公开(公告)号：US1786681A

公开(公告)日：1930-12-30

申请号：US12623026

申请日：1926-07-31

申请人： MEAD PULP & PAPER COMPANY

发明人： JOHN TRAQUAIR

IPC分类号： D21H23/28

CPC分类号： D21H23/28

公开(公告)号：US20240133118A1

公开(公告)日：2024-04-25

申请号：US18548368

申请日：2022-03-08

申请人： Stora Enso OYJ

发明人： Isto Heiskanen ,  Kaj Backfolk ,  Katja Lyytikäinen ,  Anders Moberg ,  Jukka Kankkunen

IPC分类号： D21H11/18 ,  D21F1/80 ,  D21F9/00 ,  D21H23/28 ,  D21H23/48 ,  D21H27/30

CPC分类号： D21H11/18 ,  D21F1/80 ,  D21F9/003 ,  D21H23/28 ,  D21H23/48 ,  D21H27/30

摘要： The present invention relates to a method for manufacturing a barrier film comprising highly refined cellulose, said method comprising: a) providing a highly refined cellulose pulp suspension comprising highly refined cellulose pulp having a Schopper-Riegler (SR) number in the range of 40-98 as determined by standard ISO 5267-1 and a content of fibers having a length >0.2 mm of at least 7 million fibers per gram based on dry weight, at a consistency in the range of 0.1-1.5 wt %; b) forming a web of the highly refined cellulose pulp suspension and dewatering the web in a paper machine former on a wire to a consistency of at least 5 wt % to obtain a substrate web, wherein the white water removed from the pulp contains 2-25 wt %, preferably 5-20 wt % and more preferably at least 5-15 wt % of the solids of the highly refined cellulose pulp suspension provided in step a); c) optionally further dewatering and optionally drying the substrate web; d) coating the optionally further dewatered and optionally dried substrate web with a coating suspension comprising cellulose fines or microfibrillated cellulose to obtain a coated web; and e) dewatering and/or drying the coated web to obtain a barrier film comprising highly refined cellulose.

公开(公告)号：US11834793B2

公开(公告)日：2023-12-05

申请号：US16966527

申请日：2019-01-31

申请人： Stora Enso OYJ

发明人： Kaj Backfolk ,  Isto Heiskanen ,  Esa Saukkonen ,  Jukka Kankkunen ,  Anna Nyberg Zetterlund ,  Jan Lif

IPC分类号： D21H23/28 ,  D21H11/08 ,  D21H23/48 ,  D21H23/50 ,  D21H23/52 ,  D21H19/40 ,  D21H19/66 ,  D21H11/18

CPC分类号： D21H23/28 ,  D21H11/18 ,  D21H19/40 ,  D21H19/66 ,  D21H23/48 ,  D21H23/50 ,  D21H23/52

摘要： The present invention relates to a process for manufacturing a film comprising high amounts of microfibrillated cellulose (MFC), having haptic properties. According to the present invention, a wet web comprising MFC is formed, followed by addition of particles having an average diameter of at least 1 μm to the wet web, followed by dewatering and/or drying. The wet web may be formed for example by wet laid or cast forming methods. The particles may be added to the wet web for example by cast coating or spraying.

公开(公告)号：US20230313467A1

公开(公告)日：2023-10-05

申请号：US18004445

申请日：2021-07-07

申请人： ECOLAB USA INC.

发明人： David Steven JORDAN ,  Heqing HUANG ,  Weiguo CHENG ,  Mingli WEI ,  Mei LIU ,  William Arthur GRANGER

IPC分类号： D21H21/18 ,  D21H23/28 ,  D21H17/42 ,  D21H23/50 ,  D21H27/30 ,  D21H17/44

CPC分类号： D21H21/18 ,  D21H17/42 ,  D21H17/44 ,  D21H23/28 ,  D21H23/50 ,  D21H27/30

摘要： The present disclosure provides methods and compositions for strengthening paper. The methods may include a step of spraying an anionic polymer onto a paper sheet to increase the strength of the paper sheet. The anionic polymer may have amino groups, amide groups, or a combination of amino groups and amide groups. These groups may be functionalized with an aldehyde. Methods may also include a step of adding a wet end composition to a wet end of the papermaking process.

