CN102844009A - Absorbent composite with resilient coform layer - Google Patents

Absorbent composite with resilient coform layer Download PDF

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Publication number
CN102844009A
CN102844009A CN 201180019366 CN201180019366A CN102844009A CN 102844009 A CN102844009 A CN 102844009A CN 201180019366 CN201180019366 CN 201180019366 CN 201180019366 A CN201180019366 A CN 201180019366A CN 102844009 A CN102844009 A CN 102844009A
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layer
material
composite
absorbent
disposed
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CN 201180019366
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Chinese (zh)
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K·C·施勒德
G·R·沃尔特曼
D·M·杰克逊
D·A·菲尔
K·L·威斯
T·J·内特科文
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金伯利-克拉克环球有限公司
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
    • A61L15/00Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/42Use of materials characterised by their function or physical properties
    • A61L15/60Liquid-swellable gel-forming materials, e.g. super-absorbents
    • 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
    • A61F13/53Absorbent 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 absorbing medium
    • 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
    • A61F13/53Absorbent 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 absorbing medium
    • A61F13/534Absorbent 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 absorbing medium having an inhomogeneous composition through the thickness of the pad
    • 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
    • A61F13/53Absorbent 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 absorbing medium
    • A61F13/534Absorbent 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 absorbing medium having an inhomogeneous composition through the thickness of the pad
    • A61F13/537Absorbent 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 absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
    • A61F13/5376Absorbent 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 absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer characterised by the performance of the layer, e.g. acquisition rate, distribution time, transfer time
    • 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
    • A61F13/15203Properties of the article, e.g. stiffness or absorbency
    • A61F2013/15284Properties of the article, e.g. stiffness or absorbency characterized by quantifiable properties
    • A61F2013/15292Resistance, i.e. modulus or strength
    • A61F2013/15325Stress relaxation or compression recovery
    • 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
    • A61F2013/15821Apparatus or processes for manufacturing characterized by the apparatus for manufacturing
    • A61F2013/15934Apparatus or processes for manufacturing characterized by the apparatus for manufacturing for making non-woven
    • A61F2013/15943Apparatus or processes for manufacturing characterized by the apparatus for manufacturing for making non-woven by air-laid technique
    • 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
    • A61F2013/15821Apparatus or processes for manufacturing characterized by the apparatus for manufacturing
    • A61F2013/15934Apparatus or processes for manufacturing characterized by the apparatus for manufacturing for making non-woven
    • A61F2013/15967Apparatus or processes for manufacturing characterized by the apparatus for manufacturing for making non-woven by meltblown technique
    • 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
    • A61F13/53Absorbent 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 absorbing medium
    • A61F2013/530481Absorbent 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 absorbing medium having superabsorbent materials, i.e. highly absorbent polymer gel materials
    • A61F2013/530708Absorbent 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 absorbing medium having superabsorbent materials, i.e. highly absorbent polymer gel materials characterized by the absorbency properties
    • 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
    • A61F13/53Absorbent 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 absorbing medium
    • A61F13/534Absorbent 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 absorbing medium having an inhomogeneous composition through the thickness of the pad
    • A61F2013/53445Absorbent 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 absorbing medium having an inhomogeneous composition through the thickness of the pad from several sheets

Abstract

An absorbent composite disposed in an absorbent article between a topsheet and a backsheet is presented, the absorbent composite including a first intake layer disposed between the topsheet and the backsheet, and a retention layer disposed between the topsheet and the backsheet, wherein one of the first intake layer and the retention layer includes a resilient coform material. When the first intake layer includes a resilient coform material, the retention layer includes one of a high-density, hydrogen-bonded, fluff/superabsorbent polymer material, a spunlace material, a superabsorbent polymer/adhesive composite material, and a foam material. The absorbent composite can further include a distribution layer disposed between the topsheet and the backsheet, the distribution layer including one of a meltblown microfiber material, a spunlace material, and a foam material.

Description

具有回弹性共成形层的吸收性复合材料 The absorbent composite having a resilient shaping layer co

[0001] 背景 [0001] BACKGROUND

[0002] 该申请要求提交于2010年4月16日的申请号61/324,982的优先权。 [0002] This application claims priority application No. 16 April 2010 61 / 324,982 of. 将申请号61/324,982的全部内容以引用方式并入本文中。 The entire contents of Application No. 61 / 324,982 is incorporated by reference herein.

[0003] 用于吸收尿液、血液、和基于血液的流体的高吸收性制品如失禁垫和衣服、月经垫(例如,卫生巾)、卫生棉条、伤ロ敷料、绷带和手术帘的开发是具有挑战性的。 [0003] for absorbing urine, blood, and blood-based fluids absorbent articles such as high incontinence pads and garments, catamenial pads (e.g., sanitary napkins), tampons, wound ro dressings, bandages and surgical drapes development of It is challenging. 例如在失禁垫和月经垫的情况中,消费者期望在舒适和贴合、流体的保留、以及最低限度的沾污方面具有高水平的性能。 For example, in the case of incontinence pads and menstrual pads, consumers expect a high level of performance in comfort and fit, retention of fluid, and minimal contamination aspects. 总之,认为流体从垫渗漏到内衣上是不可接受的。 In short, that the leakage of fluid from the pad onto undergarments is not acceptable. 虽然已经对用于这样的结构的结构和材料进行了许多改进,但提高这样的垫的性能仍然是一项艰巨的事业。 Although the structure and materials used in such structures were many improvements, but to improve the performance of this pad is still an arduous undertaking. 消除渗漏,特别是沿着大腿内侧的渗漏,同时不降低贴合和舒适感,也并不总能满足消费者渴望的需求。 Eliminate leakage, especially leakage along the inner thigh, while not reducing the fit and comfort, it does not always meet the needs of consumers desire.

[0004]目前垫的吸收结构通常包括一个或多个纤维层以从可渗透顶片中收集排出的流体并将其分布于下层的储存区域。 [0004] It absorbent mat structure typically comprises one or more fiber layers in a fluid discharged from the permeable topsheet collected and distributed in the storage area of ​​the lower layer. 用于现有产品的相对较薄版本的吸收结构通常包括与可渗透顶片相邻的流体收集或吸入层。 For relatively thin versions of existing products and absorbent structure generally comprises a permeable topsheet adjacent fluid collection or intake layer. 该吸入层通常由气流法纤网或合成性无纺纤网制得。 The intake layer is typically prepared by the airlaid web or synthetic nonwoven web, too. 该吸入层以下为主要吸收芯,该吸收芯通常由气流法或湿法纤网制得。 The following is the main intake layer of the absorbent core, the absorbent core is typically made from air-laid or wet-laid webs made.

[0005] 由纤维层制成的现有吸收结构有许多问题。 [0005] The conventional absorbent structures made from fibrous layers have a number of problems. ー个问题是在确保顶片足够干燥方面存在困难。ー problem is difficulty in ensuring adequate topsheet dried aspects. 这样的结构造成衣物和身体污染的机会也更大。 The opportunity to create such a structure contaminated clothing and body are also greater. 这是由于吸收结构缺乏回弹性,导致垫的聚束。 This is because the absorbent structure lacks resilience, leading to bunching of the pad. 该回弹性的缺乏以及随之发生的聚束也可导致这些现有的垫提供使用者以较差的合身感和舒适感。 The lack of resilience, and consequent bunching can also cause these existing pads to provide users with poor fit and comfort. Dyer的第5,849,805号美国专利确认了传统的吸收结构和传统的吸收纤维纤网未解决该问题的议题。 Dyer's US Patent No. 5,849,805 to confirm the topic of traditional absorbent structures and conventional absorbent fiber web does not resolve the problem.

[0006] 一种尝试性的解决方案用泡沫代替纤维吸入层和吸收层,如购自俄亥俄州辛辛那提的宝洁公司的ALWAYS INFINITY普通型垫中所使用的INFINICEL泡沫。 [0006] An attempted solution replaced by fibrous intake layer and an absorbent foam layer, such foam INFINICEL available from Procter & Gamble, Cincinnati, OH ALWAYS INFINITY ordinary type pad used. 该泡沫往往比纤维纤网更加昂贵。 The foam tends to be more expensive than fibrous webs.

[0007] 共成形无纺纤网是熔喷纤维基体和吸收性材料(例如,绒毛浆纤维)的复合材料,在多种应用中用作吸收层,包括吸收性制品、吸收性干巾、湿巾和拖把。 [0007] The nonwoven web is a coform matrix of meltblown fibers and absorbent material (e.g., fluff pulp fibers) composites as an absorbent layer in a variety of applications, including absorbent articles, an absorbent towel dry, wet towels and mops. 大多数传统共成形纤网采用由聚丙烯均聚物形成的熔喷纤維。 Most conventional coform web of melt-blown fibers formed by a polypropylene homopolymer. 然而,这样的共成形材料有时遇到的问题是当共成形材料受到弯曲カ时可能会无足够的回弾性。 However, such problems sometimes encountered in co-form material is formed when the material is subjected to bending co grades may not have enough of Dan back. 例如,当共成形擦拭物被弄皱时,共成形材料无法恢复到其原始的平坦、无皱褶状态。 For example, when the coform wipe crumpled, coform materials can not be restored to its original flat, wrinkle-free state. 另ー个实例是在个人护理吸收产品中用作吸收芯的共成形材料有聚束的倾向。ー Another example is personal care absorbent products as the absorbent core material has a tendency to bunching coform.

[0008] 因此,目前需要一种改进的共成形无纺纤网以用于各种应用,所述改进的共成形无纺纤网显示对弯曲力抵抗力的提高并在折叠后显示恢复平坦状态的倾向。 [0008] Therefore, there is a need for an improved coform nonwoven web for various applications, the modified coform nonwoven web to exhibit increased resistance to bending force and restore the display folded flat state Propensity. 这样的改进的共成形无纺纤网可与其它多种材料结合以产生可用于个人护理吸收性制品中的下一代吸收性复合材料。 Such improved coform nonwoven web may be combined with other materials to produce a variety of next-generation absorbent composite personal care absorbent articles may be used.

[0009] 概沭 [0009] Almost Shu

[0010] 本发明人在提高吸收性制品方面进行了深入细致的研发努力,并且已开发出用于具有足够湿性和干性弾力以及足够吸收性的吸收芯的吸收性复合材料,而不主要使用昂贵的泡沫。 [0010] The present invention is an absorbent article in terms of improving the intensive development effort, have been developed and used in the absorbent composite has sufficient wet and dry strength as well as sufficient Tan absorbent core of the absorbent without using the main expensive foam. 本发明人也发现他们可通过将回弾性共成形材料与其它材料合并来调整这些性能,以赋予其高回弾性和吸收性能。 The present inventors have also found that they can be prepared by co-back of Tan combined with other materials, molding materials to adjust these properties to impart high absorption performance and Dan back.

[0011] 本发明提供了一种在吸收性制品中置于顶片与底片之间的吸收性复合材料,所述吸收性复合材料包括置于顶片与底片之间的第一吸入层,和置于顶片与底片之间的保留层,其中所述第一吸入层和所述保留层中的ー个包括回弾性共成形材料。 [0011] The present invention provides an absorbent composite disposed between the topsheet and backsheet in an absorbent article, said absorbent composite comprising a first intake layer disposed between the topsheet and backsheet, and retaining layer disposed between the topsheet and backsheet, wherein said first and said intake layer retention layer ー comprises a coform material of the back Dan. 当所述第一吸入层包括回弾性共成形材料吋,所述保留层包括高密度氢键合绒毛/超吸收性聚合物材料、射流喷网材料、超吸收性聚合物/粘性复合材料和泡沫材料中的ー种。 When the first intake layer comprises a coform material of the back Tan inch, the retaining layer comprises a high hydrogen bonding density fluff / superabsorbent polymer material, a spunlace material, the superabsorbent polymer / viscosity composites and foamsー kinds of materials. 吸收性复合材料还可以包括置于顶片与底片之间的分布层,所述分布层包括熔喷微纤维材料、射流喷网材料、和泡沫材料中的ー种。 The absorbent composite may further include a distribution layer disposed between the topsheet and backsheet, said distribution layer comprises a meltblown microfiber materials, spunlaced materials, and foam materials ー species.

[0012] 本发明还提供了一种在吸收性制品中置于顶片与底片之间的吸收性复合材料,所述吸收性复合材料包括第一吸入层和置于顶片与底片之间的保留层,所述第一吸入层包括共成形材料、回弹性共成形材料、气流法材料、粘合梳理纤网(BCW)材料、和泡沫材料中的一种,所述保留层包括共成形材料、回弾性共成形材料、气流法材料、高密度氢键合绒毛/超吸收性聚合物材料、射流喷网材料、超吸收性聚合物/粘性复合材料和泡沫材料中的ー种,其中所述第一吸入层和所述保留层中的ー个包括回弾性共成形材料。 [0012] The present invention further provides an absorbent composite disposed between the topsheet and backsheet in an absorbent article, said absorbent composite comprising a first intake layer and disposed between the topsheet and backsheet retaining layer, said first layer comprises a coform material suction, resilient coform material, an airlaid material, a bonded carded web (the BCW) material, and a foamed material, the retaining layer comprises a coform material , Tan back of coform materials, airlaid materials, high hydrogen bonding density fluff / superabsorbent polymer material, a spunlace material, the superabsorbent polymer / viscosity and foam composite material ー species, wherein said the first suction retention layer and said layer comprising a back Tan ー of coform material.

[0013] 本发明还提供了一种在吸收性制品中置于顶片与底片之间的吸收性复合材料,所述吸收性复合材料包括第一吸入层以及置于所述顶片与所述底片之间的保留层,所述第一吸入层包括回弾性共成形材料,所述保留层包括共成形材料、回弾性共成形材料、气流法材料、高密度氢键合绒毛/超吸收性聚合物材料、射流喷网材料、超吸收性聚合物/粘性复合材料和泡沫材料中的ー种。 [0013] The present invention further provides an absorbent composite disposed between the topsheet and backsheet in an absorbent article, said absorbent composite comprising a first layer, and disposed in the inhalation and said topsheet between the backsheet retaining layer, said first layer comprises a back suction of Tan coform material, the retaining layer comprises a coform material of the back Tan coform material, an airlaid material, a high hydrogen bonding density fluff / superabsorbent polymer material, a spunlace material, the superabsorbent polymer / viscosity composites and ー species in the foam material.

[0014] 本发明还提供了ー种具有顶片和底片的吸收性个人护理制品,所述制品包括置于顶片与底片之间的吸收性复合材料,所述吸收性复合材料包括第一吸入层以及置于所述顶片与所述底片之间的保留层,所述第一吸入层包括回弾性共成形材料,所述保留层包括共成形材料、回弾性共成形材料、气流法材料、高密度氢键合绒毛/超吸收性聚合物材料、射流喷网材料、超吸收性聚合物/粘性复合材料和泡沫材料中的ー种。 [0014] The present invention further provides a personal care absorbent article ー species, said article having a topsheet and backsheet of an absorbent composite comprising a disposed between the topsheet and backsheet, said absorbent composite comprising a first suction layer and a retaining layer disposed between said topsheet and said backsheet, said first layer comprises a back suction of Tan coform material, the retaining layer comprises a coform material of the back Tan coform material, an airlaid material, hydrogen bonding high density fluff / superabsorbent polymer material, a spunlace material, the superabsorbent polymer / viscosity and foam composite material ー species.

[0015] 本发明还提供了一种制备具有吸收性复合材料的吸收性个人护理制品的方法,所述方法包括将吸收性材料流与熔喷纤维流并合以形成复合材料流;在成形表面上收集所述复合材料流以形成回弾性共成形无纺纤网;和将所述回弾性共成形无纺纤网与顶片和底片相结合。 [0015] The present invention further provides a method of absorbent personal care articles having absorbent composite material prepared, the method comprising meltblown fibers and absorbent material stream flows merging to form a composite stream; shaping surface collecting the composite stream to form the back of Dan coform nonwoven web; and the return of Dan coform nonwoven web combined with the topsheet and backsheet.

[0016] 本发明还提供了ー种适用于具有顶片和底片的吸收性制品的吸收性复合材料,所述吸收性复合材料包括:包括置于所述顶片与所述底片之间的泡沫材料的吸入层,所述吸入层具有多个穿过该吸入层的孔;以及置于所述顶片与所述底片之间的保留层,其中所述保留层包括回弾性共成形材料。 [0016] The present invention further provides an absorbent composite having a suitable species ー topsheet and backsheet of an absorbent article, said absorbent composite comprising: a foam disposed between said topsheet and said backsheet intake layer material, said layer having a suction hole through the plurality of suction layer; and a retaining layer disposed between said topsheet and said backsheet, wherein said retaining layer comprises a coform material of the back Dan.

[0017] 本文对本发明的其它特征和方面进行了更详细的讨论。 [0017] Other features and aspects of the article of the present invention are discussed in more detail.

[0018] 附图的简要说明 [0018] BRIEF DESCRIPTION

[0019] 參照以下说明书、所附权利要求和附图,本发明的上述和其它特征和方面以及实现该特征和方面的方式将变得更加显而易见,并且本发明自身将更易于理解。 [0019] reference to the following specification, appended claims and accompanying drawings, the above and other features and aspects, and implement the features and aspects of the present invention will become more apparent and the invention itself will be more readily understood.

[0020] 图I为形成本发明所述的共成形纤网的方法的ー个方面的示意性说明; [0020] FIG. I is a schematic illustration ー aspect of the method for forming a coform web of the present invention;

[0021] 图2为图I所示的装置的某些特征的说明; Certain features described in [0021] FIG. 2 is shown in Figure I device;

[0022] 图3为根据本发明形成的有纹理的共成形无纺纤网的ー个方面的剖视图;[0023] 图4为有纹理的共成形无纺纤网的ー个方面的照片; [0022] FIG. 3 is a cross-sectional view of a textured ー aspect of the coform nonwoven web formed in accordance with the present invention; [0023] FIG. 4 is a photograph ー textured co aspect of the nonwoven web forming;

[0024] 图5为来自图4的有纹理的共成形无纺纤网被弄皱并放松之后的照片; [0024] FIG. 5 from FIG. 4 is a textured nonwoven web is creped and relax after pictures coform;

[0025] 图6为有纹理的共成形无纺纤网的另ー个方面的照片; [0025] FIG. 6 is a textured coform nonwoven web ー another aspect of the photograph;

[0026] 图7为来自图6的有纹理的共成形无纺纤网被弄皱并放松之后的照片; [0026] FIG. 7 from FIG. 6 is a textured nonwoven web is creped and relax after pictures coform;

[0027] 图8为纳入了本发明所述的吸收性复合材料的女性卫生制品的示意性局部剖切平面图; [0027] FIG. 8 is a feminine hygiene article into the absorbent composite of the present invention is a schematic partial cutaway plan view;

[0028] 图9为纳入了本发明所述的吸收性复合材料的女性卫生制品的局部示意性侧视图; [0028] FIG. 9 is a partial schematic side view into feminine hygiene absorbent composite article according to the present invention;

[0029] 图10为用于测试本发明所述的吸收性复合材料的吸收性复合材料轮廓上的孔型图案的实施例的示意性平面图;和 [0029] FIG. 10 is a grooved pattern on the absorbent composite absorbent composite profile according to the invention were tested schematic plan view of the embodiment; and

[0030] 图11为用于测试本发明所述的吸收性复合材料的吸收性复合材料轮廓的实施例的示意性平面图。 [0030] FIG 11 is a profile of the absorbent composite of the present invention for testing the absorbent composite is a schematic plan view of an exemplary embodiment.

[0031] 在本说明书和附图中引用字符的重复使用g在代表本发明相同或类似的特征或元件。 [0031] The reference characters in the present specification and drawings g reused in the same or analogous features or elements representative of the present invention.

[0032] 迸述 [0032] said Beng

[0033] 本领域技术人员要理解的是,本讨论仅对示例性方面进行描述,而不是为了限制本发明的更宽的范围。 [0033] Those skilled in the art will appreciate that the present discussion are described only exemplary aspects, and not to limit the invention to a wider range.

[0034] 现在详细參照本发明的各方面,在下文对其中的一个或多个实施例进行描述。 [0034] Referring now in detail various aspects of the invention, will be described in which one or more of the Examples below. 以解释的方式而不是限制本发明的方式提供每个实施例。 By way of explanation, not limitation of the present invention provides each of the embodiments. 事实上,在不偏离本发明的范围或实质的前提下可对本发明作出各种修改和变化对本领域技术人员是显而易见的。 Indeed, various modifications and variations can be made to the present invention without departing from the spirit or scope of the present invention will be apparent to the skilled person. 例如,说明或描述为ー个方面的部分的特征可用于另ー个部分以产生又ー个方面。 For example, features illustrated or described as part ー aspect may be used to produce other portions ー ー further aspect. 因此,本发明旨在涵盖该修改和变化。 Accordingly, the present invention is intended to cover the modifications and variations.

[0035] 如本文所使用,术语“无纺纤网”通常是指具有单个纤维或线的结构的纤网,所述单个纤维或线为交互的,但不是以如在针织物中的可识别的方式进行交互。 [0035] As used herein, the term "nonwoven web" generally refers to a web having a structure of individual fibers or threads, the fiber or the single line interactive, but not in an identifiable as in the knitted fabric way to interact. 无纺纤织物或纤网的实例包括但不限干,熔喷网、纺粘网、粘合梳理纤网、气流法纤网、共成形纤网、水力 Examples of nonwoven fabrics or webs include, but are not dry, meltblown webs, spunbond webs, bonded carded webs, airlaid webs, coform webs, hydraulic

缠结网等。 Tangle net.

[0036] 如本文所使用,术语“纺粘纤网”通常是指含有小直径基本连续纤维的纤网。 [0036] As used herein, the term "spunbond web" generally refers to a web containing small diameter substantially continuous fibers. 通过将熔融的热塑性材料从多个细密、通常为圆形的喷丝嘴的毛细管中挤出,然后迅速通过例如引出拉拔和/或其它众所周知的纺粘法机理降低所挤出纤维的直径。 By extruding a molten thermoplastic material, usually circular capillaries of a spinneret extruded from a plurality of fine, for example, by extraction and then quickly drawing and / or other well known spunbonding mechanisms to reduce the diameter of the extruded fibers. 对纺粘纤网的生产的描述和说明见于例如Appel等人的第4,340, 563号美国专利、Dorschner等人的第3,692,618号美国专利、Matsuki等人的第3,802,817号美国专利、Kinney的第3,338,992号美国专利、Kinney的第3,341,394号美国专利、Hartman的第3,502,763号美国专利、Levy的第3,502,538号美国专利、Dobo等人的第3,542,615号美国专利、和Pike等人的第5,382,400号美国专利,为了所有目的将其全部内容引入本文作为參考。 Production of spunbond webs is described and illustrated, for example, found in the first of 3,802 Appel et al. 4,340, 563 U.S. Patent, to Dorschner et al., U.S. Patent No. 3,692,618, to Matsuki et al., US Patent No. 817, Kinney, US Patent No. 3,338,992, Kinney, US Patent No. 3,341,394, Hartman, US Patent No. 3,502,763, Levy No. 3,502,538 U.S. Patent No., to Dobo et al., U.S. Patent No. 3,542,615, and 5,382,400 to Pike et al., U.S. Patent No., for all purposes in its entirety incorporated herein by reference. 当沉积于收集表面上时,纺粘纤维通常不发粘。 When deposited on a collecting surface, Spunbond fibers are generally not tacky. 纺粘纤维的直径有时可小于约40微米,且通常为约5至约20微米。 Spunbond fibers can sometimes diameter of less than about 40 microns, and typically from about 5 to about 20 microns.

