SE512639C2 - Methods of preparing a material laminate for use in an absorbent article - Google Patents

Methods of preparing a material laminate for use in an absorbent article

Info

Publication number
SE512639C2
SE512639C2 SE9604480A SE9604480A SE512639C2 SE 512639 C2 SE512639 C2 SE 512639C2 SE 9604480 A SE9604480 A SE 9604480A SE 9604480 A SE9604480 A SE 9604480A SE 512639 C2 SE512639 C2 SE 512639C2
Authority
SE
Sweden
Prior art keywords
web
bonding
speed
absorbent article
laminate
Prior art date
Application number
SE9604480A
Other languages
Swedish (sv)
Other versions
SE9604480D0 (en
SE9604480L (en
Inventor
Ulrika Hagrud
Per Ljunggren
Urban Nilsson
Original Assignee
Sca Hygiene Prod Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sca Hygiene Prod Ab filed Critical Sca Hygiene Prod Ab
Priority to SE9604480A priority Critical patent/SE512639C2/en
Publication of SE9604480D0 publication Critical patent/SE9604480D0/en
Priority to PCT/SE1997/001954 priority patent/WO1998024389A1/en
Priority to AU54205/98A priority patent/AU5420598A/en
Priority to PE1997001061A priority patent/PE26299A1/en
Priority to ZA9710699A priority patent/ZA9710699B/en
Priority to TNTNSN97199A priority patent/TNSN97199A1/en
Priority to TW086118254A priority patent/TW398972B/en
Priority to CO97071435A priority patent/CO4890835A1/en
Publication of SE9604480L publication Critical patent/SE9604480L/en
Publication of SE512639C2 publication Critical patent/SE512639C2/en

Links

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
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/47—Sanitary towels, incontinence pads or napkins
    • A61F13/475—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means
    • A61F13/4751—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means the means preventing fluid flow in a transversal direction
    • A61F13/4756—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means the means preventing fluid flow in a transversal direction the means consisting of grooves, e.g. channels, depressions or embossments, resulting in a heterogeneous surface level
    • 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
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/47—Sanitary towels, incontinence pads or napkins
    • A61F13/475—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means
    • A61F13/4751—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means the means preventing fluid flow in a transversal direction
    • A61F13/4755—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means the means preventing fluid flow in a transversal direction the means being a flat barrier on or inside the absorbent article, e.g. backsheet wrapped around the edges
    • 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
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/494—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means
    • A61F13/49406—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being at the crotch region
    • 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
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • B29C65/083—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations using a rotary sonotrode or a rotary anvil
    • B29C65/086—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations using a rotary sonotrode or a rotary anvil using a rotary anvil
    • 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/21—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being formed by a single dot or dash or by several dots or dashes, i.e. spot joining or spot welding
    • 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/23—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations
    • B29C66/232—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations said joint lines being multiple and parallel, i.e. the joint being formed by several parallel joint lines
    • 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
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • 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
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/433—Casing-in, i.e. enclosing an element between two sheets by an outlined seam
    • 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
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/436—Joining sheets for making articles comprising cushioning or padding materials, the weld being performed through the cushioning material, e.g. car seats
    • 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
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/438—Joining sheets for making hollow-walled, channelled structures or multi-tubular articles
    • 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
    • B29C66/7234—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 comprising a barrier layer
    • B29C66/72343—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 comprising a barrier layer for liquids
    • 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
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81415—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled
    • B29C66/81419—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled and flat
    • 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
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81433—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined being toothed, i.e. comprising several teeth or pins, or being patterned
    • 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
    • B29C66/83411—Roller, cylinder or drum types
    • 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
    • B29C66/83411—Roller, cylinder or drum types
    • B29C66/83415—Roller, cylinder or drum types the contact angle between said rollers, cylinders or drums and said parts to be joined being a non-zero angle
    • 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
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/494—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means
    • A61F13/49473—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means having a continuous closed form, e.g. circle, ellipse, rectangle
    • 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
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/45—Joining of substantially the whole surface of the articles
    • 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
    • B29C66/729—Textile or other fibrous material made from plastics
    • B29C66/7294—Non woven mats, e.g. felt
    • B29C66/72941—Non woven mats, e.g. felt coated
    • 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
    • B29C66/8351—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws
    • B29C66/83511—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws jaws mounted on rollers, cylinders or drums
    • 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

