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公开(公告)号：US20230265609A1
公开(公告)日：2023-08-24
申请号：US18098490
申请日：2023-01-18
申请人： GPCP IP Holdings LLC
发明人： Jeffrey A. Lee , Kevin M. Holtman
CPC分类号： D21B1/026 , D21C9/1068 , D21C9/1005 , D21C9/163 , D21C3/026 , D21H11/02
摘要： A method of producing high yield chemical cellulosic pulp includes: (a) chemically pulping wood chips to separate lignin and liberate cellulosic fibers from the wood chips to generate a cellulosic pulp; (b) washing and screening the pulp of step (a); (c) pre-treating the washed pulp with oxygen; (d) optionally washing the treated pulp of step (c); (e) bleaching the pre-treated pulp in an extended duration oxidative bleaching stage; (f) optionally washing the bleached pulp of step (e); and (g) optionally further oxidatively or reductively bleaching the bleached pulp in a shorter duration bleaching stage, wherein the bleached pulp is produced at a yield of greater than 60% based on the weight of the pulped wood chips (dry basis).
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公开(公告)号：US11673172B2
公开(公告)日：2023-06-13
申请号：US16760107
申请日：2018-07-26
申请人： Unicharm Corporation
摘要： Provided is a method that, when pulp fibers are recovered from used absorbent articles that have been put into collection bags, makes it possible to safely and sanitarily crush the used absorbent articles while suppressing costs. A method for recovering pulp fibers from used absorbent articles, the method comprising: a crushing step (S12) in which collection bags (A) in which used absorbent articles have been sealed are put into a container (65), the collection bags in the container are transferred to a crushing device (12) that communicates with the container, and, bag by bag, the crushing device crushes the used absorbent articles in the collections bags in a deactivating aqueous solution; and a separation step (S13) in which the pulp fibers, a highly water-absorbent polymer, and the deactivating aqueous solution are separated from the crushed product and deactivating aqueous solution obtained in the crushing step.
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公开(公告)号：US20180202102A1
公开(公告)日：2018-07-19
申请号：US15744461
申请日：2016-07-15
发明人： Kaiyuan Yang , Mark B. Majors , Udaykumar Raval , Anita Neidert , Jack Smid
CPC分类号： D21C9/08 , D06B3/02 , D06B2700/36 , D21B1/026 , D21C9/02
摘要： A method (10) for cleaning fibers from a contaminated article is disclosed. The method (10) can include pulping (20) a contaminated article to separate the fibers or filaments from the contaminated article in a first solution to provide dissociated pulped fibers. The method (10) can also include washing (26) the dissociated pulped fibers by forming a suspension comprising the dissociated pulped fibers from the contaminated article and a detergent, applying a magnetic field to the suspension, and mixing the suspension to wash the dissociated pulped fibers while applying the magnetic field to the suspension thereby forming washed pulped fibers. Contaminates can be removed from the suspension while washing (26) the dissociated pulped fibers. The washed pulped fibers can be rinsed and dried to provide clean fibers.
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公开(公告)号：US20170275820A1
公开(公告)日：2017-09-28
申请号：US15447843
申请日：2017-03-02
发明人： Osman POLAT , Dale Gary KAVALEW
摘要： A process for manufacturing a web material is disclosed. The process generally provides the steps of: a. providing a pulp material comprising fibers and vessels; b. separating said vessels from said fibers in said pulp material to form a slurry having at least about 7 percent less vessels per meter than said pulp material; and c. processing said slurry to form said web material.
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公开(公告)号：US09562322B1
公开(公告)日：2017-02-07
申请号：US14323061
申请日：2014-07-03
申请人： Bouldin Corporation
发明人： Robert S. Post
摘要： A fibrous material reprocessing apparatus separates a cellulose pulp material into a fibrous material stream and a remainder stream. The fibrous material stream is treated in a grinder to reduce the size of the fibrous material. The reduced size fibrous material is then recombined with the remainder stream.
