TW200819068A - A seam joining together at least two web materials - Google Patents

A seam joining together at least two web materials Download PDF

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Publication number
TW200819068A
TW200819068A TW096119494A TW96119494A TW200819068A TW 200819068 A TW200819068 A TW 200819068A TW 096119494 A TW096119494 A TW 096119494A TW 96119494 A TW96119494 A TW 96119494A TW 200819068 A TW200819068 A TW 200819068A
Authority
TW
Taiwan
Prior art keywords
pattern
seam
joint
edge
joint pattern
Prior art date
Application number
TW096119494A
Other languages
English (en)
Inventor
Lucas Back
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
Publication of TW200819068A publication Critical patent/TW200819068A/zh

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15577Apparatus or processes for manufacturing
    • A61F13/15707Mechanical treatment, e.g. notching, twisting, compressing, shaping
    • A61F13/15739Sealing, e.g. involving cutting
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15577Apparatus or processes for manufacturing
    • A61F13/15756Applying tabs, strips, tapes, loops; Knotting the ends of pads
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45Absorbent 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
    • A61F13/49Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/49007Form-fitting, self-adjusting disposable diapers
    • A61F13/49009Form-fitting, self-adjusting disposable diapers with elastic means
    • A61F13/49014Form-fitting, self-adjusting disposable diapers with elastic means the elastic means is located at the side panels
    • A61F13/49015Form-fitting, self-adjusting disposable diapers with elastic means the elastic means is located at the side panels the elastic means being elastic panels
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45Absorbent 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
    • A61F13/49Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/496Absorbent articles specially adapted to be worn around the waist, e.g. diapers in the form of pants or briefs
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/56Supporting or fastening means
    • A61F13/5622Supporting or fastening means specially adapted for diapers or the like
    • A61F13/565Supporting or fastening means specially adapted for diapers or the like pants type diaper
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • B29C65/083Joining 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
    • B29C65/086Joining 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