Abstract

The invention relates to an absorbent article (1), intended for absorption of body fluids, having a longitudinal direction and a transverse direction and exhibiting a liquid-pervious surface (2), a liquid-impervious surface (3), and an absorbent body (4) arranged between the two surfaces (2, 3), and further exhibiting two longitudinal side edges (12, 13) extending in the longitudinal direction of the article and two transverse end edges (10, 11) extending in the transverse direction of the article. A number of air-filled channels (18), or material folds, are arranged on and projecting from the liquid-pervious surface (2) parallel to each other at least along one of the edges (12, 13; 40) of the article. The invention also relates to a method of manufacturing a laminate with air-filled channels.

Description

15 20 25 30 35 512 639 2 9402337-1. Gemensamt för dessa är att de är behäftade med nackdelar exempelvis genom att ha en så komplicerad konstruktion att de är svåra och dyra att tillverka. Andra nackdelar förknippade med tidigare kända läckagebarriärer, är att de ofta bildar hårda, skavande kanter och därför orsakar obehag för en användare av ett alster försett med en sådan läckagebarriär. Vidare uppnås med ett flertal av de tidigare kända läckagebarriärerna inte ett tillräckligt gott läckageskydd. 15 20 25 30 35 512 639 2 9402337-1. Common to these is that they suffer from disadvantages, for example by having such a complicated construction that they are difficult and expensive to manufacture. Other disadvantages associated with previously known leakage barriers are that they often form hard, abrasive edges and therefore cause discomfort to a user of an article provided with such a leakage barrier. Furthermore, with a number of the previously known leakage barriers, a sufficiently good leakage protection is not achieved.

Det kvarstår således ett stort behov av ett absorberande alster med förbättrat sidokantläckageskydd.Thus, there remains a great need for an absorbent article with improved side edge leakage protection.

BESKRIVNING AV UPPFINNINGEN: Vid ett sätt att tillverka ett absorberande alster av det i inledningen omtalade slaget, är det emellertid i enlighet med uppfinningen möjligt att åstadkonuna ett materiallaminat som erbjuder en avsevärt förhöjd läckagesäkerhet då det används på ett absorberande alster.DESCRIPTION OF THE INVENTION: In a method of making an absorbent article of the type mentioned in the introduction, however, in accordance with the invention it is possible to provide a material laminate which offers a considerably increased leakage safety when used on an absorbent article.

Sättet enligt uppfinningen, varvid en första materialbana och en andra materialbana binds samman i ett intermittent bindningsmönster utmärks därvid främst av att den första materialbanan bringas att passera över en bindningsvals försedd med bindningsytor i form av ett antal ringformigt från valsens yta utskjutande flänsar, eller rader av utskott med mellanliggande utrymmen i form av ringformiga rillor eller nedsänkta spår varvid den första materialbanan bringas att formas efter bindningsvalsens yta medelst styrfingrar vilka pressar in den första materialbanan i de mellanliggande utrymmena mellan bindningsytorna, samt att den andra materialbanan förs samman med den första materialbanan, varefter de bådarnaterialbanorna sammanbinds vid bindningsytorna.The method according to the invention, wherein a first web of material and a second web of material are bonded together in an intermittent bonding pattern is characterized in that the first web of material is passed over a bonding roller provided with bonding surfaces in the form of a number of annular flanges projecting from the roller surface. projections with intermediate spaces in the form of annular grooves or recessed grooves, the first web of material being formed after the surface of the bonding roller by means of guide fingers which press the first web of material into the intermediate spaces between the bonding surfaces, and the second web of material being joined to the first web of material. the web webs are bonded together at the bonding surfaces.

J! 10 15 20 25 30 35 512 639 3 Materialvecken kan formas så att de är regelbundet eller oregelbundet arrangerade över materialytan, samt variera till form och storlek.J! 10 15 20 25 30 35 512 639 3 The material folds can be shaped so that they are regularly or irregularly arranged over the material surface, and vary in shape and size.

Ytterligare utföringsformer och modifikationer framgår av de efterföljande patentkraven.Further embodiments and modifications appear from the following claims.