[0037] —般而言,本发明涉及具有回弾性共成形层和任选的至少ー个或多个其它层的吸收性复合材料。 [0037] - In general, the present invention relates to an absorbent composite having a back of Tan coform layer and optionally at least one or more other ー layers. 如以下更详细描述的回弹性共成形层由含有熔喷纤维基体和吸收性材料的回弾性共成形无纺纤网形成。 As described in greater detail resilience coform layer containing the back of Dan matrix of meltblown fibers and absorbent materials coform nonwoven web is formed. 吸收性复合材料可用于个人护理或其它合适的制品中。 The absorbent composite can be used in personal care or other suitable article. [0038] 作为ー个实例,吸收性复合材料可用作女性卫生制品中的吸收性元件。 [0038] As ー instance, the absorbent composite useful as feminine hygiene articles and absorbent element. 如图8所示,女性卫生制品70包括剥离条72,所述剥离条72借助衣物结合粘合剂74粘结于衣物侧底片76的ー侧上。 8, feminine hygiene article 70 includes a release strip 72, the release strip 72 by means of adhesive 74 is bonded to the laundry binding ー upper side of the garment facing backsheet 76. 以结构粘合剂将底片76的另ー侧结合至吸收层78。 Another structural adhesive to the backsheet 76 ー side bonded to the absorbent layer 78. 吸收层78结合至体侧衬垫或顶片80。 Absorbent layer 78 bonded to the bodyside liner or topsheet 80. 本发明所述的吸收性复合材料84可适当取代吸收层78。 The absorbent composite 84 of the present invention the absorbent layer 78 may be suitably substituted. 希望地,使用吸收性复合材料84可在佩戴产品时抑制产品的聚束,从而提高整体效率和降低渗漏。 Desirably, the absorbent composite 84 can be used to suppress the product bunching when worn product to improve overall efficiency and reduce leakage. 本领域技术人员熟知其它用于形成具有吸收芯材料的个人护理制品的合适构造。 Other well known to those skilled in the art having a structure suitable for forming a personal care absorbent article of the core material. 在ー个希望的方面,吸收性复合材料84具有有纹理的表面。 In one aspect ー desired, the absorbent composite 84 having a textured surface. 有纹理的表面希望地位于朝向顶片80的位置,以促进流体更快吸入和使吸收芯具有更高的吸收性。 Textured surface desirably located towards the topsheet 80 in the position to promote faster fluid intake and the absorbent core having higher absorption.

[0039] 除回弾性共成形材料外,置于顶片80与不可透液体的底片76之间的本发明所述的吸收性复合材料84包括一至三层。 [0039] In addition to coform material of the back Tan, the sheet 80 is placed on top of a liquid impermeable backsheet 84 of the absorbent composite of the present invention comprises 76 between one to three. 如图9所示,吸收性复合材料84可包括可选的第一液体吸入层86、任选的第二液体吸入层88或任选的第一分布层90、保留层94、和任选的第二分布层96。 9, the absorbent composite 84 may include an optional layer 86 of a first liquid suction, suction optional second liquid distribution layer or the optional first layer 88 90, retaining layer 94, and optionally the second distribution layer 96. 在吸收性复合材料84内部的层通常以面对面的朝向放置。 Inner layer 84 of the absorbent composite typically placed in face to face orientation. [0040] 在本发明的多个方面中,第一吸入层86可比保留层94更宽和/或更长,并可制成矩形以外的形状以在佩戴时更好地贴合身体。 [0040] In various aspects of the present invention, a first intake layer 86 is wider than the retaining layer 94 and / or longer and can be made a shape other than rectangular when worn to fit the body better. 在本发明的另ー个方面中,包括回弾性共成形材料的层可为最宽和/或最长的层。ー In another aspect of the present invention, the material layer may be the widest and / or back to the longest layer comprises a coform of Tan. 在本发明的又ー个方面中,包括气流法材料的层可为最宽和/或最长的层。 In the present invention ー further aspect, the material comprising a layer of airlaid be the widest and / or the longest layer.

[0041] 第一吸入层和保留层86、94中至少ー个包括分别充当流体吸入材料或流体保留材料的回弹性共成形材料。 [0041] The first intake layer and retention layer 86, 94 respectively include at least one ー serving as fluid into the fluid retention material or a resilient material coform material. 对于第一吸入层86包括回弹性共成形材料的方面,吸收性复合材料84包括另外ー层,该另外一层可为第二液体吸入层88、第一分布层90、保留层94、或第二分布层96。 For the first aspect of the intake layer 86 comprises a resilient coform material, an absorbent composite 84 comprises a layer ー Further, the additional layer may be a second liquid suction layer 88, a first distribution layer 90, retaining layer 94, or the two distribution layer 96. 对于保留层94包括回弾性共成形材料的方面,吸收性复合材料84包括另外ー层,该另外一层可为第一液体吸入层86、第二液体吸入层88、第一分布层90、或第二分布层96。 For retaining layer 94 comprises a coform material of the back Tan aspects, the absorbent composite 84 comprises a layer ー Further, the additional layer may be sucked into a first liquid layer 86, the second liquid intake layer 88, a first distribution layer 90, or the second distribution layer 96.

[0042] 下面更详细地描述每层包括的材料。 [0042] Each layer comprises a material described in more detail below. 第一吸入层86可包括共成形材料、回弾性共成形材料、气流法材料、粘合梳理纤网(BCW)材料、或泡沫材料,且还可包括绒毛浆。 Intake layer 86 may include a first coform materials, coform materials of the back Tan, airlaid material, a bonded carded web (the BCW) material, or a foam material, and may also include fluff pulp. 第二液体吸入层88可包括BCW材料,气流法材料、或泡沫材料。 The second layer 88 may comprise a liquid suction BCW material, airlaid material, or foam material. 第一分布层90可包括射流喷网材料,熔喷微纤维材料,或泡沫材料。 A first distribution layer 90 may comprise a spunlace materials, meltblown microfiber material, or foam material. 保留层94可包括共成形材料、回弾性共成形材料、或气流法材料,其中每种还可包括超吸收性材料(SAM)。 Retaining layer 94 may comprise coform materials, coform materials of the back Dan, or airlaid material, wherein each further include superabsorbent material (SAM). 替代地,保留层94可包括高密度氢键合绒毛/超吸收性聚合物材料、射流喷网材料、超吸收性聚合物/粘性复合材料或泡沫材料。 Alternatively, the retention layer 94 may include a high-density hydrogen bonding fluff / superabsorbent polymer material, a spunlace material, the superabsorbent polymer / composite material or a viscous foam. 这些保留层材料中的任何一个还可包括绒毛浆。 Any fluff pulp may also include a retaining layer such materials. 最后,第二分布层96可包括熔喷微纤维材料、射流喷网材料、或泡沫材料,并还可包括绒毛浆。 Finally, a second distribution layer 96 may comprise a meltblown microfiber material, a spunlace material, or foam material, and further comprising a fluff pulp.

[0043] 本发明所述的吸收性复合材料84可用于多种制品中。 [0043] The absorbent composite 84 of the present invention may be used in a variety of articles. 例如,吸收性复合材料84可并入能够吸收水或其它流体的吸收性制品中。 For example, the absorbent composite 84 may be incorporated into an absorbent article capable of absorbing water or other fluids. 这样的吸收性制品的实例包括但不限干,个人护理吸收性制品,如尿布、训练裤、吸收性内裤、失禁制品、女性卫生产品(例如,卫生巾)、泳衣、婴儿湿巾、手套毛巾等;医用吸收性制品,如服装、开窗材料、护理垫、床垫、绷帯、吸收帘、和医疗湿巾;餐饮服务擦拭物;服饰制品;袋等。 Examples of such absorbent articles include, but are not limited dry, absorbent personal care products such as diapers, training pants, absorbent underpants, incontinence products, feminine hygiene products (eg, sanitary napkins), bathing suits, baby wipes, gloves, towels so forth; medical absorbent articles, such as garments, fenestration materials, nursing pads, mattresses, stretched Bands, absorption curtain, and medical wipes; food service wipes; clothing articles; bags. 本领域技术人员熟知适合形成这样的制品的材料和エ艺。 Well known to those skilled in material suitable for forming such articles and Ester arts. DiPalma等人的第5,649,916号美国专利;Kielpikowski的第6,110,158号美国专利;Blaney等人的第6,663,611号美国专利描述了该吸收性制品的若干实例,为了所有目的将其全部内容以引用方式并入本文。 DiPalma et al., U.S. Patent No. 5,649,916; Kielpikowski U.S. Pat. No. 6,110,158; to Blaney et al., U.S. Patent No. 6,663,611 describes a number of examples of the absorbent article, in order all purposes in its entirety is incorporated herein by reference. Fell等人的美国专利申请公开号2004/0060112A1,以及Dami co等人的第4,886,512号美国专利;Sherrod等人的第5,558,659号美国专利;Fell等人的第6,888,044号美国专利;和Freiburger等人的第6,511,465号美国专利还描述了其它合适的制品,为了所有目的将其全部内容引入本文作为参考。 Fell et al., US Patent Application Publication No. 2004 / 0060112A1, and Dami co et al., US Patent No. 4,886,512; the first 6 Fell et al.,; Sherrod, et al., US Patent No. 5,558,659 U.S. Patent No. 888,044; Freiburger et al., and U.S. Patent No. 6,511,465 also describes other suitable article, for all purposes in its entirety incorporated herein by reference. 当在吸收性制品中采用时,本发明所述的吸收性复合材料84能够形成吸收芯的组件或本领域众所周知的吸收性制品的任何其它吸收性组件。 When using an absorbent article, the absorbent composite 84 can be formed according to the present invention, the absorbent core components of the absorbent assembly or any other known in the art an absorbent article.

[0044] 术语“共成形”通常是指熔喷纤维和吸收性纤维如纤维素纤维的共混物,可通过气流形成熔喷聚合物材料并同时将悬浮在气流中的纤维喷入熔喷纤维流中而形成。 [0044] The term "coform" generally refers to meltblown fibers and absorbent fibers such as a blend of cellulosic fibers, a meltblown polymer material may be formed simultaneously by the gas stream and suspended fibers into the stream of meltblown fibers sprayed stream is formed. 共成形材料也可包括其它材料,如超吸收性材料。 Coform material may also include other materials, such as superabsorbent materials. 在成形表面上如网带所提供的表面上收集熔喷纤维和吸收纤维(和其它任选的材料)。 The meltblown fibers were collected on the surface of the mesh belt is provided on the shaped surface and the absorbent fibers (and other optional materials). 成形表面可包括置于成形表面上的可透过气体的材料。 Forming surface may include a gas permeable material disposed on the forming surface. Georger等人的第5,508, 102号和第5,350, 624号美国专利、和Anderson的第4,100, 324号美国专利中进ー步描述了共成形材料,将其全部内容引入本文作为參考,以其不互相抵触为限。 Georger et al of 5,508, 102 and 5,350, 624, U.S. Pat., Of 4,100 and Anderson, U.S. Patent No. 324 describes a further advance ー coform material incorporated herein in its entirety as a reference, not conflicting with its limited.

[0045] 如本文所使用,术语“回弾性共成形”通常是指包括熔喷纤维基体和吸收性材料的回弹性共成形无纺纤层,其中熔喷纤维构成30wt%至约99wt%的纤网,而吸收性材料构成Iwt %至约70wt%的纤网,此外,其中熔喷纤维由含有至少ー种丙烯/ α -烯烃共聚物的热塑性组合物形成,所述丙烯/ α -烯烃共聚物的丙烯含量为约60摩尔%至约99. 5摩尔%,而α -烯烃含量为约O. 5摩尔%至约40摩尔%,其中共聚物的密度为约O. 86至约O. 90克/立方厘米,并且虽然实际考虑能够降低高端熔体流动速率范围,但根据ASTM测试方法D1238-E在230° C下测得组合物的熔体流动速率为约120至约6000克/10分钟。 [0045] As used herein, the term "co-molding of the back Dan" is generally meant to include a matrix of meltblown fibers and resiliency of absorbent material coform nonwoven layer, wherein the meltblown fibers 30wt% to about 99wt% of the fiber network, and an absorbent material Iwt% to about 70wt% of the web, in addition, wherein the meltblown fibers consist of at least a propylene containing species ー / α - olefin copolymer forming a thermoplastic composition, the propylene / α - olefin copolymer propylene content of about 60 mole% to about 99.5 mole%, and the α - olefin content of 5 mol% to about 40 mole% to about O., wherein the copolymer has a density of about to about O. 86 O. 90 g of / cc, although practical considerations can be reduced and high melt flow rate range, but a melt flow ASTM test method D1238-E at 230 ° C measured at a rate of the composition is from about 120 to about 6000 g / 10 min.

[0046] 共成形无纺纤网的熔喷纤维占纤网的30wt%至约99wt%,而吸收性材料占纤网的约lwt%至约70wt%。 [0046] The meltblown fibers of the coform nonwoven web account for 30wt% to about 99 wt% of the web, the absorbent web material comprises from about lwt% to about 70wt%. 更优选地,共成形无纺纤网的熔喷纤维占纤网的45wt%至约99wt%,而吸收性材料占纤网的约lwt%至约55wt%。 More preferably, the nonwoven web of meltblown fibers were formed accounts for about 45 wt% to 99 wt% of the web, while the absorbent material comprises from about 55 wt% to about lwt% of the web. 熔喷纤维由以下描述的含有至少ー种丙烯/α-烯烃共聚物的热塑性组合物形成,所述丙烯/ α -烯烃共聚物具有特定的単体含量、密度、熔体流动速率等。 Meltblown fibers containing at least from the following description ー species propylene / α- olefin copolymer forming a thermoplastic composition, the propylene / α - olefin copolymer having a specific radiolabeling isomer content, density, melt flow rate and the like. 对特定类型的丙烯/ α -烯烃共聚物的选择为所得到的组合物提供改进的热性能以形成共成形纤网。 A particular type of propylene / α - olefin copolymer is selected to provide improved thermal performance of the resulting composition to form coform web. 例如,热塑性组合物在相对缓慢的速率下结晶,从而使纤维在形成过程中保持微弱的粘性。 For example, the thermoplastic composition at a relatively slow rate of crystallization, so that the fibers remain weak tackiness during formation. 该粘性可提供多种益处,如在纤网形成的过程中提高熔喷纤维粘附在吸收性材料上的能力。 The adhesive may provide a variety of benefits, such as increased ability to adhere to the meltblown fibers of the absorbent material during the web formed. 熔喷纤维可占共成形纤网的约30wt%至约99wt%,在特定方面中为约45wt%至约99wt%,在更特定的方面中为约50wt%至约90wt%,在更加特定的方面中为约50wt%至约80wt%。 Coform meltblown fibers may comprise from about 30wt% to about 99wt% of the web, in particular aspects from about 45wt% to about 99wt%, in a more specific aspect, from about 50wt% to about 90wt%, more in particular aspect from about 50wt% to about 80wt%. 同样,吸收性材料可占共成形纤网的约lwt%至约70wt%,在特定方面中为lwt%至约55wt%,在更特定的方面中为10wt%至约50wt%,在更加特定的方面中为约20wt% 至约50wt%。 Similarly, coform absorbent material may comprise from about lwt% to about 70wt% of the web, of lwt% to about 55wt% In a particular aspect, in a more specific aspect of 10wt% to about 50wt%, more in particular aspect from about 20wt% to about 50wt%.

[0047] 除了提高熔喷纤维的粘结能力,本发明所述的热塑性组合物也可赋予所得到的共成形结构其它益处。 [0047] In addition to the ability to enhance the adhesion of the meltblown fibers, the thermoplastic composition of the present invention may also impart other benefits resulting structure coform. 例如在某些方面中,可使用三维成形表面赋予共成形纤网纹理。 For example, in certain aspects, it may be used to impart a three-dimensional shaped surface texture processing coform web. 在这样的方面中,熔喷纤维的相对缓慢的结晶速率能够提高其吻合三维成形表面轮廓的能力。 In this regard, the relatively slow crystallization rate meltblown fibers to improve their capabilities match the surface contour of the three-dimensionally shaped. 然而,纤维一旦結晶,熔喷纤维就能够达到高于传统聚丙烯的一定程度的回弾性,从而允许其保留并恢复三维形状以及共成形纤网上的高度纹理化的表面。 However, once crystalline fibers, the meltblown fibers can be higher than conventional polypropylene reached a degree of back Tan, thereby allowing it to retain and restore the three-dimensional shape and the surface of the web of highly textured coform.

[0048] 在形成过程中纤维粘性延长的另ー个益处是多层共成形无纺纤网的层之间的层附着强度增加,产生分层所必要的额外的剪切能。 [0048] In the fiber forming process prolonged tackiness Another benefit is a multilayer ー coform layer increases adhesion strength between the nonwoven web layer, delamination necessary additional shear energy. 该层附着強度的増加能够降低或消除对能够负面影响片材特性如厚度和密度的压纹的需要。 Zo adhesion strength of the layer can be added to reduce or eliminate the need for embossing thickness and density can be negative effects on the properties such as a sheet. 在由多层共成形无纺纤网制得的擦拭物的分配过程中特别需要増加的层附着強度。 In the dispensing process nonwoven web prepared by a multi-layered coform wipe in particular need to increase in the adhesion strength of the layer. 使用本文所述的三维成形表面所赋予的纹理可通过增加层之间的接触表面积来进一歩提高层附着強度。 Used herein, the three-dimensionally shaped surface texture may be imparted into a ho-improving layer adhesion strength by increasing the contact surface area between the layers.

[0049] 现在将更加详细地描述本发明的各方面。 [0049] Aspects of the present invention will now be described in more detail below.

[0050] 本发明的热塑性组合物含有至少ー种丙烯和α-烯烃的共聚物,所述α-烯烃如C2-C20 α -烯烃、C2-C12 α -烯烃、或C2-C8 α -烯烃。 [0050] The thermoplastic compositions of the present invention contains at least one copolymer of propylene and ー α- olefin, the α- olefins such as C2-C20 α - olefin, C2-C12 α - olefin, or C2-C8 α - olefins. 合适的α -烯烃可为直链或支链的(例如,一个或多个C1-C3烷基支链,或芳基基团)。 Suitable α - olefins may be linear or branched (e.g., one or more C1-C3 alkyl branches, or an aryl group). 特定实例包括こ烯、丁烯;3_甲基-1-丁烯;3,3-ニ甲基-1-丁烯;戊烯;具有ー个或多个甲基、こ基或丙基取代基的戊烯;具有ー个或多个甲基、こ基或丙基取代基的己烯;具有ー个或多个甲基、こ基或丙基取代基的庚烯;具有ー个或多个甲基、こ基或丙基取代基的辛烯;具有ー个或多个甲基、こ基或丙基取代基的壬烯;こ基、甲基或ニ甲基取代的癸烯;十二烯;苯こ烯等。 Specific examples include ko, butene; 3_-methyl-1-butene; 3,3-ni-1-butene; pentene; ー having one or more methyl, or propyl group substituted ko pentenyl group; ー having one or more methyl, or propyl group substituted ko hexene; ー having one or more methyl, propyl group or heptenyl ko substituent; having one or ーmethyl, or propyl group substituted ko octenyl; a ー one or more methyl, or propyl group nonene ko substituent; ko, methyl or methyl substituted ni decene; ten diene; alkenyl ko benzene and the like. 特别需要的α-烯烃共聚单体为こ烯、丁烯(例如I-丁烯)、庚烯和辛烯(例如,I-辛烯或2-辛烯)。 Particularly desirable is ko α- olefin comonomer, butene (butylene e.g. I-), heptene and octene (e.g., I- or 2-octene-octene). 这样的共聚物的丙烯含量为约60摩尔%至约99. 5摩尔%,在进ー步的方面中为约80摩尔%至约99摩尔%,在更进ー步的方面中为约85摩尔%至约98摩尔%。 A propylene content of such copolymer is from about 60 mole percent to about 99.5 mole%, in further aspect ー feed is from about 80 mole% to about 99 mole%, from about 85 moles goes further aspect ー% to about 98 mol%. 同样地,α -烯烃含量可为约O. 5摩尔% 至约40摩尔%,在进ー步的方面中为约I摩尔%至约20摩尔%,在更进ー步的方面中为约2摩尔%至约15摩尔%。 Likewise, α - olefin content may be about O. 5 mole% to about 40 mole%, the intake ー about further aspect mole% to about 20 mole% I, the step goes ー aspect from about 2 mole percent to about 15 mole%. 在形成丙烯共聚物的不同的分子量分数中,α-烯烃共聚单体的分布通常是随机且均匀的。 In various molecular weight fractions form a propylene copolymer, α- olefin comonomer distribution is generally uniform and random.

[0051] 丙烯/α -烯烃共聚物的密度可为α _烯烃的长度和含量的函数。 [0051] The propylene / α - olefin copolymer may be function of the density and length _ [alpha] -olefin content. 也就是说,α -烯烃的长度越长,所存在α-烯烃的含量越高,共聚物的密度越低。 That is, α - olefin longer the length, the higher the content of α- olefin present, the lower the density of the copolymer. 一般来说,密度较高的共聚物能够更好地形成三维结构,而密度较低的那些具有更好的弾性和回弹性能。 Generally, the higher density of the copolymer formed can be better three-dimensional structure, and those having a lower density and better Tan resilience performance. 因此,为了在纹理和回弾性之间达到最佳平衡,通常选择密度为约O. 860克/立方厘米(g/cm3)至约O. 900g/cm3的丙烯/ α -烯烃共聚物,在进ー步的方面中为约O. 861至约O. 890g/cm3,在更进ー步的方面中为约O. 862g/cm3至约O. 880g/cm3。 Accordingly, in order to return between the texture and the best balance of Dan, density is generally selected from about O. 860 grams / cubic centimeter (g / cm3) to about propylene O. 900g / cm3 in / α - olefin copolymer, the intake aspect ー step is from about to about O. 861 O. 890g / cm3, the step goes ー aspect from about O. 862g / cm3 to about O. 880g / cm3. 此外,通常选择密度为约每立方厘米O. 860克(g/cm3)至约O. 940g/cm3的热塑性组合物,在进ー步的方面中为约O. 861至约 Further, usually selected density of about O. 860 g of per cubic centimeter (g / cm3) to the thermoplastic composition from about O. 940g / cm3, the intake aspect ー step is from about to about O. 861

O. 920g/cm3,在更进一步的方面中为约O. 862g/cm3至约O. 900g/cm3。 O. 920g / cm3, in a further aspect from about O. 862g / cm3 to about O. 900g / cm3.

