate is substantially identical to that of Figure 28, except that the web 5 with hooks, instead of being attached to the two upper left and right upper nonwoven layers 201 g and 201 d on either side of the non-woven gap, is on top of the laminate by being attached directly to it (excluding a layer of glue, adhesive, welding or fusion material or the like) on the two end portions of the elastic films 3 and 4 which protrude into the non-woven gap, the web with hooks covering the elastic film gap formed between the two elastic films.
- the base strip 6 of the web 5 with hooks extends between two left and right end edges (which in the figure, in section CD, form two points Pg6 and Pd6 d ' end, respectively left and right, of the base strip) over substantially all or all of the gap between the two upper nonwoven layers.
- the nonwoven element 8 with hooks it is possible to define a zone of first rigidity, which corresponds to the rigidity of the three layers 1 ′, 201 d, 201 g of nonwoven taken alone with the adhesive between they, that is to say in the two regions to the left and to the right of the web 5 with hooks, which extend on the one hand from the left end edge of the layer 201 g of nonwoven as far as at the left edge Pg6 of the base strip 6 and on the other hand from the right edge Pd6 of the base strip 6 up to the right end edge of the layer 201 d of nonwoven.
- the edge or end point Pg6 of the reinforcing element in the form of the web 5 with hooks is located directly (apart from the glue or the like) directly above the elastic film 3, while the edge or end point Pd6 of the reinforcing element in the form of the web with hooks is not directly above the elastic film 3 (or is cantilevered from the latter) and in particular is directly above a point at a distance, in the transverse direction, from the elastic film 3.
- the reinforcing element in the form of the web 5 with hooks overlaps the end point Pd3 right of the elastic film 3, being directly (apart from the glue or the like) in contact with it.
- the edge or end point Pd6 of the reinforcing element in the form of the web 5 with hooks is located directly (apart from the glue or the like) directly above the elastic film 4, while the edge or end point Pg6 of the reinforcing element in the form of the web 5 with hooks is not directly above the elastic film 4 (or is cantilevered therefrom) and in particular is directly above a point at a distance, in the transverse direction, from the elastic film 4.
- the reinforcing element in the form of the web 5 with hooks overlaps the left end point Pg4 of the elastic film 4, being directly (apart from the glue or the like) in contact with it.
- the edge or end point Pg6 of the area of greatest stiffness of the non-woven element 8 with hooks is directly above the elastic film 3, while the edge or point End Pd6 of the zone of greatest rigidity is not directly above the elastic film 3 (or is cantilevered from the latter) and in particular is directly below a point at a distance, in the transverse direction, of the elastic film 3.
- the area of greatest stiffness of the nonwoven element 8 overlaps the right end point Pd3 of the elastic film 3.
- the edge or end point Pd6 of the zone of greatest stiffness of the non-woven element 8 is directly above the elastic film 4, while the edge or point Pg6 d the end of the zone of greatest rigidity is not directly in line with the elastic film 4 (or is cantilevered from the latter) and in particular is in line with a point at a distance, in the direction transverse, elastic film 4.
- the area of greatest stiffness of the non-woven element 8 overlaps the left end point Pg4 of the elastic film 4.
- the central region 9 with hooks does not overlap any point or edge of the two elastic films 3 and 4, remaining in its entirety in line with the zone extending between the two left and right elastic films 3 and 4.
- Figure 30 there is shown an embodiment substantially identical to that of Figure 27, except for the fact that it is provided, for the lower nonwoven layer, replacing the reinforced zone 30, a reinforcing element in the form of a stiffening reinforcing strip 32, for example of a non-elastic thermoplastic material, such as Polyethylene or Polypropylene, which is fixed on the upper face of the lower layer 1 ” , for example by a layer of glue or by welding, in particular ultrasonic, thermal, or the like.
- the upper nonwoven layer 2 has a constant rigidity over the entire width CD, while the nonwoven layer 1 ”comprises on the one hand two first left and right areas of the lowest first rigidity extending from the edge. left, respectively right, of the laminate to the left, respectively right edge of the reinforcement strip 32, and on the other hand a second zone corresponding to the reinforcement strip which has greater rigidity.
- the area of greatest stiffness of the hooked nonwoven element consists of the reinforcing strip 32, the lower nonwoven layer region 1 ”at which the web 32 of reinforcement is attached, from the part of the upper nonwoven layer 2 covered by the hooked web 5, from the hooked web, from the rest of the lower 1 ”layer extending under the web 5, from the rest of the upper layer 2 extending above the reinforcing strip 32, as well as the intermediate layers of adhesive or glue.
- This area of greater stiffness overlaps a side end point of the elastic film 3, while the other side end point of the elastic film is not overlapped by the area of greater stiffness.