KORT BESKRIVNING AV RITNINGARNA: Uppfinningen skall i det följande beskrivas närmare under hänvisning till på de bifogade ritningarna visade utföringsexempel.BRIEF DESCRIPTION OF THE DRAWINGS: The invention will be described in more detail below with reference to exemplary embodiments shown in the accompanying drawings.

Därvid visar: figur 1 en svetsvals med styrfingrar för formande av' ett materialskikt efter svetsvalsens Yta; figur 2 ett längdsnitt genom en del av svetsvalsen i figur 4 tillsammans med två materialskikt; figur 3 en schematisk illustration av en tillverkningsprocess enligt uppfinningen; figur 4 en uppförstorad del av den i figur 6 visade tillverkningsprocessen; figur 5 ett materiallaminat av vilket kæmixuriärer enligt uppfinningen kan bildas och figur 6 ytterligare ett materiallaminat för bildande av kantbarriärer.In the drawing: figure 1 shows a welding roller with guide fingers for forming a material layer along the surface of the welding roller; figure 2 shows a longitudinal section through a part of the welding roller in figure 4 together with two layers of material; figure 3 is a schematic illustration of a manufacturing process according to the invention; Figure 4 is an enlarged part of the manufacturing process shown in Figure 6; Figure 5 shows a material laminate from which chemical laminators according to the invention can be formed, and Figure 6 shows a further material laminate for forming edge barriers.

IHHIH! YIHIIHIIIIHI|||I|\IIIHIIIHIIIH\HHI\IIIII\_I1\IIIIHNHIIIHIIIHIHIHIMHIHNIIIIIIHH!IIIIIIII\l|\l\\l\|\||l|\|\IlllIl||\|\\ nnllnllx uvllu umum-nxxnx ||\|ll|uu|||l|l\||||n|n x || m muIm-nnnnnfl ,_, F w i _ im ,. U m» h: .- H _- p» ..» ,| »1 »_31 . yylmyyl, \ mfwzlvii» “win Hn|||h|nu|1|| nu nnm-uïnw mn-m um u u ümnuunuu mnmnun | .M m... | wmun-“nfiiiw iwiínuui w ii miiiilíiiwWïrfkiii' i ' 10 15 20 25 30 35 512 639 4 BESKRIVNING AV UTFÖRINGSEXEMPEL: I figurerna 1-4 illustreras ett sätt att åstadkomma ett materiallaminat 60 vilket kan användas för framställning av läckagehindrande barriärer till absorberande alster. Vid tillverkningen bildas ett laminat 60 av en första materialbana 61 och en andra materialbana 62 genom att de båda materialbanorna 61,62 matas in mellan en svetsvals 67 och ett ultraljudshorn 68 och binds samman. Såsom visas i figur 1 har svetsvalsen 67 ett flertal cirkulära flänsar 69, vilka tjänar som mothåll till ultraljudshornet 68 vid bindningsprocessen. I utrymmena 70 mellan flänsarna 69 är styrfingrar 71 anordnade. Den första materialbanan matas mot svetsvalsen 67, mellan denna och styrfingrarna 71, så att styrfingrarna 71 trycker ned materialbanan 61 i utrymmena 70 mellan flänsarna 69. Därigenom veckas materialbanan 61 i längdriktningen såsom visas i genomskärning i figur 2. Efter veckningen av den första materialbanan 61 förs denna samman med den andra materialbanan 62 och de båda materialbanorna 61,62 binds samman genom ultraljudsbindning mellan flänsarna 69 och ultraljudshornet 68.IHHIH! YIHIIHIIIIHI ||| I | \ IIIHIIIHIIIH \ HHI \ IIIII \ _I1 \ IIIIHNHIIIHIIIHIHIHIMHIHNIIIIIIHH! IIIIIIII \ l | \ l \\ l \ | \ || l | \ | \ IlllIl || \ | \\ nnlln | \ | ll | uu ||| l | l \ ||||| n | nx || m muIm-nnnnn fl, _, F w i _ im,. U m »h: .- H _- p» .. », | »1» _31. yylmyyl, \ mfwzlvii »“ win Hn ||| h | nu | 1 || nu nnm-uïnw mn-m um u u ümnuunuu mnmnun | .M m ... | wmun- 'n fi iiw iwiínuui w ii miiiilíiiwWïrfkiii' i '10 15 20 25 30 35 512 639 4 DESCRIPTION OF EMBODIMENTS: Figures 1-4 illustrate a method of making a material laminate 60 which can be used to produce barriers to leakage. In manufacture, a laminate 60 is formed of a first web of material 61 and a second web of material 62 by feeding the two webs of material 61,62 between a welding roller 67 and an ultrasonic horn 68 and bonding them together. As shown in Figure 1, the welding roller 67 has a plurality of circular flanges 69, which serve as abutments to the ultrasonic horn 68 in the bonding process. In the spaces 70 between the flanges 69, guide fingers 71 are arranged. The first web of material is fed against the welding roller 67, between it and the guide fingers 71, so that the guide fingers 71 press the web of material 61 into the spaces 70 between the flanges 69. Thereby the web of material 61 is folded in the longitudinal direction as shown in cross-section in Figure 2. this is brought together with the second material web 62 and the two material webs 61,62 are bonded together by ultrasonic bonding between the flanges 69 and the ultrasonic horn 68.

