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217 条记录 (耗时 0.037 秒)

    RECYCLE PULP COMPRISING CELLULOSE ACETATE
    21.
    发明申请
    RECYCLE PULP COMPRISING CELLULOSE ACETATE 审中-公开

    公开(公告)号：US20200063366A1

    公开(公告)日：2020-02-27

    申请号：US16522973

    申请日：2019-07-26

    申请人： Eastman Chemical Company

    发明人： Kenny Randolph Parker ,  Charles Stuart Everett ,  Melvin Glenn Mitchell

    IPC分类号： D21H15/10 ,  D21H11/14 ,  D21H11/20 ,  D21H15/04

    摘要： A recycled cellulose pulp composition is provided which comprises recycled cellulosic fibers and cellulose ester staple fibers. A wet-laid fibrous product is also provided which comprises recycled cellulosic fibers and cellulose ester staple fibers. A bailed article is also provided that comprises recycled cellulosic fibers and cellulose ester staple fibers. In embodiments, the recycled cellulosic fibers are present in an amount of 50 wt % or more, based on the total dry weight of fibers, and the cellulose ester staple fibers are present in an amount sufficient to increase the Canadian standard freeness (CSF) of the composition by 5% or more compared to a 100 wt % cellulosic fiber pulp composition processed under similar conditions.

    BALE OF VIRGIN CELLULOSE AND CELLULOSE ESTER
    22.
    发明申请
    BALE OF VIRGIN CELLULOSE AND CELLULOSE ESTER 审中-公开

    公开(公告)号：US20200063363A1

    公开(公告)日：2020-02-27

    申请号：US16522961

    申请日：2019-07-26

    申请人： Eastman Chemical Company

    发明人： Charles Stuart Everett ,  Melvin Glenn Mitchell ,  Kenny Randolph Parker

    IPC分类号： D21H15/10 ,  D21H15/04 ,  D21H11/20 ,  D21B1/34

    摘要： A bale of sheets made of virgin cellulose fibers and cellulose ester (CE) staple fibers can be fed to a hydropulper. The CE staple fibers have: i. a denier per filament (DPF) of less than 3, or ii. a cut length of less than 6 mm, or iii. crimping, or iv. a combination of any two or more of (i)-(iii). The bales can be fed and dropped in as entire bales to a hydropulper, or a blend tank directly or indirectly in fluid communication with a hydropulper, using the same feed system employed for feeding cellulose to the hydopulper and avoiding having to defiberize by pulling or drawing fibers from a box container into a hydropulper.

    HIGH BULK TISSUE COMPRISING CROSS-LINKED FIBERS
    25.
    发明申请
    HIGH BULK TISSUE COMPRISING CROSS-LINKED FIBERS 审中-公开

    公开(公告)号：US20190226147A1

    公开(公告)日：2019-07-25

    申请号：US16332073

    申请日：2018-01-25

    申请人： Kimberly-Clark Worldwide, Inc.

    发明人： Michael Andrew Zawadzki ,  Mike Thomas Goulet ,  Donald Eugene Waldroup ,  Cathleen Mae Uttecht ,  Stephen Michael Lindsay

    IPC分类号： D21H11/20 ,  D21C9/00 ,  D21H27/00 ,  D21F1/00 ,  D21F5/18 ,  D21F11/00 ,  D21H15/10 ,  B31F1/12

    摘要： The present application relates to a cross-linked fiber and more specifically to fibers that have been subjected to cold caustic extraction (at less than 60° C.) to reduce the hemicellulose content of the fibers by at least 50% and then cross-linked with a cross-linking agent that is curable at a modest temperature, such as less than 160° C. The treated cross-linked fibers preferably have a hemicellulose content that is less than 5% by weight of the fiber. Preferable cross-linking agents are polyamide-epichlorohydrin (PAE) resins, polyamide-polyamine-epichlorohydrin (PPE) resins, and polydiallylamine-epichlorohydrin resins. The cross-linked fibers are readily dispersible in water even without fiberization and generally form webs and products having relatively few knits or knots. As such, the cross-linked fibers of the present invention are well suited for use in the manufacture of tissue webs and products, particularly wet-laid tissue webs and products.

