JP2005212405A - 複合伸縮部材及びその製造方法 - Google Patents
複合伸縮部材及びその製造方法 Download PDFInfo
- Publication number
- JP2005212405A JP2005212405A JP2004024747A JP2004024747A JP2005212405A JP 2005212405 A JP2005212405 A JP 2005212405A JP 2004024747 A JP2004024747 A JP 2004024747A JP 2004024747 A JP2004024747 A JP 2004024747A JP 2005212405 A JP2005212405 A JP 2005212405A
- Authority
- JP
- Japan
- Prior art keywords
- elastic member
- composite
- sheet materials
- joint
- elastic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 65
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 81
- 230000008602 contraction Effects 0.000 claims description 27
- 238000005304 joining Methods 0.000 claims description 24
- 238000007789 sealing Methods 0.000 claims description 14
- 230000037303 wrinkles Effects 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000004745 nonwoven fabric Substances 0.000 description 16
- 230000004927 fusion Effects 0.000 description 15
- 238000000034 method Methods 0.000 description 11
- 238000003825 pressing Methods 0.000 description 9
- 230000002745 absorbent Effects 0.000 description 8
- 239000002250 absorbent Substances 0.000 description 8
- 238000004049 embossing Methods 0.000 description 7
- 230000010354 integration Effects 0.000 description 6
- 229920001971 elastomer Polymers 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000005060 rubber Substances 0.000 description 4
- 244000043261 Hevea brasiliensis Species 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 229920003052 natural elastomer Polymers 0.000 description 3
- 229920001194 natural rubber Polymers 0.000 description 3
- 229920003051 synthetic elastomer Polymers 0.000 description 3
- 239000005061 synthetic rubber Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 2
- 229920002334 Spandex Polymers 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000012669 compression test Methods 0.000 description 2
- BXKDSDJJOVIHMX-UHFFFAOYSA-N edrophonium chloride Chemical compound [Cl-].CC[N+](C)(C)C1=CC=CC(O)=C1 BXKDSDJJOVIHMX-UHFFFAOYSA-N 0.000 description 2
- 210000004177 elastic tissue Anatomy 0.000 description 2
- 210000004709 eyebrow Anatomy 0.000 description 2
- 239000004750 melt-blown nonwoven Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 239000004759 spandex Substances 0.000 description 2
- 239000004831 Hot glue Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000002174 Styrene-butadiene Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000004840 adhesive resin Substances 0.000 description 1
- 229920006223 adhesive resin Polymers 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000011115 styrene butadiene Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- B29C66/40—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
- B29C66/70—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
-
- 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