[0052] 通常可采用多种已知技术中的任意ー种来形成熔喷纤维中所使用的丙烯/α -烯烃共聚物。 [0052] The commonly employed various known techniques in any ー propylene to form meltblown fibers used / α - olefin copolymer. 例如,可使用自由基或配位催化剂(例如,Ziegler-Natta)来形成烯烃聚合物。 For example, the olefin polymers may be formed using a free radical or a coordination catalyst (e.g., Ziegler-Natta). 优选地,共聚物由単位点配位催化剂形成,如金属茂催化剂。 Preferably, the copolymer formed from the catalyst coordination site radiolabeling, such as a metallocene catalyst. 这样的催化剂系统产生丙烯共聚物,其中共聚单体随机分布在分子链内并均匀地分布在不同的分子量分数中。 Such a catalyst system produces a propylene copolymer, wherein the comonomer is randomly distributed within a molecular chain and uniformly distributed across the different molecular weight fractions. 在例如Datta等人的第7,105, 609号美国专利;Datta等人的第6,500, 563号美国专利;Yang等人的第5,539,056号美国专利;和Resconi等人的第5,596,052号美国专利中描述了金属茂催化的丙烯共聚物,为了所有目的将其全部内容引入本文作为參考。 Datta et al., For example, of 7,105, U.S. Patent No. 609; first and Resconi et al; 6,500 of Datta et al, U.S. Pat. No. 563; Yang et al., U.S. Patent No. 5,539,056 U.S. Patent No. 5,596,052 describes a metallocene-catalyzed propylene copolymers, for all purposes in its entirety incorporated herein by reference. 金属茂催化剂的实例包括双(正丁基环戊ニ烯基)ニ氯化钛、双(正丁基环戊ニ烯基)ニ氯化锆、双(环戊ニ烯基)氯化钪、双(茚基)ニ氯化锆、双(甲基环戊ニ烯基)ニ氯化钛、双(甲基环戊ニ烯基)ニ氯化锆、ニ茂钴、环戊ニ烯基三氯化钛、ニ茂铁、ニ氯ニ茂铪、异丙基(环戊ニ烯基-I-芴基)ニ氯化锆、ニ氯ニ茂钥、ニ茂镍、ニ氯ニ茂铌、ニ茂钌、ニ氯ニ茂钛、氢氯ニ茂锆、ニ氯ニ茂锆等。 Examples of metallocene catalysts include bis (n-butylcyclopentadienyl Ni-enyl) ni titanium chloride, bis (n-butylcyclopentadienyl Ni-enyl) ni zirconium dichloride, bis (Ni-enyl-cyclopentyl) scandium chloride, bis (indenyl ) ni zirconium dichloride, bis (methylcyclopentadienyl Ni-enyl) ni titanium chloride, bis (methylcyclopentadienyl Ni-enyl) zirconium dichloride ni, ni cobaltocene, cyclopentyl ni alkenyl titanium trichloride, Ni ferrocene, hafnocene ni ni chloro, isopropylidene (cyclopentadienyl Ni alkenyl -I- fluorenyl) zirconium dichloride ni, ni ni metallocene key chloro, nickelocene ni, ni ni metallocene niobium chloride, ni ruthenocene, ni ni chloro titanocene, zirconocene hydrochlorothiazide ni, ni ni zirconocene chloride and the like. 使用金属茂催化剂制备的聚合物通常具有较窄的分子量范围。 Preparation of polymers using metallocene catalysts typically have a narrow molecular weight range. 例如,金属茂催化的聚合物可以具有4以下的多分散度(M„/Mn)、控制的短链支化分布和控制的立构规整度。 For example, metallocene-catalyzed polymers may have polydispersity (M "/ Mn) 4 or less, the short chain branching distribution and tacticity control control.

[0053] 在特定的方面中,丙烯/ α -烯烃共聚物占用于形成熔喷纤维的热塑性组合物的约50wt%或更多,在进ー步的方面中为约60wt%或更多,在更进ー步的方面中为约75wt%或更多。 [0053] In a particular aspect, the propylene / α - olefin copolymer occupy from about 50wt% to meltblown fibers formed thermoplastic composition or more, about 60wt% or more in advance ー further aspect, theー goes further aspect is about 75wt% or more. 在其它方面中,丙烯/α-烯烃共聚物占用于形成熔喷纤维的热塑性组合物的至少约lwt%i低于约49wt%,在特定的方面中为至少约1%且低于约45wt%,在进ー步的方面中为至少约5%且低于约45wt%,在更进ー步的方面中为至少约5wt%且低于约35wt%。 In other aspects, the propylene / α- olefin copolymer occupying the thermoplastic meltblown fibers forming composition is at least about lwt% i less than about 49wt%, at least about 1% and less than about 45wt% In a particular aspect in step into ー aspect of at least about 5% and less than about 45wt%, the step goes ー aspect of at least about 5wt% and less than about 35wt%. 当然,只要不对复合材料的所需性能产生不利影响,其它热塑性聚合物也可用于形成熔喷纤維。 Of course, as long as the desired properties of the composite are not adversely affected, other thermoplastic polymers may also be used to form meltblown fibers. 例如,熔喷纤维可含有其它聚烯烃(例如,聚丙烯、聚こ烯等)、聚酯、聚氨酷、聚酰胺、嵌段共聚物等。 For example, the meltblown fibers may contain other polyolefins (e.g., polypropylene, ko-ene and the like), polyester, polyurethane cool, polyamide, block copolymer. 在ー个方面中,熔喷纤维可包含其它的丙烯聚合物,如聚丙烯均聚物或丙烯共聚物。 In ー aspect, the meltblown fibers may further comprise a propylene polymer, such as a polypropylene homopolymer or a propylene copolymer. 其它丙烯聚合物,例如可由基本全同立构的聚丙烯均聚物或共聚物形成,其含有的其它单体等于或低于10%重量百分比,即按重量计至少约90%的丙烯。 Other propylene polymers, for example, by substantially isotactic polypropylene homopolymer or copolymer, other monomers which contain less than or equal to 10% by weight, i.e. by weight of at least about 90% propylene. 这样的聚丙烯可以以接枝、无规或嵌段共聚物的形式存在,可主要为结晶,因为其具有约110° C以上的明确熔点,在进ー步的方面中为约115° C以上,在更进ー步的方面中为约130° C以上。 Such a polypropylene may be present as a graft, random or block copolymers can be predominantly crystalline, because it has more than sharp melting point of about 110 ° C, the intake ー further aspect less than about 115 ° C in more into ー further aspect less than about 130 ° C. 在Datta等人的第6,992,159号美国专利中描述了这些其它的聚丙烯的实例,为了所有目的将其全部内容以引入本文作为參考。 Datta et al., In U.S. Patent No. 6,992,159 Examples of these are described in other polypropylenes, for all purposes in its entirety incorporated herein by reference.

[0054] 在特定方面中,其它聚合物可占热塑性组合物的约O. lwt%至约90wt%,在进ー步的方面中为约O. 5wt%至约50wt%,在更进一步的方面中为约lwt%至约30wt%。 [0054] In a particular aspect, the polymer may comprise other thermoplastic composition from about O. lwt% to about 90wt%, the intake ー further aspect from about O. 5wt% to about 50wt%, in a further aspect from about lwt% to about 30wt%. 同样,上述丙烯/ α -烯烃共聚物可占热塑性组合物的约15wt%至约99. 9wt%,在进ー步的方面中为约50wt%至约99. 5wt%,在更进一步的方面中为约70wt%至约99wt%。 Similarly, the propylene / α - olefin copolymer can comprise from about 15wt% to about 99. 9wt% of the thermoplastic composition, the intake ー further aspect from about 50wt% to about 99. 5wt%, in still further aspects about 70wt% to about 99wt%.

[0055] 用于形成熔喷纤维的热塑性组合物也可含有如本领域已知的其它添加剂,如表面活性剂、熔体稳定剂、加工稳定剂、热稳定剂、光稳定剂、抗氧化剂、热老化稳定剂、增白剂等。 The thermoplastic composition [0055] for forming meltblown fibers may also contain other additives as known in the art, such as surfactants, melt stabilizers, processing stabilizers, heat stabilizers, light stabilizers, antioxidants, heat aging stabilizers, whitening agents and the like. 亚磷酸盐稳定剂(例如,IRGAF0S,购自Tarrytown的Ciba Specialty Chemicals,纽约,和D0VERPH0S,购自Dover的Dover Chemical Corp.,俄亥俄州)为不例性的溶体稳定剂。 Phosphite stabilizers (e.g., IRGAF0S, Tarrytown, available from Ciba Specialty Chemicals, New York, and D0VERPH0S, available from Dover, Dover Chemical Corp., Ohio) was dissolved exemplary embodiment without stabilizers. 此外,受阻胺类稳定剂(例如,CHIMASS0RB,购自Ciba Specialty Chemicals)为典型的热和光稳定剂。 In addition, hindered amine stabilizers (e.g., CHIMASS0RB, available from Ciba Specialty Chemicals) is a typical heat and light stabilizers. 此外,受阻酚通常用作抗氧化剂。 Further, hindered phenols are commonly used as antioxidants. 一些合适的受阻酚包括购自Ciba SpecialtyChemicals (Ciba)的商品名为IRGANOX 的那些,如IRGANOX 酚1076、1010 或E 201。 Some suitable hindered phenols include those available from Ciba SpecialtyChemicals (Ciba) under the trade name of those, such as IRGANOX 1076,1010 phenol or of E 201 IRGANOX. 当采用时,这样的添加剂(例如,抗氧化剂、稳定剂、表面活性剂等)以可为用于形成熔喷纤维的热塑性组合物的约O. 001wt%至约15wt%的量存在,在进ー步的方面中为约O. 005wt%至约10wt%,在更进ー步的方面中为约O. 01wt%至约5wt%。 An amount of about 15wt% to 001wt% of the thermoplastic composition from about O. When employed, such additives (e.g., antioxidants, stabilizers, surfactants, etc.) may be used to form meltblown fibers present in the feed step ー aspect from about O. 005wt% to about 10wt%, about goes ー O. in further aspect 01wt% to about 5wt%. 可将ー种或多种表面活性剂加入聚合物组合物中以使聚合物纤维更易湿润并提高共成形材料的流体吸入性能。ー may be one or more surfactants added to the polymer composition so that the polymer fibers are more wetted and improved fluid intake performance coform material. 合适的表面活性剂包括阳离子型、阴离子型、两性的和非离子型表面活性剤。 Suitable surfactants include cationic, anionic, nonionic and amphoteric surfactants Ji. 特别适合的内部表面活性剂购自Techmer PM,Clinto,田纳西,为亲水性熔体添加剂PPM15560表面活性剤。 Particularly suitable internal surfactant available from Techmer PM, Clinto, Tennessee, is a hydrophilic melt additive PPM15560 surfactants Ji. 当采用时,各表面活性剂的量可以用于形成熔喷纤维的热塑性组合物的约O. 5wt%至约10wt%的量存在,在进一步的方面中为约I. 0wt%至约7. 5wt%,在更进一步的方面中为约I. 5wt%至约5wt%。 When employed, the amount of each surfactant may be used in an amount of about 5wt% to about 10wt% of O. meltblown fibers formed thermoplastic composition is present, in a further aspect from about 7 to about I. 0wt%. 5wt%, in a further aspect from about to about I. 5wt% 5wt%. 也可将表面活性剂应用于熔喷纤维外部作为局部处理。 Surfactants also may be applied to the outer meltblown fibers as a topical treatment.

[0056] 通过选择某些聚合物及其含量,所得到的热塑性组合物的热性能会比熔喷网中通常所采用的聚丙烯均聚物更优越。 [0056] By selecting certain polymers and their content, thermal properties of the resulting thermoplastic composition than meltblown web typically employed polypropylene homopolymer superior. 例如,热塑性组合物在性质上通常比熔喷网中通常所采用的聚丙烯均聚物更加无定形。 For example, the thermoplastic composition is generally in nature than the meltblown web of polypropylene homopolymer commonly employed more amorphous. 为此,通过测量其“半结晶时间即一半材料成为晶体所需的时间,发现热塑性组合物的结晶速率更慢。例如,在125° C温度下测得热塑性组合物的半结晶时间通常大于约5分钟,在进ー步的方面中为约5. 25分钟至约20分钟,在更进一歩的方面中为约5. 5分钟至约12分钟。相反地,传统聚丙烯均聚物的半结晶时间通常为5分钟或更短。此外,热塑性组合物的熔融温度(“Tm”)可为约100° C至约250° C,在进ー步的方面中为约110° C至约200° C,在更进ー步的方面中为约140° C至约180° C。热塑性组合物的结晶温度(“T。”)(在10° C/min的冷却率下測定)可为约50° C至约150° C,在进ー步的方面中为约80° C至约140° C,在更进ー步的方面中为约100° C至约120° C。可使用本领域技术人员熟知的差示扫描量热法(“DSC”)来測定半结晶时间、熔融温度和结晶温度。 For this reason, by measuring their "half-crystallization time i.e. the time required for half the material becomes crystalline, the thermoplastic composition found that the rate of crystallization is slower. For example, at 125 ° C measured temperature of the thermoplastic composition is typically greater than about half-crystallization time 5 minutes, into ー further aspect from about 5.25 minutes to about 20 minutes, at more into a ho aspect from about 5.5 minutes to about 12 minutes. in contrast, the traditional polypropylene homopolymer half the crystallization time is usually 5 minutes or less. Further, the melting temperature of the thermoplastic composition ( "Tm") may be approximately between 100 ° C to about 250 ° C, in a further aspect ー into about 110 ° C to about 200 ° C, in a further aspect ー goes from about 140 ° C to about 180 ° C. the crystallization temperature of the thermoplastic composition ( "T.") (measured at a cooling rate of 10 ° C / min) may be about 50 ° C and about 150 ° C, the intake ー further aspect from about 80 ° C to about 140 ° C, of ​​about between 100 ° C to about 120 ° C. may be used in the present art goes further aspect ーartisan to differential scanning calorimetry ( "DSC") to determine crystallization half time, melting temperature and crystallization temperature.

[0057] 也可在特定范围内选择热塑性组合物的熔体流动速率以优化所得到的熔喷纤维的性能。 [0057] The melt flow rate can be selected thermoplastic composition within a specific range in order to optimize the performance of the resulting meltblown fibers. 熔体流动速率为当在230° C下在10分钟内施加2160克的カ时,被迫通过挤出式流变仪孔(直径为2. 09mm (O. 0825英寸))的聚合物的重量(以克计)。 A melt flow rate of 2160 grams when ka is applied in 10 minutes at 230 ° C, forced through an extrusion rheometer orifice (diameter 2. 09mm (O. 0825 inch)) of the weight of the polymer (in grams). 一般来说,熔体流动速率足够高以提高熔融加工性,但不会高到对纤维与吸收性材料的结合性能产生不利的影响。 Generally, the melt flow rate is high enough to improve melt processability, but not so high as to adversely affect the binding properties of the fiber and absorbent material. 因此,在本发明的大多数方面中,根据ASTM测试方法D1238-E测量的热塑性组合物的熔体流动速率为每10分钟约120至约6000克,在进ー步的方面中为每10分钟约150至约3000克,在更进ー步的方面中为每10分钟约170至约1500克。 Thus, in most aspects of the present invention, a melt flow rate of the thermoplastic composition to ASTM Test Method D1238-E measured from about 120 to about 6000 grams per 10 minutes, every 10 minutes into ー further aspect from about 150 to about 3000 grams, the step goes ー aspect from about 170 to about 1500 grams per 10 minutes.

[0058] 术语“熔喷纤維”是指将熔融的热塑性材料从多个细密、通常为圆形的模具毛细管中挤出,作为线或丝进入高速的、通常加热的气(例如,空气)流中所形成的纤维,所述气流能够削减熔融的热塑性材料的丝以降低其直径。 [0058] The term "meltblown fibers" refers to the molten thermoplastic material, usually circular, die capillaries extruded from a plurality of fine, as threads or filaments into a high velocity, usually heated gas (e.g., air) formed fibers, filaments of the gas stream can be reduced molten thermoplastic material to reduce their diameter. 在共成形エ艺的特定情况中,熔喷纤维流与ー个或多个从不同方向引入的材料流相交。 In a particular case coform Ester arts, the stream of meltblown fibers and one or more materials ー introduced from a different direction intersecting streams. 之后,通过高速气流携带熔喷纤维和其它材料并沉积在收集表面上。 Thereafter, the meltblown fibers carried by the high velocity gas stream and other materials, and deposited on a collecting surface. 熔喷纤维在所形成的纤网中的分布和方向取决于几何和エ艺条件。 Ester meltblown fibers depends on the geometry and process conditions in the formed web distribution and orientation. 在某些エ艺和设备条件下,所产生的纤维可基本“连续”,定义为当在IOx或20x放大倍率下通过显微镜检查多个视野时具有几个分离、碎纤维或锥形端。 Under certain conditions Ester processes and equipment, the resulting fibers may be substantially "continuous", defined as the field of view through a microscope to check a plurality of at 20x magnification IOx or having several separate, chopped fibers, or a tapered end. 当产生“连续”熔喷纤维时,在单个纤维长度内的单个纤维的侧面通常平行并且具有最小的纤维直径差异。 When generating "continue" meltblown fibers, the fibers in the side of a single individual fiber length and generally parallel to the fibers having the smallest diameter difference. 相反地,在其它条件下,纤维会张拉过度,线股断裂并形成一系列不规则的、离散的纤维长度和许多断头。 Conversely, under other conditions, excessive tension will fibers, strands and form a series of irregular breakage, and many discrete length fiber breakage. 已变细的断裂纤维的回缩通常会产生较大的聚合物团。 It has tapered retracting broken fibers generally have a greater polymer group. 这样的エ艺公开于例如Butin等人的第3,849,241号美国专利中,以与其一致的方式将其内容引入本文作为參考。 Such Ester arts disclosed in, for example U.S. Pat. No. 3,849,241 Butin et al., In a manner consistent with the contents of which are incorporated herein by reference.

[0059] 熔喷纤维可为单组分或多组分。 [0059] Meltblown fibers may be monocomponent or multicomponent. 单组分纤维通常由单个挤出机挤出的聚合物或聚合物的共混物形成。 Monocomponent fibers are generally extruded from a single extruder or a polymer blend forming polymer. 多组分纤维通常由不同的挤出机挤出的两种或多种聚合物(例如,双组分纤维)形成。 Multicomponent fibers are generally extruded from different extruders of two or more polymers (e.g., bicomponent fibers). 可将聚合物排列在纤维的横截面上定位基本恒定的不同区域中。 Polymer may be arranged on the positioning surface of the fiber cross-section substantially different constant regions. 可以任意所需构型排列组分,如皮-芯式、并行式、饼式、海岛式、三岛式、牛眼式或本领域已知的各种其它排列。 It can be arranged in any desired configuration components, such as sheath - core type, parallel type, pie, island type, type Mishima, bovine type known in the art, or various other arrangements. Taniguchi等人的第4,789,592号美国专利、Strack等人的第5,336,552号美国专利、Kaneko等人的第5,108,820号美国专利、Kruege等人的第4,795,668号美国专利、Pike等人的第5,382,400号美国专利、Strack等人的第5,336,552号美国专利、和Marmon等人的第6,200,669号美国专利描述了用于形成多成分纤维的各种方法,为了所有目的将其全部内容引入本文作为參考。 No. Taniguchi et al., US Patent No. 4,789,592, Strack et al., US Patent No. 5,336,552, Kaneko et al., US Patent 5,108,820, Kruege, who first 4,795 , U.S. Patent No., Pike et al., U.S. Pat first, to Strack et al., No. 5,336,552 U.S. Patent No. 5,382,400, and No. Marmon et al U.S. Patent No. 6,200,669 describes a No. 668 various methods for forming multi-component fibers, for all purposes in its entirety incorporated herein by reference. 也可形成具有各种不规则形状的多组分纤维,如Hogle等人的第5,277,976号美国专利、Hills的第5,162,074号美国专利、Hills的第5,466,410号美国专利、Largman等人的第5,069, 970号美国专利、和Largman等人的第5,057, 368号美国专利所描述,为了所有目的将其全部内容引入本文作为參考。 It may also be formed multi-component fibers having various irregular shapes, such as Hogle et al., U.S. Patent No. 5,277,976, Hills U.S. Patent No. 5,162,074, 5,466,410 Hills of the U.S. Patent No., 5,069 of Largman et al., U.S. Pat. No. 970, and the first 5,057 Largman et al., as described in U.S. Patent No. 368, for all purposes in its entirety incorporated herein by reference. 应注意通常使用润湿剂处理熔喷材料以用于如本文所述的应用。 It is noted that the use of a wetting agent is usually treated meltblown material for use as described herein. 可使用任何润湿性处理。 Any process can be used wettability.

[0060] 通常可在共成形无纺纤网中采用任何吸收性材料,如吸收性纤维、颗粒等。 [0060] Any absorbent material can generally be employed in the coform nonwoven web, such as absorbent fibers, particles and the like. 在一个方面中,吸收性材料包括由各种制浆过程形成的纤维,如牛皮纸浆、亚硫酸盐浆、热磨机械浆等。 In one aspect, the absorbent material comprising fibers formed from a variety of pulping processes, such as kraft pulp, sulfite pulp, thermomechanical pulp and the like. 浆纤维可包括软木纤维,其平均纤维长度基于长度加权平均值大于1mm,特别是约 Pulp fibers may include softwood fibers having an average fiber length based on a length weighted average of greater than 1mm, especially from about

I. 5至5_。 I. 5 to 5_. 这样的软木纤维可包括但不限于,北方软木、南方软木、红杉、红雪松、铁杉、松树(例如,南方松树)、云杉(例如,黑云杉)、其组合等。 Such softwood fibers can include, but are not limited to, northern softwood, southern softwood, redwood, red cedar, hemlock, pine (e.g., southern pines), spruce (e.g., black spruce), combinations thereof and the like. 适用于本发明的示例性的市售浆纤维包括购自华盛顿,Federal Way的Weyerhaeuser Co.的衆纤维,名称为“CF-405”。 Exemplary commercially available pulp fibers suitable for the present invention include all fibers available from Washington, Federal Way of Weyerhaeuser Co., entitled "CF-405". 也可以使用硬木纤维,如桉树、枫树、桦树、白杨等。 Hardwood fibers may also be used, such as eucalyptus, maple, birch, aspen, and the like. 在某些情况下,特别需要桉树纤维以提高纤网的柔软性。 In certain instances, eucalyptus fibers particularly desirable to improve the flexibility of the web. 桉树纤维也可提高亮度,増加不透明度,并改变纤网的孔结构以提高其芯吸能力。 Eucalyptus fibers can also enhance the brightness, to increase in opacity, and change the pore structure of the web to increase its wicking ability. 此外,如果需要,可使用从回收材料中获得的二次纤维,如来自来源例如新闻纸、再生纸板和办公废纸的纤维浆。 Further, if desired, secondary fibers obtained from the use of recycled materials, such as fiber pulp from sources such as newsprint, reclaimed paperboard, and office waste. 此外,其它天然纤维也可用于本发明,如竹、蕉麻、印度草、马利筋绒、菠萝叶等。 Further, other natural fibers can also be used in the present invention, such as bamboo, abaca, Indian grass, milkweed floss, pineapple leaf and the like. 此外,在某些情况下,也可利用合成纤维。 Further, in some cases, synthetic fibers may also be utilized.

