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    Soft nonwoven laminate bonded by adhesive on reinforcing scrim
    2.
    发明授权
    Soft nonwoven laminate bonded by adhesive on reinforcing scrim 失效
    通过粘合剂粘合在加强稀松布上的软非织造层压材料

    公开(公告)号：US4522863A

    公开(公告)日：1985-06-11

    申请号：US105273

    申请日：1984-06-21

    Applicant: Daniel H. Keck ,  Ralph V. Braun ,  Mark B. Majors

    Inventor： Daniel H. Keck ,  Ralph V. Braun ,  Mark B. Majors

    IPC: B32B5/26 ,  D04H13/00 ,  D21H27/00 ,  D21H27/30 ,  B32B7/14

    CPC classification number: B32B5/26 ,  D04H1/4374 ,  D04H1/56 ,  Y10S428/903 ,  Y10T428/2481 ,  Y10T428/24826 ,  Y10T442/155

    Abstract: Improved nonwoven fabric laminate including one or more tissue plies as an outside layer, a middle layer as a primary strength bearing member comprising a scrim carrying a heat reactable plastisol adhesive and, on the side of the scrim opposite from the tissue, a layer of meltblown microfibers. The resulting combination, when bonded by means of the adhesive on the scrim, provides windows of relatively unbonded fibers reinforced with bonded scrim threads. Preferably, the microfiber web is substantially unbonded prior to combining with the other components so that a bulky and soft material results in the window areas between the scrim threads. Also preferably the tissue is low porosity formed from essentially unrefined or only slightly refined pulp. Such laminates find ideal applications as substitutes for cloth, particularly in disposable garments and other fabrics for medical use. For these purposes and others, various treatments may be applied to achieve properties such as water repellency, fire retardency, alcohol repellency, and the combination may be physically compacted for even further softness. The combination exhibits improved water repellency, tactile and strength properties.

    Abstract translation: 改进的非织造织物层压体包括一个或多个组织层作为外层，中间层作为主要强度承载构件，其包含承载热可反应的增塑溶胶粘合剂的稀松布，并且在与组织相对的稀松布的一侧具有熔喷层 微纤维 当通过粘合剂在松紧线上粘合时，所得到的组合提供了用粘结的稀松纱线增强的相对未粘合纤维的窗口。 优选地，超细纤维网在与其它组分组合之前基本上未粘合，使得笨重和柔软的材料导致稀松布线之间的窗口区域。 还优选地，组织是由基本上未精制或仅略微精制的纸浆形成的低孔隙率。 这种层压板可以作为布料的替代品，特别是在一次性衣物和用于医疗用途的其它织物中找到理想的应用。 为了这些目的和其他目的，可以应用各种处理以获得诸如拒水性，阻燃性，拒斥拒斥性的性能，并且组合可以被物理压实以进一步柔软。 该组合具有改善的防水性，触感和强度性能。

    Latex coated breathable barrier
    3.
    发明授权
    Latex coated breathable barrier 失效
    乳胶涂层透气屏障

    公开(公告)号：US4818600A

    公开(公告)日：1989-04-04

    申请号：US130778

    申请日：1987-12-09

    Applicant: Ralph V. Braun ,  Christine H. Brown ,  Steven W. Fitting ,  Lance J. Garrett, Jr. ,  David C. Law ,  Robert E. Weber

    Inventor： Ralph V. Braun ,  Christine H. Brown ,  Steven W. Fitting ,  Lance J. Garrett, Jr. ,  David C. Law ,  Robert E. Weber

    IPC: A61F13/15 ,  B32B5/18 ,  D04H1/56 ,  D06N3/00 ,  D06N3/04 ,  D06N7/00 ,  B32B27/00

    CPC classification number: A61F13/5148 ,  A61F13/141 ,  A61F13/51405 ,  A61F13/5146 ,  B32B5/18 ,  D04H1/56 ,  D06N3/0002 ,  D06N3/04 ,  D06N7/00 ,  A61F2013/15016 ,  D06N2205/023 ,  D06N2209/123 ,  Y10T428/263 ,  Y10T442/2139 ,  Y10T442/2918 ,  Y10T442/68

    Abstract: A breathable barrier which includes:A. a first layer which is a porous sheet having a first side and a second side; andB. a second layer joined to the first side of the first layer, which second layer is a continuous film of a polymeric latex material, in which:the film is not microporous in that it is substantially free of voids which connect the two surfaces of the film; andthe film has an average thickness of from about 10 to about 250 microns;wherein the first layer side of the second layer is intimately comingled with at least some of the fibers at the surface of the first side of the first layer, none of the pores at the surface of the first side of the first layer are so large as to significantly adversely affect the barrier properties of the breathable barrier as a consequence of the comingling, and the breathable barrier has a water vapor transmission rate at 37.degree. C. and about 50 percent relative humidity of from about 100 to about 2,200 g/m.sup.2 /24 hours and is impermeable to 0.9 percent by weight saline solution at about 21.degree. C. for a period of at least about one hour at a hydrostatic head of at least about 11.4 cm.In place of a coating, the continuous film can be a preformed film of a water-soluble polymeric material which is laminated to the porous sheet. In preferred embodiments, the porous sheet is a meltblown nonwoven web. The disclosed breathable barrier is especially useful as outer covers and baffles in such disposable absorbent articles as diapers, sanitary napkins, and incontinent pads. The breathable barrier also can be used in more durable or protective type applications including garments such as rainwear.

