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1. 发明授权

US06977028B2 Method of drying a web 有权
标题翻译：干燥网的方法
公开(公告)号：US06977028B2
公开(公告)日：2005-12-20
申请号：US10615308
申请日：2003-07-08
申请人： Russell F. Ross , Jark C. Lau
发明人： Russell F. Ross , Jark C. Lau
IPC分类号： D21F5/18 , D21F11/00
CPC分类号： D21F5/044 , D21F5/182 , F26B13/16 , F26B21/10
摘要： A method of drying a paper web is provided. The method utilizes a dryer, such as a through-dryer, having a first dryer section and a second dryer section. Within the first dryer section, a relatively wet paper web is dried at an elevated temperature, such as between about 400° F. to about 500° F. After being dried by the first dryer section, the web is relatively dry and is further dried by the second dryer section at a reduced temperature, such as between about 300° F. to about 400° F. A variety of control techniques can also be utilized to control the temperature of each dryer section.
摘要翻译：提供了一种干燥纸幅的方法。该方法使用具有第一干燥部分和第二干燥部分的干燥器，例如通过干燥器。在第一干燥器部分内，相对湿的纸幅在升高的温度（例如约400°F至约500°F）之间干燥。在通过第一干燥部干燥之后，幅材相对干燥并进一步干燥通过第二干燥部分在降低的温度，例如约300°F至约400°F之间。各种控制技术也可以用于控制每个干燥部分的温度。

2. 发明授权

US06808600B2 Method for enhancing the softness of paper-based products 失效
公开(公告)号：US06808600B2
公开(公告)日：2004-10-26
申请号：US10291858
申请日：2002-11-08
申请人： Russell F. Ross , Jark C. Lau
发明人： Russell F. Ross , Jark C. Lau
IPC分类号： D21F700
CPC分类号： D21H25/04 , D21H21/22
摘要： A method for softening a paper-based product, such as facial tissues, bath tissues, paper towels, etc., is provided. In particular, the method of the present invention includes exposing a cellulosic fibrous material to ionizing radiation (e.g., electron beam radiation). It is believed that the ionizing radiation induces vibrational forces throughout the cellulosic fibrous structure, thereby disrupting hydrogen bonds between adjacent fibers and opening the crystalline structure of the material to result in a softer product.

3. 发明授权

US06200120B1 Die head assembly, apparatus, and process for meltblowing a fiberforming thermoplastic polymer 失效
标题翻译：熔模吹塑成型热塑性聚合物的模头组件，装置和方法
公开(公告)号：US06200120B1
公开(公告)日：2001-03-13
申请号：US09001645
申请日：1997-12-31
申请人： Jeffrey E. Fish , Jark C. Lau , Bryan D. Haynes
发明人： Jeffrey E. Fish , Jark C. Lau , Bryan D. Haynes
IPC分类号： B29B722
CPC分类号： D01D5/0985 , D01D4/025 , D04H1/56 , Y10T442/68
摘要： A die head assembly for meltblowing thermoplastic material comprising a first chamber for receiving a pressurized fluid, a second chamber for receiving a pressurized molten thermoplastic material, the second chamber defining an outlet through which the molten thermoplastic material exits the die head, and a fluid tube removably securable to the first chamber and defining a passageway having an inlet in communication with the first chamber and an outlet extending at least into the outlet of the second chamber. The die head assembly of claim 1, wherein the outlet of the second chamber defines a longitudinal axis, and the outlet of the second chamber and the outlet of the fluid tube define at least one elongated opening therebetween elongated in a direction extending substantially perpendicular to the longitudinal axis, the molten thermoplastic material passing through the elongated opening as it exits the die head.
摘要翻译：一种用于熔化热塑性材料的模头组件，包括用于接收加压流体的第一室，用于接收加压的熔融热塑性材料的第二室，所述第二室限定出熔融热塑性材料通过其离开模头的出口，以及流体管可拆卸地固定到第一腔室并且限定具有与第一腔室连通的入口的通道和至少延伸到第二腔室的出口的出口。2.根据权利要求1所述的模头组件，其中所述第二腔室的出口限定纵向轴线，并且第二腔室的出口和流体管道的出口限定至少一个细长的开口，其在基本上垂直于纵向轴线延伸的方向上延伸，熔融热塑性材料在其离开模具时通过细长开口头。