    • BPERFORMING OPERATIONS; TRANSPORTING
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    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11Joint 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
    • B29C66/112Single lapped joints
    • B29C66/1122Single lap to lap joints, i.e. overlap joints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/20Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/21Particular 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/20Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/23Particular 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
    • B29C66/232Particular 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/40General 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
    • B29C66/41Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43Joining a relatively small portion of the surface of said articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General 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
    • B29C66/72General 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
    • B29C66/729Textile or other fibrous material made from plastics
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/83General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834General 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
    • B29C66/8341Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83411Roller, cylinder or drum types
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
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    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16Laser beams
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General 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
    • B29C66/71General 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General 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
    • B29C66/72General 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
    • B29C66/723General 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
    • B29C66/7234General 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
    • B29C66/72343General 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General 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
    • B29C66/72General 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
    • B29C66/727General 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 porous, e.g. foam
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    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General 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
    • B29C66/72General 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
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    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General 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
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    • B29C66/70General 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
    • B29C66/73General 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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739General 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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392General 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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
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    • B29K2105/00Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/08Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
    • B29K2105/0854Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns in the form of a non-woven mat
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    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING 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
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    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
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Description

200819068 九、發明說明: 【發明所屬之技術領域】 發明領域 本發明係有關可將至少第一和第二網狀材料接合在一 5起之接縫,該二材料之至少一者包含可熱熔材料,該第一 網狀材料具有一側緣會與第二網狀材料之一側緣重疊,其 中有一重豐部份係形成於該等網狀材料重疊處。在該重疊 部份的網狀材料會被藉超音波焊接、熱結合、雷射焊接或 類似手段等,以-延伸至少一部份該重疊部份的接合圖案 10來接合在一起而形成該接缝。 【先前技術】 發明背景 15 20 包含有可熱溶材料,不論是纖維網、膜或其疊層等之 =狀材料會被使用於許多用途,例如保護性衣物和衛生用 品’尤其是可棄式吸收性個人照護用品,例如尿布、衛生 棉和失禁雜等。在大部份的該等用途中,該等網狀材 料必須被接合,其傳統上係、藉超音波焊接、絲接、雷射 卜接或以黏劑來完成。以超音波焊接、祕接或雷射焊接 ,接合通常係藉形成-接合圖案來達成,該接合圖案包含 其中該等網狀材料的可·成分會被炼化 該接σ係在-生產線上進行,其中可能發生材料 ^及製程變化,此將會影響該接合㈣機於該等網^ 之重豐側緣的確實定位。假使該接合圖案的末端相對於 5 200819068 重疊處有-點偏差,則該重疊邊緣會由接合的網狀材料表 面突出。此將會減低該接縫和該產品的品質且若使用在 -會貼抵著㈣者錢的產品中,此等突出的邊緣可能會 . 造成皮膚的刺激過敏。
US-A-5,919,539專利案揭冑t 纺黏聚稀烴片的超音波縫合。該等重疊的料片邊緣會被饋 入-超音波導件與-_化滾輪之間,該滾輪具有一高凸 的圖案對應於所需的接合圖案。一烙餅狀的接合圖案會被 造成,且該等料片邊緣會被焊合,而可避免料片邊緣沿該 接縫突出。 US-A-5,626,574專利案係指一種可棄式尿片,其具有一 前體片與-後體片被以超音波焊接來互相接合而形成側邊 接縫。該等焊接的侧接縫係由不同形狀之間斷排列的接合 點圖案來界定。其目的是為造成一焊接圖案,可容許該等 15側接縫沿著焊接區被縱向地撕開。 US_A_4,938,817專利案示出一種用以接合二重疊材料 疋的烊接圖案,该焊接圖案包含許多短段線會平行於該織 物的邊緣延伸。 US_A-4,205,679專利案揭露一種可棄式的内衣,其中一 2〇強固的超音波焊接縫係由多數的焊接線所形成,它們會沿 重疊的側緣之縱向並與該等重疊邊緣朝内相隔地延伸。 針對用以將上述種類之至少二網狀材料接合在一起之 改良的接縫接合圖案仍極為需要,該接合圖案係能提供一 沿該重疊處的強固接縫,及沿該接缝有較少突出邊緣的風險。 6 200819068 【發明内容3 發明概要 本發明的目的係為解決上述問題,並建議該接合圖案 . 