公开(公告)号：US20180043644A1

公开(公告)日：2018-02-15

申请号：US15686287

申请日：2017-08-25

申请人： SEIKO EPSON CORPORATION

发明人： Naotaka HIGUCHI

IPC分类号： B29D7/01 ,  B29C43/52 ,  B29C65/02 ,  B29C69/00 ,  B29C43/32 ,  D21F9/00 ,  B29C43/34 ,  D21H23/28 ,  B29K1/00 ,  B29K105/00 ,  B29K105/26 ,  D21B1/06

CPC分类号： B29D7/01 ,  B29C43/32 ,  B29C43/34 ,  B29C43/52 ,  B29C65/02 ,  B29C69/001 ,  B29C2043/3416 ,  B29K2001/00 ,  B29K2105/251 ,  B29K2105/26 ,  D21B1/06 ,  D21F9/00 ,  D21H23/28

摘要： A sheet manufacturing apparatus includes an impeller mill defibrating, in a dry process, a raw material containing a fiber, a mixer mixing a defibrated material and a resin, using an air stream to produce a mixture of the defibrated material and the resin, a sieve having an opening through which the mixture passes, a belt, a heater, and a nozzle. The mixture is accumulated on an upper side of the belt to form a web. The heater heats the web to form a sheet so that the fiber is bonded by the resin. The nozzle is arranged between the belt and the heater and applies a liquid to a partial portion of the web so that bonding between the fiber and the resin in a first portion of the sheet is weaker than bonding between the fiber and the resin in a second portion of the sheet.

公开(公告)号：US20160288435A1

公开(公告)日：2016-10-06

申请号：US15073953

申请日：2016-03-18

申请人： SEIKO EPSON CORPORATION

发明人： Naotaka HIGUCHI

IPC分类号： B29D7/01 ,  B29C43/34 ,  B29C65/02 ,  B29C43/32 ,  B29C69/00 ,  D21B1/06 ,  B29C43/52

CPC分类号： B29D7/01 ,  B29C43/32 ,  B29C43/34 ,  B29C43/52 ,  B29C65/02 ,  B29C69/001 ,  B29C2043/3416 ,  B29K2001/00 ,  B29K2105/251 ,  B29K2105/26 ,  D21B1/06 ,  D21F9/00 ,  D21H23/28

摘要： A sheet manufacturing apparatus includes a defibrating unit configured to defibrate in an atmosphere a raw material that contains a fiber, a mixing unit configured to mix in the atmosphere a defibrated material that the defibrating unit has defibrated and a resin, an accumulating unit configured to accumulate a mixture of the defibrated material and the resin that the mixing unit has mixed, a liquid application unit configured to apply a liquid to a portion of an accumulation of the mixture that the accumulating unit has accumulated, and a heating unit configured to form a sheet by heating the accumulation to which the liquid application unit has applied the liquid.

摘要翻译： 一种片材制造装置，包括：解调单元，被配置为在气氛中除去含有纤维的原料，混合单元，其构造成在大气中混合除颤单元已经脱纤维的解纤化材料和树脂;累积单元， 所述混合单元混合的所述解纤维材料和所述树脂的混合物;液体施加单元，被构造成将液体施加到所述积聚单元积聚的所述混合物的积聚部分;以及加热单元，其被构造成形成片材 通过加热液体施加单元施加液体的积聚。

公开(公告)号：US20080314544A1

公开(公告)日：2008-12-25

申请号：US11658691

申请日：2005-07-25

申请人： Wilhelm Gansberger ,  Martin Vogt ,  Georg Bacovsky

发明人： Wilhelm Gansberger ,  Martin Vogt ,  Georg Bacovsky

IPC分类号： D21F3/08

CPC分类号： D21H23/28 ,  D21F3/02 ,  D21F3/045 ,  D21F5/04 ,  D21G9/009 ,  D21H17/28 ,  D21H23/56 ,  D21H23/58 ,  D21H23/72

摘要： Disclosed is a machine for producing a paper web, cardboard web, or other fiber web (1), comprising a press section (2) which is provided with at least one press nip (5) formed by two squeeze rollers (3, 4) and in which a device (6, 7) for applying a medium, particularly starch, is disposed. The fiber web (1) can be guided through the press nip (5) along with a band (8). The inventive machine is characterized in that the device (6, 7) rests against at least one of the squeeze rollers (3, 4) for indirectly applying the medium to the fiber web (1).