摘要翻译： 纤维材料再处理设备将纤维素纸浆材料分离成纤维材料流和剩余流。 在研磨机中处理纤维材料流以减小纤维材料的尺寸。 然后将减小尺寸的纤维材料与剩余物流重新组合。
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6.发明申请公开(公告)号：US20120153058A1
公开(公告)日：2012-06-21
申请号：US13353785
申请日：2012-01-19
申请人： Michio NISHI , Takehiro TANAKA , Shizuo TAIRA
发明人： Michio NISHI , Takehiro TANAKA , Shizuo TAIRA
IPC分类号： B02C21/00
CPC分类号： D21B1/026 , B03B9/065 , Y02W30/521 , Y02W30/58
摘要： There are provided a method of recovering a base paper for gypsum board for continuously and efficiently recovering a base paper for gypsum board from a waste material of gypsum board including a gypsum core and the base paper for gypsum board adhering thereto. The method of recovering a base paper for gypsum board includes steps of breaking the waste material of gypsum board, separating a gypsum component and a paper piece of the base paper for gypsum board from the broken waste material of gypsum board, and washing the separated paper piece with water using a rotary drum-type washing device so as to eliminate a gypsum component adhering to the paper piece.
摘要翻译： 提供了一种回收用于石膏板的原纸的方法，用于从包括石膏芯的石膏板的废料和用于石膏板的原纸粘附到石膏板的废料上连续有效地回收用于石膏板的原纸。 回收石膏板原纸的方法包括：从破碎的石膏板废料中分解石膏板的废料，石膏组分和石膏板原纸的纸片，分离纸 使用旋转滚筒式洗涤装置将其与水一块，以消除粘附在纸张上的石膏成分。
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7.发明申请公开(公告)号：US20070145621A1
公开(公告)日：2007-06-28
申请号：US10583881
申请日：2004-12-06
申请人： Michio Nishi , Takehiro Tanaka , Shizuo Taira
发明人： Michio Nishi , Takehiro Tanaka , Shizuo Taira
CPC分类号： D21B1/026 , B03B9/065 , Y02W30/521 , Y02W30/58
摘要： There are provided a method of recovering a base paper for gypsum board for continuously and efficiently recovering a base paper for gypsum board from a waste material of gypsum board including a gypsum core and the base paper for gypsum board adhering thereto. The method of recovering a base paper for gypsum board includes steps of breaking the waste material of gypsum board, separating a gypsum component and a paper piece of the base paper for gypsum board from the broken waste material of gypsum board, and washing the separated paper piece with water using a rotary drum-type washing device so as to eliminate a gypsum component adhering to the paper piece.
摘要翻译： 提供了一种回收用于石膏板的原纸的方法，用于从包括石膏芯的石膏板的废料和用于石膏板的原纸粘附到石膏板的废料上连续有效地回收用于石膏板的原纸。 回收石膏板原纸的方法包括：从破碎的石膏板废料中分解石膏板的废料，石膏组分和石膏板原纸的纸片，分离纸 使用旋转滚筒式洗涤装置将其与水一块，以消除粘附在纸张上的石膏成分。
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公开(公告)号：US06988682B2
公开(公告)日：2006-01-24
申请号：US10276946
申请日：2001-05-22
申请人： Jouko Hautala
发明人： Jouko Hautala
IPC分类号： B02C23/36
CPC分类号： D21C5/02 , B03B9/061 , D21B1/026 , D21B1/32 , Y02W30/646 , Y02W30/648
摘要： Waste that contains fibers and combustible material is slushed in a continuous-operation high-consistency pulper (10) to suspend in water the fibers contained in the waste. From the pulper (10) are discharged substantially continuously a fiber suspension (P1) through a screen plate; and non-defibrable material (R1) by means of a mechanical transfer device (22). The fiber suspension (P1) is sorted and cleaned for use as raw material in paper or board. The non-defibrable material (R1) and the rejects (R2-R4) separated from the fiber suspension (P1) in the sorting and cleaning stages are used as fuel in energy production and/or utilized as raw material.