    Abstract translation: 一种透气屏障，包括：A.第一层，其是具有第一侧和第二侧的多孔片; 和B.连接到第一层的第一侧的第二层，该第二层是聚合物胶乳材料的连续膜，其中：该膜不是微孔的，因为它基本上不含连接两个表面的空隙 的电影; 并且该膜具有约10至约250微米的平均厚度; 其中第二层的第一层侧在第一层的第一面的表面处与至少一些纤维紧密地相连，第一层的第一面的表面上的孔都不大于 从而显着地不利地影响透气屏障的阻挡性能，并且透气屏障在37℃和约50％相对湿度下具有约100至约2,200g / m 2 / 24小时，并且在约21℃的0.9重量％盐水溶液中不渗透至少约11.4厘米的静水压头至少约1小时的时间。 代替涂层，连续膜可以是层压到多孔片材上的水溶性聚合物材料的预成型膜。 在优选的实施方案中，多孔片是熔喷非织造纤维网。 所公开的透气屏障特别适用于诸如尿布，卫生巾和失禁垫的这种一次性吸收制品中的外盖和挡板。 透气屏障也可用于更耐用或保护型应用，包括雨衣等服装。

    Breathable, multilayered, clothlike barrier
    5.
    发明授权
    Breathable, multilayered, clothlike barrier 失效
    透气，多层，布状屏障

    公开(公告)号：US4828556A

    公开(公告)日：1989-05-09

    申请号：US925332

    申请日：1986-10-31

    Applicant: Ralph V. Braun ,  Lance Garrett ,  Robert J. Phelan ,  Richard S. Yeo

    Inventor： Ralph V. Braun ,  Lance Garrett ,  Robert J. Phelan ,  Richard S. Yeo

    IPC: A61F13/15 ,  A61L15/24 ,  A61L15/42 ,  B32B5/26 ,  D04H13/00

    CPC classification number: A61F13/51462 ,  A61F13/51405 ,  A61F13/51478 ,  A61L15/24 ,  A61L15/425 ,  B32B27/08 ,  B32B27/12 ,  B32B27/306 ,  B32B5/022 ,  B32B5/22 ,  B32B5/26 ,  A61F2013/51417 ,  A61F2013/51423 ,  A61F2013/51441 ,  A61F2013/51443 ,  B32B2255/02 ,  B32B2262/0223 ,  B32B2262/0253 ,  B32B2307/724 ,  B32B2307/7265 ,  Y10S428/913

    Abstract: A breathable, multilayer, clothlike barrier especially suitable for use as an outer cover or baffle in such disposable absorbent articles as diapers, sanitary napkins, and incontinent pads, which barrier has at least three layers:A. a first layer which is a porous meltblown nonwoven web having a first side and a second side;B. a second layer joined to the first side of the first layer, which second layer is a continuous film of a poly(vinyl alcohol), in which:the film is not microporous in that it is substantially free of voids which connect the two surfaces of the film; andthe film has an average thickness of from about 3 to about 250 microns; andC. a third layer joined to either the second layer or the second side of the first layer, which third layer is a porous nonwoven web;wherein the first layer side of the second layer is intimately comingled with at least some of the fibers of the first side of the first layer, none of the pores at the surface of the first side of the first layer are so large as to significantly adversely affect the barrier properties of the barrier as a consequence of said comingling, and the barrier has a water vapor transmission rate at 37 degrees about fifty percent relative humidity of from about 100 to Celsius and about 5,000 g/m.sup.2 /24 hour and is impermeable to 0.9 percent by weight saline solution at about 21 degrees C. for a period of at least about one hour at a hydrostatic head of at least about 11.4 cm.

    Abstract translation: 一种透气的，多层的布状屏障，特别适用于这种一次性吸收制品中的外罩或挡板，如尿布，卫生巾和失禁垫，该屏障具有至少三层：A.第一层是多孔熔喷 具有第一侧和第二侧的非织造纤维网; B.连接到第一层的第一侧的第二层，该第二层是聚（乙烯醇）的连续膜，其中：该膜不是微孔的，因为它基本上不含连接两个 薄膜表面; 并且该膜的平均厚度为约3至约250微米; C.第三层，其连接到第一层的第二层或第二侧，该第三层是多孔非织造纤维网; 其中第二层的第一层侧与第一层的第一侧的至少一些纤维紧密地接合，第一层的第一侧的表面上的孔隙都不会大到不利地 影响屏障的屏障性能，因为屏障具有37度约50％相对湿度为约100摄氏度至约5,000克/平方米/ 24小时的水汽透过率，并且不透水 在约21℃下的0.9重量％盐水溶液在至少约11.4厘米的静水压头处至少约1小时。

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