摘要翻译： 公开了一种用于生产纸幅，纸板腹板或其它纤维网（1）的机器，其包括压榨部分（2），所述压榨部分设置有由两个挤压辊（3,4）形成的至少一个挤压压区（5） 并且其中设置用于施加介质，特别是淀粉的装置（6,7）。 纤维网（1）可以与带（8）一起被引导通过压榨压区（5）。 本发明的机器的特征在于，装置（6,7）靠在挤压辊（3,4）中的至少一个上，以间接地将介质施加到纤维网（1）上。

公开(公告)号：US07175739B2

公开(公告)日：2007-02-13

申请号：US11159293

申请日：2005-06-23

申请人： Thomas Attenberger ,  Gerhard Stenzel ,  Ralf Soltau ,  Manfred Hutmann

发明人： Thomas Attenberger ,  Gerhard Stenzel ,  Ralf Soltau ,  Manfred Hutmann

IPC分类号： D21H19/00 ,  D21H19/36 ,  D21H21/30 ,  D21H21/40

CPC分类号： D21H23/28 ,  D21H21/42 ,  D21H21/48 ,  D21H23/50 ,  D21H23/78

摘要： A method and apparatus for incorporating feature substances into a still moist but already sufficiently consolidated paper web provides for directing a feature substance suspension onto the surface of the paper web as a laminar jet with low jet pressure. A special pressure control circuit ensures that the jet pressure is always constant regardless of the number of parallel feature substance suspension jets directed onto the paper web. This makes it possible to incorporate a great variety of line codings in paper under the same process conditions without any visible changes in fiber structure occurring in the paper.

摘要翻译： 用于将特征物质并入到仍然湿润而已经充分整合的纸幅中的方法和装置提供了将特征物质悬浮液作为低射流压力的层流引导到纸幅的表面上。 特殊的压力控制电路确保喷射压力始终是恒定的，而不管引导到纸幅上的平行特征物质悬浮射流的数量如何。 这使得可以在相同的工艺条件下在纸中掺入各种各样的线编码，而在纸中发生的纤维结构没有任何可见的变化。

公开(公告)号：US07011729B2

公开(公告)日：2006-03-14

申请号：US10712699

申请日：2003-11-12

申请人： Philip Strong ,  Brian Edward Ireland ,  John Gregory Kinney

发明人： Philip Strong ,  Brian Edward Ireland ,  John Gregory Kinney

IPC分类号： D21H11/00

CPC分类号： D21H17/72 ,  D21H11/00 ,  D21H17/28 ,  D21H23/28

摘要： The invention relates to a starch and fiber mixture, and the application of a starch and fiber mixture in paper manufacturing. The starch and fiber mixture is applied to a paper mat, after the paper mat is formed. The starch and fiber mixture may be obtained by the selective filtering of white water from the papermaking process, particularly by use of a pressure screen.

摘要翻译： 本发明涉及淀粉和纤维混合物，以及淀粉和纤维混合物在造纸中的应用。 在形成纸垫之后，将淀粉和纤维混合物施加到纸垫上。 淀粉和纤维混合物可以通过从造纸过程中选择性过滤白水而获得，特别是通过使用压力筛。

公开(公告)号：US20050142348A1

公开(公告)日：2005-06-30

申请号：US11062980

申请日：2005-02-22

申请人： Richard Kajander ,  Alan Jaffee ,  Glenda Bennett

发明人： Richard Kajander ,  Alan Jaffee ,  Glenda Bennett

IPC分类号： B32B13/14 ,  D21H13/40 ,  D21H19/00 ,  D21H21/56 ,  D21H23/28 ,  B32B3/26

CPC分类号： B32B13/14 ,  B32B5/022 ,  B32B5/245 ,  B32B17/02 ,  B32B41/00 ,  B32B2038/0084 ,  B32B2260/00 ,  B32B2307/3065 ,  B32B2315/085 ,  B32B2471/04 ,  B32B2607/00 ,  D21H13/40 ,  D21H21/56 ,  D21H23/28 ,  Y10T428/249953 ,  Y10T428/249981 ,  Y10T428/24999 ,  Y10T442/604 ,  Y10T442/647 ,  Y10T442/652

摘要： A new foam coated nonwoven fibrous mat having properties particularly suited for a facer on gypsum wallboard, laminates made therefrom and the method of making the mat is disclosed. The mat preferably contains a major portion of glass fibers and a minor portion of a resinous binder. The foam coating is permeable and reduces fiber dust and abrasion experienced in the past with relatively coarse, relatively inexpensive glass fibers in the mat. Contrary to previous methods, the foam coated fibrous mat is made in-line on a wet mat forming production line by applying a wet foam binder onto a wet, fibrous web followed by drying and curing in-line.

摘要翻译： 公开了一种新型泡沫涂布的非织造纤维毡，其具有特别适用于石膏墙板上的表面的特性，由其制成的层压体和制造垫的方法。 垫优选含有玻璃纤维的主要部分和少量的树脂粘合剂。 泡沫涂层是可渗透的，并且减少了纤维尘埃和过去磨损，在垫中具有相对较粗的相对便宜的玻璃纤维。 与先前的方法相反，泡沫涂覆的纤维垫通过将湿泡沫粘合剂施加到湿的纤维网上，随后在线干燥和固化而在湿垫成型生产线上在线制成。