包含一主接合圖案沿該重疊部的至少一部份以縱向延伸, 5 及至少一邊緣接合圖案沿著並鄰近至少一所述側緣的至少 一部份以縱向延伸,該等邊緣接合圖案的接合面積會占去 該主接合圖案加邊緣接合圖案之總接合面積的不多於 30%。 ® 此乃意指被該等邊緣接合圖案之接合處所占的面積應 10 不大於該等邊緣接合圖案加主接合圖案之接合處所占之總 面積的30%。 該主接合圖案會提供一沿該重疊部的強固接縫,而該 邊緣接合圖案會沿該重疊部接合該等側緣。由於該邊緣接 合圖案具有受限的接合面積,故在此接缝區域中的柔軟性 - 15 和可撓性實質上能被保持。 在一實施例中,該邊緣接合圖案占有結合中央接合圖 案與邊緣接合圖案所占之總接合面積的至少5%,更好為至 少7%。 在另一態樣中,該邊緣接合圖案占有結合中央接合圖 20 案與邊緣接合圖案所占之總接合面積的不多於25%。 該邊緣接合圖案可形成許多小接合處,其各具有不大 於4mm2的面積。 該中央接合圖案係被一外界線沿縱向y來界定,且該邊 緣接合圖案係被一内界線沿縱向y來界定,而在一實施例中 7 200819068 該外界線與内界線之間的距離為至少〗.5mm。 依據一實施例,該接合圖案包含二邊緣接合圖案,各 有其一設在該中央接合圖案的兩側邊。 — 該二邊緣接合圖案的内界線之間距,在一實施例中係 5為該接縫沿橫向χ之寬度的25至95%,較好在3〇至8〇%之間。 該接縫沿橫向X的寬度,依本發明之一態樣係在8至 3 0mm之間。 依據一實施例,該主中央接合圖案具有一 1〇至8〇%的 接合密度,較好是在20至60%之間。依據另一實施例,該 10邊緣接合圖案具有一至少2%而不大於60%的接合密度,較 好是不大於50%,且更好不大於3〇0/〇。 > ‘‘接合密度,,在此係被定義為各接合處所占的面積相對 於该接合圖案所涵蓋包括各接合處間之未接合區域的整體 面積之比例。 ~ 15 在本發明之一態樣中,該等網狀材料具有一 25至 130g/m2之間的單位重量。 釀纟本發明的另-態樣中,至少有—該等網狀材料係為 一彈性材料。 在又另一態樣中該接縫係存在於一個人照護吸收性產 2〇品中,其包含一吸收性結構物及第一和第二網狀材料含有 可熱熔材料接合在一起來形成該接缝。 孩個人照言隻吸收性產品在一實施例中係為一裤形衣 物’包含-第-本體H二本體片及—袴部介於其間, 該弟-和第二本體片係以重疊方式藉一所述的接合圖案來 8 200819068 形成侧邊接點造成所述接縫而被接合在一起。 在另一實施例中,該個人照護吸收性產品係為一褲形 衣物,其包含一第一本體片,一第二本體片及一袴部介於 — 其間,該第一和第二本體片係接合在一起來形成側邊接 ‘ 5點,並更設有一彈性腰帶,該腰帶係以重疊方式藉一上述 的接合圖案形成該接缝而被接合於該第一及/或第二本體片。 在又另一實施例中,該個人照護吸收性產品係為一種 吸收性衣物,例如一尿片及失禁護塾,其包含一第一本體 ® 片,一第二本體片,及一袴部介於其間,該第一和第二本 10體片各具有一腰部,該衣物更設有相反地橫向延伸之帶件 附接於該第一本體片的腰部,而可被捲繞該衣物之穿用者 的腰部並利用第一固緊裝置來固接在一起,該第二本體片 在其腰部設有第二固緊裝置可被固接於該帶件,以此方式 該衣物將會呈顯一褲狀造型,該等帶件則以重疊方式被一 — 15 如所述可形成該接缝的接合圖案來接合於第一本體片。 圖式簡單說明 本發明將參照被示於所附圖式中的一些實施例來更詳 細地說明於後。 第la圖示出二重疊的網狀材料間之一焊接縫的側視示 20 意圖。 第lb圖係為一對應的視圖示出一接合圖案其係比該等 網料之間的重疊部更窄些。 第2a圖示出一超音波焊接設備在二重疊的網狀材料之 間產生一焊接缝的側視示意圖。 9 200819068 第%圖為—對應的視圖示出該超音波設備相對於 網狀材料間的重疊部份位在有點偏差處。 '、 合的為二重疊的網狀材料本發明的接合圖案接 5份為一對應視围但示出該接合圓案相對於重叠部 來接:4:::係為二重4的網狀材心可擇的接合圖案 第5圖為—褲型吸收性產品的立體圖。 10 第6圖為一帶式尿片的平面圖。 產品第7圖示出第6圖之-細部的放大圖,即該帶附接於該 t實施方式3 較佳實施例之詳細說明 15 fla及1b圖係概示出二重疊的網狀材料1和2,其中至 20 少有-者包含可熱溶材料。該等網疋可為—種纖維的 材料,-塑膠膜或其疊層等。在該二網疋之間的重疊部份 係以編號3來標示。該等網疋1#σ2係在重疊部份被—包含= 數接合處的接合圖案4所接合。該接合係以該領域中 知的方法來達成,例如超音波焊接,熱溶接,雷射焊接等 等,其中該可熱溶材料會被炫化而使該二網疋_接合在 -起。如此接合的重疊部份會形成—將該二網狀材料㈣ 接合在-起的接縫。該接缝係位在與該二網狀材料相同的 平面中。該二網疋皆有延伸在該重疊部份外的部份。 10 200819068 在第1a圖中該重疊部份3係相當窄,且該接合圖案4會 申、及,亥重$部份的整個寬度。故該二網狀材料各自的 側緣1啦a會靠近於簡合w#4的邊緣。此係為—所希求 $的接縫外觀,但在_以高速運作的生產線上會難以達成。 s子犯使4 一網狀材料1和2覆蓋整個接合圖案4。假使 該接合圖案4伸到該重疊部份3外面,則在該區域處將不會 產生接合,此乃意味著其接合面積會變得較小,故在實際 的接=區域中能i轉會增加,而可能造成該材料被燒穿。 第lb圖示出一重疊部份3係比該接合圖案4的寬度更 10寬。該等網狀材料的側緣以和以會延伸超過該接合圖案的 邊緣。此在生產線上會較容易達成,但並非如所希求之在 第la圖中的接縫,因為該等網狀材料的側緣姆%會由該 等網狀材料的平面突出。 第2a和2b圖係為一超音波焊接設備的側視示意圖,其 Ιέ超音波導件5與一站輪6具有一凸體7的圖案可產生 該接合圖案。有一對重疊的網狀材料丨和2會穿過該超音波 導件5和砧輪6之間的間隙,而被超音波焊接在一起。該超 曰波的旎篁會使被壓抵著該導件5的網狀材料部份暫時地 熔化,而使在該砧輪6之凸體7會將材料壓抵於該導件5之區 2〇域中的網狀材料接合在一起。