- the web 5 with hooks extends between two lateral end points respectively left Pg5 and right Pd5 and the reinforcing strip 32 between two lateral end points respectively left Pg32 and right Pd32, so that the reinforcing element extends, in the section CD shown, between the two lateral end points respectively Pg32 left and Pd5 right.
- One (Pg32) of two points (Pg32, Pd5) of the lateral end of the reinforcing element is plumb with a point of the elastic film 3.
- the other point Pd5 of the lateral end of the reinforcing element is not plumb with 'a point of the elastic film (or is cantilevered from the elastic film).
- one (Pg5) of the two lateral end points Pg5, Pd5 of the web 5 is directly above a point of the reinforcement strip 32, while the other point Pd5 is not not directly above a point of the reinforcement strip 32.
- the hooked web 5 is located above the elastic film but no point of the hooked web 5 is directly above a point of the elastic film.
- FIG. 31 there is shown an embodiment identical to that of Figure 26, except for the fact that it is provided for the lower non-woven layer, replacing the reinforced zone 30, a reinforcing element in the form of a reinforcing strip 33 identical to the reinforcing strip 32 of FIG. 30, which is fixed to the underside of the upper non-woven layer 2 ”, for example by a layer of glue or by welding, in particular ultrasonic, thermal, or the like.
- the lower nonwoven layer 1 has a constant rigidity over the entire width CD
- the upper nonwoven layer 2 comprises on the one hand two first left and right zones of first lower rigidity extending from the bottom. left edge, respectively right, of the laminate to the left edge, respectively right edge of the reinforcement strip 33, and on the other hand a second zone corresponding to the reinforcement strip 33 which has greater rigidity.
- the area of greatest stiffness of the nonwoven hooked element consists of the web 5 with hooks, the reinforcing strip 33, the part of the layer 2 ”of non- upper woven reinforced by the reinforcing strip 33 and by the web 5 with hooks, and by the part of the lower layer 1 extending under the reinforcing strip 33 and the strip 5, as well as layers of adhesive or glue intermediaries.
- This area of greater stiffness overlaps a side end point of the elastic film 3, while the other side end point of the elastic film is not overlapped by the area of greater stiffness.
- the web 5 with hooks extends between two lateral end points respectively left Pg5 and right Pd5 and the reinforcement strip 33 between two lateral end points respectively left Pg33 and right Pd33, so that the reinforcing element extends, in the cut CD shown, between the two lateral end points respectively Pg33 left and Pd5 right .
- One (Pg33) of the two lateral end points (Pg33, Pd5) of the reinforcement element is located directly above a point of the elastic film 3.
- the other point Pd5 of the lateral end of the The reinforcing element is not plumb with a point of the elastic film (or is cantilevered from the elastic film).
- the hooked web 5 is above the elastic film but no point of the hooked web 5 is plumb with a point of the elastic film.
- Figure 32 there is shown an embodiment substantially identical to that of Figure 26, the only difference being the addition of a reinforcing element in the form of a reinforcing strip 34, identical to the reinforcing strips 32 and 33 of Figures 30 and 31, to increase the rigidity of the lower layer 1 ”', for example by fixing by a layer of glue or by welding, in particular ultrasonic, thermal, or the like.
- the upper nonwoven layer 2 ′ comprises on the one hand two first left and right zones of the first lowest rigidity extending from the left edge, respectively right, of the laminate to the left edge, respectively right of the region.
- the lower nonwoven layer 1 comprises on the one hand two first left and right zones of first rigidity. lower extending from the left edge, respectively right, of the laminate to the left edge, respectively right of the reinforcing strip 34, and on the other hand a second zone corresponding to the reinforcing strip 34 which has a greater rigidity .
- the zone of greatest stiffness of the nonwoven element with hooks consists of the web 5 with hooks, of the reinforced zone 31 of the upper layer 2 ', of the reinforcing strip 34. , the region of the lower nonwoven layer 1 ”'at which the reinforcing strip 34 is attached, the part of the upper nonwoven layer 2' covered by the hooked web 5, the remainder of the lower 1 ”'layer extending under the strip 5 and under the reinforced zone 31, the remainder of the upper layer 2 'extending above the reinforcing strip 34, as well as intermediate layers of adhesive or glue.
- This area of greater stiffness overlaps a side end point of the elastic film 3, while the other side end point of the elastic film is not overlapped by the area of greater stiffness.
- two reinforcing elements are provided, namely the reinforced zone 31 and the reinforcing strip 34.
- the stiffness of an area or region of an element such as a web, a laminate, a nonwoven layer or the like can for example be measured by the method described below.
