WO2024213435A1 - Elément support pour un stratifié comportant une couche de non tissé à boucle et stratifié comportant un tel élément support - Google Patents
Elément support pour un stratifié comportant une couche de non tissé à boucle et stratifié comportant un tel élément support Download PDFInfo
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- WO2024213435A1 WO2024213435A1 PCT/EP2024/058910 EP2024058910W WO2024213435A1 WO 2024213435 A1 WO2024213435 A1 WO 2024213435A1 EP 2024058910 W EP2024058910 W EP 2024058910W WO 2024213435 A1 WO2024213435 A1 WO 2024213435A1
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- WIPO (PCT)
- Prior art keywords
- filaments
- fibers
- calendering
- nonwoven
- cylinders
- 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
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Classifications
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
- D04H3/14—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
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- 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
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- 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
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- 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
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- 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
- B32B5/22—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4282—Addition polymers
- D04H1/4291—Olefin series
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4326—Condensation or reaction polymers
- D04H1/435—Polyesters
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
- D04H1/48—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation
- D04H1/485—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation in combination with weld-bonding
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
- D04H1/48—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation
- D04H1/49—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation entanglement by fluid jet in combination with another consolidation means
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/542—Adhesive fibres
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/005—Synthetic yarns or filaments
- D04H3/007—Addition polymers
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/005—Synthetic yarns or filaments
- D04H3/009—Condensation or reaction polymers
- D04H3/011—Polyesters
Definitions
- Support element for a laminate comprising a layer of looped nonwoven fabric and laminate comprising such a support element
- the present invention relates to a support element, at least part of which is made up of a structure of individual fibers and/or filaments entangled and/or tangled with each other in a non-repetitive manner.
- the present invention also relates to a laminate comprising such a support element and a loop element, in particular a layer of loop nonwoven, comprising loops intended to cooperate with hooks of a self-gripping hook and loop fastener, the laminate being conventionally fixed, in particular glued or welded, at a central or ventral attachment zone of a diaper, also called Landing Zone or LZ, the loops of the loop element cooperating with hooks from lateral ears of the rear part of the diaper, to achieve the closure thereof.
- LZ Landing Zone
- a support element of this type consists of a film or a nonwoven.
- the film has the advantage of ensuring good gripping of the laminate, in particular by air vacuum systems, in a production line, when laying the laminate on a diaper.
- the film is not breathable, is not soft to the touch and can be difficult to weld to the diaper.
- the support elements consisting of a nonwoven layer
- they have the disadvantage of being too permeable to gases, in particular to air and water vapor, which, in a production line, makes it difficult to grip for laying the laminate on a diaper.
- the support element in the form of a nonwoven layer lacks rigidity in the MD (Machine Direction) direction and easily undergoes shrinkage (called the “neckdown” effect) in the CD (Cross Direction) direction following stretching in the MD direction.
- it is sensitive to pressure or compression, which makes it difficult to process in a production line, in particular when it comes to gripping it to position it on a diaper.
- a laminate consisting of a layer of loops and a support layer, all based on carded fibers, short fibers, the support layer, before its assembly with the layer of loops, having undergone calendering.
- the support layer after having undergone calendering between a metal roller and a cotton roller, has a density equal to 500 kg/m3. The density is calculated by dividing the surface mass by the thickness of the support layer. However, it is not indicated what pressure is applied to the support layer when measuring the thickness.
- the air permeability of each of the layers, and in particular of the support layer is equal to a maximum of 0.1 seconds according to the Gurley method.
- a nonwoven based on Spunbond filament
- the nonwoven has a density of between 250 and 400 kg/m3.
- the density is calculated by dividing the surface mass by the thickness of the support layer.
- the air permeability per unit surface mass, at a pressure of 125Pa is between 40 litres/(m 2 .s)/(g/m 2 ) and 500 litres/(m 2 .s)/(g/m 2 ), i.e. a minimum air permeability for the minimum surface mass of 150g/m 2 , of 6000 litres/(m 2 .s).
- a nonwoven fabric intended to form a support for wall paper and having a density of between 50 and 300 kg/m3 is described. However, it is not indicated how this density is measured, and in particular what pressure is applied to the support layer during the measurement.
- the present invention aims to overcome the drawbacks of the prior art by proposing a support element of the non-woven type, which is better suited to a manufacturing line, in particular which facilitates its processing and its grip for its positioning on a diaper in a manufacturing line.
- a non-woven element in particular forming a support element, comprising at least one part which is made up of a structure of fibers and/or filaments, the structure extending between an upper face and a lower face, gases, in particular air and/or water vapor, being able to pass through the structure from one face to the other, is characterized in that the density of the structure, equal to the surface mass divided by the thickness, the thickness being measured at a pressure of 0.5 kPa, after a duration of 10 seconds, in particular according to standard NF EN ISO 9073-2 Method A of February 1997, is greater than 155 kg/m3, in particular greater than 170 kg/m3, in particular greater than 200 kg/m3, in particular greater than 250 kg/m3.
