公开(公告)号：US11718958B2

公开(公告)日：2023-08-08

申请号：US17178328

申请日：2021-02-18

申请人： Ichikawa Co., Ltd.

发明人： Yuya Takamori ,  Manami Morinaga

IPC分类号： D21F3/02 ,  C08G18/10 ,  C08G18/44 ,  C08G18/48 ,  C08G64/30 ,  C08K5/00 ,  C08K5/053 ,  D21F3/08

CPC分类号： D21F3/0236 ,  C08G18/10 ,  C08G18/44 ,  C08G18/4854 ,  C08G64/305 ,  C08K5/0025 ,  C08K5/053 ,  D21F3/086

摘要： The object of the invention is to provide a shoe press belt which has an excellent strength while the variation in strength among its parts being suppressed, and to provide a method for producing such a shoe press belt.
Provided is a shoe press belt for use in a papermaking machine comprising at least one resin layer, wherein the resin layer comprises a polyurethane resin formed by curing an urethane prepolymer having an isocyanate group with a curing agent having an active hydrogen group, wherein the curing agent comprises one or more polycarbonate diol(s) expressed by the following formulae (1) and (2).

HO-Am-Bn—R1OH  (1)

公开(公告)号：US20210269577A1

公开(公告)日：2021-09-02

申请号：US17178316

申请日：2021-02-18

申请人： Ichikawa Co., Ltd.

发明人： Yuya TAKAMORI ,  Manami MORINAGA

IPC分类号： C08G18/44 ,  C08G18/75 ,  D21F3/08

摘要： The object of the invention is to provide a shoe press belt which has an excellent strength while the variation in strength among its parts being suppressed, and to provide a method for producing such a shoe press belt.
Provided is a shoe press belt for use in a papermaking machine comprising at least one resin layer, wherein the resin layer comprises a polyurethane resin formed by curing a polyurethane prepolymer with a curing agent, wherein the polyurethane prepolymer is obtained by reacting a polyol comprising one or more polycarbonate diol(s) expressed by the following formulae (1) and (2) with aliphatic polyisocyanate.

公开(公告)号：US09771683B2

公开(公告)日：2017-09-26

申请号：US14608660

申请日：2015-01-29

申请人： Ichikawa Co., Ltd.

发明人： Kenji Inoue ,  Ryo Umehara ,  Ai Tamura ,  Yuta Sugawara

IPC分类号： D21F7/08 ,  D21F1/00

CPC分类号： D21F1/0027 ,  D21F7/086

摘要： The object of the present invention is to provide a wet paper web transfer belt wherein the adhesive properties and releasing properties of the wet paper web with the wet paper web contacting surface of conventional wet paper web transfer belts have been further improved and paper robbing and floating edges do not occur.This is achieved by a wet paper web transfer belt in which a polyurethane is integrated with a reinforcing base material comprising a wet paper web-side surface and a machine-side surface, at least the wet paper web-side surface of the reinforcing base material is embedded in the polyurethane, an outer circumferential layer comprising a wet paper web contacting surface is constituted by some of the polyurethane; wherein, at least the outer circumferential layer comprises two different types of fillers including a high-roundness filler with a relatively high roundness and a low-roundness filler with a relatively low roundness.

公开(公告)号：US20170051455A1

公开(公告)日：2017-02-23

申请号：US15237900

申请日：2016-08-16

申请人： Ichikawa Co., Ltd.

发明人： Yuta SUGAWARA ,  Kenji INOUE

IPC分类号： D21F2/00

CPC分类号： D21F2/00 ,  D21F3/0227 ,  D21F7/086

摘要： The object of the present invention is to provide a wet paper web transfer belt with excellent crack resistance in the regions of the wet paper web transfer belt facing the roll edges.This is achieved by an endless wet paper web transfer belt travelling by rotation while being supported by a plurality of rolls in the press part of a papermaking machine; wherein the wet paper web transfer belt has at least an outer circumferential resin layer on the wet paper supporting side, the outer circumferential resin layer comprises roll edge-facing regions positioned to face both edges in the width direction of at least one of the plurality of rolls and a central region positioned between the roll edge-facing regions, the difference in the thickness between the thickness of the roll edge-facing regions and the thickness of the central region is 0.5 mm or less, and the maximum profile valley depth Rv of the outer circumferential surface of the roll edge-facing regions is 40 μm or less.

摘要翻译： 这是通过在造纸机的压榨部分中由多个辊支撑的情况下通过旋转行进的无限湿纸幅转印带来实现的; 其中，所述湿纸幅转印带在所述湿纸支承侧至少具有外周树脂层，所述外周树脂层包括面向所述多个辊状物的至少一个的宽度方向的两边缘 辊和位于辊边缘区域之间的中心区域，辊边缘区域的厚度与中心区域的厚度之间的厚度差为0.5mm以下，最大轮廓谷深度Rv为 辊边缘区域的外周面为40μm以下。

公开(公告)号：US09260819B2

公开(公告)日：2016-02-16

申请号：US14163195

申请日：2014-01-24

申请人： Ichikawa Co., Ltd.