- Stiffness can be measured using a constant rate of elongation of an elongation tensile tester, including a computer interface (a suitable instrument is an MTS Alliance under TestWorks 4 software, available from MTS Systems. Corp, Eden Prairie, Minnesota) equipped with a 10N load cell. The tests are carried out at 23 ° C + - 2 ° C and at about 50% to + -2% relative humidity.
- the tester comprises two lateral clamping jaws, for example made of stainless steel, defining a gap between them, and a plunger blade, made of a "light" material such as aluminum, arranged centrally at mid-distance between the jaws at the bottom. above the gap.
- the sample is positioned so that two end portions of the region whose stiffness is to be investigated from a point in the center are each clamped in one of the jaws and so that the point of the sample where the we want to measure the rigidity is located exactly below the plunger blade.
- the software is programmed to calculate the maximum peak curvature force and the stiffness (N / m) of the constructed curve giving the force (N) as a function of the elongation (m). Stiffness is calculated as the slope of the flexural force / elongation curve for the linear region of the curve using a minimum line segment of at least 25% of the total peak flexural force to calculate the slope. If the width of the element is not 13mm, normalize the actual width to 13mm and calculate the corresponding stiffness and peak bending force by a rule of three.
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Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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FR1907472A FR3098144B1 (fr) | 2019-07-04 | 2019-07-04 | Stratifié élastique à crochets |
PCT/EP2020/068706 WO2021001492A1 (fr) | 2019-07-04 | 2020-07-02 | Stratifié élastique à crochets |
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EP3993995A1 true EP3993995A1 (fr) | 2022-05-11 |
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EP20734981.2A Pending EP3993995A1 (fr) | 2019-07-04 | 2020-07-02 | Stratifié élastique à crochets |
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US (1) | US20220233366A1 (fr) |
EP (1) | EP3993995A1 (fr) |
JP (1) | JP2022538552A (fr) |
CN (1) | CN114423597B (fr) |
BR (1) | BR112021022633A2 (fr) |
FR (1) | FR3098144B1 (fr) |
WO (1) | WO2021001492A1 (fr) |
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EP4059482A1 (fr) * | 2021-03-19 | 2022-09-21 | Fameccanica.Data S.p.A. | Stratifié élastique continu extensible transversalement et son procédé de fabrication |
EP4059483A1 (fr) * | 2021-03-19 | 2022-09-21 | Fameccanica.Data S.p.A. | Stratifié élastique continu extensible transversalement et son procédé de fabrication |
Family Cites Families (7)
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ES2299479T3 (es) * | 2000-03-14 | 2008-06-01 | Velcro Industries B.V. | Cierre de gancho y presilla. |
US8080198B2 (en) * | 2006-10-20 | 2011-12-20 | Avery Dennison Corporation | Elastic diaper component |
FR2943356B1 (fr) | 2009-03-23 | 2011-07-08 | Aplix Sa | Stratifie elastique et non tisse renforce |
FR2965212B1 (fr) * | 2010-09-23 | 2012-09-28 | Aplix Sa | Stratifie elastique a resistance aux efforts renforcee |
FR3019445B1 (fr) | 2014-04-03 | 2019-04-12 | Aplix | Procede d'assemblage d'au moins deux ensembles et structure assemblee correspondante |
JP2016165366A (ja) * | 2015-03-09 | 2016-09-15 | モンディ・コンシューマー・パッケージング・テクノロジーズ・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング | 複合材ウェブ並びに複合材ウェブの製造方法 |
FR3053921B1 (fr) * | 2016-07-15 | 2021-06-25 | Aplix Sa | Ensemble lamine et procede de fabrication |
-
2019
- 2019-07-04 FR FR1907472A patent/FR3098144B1/fr active Active
-
2020
- 2020-07-02 EP EP20734981.2A patent/EP3993995A1/fr active Pending
- 2020-07-02 BR BR112021022633A patent/BR112021022633A2/pt unknown
- 2020-07-02 WO PCT/EP2020/068706 patent/WO2021001492A1/fr unknown
- 2020-07-02 JP JP2021576040A patent/JP2022538552A/ja active Pending
- 2020-07-02 CN CN202080048226.2A patent/CN114423597B/zh active Active
- 2020-07-02 US US17/615,187 patent/US20220233366A1/en active Pending
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CN114423597B (zh) | 2024-03-26 |
WO2021001492A1 (fr) | 2021-01-07 |
US20220233366A1 (en) | 2022-07-28 |
FR3098144B1 (fr) | 2022-01-07 |
FR3098144A1 (fr) | 2021-01-08 |
CN114423597A (zh) | 2022-04-29 |
BR112021022633A2 (pt) | 2022-01-04 |
JP2022538552A (ja) | 2022-09-05 |
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