- the present invention also relates to a female hook and loop fastening element, comprising a loop element, in particular a non-woven fabric, and a non-woven type support element, the support element comprising at least one part which is made up of a structure of fibers and/or filaments, the structure extending between an upper face and a lower face, gases, in particular air and/or water vapor, being able to pass through the structure from one face to the other, characterized in that:
- the density of the structure equal to the surface mass divided by the thickness, the thickness being measured at a pressure of 0.5 kPa, after a period of 10 seconds, in particular according to standard NF EN ISO 9073-2 Method A of February 1997, is greater than 155 kg/m3, in particular greater than 170 kg/m3, in particular greater than 200 kg/m3, in particular greater than 250 kg/m3.
- the air permeability of the structure measured at a pressure difference of 200Pa, is between 100 and 5000 l/m 2 /s, in particular between 100 and 3100 l/m 2 /s, for example between 500 and 3100 l/m 2 /s, in particular between 620 and 3100 l/m 2 /s.
- the invention also relates to a female hook and loop fastening element, comprising a loops, in particular a nonwoven, and a nonwoven type support element, the support element comprising at least one part which is made up of a filament structure, in particular Spunbond, the structure extending between an upper face and a lower face, gases, in particular air and/or water vapor, being able to pass through the structure from one face to the other, characterized in that:
- the density of the structure equal to the surface mass divided by the thickness, the thickness being measured at a pressure of 0.5 kPa, after a period of 10 seconds, in particular according to standard NF EN ISO 9073-2 Method A of February 1997, is greater than 155 kg/m3, in particular greater than 170 kg/m3, in particular greater than 200 kg/m3, in particular greater than 250 kg/m3.
- the invention also relates to a female hook and loop fastening element, comprising a loop element, in particular a nonwoven, and a nonwoven type support element, the support element comprising at least one part which is made up of a filament structure, in particular Spunbond, the structure extending between an upper face and a lower face, gases, in particular air and/or water vapor, being able to pass through the structure from one face to the other, characterized in that:
- the air permeability of the structure measured at a pressure difference of 200Pa, is between 100 and 5000 l/m 2 /s, in particular between 100 and 3100 l/m 2 /s.
- the invention also relates to a female hook and loop fastening element, comprising a loop element, in particular a nonwoven, and a nonwoven type support element, the support element comprising at least one part which is made up of a filament structure, in particular Spunbond, the structure extending between an upper face and a lower face, gases, in particular air and/or water vapor, being able to pass through the structure from one face to the other, characterized in that: - the structure has a surface mass of the structure, is between 3 and 50 g/m 2 , in particular between 10 and 40 g/m 2 , in particular between 15 and 30 g/m 2 ; in particular between 20 and 30 g/m 2 ; and
- the structure has undergone calendering treatment.
- the invention also relates to a non-woven type element, in particular forming a support element, comprising at least one part which is made up of a filament structure, in particular Spunbond, the structure extending between an upper face and a lower face, gases, in particular air and/or water vapor, being able to pass through the structure from one face to the other, is characterized in that:
- the density of the structure equal to the surface mass divided by the thickness, the thickness being measured at a pressure of 0.5 kPa, after a period of 10 seconds, in particular according to standard NF EN ISO 9073-2 Method A of February 1997, is greater than 155 kg/m3, in particular greater than 170 kg/m3, in particular greater than 200 kg/m3, in particular greater than 250 kg/m3; and
- the air permeability of the structure measured at a pressure difference of 200Pa, is between 100 and 5000 l/m 2 /s, in particular between 100 and 3100 l/m 2 /s.
- the invention also relates to a non-woven type element, in particular forming a support element, comprising at least one part which is made up of a filament structure, in particular Spunbond, the structure extending between an upper face and a lower face, gases, in particular air and/or water vapor, being able to pass through the structure from one face to the other, is characterized in that:
- the density of the structure equal to the surface mass divided by the thickness, the thickness being measured at a pressure of 0.5 kPa, after a period of 10 seconds, in particular according to standard NF EN ISO 9073-2 Method A of February 1997, is greater than 155 kg/m3, in particular greater than 170 kg/m3, in particular greater than 200 kg/m3, in particular greater than 250 kg/m3; and
- the invention also relates to a non-woven type element, in particular forming a support element, comprising at least one part which is constituted by a filament structure, in particular Spunbond, the structure extending between an upper face and a lower face, the gases, in particular air and/or water vapor, being able to pass through the structure from one face to the other, is characterized in that:
- the density of the structure equal to the surface mass divided by the thickness, the thickness being measured at a pressure of 0.5 kPa, after a period of 10 seconds, in particular according to standard NF EN ISO 9073-2 Method A of February 1997, is greater than 155 kg/m3, in particular greater than 170 kg/m3, in particular greater than 200 kg/m3, in particular greater than 250 kg/m3;
- the structure has a surface mass of the structure, is between 3 and 50 g/m 2 , in particular between 10 and 40 g/m 2 , in particular between 15 and 30 g/m 2 ; in particular between 20 and 30 g/m 2 ; and
- the structure has undergone calendering treatment.
