公开(公告)号：US06977028B2

公开(公告)日：2005-12-20

申请号：US10615308

申请日：2003-07-08

Applicant: Russell F. Ross ,  Jark C. Lau

Inventor： Russell F. Ross ,  Jark C. Lau

IPC: D21F5/18 ,  D21F11/00

CPC classification number: D21F5/044 ,  D21F5/182 ,  F26B13/16 ,  F26B21/10

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US06808600B2

公开(公告)日：2004-10-26

申请号：US10291858

申请日：2002-11-08

Applicant: Russell F. Ross ,  Jark C. Lau

Inventor： Russell F. Ross ,  Jark C. Lau

IPC: D21F700

CPC classification number: D21H25/04 ,  D21H21/22

Abstract: 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.

公开(公告)号：US06200120B1

公开(公告)日：2001-03-13

申请号：US09001645

申请日：1997-12-31

Applicant: Jeffrey E. Fish ,  Jark C. Lau ,  Bryan D. Haynes

Inventor： Jeffrey E. Fish ,  Jark C. Lau ,  Bryan D. Haynes

IPC: B29B722

CPC classification number: D01D5/0985 ,  D01D4/025 ,  D04H1/56 ,  Y10T442/68

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US06721987B2

公开(公告)日：2004-04-20

申请号：US09826411

申请日：2001-04-04

Applicant: Jason P. McDevitt ,  Michael S. Brunner ,  Jark C. Lau ,  Jaeho Kim

Inventor： Jason P. McDevitt ,  Michael S. Brunner ,  Jark C. Lau ,  Jaeho Kim

IPC: A47L1318

CPC classification number: B32B27/12 ,  A41D13/087 ,  A46B5/04 ,  A46B2200/1066 ,  A61F13/10 ,  A61F13/105 ,  B32B7/02 ,  B32B2307/7246 ,  B32B2432/00

Abstract: 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.

Abstract translation: 提供了能够适合人的手指的口腔清洁装置。 口腔清洁装置或牙齿擦拭物至少部分地由诸如弹性体非织造材料的弹性体材料制成，使得擦拭物可以更适合地装配到手指上。 此外，在一些情况下，擦拭物可以具有液体不可渗透但透气性的屏障，使得使用者的手指在清洁期间更舒适。 可以将各种添加剂应用于擦拭物以帮助清洁过程。

公开(公告)号：US06336801B1

公开(公告)日：2002-01-08

申请号：US09336295

申请日：1999-06-21

Applicant: Jeffrey E. Fish ,  Lamar H. Gipson ,  Jark C. Lau

Inventor： Jeffrey E. Fish ,  Lamar H. Gipson ,  Jark C. Lau

IPC: D01D512

CPC classification number: D01D5/0985 ,  D01D4/025

Abstract: The present invention relates to an apparatus, including a die, for forming meltblown material. The die may further include a die tip and a heating element positioned proximate to the die tip to maintain the polymer material extruded from the die tip in a molten state.

Abstract translation: 本发明涉及一种用于形成熔喷材料的装置，包括模具。 模具还可以包括模具顶端和靠近模具顶端设置的加热元件，以将从模头顶部挤出的聚合物材料保持在熔融状态。

公开(公告)号：US06176955B1

公开(公告)日：2001-01-23

申请号：US09449242

申请日：1999-11-24

Applicant: Bryan David Haynes ,  Jark C. Lau ,  Lee Cullen Boney ,  Robert James Baldy

Inventor： Bryan David Haynes ,  Jark C. Lau ,  Lee Cullen Boney ,  Robert James Baldy

IPC: D06B1900

CPC classification number: D04H1/54 ,  D04H3/14

Abstract: 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.

Abstract translation: 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改性剂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。

公开(公告)号：US5759352A

公开(公告)日：1998-06-02

申请号：US655332

申请日：1996-05-24

Applicant: Jark C. Lau ,  Philip Sim Lin

Inventor： Jark C. Lau ,  Philip Sim Lin

IPC: D21F1/38 ,  D21G9/00 ,  D21G1/02

CPC classification number: D21F1/38 ,  D21G9/0063

Abstract: An apparatus for stabilizing a low-strength sheet having a width and a top surface and moving in a first direction at a rate sufficient to entrain air. The apparatus includes an airfoil adapted to extend along the top surface of the sheet. The airfoil, in turn, includes: a bottom surface adapted to extend along a portion of the top surface of the sheet; a first surface extending a first distance from the bottom surface at a first juncture; a second surface extending a second distance from the bottom surface at a second juncture; and a top surface extending from the first surface at a third juncture to the second surface at a fourth juncture. The first distance in general is less than the second distance. In addition, the apparatus is oriented in a manner such that the portion of the apparatus which first encounters the entrained air is the first surface of the airfoil, and the first and bottom surfaces of the airfoil form an acute angle such that the first surface directs a substantial portion of the entrained air away from the sheet. The apparatus may include a forebody, a passageway, and/or a deflector.

