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
• • A—HUMAN NECESSITIES
  • A44—HABERDASHERY; JEWELLERY
  • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
  • A44B18/00—Fasteners of the touch-and-close type; Making such fasteners
  • A44B18/0003—Fastener constructions
  • A44B18/0011—Female or loop elements
• • 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
  • A61F13/627—Fabric strip fastener elements, e.g. hook and loop characterised by the loop
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
  • B29C48/001—Combinations of extrusion moulding with other shaping operations
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
  • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
  • B29C48/07—Flat, e.g. panels
  • B29C48/08—Flat, e.g. panels flexible, e.g. films
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
  • B29C65/002—Joining methods not otherwise provided for
  • B29C65/008—Joining methods not otherwise provided for making use of electrostatic charges
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
  • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
  • B29C65/022—Particular heating or welding methods not otherwise provided for
  • B29C65/028—Particular heating or welding methods not otherwise provided for making use of inherent heat, i.e. the heat for the joining comes from the moulding process of one of the parts to be joined
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C66/00—General aspects of processes or apparatus for joining preformed parts
  • B29C66/69—General aspects of joining filaments 
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C66/00—General aspects of processes or apparatus for joining preformed parts
  • B29C66/80—General aspects of machine operations or constructions and parts thereof
  • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
  • B29C66/836—Moving relative to and tangentially to the parts to be joined, e.g. transversely to the displacement of the parts to be joined, e.g. using a X-Y table
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
  • B29C48/001—Combinations of extrusion moulding with other shaping operations
  • B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
  • B29C48/001—Combinations of extrusion moulding with other shaping operations
  • B29C48/0023—Combinations of extrusion moulding with other shaping operations combined with printing or marking
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
  • B29C48/25—Component parts, details or accessories; Auxiliary operations
  • B29C48/30—Extrusion nozzles or dies
  • B29C48/35—Extrusion nozzles or dies with rollers
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C66/00—General aspects of processes or apparatus for joining preformed parts
  • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
  • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C66/00—General aspects of processes or apparatus for joining preformed parts
  • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
  • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
  • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C66/00—General aspects of processes or apparatus for joining preformed parts
  • B29C66/80—General aspects of machine operations or constructions and parts thereof
  • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
  • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
  • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
  • B29C66/83431—Roller, cylinder or drum types; Band or belt types; Ball types rollers, cylinders or drums cooperating with bands or belts
  • B29C66/83433—Roller, cylinder or drum types; Band or belt types; Ball types rollers, cylinders or drums cooperating with bands or belts the contact angle between said rollers, cylinders or drums and said bands or belts being a non-zero angle
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C66/00—General aspects of processes or apparatus for joining preformed parts
  • B29C66/90—Measuring or controlling the joining process
  • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
  • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
  • B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
  • B29C66/91411—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of the parts to be joined, e.g. the joining process taking the temperature of the parts to be joined into account
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C66/00—General aspects of processes or apparatus for joining preformed parts
  • B29C66/90—Measuring or controlling the joining process
  • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
  • B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C66/00—General aspects of processes or apparatus for joining preformed parts
  • B29C66/90—Measuring or controlling the joining process
  • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
  • B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
  • B29C66/9192—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams
  • B29C66/91921—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C66/00—General aspects of processes or apparatus for joining preformed parts
  • B29C66/90—Measuring or controlling the joining process
  • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
  • B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
  • B29C66/9192—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams
  • B29C66/91921—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature
  • B29C66/91931—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature in explicit relation to the fusion temperature or melting point of the material of one of the parts to be joined
  • B29C66/91933—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature in explicit relation to the fusion temperature or melting point of the material of one of the parts to be joined higher than said fusion temperature
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
  • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
  • B29K2023/10—Polymers of propylene
  • B29K2023/12—PP, i.e. polypropylene
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
  • B29L2009/00—Layered products
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
  • B29L2031/00—Other particular articles
  • B29L2031/48—Wearing apparel
  • B29L2031/4871—Underwear
  • B29L2031/4878—Diapers, napkins
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
  • B29L2031/00—Other particular articles
  • B29L2031/727—Fastening elements
  • B29L2031/729—Hook and loop-type fasteners
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T24/00—Buckles, buttons, clasps, etc.