发明人： Takashi Oouchi ,  Shigeyuki Okamoto ,  Yasuhiko Kobayashi ,  Yasuyuki Ogiwara ,  Masashi Kato

IPC分类号： D21F7/08 ,  D03D13/00

CPC分类号： D21F7/08 ,  D03D13/00 ,  D21F7/083

摘要： A felt that further equalizes a pressure state under pressurization by a press so as to smooth the surface of a wet paper web without causing marking on the surface thereof and allow water to be uniformly squeezed out from the wet paper web without crushing the wet paper web is provided by a papermaking press felt wherein a difference between a maximum value and a minimum value of an interval between an upper knuckle portion and an upper knuckle portion, an interval between upper and lower knuckle portions, or an interval between a lower knuckle portion and a lower knuckle portion is arranged to be a value corresponding to 1.0 piece or less of an upper warp yarn in a base fabric.

摘要翻译： 毛毡通过压力机进一步加压加压的状态，使湿纸幅的表面光滑，而不会在表面上产生标记，并且允许水均匀地从湿纸幅挤出而不破坏湿纸幅 由造纸压榨毛毡提供，其中上部关节部分和上部关节部分之间的间隔的最大值和最小值之间的差异，上部和下部关节部分之间的间隔，或下部关节部分和下部关节部分之间的间隔之间的差异 下转向部分被布置为基底织物中的上经纱为1.0片以下的值。

公开(公告)号：US20150218752A1

公开(公告)日：2015-08-06

申请号：US14608660

申请日：2015-01-29

申请人： Ichikawa Co., Ltd.

发明人： Kenji INOUE ,  Ryo Umehara ,  Ai Tamura ,  Yuta Sugawara

IPC分类号： D21F1/00

CPC分类号： D21F1/0027 ,  D21F7/086

摘要： The object of the present invention is to provide a wet paper web transfer belt wherein the adhesive properties and releasing properties of the wet paper web with the wet paper web contacting surface of conventional wet paper web transfer belts have been further improved and paper robbing and floating edges do not occur.This is achieved by a wet paper web transfer belt in which a polyurethane is integrated with a reinforcing base material comprising a wet paper web-side surface and a machine-side surface, at least the wet paper web-side surface of the reinforcing base material is embedded in the polyurethane, an outer circumferential layer comprising a wet paper web contacting surface is constituted by some of the polyurethane; wherein, at least the outer circumferential layer comprises two different types of fillers including a high-roundness filler with a relatively high roundness and a low-roundness filler with a relatively low roundness.

摘要翻译： 本发明的目的是提供一种湿式纸幅转印带，其中湿纸幅与常规湿纸幅转印带的湿纸幅接触表面的粘合性能和脱模性进一步提高，纸张剥皮和漂浮 边缘不会发生。 这通过湿纸传送带实现，其中聚氨酯与包括湿纸幅侧表面和机器侧表面的增强基材一体化，至少加强基材的湿纸幅侧表面 嵌入聚氨酯中，包含湿纸幅接触表面的外周层由一些聚氨酯构成; 其中，至少外周层包括两种不同类型的填料，其包括具有较高圆度的高圆度填料和具有较低圆度的低圆度填料。

公开(公告)号：US20150218751A1

公开(公告)日：2015-08-06

申请号：US14608629

申请日：2015-01-29

申请人： Ichikawa Co., Ltd.

发明人： Kenji INOUE ,  Ryo UMEHARA ,  Ai TAMURA ,  Yuta SUGAWARA

IPC分类号： D21F1/00

CPC分类号： D21F1/0027 ,  D21F2/00 ,  D21F3/0227 ,  D21F7/086

摘要： The object of the present invention is to reduce the wear of the doctor blade applied to the wet paper web transfer belt and the wear of the guide rolls supporting the wet paper web transfer belt while maintaining the wear resistance of the wet paper web contacting surface and the machine contacting surface of the wet paper web transfer belt together with the adhesive and releasing properties of the wet paper web on the wet paper web contacting surface of conventional wet paper web transfer belts.This is achieved by a wet paper web transfer belt in which a polyurethane is integrated with a reinforcing base material comprising a wet paper web-side surface and a machine-side surface, at least the wet paper web-side surface of the reinforcing base material is embedded in the polyurethane, an outer circumferential layer comprising a wet paper web contacting surface is constituted by some of the polyurethane; wherein, at least the outer circumferential layer comprises a spherical filler.