- the density equal to the surface mass divided by the thickness, the thickness being measured at a pressure of 0.5 kPa, after a duration of 10 seconds, in particular according to standard NF EN ISO 9073-2 Method A of February 1997, is greater than 500 kg/m3.
- the invention also relates to a non-woven type element, in particular forming a support element, comprising at least one part which is made up of a structure of short fibers, in particular carded fibers, in particular a Spunlace non-woven, the structure extending between an upper face and a lower face, gases, in particular air and/or water vapor, being able to pass through the structure from one face to the other, is characterized in that:
- the density of the structure equal to the surface mass divided by the thickness, the thickness being measured at a pressure of 0.5 kPa, after a duration of 10 seconds, in particular according to standard NF EN ISO 9073-2 Method A of February 1997, is greater than 500 kg/m3.
- the invention also relates to a non-woven type element, in particular forming a support element, comprising at least one part which is made of a structure of short fibres, in particular carded fibres, the structure extending between an upper face and a lower face, gases, in particular air and/or water vapour, being able to pass through the structure from one face to the other, is characterised in that:
- the density of the structure equal to the surface mass divided by the thickness, the thickness being measured at a pressure of 0.5 kPa, after a period of 10 seconds, in particular according to standard NF EN ISO 9073-2 Method A of February 1997, is greater than 155 kg/m3, in particular greater than 170 kg/m3, in particular greater than 200 kg/m3, in particular greater than 250 kg/m3, in particular greater than 400 kg/m3; and
- the air permeability of the structure measured at a pressure difference of 200Pa, is between 100 and 5000 l/m 2 /s, in particular between 620 and 3100 l/m 2 /s.
- the fibers and/or filaments are based on one or more materials chosen from thermoplastic materials, in particular chosen from: one or more polyester(s), in particular a polyester (PET) and/or a biodegradable polyester and/or a polyhydroxyalkanoate (PHA) and/or a polylactic acid (PLA) and/or a polybutylene terephthalate adipate (PBAT), and/or one or more polyolefin(s), in particular a polypropylene (PP) and/or a polyethylene (PE) and/or their copolymers, and/or one or more polyamide(s) and/or their mixtures.
- thermoplastic materials in particular chosen from: one or more polyester(s), in particular a polyester (PET) and/or a biodegradable polyester and/or a polyhydroxyalkanoate (PHA) and/or a polylactic acid (PLA) and/or a polybutylene terephthalate adipate (PBAT), and/or one or
- the density of the structure is strictly less than the density of the material alone of the structure, in particular less than 90% of the density of the material alone, even more preferably less than 80% of the density of the material alone, in particular is less than 1200 kg/m3, in particular less than 1000 kg/m3, more particularly less than 950 kg/m3.
- the element consists of at least 50% of the fiber and/or filament structure, in particular at least 60%, in particular at least 70%, more particularly at least 80%, preferably at least 90%. [0024] Preferably, the element consists entirely of the fiber and/or filament structure.
- “based on” means that the material is composed predominantly of, for example, at least 30%, 40%, 50%, 60%, 70%, 80%, 90%, 95%, in some cases 100% of this material.
- the remainder of the fibers and/or filaments and/or the remainder of the material of the fibers and/or filaments may comprise a natural or artificial material, for example, viscose, cotton, or the like.
- the fibers and/or filaments of the nonwoven element come from a sheet of fibers and/or filaments obtained by dry or melted process.
- the nonwoven element comprises pre-consolidation zones which are arranged in the structure of fibers and/or filaments and/or outside the structure of fibers and/or filaments.
- a pre-consolidation zone of the nonwoven element has the shape of a point, rectangle, dash, diamond, parallelogram, oval, tilde or the like.
- the nonwoven type element is devoid of a prior consolidation zone arranged in the structure of fibers and/or filaments and/or outside the structure of fibers and/or filaments.
- the structure of fibers and/or filaments extends over a surface area of at least 25 mm2 (5mm x 5mm), in particular at least 50 mm2 (7.07mm x 7.07mm), in particular at least 75 mm2 (8.66mm x 8.66mm).