4. 发明授权

US07127771B2 Dental wipe 有权
公开(公告)号：US07127771B2
公开(公告)日：2006-10-31
申请号：US10603043
申请日：2003-06-24
申请人： Jason P. McDevitt , Michael S. Brunner , Jark C. Lau , Jaeho Kim
发明人： Jason P. McDevitt , Michael S. Brunner , Jark C. Lau , Jaeho Kim
IPC分类号： A47K7/02 , A61C15/00
CPC分类号： B32B27/12 , A41D13/087 , A46B5/04 , A46B2200/1066 , A61F13/10 , A61F13/105 , B32B7/02 , B32B2307/7246 , B32B2432/00
摘要： An oral cleaning device that can fit onto a human finger is provided. The oral cleaning device, or dental wipe, is at least partially made from an elastomeric material, such as an elastomeric nonwoven, so that the wipe can more aptly fit onto a finger. Furthermore, the wipe, in some instances, can possess a barrier that is liquid-impervious, but vapor-permeable so that the finger of a user is more comfortable during cleaning. Various additives can be applied to the wipe to aid in the cleaning process.

5. 发明授权

US06803013B2 Process of making a meltblown web 失效
标题翻译：制造熔喷网的过程
公开(公告)号：US06803013B2
公开(公告)日：2004-10-12
申请号：US09997395
申请日：2001-11-29
申请人： Jeffrey E. Fish , Lamar H. Gipson , Jark C. Lau
发明人： Jeffrey E. Fish , Lamar H. Gipson , Jark C. Lau
IPC分类号： D01D400
CPC分类号： D01D5/0985 , D01D4/025
摘要： The present invention relates to an apparatus and method for forming meltblown material with a die assembly. The die may further include a die tip and a heating element positioned relative to the die tip apex to maintain the polymer material extruded from the die tip in a molten state.
摘要翻译：本发明涉及一种用模具组件形成熔喷材料的设备和方法。模具还可以包括模头和相对于模顶端顶点定位的加热元件，以将聚合物材料从模头尖端挤压成熔融状态。

6. 发明授权

US6117379A Method and apparatus for improved quenching of nonwoven filaments 失效
标题翻译：用于改善非织造长丝淬火的方法和装置
公开(公告)号：US6117379A
公开(公告)日：2000-09-12
申请号：US124536
申请日：1998-07-29
申请人： Bryan David Haynes , Jark C. Lau , Chad Michael Freese
发明人： Bryan David Haynes , Jark C. Lau , Chad Michael Freese
IPC分类号： D01D5/092 , D01D5/088 , D01D5/098 , D04H3/03 , D04H3/16 , B29C71/00
CPC分类号： D01D5/0985 , D01D5/088 , D04H3/03
摘要： A method and apparatus for improved quenching of nonwoven filaments utilizing a turbulence inducing bar arrangement disposed in a stream of quenching gas between the quenching gas supply apparatus and the group of filaments being extruded. The bar arrangement increases the turbulence of the quenching gas so that the gas applied to the filament group has a turbulence intensity of at least about 5%. The turbulent quenching gas penetrates the interior of the filament bundle to provide more efficient removal of heat.
摘要翻译：一种利用在猝熄气体供给装置和被挤出的长丝组之间的骤冷气体流中设置的湍流诱导棒布置来改进非织造长丝淬火的方法和装置。棒排列增加了淬火气体的湍流，使得施加到丝群上的气体具有至少约5％的湍流强度。湍流淬火气体穿透细丝束的内部以提供更有效的热量去除。