摘要翻译： 本发明的目的是减少施加到湿纸幅转印带上的刮刀的磨损和支撑湿纸幅转印带的引导辊的磨损，同时保持湿纸幅接触表面的耐磨性，以及 湿纸幅转印带的机器接触表面与粘合剂一起，并且在常规湿纸幅转印带的湿纸幅接触表面上释放湿纸幅的特性。 这通过湿纸传送带实现，其中聚氨酯与包括湿纸幅侧表面和机器侧表面的增强基材一体化，至少加强基材的湿纸幅侧表面 嵌入聚氨酯中，包含湿纸幅接触表面的外周层由一些聚氨酯构成; 其中，至少所述外周层包含球形填料。

公开(公告)号：US08815055B2

公开(公告)日：2014-08-26

申请号：US13868161

申请日：2013-04-23

申请人： Ichikawa Co., Ltd.

发明人： Yasuyuki Ogiwara

IPC分类号： D21F11/00

CPC分类号： D21F7/083 ,  D21F7/10 ,  Y10T442/3724

摘要： Press felts for papermaking include a batt fiber layer and a base fabric. The batt fiber layer is integrated into the base fabric. The base fabric includes a ground warp yarn, a ground weft yarn, and an additional warp yarn. The ground warp yarn and the ground weft yarn include monofilament yarns, and the additional warp yarn includes a material different from a material forming the ground warp yarn. The additional warp yarn is arranged so that, when the base fabric is viewed in cross-section in a warp yarn direction, the additional warp yarn ascends toward a wet paper web-side surface of the base fabric and descends toward a roll-side surface of the base fabric, relative to the at least one ground warp yarn.

摘要翻译： 用于造纸的压榨毛毯包括絮垫纤维层和基底织物。 絮垫纤维层被集成到基底织物中。 基布包括地经纱，地纬纱和附加经纱。 地面经纱和地纬纱包括单丝纱，另外的经纱包括与形成地面经纱的材料不同的材料。 附加经纱被布置成使得当在经纱方向的横截面上观察基底织物时，附加的经纱向着基底织物的湿纸幅侧表面上升并且朝向辊侧表面下降 的基底织物相对于至少一个地面经纱。

公开(公告)号：US20040266298A1

公开(公告)日：2004-12-30

申请号：US10835047

申请日：2004-04-29

申请人： Ichikawa Co., Ltd.

发明人： Yoshiaki Ito

IPC分类号： D04H001/08

CPC分类号： D21F7/083 ,  Y10T442/3472 ,  Y10T442/348 ,  Y10T442/3504 ,  Y10T442/3528 ,  Y10T442/3537 ,  Y10T442/3707 ,  Y10T442/3724 ,  Y10T442/3732 ,  Y10T442/56 ,  Y10T442/59 ,  Y10T442/659 ,  Y10T442/662

摘要： This invention relates to a papermaking felt which makes it possible to increase the proportion of the base body thereby preventing flattening without costing extra production man-hour, and to maintain the functions such as the water drainage, wet paper smoothening capability, and wet paper web transport capability throughout its entire use period by. The papermaking felt composed of a base body and a batt fiber layer is characterized in that one or more thicknesses of endless base bodies are disposed on the felt back-face side and one or more thicknesses of open-ended base bodies is annularly wound not less than one turn on the felt front-face side.

摘要翻译： 本发明涉及一种造纸毡，其可以增加基体的比例，从而防止扁平化，而不需要额外的生产工时，并且保持排水，湿纸平滑化能力和湿纸幅等功能 运输能力在整个使用期间。 由基体和絮垫纤维层构成的造纸毡的特征在于，在毛毡背面侧设置一个或多个环形基体的厚度，并且一个或多个开口基体的厚度不小于环形 比感觉到的正面一面转一圈。

公开(公告)号：US20040200594A1

公开(公告)日：2004-10-14

申请号：US10800936

申请日：2004-03-15

申请人： Ichikawa Co., Ltd.

发明人： Takashi Ouchi ,  Kazumasa Watanabe

IPC分类号： D04H001/08

CPC分类号： D21F7/083 ,  D21F1/0027 ,  D21F7/08 ,  Y10S162/90 ,  Y10T442/2484 ,  Y10T442/50

摘要： Papermaking felt containing a hydrophilic urethane resin that can maintain functions such as water drainage, wet-paper smoothness, and wet-paper transportability by imparting a hydrophilic property to the papermaking felt thereby preventing the deposition and accumulation of adhesive contaminants without impairing the compression recoverability of the felt thus sustaining its antifouling capability.

摘要翻译： 含有亲水性聚氨酯树脂的造纸毡，其可以通过赋予造纸毡以亲水性赋予维持排水性，湿纸平滑性和湿纸输送性等功能，从而防止粘合剂污染物的沉积和积聚而不损害压缩可回收性 因此，毛毡具有防污性能。