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    Low-shrink polypropylene tape fibers
    222.
    发明申请
    Low-shrink polypropylene tape fibers 审中-公开
    低收缩聚丙烯带纤维

    公开(公告)号：US20030134118A1

    公开(公告)日：2003-07-17

    申请号：US10036604

    申请日：2001-12-21

    Inventor： Brian G. Morin ,  Martin E. Cowan ,  Kenneth B. Higgins

    IPC: B32B027/04 ,  B32B027/02 ,  D05C017/00 ,  D02G003/00

    CPC classification number: B32B5/26 ,  B32B5/06 ,  B32B2307/734 ,  B32B2471/00 ,  D06N7/0073 ,  D06N7/0081 ,  D06N2201/02 ,  D06N2201/0254 ,  D06N2201/0263 ,  D06N2201/082 ,  D06N2201/12 ,  D06N2205/06 ,  D06N2209/1628 ,  Y10T428/23979 ,  Y10T428/2913 ,  Y10T428/2933 ,  Y10T428/2973 ,  Y10T442/102 ,  Y10T442/2385 ,  Y10T442/2918 ,  Y10T442/3089 ,  Y10T442/3114

    Abstract: Improvements in preventing heat- and moisture-shrink problems in specific polypropylene tape fibers are provided. Such fibers are basically manufactured through the initial production of polypropylene films or tubes which are then slit into very thin, though flat (and having very high cross sectional aspect ratios) tape fibers thereafter. Such fibers (and thus the initial films and/or tubes) require the presence of certain compounds that quickly and effectively provide rigidity to the target polypropylene tape fiber after heat-setting. Generally, these compounds include any structure that nucleates polymer crystals within the target polypropylene after exposure to sufficient heat to melt the initial pelletized polymer and upon allowing such a melt to cool. The compounds must nucleate polymer crystals at a higher temperature than the target polypropylene without the nucleating agent during cooling. In such a manner, the nullrigidifyingnull nucleator compounds provide nucleation sites for polypropylene crystal growth. Upon slitting of the initial film and/or tube, the fiber is then exposed to sufficient heat to grow the crystalline network, thus holding the fiber in a desired position. The preferred nullrigidifyingnull compounds include dibenzylidene sorbitol based compounds, as well as less preferred compounds, such as sodium benzoate, certain sodium and lithium phosphate salts (such as sodium 2,2null-methylene-bis-(4,6-di-tert-butylphenyl)phosphate, otherwise known as NA-11). Specific methods of manufacture of such inventive tape fibers, as well as fabric articles made therefrom, are also encompassed within this invention.

    Abstract translation: 提供了防止特定聚丙烯带纤维中的热收缩和水分收缩问题的改进。 这种纤维基本上通过初始生产聚丙烯薄膜或管制成，然后将其切成非常薄的（但具有非常高的截面长宽比）的带状纤维。 这样的纤维（因此初始的膜和/或管）需要存在某些化合物，其在热定型之后快速且有效地为目标聚丙烯带纤维提供刚性。 通常，这些化合物包括在暴露于足够的热量以熔化初始颗粒状聚合物之后和允许这样的熔体冷却时使目标聚丙烯中的聚合物晶体成核的任何结构。 在冷却期间，化合物必须在比没有成核剂的目标聚丙烯更高的温度下使聚合物晶体成核。 以这种方式，“硬化”成核剂化合物提供聚丙烯晶体生长的成核位点。 在切割初始膜和/或管时，然后将纤维暴露于足够的热量以生长结晶网络，从而将纤维保持在期望的位置。 优选的“硬化”化合物包括二亚苄基山梨醇基化合物，以及较不优选的化合物，例如苯甲酸钠，某些钠和磷酸锂盐（例如2,2'-亚甲基 - 双 - （4,6-二 - 叔丁基苯基）磷酸酯，也称为NA-11）。 制造这种本发明的带状纤维的具体方法以及由其制成的织物制品也包括在本发明内。

    Floor mat, system and method
    226.
    发明申请
    Floor mat, system and method 审中-公开
    地垫，系统和方法

    公开(公告)号：US20020045021A1

    公开(公告)日：2002-04-18

    申请号：US09927016

    申请日：2001-08-09

    Inventor： V. Christopher Brown ,  Amy B. Streeton

    IPC: B32B003/14

    CPC classification number: A47L23/266 ,  B32B2038/0076 ,  B32B2471/04 ,  D06N7/0071 ,  D06N2201/02 ,  D06N2201/0263 ,  D06N2205/04 ,  D06N2209/0807 ,  Y10T156/1052 ,  Y10T428/163 ,  Y10T428/23979 ,  Y10T428/24777