[0061] 除浆纤维外或与浆纤维结合,吸收性材料也可包括以纤维、颗粒、凝胶等形式存在的超吸收性材料。 [0061] In addition to pulp fibers or pulp fibers in combination with absorbent material may also comprise superabsorbent material is present in fibers, particles, gels and the like. 一般来说,超吸收性材料为在含有O. 9重量百分数的氯化钠水溶液中,能够吸收至少约其重量10倍的水溶胀性材料,在某些情况下,至少约其重量20倍或至少约30倍。 In general, the superabsorbent material is an aqueous solution containing sodium chloride in a weight percent O. 9, which is capable of absorbing at least about 10 times its weight of water-swellable material, in some cases, at least about 20 times its weight or at least about 30-fold. 超吸收性材料可由天然、合成和改性的天然聚合物和材料形成。 The superabsorbent materials can be natural, synthetic, and modified natural polymers and materials. 如Mitchell等人第6,623,576号美国专利中所公开,合成的超吸收性聚合物的实例包括含有轻度交联的未中和酸性吸水性树脂和轻度交联的未中和的碱性吸水性树脂的材料。 The Mitchell et al., U.S. Pat. No. 6,623,576 disclosed synthetic examples containing superabsorbent polymers include lightly crosslinked unneutralized acidic water-absorbent resin and a lightly crosslinked unneutralized the basic water-absorbent resin material. 此外,实例包括聚(丙烯酸)和聚(甲基丙烯酸)、聚(丙烯酰胺)、聚(こ烯基醚)、马来酸酐与こ烯基醚和α-烯烃的共聚物、聚(こ烯基吡咯烷酮)、聚(こ烯基吗啉酮)、聚(こ烯醇)、及其混合物和共聚物的碱金属盐和铵盐。 Further, examples include poly (acrylic acid) and poly (methacrylic acid), poly (acrylamide), poly (ko alkenyl ethers), maleic anhydride and alkenyl ether ko and α- olefin copolymer, a poly (alkylene ko pyrrolidone), poly (alkenyl ko morpholinone), poly (ko alcohol), and alkali metal and ammonium salts of the mixtures and copolymers. 此外,超吸收性材料包括天然和改性的天然聚合物,如淀粉、水解的丙烯腈接枝淀粉、丙烯酸接枝淀粉、甲基纤维素、壳聚糖、羧甲基纤维素、羟丙基纤维素,和天然树胶,如藻酸盐、黄原胶、刺槐豆胶等。 In addition, the superabsorbent materials include natural and modified natural polymers, such as starch, hydrolyzed acrylonitrile grafted starch, acrylic acid grafted starch, methyl cellulose, chitosan, carboxymethyl cellulose, hydroxypropyl cellulose, and natural gums, such as alginates, xanthan gum, locust bean gum and the like. 天然和完全或部分合成的超吸收性聚合物的混合物也可用于本发明。 A mixture of superabsorbent polymer and wholly or partially synthetic natural may also be used in the present invention. 特别合适的超吸收性聚合物为HYSORB 8760超吸收性(购自Charlotte的BASF,北卡罗来纳州)和FAVOR SXM 9500超吸收性材料(购自Greensboro的EVONIK Stockhausen,北卡罗来纳州)。 (BASF available from the Charlotte, North Carolina) Particularly suitable superabsorbent polymer is a superabsorbent HYSORB 8760 and FAVOR SXM 9500 superabsorbent material (available from Greensboro, EVONIK Stockhausen, North Carolina).

[0062] 本发明所述的共成形纤网通常由エ艺制备而成,其中至少ー个熔喷模头(例如,两个)排列在滑槽附近,通过所述滑槽加入吸收性材料,同时形成纤网。 According to the invention [0062] The present coform webs typically prepared from Ester arts by ー wherein at least one meltblown die (e.g., two) arranged in the vicinity of the chute, the chute through which absorbent material is added, while the web is formed. Anderson等人的第4,100, 324号美国专利、Georger等人的第5,350, 624号美国专利、和Georger等人的第5,508, 102号美国专利、以及Keck等人的美国专利申请公开号2003/0200991和Dunbar等人的2007/0049153公开了该共成形技术的某些实例,为了所有目的将其所有内容引入本文作为參考。 4,100 of Anderson et al, U.S. Patent No. 324, 535 of Georger et al., U.S. Pat. No. 624, Georger et al., And the first 5,508, 102 U.S. Patent, and Keck et al., U.S. Pat. application Publication No. 2003/0200991 and 2007/0049153 Dunbar et al., discloses certain examples of the co-forming technique, for all purposes of all which is incorporated herein by reference.

[0063] 參照图1,例如,显示了用于形成本发明所述的共成形纤网的设备的ー个方面。 [0063] Referring to FIG. 1, for example, it shows the web ー aspect of the apparatus used to form the coform of the present invention. 在该方面中,设备分别包括挤出机14或14'的颗粒料斗12或12',可将丙烯/ α -烯烃热塑性组合物引入其中。 In this aspect, the apparatus includes an extruder 14 or respectively 14 'particles hopper 12 or 12', may be a propylene / α - olefin thermoplastic composition introduced therein. 挤出机14和14'各自具有挤压螺杆(未显示),通过常规的驱动马达(未显示)进行驱动。 Extruders 14 and 14 'each have extrusion screw (not shown), by a conventional drive motor (not shown) is driven. 当聚合物通过挤出机14或14'前进时,由于驱动马达驱动的挤出螺杆的旋转而将其逐渐加热至熔融状态。 When the polymer through an extruder 14 or 14 'is advanced, the drive motor driving the rotation of the extrusion screw which is gradually heated to a molten state. 可在多个分离的步骤中实现加热,当其分别通过挤出机14和14'的分离的加热区域向熔喷模具16和18前进时温度逐渐升高。 A heating step may be implemented in a plurality of separate, and gradually increases when the meltblowing die 16 and 18 forward when the temperature of the heating zone which are separated by the extruder 14 and 14 '. 熔喷模具16和18可为另ー种加热区域,其中热塑性树脂的温度保持在高水平以便挤出。 Meltblowing die 16 and 18 may be other kinds ー heating zone, wherein the temperature is maintained at a high level the thermoplastic resin for extrusion.

[0064] 如上所述,当使用两个或多个熔喷模头时,应懂得由单个模头产生的纤维可为不同类型的纤维。 [0064] As described above, when two or more meltblowing dies, it should be understood fibers produced by a single die may be different types of fibers. 也就是说,ー种或多种尺寸、形状、或聚合组合物可不同,并且纤维可为单组分或多组分纤维。 That is, ー or more of size, shape, or the polymerizable composition may be different, and may be monocomponent fibers or multicomponent fibers. 例如,第一熔喷模头可产生较大的纤维,如平均直径约为10微米或更大的纤维,在进ー步的方面中约为15微米或更大,在更进ー步的方面中为约20至约50微米,而第二模头可产生较小的纤维,如平均直径约为10微米或更小的纤维,在进ー步的方面中约为7微米或更小,在更进一歩的方面中为约2至约6微米。 For example, a first melt blown die head may have a greater fiber, such as the average fiber diameter of about 10 or more microns, about 15 microns or greater in the feed step ー aspect, in terms of more feed step ーfrom about 20 to about 50 microns, and the second die can produce smaller fibers, such as an average diameter of about 10 microns or less fibers, about the intake ー further aspect 7 microns or less, in ho into a further aspect from about 2 to about 6 microns. 此外,希望每个模头能够挤出大约相同的量的聚合物,以使由每个熔喷模头得到的共成形无纺纤网材料的基重的相对百分比基本相同。 Further, it is desirable for each die can be extruded about the same amount of polymer, so obtained by each meltblowing die relative percentage of the coform basis weight nonwoven web of substantially the same material. 供选择地,相对基重产生偏离也是可取的,以使ー个模头或另ー个负责以基重计的大部分共成形纤网。 Alternatively, the basis weight relative deviation occurs is also desirable to make a die or other ー ー a group is responsible for most of the weight of the coform webs. 作为ー个具体的实例,对于基重为每平方码I. O盎司或“osy”(每平方米34克或“gsm”)的熔喷纤维无纺纤网材料,希望第一熔喷模头产生熔喷纤维无纺纤网材料的基重的约30%,而ー个或多个随后的熔喷模头产生剩余的熔喷纤维无纺纤网材料的基重的70%。 Meltblown fiber nonwoven web material ー as a specific example, for a basis weight of I. O ounces per square yard or "osy" (34 grams per square meter or "gsm"), it is desirable first meltblowing die basis weight meltblown fibers produced about 30% of the nonwoven web material, and one or more subsequent ー meltblowing die to produce the remaining 70% of the basis weight meltblown fibers nonwoven web material. 一般来说,共成形无纺纤网的总基重为约IOgsm至约350gsm,更特别地为约17gsm至约200gsm,仍更特别地为约25gsm至约150gsm。 In general, the total basis weight of the coform nonwoven web is from about IOgsm to about 350 gsm, more particularly from about 17gsm to about 200 gsm, still more particularly from about 25gsm to about 150gsm.

[0065] 设置每个熔喷模具16和18以使每个模具的两个牵伸气流汇合来形成单ー气流,当熔融线20离开每个熔喷模具的洞或孔24时可夹带并牵伸熔融线20。 [0065] Each meltblowing die set 16 and 18 so that the two drawing dies each stream to form a single merging ー gas stream, and the retractor 24 may be entrained when the melt line 20 of each meltblowing die leaving holes or pores fusion line 20 extends. 熔融线20形成直径通常小于孔24的直径的纤维,或根据牵伸的程度形成微纤維。 Melting wire 20 having a diameter generally smaller than the fiber diameter of holes 24, or form microfibers according to the degree of drawing. 因此,每个熔喷模具16和18具有相应的含有夹带的热塑性聚合物纤维的单ー气流26和28。 Thus, each meltblowing die 16 and 18 have respective single ー stream containing entrained thermoplastic polymer fibers 26 and 28. 调整含有聚合物纤维的气流26和28以汇合在碰撞区域30。 Adjusting gas stream 26 containing polymer fibers 28 and 30 to converge at the impact area. 通常以相对于成形表面的一定角度排列熔喷模头16和18,如Georger等人的第5,508, 102号美国专利和第5,350, 624号美国专利中所描述。 Typically meltblowing dies 16 and 18, such as of 5,508 Georger et al., And U.S. Patent No. 5,350 102, U.S. Pat. No. 624 described with respect to the forming surface arranged at an angle. 參照图2,例如,熔喷模具16和18可以角度α取向,所述角度α由平面“Α”的切线到两个模具16和18测得。 Referring to FIG. 2, for example, meltblowing die 16 and 18 may be oriented an angle α, said angle α into two molds 16 and 18 as measured from the plane "Α" tangent. 如图所示,平面“A”通常与成形表面58平行(图I)。 As illustrated, the plane "A" is generally parallel to the forming surface 58 (FIG. I). 通常,将每个模具16和18的角度设置为约30至约75度,在进ー步的方面中为约35°至约60°,在更进ー步的方面中为约45°至约55°。 Typically, the angle of each die 16 and 18 is set to be from about 30 to about 75 degrees, in step ー aspect from about 35 ° to about 60 °, about 45 ° in the step goes ー aspect about 55 °. 模具16和18可取向相同或不同的角度。 16 and 18 may be the same mold or a different orientation angles. 事实上,实际上可通过使ー个模具朝向与另ー个模具不同的角度来加强共成形纤网的纹理。 In fact, in practice by reacting ー ー molds toward another angle different molds to enhance the texture of the coform webs.

[0066] 再次參照图1,在碰撞区域30将吸收性纤维32 (例如,绒毛浆纤维)分别加入热塑性聚合物纤维20和21的两股气流26和28中。 [0066] Referring again to FIG. 1, the impact area 30 of the absorbent fibers 32 (e.g., fluff pulp fibers) were added two streams of thermoplastic polymer fibers 26 and 28, 20 and 21. 将吸收性纤维32分别引入热塑性聚合物纤维20和21的两股气流26和28中的目的是在合并的热塑性聚合物纤维流26和28的内部产生逐渐分布的吸收性纤维32。 The two strands 28 and the object 32 are introduced into the absorbent fibers of thermoplastic polymer fibers 20 and 21 to produce gas stream 26 is distributed gradually absorbent fibers 32 within the combined streams 26 of thermoplastic polymer fibers and 28. 这可通过将含有吸收性纤维32的第二气流34并入热塑性聚合物纤维20和21的两股气流26和28之间来实现,以使所有三股气流以可控的方式汇合。 This may be accomplished by a second gas stream containing the absorbent fibers 32 of thermoplastic polymer fibers 34 incorporated into two streams 20 and 21 to achieve between 26 and 28, so that all three gas streams merge in a controlled manner. 由于其在形成后仍然相对发粘并且为半熔融状态,因此熔喷纤维20和21在与吸收性纤维32时可同时粘附并缠绕在吸收性纤维32上以形成连贯的无纺结构。 Since it is still relatively tacky after forming and is a semi-molten state, so the meltblown fibers 20 and 21 can be wound on and adhered to the fibers of the absorbent 32 to form a coherent nonwoven structure at the same time with the absorbent fibers 32.

[0067] 为实现纤维的合并,可采用任意传统设备,如具有多个齿38的分选滚轴36,所述齿38适于将吸收性纤维的垫或棉胎分离成单个吸收性纤维32。 [0067] To achieve the combined fibers, can be any conventional apparatus, such as a sorter having a plurality of teeth 38 of the axis of roll 36, the teeth 38 of the absorbent batt or pad is adapted to separate the fibers into individual absorbent fibers 32 . 当采用时,通过滚轴装置42将纤维32的片材或垫40加至分选滚轴36中。 When employed, the roller device 42 through a sheet or mat 40 of fibers 32 applied to the sorting roll 36. 当分选滚轴36的齿38将纤维32的垫40分离为单独的吸收性纤维32后,通过喷嘴44将单个纤维32输送至热塑性聚合纤维流中。 When the separation roller 36 of the teeth 38 of the fiber mat 40 is separated into 32 separate the absorbent fibers 32, fed through the nozzles 44 of the individual fibers 32 to the thermoplastic polymeric fiber stream. 外壳46包围分选滚轴36并在外壳46和分选滚轴36的齿38的表面之间提供通道或间隙48。 A housing enclosing the sorting roller 46 and 36 provide a channel or gap 48 between the surface of the teeth 38 of the housing 46 and the separation roller 36. 借助气道50将气体例如空气供给至分选滚轴36的表面和外壳46之间的通道或间隙48中。 A gas channel 50 by means of gas 48 such as air is supplied to the separation roller 36 and the surface of the channel or gap between the housing 46. 气道50在喷嘴44和间隙48的交叉点52处能够进入通道或间隙48中。 Airways 44 and nozzles 50 in the gap 48 of the intersection 52 to enter the channel or gap 48. 足量供应气体以充当通过喷嘴44输送吸收性纤维32的介质。 An adequate supply of gas to act as a transport medium absorbent fibers 32 through the nozzle 44. 从气道50供应的气体也可充当将吸收性纤维32从分选滚轴36的齿38中除去的辅助手段。 From the gas supply 50 may also serve as the airway of the absorbent fibers 32 from the sorting roll adjunct 36 of the teeth 38 removed. 可通过任意常规装置供应气体,例如鼓风机(未显示)。 It may be by any conventional means for supplying a gas, such as a blower (not shown). 预期的是,添加剂和/或其它材料可加入或夹带在气流中以处理吸收性纤维32。 It is contemplated that additives and / or other materials may be added to or entrained in the gas stream 32 to process the absorbent fibers. 通常大约以吸收性纤维32离开分选滚轴36的齿38的速度通过喷嘴44传输单个吸收性纤维32。 Absorbent fibers typically about 32 to leave the sorting roller 36 of the transmission speed of the teeth 38 of the nozzle 44 through the individual absorbent fibers 32. 換言之,当吸收性纤维32离开分选滚轴36的齿38并进入喷嘴44时,通常从其离开分选滚轴36的齿38的那一点开始在大小和方向上保持其速度。 In other words, when the absorbent fibers 32 leaving the separation roller 36 and the teeth 38 into the nozzle 44, generally away from the separation roller 36 that the start point of the teeth 38 maintain their velocity in direction and magnitude. Anderson等人的第4,100,324号美国专利更加详细地讨论了这样的装置。 Anderson et al U.S. Pat. No. 4,100,324 discusses such a device in more detail.

[0068] 如果希望,可调整二次气流34的速度以实现性能不同的共成形结构。 [0068] If desired, adjust the speed of the secondary air flow 34 to achieve different properties of the coform structure. 例如,当在碰撞区域30接触时调整二次气流34的速度使其高于热塑性聚合物纤维20和21的各股气流26和28的速度吋,吸收性纤维32以渐变式结构并入共成形无纺纤网54中。 For example, when the secondary air flow rate adjustment at the impact area 30 of the contact 34 to be higher than the speed of each of the thermoplastic polymer fiber streams 20 and 21, 26 and 28 inches, the absorbent fibers 32 are incorporated in the gradient structure coform nonwoven web 54. 也就是说,吸收性纤维32在共成形无纺纤网54之间的浓度高于在外表面的浓度。 That is, the absorbent fibers 32 in a concentration of between coform nonwoven web 54 is higher than the concentration of the outer surface. 另ー方面,当在碰撞区域30接触时二次气流34的速度小于热塑性聚合物纤维20和21的各股气流26和28的速度时,吸收性纤维32以基本均匀的方式并入共成形无纺纤网54中。ー another aspect, when the collision speed of the contact area 30 is less than the speed of the secondary gas stream 34 of thermoplastic polymer fibers 20 and 21 each of streams 26 and 28, the absorbent fibers 32 are incorporated in a substantially uniform manner without coform textile web 54. 也就是说,吸收性纤维32在共成形无纺纤网54中的浓度基本相同。 That is, the absorbent fibers 32 in a concentration coform nonwoven web 54 are substantially the same. 这是由于吸收性纤维32的低速流被吸入热塑性聚合物纤维20、21的高速流中会增强涡流混合,导致吸收性纤维32的连续分布。 This is due to the low flow of absorbent fibers 32 is drawn into the high-speed stream of thermoplastic polymer fibers 20, 21 will enhance turbulent mixing, resulting in a continuous distribution 32 of absorbent fibers.

[0069] 为了将热塑性聚合物纤维20、21和吸收性纤维32的复合材料流56转化为共成形无纺纤结构54,将收集装置定位于复合材料流56的路径中。 [0069] To the thermoplastic polymer fibers 20, 21 and 32 of the absorbent composite fiber stream 56 into coform nonwoven structure 54, the collection device positioned on the composite material in the flow path 56. 收集装置可为由滚轴60驱动的成形表面58 (例如,袋、鼓、线、布等),如图I中箭头62所示进行旋转。 Collecting means may be driven by the forming surfaces 60 of the rollers 58 (e.g., bags, drums, thread, cloth, etc.), as shown by arrow I in FIG 62 is rotated. 热塑性聚合物纤维20、21和吸收性纤维32的合并流在成形表面58的表面上作为连贯的纤维基体被收集, 以形成共成形无纺纤网54。 The combined thermoplastic polymer fibers and absorbent fibers 20, 21, 32 on the flow surface of the forming surface 58 of the substrate as a coherent fiber is collected to form the coform nonwoven web 54. 如果希望,可采用真空箱(未显示)辅助将接近熔融的熔喷纤维牵引至形表面58上。 If desired, a vacuum box may be employed (not shown) to close the auxiliary traction molten meltblown fibers 58 onto a shaped surface. 所得到的有纹理的共成形结构54是连贯的,并可从成形表面58上移除而作为自支撑无纺材料。 The resulting textured coform structure 54 is coherent and may be removed as a self-supporting nonwoven material from the forming surface 58.

[0070] 应懂得本发明绝不限于上述方面。 [0070] should be understood the invention is not limited to the above aspects. 例如,在供选择的方面中,可采用基本沿着成形表面延伸的第一和第二熔喷模头,其方向基本横跨成形表面的运动方向。 For example, in the alternative, it can be formed substantially along the first and second meltblowing die surface extending substantially in a direction across the direction of movement of the forming surface. 模头可同样排列在基本垂直的位置,即垂直于成形表面,以使由此产生的熔喷纤维直接喷在成形表面上。 The die can likewise be arranged in a substantially vertical position, i.e. perpendicular to the forming surface, such that the resulting melt blown fibers directly onto the forming surface. 本领域熟知的这样的构型在例如Dunbar等人的第2007/0049153号美国专利申请中详细描述。 Known in the art such configurations are described in, for example, U.S. Patent Application No. 2007/0049153 Dunbar et al in detail. 此外,虽然上述方面采用多个熔喷模头以产生不同尺寸的纤维,也可采用单个模头。 Further, although the above aspect of the use of a plurality of meltblowing die to produce fibers of different sizes, a single die may be employed. 在例如Lassig等人的第2005/0136781号美国专利申请中描述了这样的エ艺的实例,为了所有目的将其全部内容引入本文作为參考。 For example, U.S. Patent Application No. 2005/0136781 Lassig et al described in Ester Examples of such arts, for all purposes in its entirety incorporated herein by reference.

