US20090183795A1 - Multi-Layer Papermaker's Forming Fabric With Long Machine Side MD Floats - Google Patents

Multi-Layer Papermaker's Forming Fabric With Long Machine Side MD Floats Download PDF

Info

Publication number
US20090183795A1
US20090183795A1 US12018385 US1838508A US2009183795A1 US 20090183795 A1 US20090183795 A1 US 20090183795A1 US 12018385 US12018385 US 12018385 US 1838508 A US1838508 A US 1838508A US 2009183795 A1 US2009183795 A1 US 2009183795A1
Authority
US
Grant status
Application
Patent type
Prior art keywords
yarns
md
bottom
top
cmd
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US12018385
Inventor
Kevin John Ward
Jason Goins
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WEAVEXX LLC
Original Assignee
WEAVEXX LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

Links

Images

Classifications

    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21FPAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00Wet end of machines for making continuous webs of paper
    • D21F1/0027Screen-cloths
    • D21F1/0036Multi-layer screen-cloths
    • D21F1/0045Triple layer fabrics

Abstract

A papermaker's fabric includes: a set of top MD yarns; a set of bottom MD yarns; a set of top CMD yarns interwoven with the top MD yarns to form a top fabric layer; a set of bottom CMD yarns interwoven with the bottom MD yarns to form a bottom fabric layer; and a set of stitching yarns that interweave with the top and bottom fabric layers. The top MD yarns and the top CMD yarns are interwoven in a series of repeat units and the bottom MD yarns and the bottom CMD yarns are interwoven in a series of corresponding repeat units. Each of the bottom MD yarns forms a bottom MD float by passing under three or more consecutive bottom CMD yarns.