7. 发明授权

US06019152A Apparatus for heating nonwoven webs 失效
标题翻译：非织造纤维网加热装置
公开(公告)号：US06019152A
公开(公告)日：2000-02-01
申请号：US124539
申请日：1998-07-29
申请人： Bryan David Haynes , Jark C. Lau , Lee Cullen Boney , Robert James Baldy
发明人： Bryan David Haynes , Jark C. Lau , Lee Cullen Boney , Robert James Baldy
IPC分类号： D04H1/54 , D04H3/14 , D06B19/00
CPC分类号： D04H1/54 , D04H3/14
摘要： An apparatus and method for increasing the heating efficiency of a nonwoven web using heated air are provided. A flow modifier including a turbulence inducing bar arrangement is positioned between the heated air supply and the nonwoven web. The flow modifier increases the turbulence of the heated air before it contacts the nonwoven web, resulting in more thorough penetration of the web by the air, and better convective heat transfer between the heated air and the nonwoven web.
摘要翻译：提供了一种使用加热的空气提高非织造纤维网的加热效率的装置和方法。包括湍流诱导棒布置的流动调节器定位在加热的空气供应和非织造纤维网之间。流动调节剂在加热的空气接触非织造纤维网之前增加了湍流，导致纤维网被空气更彻底地渗透，并且在加热的空气和非织造纤维网之间具有更好的对流热传递。

8. 发明授权

US4818464A Extrusion process using a central air jet 失效
标题翻译：使用中央空气喷射的挤出过程
公开(公告)号：US4818464A
公开(公告)日：1989-04-04
申请号：US872992
申请日：1986-06-11
申请人： Jark C. Lau
发明人： Jark C. Lau
IPC分类号： D01D4/02 , D04H1/56 , B65H54/00
CPC分类号： D01D4/025 , D04H1/56
摘要： A thermoplastic material extrusion mechanism is provided which includes a die head having a centrally disposed high velocity gas delivery means adapted to continuously emit a jet of a gas having shear layers, at least one chamber for the thermoplastic material, thermoplastic material delivery means arranged at least partially surrounding the centrally disposed high velocity gas delivery means for directing extruded thermoplastic material emitted from the thermoplastic material delivery means toward the gas jet, causing the extruded thermoplastic material to be introduced into the shear layers of the gas jet, and a thermoplastic material conduit which communicates the at least one chamber with each of the thermoplastic material extrusion openings. A method of producing fibers of a thermoplastic material is also provided which comprises the steps of (a) forming a high velocity gas jet having shear layers, (b) extruding at least one stream of a molten thermoplastic material from at least one thermoplastic material delivery means arranged adjacent and at least partly surrounding the high velocity gas jet, and (c) merging the at least one thermoplastic material stream with the shear layers of the high velocity gas jet to attentuate the thermoplastic material into fibers, forming thereby fiber streams of the thermoplastic material.
摘要翻译：提供一种热塑性材料挤出机构，其包括具有中心设置的高速气体输送装置的模头，所述高速气体输送装置适于连续发射具有剪切层的气体的射流，至少一个用于热塑性材料的腔室，至少布置的热塑材料输送装置部分地围绕中心布置的高速气体输送装置，用于将从热塑材料输送装置发射的挤压热塑性材料引向气体射流，使挤出的热塑性材料被引入气体射流的剪切层;以及热塑性材料导管，将至少一个室与每个热塑性材料挤出开口连通。还提供了一种生产热塑性材料的纤维的方法，其包括以下步骤：（a）形成具有剪切层的高速气体射流，（b）从至少一种热塑性材料输送将所述至少一种热塑性材料流与所述高速气体射流的剪切层合并以将所述热塑性材料注入纤维中，由此形成纤维流热塑性材料。