Abstract translation: 一种用于稳定具有宽度和顶面的低强度片材并且以足以夹带空气的速度在第一方向上移动的装置。 该装置包括适于沿着片材的顶表面延伸的翼型件。 翼型件又包括：底面，其适于沿着片材的顶表面的一部分延伸; 在第一接合处从底表面延伸第一距离的第一表面; 在第二接合处从底表面延伸第二距离的第二表面; 以及在第三接合处从第一表面延伸到第二表面的顶表面。 第一距离一般小于第二距离。 另外，该装置的方向是这样一种方式使得装置首先遇到夹带的空气的部分是翼型件的第一表面，并且翼型件的第一和下表面形成锐角，使得第一表面引导 夹带的空气的大部分远离片材。 该装置可以包括前身，通道和/或偏转器。

公开(公告)号：US5244723A

公开(公告)日：1993-09-14

申请号：US818026

申请日：1992-01-03

Applicant: Richard A. Anderson ,  Jark C. Lau

Inventor： Richard A. Anderson ,  Jark C. Lau

IPC: D01D5/14 ,  D04H3/03 ,  D04H3/16

CPC classification number: D01D5/14 ,  D04H3/03 ,  D04H3/16 ,  Y10T428/2976 ,  Y10T442/626 ,  Y10T442/68

Abstract: A method of forming substantially continuous filaments which involves the steps of (1) extending a molten thermoplastic polymer through a die having a plurality of orifices to give a plurality of substantially continuous filaments; (2) quenching the filaments by contacting them with a quenching fluid having a temperature less than that of the filaments and a zero to high imposed velocity which, if other than zero, has a component which is in a direction other than parallel with the movement of filaments; (3) entraining and drawing the filaments in a nozzle with an attenuating liquid having a linear speed of at least about 400 feet/minute; and (4) collecting the drawn filaments. The filaments have an average diameter in the range of from about 5 to about 75 micrometers and a high variability of filament diameter from filament to filament and along the length of any given filament. In addition, at least some of such filaments are present as filament bundles. Such filaments can be collected as tow or can form the basis of a nonwoven web which is characterized by minimal filament-to-filament fusion bonding. The preferred thermoplastic polymers are polyolefins, with the most preferred polyolefin being polypropylene.

Abstract translation: 一种形成基本上连续的长丝的方法，其包括以下步骤：（1）使熔融的热塑性聚合物延伸通过具有多个孔的模具，以产生多个基本连续的长丝; （2）通过使其与具有小于丝的温度的淬火流体接触而淬火，并且零到高的施加速度，如果不是零，则具有除了与运动平行的方向以外的分量 的长丝 （3）用具有至少约400英尺/分钟的线速度的衰减液体夹带并在喷嘴中拉丝; 和（4）收集拉丝。 长丝具有在约5至约75微米范围内的平均直径和长丝直径从细丝到长丝以及沿任何给定长丝的长度的高变异性。 此外，这些细丝中的至少一些以丝束形式存在。 这种长丝可以以丝束的形式收集，或者可以形成非织造织物的基础，其特征在于最小的丝 - 丝熔合粘合。 优选的热塑性聚合物是聚烯烃，最优选的聚烯烃是聚丙烯。

公开(公告)号：US4720252A

公开(公告)日：1988-01-19

申请号：US905228

申请日：1986-09-09

Applicant: David W. Appel ,  Adrian D. Drost ,  Jark C. Lau

Inventor： David W. Appel ,  Adrian D. Drost ,  Jark C. Lau

IPC: B29C47/08 ,  B29C47/14 ,  D01D4/02 ,  D04H1/56 ,  B28B5/00

CPC classification number: B29C47/0877 ,  B29C47/0021 ,  B29C47/0883 ,  B29C47/14 ,  D01D4/025 ,  D04H1/56

Abstract: There is disclosed a melt-blowing die head having a die tip which, instead of a number of individual orifices, has a single continuous slot opening running its length. In addition the die tip is reinforced by means of aerodynamically shaped bosses in the fluid delivery channels which bear between the air plate and the exterior surface of the die tip. The die tip may also have reservoirs at either end in which debris may be collected when the slot is cleaned while the die head is in place on a melt-blowing machine.

Abstract translation: 公开了一种具有模头的熔喷模具头，该模头不代表多个单独的孔，具有延伸其长度的单个连续槽口。 另外，通过在空气板和模具顶端的外表面之间承载的流体输送通道中的空气动力学形状的凸台来加强模头。 模具顶端还可以在任一端具有储存器，其中当在喷射机器上的模头就位时清洁槽时可以收集碎屑。

公开(公告)号：US06019152A

公开(公告)日：2000-02-01

申请号：US124539

申请日：1998-07-29

Applicant: Bryan David Haynes ,  Jark C. Lau ,  Lee Cullen Boney ,  Robert James Baldy

Inventor： Bryan David Haynes ,  Jark C. Lau ,  Lee Cullen Boney ,  Robert James Baldy

IPC: D04H1/54 ,  D04H3/14 ,  D06B19/00

CPC classification number: D04H1/54 ,  D04H3/14

Abstract: 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.

Abstract translation: 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。