- B29C66/81431—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 comprising a single cavity, e.g. a groove
-
- 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
- B29C66/83413—Roller, cylinder or drum types cooperating rollers, cylinders or drums
-
- 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
- B29C65/087—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 both a rotary sonotrode and 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
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0037—Other properties
- B29K2995/0046—Elastic
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Laminated Bodies (AREA)
Abstract
【解決手段】 2枚のシート材2,3と、これら両シート材間に配された複数本の弾性部材4とからなる複合伸縮部材1であって、2枚のシート材2,3が、弾性部材4の伸縮方向(X方向)及びそれに交差する方向(Y方向)の両方向において間欠的に接合されて、前記両方向に、複数の接合部6からなる接合ライン50,51がそれぞれ複数本形成されており、弾性部材4の少なくとも2本が、前記伸縮方向(X方向)の接合ラインを構成する各接合部と重なるように配され、該各接合部において両シート材2,3に固定されており、両シート材2,3それぞれが、前記伸縮方向の交差方向に沿う接合ライン同士間において襞6を形成している。
【選択図】 図2
Description
また、特許文献2には、不織布製のシート材と該シート材を折り返して形成した2層部分に挟まれた弾性部材とを有する弾性伸縮部であって、該弾性部材の伸縮方向に直交する方向に延びるシート材同士の線状の接合部分を有し、該接合部分において該弾性部材を前記シート材に接合してなる弾性伸縮部を備えた使い捨ておむつが記載されている。
他方、特許文献2記載の弾性伸縮部においては、シート材同士の線状の接合部分に起因して、その接合部分と平行な方向の柔軟性が劣り、肌に接触したときの柔らかさや感触の点において改善の余地がある。
本発明の複合伸縮部材の製造方法によれば、柔軟で感触が柔らかく、肌触りも良好なギャザー(多数の襞を有する伸縮部)を有する複合伸縮部材を容易に製造することができる。
本発明の一実施形態としての複合伸縮部材1は、図1及び図2に示すように、2枚のシート材2,3と、これら両シート材間に配された複数本の弾性部材4とからなる。
複合伸縮部材1は、平面視して矩形状を有しており、弾性部材4が延びる方向の両端部には、端部シール部11(一方のみ図示)が、弾性部材4の伸縮方向(延在方向)の直交方向に連続的に形成されており、該端部シール部11においては、総ての弾性部材4が両シート材2,3に挟まれた状態で固定されている。複合伸縮部材1は、端部シール部11を除く部分が伸縮部10となっている。
同様の観点から、前記長さL1は0.5〜20mm、特に1〜10mm、前記長さL2は0.5〜30mm、特に1〜20mmであることが好ましい。
前記シート材2,3としては、それぞれ、例えばエアースルー不織布、ヒートロール不織布、スパンレース不織布、スパンボンド不織布、メルトブローン不織布等の各種製法による不織布、織布、編布、樹脂フィルム等、及びこれら2以上を積層一体化させてなるシート材等を用いることができる。
見た目に美しく、感触の良い柔軟な襞を形成させる観点から、両シート材又は一方のシート材(特に複合伸縮部材を肌に当接させる用途に用いる場合の肌側の面を形成するシート材)の形成材料は、エアースルー不織布、ヒートロール不織布、スパンレース不織布、スパンボンド不織布、メルトブローン不織布等であることが好ましい。
機械流れ方向(MD)に150mm、機械流れ方向と直交する方向(CD)に30mmの長方形の試験片を取り、直径45mmの円筒を作り、重なり合った部分の上端と下端とをホッチキス等で止め測定サンプルとする。これを、テンシロン万能試験装置の圧縮武験モードにより、測定環境20℃、65%RH、測定条件としては、圧縮速度10mm/min、測定距離20mmで測定を行う。サンプルを20mm圧縮した時の最大強度を各サンプルについて測定し、その平均値を求め、これを座屈強度とする。
前述したように、シート材としては好ましくは不繊布が用いられる。不織布の坪量としては、好ましくは5〜50g/m2、特に好ましくは8〜30g/m2である。そうした坪量の不織布の座屈強度は、好ましくはCD方向で50cN以下、特に好ましくは30cN以下、MD方向で好ましくは70cN以下、特に好ましくは50cN以下である。柔らかいシート材を使用することで、襞の成形性を高めることが出来る。
尚、2枚のシート材のうちの一方のシート材と他方のシート材とでは、形成材料が同一でも異なっていても良い。
以上のように、襞の高さは成形性・クッション性を考えるとき重要であり、接合部パターンと間隔、材料及び弾性部材の選択により、任意に設計することができる。この襞の高さは,好ましくは片側1〜15mm程度である。襞を高くするためには、相隣接する接合部の間隔を所定の寸法だけ確保し、その間隔が詰まるだけの伸縮伸長倍率と凸形状の襞が形成させることで、ボリューム感のある柔らかい複合伸縮部材を形成することができる。襞の片側の高さがhのものをつくるとき、このとき接合部の間隔は最低でも2×hとすることが好ましく、間隔が2×hの最低値の場合に弾性部材は相隣接する接合部が隣接するくらい収縮することが好ましい。
他の好ましい弾性部材に、ポリウレタンのスパンデックス弾性繊維がある。単糸のサイズが10〜3360デニールのもの、特に好ましくは70〜1120デニールのものが用いられる。デニールは糸の太さを表す単位であり、9000mで1gある糸を1デニールと呼ぶ。このスパンデックス弾性繊維を30〜500%に伸長したものを複数本用いる。