[0071] 如上所示,在某些情况下需要形成具有纹理的共成形纤网。 As shown in [0071] above, in some situations where a textured coform web. 再次參照图1,例如本发明的ー个方面采用了本质上带孔的成形表面58,以使纤维能够被拉过表面的开ロ并形成从对应的成形表面58中开ロ的材料表面突起的三维布样丛。 Referring again to FIG. 1, for example ー aspect of the present invention essentially uses a perforated forming surface 58, so that the fibers can be pulled through the opening to form the protrusions ro surface apart from the surface of the material corresponding ro the forming surface 58 Tube-like cluster. 带孔表面可以通过使一些纤维穿透的足够的开ロ的任意材料来提供,如高度可穿透的成形丝线。 Perforated surface may be provided by any material sufficient to make some of the fibers open ro penetration, such as highly permeable forming wire. 丝线编织的几何形状和加工条件可用于改变材料的纹理或丛。 Braided silk texture geometry and processing conditions can be used to change the material or bundle. 特定选择取决于所述的峰大小、形状、深度、表面丛“密度”(即,每单位面积的峰或丛的数量)等。 Depending on the particular choice of peak size, shape, depth, surface plexus "density" (i.e., the peak or burst number per unit area) and the like. 例如在ー个方面中,丝线的开ロ面积为约35%至约65%,在进ー步的方面中为约40%至约60%,在更进ー步的方面中为约45%至约55%。 For example, in ー aspect, open ro area of ​​the wire is from about 35% to about 65%, the intake ー further aspect from about 40% to about 60%, at goes ー further aspect about 45% to about 55%. 一个不例性的高开ロ区域成形表面为Albany International Co. of Albany, New York生产的FORMTECH 6成形丝线。 An embodiment of a high open area ro shaped surface Albany International Co. of Albany, New York production FORMTECH 6 forming wire. 这样的丝线的“丝线目数”为每平方英寸约六股乘六股(每平方厘米约2. 4乘2. 4股),即,每平方英寸产生约36个孔或“洞”(约每平方厘米5. 6个),因此能够在每平方英寸材料中形成约36个丛或峰(每平方厘米约5. 6个峰)。 "Wire mesh" of such filaments per square inch to about six-by-six shares shares (per square centimeter to about 2.4 by 2.4 Unit), i.e., about 36 per square inch to produce holes or "holes" (about 5.6 per square centimeter), it is possible to form a clump or about 36 peaks (per square centimeter to about 5.6 peaks) per square inch of material. FORMTECH 6成形丝线的经纱直径为约I毫米聚酷,纬纱直径为约I. 07毫米聚酷,标称透气度约为41. Sm3/min (1475ft3/min),标称厚度约为0. 2厘米(0. 08英寸),开ロ区域约为51%。 The diameter of the warp threads FORMTECH 6 formed about I mm polyethylene cool weft I. 07 mm diameter of about Cool Poly, a nominal air permeability of about 41. Sm3 / min (1475ft3 / min), a nominal thickness of about 0.2 cm (0.08 inches), open area of ​​about 51% ro. 另ー个购自Albany International Co.示例性的成形表面为FORMTECH 10成形丝线,其丝线目数为姆平方英寸约10股乘10股(每平方厘米约4乘4股),即每平方英寸产生约100个孔或“洞”(每平方厘米约15. 5个),因此能够在每平方英寸材料中形成约100个丛或峰(每平方厘米约15. 5个峰)。 Another ー available from a molding surface of Albany International Co. exemplary FORMTECH 10 is shaped wires, wire mesh which is about 10 square inches Beam shares by 10 shares (per square centimeter to about 4 by 4 Unit), i.e. produced per square inch about 100 pores or "holes" (per square centimeter to about 15.5), can be formed about 100 plexus or peaks (per cm of about 15.5 peaks) per square inch of material. 另ー个合适的成形丝线为FORMTECH 8成形丝线,其开ロ面积为47%,也购自Albany International。 Another ー a suitable shaping of the wires forming the wire FORMTECH 8, which open area is 47% ro, also available from Albany International. 当然,也可采用其它成形丝线和表面(例如,鼓、板、垫等)。 Of course, other shaped wires may be employed and the surface (e.g., drum, sheet, pad, etc.). 例如,可使用表面刻有凹陷的垫以使共成形纤维填充凹陷,产生与凹陷相对应的丛。 For example, a recessed pad surface engraved so coform fiber filled recess, the recess produced with the corresponding cluster. 凹陷(丛)可呈现各种形状,包括但不限于圆形、方形、矩形、涡旋状、肋骨状、线形、云状等。 Recess (bundle) may assume various shapes, including but not limited to circular, square, rectangular, spiral-shaped, rib-shaped, linear, cloud-like shape. 另外,表面变化可包括但不限于交替的编织图案、交替的链尺寸、释放涂层(例如,硅酮、含氟化学物等)、静电耗散处理等。 Further, the surface variations may include, but are not limited to alternating weave pattern, alternate the size of the chain, a release coating (e.g., silicones, fluorochemicals, etc.), static dissipation treatment. Dunbar等人的第2007/0049153号美国专利申请描述了可采用的其它合适的带孔表面。 Dunbar et al., U.S. Patent Application No. 2007/0049153 describes other suitable perforated surface may be employed.

[0072] 无论采用何种特定的纹理化方法,本发明所述的熔喷纤维所形成的丛均能够更好地保持所需形状和表面轮廓。 [0072] Regardless of the particular method employed texturing, plexus meltblown fibers formed according to the present invention are better able to maintain the desired shape and surface contour. 即,由于熔喷纤维以相对较慢的速率結晶,因此在沉积在成形表面时为柔软的,使其能够覆盖并贴合表面轮廓。 That is, since the meltblown fibers at a relatively slow crystallization rate, it is possible to cover the deposition surface during molding a soft, so that bonding and surface contour. 当纤维结晶后,它们能够保持形状并形成丛。 When the fiber crystallinity, which can maintain the shape and form plexus. 所得到丛的大小和形状取决于所使用的成形表面的类型、所沉积的纤维类型、在丝线下方用于将纤维吸在成形表面上和成形表面中的空气真空的体积、和其它相关因素。 Type shaping surface depend on the size and shape of the cluster obtained, the type of fibers deposited on the wire under the fibers for the volume of air sucked in vacuo and the upper surface of the forming surface forming, and other relevant factors. 例如,丛可从材料表面突出约O. 25毫米至至少约9毫米,在进ー步的方面中,为约O. 5毫米至约3毫米。 For example, a cluster may protrude at least about O. 25 mm to about 9 mm from the surface of the material, in step into ー, from about O. 5 millimeters to about 3 millimeters. 一般来说,丛充满了纤维因此在用于擦拭和擦洗时具有理想的弾性。 In general, full fiber bundle therefore has desirable properties when used Dan wiping and scrubbing. [0073] 图3显示了有纹理的共成形纤网100的横截面的图示,所述共成形纤网100具有第一外表面122和第二外表面128。 [0073] Figure 3 shows a cross-sectional illustration of a textured webs coform 100, 122 and second outer surface 128 having a first web outer surface 100 of the coform. 外表面122、128中至少ー个具有三维表面纹理。 122, 128 in the outer surface of at least one ー having a three-dimensional surface texture. 例如在图3中,第一外表面122具有三维表面纹理,其包括从共成形材料的平面向上延伸的丛或峰124。 For example, in FIG. 3, the first outer surface 122 having a three-dimensional surface texture, including cluster or peaks 124 extending upwardly from the plane of the coform material. 共成形纤网100的三维性大小的ー种表示为峰-谷比,计算方法为整体厚度“T”除以谷深度“D”。ー three kinds of sizes coform web 100 is indicated as a peak - trough ratio, calculated as the entire thickness "T" is divided valley depth "D". 当根据本发明进行纹理化时,共成形纤网100的峰谷比通常为约5或更小,在进ー步的方面中为约O. I至约4,在更进ー步的方面中为约O. 5至约3。 When texturing according to the present invention, coform webs peak of about 100, or less than 5 generally, the intake ー further aspect from about O. I to about 4, in the step goes aspect ーfrom about 3 to about O. 5. 丛24的数量和排列根据所需的最終用途而有所不同。 24 cluster number and arrangement varies depending on the desired end use. 在纹理较稠密的特定方面中,有纹理的共成形纤网100每平方厘米会具有约2至约70个丛24,在其它方面中,每平方厘米具有约5至50个丛24。 Denser texture particular aspect, textured coform web 100 per cm 2 will have from about 24 to about 70 Cong, in other aspects, per square centimeter having a cluster of about 5 to 50 24. 在纹理较稀疏的某些方面中,共成形纤网100每平方米会具有约100至约20,000个丛,在进ー步的方面中每平方米具有约200至约10,000个丛。 In certain aspects sparse texture, the coform web 100 will have about 100 to about 20,000 per square bundle having from about 200 to about 10,000 plexus into further aspect ー per square meter . 有纹理的共成形纤网100也可在网120的第二表面上显示三维纹理。 Textured coform webs 100 can also display a three-dimensional texture on the second surface 120. 该情况尤其会出现在基重较低的材料中,如由于“镜像”而基重小于约每平方米70克的材料,其中材料的第二表面显示峰偏移或在材料的第一外表面122的峰之间显示。 This happens in particular in the lower basis weight of materials, such as due to the "mirror image" and a basis weight of less than about 70 grams per square meter material, wherein the material of the second surface of the first outer surface of the display material or peak offset display between the peak 122. 在这种情况下,如上所述测量外表面122、128的谷深度D,然后相加以确定总的材料谷深度。 In this case, measured as described above the outer surface valley depth D 122,128 and then summed to determine the total material valley depth.

[0074] 參照以下共成形测试方法和实施例能够更好地理解本发明所述的共成形材料100。 [0074] reference to the following test methods and coform embodiments can be better understood coform material 100 according to the present invention.

[0075] 共成形测试方法 [0075] Test Method coform

[0076] 熔体流动速率: [0076] Melt flow rate:

[0077] 熔体流动速率(“MFR”)为当在230° C下在10分钟内施加2160克的负荷时,被迫通过挤出式流变仪孔(直径为2. 09mm (O. 0825英寸))的聚合物的重量(以克计)。 When [0077] The melt flow rate ( "MFR") is applied when the load of 2160 grams in 10 minutes at 230 ° C, forced through an extrusion rheometer orifice (diameter 2. 09mm (O. 0825 inch)) of the weight of the polymer (in grams). 除非另有说明,通常根据ASTM测试方法D1238-E测定熔体流动速率。 Unless otherwise stated, the melt flow rate is typically measured in accordance with ASTM Test Method D1238-E.

[0078] 热性能: [0078] Thermal properties:

[0079] 根据ASTM D-3417,通过差示扫描量热法(DSC)测定熔融温度和结晶温度。 [0079] According to ASTM D-3417, melting and crystallization temperatures measured by differential scanning calorimetry (DSC). 差示扫描量热计为装备液氮冷却配件和UNIVERSAL ANALYSIS 2000 (4. 6. 6版)分析软件程序的DSC QlOO 差不扫描量热计,均购自TA Instruments Inc. ofNew Castle, Delaware。 A differential scanning calorimeter is equipped with a liquid nitrogen cooling accessory and UNIVERSAL ANALYSIS 2000 (4. 6. 6 EDITION) analysis software program without a DSC QlOO differential scanning calorimeter, both available from TA Instruments Inc. ofNew Castle, Delaware. 为避免直接接触样品,使用镊子或其它工具。 To avoid direct contact with the samples, tweezers or other tools. 将样品置于铝盘中,在分析天平上精确称量O. Ol毫克。 The sample was placed in an aluminum pan, O. Ol mg accurately weighed on an analytical balance. 用盖子将材料样品压在盘上。 The sample was pressed with a lid on the plate material. 通常将树脂颗粒直接放入称量盘中并切割纤维以适应放置在称量盘上并覆盖盖子。 Usually weighing pan directly into the resin particles and fibers cut to fit and placed on the pan lid covering.

[0080] 如差示扫描量热计的操作手册中所述,使用铟金属标准物校准差示扫描量热计并进行基线校正。 [0080] The differential scanning calorimeter operating manual of the, calibrated using an indium metal standard differential scanning calorimeter and baseline correction. 将材料样品放入差示扫描量热计的测试室中以进行测试,使用空盘作为对照。 The material sample was placed in a differential scanning calorimeter test chamber for testing, using an empty pan as a control. 所有测试均在使用每分钟55-立方厘米的氮气(エ业级)浄化测试室后进行。 All tests were performed using the 55- cubic centimeters per minute nitrogen (Ester industry grade) purge the test chamber. 对于树脂颗粒样品,加热和冷却程序为2-循环测试,从测试室平衡至-25° C时开始,接着是第ー加热周期,以每分钟10° C的加热速率加热至温度为200° C,接着在200° C下平衡样品3分钟,接着是第一冷却周期,以每分钟10° C的冷却速率冷却至温度为-25° C,接着在-25° C下平衡样品3分钟,然后是第二加热周期,以每分钟10° C的加热速率加热至温度为200° C。 For resin pellet samples, the heating and cooling program is a 2 cycle test, -25 ° C to the start of the test from the balance chamber, then the first heating cycle ー heated to a temperature at a heating rate of 10 ° C per minute to 200 ° C and then at 200 ° C for samples were equilibrated for 3 minutes, followed by a first cooling period at a cooling rate of 10 ° C per minute to cool to a temperature of -25 ° C, then at -25 ° C samples were equilibrated for 3 minutes, and then It is a second heating cycle at a heating rate of 10 ° C per minute to a temperature of 200 ° C. 所有测试均在使用每分钟55-立方厘米的氮气(エ业级)浄化测试室后进行。 All tests were performed using the 55- cubic centimeters per minute nitrogen (Ester industry grade) purge the test chamber. 然后使用UNIVERSAL ANALYSIS 2000分析软件程序评价结果,确定并对熔融和结晶温度进行量化。 Then UNIVERSAL ANALYSIS 2000 analysis software program evaluation results, and determining the melting and crystallization temperature quantization.

[0081] 共成形的实施例 Embodiment [0081] Example coform

[0082] 如上所述以及如图I所示,共成形纤网的各种样品由两股加热的熔喷纤维流和单一的纤维化的浆纤维流形成。 [0082] As described above and shown in FIG. I, the various samples coform webs formed from pulp fibers bifurcated flow heated stream of meltblown fibers and a single fibrosis. 在各种样品中,熔喷纤维由以下聚合物组合物形成: In the various samples, the meltblown fibers formed from a polymer composition:

[0083] I.实施例I的聚合物组合物为丙烯均聚物,其密度为0.91g/cm3,熔体流动速率为1200g/10分钟(230 ° C,2. 16kg),结晶温度为113°C,熔融温度为156°C,购自LyondellBasell Industries in Rotterdam, The Netherlands,商品名为METOCENE MF650X聚合物。 [0083] I. Example I polymer composition is a propylene homopolymer, having a density of 0.91g / cm3, a melt flow rate 1200g / 10 minutes (230 ° C, 2. 16kg), a crystallization temperature of 113 ° C, a melting temperature of 156 ° C, available from LyondellBasell Industries in Rotterdam, The Netherlands, under the trade name METOCENE MF650X polymer.

[0084] 2.实施例2的聚合物组合物为75wt%丙烯均聚物(ACHIEVE 6936G1聚合物)和25wt%丙烯/こ烯共聚物(VISTAMAXX 2370聚合物,密度为O. 868g/cm3,熔体流动速率为200g/10分钟(230° C,2. 16kg))的共混物,密度为O. 89g/cm3,熔体流动速率为540g/10分钟(230° C, 2. 16kg),购自ExxonMobil Chemical Corp. of Houston, Texas。 [0084] 2. The polymer composition of Example 2 75wt% of a propylene homopolymer (ACHIEVE 6936G1 polymer) and 25wt% propylene / ko copolymer (VISTAMAXX 2370 polymer density O. 868g / cm3, melt flow rate of 200g / 10 minutes (230 ° C, 2. 16kg)) blend, a density of O. 89g / cm3, a melt flow rate of 540g / 10 minutes (230 ° C, 2. 16kg), available from ExxonMobil Chemical Corp. of Houston, Texas.

[0085] 3.实施例3的聚合物组合物为基于烯烃的弾性体(VISTAMAXX 2330聚合物,密度为0. 868g/cm3,熔体流动速率为290g/10分钟(230° C,2. 16kg),こ烯含量为13. 0wt%),购自ExxonMobil Chemical Corp. ofHouston, Texas。 [0085] 3. The polymer composition of Example 3 as a member of the olefin-based Tan (VISTAMAXX 2330 polymer, a density of 0. 868g / cm3, a melt flow rate of 290g / 10 minutes (230 ° C, 2. 16kg ), an ethylene content of ko 13. 0wt%), available from ExxonMobil Chemical Corp. ofHouston, Texas.

[0086] 各个聚合物组合物还含有3. 0wt%的表面活性剂(IRGASURF HL 560表面活性剤,购自Ciba/BASF of Charlotte,North Carolina)。 [0086] The polymer composition further comprises respective 3. 0wt% surfactant (active IRGASURF HL Ji surface 560, available from Ciba / BASF of Charlotte, North Carolina). 衆纤维为完全处理的南方软木衆,购自Weyerhaeuser Co. ofFederal Way, Washington,名为“CF-405,,。 Southern softwood fiber all the public fully processed, purchased from Weyerhaeuser Co. ofFederal Way, Washington, called the "CF-405 ,,.

[0087] 对于每个实施例,以每小时每英寸模具尖端2. O磅聚合物的速率通过直径为.020英寸的孔将每种熔喷纤维流的聚合物供应至各自的熔喷模具,以获得50wt%的熔喷纤维含量。 [0087] For each example, per hour per inch die tip speed 2. O lbs of polymer by the diameter of each polymer stream of meltblown fibers supplied to each meltblowing die is .020 inch hole, to obtain a content of 50wt% meltblown fibers. 碰撞区域与成形丝线的距离(即,成形高度)约为12英寸,熔喷模具尖端之间的距离约为6英寸。 From the impact area of ​​the forming wire (i.e., forming height) of about 12 inches, the distance between the meltblowing die tip approximately 6 inches. 位于浆纤维流上游的熔喷模具朝向相对于浆流48°的角度,另ー个熔喷模具(位于浆流下游)朝向相对于浆流48°的角度。 Positioned upstream of the fiber pulp flow towards the meltblowing die with respect to slurry flow angle 48 °, and the other ー meltblown die (located downstream of the plasma flow) direction with respect to an angle of 48 ° slurry flow. 成形丝线为FORMTECH 8成形丝线(AlbanyInternational Corp. of Albany, New York)。 Shaped wires forming the wire is FORMTECH 8 (AlbanyInternational Corp. of Albany, New York). 为了获得不同类型的丛,将橡胶垫置于成形丝线的上表面。 In order to obtain different types of cluster, the rubber pad was placed on the surface of the forming wire. 一个这种垫的厚度约为0.95厘米,并含有以六角形阵列排列的孔。 Such a mat thickness of about 0.95 cm, and containing holes arranged in a hexagonal array. 孔的直径约为0. 64厘米,间隔约0. 95厘米(中心到中心)。 Diameter of the holes is about 0.64 cm apart, at about 0.95 cm (center to center). 也可使用其它类型的垫(例如,云状)。 It may also be other types of pads (e.g., cloudy). 真空箱位于成形丝线下方以协助网的沉积,将其设置为30英寸水柱。 A vacuum box located below the forming wire mesh to assist deposition, which was set to 30 inches of water. [0088] 为了证明共成形纤网的回弹性质,对每个实施例的样品进行“揉皱”测试。 [0088] To demonstrate the resilient nature of the coform web, a "crumpled" test sample for each example. 每种样品为三英寸乘七英寸。 Each sample is three inches by seven inches. 对干燥和湿润的样品进行测试。 Dry and wet samples were tested. 湿润样品具有加入该样品中的3x其重量的水。 It was added to wet the sample with the sample 3x its weight in water. 通过在测试者手中轻轻做成团状来挤压每种样品,并保持10秒。 To squeeze each sample tested by the hands of the slug is made gently, and held for 10 seconds. 然后释放样品,轻轻抖开并铺在板上,之后不以任何方式使样品平展。 Then release the sample, gently fluffed and spread on the plate, not in any way after the sample flat. 图4显示揉皱前的实施例I的样品照片。 Figure 4 shows a sample embodiment of photographs before the I crumpled. 图5显示完成揉皱测试后的实施例I的样品照片。 Figure 5 shows the complete picture sample embodiment crumpled after the test I. 图6显示揉皱前的实施例3的样品照片。 6 shows a photograph of a sample in Example 3 is crumpled before. 图7显示完成揉皱测试后的实施例3的样品照片。 Figure 7 shows the photograph of a sample having crumpled after test Example 3. 从图4-7可看出实施例3的样品的回弾性更强,即在揉皱测试后展开的比实施例I的样品更平坦。 As can be seen from FIGS. 4-7 Press Dan stronger sample of Example 3, Example I flatter i.e. samples after the test expand ratio crumpled embodiment. 同样发现实施例2的样品与实施例3的样品具有相似的表现。 Also found in the sample of Example 2 and the sample of Example 3 has a similar performance.

[0089] 在本发明的另ー个方面中,吸收性复合材料84的其中ー层可包括气流法材料。 [0089] ー In another aspect of the present invention, wherein the absorbent composite layer 84 may comprise ー airlaid material. 气流法材料,如果在保留层94中,那么也可包括用于共成形层的上述种类的超吸收性材料,其包括超吸收性聚合物颗粒或超吸收性聚合物纤维。 Airlaid material, if the retention layer 94, the kind described above may also include a coform layer of superabsorbent material, comprising superabsorbent polymer particles or superabsorbent polymer fibers. 在任意层的气流法材料也可包括用于共成形层的上述种类的绒毛衆纤维。 In the airlaid material layer can also include any of the above for all kind of fluff fiber layer coform. 市售气流法材料包括购自Concert Gatineau ofGatineau,Quebec,Canada的气流法材料。 Commercially available materials include those available from airlaid Concert Gatineau ofGatineau, Quebec, Canada's airlaid material. 气流法材料是绒毛衆和粘合纤维的组合,对其进行加热将粘合纤维熔化成绒毛浆以产生稳定结构。 Airlaid fluff material is a combination of binder fiber and the public, it is heated to melted binder fiber fluff pulp to produce a stable structure. [0090] 气流法材料可由第一组纤维、优选地以第二组纤维的形式存在的粘合剂的共混物构成,并还可包括超吸收性材料。 [0090] airlaid material by the first set of fibers, preferably in the form of a blend of a second group of fibers constituting the adhesive, and may also include superabsorbent material. 对组合进行固化以形成稳定的气流法吸收结构。 Airlaid combination to form a stable cured absorbent structure. 在该方面中的气流法材料可具有预定的约50gsm至约600gsm的基重。 Airlaid materials in this aspect may have a predetermined basis weight of from about 50gsm to about 600gsm. 优选地,气流法材料的基重为约IOOgsm至约400gsm。 Preferably, the basis weight of the airlaid material is from about IOOgsm to about 400gsm. 最优选地,气流法材料的基重为约200gsm。 Most preferably, the basis weight of the airlaid material is about 200gsm. 第一组纤维可为纤维素纤维如绒毛浆纤维,其长度较短,具有较高的旦尼尔值,并且为亲水性的。 The first group of fibers may be cellulosic fibers such as fluff pulp fibers having a length shorter, with high denier, and are hydrophilic. 第一组纤维可由100%的软木纤维构成。 The first group of fibers may be 100% of softwood fibers. 优选地,第一组纤维为南方松木牛皮纸浆纤维,其长度为约2. 5mm,旦尼尔值大于2. O。 Preferably, the first set of fibers is southern pine Kraft pulp fibers having a length of about 2. 5mm, denier is greater than 2. O. 可通过在Kajanni分析仪上进行粗糙度测试来测定纤维素纤维的旦尼尔值以获得粗糙度值,単位为毫克每100米(mg/100m)。 Can be tested on Kajanni roughness analyzer measured denier cellulose fibers to obtain a roughness value. Unit milligrams per 100 meters (mg / 100m). 然后以粗糙度值除以常数值11. I以获得普通织物旦尼尔值,单位为克每9000米(g/9000m)。 Then roughness values ​​divided by the constant value to obtain a general fabric 11. I denier in grams per 9000 meters (g / 9000m). 用于第一组纤维的合适材料包括购自Weyerhaeuser Company of Federal Way, Washington 的Weyerhaeuser NB 416 y%.纤维和CF 405部分处理的绒毛衆纤维,和购自Georgia Pacific of Atlanta, Georgia的Golden Isles 4881和4825绒毛浆纤维,但可使用任何合适的绒毛浆纤维。 Suitable materials for the first group of fibers include those available from Weyerhaeuser Company of Federal Way, Washington is Weyerhaeuser NB 416 y%. Fluff fibers and minority fibers partially treated CF 405, and available from Georgia Pacific of Atlanta, Georgia's Golden Isles 4881 4825 and fluff pulp fibers, but any suitable fluff pulp fibers.