如第2b圖中所示,假使產生 5亥接合圖案的凸體圖案7延伸至該二網狀材料的重疊部份 外面,則其接合面積會減少,而使每單位接合面積的超音 波能量增加。如前所述,此可能會造成該等網狀材料的燒穿。 故在一以高速度運作的生產線中,於網狀材料之間要 200819068 達到,Π貝的接縫會有問題,其中該等重疊部份的寬度 及/或其可能發生的確實位置切1小變異。 …本^月的目的係在推薦—種接合圖案,其較不敏感於 X等製权欠異’並且此提供—種高品質的接縫,即使當該 、5接合圖案的末端可能相對於網狀材料的重疊部份稍有偏差時。 依據本么明的接合圖案之例係被禾於第%及%圖 中。該接合圖案4包含一主接合圖案8沿該重疊部份3中央以 • 縱向Υ延伸,及邊緣接合圖案9等係沿該主接合圖案8的兩側 鄰j該等網狀材料之各自側緣la和2a以縱向延伸。在一變 10化貫施例巾僅設有—邊緣接合圖案9,於此情況下該主接合 圖^乃可被相對於該重疊部份3的縱向中央偏移置設,而 車又罪近於未設有邊緣接合圖案9的相反側緣。 该主接合圖案8會比邊緣接合圖案9占用較大的接合面 積,而使該等邊緣接合圖案9占有結合該主接合圖案8和邊 緣接合圖案9所占之總接合面積的30%以下,較好不多於 25%。如前所述,此即是說被該等邊緣接合圖案9中的接合 處所占的面積,應不大於被該等邊緣接合圖案9加上主接合 固案8中的接合處所占有之總面積的3〇%。 假使有二邊緣接合圖案,各有其一在主接合圖案的每 2〇 一側,則較好是令該等邊緣接合圖案占有結合該等主接合 囷案與邊緣接合圖案所占之總接合面積的至少5%,更好為 至少7%。假使僅設有一邊緣接合圖案,則較好是令該邊緣 接a圖案占有結合$亥專主接合圖案與邊緣接合圖案所占之 總接合面積的2至20%之間。 12 200819068 该主接合圖案8在兩侧各有一縱向的外界線8a,該二界 線8a係沿主接合圖案的兩相反側正切於該主接合圖案。夂 邊緣接合圖案9皆具有一内界線9a,該内界線係沿所對應的 邊緣接合圖案面向主接合圖案8的側邊正切於該邊緣接合 5圖案9。在該主接合圖案8的外界線8a與各邊緣接合圖案9之 間的距離,於第3a圖中係被標示為a。該距離a較好為至少 1.5mm。 該二邊緣接合圖案的内界線9 a之間的距離較好係在該 重疊部份3沿橫向X之寬度的25至95%之間,更好係為如至 10 80%之間。 该主接合圖案8較好具有一接合密度係在1〇至8〇%之 間更好為20至60%,而該等邊緣接合圖案具有一接合密 度係為至少2%且不大於6〇%,較好不大於5〇%,又更好不 大於30%。 15 忒接合搶度係被定義為接合處所占的面積相對於被接 e圖木所/函盍包括各接合處之間的未接合區之整體面積的 比率。 第4a和4b圖示出依據本發明的接合圖案之變化例。 該邊緣接合圖案9較好係呈多數小接合處的形式,例如 20點^線或類似者,其各具有一不大於數咖2的面積。該主 接合圖案8可包含較大的接合處,或者多數的小接合處而被 設=比邊緣接合圖案9的接合處更為密集。該主接合圖案8 可&重豐部份3提供一強固的接縫,而該等邊緣接合圖案9 會將横向延伸超出該主接合圖案邊緣的側緣13、2&等平貼 13 200819068 接合。因為該邊緣接合圖案之接合面 、 預有限,故該接縫在 此區域的柔軟性和可撓性實質上能被保持。 在第3b圖中係示出—接合圖案4相對”重疊部份_ 微偏移。但該主接合圖案8係位在該重疊部份中,且僅有一 5邊緣接合圖案9的-部份橫向地終止於該重疊部份的外 面。故該接縫的品質仍會較高,因位於該重叠部份3外面之 較小部份=合圖案將只會較小程度地減少其接合面積, 故只會使每單位接合面積的超音波能量少量地增加。 該接合圖案在橫向x的寬度可被製成大致等於或僅猶 10小於該重疊部份3的橫向寬度。此意味著其可防止該等網狀 材料1和2的魏laMa由料網狀材料的平面突出,而被 該等邊緣接合圖案9平貼接合。 依據本發明的接合圖案會比傳統的接合圖案較不敏感 於該等會使接合圖案相對於重疊部份3的縱向中心稱微偏 15 移地終結之製程變異。 本發明係特別適用於單位重量在25至130§/〇12之間的 網狀材料。在本發明之-實施例中,i少一網狀材料係為 -種彈性材料,例如一彈性膜,一彈性非織物或一由之形 成的彈性疊層。一彈性材料係被定義為一種在後述之彈性 20 測試中具有至少30%之彈性的材料。 該重疊部份3沿橫向x的寬度較好係在8至3〇111瓜之間。 本發明之一重要的用途係在個人照護吸收性產品,例 如尿布,失禁護墊,衛生棉及類似物等,其包含一吸收性 結構物與網狀材料接合在一起來形成該等產品的不同部 14 200819068 件。在可使用本發明的接合圖案之吸收性產品中的接縫之 例係被示於第5〜7圖中。 第5圖示出一褲型吸收性產品1〇,其具有一被限制的腰 孔11和一對腿孔12,而可藉將雙腳插入該等腿孔中,再將 5該產品拉高至腰部來將其套設在穿用者的身體上。此等褲 型吸收物之例為尿褲,訓練褲,游泳褲,衛生褲,及失禁 成年人所穿的失禁褲等。該產品於後係被稱為“尿褲,,。該 產品具有一縱向y及一橫向义。 該尿褲包含一前本體片13,其係為該尿褲在使用時欲 1〇用來延伸覆蓋穿用者之腹部及前股部區域的部份。該產品 亦包含一後本體片14,其為該產品在使用時欲用來延伸覆 蓋穿用者之背部及後股部區_部份。一尿褲產品的袴^ 15係該尿褲在使用時要延伸穿過使用者兩腿間之袴部區 的部份。 时或 15 一吸收蕊片16會被設在該袴部15中,並伸入該前、 本體片13和14中。該吸收蕊片16係被設在一内覆片17與〜 外覆片18之間。 该“内覆片”係指形成該吸收產品之内t面的液體可浪 透材料片,其在使用時會被置設直接接觸穿用者的皮膚: 2〇该内覆片可包含-非織材料,例如紡黏、溶喷、梳理、 纏結、濕法或網等所製成者。適合的非織材料可包含天= 纖維,例如木漿相或棉纖維;人造纖維例如聚1旨、策乙^然 聚丙歸、黏膠、_等;或天然和人造纖維的思^^、 内覆片材料亦可包含二種纖維,它們可被以一接合圖汽來 15 200819068 5 • 互相接合,例如在EP-A-1035818專利案中所揭者。