JP2017065253A - 層状物品 - Google Patents
層状物品 Download PDFInfo
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- JP2017065253A JP2017065253A JP2016173303A JP2016173303A JP2017065253A JP 2017065253 A JP2017065253 A JP 2017065253A JP 2016173303 A JP2016173303 A JP 2016173303A JP 2016173303 A JP2016173303 A JP 2016173303A JP 2017065253 A JP2017065253 A JP 2017065253A
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- Prior art keywords
- nonwoven fabric
- layered article
- layer
- fiber
- fibers
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/56—Supporting or fastening means
- A61F13/62—Mechanical fastening means, ; Fabric strip fastener elements, e.g. hook and loop
- A61F13/622—Fabric strip fastener elements, e.g. hook and loop
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- 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
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- 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
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- 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
- A44B18/0015—Male or hook elements
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/45—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
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- 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
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- 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
- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
- B29C65/7858—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined
- B29C65/7888—Means for handling of moving sheets or webs
- B29C65/7894—Means for handling of moving sheets or webs of continuously moving sheets or webs
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- 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
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- 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
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- 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
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- 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
- B29C66/73—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 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
- B29C66/739—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 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
- B29C66/7392—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 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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- 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
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/559—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving the fibres being within layered webs
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H11/00—Non-woven pile fabrics
- D04H11/08—Non-woven pile fabrics formed by creation of a pile on at least one surface of a non-woven fabric without addition of pile-forming material, e.g. by needling, by differential shrinking
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
- D04H3/10—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically
- D04H3/11—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically by fluid jet
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
- D04H3/14—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
- D04H3/147—Composite yarns or filaments
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C23/00—Making patterns or designs on fabrics
- D06C23/04—Making patterns or designs on fabrics by shrinking, embossing, moiréing, or crêping
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- 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
- B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