- the structure of fibers and/or filaments extends continuously in the machine direction and/or in the transverse direction.
- the element is not a film.
- the structure has a thickness of less than 100 ⁇ m, in particular less than 85 pm, in particular between 20 and 100 pm, in particular between 30 and 85 pm.
- the surface mass of the structure is between 3 and 50 g/m 2 , in particular between 10 and 40 g/m 2 , in particular between 15 and 30 g/m 2 .
- the structure has an air permeability of between 100 and 3100 l/m2/s, and preferably is not a nonwoven comprising a Meltblown layer, in particular is not a nonwoven of the SMS type, namely a multilayer nonwoven with at least one Spunbond layer and at least one Meltblown layer.
- the present invention also relates to a method of manufacturing a support element, in particular an element according to the invention, comprising the steps in which:
- a layer of non-woven material is taken in the form of a sheet, at least part of which forms a structure of fibers and/or filaments, the structure having a length and a width,
- the sheet of fibers and/or filaments is calendered, in particular hot, over at least part of the width of the structure by passing it between two calendering cylinders, preferably with respective smooth exterior surfaces, in particular metallic.
- the respective temperatures of the cylinders and/or the air gap between the two cylinders and/or the respective speeds of the cylinders are chosen so that, at the exit from the calendering, the part of the sheet forming the structure of fibers and/or filaments has a density greater than 155 kg/m3, in particular greater than 200 kg/m3, in particular greater than 250 kg/m3.
- the at least one portion forming a structure of fibers and/or filaments of the nonwoven layer, before calendering has a density of between 10 and 155 kg/m3.
- the ratio of the density after calendering to the density before calendering is between 1.3 and 15, in particular between 1.5 and 8.
- the respective temperatures of the cylinders and/or the air gap between the two cylinders and/or the respective speeds of the cylinders are chosen so that, at the exit from the calendering, the part of the sheet forming a structure of fibers and/or filaments has a thickness of less than 100 ⁇ m, in particular less than 85 ⁇ m, in particular between 20 and 100 ⁇ m, in particular between 30 and 85 ⁇ m.
- the part of the sheet forming a structure of fibers and/or filaments has a thickness greater than 90 ⁇ m, in particular greater than 100 ⁇ m, in particular between 90 and 500 ⁇ m, in particular between 100 and 500 ⁇ m.
- the ratio of the thickness before calendering to the thickness after calendering is between 1.2 and 8.
- the respective temperatures of the cylinders and/or the air gap between the two cylinders and/or the respective speeds of the cylinders are chosen so that, at the exit from the calendering, the part of the sheet forming a structure of fibers and/or filaments has a surface mass of between 3 and 50 g/m 2 , in particular between 10 and 40 g/m 2 , in particular between 15 and 30 g/m 2 .
- the respective temperatures of the cylinders and/or the air gap between the two cylinders and/or the respective speeds of the cylinders are chosen so that, at the exit from the calendering, the part of the sheet forming a structure of fibers and/or filaments has a permeability of between 100 and 3100 l/m2/s (or I itre/(m 2 . s)), in particular of between 500 and 3100 l/m2/s, in particular between 620 and 3100 l/m 2 /s.
- the part of the sheet forming a structure of fibers and/or filaments has a permeability of between 1000 and 7000 l/m2/s, preferably between 1500 and 7000 l/m2/s, even more preferably between 2000 and 7000 l/m2/s, even more preferably between 3000 and 7000 l/m2/s.
- the ratio of the permeability before calendering to the permeability after calendering is between 1.1 and 12, in particular between 1.2 and 8.
- the peripheral rotation speed of one of the calendering rollers is higher than that of the other calendering roller. This results in excellent smoothing of the structure on the side of the higher speed roller.
- the speed of movement of the product is greater than the peripheral rotation speed of one of the calendering rollers. This results in excellent smoothing of the structure on the side of the higher speed roller.
- a so-called snubbing cylinder intended to increase the contact surface of the part of the sheet forming a structure of fibers and/or filaments with the first calendering cylinder with which it comes into contact before being sent between the calendering cylinders, so that the part of the sheet forming a structure of fibers and/or filaments is preheated before passing between the cylinders.
- the rollers are brought to a temperature higher than the HDT temperature (method B) of the nonwoven material, in particular higher by 20°C, in particular the rollers are brought to a temperature higher than the HDT temperature (method B) of the nonwoven material having the lowest HDT temperature (method B), in particular higher by 20°C.
- the nonwoven layer that passes through the hot calendering installation may be a web or a sheet of nonwoven material that has been previously consolidated or not. When it is consolidated, it may in particular be consolidated by thermo-bonding, mechanical needling, water jet, air jet, or the like, in particular according to unitary patterns, for example in the form of dots, ovals, dashes that may be arranged in lines, columns or in a specific shape, for example hexagonal or other.