I figur 3 visas hela tillverkningsprocessen schematiskt, medan figur 4 visar en förstoring av sammanbindningssteget i tillverkningsprocessen. De cirkulära flänsarna 69 är i figur 4 visade som en mångfald piggar 72, eller utskott, vilket innebär att sammanbindningen av de båda materialbanorna 61,62 sker intermittent. Genom att mata den första materialbanan 61 med en hastighet som är något högre än hastigheten hos den andra materialbanan 62, närmare bestämt med en hastighet som är 101%-200% av den andra materialbanans 62 hastighet, erhålls en veckning av den första materialbanan 61 även i tvärriktningen, såsom framgår i figur 4. 10 15 20 25 30 35 512 639 5 I figur 5 och 6 visas stycken av materiallaminat 80,90 framställda enligt det i det föregående beskrivna sättet.Figure 3 shows the entire manufacturing process schematically, while Figure 4 shows an enlargement of the interconnection step in the manufacturing process. The circular flanges 69 are shown in Figure 4 as a plurality of spikes 72, or projections, which means that the interconnection of the two material webs 61,62 takes place intermittently. By feeding the first web of material 61 at a speed slightly higher than the speed of the second web of material 62, more precisely at a speed which is 101% -200% of the speed of the second web of material 62, a folding of the first web of material 61 is also obtained. in the transverse direction, as shown in Figure 4. Figures 5 and 6 show in pieces 5 and 6 pieces of material laminate 80,90 made according to the method described above.

Den i figur 5 visade materialbanan 80 består av ett första materialskikt 81, samt ett andra materialskikt 82. De båda materialskikten 81,82 är inbördes förbundna genom svetsar anordnade i nmterialbanans löpriktning. Svetsarna utgör punktformiga bindningar 84 anordnade i dubbla rader 85 alternerande med mellanliggande längsgående obundna partier 86 vilka bildar upphöjda materialveck på laminatets 80 yta. Även det i figur 6 visade materiallaminatet 90, uppvisar en rynkad yta och kan användas för åstadkommande av en vätskeflödesbarriär på ett absorberande alster. Laminatet är framställt utan användning av de i samband med tillverkningsprocessen beskrivna styrfingrarna. Graden av rynkighet avgörs därvid av den relativa hastigheten med vilken den första materialbanan 91 matas fram i förhållande till den andra materialbanan 92, samt av bindningstätheten och bindningsmönstret.The material web 80 shown in Figure 5 consists of a first material layer 81, and a second material layer 82. The two material layers 81, 82 are interconnected by welds arranged in the running direction of the material web. The welds form point-shaped bonds 84 arranged in double rows 85 alternating with intermediate longitudinal unbound portions 86 which form raised material folds on the surface of the laminate 80. Also, the material laminate 90 shown in Figure 6 has a wrinkled surface and can be used to provide a liquid flow barrier on an absorbent article. The laminate is made without the use of the guide fingers described in connection with the manufacturing process. The degree of wrinkling is then determined by the relative speed at which the first web of material 91 is fed relative to the second web of material 92, as well as by the bonding density and the bonding pattern.