内覆片 材料的其它之例為多孔發泡體,開孔的塑膠膜等。適合作 為内覆片的材料應要柔軟且不會刺激皮膚,並要能被體液 例如尿液或月經流體迅速地穿透。該内覆片在該吸收產品 的不同部位可為不同的。 該“外覆片”係指形成該吸收產品之外覆面的材料。該 外覆片在該吸收產品的不同部位可為相同或不同的。至少 在該吸收蕊片的區域中該外覆片會包含一液體不可滲透材 料的薄塑膠膜,例如聚乙烯或聚丙烯膜,塗覆一液體不可 10 ;夢透材料的非織材料5可阻止液體穿透的斥水性非織材 料,或一塑膠膜與一非織材料的疊層。該外覆片材料可為 能透氣的,俾可容蒸氣從該吸收蕊片逸出,而仍可阻止液 體通過。可透氣的外覆片材料之例係如多孔聚合物膜,紡 黏與溶喷物層的非織物疊層,及多孔聚合物膜和非織材料 . 15 的疊層等。較好是,該外覆片會至少在其面向衣服的表面 上包含一非織材料。 該“吸收蕊片”係為被設在該吸收產品的二覆片之間至 少位於其袴部區處的吸收性結構物。該吸收蕊片可為任何 習知的種類。一般所用的吸收材料之例為纖維素短纖漿 20 粕,薄紗層,高吸收性聚合物(所謂的超吸收體),吸收性發 泡材料,吸收性非織材料或類似物等。通常會將纖維素短 纖漿粕與超吸收性聚合物組合在一吸收蕊片中。超吸收性 聚合物係為遇水可膨脹之水不能溶解的有機或無機材料, 且能夠吸收至少約20倍其本身重量之含有0.9重量百分比 16 200819068 的氣化納之水性溶液。適 可包含天崎⑽f 从及㈣材枓的有機材料 材枓例如多醣、多肽和類似物等,以及… 料例Γ人造的水凝膠聚合物等。該等水凝膠聚合物^括 例如㈣酸的驗金屬鹽,聚丙稀酸胺 稀酸醋’聚丙稀酿胺,聚乙輪,及其類似物等。::
15 Γ=包括水解的丙稀猜接枝澱粉,丙稀酸接枝澱 粉取異讀順丁烯二_共聚物,及其混合物等。該水凝 勝水合物讀是輕微地交鏈讀該材料幾為水不可容解 的。較佳的超⑽崎料會進—録較㈣使該超吸收 顆粒、m球等❸卜表面餅殼體具有_超吸收 體的内部更高的交鏈密度。該超吸收性材料可呈任何適用 於吸收性成分的形狀,包括顆粒、纖維、薄片、球體等等。 -高液體儲存能力可藉使用大量的超吸收性材料來提 供。針對包含—親水性纖維基質例如纖維素纖維和超吸收 材料的吸收蕊片而言,該超吸收材料的比例較好是在10至 90wt%之間,更好為3〇至7〇wt%之間。
傳統上會使吸收產品所具的吸收蕊片包含數種針對液 體接收能力、液體配佈能力和儲存能力有不同性質的料 層。該薄吸收體,一般常見於例如嬰兒尿片和失禁護塾, 20通常包含一壓縮的、混合的或疊層的纖維素短纖漿粞和超 吸收聚合物的結構。該吸收蕊片的大小和吸收能力可被改 變來配合不同的用途,例如幼兒或成人的失禁者。 該吸收蕊片更可包含一獲取物配佈層設在主吸收體頂 面上,其係可迅速地接收被排放的液體,並在其被該主吸 17 200819068 收蕊體所吸收之前先暫時地儲存它 。該獲取物配佈層在該 領域中係已習知,甘^丄夕 其可由多孔的纖維襯絮或發泡材料製成。 該等前、你士 交本體片13和14或其位在該吸收蕊片區外的 卩伤乃可具有與該袴部15不同的材料成分。故依據-實施 5 例,該前、徭太触u ,、 交本體片13和14位在吸收蕊片區外的部份可例 如由一疊層材料所構成,其具有一面向人體侧及一面向衣
^ 而液體不可滲透的外覆層及/或一液體可滲透的内 覆層只會存在於該吸收蕊片區内。在其它實施例中,該内 及外覆片在前和後本體片13、14及該袴部區15中皆為相同。 〇 ⑼和後本體片的全部或-部份係可為彈性材料。該 彈It”同疋材料可為彈性非織材料,本身並無彈性但已被利 用彈性線等來彈性化的非織材料,或由二外部纖維材料與 一中間彈性膜層所組成的彈性疊層。 忒則和後本體片13和14會沿縱向側緣被接合而形成側 15接縫19。該前、後本體片13、14皆可被接合於面向另一相 反本體片之外覆片18的前或後本體片之内覆片17。於此情 况下,忒侧接縫將會在該前和後本體片於侧接缝處朝内相 對之相鄰部份的同一平面中,如於第5圖所示。或者人們可 以相對朝内地接合該前和後本體片的内覆片,其中該側接 20缝19將會由該等前和後本體片的平面突出。 該前和後本體片13和14會沿側接縫19等被以本發明的 接合圖案4接合,其包含一主中央接合圖案8及二邊緣接合 圖案9。 一彈性腰帶20會沿著腰孔固設於該前和後本體片I》、 18 200819068 14。最普遍的是使該彈性腰帶2G包含-實質上無彈性的非 織材料,其會被收縮地固定在材料層例如非織材料之間的 細長彈性物21譬如彈性線或帶來彈性化。或者該彈性腰帶 包含一彈性非織物或一彈性膜與非織物的疊層。該彈性腰 5 f 3被以本發明的接合圖案4接合於前和後本體片I]和μ。 該等腿化12亦會被彈性化,該彈性化通常係藉多數的 彈性物12&例如彈性線等來達成,它們係可伸縮地固定於該 等内、外覆片之間。 第6和7圖示出一吸收衣物的實施例,其係呈一尿片或 10失禁護塾22的形式,而包含一第一本體片23與—第二本體 片24,及-袴部25介於其間。一吸收蕊片%設在該椅部^ 中,亚伸入5亥第一和第二本體片23和24中。該吸收蕊片% 係被設在一内覆片27與一外覆片28之間。該等内和外覆片 及吸收蕊片可為如前述之尿褲的材料。該吸收衣物具有一 15 縱向y及一橫向X。 有一對帶件29被附設於第二本體片24的腰部,而可用 來繞捲該衣物之穿用者的腰部,並利用第一固緊裝置糊 如-機械性固緊物,尤其是_鈎與圈固緊裝置的黏扣片來 固接在一起。該相反帶件的外表面,尤其是若包含一纖維 20 性非織物,則可形如一環圈件。 一“鈎與環固緊物”係指具有一“扣鈎,,部與一“環圈” 部,且它們可重複扣接的互補固緊裝置。於此所述之“扣鈎” 係指任何能夠扣接另一元件如所稱“環圈,,部的元件。所述 之“扣鈎,,並不僅限於一般正常所知的“鈎狀物,,,而可包含 19 200819068 任何形狀的卡扣元件,不論是單向或雙向的。所述之“環圈” 同樣地不限於正常所知的“環圈”,而亦包含任何能夠^接 一“扣鈎”固緊物的結構。“環圈,,材料之例可為纖維性結構 物,比如非織材料等。