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- 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
- B29C65/72—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by combined operations or combined techniques, e.g. welding and stitching
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- 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
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- 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
- B29C66/91421—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 joining tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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Abstract
Description
繊維の不織布を含む層を少なくとも1層有する層状物品であって、
溶着部を有し、
式(1)で表される指数Aが0.90×10−6m3/g以下である。
A=T/G (1)
T:溶着部の厚み(単位はm)
G:坪量(単位はg/m2)
本発明の層状物品は、繊維の不織布を含む層を少なくとも1層有する層状物品である。本発明の層状物品が有する上記繊維の不織布を含む層の数は、好ましくは1層〜10層であり、より好ましくは1層〜7層であり、さらに好ましくは1層〜5層であり、特に好ましくは1層〜3層であり、最も好ましくは2層〜3層である。本発明の層状物品が有する上記繊維の不織布を含む層の数が上記範囲内にあれば、該層状物品は、柔軟性がより十分となり、より良好な手触り感を達成できる。
A=T/G (1)
本発明の層状物品は、該層状部材と係合する面ファスナー雄部材と組み合わせることにより、面ファスナーとすることができる。すなわち、本発明の面ファスナーは、本発明の層状物品と、該層状物品と係合する面ファスナー雄部材とを有する。また、本発明の層状物品は、本発明の効果を有効に利用できる任意の適切な物品に用いることができる。このような物品としては、代表的には、例えば、衛生用品などが挙げられる。すなわち、本発明の衛生用品は、本発明の層状物品を有する。このような衛生用品としては、例えば、おむつ(特に、使い捨ておむつ)、サポーター、マスクなどが挙げられる。
本発明の層状物品は、本発明の効果を損なわない範囲で、任意の適切な方法によって製造し得る。本発明の層状物品の好ましい製造方法の一つとしては、繊維の不織布を含む層を少なくとも1層有する単層体または積層体の少なくとも一部を超音波溶着によって溶着する方法が挙げられる。繊維の不織布を含む層を少なくとも1層有する単層体または積層体の少なくとも一部を超音波溶着によって溶着することにより、例えば、熱溶着によって溶着する場合に比べて、生産速度を上げることができる。また、繊維の不織布を含む層を少なくとも1層有する単層体または積層体の少なくとも一部を超音波溶着によって溶着することにより、得られる層状物品は、柔軟性がより十分となり、より良好な手触り感を達成できる。
キーエンス社製のデジタルマイクロスコープ「VHX−1000」を用いて、倍率500倍で不織布表面を撮影し、同機の画像解析ソフトにてN=5以上繊維径を計測し、その平均値を繊維径とした。
得られた層状物品を凍結ミクロトームで切削して露出させた断面に導電処理を施し、FE−SEM(Hitachi製、S−4800、二次電子像、加速電圧1kV)にて断面を撮影し、溶着部の厚みを計測した。計測点はN=3で計測し、その平均値を溶着部の厚みとした。
得られた層状物品を2.5cm(MD方向)×50cm(TD方向)に切出し、切出した層状物品の物性層表面側を巻き内側として、TDが円周となるようにリング状とし、端部が互いに重なることのないようにステープラーで2箇所固定した。
得られた層状物品のリング体に幅方向から人差し指と親指で挟んで圧縮荷重を加え、該リング体が初期直径の半分まで変形させた時の反発力を確認した。
○:反発力が低く、柔軟性が高い。
×:反発力が高く、柔軟性が低い。
表1に示す原反不織布を積層し、23℃のエンボスパターンロールと、Herrmann社製超音波連続溶着装置(周波数20kHz、押付け力900N、速度50m/分)を用い、エンボス処理を施して、層状物品を得た。
用いたエンボスパターンは、図1に示す円弧状のエンボスパターンであり、エンボス幅0.8mm、隣接する2つのエンボスのMD方向の線上の距離の最大値(最大エンボス間距離)3.2mm、エンボス溶着面積割合23%、エンボスパターンによる溶着部の厚みは表1に示す通りであった。
結果を表1に示した。
実施例1において、エンボスパターンロールの温度を50℃とし、速度を100m/分とした以外は、実施例1と同様に行った。
結果を表1に示した。
実施例6において、エンボスパターンロールの温度を70℃とし、押付け力を850Nとし、速度を100m/分とした以外は、実施例6と同様に行った。
結果を表1に示した。
実施例8において、原反不織布を表1のように変更した以外は、実施例8と同様に行った。
結果を表1に示した。
実施例6において、エンボスパターンロールの温度を80℃とし、押付け力を830Nとし、速度を100m/分とした以外は、実施例6と同様に行った。
結果を表1に示した。
表1に示す原反不織布を積層し、200℃のエンボスパターンロールと、室温のゴムロール(押付け力5000N、速度10m/分)を用い、エンボス処理を施して、層状物品を得た。
用いたエンボスパターンは、図1に示す円弧状のエンボスパターンであり、エンボス幅0.8mm、隣接する2つのエンボスのMD方向の線上の距離の最大値(最大エンボス間距離)3.2mm、エンボス溶着面積割合23%、エンボスパターンによる溶着部の厚みは表1に示す通りであった。
結果を表1に示した。
20 エンボスパターンのない領域
100 溶着部
300 係合層
400 物性層
500 積層体
1000 ホーン
2000 回転アンビル
Claims (16)
- 繊維の不織布を含む層を少なくとも1層有する層状物品であって、
溶着部を有し、
式(1)で表される指数Aが0.90×10−6m3/g以下である、
層状物品。
A=T/G (1)
T:溶着部の厚み(単位はm)
G:坪量(単位はg/m2) - 前記指数Aが0.75×10−6m3/g以下である、請求項1に記載の層状物品。
- 前記Tが35×10−6m以下である、請求項1または2に記載の層状物品。
- 前記Gが50g/m2以下である、請求項1から3までのいずれかに記載の層状物品。
- 前記溶着部が前記繊維同士の溶着部を含む、請求項1から4までのいずれかに記載の層状物品。
- 前記溶着部に存在する直径100μm以上の孔の個数が10個/m2以下である、請求項1から5までのいずれかに記載の層状物品。
- 前記溶着部がエンボスパターンを有する、請求項1から6までのいずれかに記載の層状物品。
- 前記エンボスパターンが不連続のエンボスパターンである、請求項7に記載の層状物品。
- 面ファスナー雌部材である、請求項1から8までのいずれかに記載の層状物品。
- 面ファスナー雄部材に係合可能な係合層と該係合層を保持する物性層とを有する、請求項9に記載の層状物品。
- 前記係合層中の不織布の坪量と前記物性層中の不織布の坪量との合計が60g/m2以下である、請求項10に記載の層状物品。
- 前記面ファスナー雌部材が不織布のみからなる、請求項9から11までのいずれかに記載の層状物品。
- 前記係合層に含まれる不織布を構成する繊維の表面と前記物性層の該係合層側の表面が、同種のポリマーを含む、請求項10から12までのいずれかに記載の層状物品。
- 前記ポリマーがポリオレフィンである、請求項13に記載の層状物品。
- 請求項9から14までのいずれかに記載の層状物品と、該層状部材と係合する面ファスナー雄部材とを有する、面ファスナー。
- 請求項1から14までのいずれかに記載の層状物品を有する衛生用品。
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