Ett annat sätt att tillverka ett materiallaminat exempelvis av det slag som visas i figur 6, är genom att sträcka ut det andra materialskiktet 82 i materialbanans löpriktning.Another way of manufacturing a material laminate, for example of the type shown in Figure 6, is by extending the second material layer 82 in the running direction of the material web.

Det är därvid väsentligt att det andra materialskiktet 82 uppvisar viss elasticitet, så att det har förmåga att helt eller delvis återgår till sin ursprungliga längd, då utsträckningen upphör. De båda materialskikten 81,82 sammanbinds medan det andra materialskiktet 82 hålls utsträckt, varefter utsträckningen upphör och det andra materialskiktet 82 tillåts dra samman sig. Därvid bildar de obundna partierna 86 luftfyllda, tvärgående materialveck, eller kanaler mellan svetsraderna 85 i materialbanan 80, genom att det första materialskiktet 81 veckas då den hopsvetsade materialbanan dras samman. .i wflhih | i MWÉQÄ u h infiinin|||||| Nunn-m. “Hmm .N ïfÉ .t g š H|N|HUIH HIH \|\|||| HIHHHIII l|\||\|\|\||\\\\||IIIHIIIMHIHH\|\|\|\||\ HHIIVIHHMII|||\||I\||\|||\|||\ln|||'|n|| NIIIIIHIHIIIHM||:H!||lm Mum uu- \|||\|H\;n|||u wmnmwnwwwnmnwwinw | wu um | uumwn|||wuuiinnmwxwwwwuhiwnwnfliuiinun||inuxil|ini|uuiunlhniiuuimumiiåiiiiiiiixunnmfimiånu»»niiiílm 10 15 20 25 30 35 512 639 6 Ett alternativt sätt att åstadkomma den i figur 6 visade materiallaminatet 80, är genom att binda samma två materialskikt 81,82 som valts så att det ena skiktet 82 krymper' mer än det andra skiktet 81 då skikten 81,82 utsätts för krympbehandling, exempelvis genom värmning.It is then essential that the second material layer 82 has a certain elasticity, so that it is able to return in whole or in part to its original length when the extension ceases. The two material layers 81, 82 are bonded together while the second material layer 82 is kept stretched, after which the extension ceases and the second material layer 82 is allowed to contract. Thereby, the unbound portions 86 form air-filled, transverse material folds, or channels between the rows of welds 85 in the material web 80, by the first material layer 81 being folded when the welded material web is contracted. .i w fl hih | i MWÉQÄ u h in fi inin ||||||| Nunn-m. “Hmm .N ïfÉ .t g š H | N | HUIH HIH \ | \ ||||| HIHHHIII l | \ ||| \ | \ | \ || \\\\ || IIIHIIIMHIHH \ | \ | \ | \ || \ HHIIVIHHMII ||| \ || I \ || \ ||| \ ||| ln ||| '| n || NIIIIIHIHIIIHM |||: H! || lm Mum uu- \ ||| \ | H \; n ||| u wmnmwnwwwnmnwwinw | wu um | uumwn ||| wuuiinnmwxwwwwuhiwnwn fl iuiinun || inuxil | ini | uuiunlhniiuuimumiiåiiiiiiiiixunnm fi miånu »» niiiílm 10 15 20 25 30 35 512 639 6 An alternative way of achieving the material as shown in Figure 80 is the same material as 81. that one layer 82 shrinks more than the other layer 81 when the layers 81, 82 are subjected to shrinkage treatment, for example by heating.

Materialskikten 81,82 binds samman utefter ett antal åtskilda bindningslinjer, krympbehandlas, så att det andra materialskiktet 82 drar samman sig under det att det första materialskiktet 81 varefter materialbanan veckas.The material layers 81,82 are bonded together along a number of separate bonding lines, shrink-treated, so that the second material layer 82 contracts while the first material layer 81 is folded, after which the material web is folded.

Det är naturligtvis möjligt att binda samman de båda materialskikten på annat vis än genom användning av ultraljud. Således är det exempelvis möjligt att svetsa med värme, eller att limma samman skikten.It is of course possible to bond the two layers of material together in other ways than by using ultrasound. Thus, for example, it is possible to weld with heat, or to glue the layers together.