[0091] 保留层的粘合剂部分可为化学涂层。 [0091] The pressure-sensitive adhesive layer may be partially retained chemical coating. 优选地,保留层的粘合剂部分可包括第ニ组纤維。 Preferably, the adhesive layer may comprise part of the reservation of the group Ni fibers. 第二组纤维可为合成性粘合纤维。 The second group of fibers may be synthetic binder fibers. 合成性粘合纤维可购自几个供应商,包括Fibervisions Incorporated ot Athens, Georgia 和Fibervisions a/sof Varae,Denmark。 Synthetic bonding fibers commercially available from several vendors, including Fibervisions Incorporated ot Athens, Georgia and Fibervisions a / sof Varae, Denmark. 其它粘合纤维的供应商为Huvis Corporation of SouthKorea 和Far EasternTextile Company Ltd. of Taiwan。 Other binder fibers suppliers Huvis Corporation of SouthKorea and Far EasternTextile Company Ltd. of Taiwan. 优选地,第二组纤维为双组分纤维,其具有由聚こ烯鞘包围的聚酯芯。 Preferably, the second set of fibers are bicomponent fibers having a polyester core surrounded by a polyethylene sheath ko-ene. 供选择地,第二组纤维可为双组分纤维,其具有由聚こ烯鞘包围的聚丙烯芯。 Alternatively, the second group of fibers may be a bicomponent fiber having a polypropylene core surrounded by a polyethylene sheath ko-ene. 在供选择的方面中,可使用由不同类型的这些合成性粘合纤维制成的气流法材料。 In the alternative, the airlaid material may be used by different types of synthetic bonding fibers.

[0092] 构成第二组纤维的纤维通常长度较长,并且旦尼尔值比构成第一组纤维的纤维小。 [0092] The fibers constituting the second group of fibers is usually longer length and smaller denier than the first group of fibers constituting the fiber. 第二组纤维的纤维长度可为约3mm至约6mm。 Fiber length of the second group of fibers may be from about 3mm to about 6mm. 3mm的纤维长度性能较好。 Better performance fiber length of 3mm. 第二组纤维的纤维的旦尼尔值小于或等于2. O。 Fiber denier second group of fibers is less than or equal to 2. O. 第二组纤维应对水分不敏感,并可为卷曲或非卷曲的。 The second set of fibers does not deal with the moisture sensitive, and may be crimped or non-crimped. 优选卷曲纤维,因为其更易于加工。 Preferably crimped fibers, because it is easier to process.

[0093] 气流法材料也可含有超吸收性材料。 [0093] The airlaid material may also contain superabsorbent material. 超吸收性材料为每克超吸收性材料能够吸收至少10克水的材料。 Per gram of the superabsorbent material is a superabsorbent material is capable of absorbing at least 10 grams of aqueous material. 超吸收性材料优选为小颗粒的形状,但也可使用纤维、薄片或其它形式的超吸收性材料。 Superabsorbent material is preferably in the shape of small particles, but can also be used fibers, flakes or other forms of the superabsorbent material. 合适的超吸收性材料为购自EVONIK Stockhausen, Inc. ofGreensboro, North Carolina的FAVOR SXM 9500超吸收性材料。 Suitable superabsorbent materials are available from FAVOR SXM 9500 superabsorbent material EVONIK Stockhausen, Inc. ofGreensboro, North Carolina's. 也可使用其它相似类型的超吸收性材料,其中一些购自BASF of Charlotte, North Carolina,如HYSORB 8760超吸收性材料。 May also be used other similar types of superabsorbents, some of which are commercially available from BASF of Charlotte, North Carolina, as HYSORB 8760 superabsorbent material. 优选地,超吸收性材料以重量百分比为约5%至约60%的量存在。 Preferably, the superabsorbent material in an amount of from about 5 weight percent to about 60 percent.

[0094] 气流法材料中所存在的单个组分的量可不相同。 [0094] The amount of the individual components present in the airlaid material may not be the same. 此外,组分可均匀或不均匀地分布在气流法材料中。 Further, the components may be uniformly or non-uniformly distributed in the air-laid material. 然而已发现以下百分比可很好地用于形成较薄的吸收性制品。 However, the following has been found that the percentage may be suitably used for forming the thin absorbent article. 第一组纤维按重量计可占气流法材料的约30%至约85%。 By weight of the first group of fibers can comprise from about 30% to about 85% of the airlaid material. 第二组纤维按重量计可占气流法材料的约5%至20%。 By weight of the second group of fibers may comprise from about 5-20% of the airlaid material. 超吸收性材料按重量计可占气流法材料的约5%至约60%。 By weight of the superabsorbent material may comprise from about 5% to about 60% of the airlaid material. 已发现以约77%的第一组纤维,约8%的第二组纤维,和约15%的超吸收性材料形成气流法材料可以很好地用于吸收和保留尿液和月经。 It has been found in about 77% of the first set of fibers, about 8% of the second set of fibers, and about 15% of superabsorbent material forming airlaid material works well for absorbing and retaining urine and menses.

[0095] 第一组纤维能够以按重量计高于第二组纤维的百分比存在于气流法材料中。 [0095] The first group of fibers can be higher than the percentage by weight of the second group of fibers present in the airlaid material. 通过使用较高百分比的第一组纤维可降低气流法材料的总成本。 A first set of fibers by using a higher percentage of the total cost can be reduced airlaid material. 第一组纤维也可以确保吸收性制品具有足够的流体吸收能力。 The first group of fibers can also ensure that the absorbent article has sufficient fluid absorbing capacity. 纤维素纤维如绒毛浆纤维通常比合成粘合纤维便宜。 Cellulosic fibers such as fluff pulp fibers are generally less expensive than synthetic binder fibers. 为了获得良好的性能,第二组纤维可组成按重量计至少约5%的气流法材料,以确保气流法材料具有足够的拉伸強度。 To obtain good performance, the second group of fibers can be airlaid material consisting by weight of at least about 5%, to ensure that the airlaid material has sufficient tensile strength. 如上所述,气流法材料应为组分的混合物。 As described above, the components of the mixture should be airlaid material.

[0096] 在本发明的ー个方面中,在约165摄氏度的温度下加热固化约8秒至约10秒的时间后,在基本干燥的条件下将气流法材料挤压至密度为每立方厘米约0. 05克g/cm3至约0. 3g/cm3。 After [0096] In ー aspect of the present invention, heating at a temperature of about 165 degrees Celsius cured from about 8 seconds to about 10 seconds, under substantially dry conditions airlaid material is pressed to a density per cubic centimeter about 0.05 g g / cm3 to about 0. 3g / cm3. 优选地,在基本干燥的条件下将气流法材料挤压至密度为约0. O7g/cm3至约0. 22g/cm3。 Preferably, under substantially dry conditions airlaid material will be pressed to a density of about 0. O7g / cm3 to about 0. 22g / cm3. 最优选地,在基本干燥的条件下将气流法材料挤压至密度为约0. 12 (g/cm3)。 Most preferably, under substantially dry conditions airlaid material will be pressed to a density of about 0. 12 (g / cm3). 这种对气流法材料的挤压有助于形成薄的吸收性制品。 This compression of the airlaid material contributes to the formation of thin absorbent articles.

[0097] 当用于吸入层时,气流法材料通常不包括超吸收性材料,并且密度为0. 05g/cm3至0. 15g/cm3。 [0097] When the layer for inhalation, airlaid material typically does not include superabsorbent material, and a density of 0. 05g / cm3 to 0. 15g / cm3. 用于保留层的气流法材料通常包括超吸收性材料,并且密度为0. lg/cm3至约0. 3g/cm3。 Airlaid material for the retaining layer typically comprises a superabsorbent material, and a density of 0. lg / cm3 to about 0. 3g / cm3.

[0098] 应注意的是,组成气流法材料的稳定材料应在机器方向上具有足够的拉伸强度以将其缠绕在卷轴上,之后可将其展开并在转换设备上进行处理。 [0098] It should be noted that the material composition stabilized airlaid material should have sufficient tensile strength in the machine direction so as to be wound on a reel, then it may be unrolled and processed on converting equipment. 通过改变粘合纤维的含量,调整固化条件,改变纤维挤压的比重,以及本领域技术人员已知的其它方式,可获得足够的拉伸强度。 By changing the content of the binder fiber, adjusting the curing conditions, changing the specific gravity of the extruded fibers, and other means known to the skilled person, to obtain a sufficient tensile strength. 已发现,气流法材料的拉伸强度至少应为12牛顿每50mm (N/50mm)。 It has been found, a tensile strength of at least airlaid material should be 12 Newtons per 50mm (N / 50mm). 优选地,气流法材料的拉伸强度至少应为18N/50mm。 Preferably, the tensile strength of the airlaid material should be at least 18N / 50mm. 更优选地,气流法材料的所需拉伸強度至少应为25N/50mm。 More preferably, the tensile strength required airlaid should be at least 25N / 50mm. 可使用测试仪测试材料的拉伸强度,如购自MTS Systems Corporation ofResearch Triangle Park, North Carolina 的Model MTS/Sintechl/S 测试仪。 Tester using the tensile strength, as available from MTS Systems Corporation ofResearch Triangle Park, North Carolina's Model MTS / Sintechl / S tester. 出于本发明目的,通过将稳定材料的50_条带固定在拉伸测试仪的两个可移动的卡爪之间来测量在峰值负荷的拉伸强度。 For purposes of the present invention, the stabilized material 50_ strip fixed between two movable jaws of a tensile tester to measure the tensile strength at peak load. 最初两卡爪分离约IOcm的距离。 Initially two jaw separation distance of about IOcm. 然后以25cm/分钟的速率将两卡爪向彼此远离的外侧移动直到材料条带断裂。 At a rate of 25cm / minute to two outer jaws to move away from each other until the strip of material breaks. 将拉伸強度记录为峰值负荷。 The peak load was recorded as the tensile strength.

[0099] 在本发明的另ー个方面中,保留层94可包括高密度氢键合绒毛/超吸收性聚合物材料,如购自EAM Corporation of Jesup, Georgia的N0VATHIN吸收芯。 [0099] ー In another aspect of the present invention, retaining layer 94 may include a high-density hydrogen bonding fluff / superabsorbent polymer material, such as commercially available from EAM Corporation of Jesup, N0VATHIN Georgia of the absorbent core. 这些材料包括绒毛浆和超吸收性材料的混合物,该混合物在两层纸巾或其它无纺纤材料之间形成并致密化以在纸巾套之间形成高密度复合材料。 The material comprises a mixture of fluff pulp and superabsorbent material, the mixture is formed between two layers of nonwoven tissue or other material and is densified to between towel sets a high density composite material. 特别合适的超吸收性聚合物为HYSORB 8760超吸收性材料(BASF of Charlotte,North Carolina)和FAVOR SXM 950 超吸收性材料(购自EVONIKStockhausen ofGreensboro,North Carolina)。 Particularly suitable superabsorbent polymer (of Charlotte, North Carolina BASF) and FAVOR SXM 950 superabsorbent material (available from EVONIKStockhausen ofGreensboro, North Carolina) to HYSORB 8760 superabsorbent material. 组合物通常不包括化学粘合剂。 Chemical compositions typically do not include a binder. 组合还可包括合成性粘合纤维。 Binder composition may further comprise synthetic fibers.

[0100] 基本重量可为80至800gsm。 [0100] The basic weight of 80 to 800gsm. 密度可为O. I至O. 45g/cc。 Density may be O. I to O. 45g / cc. 颗粒物含量可为0_70%。 Particle content may be 0_70%. 作为致密化过程的一部分,可在组合物上压印不同图案,包括平滑、圆形、或定制的粘合花纹。 As part of the densification process, different patterns can be embossed on the composition, comprising a smooth, round, or custom bond pattern.

[0101] 氢键合过程消除了用于稳定网的合成纤维和/或乳胶与烤箱的组合使用。 [0101] eliminating the hydrogen bonding process for stabilizing compositions web of synthetic fibers and / or latex with oven usage. 替代地,其依赖于在压延步骤中用于引发氢键合的温度和压カ的组合,从而使网稳定。 Alternatively, it depends on the rolling step hydrogen bonding temperature and pressure combinations for initiation ka, such that the web is stable. 该技术的主要优势为避免了昂贵单元操作而简化了生产过程。 The main advantage of this technique is to avoid expensive unit operations simplifies the production process. 其它优势包括由于不含影响吸收性的材料如合成纤维和粘合剂而使颗粒物如超吸收性材料的容量更大,吸收效率更高。 Other advantages include the influence of the absorbent material does not contain synthetic fibers, such as particulate matter such as the binder and larger capacity of the superabsorbent material, higher absorption efficiency.

[0102] 在本发明的又ー个方面中,ー层或多层可包括射流喷网材料。 [0102] In yet another aspect of the present invention ー in ー layer or layers may comprise spunlace material. 射流喷网材料包括将熔喷纤维用作结构的一部分(例如,层压物)。 Spunlace material comprises meltblown fibers as part of the structure (e.g., laminate). 对材料施加水力缠结以促进各种纤维和/或细丝的缠结。 It is applied to the hydroentangled material to promote various fibers and / or filaments entangled. 这导致更高程度的缠结并允许在层压物中使用各种其它纤维材料。 This results in a higher degree of entanglement and allows the use of various other fibrous materials in the laminate. 此外,使用熔喷纤维可降低水力缠结层压物所需的能量的量。 Further, the amount of energy needed to hydraulically entangled laminate of meltblown fibers used can be reduced. 在射流喷网或水力缠结粘合技术中,通常将足够数量的具有松散端部(例如,短纤维和木纤维)、较小直径和较高纤维流动性的纤维纳入纤维网中以包裹和缠结在纤维细丝、泡沫、网等交叉点周围。 In the spunlaced or hydroentangling bonding techniques, typically having a sufficient number of loose ends (e.g., staple fibers and wood fibers), small diameters and high fiber mobility of the fiber into the fiber web to wrap and entangled fiber filament, foam, net around the intersection point. 如果没有这样的纤维,网的粘合性会较差。 Without such fibers, bonding of the web may be poor. 认为无松散端部并且流动性较小的连续的大直径细丝是用于缠结的较差纤維。 That no loose ends and less mobile large diameter continuous filaments are entangled for poor fiber. 然而,发现熔喷纤维可有效包裹并缠结或缠绕。 However, meltblown fibers may be found to effectively wrapped and entangled or twisted. 这是由于纤维具有较小的直径和较高的表面积,以及当喷射机传送足够高的能量流时,纤维断裂、运动并缠结其它纤维这一事实。 This is because fibers having a small diameter and high surface area, and when the jet stream transmitted a high enough energy, fiber breakage, motion and the fact that the other fibers entangled. 不论熔喷纤维是否为上述层状形式或混合形式,均会发生该现象。 Regardless of whether meltblown fibers are in the form of the layered or mixed form, which phenomenon occurs both.

[0103] 熔喷纤维(例如,微纤维)的使用提供改善的产品,因为在层压物中的熔喷纤維和其它材料例如纤维材料的缠结得到改善。 [0103] meltblown fibers (e.g., microfibers) provides an improved product for use as laminates of meltblown fibers and other materials such as the entangled fiber material is improved. 因此,由于熔喷纤维具有相对大的长度和相对小的厚度,在层压物中熔喷纤维围绕其它材料的缠结得到提高。 Accordingly, since the meltblown fibers have a relatively great length and relatively small thickness of the meltblown fibers around the other material in the laminate was entangled improved. 此外,熔喷纤维具有相对高的表面积、较小的直径,并且彼此间相隔足够的距离以允许在层压物中的其它纤维材料自由移动并缠绕在熔喷纤维上和内部。 Moreover, the meltblown fibers have a relatively high surface area, small diameter and spaced from each other a sufficient distance to allow other fibrous material in the laminate was wound and moved freely on the inside and meltblown fibers. 此外,由于熔喷纤维数量众多并具有相对高的表面积、小的直径、并且几乎连续,该纤维可极好地将松散纤维(例如,木纤维和短纤维)与自身粘合。 Further, since numerous meltblown fibers and has a relatively high surface area, small diameter, and almost continuously, the fibers can be excellently loose fibers (e.g., wood fibers and staple fibers) with self-adhesive. 将该纤维固定或层压至熔喷纤维上需要相对低的能量的缠结能量。 The fibers secured or laminated to a relatively low energy on the entanglement energy meltblown fibers.

[0104] 使用水力缠结技术包括其它机械缠结技术而不是仅使用其它粘合技术来对纤维材料进行机械缠结(例如,机械粘合),可提供強度、完整性和手感和悬垂性提高的复合无纺纤维纤网材料,并允许更好地控制其它产品的属性,如吸收性、湿強度等。 [0104] Hydraulic entangling techniques include the use of other mechanical entangling techniques, rather than using only other bonding techniques to mechanically entangle (e.g., mechanical bonding) of fiber material can provide strength, integrity and hand and drape improved the composite nonwoven fibrous web material, and allows better control of other product attributes, such as absorbency, wet strength and the like.

[0105]射流喷网布的ー个实例为 OPTIMAL GSM 30-250100%Rayon 布,购自BaiksanLmtex しο.,Ltd. of Siheung-City, South Korea。 [0105] spunlaced fabric ー instance is OPTIMAL GSM 30-250100% Rayon cloth, available from BaiksanLmtex shi ο., Ltd. Of Siheung-City, South Korea.

[0106] 射流喷网布通常是指受到水力缠结处理的材料。 [0106] spunlaced fabric generally refers to a material subjected to hydroentangling processing. 虽然射流喷网布相对廉价、可透气、并且能够变形,通常认为变形是永久性的并可描述为不可恢复的拉伸。 Although spunlace fabric is relatively inexpensive, breathable and can be deformed, the deformation is generally considered to be permanent and can be described as non-recoverable stretch. 早已知道直径非常小的纤维或微纤维的无纺纤网可透过空气和水蒸气,同时保持对液体和/或颗粒的相对不可滲透性。 Already know of very small diameter fibers or microfibers of the nonwoven web may be permeable to air and water vapor, while maintaining the relative impermeability to liquids and / or particles. 可利用纤维成形エ艺例如熔喷エ艺,通过挤出非弾性体热塑性聚合物来制备小直径纤维的有用纤网。 Ester fiber forming arts may be utilized, for example, meltblowing arts Ester, prepared Useful webs of small diameter fibers by extrusion of a thermoplastic polymer non Dan. 虽然由非弾性体聚合物形成的熔喷纤维的无纺纤网相对低廉并可透气,但高度缠结的纤网往往对拉伸力响应较差。 Although meltblown fibers formed from non Tan nonwoven web of polymer is relatively inexpensive and breathable, but highly entangled webs tend to respond poorly to stretching forces. 通常认为在该材料中发生的延伸为永久性的、不可恢复的延伸(即,不可恢复的拉伸)。 That extends generally occurs in the material is permanent, unrecoverable extension (i.e., non-recoverable stretch). 例如,通常认为由传统热塑性聚丙烯制备的无纺纤网具有不可恢复的拉伸。 For example, the nonwoven web is generally considered to be prepared from conventional thermoplastic polypropylene having a tensile unrecoverable.

[0107] 在本发明的再ー个方面中,吸收性复合材料84的ー层或多层可包括泡沫材料如购自The Dow Chemical Company of Midland, Michigan 的材料。 [0107] In yet ー aspect of the present invention, the absorbent composite ー or more layers 84 may comprise a foam material such as those available from Dow Chemical Company of material of The of Midland, Michigan. Mork 等人的第6, 627, 670B2号美国专利、Bland等人的第6,071,580号美国专利、Strandburg等人的第7,439,276B2 号美国专利、和Vansumeren 等人的第W02008/036942A2 号PCT 公开、Kim等人的第W02007/011728A2 号PCT 公开、Menning 的第W02008/052122A1 号PCT 公开、和Stockton等人的第W02008/100842A1号PCT公开描述了代表性的吸收性泡沫材料,将其全部内容以引入本文作为參考,以其不互相抵触为限。 Mork et al. 6, 627, U.S. Pat. No. 670B2, the Bland et al., U.S. Pat first, et al Strandburg is No. 7,439,276B2 U.S. Pat. No. 6,071,580, and No. Vansumeren et al W02008 / 036942A2 PCT Publication , Kim et al of W02007 / 011728A2 PCT Publication No., Menning of W02008 / 052122A1 PCT Publication No., et al., and Stockton of W02008 / 100842A1 PCT Publication No. describes a representative absorbent foam materials, the entire contents of which incorporated herein by reference in its conflicting not limited thereto.

[0108] 这样的吸收性聚合物泡沫材料具有互连开放泡孔的亲水的、柔软的聚合物泡沫结构。 [0108] Such an absorbent polymeric foam material having interconnected open celled hydrophilic, flexible polymeric foam structure. 可用于定义优选的聚合物泡沫的特征为泡孔(cell)结构。 Feature can be used to define the preferred polymeric foams is the cell (cell) structure. 泡孔,尤其是通过包围相对无单体的水相液滴的含有単体的油相聚合来形成的泡孔的形状通常基本上为球形。 Cells, in particular oil-containing radiolabeling body surrounds relatively monomer-free by aqueous phase polymerization phase droplets formed in the shape of cells is typically substantially spherical. 这些球形泡孔通过开ロ彼此相连,以下将所述开ロ称为泡孔之间的孔。 These spherical cells are connected to each other by opening and ro, ro hereinafter referred to as the open aperture between cells. 该球形泡孔的大小或“直径”和泡孔间的开ロ(孔)的直径通常用于表征泡沫。 The size of the spherical cells or between the open ro "diameter" and a cell (pore) diameter is typically used to characterize the foam. 由于在给定的聚合物泡沫样品中的泡孔和泡孔间的孔未必为大致相同的尺寸,因此通常指定平均泡孔和孔径(即,平均泡孔和孔直径)。 Since the pores between the cells in a given sample of polymeric foam cells and are not necessarily substantially the same size, it is often specified average cell and pore size (i.e., average cell and hole diameters).