  • Y10T24/27—Buckles, buttons, clasps, etc. including readily dissociable fastener having numerous, protruding, unitary filaments randomly interlocking with, and simultaneously moving towards, mating structure [e.g., hook-loop type fastener]
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T24/00—Buckles, buttons, clasps, etc.
  • Y10T24/27—Buckles, buttons, clasps, etc. including readily dissociable fastener having numerous, protruding, unitary filaments randomly interlocking with, and simultaneously moving towards, mating structure [e.g., hook-loop type fastener]
  • Y10T24/275—Buckles, buttons, clasps, etc. including readily dissociable fastener having numerous, protruding, unitary filaments randomly interlocking with, and simultaneously moving towards, mating structure [e.g., hook-loop type fastener] with feature facilitating or causing attachment of filaments to mounting surface
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T24/00—Buckles, buttons, clasps, etc.
  • Y10T24/27—Buckles, buttons, clasps, etc. including readily dissociable fastener having numerous, protruding, unitary filaments randomly interlocking with, and simultaneously moving towards, mating structure [e.g., hook-loop type fastener]
  • Y10T24/275—Buckles, buttons, clasps, etc. including readily dissociable fastener having numerous, protruding, unitary filaments randomly interlocking with, and simultaneously moving towards, mating structure [e.g., hook-loop type fastener] with feature facilitating or causing attachment of filaments to mounting surface
  • Y10T24/2758—Thermal or adhesive
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/23907—Pile or nap type surface or component
  • Y10T428/23957—Particular shape or structure of pile
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/23907—Pile or nap type surface or component
  • Y10T428/23986—With coating, impregnation, or bond
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
  • Y10T428/24008—Structurally defined web or sheet [e.g., overall dimension, etc.] including fastener for attaching to external surface

Definitions

• the present invention relates to a female part with loops for a hook-and-loop fastening device with hooks and loops, in particular for use for the closure of diapers.
• the present invention also relates to a method of manufacturing a female part with such loops.
• Many devices and methods are described in the patent literature concerning these female parts with loops for hook-and-loop fasteners and in particular in the field of diapers. Given the production requirements, we want to be able to have a female part with loops as inexpensive as possible and to be able to manufacture it with the fastest possible production rate. It is known for example from European patent No.
• a female part with loops consisting of a film or film of elastic material and of filaments welded to the film in a pattern of welding, the welding being carried out so that loops are formed by the filaments between them and the film.
• the manufacturing process for these female parts is complicated to implement, in particular due to the fact that there is provided a welding step and a step of shrinking the film to form the loops.
• the female part obtained is particularly expensive.
• an elastic material let's not even speak of a heat-shrinkable material
• the filaments, to support the various operations are filaments of large diameters , especially greater than 10 Décitex, hence a high cost.
• the present invention relates to a method of manufacturing a female hook-and-loop fastener which makes it possible to obtain a female hook-and-loop fastener at very low cost on the one hand and which allows high-speed manufacturing thereof on the other hand.
• the use of fine filaments also allows a very soft feel, since the filament being extruded, it is in a state of material with low orientation, which leaves a great flexibility and softness.
• the method of manufacturing a female hook-and-loop part comprising a plastic film and filaments fixed on one of the faces of the film to form loops, is characterized in that it comprises the steps which consist : - forming by extrusion a plastic film; - passing a curtain of filaments between a belt or a pressing roller and a forming roller so as to give each filament a hollow and bump shape; - Bringing the hollow filaments and bumps in contact with the softened plastic material of the film, at the extrusion outlet, on the surface thereof, by application of an electrostatic field to anchor, by electrostatic pressure, the filaments in the material of the softened plastic film, so that the bossed parts of the filaments form the loops while the hollow parts are anchored in the plastic.
• the manufacturing process is therefore particularly rapid and allows large-scale production of female parts with loops for hook-and-loop fasteners, in particular in the field of diapers.
• the filaments have a titer less than 10 decitex and in particular less than 7.7 decitex, in particular between 2.2 and 5.5 decitex.