Uppfinningen skall inte anses vara begränsad av de här beskrivna utföringsexemplen. Således omfattar uppfinningen alla typer av alster avsedda för absorption av kroppsvätskor och där ett förbättrat kantläckageskydd önskas.The invention should not be construed as being limited by the embodiments described herein. Thus, the invention encompasses all types of articles intended for the absorption of body fluids and where an improved edge leakage protection is desired.

Vidare är det möjligt att inom ramen för patentkraven tänka sig varianter och kombinationer av de beskrivna utföringsexemplen.Furthermore, it is possible to imagine variants and combinations of the described exemplary embodiments within the scope of the claims.

I de beskrivna utföringsexemplen, har alstrens vätskegenomsläppliga yta, respektive deras vätskeogenomträngliga yta beskrivits som särskilda materialskikt. Ett sådant arrangemang är emellertid inte nödvändigt. Det är således tänkbart att ett, eller båda höljesskikten integrerad del av alstrets absorptionskropp. Exempelvis kan en absorptionskropp av skummaterial vara bildad med en skinnliknande, vätsketät yta, som kan tjäna som vätskeogenomträngligt höljesskikt. utgör en På motsvarande vis kan en absorptionskropp av skummaterial, 512 639 7 eller absorberande nonwovenmaterial ha en vätskegenomsläpplig yta med lämpliga egenskaper för att kunna ersätta ett särskilt vätskegenomsläppligt höljesskikt.In the described exemplary embodiments, the liquid-permeable surface of the articles and their liquid-impermeable surface, respectively, have been described as special material layers. However, such an arrangement is not necessary. It is thus conceivable that one or both casing layers are an integral part of the absorbent body of the article. For example, an absorbent body of foam material may be formed with a skin-like, liquid-tight surface, which can serve as a liquid-impermeable cover layer. Correspondingly, an absorbent body of foam material, or absorbent nonwoven material may have a liquid-permeable surface with suitable properties to be able to replace a special liquid-permeable cover layer.

Claims (3)

10 15 20 25 30 512 639 107034ARe 2000-01-21 PATENTKRAV10 15 20 25 30 512 639 107034ARe 2000-01-21 PATENTKRAV 1. Sätt att framställa ett materiallaminat för användning i ett absorberande alster enligt krav 1, varvid en första materialbana (61) och en andra materialbana (62) binds samman i ett intermittent bindningsmönster, k ä n n e t e c k n a t av att den första materialbanan (61) bringas att passera över en bindningsvals (67) försedd med bindningsytor (69) i form av ett antal ringformigt från valsens yta utskjutande flänsar, eller rader av utskott med mellanliggande utrymmen (70) i form av ringformiga rillor eller nedsänkta spår varvid den första materialbanan (61) bringas att formas efter bindningsvalsens (67) yta medelst styrfingrar (71) vilka pressar in den första materialbanan (61) i de mellanliggande utrymmena (70) mellan bindningsytorna (69), samt att den andra materialbanan (62) förs samman med den första materialbanan (61), varefter de (6l,62) sammanbinds vid båda materialbanorna bindningsytorna (69).A method of making a material laminate for use in an absorbent article according to claim 1, wherein a first web of material (61) and a second web of material (62) are bonded together in an intermittent bonding pattern, characterized in that the first web of material (61) is brought passing over a bonding roller (67) provided with bonding surfaces (69) in the form of a number of annular flanges projecting from the surface of the roller, or rows of projections with intermediate spaces (70) in the form of annular grooves or recessed grooves, the first web of material (61 ) is caused to be formed after the surface of the bonding roller (67) by means of guide fingers (71) which press the first web of material (61) into the intermediate spaces (70) between the bonding surfaces (69), and that the second web of material (62) is brought together with the first the web (61), after which they (61, 62) are bonded together at both webs of bonding surfaces (69). 2. Sätt enligt krav 1, k ä n n e t e c k n a t av att sammanbindningen sker med ultraljud.2. A method according to claim 1, characterized in that the connection takes place with ultrasound. 3. Sätt enligt krav 1 eller 2, k ä n n e t e c k n a t av att den första materialbanan (61) matas fram med en första hastighet och den andra materialbanan (62) matas fram med en andra hastighet varvid den första hastigheten är 101%- 200% av den andra hastigheten. ÅlMethod according to claim 1 or 2, characterized in that the first web of material (61) is fed at a first speed and the second web of material (62) is fed at a second speed, the first speed being 101% - 200% of the second speed. Eel
SE9604480A 1996-12-05 1996-12-05 Methods of preparing a material laminate for use in an absorbent article SE512639C2 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
SE9604480A SE512639C2 (en) 1996-12-05 1996-12-05 Methods of preparing a material laminate for use in an absorbent article
PCT/SE1997/001954 WO1998024389A1 (en) 1996-12-05 1997-11-21 Absorbent article with improved leakage security
AU54205/98A AU5420598A (en) 1996-12-05 1997-11-21 Absorbent article with improved leakage security
PE1997001061A PE26299A1 (en) 1996-12-05 1997-11-24 ABSORBING ARTICLE WITH BETTER SECURITY AGAINST FILTRATION
ZA9710699A ZA9710699B (en) 1996-12-05 1997-11-27 Absorbent article with improved leakage security.
TNTNSN97199A TNSN97199A1 (en) 1996-12-05 1997-12-03 AN ABSORBENT ARTICLE WITH IMPROVED ANTI-LEAKAGE SECURITY.
TW086118254A TW398972B (en) 1996-12-05 1997-12-04 Absorbent article intended for absorption of body fluid, and method of manufacturing a material laminate for use in said article
CO97071435A CO4890835A1 (en) 1996-12-05 1997-12-05 ABSORBING ARTICLE WITH IMPROVED SPILL SAFETY