上記に挙げた低モジュラスの弾性部材の単糸を、好ましくは100%以上、特に好ましくは200%以上の高伸長倍率で複数本配置することにより、柔らかく伸縮する美しい襞を有する複合伸縮部材を得ることができる。
先ず、2枚のシート材2,3間に複数本の弾性部材4を伸張状態で配置する(層間は非接着)。そして、その積層体12を、図3に示すように、複数の凸部7で部分的に加熱加圧して、両シート材2,3同士を、熱融着部5の形成パターン(図2参照)に対応するパターンで部分的に熱融着する。この部分的な加熱加圧の際には、弾性部材4を切断しないようにすることが必要である。両シート材同士が熱融着すると共に弾性部材4が、シート材に対して、シート材に含まれる熱融着性繊維を介して熱融着するようにし、且つその弾性部材4が切断されないようにするには、例えば、(1)凸部7のアンビルロール71に対する押し付け圧力、(2)凸部7とアンビルロール71のクリアランス、(3)凸部7とアンビルロール71の温度、の3つのパラメータを振って最適な条件を導き出すことが好ましい。また、弾性部材の材料として加圧や熱の影響を受け難い材料、すなわち切れ難い材料を選ぶことや、製品仕様として伸長率を低く抑えて使用することも、弾性部材を切断しない方法として有効である。
図3に示すエンボス装置においては、複数の凸部7との間で前記積層体12を加圧する面としての、アンビルロール71の外周面における、弾性部材4に対応する部位にも、押圧力低減用の溝部(凹部)73が形成されている。
そして、一体化処理を施した部位が、弾性部材4が延びる方向の両端部に位置するように、弾性部材4を挟んだ状態の両シート材2,3における所定箇所を切断する。そして、弾性部材4を収縮させて両シート材2,3のそれぞれに複数本の襞を形成させることにより、上述した構成の複合伸縮部材1が得られる。尚、上述した一体化処理は、図5に示す複合伸縮部材1”のように、熱融着部(接合部)5と重ならない弾性部材4Bを配する場合に、その弾性部材の端部を固定するのに特に好ましい。
図6は、複合伸縮部材を用いて形成する伸縮部の例を、ファスニングテープ21を有する使い捨ておむつ20の場合を例に示したものであり、例えば、ウエスト回り伸縮部22、ファスニングテープ21に連動して伸縮するテープ近傍伸縮部23、胴回り伸縮部24及び防漏壁の肌当接面に形成された伸縮部25等を、本発明の複合伸縮部材を用いて形成することができる。
2 シート材
3 シート材
4 弾性部材
5 熱融着部(接合部)
6 襞
Claims (4)
- 2枚のシート材と、これら両シート材間に配された複数本の弾性部材とからなる複合伸縮部材であって、
前記2枚のシート材が、前記弾性部材の伸縮方向及びその交差方向の両方向に間欠的に接合されて、前記両方向それぞれに沿って、それぞれ複数の接合部からなる接合ラインが複数本形成されており、
前記弾性部材の少なくとも2本が、前記伸縮方向に沿う接合ラインを構成する各接合部と重なるように配されて、該各接合部において前記両シート材間に固定されており、
前記両シート材それぞれが、前記伸縮方向の交差方向に沿う接合ライン同士間において襞を形成している複合伸縮部材。 - 前記伸縮方向の交差方向に沿う接合ラインにおいて、前記接合部の長さL1と、該接合部の配置ピッチP1との比(P1/L1)が1.05〜80であり、該接合部の配置ピッチP1が1〜40mmである請求項1記載の複合伸縮部材。
- 前記各接合部が、前記2枚のシート材同士を熱融着して形成されている請求項1又は2記載の複合伸縮部材。
- 請求項3記載の複合伸縮部材の製造方法であって、2枚のシート材間に複数本の弾性部材を伸張状態で配置し、その積層体を、複数の凸部で部分的に加熱加圧して、両シート材同士を、前記接合部が形成されるように部分的に熱融着する工程を具備しており、
前記部分的な加熱加圧は、前記弾性部材を切断しないように行う複合伸縮部材の製造方法。
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004024747A JP4322140B2 (ja) | 2004-01-30 | 2004-01-30 | 複合伸縮部材及びその製造方法 |
US10/569,204 US7582348B2 (en) | 2003-09-08 | 2004-09-02 | Composite extensible member and method of manufacturing the same |
CN200810170447.8A CN101390791B (zh) | 2003-09-08 | 2004-09-02 | 复合伸缩部件及其制造方法 |
PCT/JP2004/012723 WO2005025789A1 (ja) | 2003-09-08 | 2004-09-02 | 複合伸縮部材及びその製造方法 |
EP04772677.3A EP1666178B1 (en) | 2003-09-08 | 2004-09-02 | Extensible composite member and method of making the same |
KR1020067002782A KR101105987B1 (ko) | 2003-09-08 | 2004-09-02 | 복합 신축 부재 및 그 제조방법 |
TW093126884A TW200513241A (en) | 2003-09-08 | 2004-09-06 | Composite retractable component and method of manufacturing the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004024747A JP4322140B2 (ja) | 2004-01-30 | 2004-01-30 | 複合伸縮部材及びその製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005212405A true JP2005212405A (ja) | 2005-08-11 |
JP4322140B2 JP4322140B2 (ja) | 2009-08-26 |
Family
ID=34907340