[0109] 泡孔和孔径为能够影响泡沫的许多重要机械和性能特征的參数,包括这些泡沫的流体芯吸性能,以及在泡沫结构内部形成的毛细管压力。 [0109] pore diameter of the cell and a number of important mechanical and performance characteristics of the parameters can affect the foam, these include the fluid absorption properties of the foam core, and the capillary pressure within the foam structure formed. 许多技术可用于确定泡沫的平均泡孔和孔径。 Many techniques can be used to determine average cell foam and pore size. 最有用的技术涉及基于泡沫样品的扫描电子显微照片的简单测量。 The most useful technique involves a simple measurement based on the scanning electron micrographs of foam sample. 泡沫可用作水性流体的吸收剂,平均泡孔径优选为约20至约200 μ m,更优选为约30至约190 μ m,最优选为约80至约180 μ m ;数均孔径为约5至约45 μ m,优选为约8至约40 μ m,最优选为约20 至约35 μ m。 The aqueous fluid foams useful as absorbents, the average bubble diameter is preferably from about 20 to about 200 μ m, more preferably from about 30 to about 190 μ m, and most preferably from about 80 to about 180 μ m; the number-average pore size of about about 5 to 45 μ m, preferably from about 8 to about 40 μ m, and most preferably from about 20 to about 35 μ m.

[0110] 例如,Bland等人的第6,071,580号美国专利描述了吸收性的、挤出的、开放泡孔热塑性泡沫。 [0110] For example, No. Bland et al U.S. Patent No. 6,071,580 describes absorbent, extruded, open cell thermoplastic foam. 泡沫的开放泡孔含量约为50%或更高,平均泡孔径高达约I. 5毫米。 Open cell content of the foam is about 50% or more, an average pore diameter of up to about bubble I. 5 mm. 当吸收液体时,泡沫能够吸收其理论容量的50%或更多的液体。 When the absorption liquid, the foam is capable of absorbing 50% of its theoretical capacity of more or liquid. 泡沫的平均等效孔径优选地为约5微米或更大。 A mean equivalent pore diameter of the foam preferably about 5 microns or greater. 泡沫优选地基本上具有泡孔壁和泡孔支柱结构。 Preferably the foam cell walls and having a substantially cell strut structure. 也描述了采用通过延伸挤出模具的挤出物产生的泡沫来吸收液体的方法,和通过将表面活性剂应用于泡沫的暴露表面而提高开放泡孔泡沫吸收性的方法,使表面活性剂保留在表面,不会浸渗相当的距离而进入泡沫中。 Also describes a process using an extrusion die extends through the foam extrudate generated by the absorption liquid, and the method is applied to the foam surfactant to improve the exposed surface of the open cells of the foam absorbent, a surfactant reserved in a considerable distance from the surface, is not impregnated into the foam.

[0111] 合适的泡沫材料也可包括各种类型的泡沫,包括但不限于热塑性泡沫、高内相乳液(HIPE)泡沫和反向高内相乳液(I-HIPE)泡沫,和其它合适的聚合物泡沫,包括但不限于Ko等人的第7,053, 131号美国专利、Krueger等人的第7,358,282号美国专利、和DesMarais等人的第5,692,939号美国专利、和Radwanski等人的第US2006/0148917号美国专利申请公开所公开的聚合物泡沫,将其全部内容引入本文作为參考,以其不互相抵触为限。 [0111] Suitable foam materials may also include various types of foams, including but not limited to thermoplastic foams, high internal phase emulsion (the HIPE) foams and high internal phase inverse emulsion (I-HIPE) foams, and other suitable polymeric foam material, including but not limited to the first 7,053 Ko et al., U.S. Pat. No. 131, to Krueger et al., U.S. Patent No. 7,358,282, and DesMarais et al U.S. Pat. No. 5,692,939, Radwanski et al., and U.S. Patent US2006 / application Publication No. 0148917 disclosed a polymer foam, incorporated in its entirety herein by reference in its conflicting not limited thereto. 一种合适泡沫材料的实例为具有负泊松比的聚氨酯泡沫。 Examples of a suitable foam material having a negative Poisson's ratio of the polyurethane foam. 通常在传统卫生巾中用作底片的材料也是合适的。 Suitable materials usually used in conventional sanitary napkin backsheet. Osborn,III等人的第5,611,790号美国专利描述了可延长的底片材料的实例,将其全部内容引入本文作为參考,以其不互相抵触为限。 No. Osborn, III et al., U.S. Patent No. 5,611,790 describes an example extensible backsheet material, incorporated in its entirety herein by reference, without conflicting with its limited thereto. Zhang等人的第US2006/0246272号美国专利申请公开中描述了合适的吸收性泡沫材料的其它实例,将其全部内容引入本文作为參考,以其不互相抵触为限。 Zhang et al of US2006 / 0246272 U.S. Patent Application Publication No. described in the other examples of suitable absorbent foam material, incorporated in its entirety herein by reference, without conflicting with its limited thereto.

[0112] 在本发明的另ー个方面,保留层94可包括超吸收性聚合物/粘性复合材料,包括可伸展的超吸收性聚合物/粘性复合材料。 [0112] In another aspect of the present invention ー retention layer 94 may comprise superabsorbent polymer / viscosity composites comprising superabsorbent polymer extendible / tacky composite material. Tanzer等人的第5,411,497号美国专利、Tanzer等人的第5,433,715号美国专利,和Schewe等人的第7,247,215号美国专利、和Nhan等人的第2005/0096623A1号美国专利申请公开描述了这样的复合材料,将其全部内容引入本文作为參考,以其不互相抵触为限。 Tanzer, et al., US Patent No. 5,411,497, Tanzer, et al., US Patent No. 5,433,715, and Schewe et al., US Patent No. 7,247,215, and No. 2005 Nhan et al. / U.S. Patent application Publication No. 0096623A1 describes such a composite material, incorporated in its entirety herein by reference, without conflicting with its limited thereto.

[0113] 在本发明的又ー个方面中,吸收性复合材料84的ー层或多层可包括粘合梳理纤网(BCff), Latimer等人的第5,364,382号美国专利,Latimer等人的第5,429,629号美国专利,和Bishop等人的第5,486,166号美国专利,将其全部内容引入本文作为參考,以其不互相抵触为限。 [0113] In the present invention, in a further aspect ー, ー absorbent composite layer or layers 84 may include a bonded carded web (BCff), Latimer et al., U.S. Pat. No. 5,364,382, Latimer No. 5,429,629 et al., U.S. Patent, and Bishop et al., U.S. Pat. No. 5,486,166, incorporated herein in its entirety by reference, conflicting with its not limited thereto. BCW材料的一般基本重量包括30-300gsm的基本重量。 BCW materials generally include a basis weight 30-300gsm the basis weight. 这些专利描述了BCff浪涌技术和BCW浪涌材料的制备方法。 These patents describe the preparation and techniques BCff surge BCW surge material.

[0114] 在本发明的另ー个方面中,吸收性复合材料84的ー层或多层可包括熔喷微纤维材料。 [0114] ー In another aspect of the present invention, the absorbent composite 84 ー layer or layers may comprise meltblown microfiber material. 这样的熔喷微纤维材料的ー个实例为50gsm熔喷条白色亲水熔喷纤维材料,购自Yuhan-Kimberly Kimcheon Nonwoven Mill of KimCheon City,KyungSangBuk—Do,Korea。 Such melt-blown microfiber material is 50gsm meltblown ー instance white strip of hydrophilic meltblown fiber material, available from Yuhan-Kimberly Kimcheon Nonwoven Mill of KimCheon City, KyungSangBuk-Do, Korea. 该材料的聚丙烯纤维直径为1-5微米,复合材料密度为O. 124-0. 218g/cc,孔径为15-18微米(最大21-30微米),还可包括可润湿的表面活性剂如购自Cytec Industries Inc. ofWest Paterson, New Jersey 的AEROSOL GPG 表面活性剂。 The polypropylene fiber material having a diameter of 1-5 microns, the composite density O. 124-0. 218g / cc, a pore size of 15-18 microns (21-30 microns maximum), further comprising a surfactant wettable such as commercially available from Cytec Industries Inc. ofWest Paterson, New Jersey the surfactant AEROSOL GPG. [0115] 用于吸收血液,和基于血液的流体的高吸收性制品如月经垫(例如,卫生巾)、卫生棉条、伤ロ敷料、绷带和手术帘的开发是具有挑战性的。 [0115] for absorbing blood and blood-based fluids such as highly absorbent article catamenial pads (e.g., sanitary napkins), tampons, wound dressings ro development, bandages and surgical drapes can be challenging to. 与水和尿液相比,血液和基于血液的流体如月经为相对复杂的混合物,具有溶解和未溶解成分(例如,红血球或血红细胞)。 Compared to water and urine, blood and blood based fluids such as menses are relatively complex mixtures, having dissolved and undissolved components (e.g., erythrocytes or red blood cells). 特别地,基于血液的流体如月经比水和尿液粘度更大。 In particular, blood-based fluids such as menses and urine viscosity greater than water. 该更高的粘度妨碍传统吸收性材料有效并快速地将这些基于血液的流体运输至远离初始流出点的区域的能力。 The higher viscosities obstruct conventional absorbent materials to efficiently and rapidly based on the ability of these fluid transported to the blood flowing away from the initial point of the region. 这些基于血液的流体中未溶解的元素也可能堵塞这些吸收性材料的毛细管。 These blood-based fluids undissolved element may block the capillaries of these absorbent materials. 这使得用于吸收基于血液的流体如月经的吸收系统的设计尤为困难。 This makes the design for such systems absorb menses particularly difficult to absorb blood-based fluids.

[0116] 在月经垫的情况中,女性期望在舒适和贴合、流体的保留、和最低限度的沾污方面具有高水平的性能。 [0116] In the case of sanitary pads, women expect in comfort and fit, retention of fluid, and minimal staining aspects of a high level of performance. 总之,认为流体从垫渗漏到内衣上是不可接受的。 In short, that the leakage of fluid from the pad onto undergarments is not acceptable. 虽然对月经垫结构和用于该结构的材料进行了许多改进,但提高该月经垫的性能仍然是一项艰巨的事业。 Although the structure of the material menstrual pad structure for a number of improvements, but to improve the performance of the menstrual pad remains a daunting undertaking. 然而消除渗漏,特别是沿着大腿内侧的渗漏,同时不降低贴合和舒适感,也并不总能满足消费者渴望的需求。 However eliminate leakage, especially leakage along the inner thigh, while not reducing the fit and comfort, it does not always meet the needs of consumers desire.

[0117] 目前月经垫(例如卫生巾)的吸收结构通常包括一个或多个纤维层以从可渗透顶片中收集排出的流体并将其分布于下层的储存区域。 [0117] It catamenial pads (e.g., sanitary napkin) of the absorbent structure usually comprises one or more fiber layers in a fluid discharged from the permeable topsheet collected and distributed in the storage area of ​​the lower layer. 用于现有月经产品的相对薄版本的吸收结构通常包括与可渗透顶片相邻的流体收集或吸入层。 For relatively thin versions of prior catamenial products usually comprise absorbent structure permeable topsheet adjacent fluid collection or intake layer. 该吸入层通常由气流法织物纤网或合成性无纺物制成。 The suction layer is typically made of a fabric web or airlaid nonwoven synthetic. 该吸入层以下为主要吸收芯,该吸收芯通常由气流法或湿法织物制得。 The following is the main intake layer of the absorbent core, the absorbent core is typically made from air-laid or wet fabric is made.

[0118] 由纤维层制成的现有吸收月经吸收结构有许多问题。 [0118] menstrual absorbent prior absorbent structures made from fibrous layers have a number of problems. 其中ー个困难是确保顶片足够干燥。 Wherein ー difficulty is ensuring adequate topsheet dryness. 这样的结构造成内裤和身体污染的机会也更大。 The opportunity to create such a structure underwear and body contamination is greater. 这是由于吸收结构缺乏回弹性,导致垫的聚束。 This is because the absorbent structure lacks resilience, leading to bunching of the pad. 该回弹性的缺乏以及随之发生的聚束也可导致这些现有的月经垫提供使用者较差的合身和舒适感。 The lack of resilience, and consequent bunching can also cause these existing menstrual pads provide a poor user fit and comfort. Dyer的第5,849,805号美国专利中确认了传统的月经吸收结构和传统的吸收纤维纤网未解決该问题的议题。 Dyer's US Patent No. 5,849,805 to confirm the topic of menstruation to absorb the traditional structures and traditional absorbent fiber web does not resolve the problem.

[0119] 一种尝试性的解决方案用泡沫代替纤维吸入层和保留层,如购自The Procterand Gamble Company of Cincinnati, Ohio 的ALWAYS INFINITY 普通型垫中所使用的INFINICEL泡沫。 [0119] An attempted solution replaced by fibrous intake layer and the foam layer was retained, as available from The Procterand Gamble Company of Cincinnati, INFINICEL Ohio, foam pad ALWAYS INFINITY common type used. 这样的泡沫往往比纤维纤网更加昂贵。 Such foams tend to be more expensive than fibrous webs.

[0120] 共成形无纺纤网是熔喷纤维基体和吸收性材料(例如,绒毛浆纤维)的复合材料,在多种应用中用作吸收层,包括吸收性制品、吸收性干毛巾、湿毛巾和拖把。 [0120] coform nonwoven web is a matrix of meltblown fibers and absorbent material (e.g., fluff pulp fibers) composites as an absorbent layer in a variety of applications, including absorbent articles, an absorbent towel dry, wet towels and mops. 大多数传统共成形纤网采用由聚丙烯均聚物形成的熔喷纤維。 Most conventional coform web of melt-blown fibers formed by a polypropylene homopolymer. 然而,这样的共成形材料有时遇到的问题是当共成形材料受到弯曲力时无足够的回弾性。 However, problems such co-forming materials are sometimes encountered when co-formed material is subjected to bending forces without sufficient back of Dan. 例如,如图4和5所示,当共成形擦拭物被弄皱时,共成形材料无法恢复到其原始的平坦、无皱褶状态。 For example, as shown in FIG. 4 and 5, when coform wipe crumpled, coform materials can not be restored to its original flat, wrinkle-free state. 另ー个实例是在个人护理吸收产品中用作吸收芯的共成形材料有聚束的倾向。ー Another example is personal care absorbent products as the absorbent core material has a tendency to bunching coform.

[0121] 因此,本文所公开的改进的共成形无纺纤网可用于各种应用,并且显示对弯曲力的抵抗力的提高且在折叠后显示恢复平坦状态的倾向。 [0121] Accordingly, disclosed herein were improved nonwoven web tends to be used for various applications, and display improved resistance to bending force and restore the display state after folding flat molding. 如图6和7所示,这样的改进的共成形无纺纤网可与其它多种材料结合以产生用于个人护理吸收性制品的下一代吸收性复合材料。 As shown in FIG. 6 and 7, such an improved nonwoven web may be combined with other materials to produce a variety of composite materials for the next generation of the absorbent personal care absorbent article coform.

[0122] 本发明人在改善吸收性制品方面进行了深入细致的研发努力,并且已开发出用于吸收芯的吸收性复合材料,所述吸收芯具有足够的湿性和干性回弾力和足够的吸收性,不需主要使用昂贵的泡沫。 [0122] The present invention is an absorbent article in terms of improving the intensive development effort, have been developed and used in the absorbent composite absorbent core, said absorbent core having sufficient wet and dry strength and adequate back Tan the absorbent, without the use of expensive main foam. 本发明人也发现他们可通过将回弾性共成形材料与其它材料合并来调整这些特性,赋予其高的回弾性和吸收性能。 The present inventors have also found that they can be prepared by co-back of Tan combined with other materials, molding materials to adjust these properties, which impart a high absorption performance and Dan back.

[0123] 当消费者对以泡沫代替纤维纤网的商品进行测试时,納入了本文所述材料的产品产生了意想不到和令人惊讶的結果。 [0123] When a foam consumer goods instead of a fibrous web test, the material is incorporated into the product produced herein unexpected and surprising result. 将月经垫与纳入了INFINICEL HIPE泡沫的市售ALWAYSINFINITY普通型垫进行比较,所述月经垫包括215gsm 50%VISTAMAXX聚合物的回弹性共成形材料/50%绒毛浆共混物吸入层86与包括EAM 150gsm N0VATHIN高密度氢键合绒毛/超吸收性聚合物材料的保留层94结合,所述超吸收性聚合物材料包括25%的超吸收剂。 The catamenial pad INFINICEL HIPE foam with included ALWAYSINFINITY ordinary type commercially available pads were compared, the catamenial pad comprises resilient 215gsm 50% VISTAMAXX polymer material / 50% blend of fluff pulp intake layer 86 including coform EAM 150gsm N0VATHIN hydrogen bonding high density fluff / superabsorbent polymer material retaining layer 94 in combination, the superabsorbent polymer material comprises 25% superabsorbent. 尽管两种技术手段和成本不同,两种产品均获得了同等的总购买意向并且对舒适和吸收性的感受相同。 Although two different techniques and costs, both products have received the same total purchase intention and the same feelings of comfort and absorbency. 由于猜测更昂贵的INFINICEL泡沫带来的益处超出所测试的低成本的回弾性共成形/N0VATHIN材料組合,因此该结果是意想不到的。 Since the benefits of more expensive INFINICEL guess foam outweighs / N0VATHIN composition of the tested material Press Dan coform low cost, so this result it was unexpected. 以相同方式测试其它不包括回弾性共成形层或INFINICEL泡沫的市售产品,但未提供与该段所描述的两种产品相同的舒适度。 Not tested in the same manner as other commercially available products including return of Tan foam layer or INFINICEL coform, but does not provide the section with two products described in the same comfort.

[0124] 如上所述,由于吸收结构缺乏回弹性,导致垫的聚束,因此现有的采用纤维纤网的月经吸收结构造成内裤和身体污染的机会也更大。 [0124] As described above, because the absorbent structure lacks resilience, leading to bunching of the pad, so using conventional fibrous web absorbent structures menstrual undergarment and cause contamination of the body is greater opportunities. 该回弹性的缺乏以及随之发生的聚束也可导致这些现有的月经垫提供使用者以较差的合身和舒适感。 The lack of resilience, and consequent bunching can also cause these existing menstrual pad offer users the poor fit and comfort. 相反,如表I所述,本文所公开的吸收结构解决了该问题。 In contrast, as the Table I, the absorbent structures disclosed herein solves this problem.

[0125] 表I :消费者测试结果 [0125] Table I: Consumer Test Results

[0126] [0126]

108 gsm ALWAYS |传统垫: 108 gsm ALWAYS | Traditional pad:

.ロVISTAMAXX 2330 INFINITY HIPE ALWAYS 吸入辰.:聚合物,IOSgSmCF泡沫垫 超薄著通型 . Ro VISTAMAXX 2330 INFINITY HIPE ALWAYS inhalation e: polymers, IOSgSmCF thin foam pad on the type

405浆纤维 405 pulp fiber

具有25%超吸收剂丨NFiN丨CEL 保留层:的EAM NOVATHIN泡沫 25% superabsorbent having NFiN Shu Shu CEL retaining layer: a foam EAM NOVATHIN

_ J1501825 D丁NB 材料__ _ J1501825 D butoxy NB material __

总舒适度 4.3 4.2 3.8 Total comfort 4.3 4.2 3.8

总吸收性] 4.2 I: 4.2 Γ 4.0 The total absorbent] 4.2 I: 4.2 Γ 4.0

[0127] 上述数字代表五级分制的単元分等法,5代表更好。 [0127] The figure represents five-point grading method of radiolabeling element 5 is the better. 在前两列中的结果无统计学显著意义。 The first two showed no statistically significant. 在第三列的结果显示与前两列具有统计学显著差异,显示较差的結果。 In the third column show the results of the first two columns of a statistically significant difference, displayed poorer results. [0128] 參照以下吸收性复合材料测试方法和实施例可更好地理解本发明所述的吸收性复合材料84。 [0128] The absorbent composite reference to the following test methods and embodiments may be better understood with the absorbent composite 84 according to the present invention.

[0129] 吸收性复合材料测试方法:侧挤压测试 [0129] The absorbent composite Test Method: Test side extrusion

[0130] 侧挤压测试通过对垫样品进行侧向挤压,且然后进行减压来测量女性垫样品的柔软度和回弹性。 [0130] side of the pad by pressing the test sample side extrusion, and then under reduced pressure to measure the softness of the sample pad and female resilience. 使用CRE (恒速伸长率)拉カ测试仪(如MTS SINTECH 500/S model,序号500S/062696/203或等同物)以进行该测试。 Using the CRE (constant speed elongation) grades pull tester (e.g., MTS SINTECH 500 / S model, serial number 500S / 062696/203 or equivalent) to carry out the test. 数据采集软件为MTS TESTffORKS for WindowsVer. 4. IlC (MTS Systems Corporation, Eden Prairie, MN)。 Data acquisition software is MTS TESTffORKS for WindowsVer. 4. IlC (MTS Systems Corporation, Eden Prairie, MN). 根据所测试样品的峰カ值,侧挤压元件选自50牛顿或最大100牛顿,以使大部分峰负荷值落入侧挤压元件全量程值的10-90%间。 Grades based on the peak value of the test sample is selected from the side pressing member 50 Newton or 100 Newton maximum, so that the majority of peak load values ​​fall between 10-90% of the full side pressing scale value element. 在该测试中,将垫的两个边缘(即层压物的衬垫和外覆层)夹在拉力测试仪的顶端和底部夹持部,样品的中心对准夹持部的中心,样品位于夹持部正中。 In this test, the two edges of the mat (i.e., the liner and the outer cover laminate) interposed in the central tensile tester top and bottom of the nip, the sample holding portion is aligned with the center of the sample is located gripping the middle portion. 夹持面宽度为3英寸(76. 2_),夹持部的近似高度为I. O英寸(25. 4_)。 Clamping face width is 3 inches (76. 2_), the approximate height of the holding portion is I. O inch (25. 4 _). 在挤压和减压模式下测试速度为5±0. 04英寸/min(127±lmm/min)。 Under reduced pressure and the extrusion speed test mode is 5 ± 0. 04 inch / min (127 ± lmm / min). 将初始测量长度设置为55mm。 The initial measurement length is set to 55mm. 当测试开始时,夹持部彼此相向运动以挤压样品,直到夹持部距离为20± 1mm。 When the test starts, the gripping portions toward one another to compress the sample until the nip distance is 20 ± 1mm. 然后在测试结束时夹持部返回其初始位置。 At the end of the test and then returns to its original position holding portion. 可测试干燥样品。 Dry sample can be tested. 此外,可用5mL流体润湿所测试的干燥样品并在润湿条件下重新测试。 Further, the wetting fluid 5mL available dried sample was tested and re-tested under the wet condition.

[0131] 绘制压カ与距离的图像以产生挤压曲线。 [0131] Drawing from the image compression grades to produce extruded profile. 当从挤压状态下释放样品时也可绘制压カ与距离的图像,产生减压曲线。 When the sample is released from the pressed state can be drawn image and distance ka pressure, reduced pressure is generated curve.