    Elastic bicomponent and biconstituent fibers, and methods of making cellulosic structures from the same
    29.
    发明申请
    Elastic bicomponent and biconstituent fibers, and methods of making cellulosic structures from the same 审中-公开
    弹性双组分和双成分纤维，以及从其制备纤维素结构的方法

    公开(公告)号：US20050061456A1

    公开(公告)日：2005-03-24

    申请号：US10979715

    申请日：2004-11-02

    申请人： Ashish Sen ,  John Klier ,  Rexford Maugans ,  Kenneth Stewart

    发明人： Ashish Sen ,  John Klier ,  Rexford Maugans ,  Kenneth Stewart

    IPC分类号： D01F6/46 ,  D01F8/06 ,  D04H1/42 ,  D04H1/54 ,  D21H13/14 ,  D21H13/20 ,  D21H15/10 ,  D21C9/00

    CPC分类号： D04H1/54 ,  D01F6/46 ,  D01F8/06 ,  D04H1/4209 ,  D04H1/425 ,  D04H1/4258 ,  D04H1/4266 ,  D04H1/4291 ,  D04H1/4382 ,  D21H13/14 ,  D21H13/20 ,  D21H15/10 ,  Y10T428/29 ,  Y10T428/2909 ,  Y10T428/2924 ,  Y10T428/2929 ,  Y10T428/2931 ,  Y10T428/2967

    摘要： The elasticity of elastic, absorbent structures, e.g., diapers, is improved without a significant compromise of the absorbency of the structure by the use of bicomponent and/or biconstituent elastic fibers. The absorbent structures typically comprise a staple fiber, e.g., cellulose fibers, and a bicomponent and/or a biconstituent elastic. The bicomponent fiber typically has a core/sheath construction. The core comprises an elastic thermoplastic elastomer, preferably a TPU, and the sheath comprises a homogeneously branched polyolefin, preferably a homogeneously branched substantially linear ethylene polymer. In various embodiments of the invention, the elasticity is improved by preparation techniques that enhance the ratio of elastic fiber: cellulose fiber bonding versus cellulose fiber:cellulose fiber bonding. These techniques include wet and dry high intensity agitation of the elastic fibers prior to mixing with the cellulose fibers, deactivation of the hydrogen bonding between cellulose fibers, and grafting the elastic fiber with a polar group containing compound, e.g. maleic anhydride.

    摘要翻译： 通过使用双组分和/或双成分弹性纤维，弹性吸收结构例如尿布的弹性得到改善，而不会显着地损害结构的吸收性。 吸收结构通常包含短纤维，例如纤维素纤维，以及双组分和/或双成分弹性体。 双组分纤维通常具有芯/鞘结构。 芯包括弹性热塑性弹性体，优选TPU，并且护套包含均匀支化的聚烯烃，优选均匀支化的基本线性的乙烯聚合物。 在本发明的各种实施方案中，通过增加弹性纤维与纤维素纤维之间的纤维素纤维粘合与纤维素纤维粘结的比例的制备技术来提高弹性。 这些技术包括在与纤维素纤维混合之前的弹性纤维的湿和干高强度搅拌，纤维素纤维之间的氢键失活，以及用含极性基团的化合物接枝弹性纤维。 马来酸酐。

    Tissue products having reduced lint and slough
    30.
    发明授权
    Tissue products having reduced lint and slough 有权
    组织产品具有减少的绒毛和脱落

    公开(公告)号：US06861380B2

    公开(公告)日：2005-03-01

    申请号：US10289129

    申请日：2002-11-06

    申请人： Gil Bernard Didier Garnier ,  Sheng-Hsin Hu

    发明人： Gil Bernard Didier Garnier ,  Sheng-Hsin Hu

    IPC分类号： D21H15/10 ,  D21H27/38 ,  B32B21/10

    CPC分类号： D21H27/38 ,  D21H15/10 ,  Y10T442/60 ,  Y10T442/637 ,  Y10T442/641 ,  Y10T442/659 ,  Y10T442/664 ,  Y10T442/695 ,  Y10T442/697

    摘要： A tissue product containing a multi-layered paper web that has at least one layer formed from a blend of pulp fibers and synthetic fibers is provided. By containing at least one layer of synthetic and pulp fibers, it has been discovered that lint and slough of a tissue product formed according to the present invention can be substantially reduced. In addition, by limiting the amount and layers to which the synthetic fibers are applied, the increase in hydrophobicity and cost of the tissue product may be minimized, while still achieving the desired reduction in lint and slough. In some embodiments, the tendency of the synthetic fibers to sink or float in the fibrous furnish may be minimized to enhance processability by selecting certain types of synthetic fibers, e.g., those with a certain density imbalance.

    摘要翻译： 提供了一种包含多层纸幅的纸制品，其具有由纸浆纤维和合成纤维的混合物形成的至少一层。 通过含有至少一层合成纤维和纸浆纤维，已经发现可以显着降低根据本发明形成的纸巾产品的绒毛和脱落。 此外，通过限制施用合成纤维的量和层，可以使组织产品的疏水性和成本的增加最小化，同时仍然实现所需的棉绒和脱毛减少。 在一些实施方案中，可以通过选择某些类型的合成纤维（例如具有一定密度不平衡的合成纤维）来使合成纤维沉降或漂浮在纤维配料中的趋势最小化以提高加工性能。