釣圈固緊物可例如由美國的細⑽ ' 5 公司購得。 或者該弟一固緊裝置30係為一黏性固緊裝置馨如一貼 片,而相反帶片29的外表面可為一種該貼片能夠黏接的材 養| 料,例如在WO 01/00129專利案中所揭者。 ι 該等帶件29的寬度可由5至20cm,較好為7至15〇111。該 1〇等帶件29較好是由一載體材料與一柔軟非織物的疊層所製 成,前者係形成該帶的外表面,後者則形成該帶的内側而 會被用來與該使用者的皮膚直接接觸。 一適當的非織材料可為例如聚丙烯或聚乙烯纖維的紡 Η _料。共輛纖維亦可被使用。另一種適當的非織材料係 .5為例由聚丙烯、聚酯或共軛纖維的梳理熱黏材料所製成者。 • 辑體材料應要能被作為觀緊裝置30的承接表面。 饭使忒固緊裝置為扣鈎固緊物,則一非織材料可被用作為 該載體材料。假使該固緊装置3〇是一貼片,則一塑膠膜可 適合作為載體材料。 2〇 〜 ^弟一本體片23正常係為前本體片,其將會被穿過使 用者的雙腿之間,並利用被設在該前本體片23之腰部橫向 圪緣處的第二固緊裝置3丨來固接於帶件29的外側。該等第 —固緊裝置31係為機械式固緊物,例如扣鈎固緊物或黏帶 固緊物。 20 200819068 各帶件29皆在其鄰接第一本體片24的近端處包含一彈 性區29a。該等彈性區29a可為一彈性網狀材料的形式,例 如一彈性膜、一彈性非織物、一彈性疊層或類似物等。該 彈性豐層可為一種介於二或更多非織層、二或更多膜層、 5或一薄膜與非織層的組合物之間的疊層。 適合用以形成該等彈性區29a的彈性疊層之例可為該 '領域中習知的彈性疊層。有一種彈性疊層之組群係稱為“拉 伸接a式$層,其中的彈性層在被與一或更多的非彈性層 層合之前會被至少沿一方向拉伸。在該張力由該彈性層除 10去之後,其將能自由地收縮成原來的未拉伸狀態,故該等 被層合其上的非彈性層會變成縮聚狀,而形成一三維的皺褶。 另一種彈性疊層的組群係稱為“頸接式,,疊層,其係指 有一彈性材料被接合於一非彈性材料而該非彈性物是在減 少其寬度或頸縮之情況下延伸的疊層。“頸接式疊層,,係指 15 種具有至少一層的複合材料,其中一層為一頸縮的非彈 性層,而另一層是一彈性層。該等料層會在該非彈性層呈 伸長狀態時被接合在一起。 又另一種彈性疊層的組群係被揭示於例如w〇/〇47488 專利案中,其中有非彈性的非織物層會被層合於一彈性膜 20層,且該疊層會被拉伸超過該非織材料的斷裂點,而使該 等非彈性層破裂。 彈性疊層之例曾被揭於EP-B_0646062,WO 98/29251, WO 03/000165及US-A-5,226,992等各專利案中。市售可得 的彈性疊層之例係如Tredegar公司的Fabriflex 306和Nordenia 21 200819068 公司的ΡΚ 6358。 該等彈性區29a較好具有_以後述之彈性測試法所測 得之至少30%的彈性。 或者該等彈性(I29a可包含_或錄的雜線或條帶 5 等可伸縮地固定於網狀材料層之間。 在一變化實施例中只有—帶件29被設具該彈性區祝。 —腰部彈性件32會沿各本體片23和24的至少一部份腰 部以橫向X延伸。該腰部彈性件可為一彈性網狀材料,例如 彈性$層,一彈性膜或類似物,而在該内和外覆片之間 10可伸縮地附接於該外覆片的外側或内覆片的面向穿用者侧 上。或者其係包含二或多數的彈性線或條帶可伸縮地固設 於該外與内覆片之間。 該等腿孔亦會被彈性化,該彈性化通常係藉多數的彈 性物33譬如彈性線等來達成,它們係可伸縮地固設於該内 15和外覆片之間。 該彈性區2 9 a係独-依據本發明的接合圖案4接合於 各自的帶件29及/或第二本體片24的側緣。 (彈性測試) 該方法可測出-彈性材料在重複的負載與卸載循環中 2〇如何運作。該樣品會被拉伸至一預定伸長度,且一介於〇和 該預定伸長度之間的循環運動會被進行。所需的負载和卸 載之力會被記錄。該鬆弛材料的永久(即殘餘)伸長度會被測出。 -拉伸測試機Ll0yd LRX會被使用,其能進行循環運 動,並設有—胸眺,圖器或軟麵㈣。該樣品係如下 22 200819068 5 • 地製備:將其切成寬度25mm,且長度較好比該拉伸測試機 的夾鉗之間距更長20mm。 該拉伸測試機會被依據裝置說明來校正。針對該測試 (負載及卸載力)的參數係被調設為: 十字頭速度:500mm/min 夾钳距離:50mm 預負載:0.05N 该樣品會被依照記號置於爽甜中’並要癌認該樣品係 被置於中央且垂直地夾緊於該夾鉗中。該拉伸測試機會被 10 啟動而進行三次0與該預定伸長度(等於最高限制的第一負 載)之間的循環。在最後循環之前,該樣品會被放鬆1分鐘, 嗣會拉伸該樣品直到一0.1N之力被檢出,然後其永久伸長 度會被測量並被記錄。 在放鬆之後的永久伸長度應小於10%,且係以上述方 - 15 ·· 法所測得。故一30%的彈性係被定義為該網狀材料在上述 的拉伸測試機中,在被伸長30%之後,應具有一小於10%的 鬆弛後永久伸長度。一30%的伸長度意指伸長至一長度, 其係比該樣品的初始長度更長30%。 縱然只有少數幾個依據本發明的接合圖案實施例和該 20 等接合圖案的用途被詳揭於上,但熟習該技術之專業人士 將會輕易瞭解該等接合圖案的構態及其用途可能有許多的 修正變化。 1:圖式簡單說明3 弟1 a圖不出二重豐的網狀材料間之一焊接缝的側視不 23 200819068 意圖 10 網料Γ:係為一對應的視圖示出一接合圖案其係比該等 间的重疊部更窄些。 間產Γ竭示出一超音波焊接設備在二重疊的網狀材料之 〜烊接縫的侧視示意圖。 網狀應的視圖示出該超音波設備相對於該等 > +間的重豐部份位在有點偏差處。 合的為二重疊的網狀材料以-本發明的接合圖案接 弟3b圖為—對應視圖但示出該接合圖案相 份有點偏差。 、 第知和4b圖係為二重疊的網狀材料以可擇的接人 來接合的平面圖。 口 重疊部 圖案 15 產品 弟5圖為一褲型吸收性產品的立體圖。 第6圖為一帶式尿片的平面圖。 弟7圖示出第6圖之-細部的放大圖,即該帶附接於該 主要元件符號說明】 1,2···網狀材料 la,2a…側緣 3·_·重疊部份 4· · ·接合圖案 5···超音波導件 6···石占輪 7.·.凸體 8···主接合圖案 8a_··外界線 9···$緣接合圖案 9a···内界線 10···褲型吸收性產品 24 200819068 11"撕 L 12···腿孔 12a,2卜33···彈性物 13…前本體片 14…後本體片 15、25···袴部 16,26...吸收蕊片 17,27...内覆片 18,28...外覆片 19...側接縫 20…彈性腰帶 22…尿片 23…第一本體部 24…第二本體部 29…帶件 29a··.彈性區 30.. .第一固緊裝置 31.. .第二固緊裝置 32…腰部彈性件 a···距離 25