[0132] 该测试仪的三个重要的测试參数如下。 [0132] Three important test parameters of the test instrument as follows. 峰挤压カ(gf)为在挤压曲线中检测到的达到挤压距离的最大力。 Extrusion grades peak (gf) to achieve the maximum force the squeeze distance detected in the extrusion curve. 较高的值表明需要更大的力将产品挤压至特定的厚度。 Higher values ​​indicate greater force is required to squeeze the product to a specific thickness. 在实际应用中,消费者佩戴产品并将其挤压在她的双腿之间。 In practical applications, consumer products and wearing squeezed between her legs. 较高的峰值カ表明需要更大的努力挤压产品。 Higher peak ka show the need for greater efforts to squeeze product. 挤压能(gfcm)为挤压曲线下的面积。 Pressing energy (GFCM) area under the curve is extruded. 较高的值表明产品更加难以挤压。 A higher value indicates that the product is more difficult to squeeze. 在实际应用中,这意味着需要更多的能量将产品挤压在双腿之间。 In practice, this means that the product will need more energy squeezed between the legs. 该參数考虑了所有的点而不只是峰值力。 This parameter takes into account all the points and not just the peak force. 最后,挤压回弾性(%)为减压与挤压面积的比值。 Finally, pressing back of Tan (%) is the ratio of the area of ​​the extrusion pressure. 更高的值表明更大的回复率。 Higher values ​​indicate a greater response rate. 在实际应用中,消费者佩戴产品并将其挤压在她的双腿之间。 In practical applications, consumer products and wearing squeezed between her legs. 当放开时产品恢复原来的状态。 When the product is released to restore the original state. 这有利于降低聚束和扭曲问题。 This helps reduce bunching and distortion problems. 理想地,在舒适度方面,人们需要易于挤压(峰值カ较低,能量较低)和回弹的产品。 Ideally, in terms of comfort, people need easy-to-squeeze (peak lower grades, lower energy) and rebound of products.

[0133] 相同的测试方法用于产生表2中的湿挤压和回弹数据,除了使用注射器将流体散布在体侧衬垫的整个区域中来将5ml月经模拟物加入干燥垫中。 [0133] The method for producing the same test in Table 2 and extruded wet resilience data, except for using a syringe dispersed throughout the fluid in the region of the bodyside liner to 5ml of menses simulant was added to the dry pad. 所使用的月经模拟物由稀释至按体积计30%的血细胞比容水平的猪血以及加入至带有模拟月经的粘蛋白成分的剪切的粘稠蛋清制成。 Made menses simulant was used diluted to a 30% by volume of pig blood hematocrit levels of blood cells, and added to the mucin component of menses with simulated egg white viscous shear. 该模拟物购自Cocalico Biologicals, Inc. of Reamstown,Pennsylvania,并且也在Achter等人的第5, 883, 231号美国专利,和Misek等人的第7,632,258号美国专利中进行了描述,将其全部内容引入本文作为參考,以其不互相抵触为限。 The mimetic available from Cocalico Biologicals, Inc. of Reamstown, Pennsylvania, and also Achter et al., 5, 883, U.S. Pat. No. 231, and Misek et al., U.S. Patent No. 7,632,258 are described , incorporated in its entirety herein by reference, without conflicting with its limited thereto.

[0134] 吸收件复合材料的实施例 [0134] Example embodiments of the absorbent composite member

[0135] 实施例A :市售的ALWAYS INFINITY普通型月经垫。 Normal commercially available ALWAYS INFINITY catamenial pad: [0135] Example A.

[0136]实施例 B :U by KOTEX CLEANWEAR 普通型垫。 [0136] Example B: U by KOTEX CLEANWEAR common type pad.

[0137]对于以下实施例,VISTAMAXX 2330 聚合物购自ExxonMobil Chemical Corp.,CF 405浆纤维购自Weyerhaeuser Co.,和FAVOR SXM9500超吸收性颗粒购自Evonikbtockhausen,Inc0[0138] 实施例I :生产并测试具有如图11所描述的形状的垫,所述垫包括第一吸入层(86)和保留层(94),所述第一吸入层(86)包括具有108gsmVISTAMAXX 2330聚合物和108gsm CF405浆纤维的回弹性共成形材料,所述保留层(94)包括EAMN0VATHINJ1501825DTNB材料(高密度氢键合绒毛/超吸收性聚合物材料)。 [0137] For the following examples, VISTAMAXX 2330 polymer available from ExxonMobil Chemical Corp., CF 405 pulp fibers available from Weyerhaeuser Co., and FAVOR SXM9500 superabsorbent particles available from Evonikbtockhausen, Inc0 [0138] Example I: Production and test 11 has a shape as described in FIG pad, said pad comprising a first intake layer (86) and the retaining layer (94), said first suction layer (86) comprises a polymer having a 108gsmVISTAMAXX 2330 and 108gsm CF405 pulp fibers the resilient coform material, the retaining layer (94) comprises a EAMN0VATHINJ1501825DTNB material (high-density hydrogen bonding fluff / superabsorbent polymer material).

[0139] 实施例2 :生产并测试具有如图10所描述的形状但无孔(95)的垫;所述垫包括第一吸入层(86)和保留层(94),所述第一吸入层(86)包括具有108gsm VISTAMAXX 2330聚合物和108gsm CF405浆纤维的回弹性共成形材料,所述保留层(94)包括EAM N0VATHINJ1501825DTNB材料(高密度氢键合绒毛/超吸收性聚合物材料)。 [0139] Example 2: Production and tested without having a hole shape (95) of the pad depicted in Figure 10; the suction pad includes a first layer (86) and the retaining layer (94), said first suction layer (86) comprises a polymer having a 108gsm VISTAMAXX 2330 resiliency and 108gsm CF405 pulp fiber coform material, the retaining layer (94) comprises EAM N0VATHINJ1501825DTNB material (high-density hydrogen bonding fluff / superabsorbent polymer material).

[0140] 实施例3 :生产并测试具有如图10所描述的形状但无孔(95)的垫;所述垫包括第一吸入层(86)、保留层(94)和分布层(96),所述第一吸入层(86)包括具有IOSgsmVISTAMAXX 2330聚合物和108gsm CF 405浆纤维的回弹性共成形材料,所述保留层(94)包括EAM N0VATHINJ1501825DTNB材料(高密度氢键合绒毛/超吸收性聚合物材料),所述分布层(96 )包括2层50gsm熔喷纤维。 [0140] Example 3: Production and tested without having a hole shape (95) of the pad depicted in Figure 10; the suction pad includes a first layer (86), retaining layer (94) and the distribution layer (96) the first intake layer (86) comprises a polymer having a IOSgsmVISTAMAXX 2330 resiliency and 108gsm CF 405 pulp fiber coform material, the retaining layer (94) comprises EAM N0VATHINJ1501825DTNB material (high-density hydrogen bonding fluff / superabsorbent polymeric materials), said distribution layer (96) comprises two layers 50gsm meltblown fibers.

[0141] 实施例4 :生产并测试具有如图10所描述的形状但无孔(95)的垫;所述垫包括第一层和第二层,所述第一层包括具有108gsm VISTAMAXX 2330聚合物和108gsmCF405浆纤维的回弹性共成形材料,所述第二层包括Glatfelter Airlaid DT200. 102。 [0141] Example 4: produced and tested having a shape without holes (95) of the pad depicted in Figure 10; said pad comprising a first layer and a second layer, said first layer comprising a polymeric 108gsm VISTAMAXX 2330 was 108gsmCF405 resilient pulp fibers and a coform material, the second layer comprises Glatfelter Airlaid DT200. 102.

[0142] 实施例5 :生产并测试具有如图10所描述的形状的垫;所述垫包括第一吸入层 [0142] Example 5: produced and tested having the shape of FIG. 10 described pad; said pad comprising a first intake layer

(86)和保留层(94),所述第一吸入层(86)包括密度为O. 07g/cc的150gsm聚烯烃泡沫和 150gsm and polyolefin foam (86) and the retaining layer (94), said first suction layer (86) comprises a density of O. 07g / cc of

O. 5osy纺粘基材,所述保留层(94)包括由108gsmVISTAMAXX 2330聚合物、75gsmCF405浆纤维、和32gsm FAVOR SXM9500超吸收性颗粒制成的215gsm共成形材料。 O. 5osy spunbond substrate, said retention layer (94) comprises a polymer 108gsmVISTAMAXX 2330, made 75gsmCF405 pulp fibers and superabsorbent particles 32gsm FAVOR SXM9500 215gsm coform material. 形成贯穿两层的41个孔(95)的孔图案,每个孔直径为3mm,排列为如图10所描述的图案。 Patterning the hole 41 through two holes (95), each hole having a diameter of 3mm, the described arrangement pattern 10 as shown in FIG. 图10所描述的垫的轮廓用于在上下文中显示孔(95)的一般联系。 Profile depicted in Figure 10 for displaying a general pad contact hole (95) in this context.

[0143] 实施例6 :生产并测试具有如图10所描述的形状但无孔(95)的垫;所述垫包括第一吸入层(86)和保留层(94),所述第一吸入层(86)包括具有108gsm VISTAMAXX 2330聚合物和108gsm CF 405衆纤维的回弹性共成形材料,所述保留层(94)包括由108gsmVISTAMAXX 2330聚合物、75gsmCF 405浆纤维、和32gsm FAVOR SXM9500超吸收性颗粒制成的215gsm共成形材料。 [0143] Example 6: Production and Testing has a shape without holes (95) of the pad depicted in Figure 10; the suction pad includes a first layer (86) and the retaining layer (94), said first suction layer (86) comprises a resilient polymer having a 108gsm VISTAMAXX 2330 108gsm 405 and all the fibers CF coform material, the retaining layer (94) comprises a polymer 108gsmVISTAMAXX 2330, 75gsmCF 405 pulp fibers, and superabsorbent 32gsm FAVOR SXM9500 particles made of 215gsm coform material.

[0144] 实施例7 :生产并测试具有如图10所描述的形状但无孔(95)的垫;所述垫包括第一吸入层(86)和保留层(94),所述第一吸入层(86)包括具有108gsm VISTAMAXX 2330聚合物和108gsm CF 405衆纤维的回弹性共成形材料,所述保留层(94)包括IOOgsm射流喷网材料。 [0144] Example 7: produced and tested having a shape without holes (95) of the pad depicted in Figure 10; the suction pad includes a first layer (86) and the retaining layer (94), said first suction layer (86) comprises a resilient polymer having a 108gsm VISTAMAXX 2330 108gsm CF 405 and all fiber coform material, the retaining layer (94) comprises a spunlace material IOOgsm.

[0145] 表2 :测试结果:侧挤压测试 [0145] Table 2: Test Results: Test side extrusion

[0146] [0146]

Figure CN102844009AD00251

[0147] -VM2330 是指购自ExxonMobil Chemical Corp.的VISTAMAXX 2330 聚合物 [0147] -VM2330 refers VISTAMAXX available from ExxonMobil Chemical Corp. 2330 polymer

[0148] -CF 405 是指购自Weyerhaeuser Co.的CF 405 衆纤维。 [0148] -CF 405 refers to commercially available from the Weyerhaeuser Co. of 405 public CF2 fibers.

[0149] -SXM9500 是指购自Evonik Stockhausen, Inc.的FAVOR SXM9500 超吸收性颗粒。 [0149] -SXM9500 refers available from FAVOR SXM9500 Evonik Stockhausen, Inc. The superabsorbent particles.

[0150]-由于垫的形状也可影响测量的可挤压性和回弹性,将图11所示的垫形状用于实施例1,如图10所示的垫形状用于实施例2-7。 [0150] - Example since the shape of the pad may also affect the measurement can be extruded and resiliency, the shape of the pad shown in FIG. 11 for the pad shape, as shown in Figure 2-7 for Example 110 . [0151] 上述包括回弹性共成形材料各实施例具有相当于或低于ALWAYSINFINITY普通型垫的峰值力。 Each of the embodiments [0151] The coform material comprising a resilient embodiments having equal to or less than the peak force ALWAYSINFINITY common type pad.

[0152] 虽然从具体方面对本发明进行了详细描述,但应懂得本领域技术人员在理解前述内容后能够容易地想到这些方面的改变、变化和等同方式。 [0152] While the invention has been described in detail from the specific aspects, it is to be understood to those skilled in the understanding of the foregoing may readily conceive variations, changes and equivalents to these aspects. 因此,本发明的范围应确定为所附权利要求和其任何等同方式的范围。 Accordingly, the scope of the invention should be determined as the scope of the appended claims and any equivalents thereof. 此外,应指出本文所描述的任何给定范围旨在包括任何且全部较小的包含范围。 In addition, it should be noted herein described any given range is intended to include any and all lesser included ranges. 例如,45-90的范围也包括50-90、45-80、46-89等。 For example, the range of 45-90 50-90,45-80,46-89 the like are also included.

Claims (22)

  1. 1. 一种在吸收性制品中置于顶片与底片之间的吸收性复合材料,所述吸收性复合材料包括: 置于顶片与底片之间的第一吸入层;和置于顶片与底片之间的保留层, 其中所述第一吸入层和所述保留层中的ー个包括回弾性共成形材料。 An absorbent composite disposed between the topsheet and backsheet in an absorbent article, said absorbent composite comprising: a first intake layer disposed between the topsheet and backsheet; and placed on top of sheet between the backsheet and the retaining layer, wherein the first layer and the intake layer retention ー comprises a coform material of the back Dan.
  2. 2.根据权利要求I所述的吸收性复合材料,其中所述第一吸入层包括回弾性共成形材料,并且其中所述保留层包括共成形材料、回弾性共成形材料、粘合梳理纤网(BCW)材料、和气流法材料中的ー种。 2. The absorbent composite according to claim I, wherein the first layer comprises a back suction of Tan coform material, and wherein said retaining layer comprises a coform material of the back Tan coform material, bonded carded web (the BCW) material, and ー kinds of airlaid material.
  3. 3.根据权利要求2所述的吸收性复合材料,其中,所述保留层还包括超吸收性材料。 3. The absorbent composite according to claim 2, wherein said retention layer further comprises a superabsorbent material.
  4. 4.根据权利要求2所述的吸收性复合材料,其中,所述保留层还包括绒毛浆。 4. The absorbent composite according to claim 2, wherein said retention layer further comprises pulp fluff.
  5. 5.根据权利要求I所述的吸收性复合材料,其中所述第一吸入层包括回弾性共成形材料,并且其中所述保留层包括高密度氢键合绒毛/超吸收性聚合物材料、射流喷网材料、超吸收性聚合物/粘性复合材料和泡沫材料中的ー种。 The absorbent composite according to claim I, wherein the first layer comprises a back suction of Tan coform material, and wherein said retaining layer comprises a high hydrogen bonding density fluff / superabsorbent polymer material, the jet lace material, the superabsorbent polymer / viscosity composites and ー species in the foam material.
  6. 6.根据权利要求5所述的吸收性复合材料,其中,所述保留层还包括绒毛浆。 6. The absorbent composite according to claim 5, wherein said retention layer further comprises pulp fluff.
  7. 7.根据权利要求I所述的吸收性复合材料,其中,所述保留层包括回弾性共成形材料,并且其中所述第一吸入层包括共成形材料、回弾性共成形材料、气流法材料、粘合梳理纤网(BCff)材料和泡沫材料中的ー种。 The absorbent composite according to claim I, wherein the retaining layer comprises a coform material of the back Tan, and wherein the first layer comprises a coform material sucked back Dan of coform material, an airlaid material, bonded carded web (BCff) material and a foam material ー species.
  8. 8.根据权利要求7所述的吸收性复合材料,其中,所述第一吸入层还包括绒毛浆。 8. The absorbent composite of claim 7, wherein said first layer further comprises a suction fluff pulp.
  9. 9.根据权利要求7所述的吸收性复合材料,其中,在所述保留层中的所述回弹性共成形材料包括超吸收性材料。 9. The absorbent composite of claim 7, wherein said resilient retaining layer is in the coform material comprising a superabsorbent material.
  10. 10.根据权利要求I所述的吸收性复合材料,还包括置于顶片与底片之间的分布层,所述分布层包括熔喷微纤维材料、射流喷网材料和泡沫材料中的ー种。 10. The absorbent composite according to claim I, further comprising a distribution layer positioned between the topsheet and backsheet, said distribution layer comprises a meltblown microfiber materials, spunlaced materials ー species and the foam material .
  11. 11.根据权利要求I所述的吸收性复合材料,其中所述第一吸入层包括回弾性共成形材料,并且其中所述保留层包括高密度氢键合绒毛/超吸收性聚合物材料。 11. The absorbent composite according to claim I, wherein the first layer comprises a back suction of Tan coform material, and wherein said retaining layer comprises a high hydrogen bonding density fluff / superabsorbent polymer material.
  12. 12.根据权利要求I所述的吸收性复合材料,其中,所述第一吸入层包括回弾性共成形材料,并且其中所述保留层包括气流法材料。 12. The absorbent composite according to claim I, wherein the first layer comprises a back suction of Tan coform material, and wherein said retaining layer comprises airlaid material.
  13. 13.根据权利要求I所述的吸收性复合材料,其中,所述第一吸入层和所述保留层均包括回弾性共成形材料。 13. The absorbent composite according to claim I, wherein said first and said intake layer retention layer comprises a coform material of the back Dan.
  14. 14.根据权利要求13所述的吸收性复合材料,其中,所述保留层还包括超吸收性材料。 14. The absorbent composite according to claim 13, wherein said retention layer further comprises a superabsorbent material.
  15. 15.根据权利要求I所述的吸收性复合材料,还包括通常与所述第一吸入层平行放置的第二吸入层,所述第二吸入层包括气流法材料、粘合梳理纤网(BCW)材料、回弾性共成形材料和泡沫材料中的ー种。 15. The absorbent composite of claim I, further comprising a second suction layer is generally disposed parallel to the first intake layer, the second layer comprises a suction airlaid material, a bonded carded web (the BCW ) material, a coform material of the back and Tan foam material ー species.
  16. 16.根据权利要求I所述的吸收性复合材料,其中,所述吸入层位于所述顶片与所述保留层之间,并且其中所述保留层位于所述底片与所述吸入层之间。 16. The absorbent composite according to claim I, wherein said layer is positioned between said topsheet and said suction hold layer, and wherein said retention layer is located between the backsheet layer with the suction .
  17. 17. —种在吸收性制品中置于顶片与底片之间的吸收性复合材料,所述吸收性复合材料包括: 第一吸入层,所述第一吸入层包括共成形材料、回弾性共成形材料、气流法材料、粘合梳理纤网(BCW)材料和泡沫材料中的ー种;和置于顶片与底片之间的保留层,所述保留层包括共成形材料、回弾性共成形材料、气流法材料、高密度氢键合绒毛/超吸收性聚合物材料、射流喷网材料、超吸收性聚合物/粘性复合材料和泡沫材料中的ー种,其中所述第一吸入层和所述保留层中的ー个包括回弹性共成形材料。 17. - Species absorbent composite disposed between the topsheet and backsheet in an absorbent article, said absorbent composite comprising: a first intake layer, the first layer comprises a coform material sucked back Tan copolyester molding material, airlaid material, a bonded carded web (the BCW) material and the foam material ー species; and a retaining layer disposed between the topsheet and backsheet, said retaining layer comprises a coform material of co-formed back Tan materials, airlaid materials, high hydrogen bonding density fluff / superabsorbent polymer material, a spunlace material, the superabsorbent polymer / viscosity and foam composite material ー species, wherein the first layer and the suction in the retaining layer comprises a resilient ー coform material.
  18. 18. 一种适合在吸收性制品中置于顶片与底片之间的吸收性复合材料,所述吸收性复合材料包括: 第一吸入层,所述第一吸入层包括回弾性共成形材料;和置于顶片与底片之间的保留层,所述保留层包括共成形材料、回弾性共成形材料、气流法材料、高密度氢键合绒毛/超吸收性聚合物材料、射流喷网材料、超吸收性聚合物/粘性复合材料和泡沫材料中的ー种。 18. A suitable absorbent composite disposed between the topsheet and backsheet in an absorbent article, said absorbent composite comprising: a first intake layer, the first layer comprises a back suction of Tan coform material; and a retaining layer disposed between the topsheet and backsheet, said retaining layer comprises a coform material of the back Tan coform material, an airlaid material, a high hydrogen bonding density fluff / superabsorbent polymer material, a spunlace material , superabsorbent polymer / viscosity composites and ー species in the foam material.
  19. 19. ー种具有顶片和底片的吸收性个人护理制品,所述制品包括: 置于顶片与底片之间的吸收性复合材料,所述吸收性复合材料包括第一吸入层以及置于所述顶片与所述底片之间的保留层,所述第一吸入层包括回弾性共成形材料,所述保留层包括共成形材料、回弾性共成形材料气流法材料、高密度氢键合绒毛/超吸收性聚合物材料、射流喷网材料、超吸收性聚合物/粘性复合材料和泡沫材料中的ー种。 19. The absorbent personal care article ー species, said article having a backsheet and a topsheet comprising: an absorbent composite disposed between the topsheet and backsheet, said absorbent composite comprising a first layer and disposed by the suction retaining layer between said topsheet and said backsheet, said first layer comprises a back suction of Tan coform material, the retaining layer comprises a coform material, an airlaid material back Tan coform materials, high hydrogen bonding density fluff / superabsorbent polymer material, a spunlace material, the superabsorbent polymer / viscosity and foam composite material ー species.
  20. 20. 一种制备具有吸收性复合材料的吸收性个人护理制品的方法,所述方法包括: 将吸收性材料流与熔喷纤维流合并以形成复合材料流; 在成形表面上收集所述复合材料流以形成回弾性共成形无纺纤网;和将所述回弾性共成形无纺纤网与顶片和底片相结合。 20. An absorbent personal care article having the absorbent composite prepared, said method comprising: an absorbent material flow streams are combined with the meltblown fibers to form a composite stream; collected on a forming surface of the composite material Tan stream to form a back of the coform nonwoven web; and the return of Dan coform nonwoven web combined with the topsheet and backsheet.
  21. 21. ー种适用于具有顶片和底片的吸收性制品的吸收性复合材料,所述吸收性复合材料包括: 包括置于所述顶片与所述底片之间的泡沫材料的吸入层,所述吸入层具有多个穿过该吸入层的孔;和置于所述顶片与所述底片之间的保留层,其中所述保留层包括回弾性共成形材料。 21. ー species suitable for absorbent composites having a backsheet and a topsheet of an absorbent article, said absorbent composite comprising: intake layer comprises a foam material disposed between said topsheet and said backsheet, the said intake layer has a hole through the plurality of intake layer; and a retaining layer disposed between said top sheet and said backsheet, wherein said retaining layer comprises a coform material of the back Dan.
  22. 22.根据权利要求21所述的吸收性复合材料,其中,所述保留层具有多个穿过该保留层的孔。 22. The absorbent composite according to claim 21, wherein said retaining layer having a plurality of apertures through the layer remains.
CN 201180019366 2010-04-16 2011-03-15 Absorbent composite with resilient coform layer CN102844009A (en)

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US12/872,190 2010-08-31
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