    Abstract: A floor mat, system and method, wherein one embodiment of the mat comprises a nonwoven substrate through which carpet pile fibers are tufted and which also comprises either a foam rubber backing sheet which exhibits the same degree of shrinkage as the carpet pile component or a rubber backing sheet which possesses a strength modulus above about 1,000 pounds per square inch. With such backing sheet requirements either the overall shrinkage of the mat will be even or the backing sheet will be strong enough to compensate for varying degrees of shrinkage between the pile substrate and the backing sheet. The resultant floor mat meets industrial laundry standards of rippling (i.e., curling up) and delaminating (i.e., loosening and ultimate falling out of tufted pile fibers), preferably utilizes a nonwoven carpet pile substrate, and is able to withstand vigorous laundry processes without either damaging the subject rotary washer or centrifugal dryer or becoming damaged itself upon exposure to such harsh conditions.

    Abstract translation: 地板垫，系统和方法，其中垫的一个实施例包括非织造基底，通过该非织造基底，绒毛绒头纤维被簇绒并且还包括呈现与绒头绒头部件相同程度的收缩的泡沫橡胶背衬片材或橡胶 具有高于约1,000磅/平方英寸的强度模量的背衬片。 对于这种背衬片要求，垫的总体收缩率将是均匀的，或者背衬片将足够强以补偿绒头基底和背衬片之间的不同程度的收缩。 所得到的地板垫符合工业洗涤标准的波纹（即卷曲）和分层（即松散和最终从簇绒绒毛纤维中脱落），优选使用无纺布地毯绒毛衬底，并且能够承受剧烈的衣物过程，而无需任何 损坏本体旋转垫圈或离心式干燥器，或在暴露于这种苛刻条件下自身损坏。

    Carpet and carpet making methods
    227.
    发明申请
    Carpet and carpet making methods 审中-公开
    地毯和地毯制作方法

    公开(公告)号：US20020039636A1

    公开(公告)日：2002-04-04

    申请号：US09982812

    申请日：2001-10-22

    Inventor： Wilbert E. Fink ,  Jean-Claude Auguste

    IPC: D05C017/00 ,  D06C029/00

    CPC classification number: B32B5/02 ,  B32B27/12 ,  B32B27/32 ,  B32B2262/0261 ,  B32B2323/10 ,  B32B2471/02 ,  D05C17/02 ,  D06N7/0068 ,  D06N7/0076 ,  D06N2201/02 ,  D06N2201/0245 ,  D06N2201/0254 ,  D06N2201/0263 ,  D06N2203/041 ,  D06N2203/042 ,  D06N2213/065

    Abstract: The disclosure relates to a carpet product, a process for manufacturing carpet, and an apparatus used in a carpet manufacturing process. The carpet product is made from tufted polymer filament yarn wherein the individual yarn filaments of the yarn back loops are integrally fused so that the carpet resists fuzzing. The primary backing preferably is modified polypropylene in the fill direction. Further, the primary backing may be coated with a polymer before tufting to adhere or integrally fuse the inside of the fiber tuft to the primary backing. An optional secondary backing is preferably made of tape yarn in both directions. The process includes providing a carpet base having a primary backing penetrated by yarn, applying heat to the underside of the primary backing, extruding a heated sheet of polymer and continuously contacting the heated extruded sheet of polymer with the base. The apparatus includes a source of carpet precursor, a heated cylinder for heating the underside of the carpet, an extruder and a casting roll against which the extruded sheet and heated carpet are pressed.

    Abstract translation: 本公开涉及地毯产品，用于制造地毯的方法以及用于地毯制造过程中的装置。 地毯产品由簇绒聚合物长丝纱制成，其中回丝圈的单根纱线整体熔合，使得地毯抵抗绒毛。 主要的背衬优选在填充方向上是改性的聚丙烯。 此外，主要背衬可以在簇绒之前用聚合物涂覆以将纤维束的内部粘附或整体熔合到主衬里。 可选的辅助衬垫优选地在两个方向上由带状纱线制成。 该方法包括提供具有由纱线渗透的主要背衬的地毯基底，将热量施加到主背衬的下侧，挤出加热的聚合物片材，并将加热的挤出的聚合物片材与基底连续接触。 该设备包括地毯前体源，用于加热地毯下侧的加热缸，挤压机和流延辊，挤压的片材和加热的地毯被挤压在该辊上。

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