• the plastic film has a thickness of between 10 and 20 ⁇ m or 30 ⁇ m, when it is to be printed, and between 5 and 15 ⁇ m without printing.
• the plastic film is a material which is not elastic at least in the direction of the filaments (direction of travel of the film) and not heat-shrinkable.
• elastic material is meant a material, which substantially resumes its initial shape without deformation (that is to say in particular that it returns to a shape having a dimension less than 105% of its initial dimension) when it undergoes elongation in a any direction greater than 120% of its initial dimension in said any direction at rest.
• material which is not heat shrinkable means a material which, when subjected to heat, does not shrink by more than 10%, in particular when it is subjected to an equal or higher, at 140 ° for at least 10 seconds.
• the present invention also relates to a female part with loops for hook-and-loop fastener closure, in particular for a diaper, obtained by the process according to the invention.
• the female part consisting of a plastic film and filaments, independent of each other and fixed on one of the faces of the film, is characterized in that each filament is anchored on a part of its length in the plastic film, while on other parts, it is at a distance from the film to form the loops; -
• the film being, at least in the longitudinal direction of the filaments, in a non-elastic and non-heat-shrinkable material, and the parts forming loops of the filaments are independent of each other.
• filaments or parts of loops of filaments which are independent of one another is meant filaments, or parts of loops of filaments, which are not linked to their neighbor ( e) s, for example by forming a sheet.
• the filaments are connected to each other by the plastic film only and not to each other directly, even if it may happen in the final product that certain filaments come into contact with others at the level of the parts forming loops. However, there is no fixation at this contact and the filaments can move away from each other by themselves, contrary to the case where they are formed into a sheet.
• the filaments have a titer of less than 10 decitex, preferably less than or equal to 7.7, in particular between 2.2 and 5.5 decitex.
• the loops protrude from the film with their feet arranged in rows, the rows being spaced from each other by an inter-row distance at least equal to 0.05 mm, in particular greater than or equal to 0.15 mm.
• the filaments are arranged on the film in a single layer, that is to say each filament is alone above the film without another filament on top.
• the film has a thickness of between 10 and 20 or 30 ⁇ m, when it is to be printed, and between 5 and 15 ⁇ m without printing.
• the filaments are multi-lobed, in particular three-lobed or four-lobed, the non-round section in the shape of a clover with several sheets making less yarn material necessary for simultaneously a higher coating of the filaments in the film.
• the filaments are crimped or textured, thus favoring the grip of the hooks due to the local undulation on the outer surface of the filaments themselves. Each filament thus crimped or textured is more easily distinguished from its neighbors.
• FIG. 1 is an overview of a device for implementing the manufacturing method according to the invention
• Figure 2 is a perspective view of a loop portion according to the invention.
• Figure 3 shows part of the device of Figure 1 on a larger scale.
• FIGS. 4a and 4b are views on a larger scale of parts of the forming roller and the toothed belt of the device of FIGS. 1 and 3.
• FIG. 2 one can see a part with loops according to the invention.
• This loop part consists of a film 1 of non-elastic and non-heat-shrinkable plastic material, filaments 2 being anchored in the film 1.
• the filaments 2 are arranged in rows on the film 1.
• Each filament 2 consists of a succession of hollow and bump parts, namely hollow or anchor parts 3 and parts in bumps or loops 4.
• the filaments are anchored in the plastic of the film. In particular, they are partially anchored in the plastic of the film.
• the filaments have a titer equal to 5.5 decitex. Preferably, this titer is strictly less than 10 decitex.
• Each row of loops in the longitudinal direction in the figure is spaced from the neighboring rows by a distance equal to and preferably greater than 0.15 mm, in particular between 0.05 and 0.5 mm. This inter-row distance can vary from one row to another, in particular to avoid an overly pronounced lineage effect.
• the loops are shown well aligned in a row. In fact, it usually happens that the loops tilt to one side or the other and then come into contact with a loop of a neighboring row.
• the anchoring parts 3 extend over a length of, for example, between 0.2 and 1.5 mm, for example 0.8 mm, the loops have a length of, for example, between 0.5 mm and 2.5 mm , for example 1.6 mm, their height being approximately 1 mm, possibly being between for example 0.2 mm and 1.5 mm.