- the structure of fibers and/or filaments obtained at the exit of the calendering remains breathable, has a soft feel, is more rigid in the MD direction, therefore less sensitive to deformation in MD, for example during unwinding and is less sensitive to variations in tension in the line, is less sensitive in CD, for example by having less of a "neckdown" effect during stretching in MD, is not very rough and not very rough, the static and/or dynamic friction coefficients being low, is not very thick, which makes it possible to wind more material per reel for a given diameter and is less sensitive to pressure, which makes it more stable when it is taken for positioning on a diaper in a manufacturing line.
- the nonwoven layer has a structure of which, due to the prior consolidation, between 75% and 95% of the parts of the fibers and/or filaments forming the upper face, respectively lower face, are free, that is to say can be individualized from the structure, in particular be moved away from it.
- this percentage drops to between 0% and 25%, in particular between 0% and 15%.
- the present invention also relates to a laminate comprising an element according to the invention forming a support and a loop element, in particular a non-woven fabric with loops fixed to each other, in particular by welding points or islands by calendering and/or by ultrasonic welding.
- the present invention also relates to a diaper comprising an element according to the invention forming a support, in particular a laminate according to the invention, which in particular forms a Landing Zone of the diaper.
- the present invention also relates to a winding in the form of a coil of a support element according to the invention or of a laminate according to the invention.
- the air permeability in particular measured at a pressure difference of 200 Pa, in particular according to the ISO 9237 standard, published in August 1995, ISSN 0335-3931, is greater than 100, in particular greater than 200, in particular greater than 300, in particular greater than 400, in particular greater than 500, in particular greater than 600, in particular greater than 700, in particular greater than 800, in particular greater than 900, in particular greater than 1000, in particular greater than 1100, in particular greater than 1200, in particular greater than 1300, in particular greater than 1400, in particular greater than 1500, in particular greater than 1600, and is less than 5000, in particular less than 4900, in particular less than 4800, in particular less than 4700, in particular less than 4600, in particular less than 4500, in particular less than 4400, in particular less than 4300, in particular less than 4200, in particular less than 4100, in particular less than 4000, in particular less than 3900, in particular less than 3800, in particular less than 3700, in particular
- Figure 1 is a schematic representation of an embodiment of a method according to the invention.
- Figure 2 is a perspective view of an installation for measuring the thickness of a laminate and/or a support element and/or a nonwoven.
- Figure 3 is a sectional view of the installation of Figure 2.
- Figure 4 is a perspective view of a diaper comprising a Landing Zone made of a laminate comprising a support element according to the invention.
- Figures 5 to 16 are photographs, seen from above, of samples of examples 1 to 12 respectively, before passing between the calendering rollers, the photographs having been taken with a magnification of 100.
- Figures 17 to 28 are photographs, seen from above, of samples of examples 1 to 12 respectively, after passing between the calendering rollers, the photographs having been taken with a magnification of 100.
- Figures 29 and 30 are perspective views of an adapter used to measure the air permeability of small surface support elements.
- a nonwoven sheet 1 is unwound from a reel (not shown in the figure) to be conveyed into the air gap between two metal calendering cylinders 2 and 3, brought to a temperature greater than or equal to 135°C for a sheet based on one or more thermoplastic materials, after passing around a bar feeder cylinder 4. At the outlet of the air gap, the nonwoven sheet 1 is left to cool over a sufficient distance before being wound into a winding device (not shown in the figure).
- the air gap may have a value greater than 10 micrometers, in particular greater than 20 micrometers, in particular greater than 30 micrometers and less than 100 micrometers, in particular less than 90 micrometers, in particular less than 85 micrometers, so as to create on the sheet a linear pressure of between 10 and 150 N/mm, in particular between 20 and 120 N/mm.
- the outer surfaces of the two cylinders are smooth, in particular do not have any engraving patterns.
- a stretching cylinder 5 for example motorized, in particular cooled, to stretch the product on the calendering cylinder 3.
- the stretching cylinder 5 shown in FIG. 1 could be offset from the calendering cylinder 3.
- Example 1 A 100% Biobase PLA Spunbond of 20g/ m2 , 220mm wide and consolidated with oval shaped patterns, available from the Fitesa company under the designation PS1 DW-P01.
- Example 2 A 100% Biobase PLA Spunbond of 20g/ m2 , 300mm wide and consolidated with oval shaped patterns, available from the Fitesa company under the designation PS1 DW-P01.
- Example 3 A 100% PP Spunbond of 25g/ m2 , 240mm wide and consolidated with oval shaped patterns, available from the company Fitesa under the designation PS6-12G.