Description

    FIELD OF THE INVENTION
  • This application is directed generally to papermaking, and more specifically to fabrics employed in papermaking.
  • BACKGROUND OF THE INVENTION
  • In the conventional fourdrinier papermaking process, a water slurry, or suspension, of cellulosic fibers (known as the paper “stock”) is fed onto the top of the upper run of an endless belt of woven wire and/or synthetic material that travels between two or more rolls. The belt, often referred to as a “forming fabric,” provides a papermaking surface on the upper surface of its upper run that operates as a filter to separate the cellulosic fibers of the paper stock from the aqueous medium, thereby forming a wet paper web. The aqueous medium drains through mesh openings of the forming fabric, known as drainage holes, by gravity or vacuum located on the lower surface of the upper run (i.e., the “machine side”) of the fabric.
  • After leaving the forming section, the paper web is transferred to a press section of the paper machine, where it is passed through the nips of one or more pairs of pressure rollers covered with another fabric, typically referred to as a “press felt.” Pressure from the rollers removes additional moisture from the web; the moisture removal is enhanced by the presence of a “batt” layer of the press felt. The paper is then transferred to a dryer section for further moisture removal. After drying, the paper is ready for secondary processing and packaging.
  • As used herein, the terms machine direction (“MD”) and cross machine direction (“CMD”) refer, respectively, to a direction aligned with the direction of travel of the papermakers' fabric on the papermaking machine, and a direction parallel to the fabric surface and traverse to the direction of travel. Likewise, directional references to the vertical relationship of the yarns in the fabric (e.g., above, below, top, bottom, beneath, etc.) assume that the papermaking surface of the fabric is the top of the fabric and the machine side surface of the fabric is the bottom of the fabric.
  • Typically, papermaker's fabrics are manufactured as endless belts by one of two basic weaving techniques. In the first of these techniques, fabrics are flat woven by a flat weaving process, with their ends being joined to form an endless belt by any one of a number of well-known joining methods, such as dismantling and reweaving the ends together (commonly known as splicing), or sewing on a pin-seamable flap or a special foldback on each end, then reweaving these into pin-seamable loops. A number of auto-joining machines are now commercially available, which for certain fabrics may be used to automate at least part of the joining process. In a flat woven papermaker's fabric, the warp yarns extend in the machine direction and the filling yarns extend in the cross machine direction.
  • In the second basic weaving technique, fabrics are woven directly in the form of a continuous belt with an endless weaving process. In the endless weaving process, the warp yarns extend in the cross machine direction and the filling yarns extend in the machine direction. Both weaving methods described hereinabove are well known in the art, and the term “endless belt” as used herein refers to belts made by either method.
  • Effective sheet and fiber support are important considerations in papermaking, especially for the forming section of the papermaking machine, where the wet web is initially formed. Additionally, the forming fabrics should exhibit good stability when they are run at high speeds on the papermaking machines, and preferably are highly permeable to reduce the amount of water retained in the web when it is transferred to the press section of the paper machine. In both tissue and fine paper applications (i.e., paper for use in quality printing, carbonizing, cigarettes, electrical condensers, and like) the papermaking surface comprises a very finely woven or fine wire mesh structure.
  • Typically, finely woven fabrics such as those used in fine paper and tissue applications include at least some relatively small diameter machine direction or cross machine direction yarns. Regrettably, however, such yarns tend to be delicate, leading to a short surface life for the fabric. Moreover, the use of smaller yarns can also adversely affect the mechanical stability of the fabric (especially in terms of skew resistance, narrowing propensity and stiffness), which may negatively impact both the service life and the performance of the fabric.
  • To combat these problems associated with fine weave fabrics, multi-layer forming fabrics have been developed with fine-mesh yarns on the paper forming surface to facilitate paper formation and coarser-mesh yarns on the machine contact side to provide strength and durability. For example, fabrics have been constructed which employ one set of machine direction yarns which interweave with two sets of cross machine direction yarns to form a fabric having a fine paper forming surface and a more durable machine side surface. These fabrics form part of a class of fabrics which are generally referred to as “double layer” fabrics. Similarly, fabrics have been constructed which include two sets of machine direction yarns and two sets of cross machine direction yarns that form a fine mesh paperside fabric layer and a separate, coarser machine side fabric layer. In these fabrics, which are part of a class of fabrics generally referred to as “triple layer” fabrics, the two fabric layers are typically bound together by separate stitching yarns. However, they may also be bound together using yarns from one or more of the sets of bottom and top cross machine direction and machine direction yarns. As double and triple layer fabrics include additional sets of yarn as compared to single layer fabrics, these fabrics typically have a higher “caliper” (i.e., they are thicker) than comparable single layer fabrics. An illustrative double layer fabric is shown in U.S. Pat. No. 4,423,755 to Thompson, and illustrative triple layer fabrics are shown in U.S. Pat. No. 4,501,303 to Osterberg, U.S. Pat. No. 5,152,326 to Vohringer, U.S. Pat. Nos. 5,437,315 and 5,967,195 to Ward, and U.S. Pat. No. 6,745,797 to Troughton.