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004024747A Expired - Fee Related JP4322140B2 (ja) | 2003-09-08 | 2004-01-30 | 複合伸縮部材及びその製造方法 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4322140B2 (ja) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007296001A (ja) * | 2006-04-28 | 2007-11-15 | Kao Corp | 吸収性物品 |
JP2008055107A (ja) * | 2006-09-04 | 2008-03-13 | Kao Corp | 吸収性物品及びその製造方法 |
JP2008132023A (ja) * | 2006-11-27 | 2008-06-12 | Kao Corp | 吸収性物品 |
JP2008132024A (ja) * | 2006-11-27 | 2008-06-12 | Kao Corp | 吸収性物品 |
JP2008142341A (ja) * | 2006-12-11 | 2008-06-26 | Kao Corp | パンツ型吸収性物品 |
JP2008240205A (ja) * | 2007-03-28 | 2008-10-09 | Kao Corp | 伸縮シート |
JP2009148447A (ja) * | 2007-12-21 | 2009-07-09 | Kao Corp | 伸縮性複合シート及びその製造方法 |
JP2013126431A (ja) * | 2011-12-16 | 2013-06-27 | Three M Innovative Properties Co | おむつ |
TWI405562B (zh) * | 2006-04-28 | 2013-08-21 | Kao Corp | 吸收性物品 |
JP2016506322A (ja) * | 2012-12-21 | 2016-03-03 | エスセーアー・ハイジーン・プロダクツ・アーベー | 弾性積層体及び弾性積層体の製造プロセス |
JPWO2016208502A1 (ja) * | 2015-06-22 | 2018-03-22 | 株式会社瑞光 | 複合伸縮部材の製造装置および製造方法 |
WO2019003908A1 (ja) | 2017-06-29 | 2019-01-03 | 株式会社瑞光 | 着用物品の伸縮積層体の製造装置および製造方法 |
JP2019119069A (ja) * | 2017-12-28 | 2019-07-22 | 花王株式会社 | 伸縮性シート |
JP2020055266A (ja) * | 2018-10-04 | 2020-04-09 | ユニ・チャーム株式会社 | 伸縮性シート |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10259165B2 (en) | 2015-04-01 | 2019-04-16 | Aurizon Ultrasonics, LLC | Apparatus for fabricating an elastic nonwoven material |
CN107848244B (zh) | 2015-06-22 | 2020-06-16 | 株式会社瑞光 | 复合伸缩部件、穿着物品以及穿着物品的制造方法 |
WO2018064340A1 (en) | 2016-09-30 | 2018-04-05 | Aurizon Ultrasonics, LLC | Apparatus for fabricating an elastic nonwoven material |
KR20210146926A (ko) | 2019-03-22 | 2021-12-06 | 듀케인 아이에이에스, 엘엘씨 | 탄성 부직포 재료를 제조하기 위한 장치 |
-
2004
- 2004-01-30 JP JP2004024747A patent/JP4322140B2/ja not_active Expired - Fee Related
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007296001A (ja) * | 2006-04-28 | 2007-11-15 | Kao Corp | 吸収性物品 |
TWI405562B (zh) * | 2006-04-28 | 2013-08-21 | Kao Corp | 吸收性物品 |
JP2008055107A (ja) * | 2006-09-04 | 2008-03-13 | Kao Corp | 吸収性物品及びその製造方法 |
JP2008132023A (ja) * | 2006-11-27 | 2008-06-12 | Kao Corp | 吸収性物品 |
JP2008132024A (ja) * | 2006-11-27 | 2008-06-12 | Kao Corp | 吸収性物品 |
JP4726767B2 (ja) * | 2006-11-27 | 2011-07-20 | 花王株式会社 | 吸収性物品 |
JP2008142341A (ja) * | 2006-12-11 | 2008-06-26 | Kao Corp | パンツ型吸収性物品 |
JP2008240205A (ja) * | 2007-03-28 | 2008-10-09 | Kao Corp | 伸縮シート |
JP2009148447A (ja) * | 2007-12-21 | 2009-07-09 | Kao Corp | 伸縮性複合シート及びその製造方法 |
JP2013126431A (ja) * | 2011-12-16 | 2013-06-27 | Three M Innovative Properties Co | おむつ |
JP2016506322A (ja) * | 2012-12-21 | 2016-03-03 | エスセーアー・ハイジーン・プロダクツ・アーベー | 弾性積層体及び弾性積層体の製造プロセス |
US11033439B2 (en) | 2012-12-21 | 2021-06-15 | Essity Hygiene And Health Aktiebolag | Elastic laminate and process for the manufacture of elastic laminate |
JPWO2016208502A1 (ja) * | 2015-06-22 | 2018-03-22 | 株式会社瑞光 | 複合伸縮部材の製造装置および製造方法 |