- Example 4 A 100% PP HES Spunbond of 25g/ m2 , 180mm wide and having oblong dash-shaped calendering patterns in the CD direction, available from Fitesa under the designation PS6KW-11 G.
- Example 5 A non-woven fabric of SMS type 100% PP of 13g/ m2 , width 240mm and consolidated with oval shaped patterns, available from the company Fitesa under the designation PC51 FW-111.
- Example 6 A 100% PP Spunbond of 18g/ m2 , 170mm wide and available from the company Texbond under the designation BLOWBOND SB ultrasoft.
- Example 7 A 100% Biobase PLA Spunlace of 20g/ m2 , 200mm wide and available from the company Glatfelter (formerly Jacob Holm) under the designation 15.020.001.
- Example 8 A 100% PP Spunbond of 10g/ m2 , 100mm wide, available from Union Industries SpA under the designation S 1000PH W.
- Example 9 A 100%PP thermally bonded carded sheet of 22g/ m2 , 165mm wide and available from Sandler under the designation Sawabond 01408-001.
- Example 10 A 100% PET (or 100%PES) Spunlace of 30g/ m2 , 180mm wide and available from the company Eruslu.
- Example 11 A 50% PET 50% PP Spunlace of 28g/ m2 , 180mm wide and available from the Sandler company under the designation Sawasoft 01188-001.
- Example 12 A 100% Biobase PLA Spunbond of 20g/ m2 , 220mm wide and available from the Fitesa company under the designation PS1 DW-P01.
- the French and European Standard NF EN ISO 9073-2 Method A of February 1997 can be implemented using a thickness comparator, in particular the device called “Precision Thickness Tester” marketed by the company VVC under the reference D-2005-V.
- This apparatus 200 comprises a disk 202, with a circular surface area of 25 cm 2 , arranged at the end of a cylindrical arm 203 movable vertically under the control of electronic control means integrated into the apparatus.
- the other end of the arm comprises an additional mass for applying a pressure of 0.5KPa (after a duration of 10 seconds) on a base surface facing the disk 202 of 25 cm 2 , if the element S has a surface area of sufficient size, that is to say, if the surface of the disk 202 of 25 cm 2 is entirely covered by the sample.
- the non-woven element having a density greater than 155 kg/m3, in particular greater than 200 kg/m3, in particular greater than 250 kg/m3, has a thickness that does not undergo significant variations when going from a pressure of 0.5 kPa to 5.5 kPa, after a duration of 10 seconds.
- samples such as sample S, i.e. having a surface capable of completely covering the disk 202, as shown in Figure 2.
- the puck can either be used as shown in Figure 2, or not using the puck and sandwiching the sample S between the base surface 204 and the disk 202.
- a support element and/or a laminate and/or a nonwoven To measure the volumetric mass or density of a support element and/or a laminate and/or a nonwoven, its thickness is measured as described above and the value obtained from the thickness is multiplied by its surface mass to thus obtain the density/volumic mass of the support element, the surface mass, as is well known, being able to be calculated by weighing the sample, with any scale available on the market and by dividing the mass obtained by the surface area of the sample.
- the Textflix 3300 air permeability tester from Textest AG can be used, for example, using a test pressure of 125 Pa and a test head area of 38 cm 2 .
- This permeability can also be measured according to the protocol defined in the ISO 9237 standard, published in August 1995, ISSN 0335-3931, at a pressure of 200Pa with a sample having a surface area of 20cm 2 .
- the reference air permeability tester "FX 3300" available from the company Textest AG can be used.
- This adapter shown in Figures 29 and 30, is for use with the previously mentioned FX3000 tester or another similar tester.
- the adapter 100 comprises two substantially circular plate-shaped portions, namely an upper portion 110 and a lower portion 120 which are connected by a hinge 130.
- the portion 110 has an inner face 110i and an outer face 110o.
- the portion 120 has an inner face 120i and an outer face 120o.
- the upper and lower portions 110 each have a respective through opening, respectively 112 and 122.
- the openings 112 and 122 each have a circular edge with a diameter of 8 mm, and are aligned opposite each other, to allow a flow of air or fluid to pass through the adapter 100.
- the opening of the lower portion 120 is surrounded by a sealing ring 124 which is arranged on the inner face 120i of the lower portion 120.
- This sealing ring 124 ensures an airtight seal when the upper portion 100 is folded against the lower portion 120 of the adapter 100, with sufficient pressure, with the sample to be tested positioned so as to plug the openings 112 and 122 between the upper portion 110 and the lower portion 120. 120 lower of adapter 100.
- the inner face of the upper portion is adapted to substantially contact the inner face 120i of the lower portion 120 when the adapter is closed, does not contain a sample to be tested and the seal 124 has been removed.