Claims (1)

  1. 200819068 十、申請專利範圍: l 一種將至少第一和第二網狀材料接合在一起的接缝,至 少其中一者包含可熱熔材料,該第一網狀材料具有一側 緣會與第二網狀材料之一側緣重疊,在該處會形成一重 且#伤其中該等網狀材料會重疊,在該重疊部份中的網 狀材料會被用超音波焊接、熱接合、雷射焊接或類似方 以延伸及於該重疊部份之至少一部份的接合圖案 來接合在一起而形成該接縫,該重疊部份具有一縱向與 仏向’及一對縱向側緣係由該等網狀材料的前述重疊 ^緣材料所界定;其特徵在於:該接合圖案包含一主接 σ圖案沿該重疊部份的至少一部份以縱向延伸,及至少 ^緣接合圖案沿著並鄰近至少一前述側緣的至少一 P伤以縱向延伸’該等邊緣接合圖案所占的接合面積不 大於该主接合圖案加邊緣接合圖案的接合面積之總接 合面積的30%。 •如申晴專利範圍第1項之接縫,其特徵在於:該邊緣接 合圖案占有該主接合圖案與邊緣接合圖案合併所占之 〜接合面積的至少5%,較好為至少7%。 • ^中或2項之接縫,其紐在於:該邊緣 接合圖案占有不大於該主接合圖案與邊緣接合圖案合 併所占之總接合面積的25%。 •如以上中請專利範圍任—項之接縫,其特徵在於:該邊 、緣接合圖案係呈許多各具有不大於4mm2之面積的小接 合處的形式。 26 200819068 5.如以上申請專利範圍任一項之接缝,其特徵在於:該主 接合圖案沿縱向係被一外界線所界定’且該邊緣接合圖 案沿縱向係被一内界線所界定,其中遠外界線與内界線 之間的距離係為至少1 5mm。 5 6·如以上申請專利範圍任一項之接縫,其特徵在於:該接 合圖案包含二邊緣接合圖案,在該主接合圖案的每_側 各有一個。 7·如申請專利範圍第6項之接缝,其特徵在於:該二邊緣 接合圖案的内界線之間的距離係為該接縫重疊部份沿 10 橫向之寬度的25至95%,較好在30至80%之間。 8·如以上申請專利範圍任一項之接缝,其特徵在於:該重 疊部份沿橫向的寬度係在8至30mm之間。 9·如以上申請專利範圍任一項之接縫,其特徵在於:該主 接合圖案具有一接合密度係在10至80%之間,較好在2〇 15 至60%之間。 10.如以上申請專利範圍任一項之接縫,其特徵在於:該邊 緣接合圖案具有-接合密度係為至少2%而大於60%,較 好不大於50%,且更好不大於3〇%。 11·如以上巾請專利範圍任—項之接縫,其特徵在於:該等 20 驗材料具有25至13Gg/m2之間的單位重量。 12. 如以上中請專利範圍任—項之接縫,其特徵在於:至少 有一該等網狀材料係為一彈性材料。 13. 如以上申請專利範圍任一項之接縫,其特徵在於:該接 縫係位於與被接合在一起之網狀材料相同的平面中。 27 200819068 14·如以上中請專利範圍任—項之接縫,其特徵在於:該接 =係存在於-個人照護吸收物品中,該物品包含一吸收 、。構及第—和第二網狀材料等含有可熱㈣料被該接 合圖案接合在一起。 _ 10 15 20 U·如申請專利範圍第14項之接缝,其特徵在於··該個人昭 護吸收物品係為-褲型衣物,包含―第一本體片,一第 2體=及-袴部介於其間,該第—和第二本體片係被 2 一重璺方式接合在一起,而形成被一如申請專利範圍 第1至14項中任_項之接合圖案所接合的侧接縫。 &如申請專利範圍第14或15項之接縫,其特徵在於··該個 人賴吸收物品係為-褲型衣物,包含-第-本體片, 了第二本體片及—袴部介於其間,該第-和第二本體片 係被接a在起來形成側接縫,並更設有一彈性腰帶, ,亥腰π係被以-重疊方式接合於該第—及/或第二本體 片’而形成被-如申請專利範圍第m項中任一項之 接合圖案所界定的接縫。 、 17·如申請專利範圍第14項之接縫,其特徵在於:該個人照 護吸w勿品係為1收衣物譬如一尿片和失禁護塾,包 含-第-=體片,_第二本體片,及一椅部介於其間, g第和第—本體片各具有一腰部,該衣物更被設有相 反側向l伸㈣件等附接於該第二本體片的腰部,而可 n亥衣物之牙用者的腰部,並彻第—固緊裝置來固 接在-起’該第一本體片在其腰部設有第二固緊裝置可 被固接於該等帶件,以此方式該衣物將呈顯一裤狀造型, 28 200819068 至少有一該等帶件包含一彈性區位在該帶件的近端而 鄰接第二本體片的腰部,該彈性區係以一重疊方式接合 於各自帶件的其餘部份及/或該第二本體片,而形成被 一如申請專利範圍第1至12項中任一項之接合圖案所界 定的接缝。
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CA2657705A1 (en) 2008-01-17
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CN101484296A (zh) 2009-07-15
US8197458B2 (en) 2012-06-12
US20090292266A1 (en) 2009-11-26
WO2008008004A1 (en) 2008-01-17
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EP2043843A1 (en) 2009-04-08

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