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JP3490291B2 (en) * 1998-05-18 2004-01-26 ユニ・チャーム株式会社 Absorbent articles
US6673982B1 (en) 1998-10-02 2004-01-06 Kimberly-Clark Worldwide, Inc. Absorbent article with center fill performance
US6503233B1 (en) 1998-10-02 2003-01-07 Kimberly-Clark Worldwide, Inc. Absorbent article having good body fit under dynamic conditions
SE518434C2 (en) * 1999-10-15 2002-10-08 Mariana Dehlin Refill diaper with air-filled outer edge and adjustable straps
JP3609361B2 (en) 2000-10-12 2005-01-12 花王株式会社 Three-dimensional sheet material
EP1283028B1 (en) * 2001-08-10 2008-03-05 Kao Corporation Topsheet for absorbent article
US6676003B2 (en) 2001-12-18 2004-01-13 Kimberly-Clark Worldwide, Inc. Rigid isolation of rotary ultrasonic horn
US6547903B1 (en) 2001-12-18 2003-04-15 Kimberly-Clark Worldwide, Inc. Rotary ultrasonic bonder or processor capable of high speed intermittent processing
US6620270B2 (en) 2001-12-18 2003-09-16 Kimberly-Clark Worldwide, Inc. Control of processing force and process gap in rigid rotary ultrasonic systems
US6537403B1 (en) 2001-12-18 2003-03-25 Kimberly-Clark Worldwide, Inc. Nip adjustment for a rigid ultrasonic bonder or processor
US6613171B2 (en) 2001-12-18 2003-09-02 Kimberly-Clark Worldwide, Inc. Rotary ultrasonic bonder or processor capable of fixed gap operation
JP3611838B2 (en) 2001-12-28 2005-01-19 花王株式会社 Top sheet for absorbent articles
RU2445056C1 (en) * 2007-12-21 2012-03-20 Ска Хайджин Продактс Аб Absorbing product with aerated upper layer
US8575418B2 (en) 2007-12-21 2013-11-05 Sca Hygiene Products Ab Absorbent article with ventilated topsheet
CN104379102B (en) * 2012-07-04 2016-08-24 株式会社瑞光 The ultrasonic connection method of absorbent commodity, the ultrasonic bonding equipment of absorbent commodity and absorbent commodity
CN114504437A (en) * 2020-11-16 2022-05-17 叶正瑜 Sanitary towel capable of preventing side leakage

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US4397645A (en) * 1981-02-24 1983-08-09 The Procter & Gamble Company Disposable absorbent article having an improved liquid containment construction
JP3579905B2 (en) * 1992-12-11 2004-10-20 株式会社日本吸収体技術研究所 Diaper

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