- the sealing ring 124 may also be arranged on the internal face of the upper part, around the opening 112 made in the upper part 110 or two sealing rings may be provided, one around each opening and in contact with each other.
- the external face 120o of the lower part 120 may comprise a sealing ring 126, which may for example facilitate the measurement of the flow which passes through the adapter 100, that is to say the flow which passes through the product to be tested, in particular the insertion of the pipe coming from the tester.
- the pressure sufficient to ensure sealing at the interface between the seal 124 and the internal face of the upper part is obtained by positioning the adapter between the test head arranged at the end of the clamping arm of the air permeability tester and the test table, the arm elastically pressing, using a spring, the adapter against the table with a force sufficient to ensure sealing, which force being that conventionally used without an adapter.
- the samples are conditioned in a normal atmosphere, as defined in ASTM D5170, at a temperature of 23 degrees +/- 2 degrees and at a relative humidity of 50 percent +/- 5 percent for 24 hours.
- an elongation test at break of the sample can be carried out at a speed of 100 mm/min with an inter-jaw distance of 50 mm, a sample width of 50 mm and a preload of 0.1 N using measuring equipment such as a dynamometer conforming to standard EN 10002.
- nonwoven is understood to mean a product obtained after the formation of a sheet of fibers and/or filaments that has been consolidated.
- the sheet of fibers and/or filaments can be obtained by dry process, melted process, wet process or so-called "Flash spinning" process.
- the dry process for example by carding, generally corresponds to fibers separated and arranged by carding.
- the melted process (for example via a spinneret or so-called “spunlaid”) corresponds to polymers that are melted then extruded and spun in order to create a fibrous or filamentary sheet. In certain cases, by melting, it may be necessary to carry out or not carry out an additional consolidation step.
- the wet process (for example called “Wetlaid") is generally used with short artificial cellulose fibers (fibranne, viscose and others) that are dispersed in water before forming a sheet by depositing the fibers on a sieve. Flash spinning is generally used with synthetic fibres that are dissolved using a solvent, before being sprayed under vacuum onto a support, the fibre web being formed after evaporation of the solvent.
- the consolidation can be mechanical, chemical or thermal and results in the presence of a bond between the fibres and/or filaments. This consolidation can be direct, i.e. made directly between the fibres and/or filaments by welding, or it can be indirect, i.e.
- non-woven refers to a structure in the form of a ribbon or web of fibres and/or filaments that are interwoven in a non-uniform, irregular manner. or randomly.
- a nonwoven fabric may have a single layer structure or a multi-layer structure.
- a nonwoven fabric may be made from a variety of synthetic and/or natural materials. Exemplary natural materials are cellulose fibers, such as cotton, jute, paper pulp, linen, and the like, and may also include reprocessed cellulose fibers, such as rayon or viscose (cellulose acetate). Natural fibers for a nonwoven material may be prepared using various processes, such as carding.
- Exemplary synthetic materials include, but are not limited to, synthetic thermoplastic polymers, which are known to form fibers and/or filaments that include, but are not limited to, polyolefins, e.g., polyethylene, polypropylene, polybutylene, and the like; polyamide, e.g., polyamide 6, polyamide 6.6, polyamide 10, polyamide 11, polyamide 12, and the like; polyesters, for example polyethylene terephthalates, polybutylene terephthalates, polylactic acids (PLA) and the like, polycarbonates, polystyrenes, thermoplastic elastomers, polymeric vinyls, polyurethanes and blends and copolymers thereof.
- synthetic thermoplastic polymers which are known to form fibers and/or filaments that include, but are not limited to, polyolefins, e.g., polyethylene, polypropylene, polybutylene, and the like
- polyamide e.g., polyamide 6, polyamide 6.6, polyamide 10, polyamide 11, poly
- bioplastic for example Bio-based (for example Bio-PE, PLA or PHA (Polyhydroxyalkanoates), polyamide 11, viscose (cellulose acetate), and the like) and/or biodegradable (PLA and the like).
- bio-based for example Bio-PE, PLA or PHA (Polyhydroxyalkanoates), polyamide 11, viscose (cellulose acetate), and the like
- PLA and the like biodegradable
- fibers and filaments differ mainly in their length and in their manufacturing process.
- Continuous filaments are understood to mean unitary elements, of very great lengths relative to the diameter in which their section is included, extruded continuously to directly form a nonwoven sheet which can then be consolidated by thermo-bonding or any other means to enable the desired performances to be achieved and/or their transport.
- the continuous filaments Preferably, have a length greater than 120 mm.
- fiber is understood to mean the generic term for a textile material or an element of textile material of reduced length, less than the length of the continuous filaments, and capable of being spun and/or used in the production of nonwovens.