• the plastic material of the film which may be one-layer or multilayer, may be a polyolefin such as polypropylene or polyethylene (temperature at the outlet of the die higher than the softening temperature generally between 120 ° C and 180 ° C), a polyamide or a polyester (temperature at the outlet of the die greater than the softening temperature between 180 ° C and 270 ° C), or a modified copolymer (temperature at the outlet of the die greater than the softening temperature between 80 ° C and 180 ° C) while the filaments can be for example polyamide, polyester or polypropylene.
• the film can also be formed in multiple layers. The process for manufacturing a loop part as shown in FIG.
• a softened plastic film is extruded from an extrusion die 10 which is circulated to a speed equal to 300 m / min preferably between 200 and 500 m / min
• a curtain 30 of filaments is extruded from a die
• the forming roller 40 is grooved.
• the notched belt 50 has grooves 51 of complementary shapes of ribs 41 formed on the outer surface of the roller 40. Likewise between the grooves 51, studs 52 of complementary shapes of recesses 42 are formed formed between the ribs 41. Au bottom of the recesses 42, there are provided suction holes 43 allowing the filaments of the curtain 30 passing between the roller 40 and the belt 50 to be pressed by suction. Thus, when the filament is pressed between the 40. forming roller and the notched belt 50, it undergoes a deformation so as to be gathered by being caught between the recesses 42 and the pads 52 complementary.
• the filaments At the exit of the forming roller and the belt, the filaments have hollow and bump shapes.
• the curtain of hollow and bump filaments is then brought into contact with the softened plastic film directly at the outlet of the plastic film extrusion.
• An electrostatic device electrostatic bar 60 of the Eltex type applies an electric field at the location of this contact between the filaments and the softened plastic film.
• This electrostatic field which depends on the unwinding speed and which in particular can be between 200 and 500 V / m allows the application of an electrostatic pressure which anchors the hollow parts of the filaments in the plastic film which is still softened, leaving the bumpy parts away from the film, so as to obtain a female part at the exit from the zone of the electrostatic field as shown in FIG. 2.
• the cooling very fast plastic material anchors the filaments in the film.
• the temperature of the film depositing on the filaments is of the order of 150 ° C. This temperature is higher than the softening temperature of polypropylene.
• the first layer is at a temperature of 150 ° C.
• the second layer which is at a temperature above its point of melting (for example beyond 130 ° C.), the second layer having the function of being a bonding layer with filaments of different material, for example made of polyamide, which makes it possible to carry out all the possible combinations for the materials of the film and filaments.
• This manufacturing process is particularly simple and quick.
• the product obtained is particularly inexpensive since the film can be produced from a simple plastic material, which is neither elastic nor heat-shrinkable and the filaments need not be thick and in particular the titles are strictly less than 10 decitex and preferably less than or equal to 7.7 decitex, in particular between 2.2 and 5.5 decitex.
• the female part obtained is thus particularly suitable for use in diapers where it is necessary to produce female parts in large quantities and at the lowest possible cost.

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• Slide Fasteners, Snap Fasteners, And Hook Fasteners (AREA)
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• 2004
  • 2004-05-21 FR FR0405513A patent/FR2870436B1/fr not_active Expired - Lifetime
• 2005
  • 2005-05-20 CA CA 2563591 patent/CA2563591A1/fr not_active Abandoned
  • 2005-05-20 BR BRPI0510405-0A patent/BRPI0510405A/pt not_active Application Discontinuation
  • 2005-05-20 CN CNA2005800162823A patent/CN1972609A/zh active Pending
  • 2005-05-20 US US11/587,829 patent/US7727611B2/en not_active Expired - Fee Related
  • 2005-05-20 KR KR1020067024309A patent/KR20070032659A/ko not_active Application Discontinuation
  • 2005-05-20 JP JP2007517341A patent/JP2007537810A/ja active Pending
  • 2005-05-20 EP EP05773071A patent/EP1753316A1/fr not_active Withdrawn
  • 2005-05-20 MX MXPA06013363A patent/MXPA06013363A/es unknown
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