摘要翻译： 含有纤维和可燃材料的废物在连续操作的高浓度碎浆机（10）中被冲洗以在废水中包含的纤维悬浮在水中。 从碎浆机（10）通过筛板基本上连续排出纤维悬浮液（P 1 SUB）; 和不可除纤维材料（R 1 N 1）。 纤维悬浮液（P＆lt; 1＆gt;）被分类和清洁以用作纸或纸板中的原料。 与纤维悬浮液分离的不可除纤维材料（R 1 N 1）和废弃物（R 2→R 4→S 4） 在分选和清洗阶段用作能量生产中的燃料和/或用作原料。
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9.发明授权公开(公告)号：US06413364B1
公开(公告)日：2002-07-02
申请号：US09743055
申请日：2001-01-03
申请人： Malcolm Sandison
发明人： Malcolm Sandison
IPC分类号： D21B132
摘要： The invention provides a process and apparatus for the treatment and recovery of fiberboard and particle board waste. Waste fiberboard and particle board is fed into a steam chamber and steam treated with steam under pressure from a steam generator. When the steam treatment is completed any effluent and excess steam are evacuated from the chamber and the steam treated waste is passed through a rotating trommel. Woodfibers and woodchips pass through the screens of the trommel and are collected for drying and further processing. Waste material, such as melamine coatings, passes through the trommel for collection and disposal. The collected woodfiber and woodchips can be processed for reuse in paper, cardboard or particle board manufacture or as mulch and other ground cover material.
摘要翻译： 本发明提供了用于处理和回收纤维板和刨花板废物的方法和装置。 将废纤维板和刨花板送入蒸汽室，并在蒸汽发生器的压力下用蒸汽进行蒸汽处理。 当蒸汽处理完成时，任何流出物和多余的蒸汽都从室中排出，蒸汽处理的废物通过旋转筛选机。 木质纤维和木片通过筛选机的筛网，并被收集用于干燥和进一步加工。 诸如三聚氰胺涂层之类的废料通过转筛来收集和处置。 收集的木纤维和木片可以在纸，纸板或刨花板制造中或作为覆盖物和其他地面覆盖材料进行处理。
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10.发明授权Floor absorbent granular product comprising kaokin clay and cellulose fibers 失效包含高岭土和纤维素纤维的地板吸收性粒状产品公开(公告)号：US06214465B1
公开(公告)日：2001-04-10
申请号：US09357287
申请日：1999-07-20
IPC分类号： B32B516
CPC分类号： C05D3/02 , A01K1/0154 , A01K1/0155 , C05D9/00 , C05G3/0047 , C05G3/04 , D21B1/026 , D21B1/32 , D21B1/38 , D21C5/02 , D21F1/66 , Y02W30/646 , Y02W30/648 , Y10T428/2982 , Y10T428/31721 , C05F9/00 , C05F11/00
摘要： Granular absorbent products with low amounts of paper fiber are described. The absorbent products are made from recycled paper and include less than about 10% of paper fibers having a length sufficient to be retained on a 100 mesh screen. A process for making such granular absorbent products is also provided. The granular absorbents are useful for absorbing liquids spilled on the floor, and are crushable when walked on to provide greater resistance to slipping, and yet have a high resistance to attrition.
摘要翻译： 描述了具有少量纸纤维的颗粒吸收产品。 吸收产品由再生纸制成，包括少于约10％的长度足以保留在100目筛上的纸纤维。 还提供了制备这种颗粒状吸收产品的方法。 颗粒状吸收剂可用于吸收溅在地板上的液体，并且在走路时可以挤压，以提供更大的滑动阻力，并且具有高耐磨性。
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