- fibers There are two types of fibers, short fibers formed from discontinuous material of short length less than 50 mm (preferably from 25 mm to 50 mm) and long fibres formed discontinuously of great length greater than 50 mm (preferably from 60 mm to 120 mm).
- the fibers are commonly oriented and organized into a sheet during a carding step well known to those skilled in the art. This sheet can then be consolidated by thermo-bonding or any other means to allow the desired performances to be achieved and/or their transport.
- the term “film” means a sheet or film type material whose length and width are each much greater than the thickness (for example in a ratio of 10x, 50x or even 1000x or more).
- a film has a thickness of less than 0.7 mm, in particular less than 0.5 mm or less.
- a cord or a wire or a set of cords and/or wires are not films.
- the element according to the invention can be used in a lamination process to form a laminate, for example as a support layer as described in document WO201515515.
- a laminate for example as a support layer as described in document WO201515515.
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Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FRFR2303603 | 2023-04-11 | ||
| FR2303603A FR3147816A1 (fr) | 2023-04-11 | 2023-04-11 | Elément support pour un stratifié comportant une couche de non tissé à boucle et stratifié comportant un tel élément support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024213435A1 true WO2024213435A1 (fr) | 2024-10-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2024/058910 Pending WO2024213435A1 (fr) | 2023-04-11 | 2024-04-02 | Elément support pour un stratifié comportant une couche de non tissé à boucle et stratifié comportant un tel élément support |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR3147816A1 (fr) |
| WO (1) | WO2024213435A1 (fr) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001001698A (ja) | 1999-06-18 | 2001-01-09 | Tobu Kagaku Kogyo Kk | 壁 紙 |
| US20050133151A1 (en) * | 2003-12-22 | 2005-06-23 | Maldonado Pacheco Jose E. | Extensible and stretch laminates and method of making same |
| WO2015015515A2 (fr) | 2013-07-31 | 2015-02-05 | Council Of Scientific And Industrial Research | Mats adhésifs électrofilés à base de pcda-phbv utilisés en tant que caractéristique d'authentification |
| WO2016007431A1 (fr) | 2014-07-09 | 2016-01-14 | 3M Innovative Properties Company | Élément à boucle pour élément de fixation de surface et objet pour hygiène |
| WO2018060885A1 (fr) | 2016-09-29 | 2018-04-05 | 3M Innovative Properties Company | Élément formant boucle et couche |
| US20190270220A1 (en) * | 2016-08-31 | 2019-09-05 | Seiko Epson Corporation | Sheet manufacturing apparatus and control method for sheet manufacturing apparatus |
| WO2021009082A1 (fr) | 2019-07-16 | 2021-01-21 | Aplix | Bande de fixation améliorée |
| EP3812027A1 (fr) | 2018-06-25 | 2021-04-28 | Toray Industries, Inc. | Tissu non-tissé filé-lié destiné à être utilisé dans des filtres, et son procédé de fabrication |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3019493B1 (fr) | 2014-04-08 | 2017-11-10 | Aplix Sa | Procede pour impartir du developpe agrippant a un stratifie et stratifie obtenu par le procede |
-
2023
- 2023-04-11 FR FR2303603A patent/FR3147816A1/fr active Pending
-
2024
- 2024-04-02 WO PCT/EP2024/058910 patent/WO2024213435A1/fr active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001001698A (ja) | 1999-06-18 | 2001-01-09 | Tobu Kagaku Kogyo Kk | 壁 紙 |
| US20050133151A1 (en) * | 2003-12-22 | 2005-06-23 | Maldonado Pacheco Jose E. | Extensible and stretch laminates and method of making same |
| WO2015015515A2 (fr) | 2013-07-31 | 2015-02-05 | Council Of Scientific And Industrial Research | Mats adhésifs électrofilés à base de pcda-phbv utilisés en tant que caractéristique d'authentification |
| WO2016007431A1 (fr) | 2014-07-09 | 2016-01-14 | 3M Innovative Properties Company | Élément à boucle pour élément de fixation de surface et objet pour hygiène |
| US20190270220A1 (en) * | 2016-08-31 | 2019-09-05 | Seiko Epson Corporation | Sheet manufacturing apparatus and control method for sheet manufacturing apparatus |
| WO2018060885A1 (fr) | 2016-09-29 | 2018-04-05 | 3M Innovative Properties Company | Élément formant boucle et couche |
| EP3812027A1 (fr) | 2018-06-25 | 2021-04-28 | Toray Industries, Inc. | Tissu non-tissé filé-lié destiné à être utilisé dans des filtres, et son procédé de fabrication |
| WO2021009082A1 (fr) | 2019-07-16 | 2021-01-21 | Aplix | Bande de fixation améliorée |
Also Published As
| Publication number | Publication date |
|---|---|
| FR3147816A1 (fr) | 2024-10-18 |
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