US10786398B2 (en) | 2015-06-22 | 2020-09-29 | Zuiko Corporation | Production device and production method for composite stretchable member |
WO2019003908A1 (ja) | 2017-06-29 | 2019-01-03 | 株式会社瑞光 | 着用物品の伸縮積層体の製造装置および製造方法 |
KR20200023605A (ko) | 2017-06-29 | 2020-03-05 | 가부시키가이샤 즈이코 | 착용 물품의 신축 적층체의 제조 장치 및 제조 방법 |
US11191676B2 (en) | 2017-06-29 | 2021-12-07 | Zuiko Corporation | Device and method for producing stretchable laminate for wearable article |
JP2019119069A (ja) * | 2017-12-28 | 2019-07-22 | 花王株式会社 | 伸縮性シート |
JP6995617B2 (ja) | 2017-12-28 | 2022-02-04 | 花王株式会社 | 伸縮性シート |
JP2020055266A (ja) * | 2018-10-04 | 2020-04-09 | ユニ・チャーム株式会社 | 伸縮性シート |
JP7125884B2 (ja) | 2018-10-04 | 2022-08-25 | ユニ・チャーム株式会社 | 伸縮性シート |
JP7383768B2 (ja) | 2018-10-04 | 2023-11-20 | ユニ・チャーム株式会社 | 伸縮性シート |
Also Published As
Publication number | Publication date |
---|---|
JP4322140B2 (ja) | 2009-08-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP3883530B2 (ja) | 複合伸縮部材及びその製造方法 | |
JP4535771B2 (ja) | 複合伸縮部材及びその製造方法 | |
KR101105987B1 (ko) | 복합 신축 부재 및 그 제조방법 | |
JP4322140B2 (ja) | 複合伸縮部材及びその製造方法 | |
JP4902334B2 (ja) | パンツ型物品 | |
US10751228B2 (en) | Stretchable structure for absorbent article and disposable diaper pants | |
JP4994027B2 (ja) | パンツ型物品及びその製造方法 | |
JP4318451B2 (ja) | 使い捨ておむつの製造方法 | |
JP5086036B2 (ja) | 吸収性物品 | |
TWI450709B (zh) | Absorbent items | |
JP5100359B2 (ja) | 伸縮性複合シート及びその製造方法 | |
US10893986B2 (en) | Underpants-type disposable diaper with reduced lateral side seal tearing | |
JP4454540B2 (ja) | 伸縮性シート | |
JP5783951B2 (ja) | 複合シートおよび複合シートの製造方法 | |
JP4294045B2 (ja) | 吸収性物品 | |
JP2006027089A (ja) | 複合伸縮部材及びその製造方法 | |
TW202103659A (zh) | 吸收性物品 | |
WO2014038578A1 (ja) | 複合シート材とその製造方法及びこれを用いた使い捨て着用物品 | |
JP2008030468A (ja) | シート部材、高密度領域含有シートの製造方法およびシート部材を使用した使い捨ておむつ | |
JP2006311939A (ja) | 吸収性物品及びその製造方法 | |
JP2019115409A (ja) | 伸縮性シート及びそれを備えた吸収性物品 | |
JP3973382B2 (ja) | 吸収性物品用シート | |
EP3452281B1 (en) | Multilayer material comprising at least a layer of non-woven fabric | |
JP2007216034A (ja) | 吸収性物品用シート | |
TWI405562B (zh) | 吸收性物品 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20060823 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20081202 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20090202 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20090602 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20090602 |
|
R151 | Written notification of patent or utility model registration |
Ref document number: 4322140 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R151 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120612 Year of fee payment: 3 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120612 Year of fee payment: 3 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130612 Year of fee payment: 4 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
LAPS | Cancellation because of no payment of annual fees |