9. 发明授权

US4701294A Eductor airforming apparatus 失效
标题翻译：电机气流成型装置
公开(公告)号：US4701294A
公开(公告)日：1987-10-20
申请号：US818568
申请日：1986-01-13
申请人： Fred R. Radwanski , Jark C. Lau , James L. Post
发明人： Fred R. Radwanski , Jark C. Lau , James L. Post
IPC分类号： A61F13/15 , B27N3/14 , D21F9/00 , B29C43/22
CPC分类号： B27N3/14 , A61F13/15658 , D21F9/00
摘要： The present invention provides an improved apparatus and method for forming a fibrous web. In accordance with the invention, a distributor housing delimits a fiberizing zone, and a delivery mechanism supplies a fiberizable material into the fiberizing zone. A moveable striking mechanism located in the fiberizing zone contacts the fiberizable material to initially separate the material into individual fibers. A discharging mechanism exits the fibers from the fiberizing zone into a web forming zone and toward a foraminous web forming layer. A gas delivering mechanism forces a stream of gas into the fiberizing zone to entrain the fibers therein and to eject a moving stream of the gas and fibers through the discharging mechanism into the web forming zone. The gas-fiber stream moves at a velocity sufficient to draw an induced supplementary gas flow past the discharging mechanism and toward the foraminous forming layer. A steering mechanism located in the web forming zone selectively guides the induced supplemental gas flow to direct the fibers toward selected areas of the foraminous forming layer.
摘要翻译：本发明提供了一种用于形成纤维网的改进的装置和方法。根据本发明，分配器壳体限定纤维化区域，并且输送机构将可纤化材料供应到纤维化区域中。位于纤维化区域中的可移动打击机构接触可纤化材料，以将材料初始分离成单个纤维。排出机构将纤维从纤维化区域排出到成网区域并朝向多孔的网状物形成层。气体输送机构迫使气流进入纤维化区以将纤维夹带在其中并将气体和纤维的移动流通过排出机构喷射到幅材形成区域中。气体纤维流以足以将诱导的辅助气流流过排放机构并朝向多孔形成层的速度移动。位于卷材形成区域中的转向机构选择性地引导感应的补充气流，以将纤维引向多孔形成层的选定区域。

10. 发明授权

US4526733A Meltblown die and method 失效
标题翻译：熔喷模具和方法
公开(公告)号：US4526733A
公开(公告)日：1985-07-02
申请号：US442486
申请日：1982-11-17
申请人： Jark C. Lau
发明人： Jark C. Lau
IPC分类号： D01D4/02 , D04H1/56 , B29F3/04
CPC分类号： D01D4/025 , D04H1/56 , Y10S264/75
摘要： Improvement to the die and method of forming meltblown fibers and webs using a relatively cool fluid for meltblowing. Thermoplastic polymers such as polyolefins, polyamides, polyesters and the like are spun in accordance with the meltblowing process and contacted by a fluid which forms fibers and attenuates them. In accordance with the invention, the fluid is substantially cooler than the molten polymer and permits formation of webs at shorter forming distances greatly improving web formation. In addition, the costs of manufacture are improved since heating of the attenuating fluid may be reduced or avoided. In a particularly preferred embodiment, the die is provided with insulation between the attenuating fluid and the polymer chamber to avoid or reduce the tendency of the molten polymer to cool and cause plugging of the die. Alternatively, the die may, itself, be formed from an insulating material. Webs produced in accordance with the method and die of the present invention display highly desirable properties such as uniformity, softness, opacity, cover and the like.
摘要翻译：使用相对较冷的流体来熔融吹塑成型熔喷纤维和网的方法的改进。热塑性聚合物如聚烯烃，聚酰胺，聚酯等根据熔喷法纺丝并与形成纤维的流体接触并使其衰减。根据本发明，流体基本上比熔融聚合物更冷，并允许在更短的成形距离下形成网，大大地改善了网的形成。此外，由于衰减流体的加热可以减少或避免，所以制造成本得到改善。在特别优选的实施例中，模具在衰减流体和聚合物室之间设置绝缘，以避免或减少熔融聚合物冷却并引起模头堵塞的趋势。或者，模具本身可以由绝缘材料形成。根据本发明的方法和模具生产的网状物显示出诸如均匀性，柔软度，不透明度，覆盖物等的非常期望的性能。

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