  • U.S. Pat. No. 5,967,195 to Ward discloses a triple layer fabric in which pairs of stitching yarns extend in the cross machine direction and form part of the papermaking surface, in essence “completing the weave” of the papermaking surface, while also stitching with the bottom layer. The fabrics disclosed in Ward have the same number of top machine direction yarns and bottom machine direction yarns. Such fabrics have proven to provide an excellent papermaking surface (particularly due to the integration of the stitching yarns into the weave of the papermaking surface) and to combat inter-layer wear. U.S. Pat. No. 6,896,009 shows a similar concept with MD stitching yarns. However, in some applications (e.g., brown paper), high open area and fiber support may be desirable. Also, the improvement of other performance characteristics, such as wear resistance, may be desirable.
  • SUMMARY OF THE INVENTION
  • As a first aspect, embodiments of the present invention are directed to a papermaker's fabric, comprising: a set of top MD yarns; a set of bottom MD yarns; a set of top CMD yarns interwoven with the top MD yarns to form a top fabric layer; a set of bottom CMD yarns interwoven with the bottom MD yarns to form a bottom fabric layer; and a set of stitching yarns that interweave with the top and bottom fabric layers. The top MD yarns and the top CMD yarns are interwoven in a series of repeat units and the bottom MD yarns and the bottom CMD yarns are interwoven in a series of corresponding repeat units. Each of the bottom MD yarns forms a bottom MD float by passing under three or more consecutive bottom CMD yarns.
  • As a second aspect, embodiments of the present invention are directed to a papermaker's fabric, comprising: a set of top MD yarns; a set of bottom MD yarns; a set of CMD yarns interwoven with the top MD yarns to form a top fabric layer; and a set of CMD stitching yarn pairs that interweave with the top and bottom fabric layers. The top MD yarns and the top CMD yarns are interwoven in a series of repeat units and the bottom MD yarns and the bottom CMD yarns are interwoven in a series of corresponding repeat units. Each of the bottom MD yarns forms a bottom MD float by passing under three or more consecutive CMD stitching yarn pairs.
  • As a third aspect, embodiments of the present invention are directed to a papermaker's fabric, comprising: a set of MD stitching yarns, the stitching yarns being arranged in pairs; a set of bottom MD yarns; a set of top CMD yarns interwoven with the MD stitching yarns to Form a top fabric layer; and a set of bottom CMD yarns interwoven with the bottom MD yarns to form a bottom fabric layer. The MD stitching yarns and the top CMD yarns are interwoven in a series of repeat units and the bottom MD yarns, the MD stitching yarns and the bottom CMD yarns are interwoven in a series of corresponding repeat units. The MD stitching yarns have a first diameter, the bottom MD yarns have a second diameter, and the first diameter is less than the second diameter.
  • BRIEF DESCRIPTION OF THE FIGURES
  • FIG. 1 is a top view of the top layer of a repeat unit of a fabric according to embodiments of the present invention.
  • FIG. 2 is a top view of the bottom layer of the fabric of FIG. 1.
  • FIGS. 3A and 3B are section views taken along lines 3A-3A and 3B-3B, respectively, of the fabric of FIGS. 1A and 1B showing typical MD yarns.
  • FIG. 4 is a top view of the top layer of a repeat unit of a fabric according to additional embodiments of the present invention.
  • FIG. 5 is a top view of the bottom layer of the fabric of FIG. 4.
  • FIGS. 6A and 68 are section views taken along lines 6A-6A and 6B-6B, respectively, of the fabric of FIG. 4 showing typical top and bottom CMD yarns (FIG. 6A) and stitching yarns (FIG. 6B).
  • FIG. 6C is a section view taken along lines 6C-6C of FIG. 4 showing typical top and bottom MD yarns.
  • FIG. 7 is a top view of the top layer of a repeat unit of a fabric according to embodiments of the present invention.
  • FIG. 8 is a top view of the bottom layer of the fabric of FIG. 7.
  • FIGS. 9A-9C are section views taken along lines 9A-9A, 9B-9B and 9C-9C, respectively, of the fabric of FIG. 7 showing typical stitching yarns and CMD yarns.
  • FIG. 10 is a top view of the top layer of a repeat unit of a fabric according to additional embodiments of the present invention.
  • FIG. 11 is a top view of the bottom layer of the fabric of FIG. 10.
  • FIGS. 12A-12C are section views taken along lines 12A-12A, 12B-12B and 12C-12C, respectively, of the fabric of FIGS. 10 and 11 showing typical bottom MD yarns (FIG. 12A), stitching yarns (FIG. 12B) and top MD yarns (FIG. 12C).
  • DETAILED DESCRIPTION OF EMBODIMENTS OF THE INVENTION
  • The present invention will be described more particularly hereinafter with reference to the accompanying drawings. The invention is not intended to be limited to the illustrated embodiments; rather, these embodiments are intended to fully and completely disclose the invention to those skilled in this art. In the drawings, like numbers refer to like elements throughout. Thicknesses and dimensions of some components may be exaggerated for clarity.
  • Well-known functions or constructions may not be described in detail for brevity and/or clarity.
  • Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
  • The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms “a”, “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises” and/or “comprising,” when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. As used herein the expression “and/or” includes any and all combinations of one or more of the associated listed items.
  • Although the figures below only show single repeat units of the fabrics illustrated therein, those of skill in the art will appreciate that in commercial applications the repeat units shown in the figures would be repeated many times, in both the machine and cross machine directions, to form a large fabric suitable for use on a papermaking machine.
  • Turning now to FIGS. 1-3B, a repeat unit of a forming fabric according to embodiments of the present invention, designated broadly at 100, is illustrated therein. The repeat unit 100 includes eight MD stitching yarns 101-108, twenty top CMD yarns 111-130, four bottom MD yarns 141-144, and eight bottom CMD yarns 151-158. The interweaving of these yarns is described below.
  • As can be seen in FIGS. 1 and 3A, the MD stitching yarns 101-108 are disposed in pairs, wherein each pair together interweaves with the top CMD yarns 111-130 in an “over 1/under 1” sequence. For example, as can be seen in FIGS. 1 and 3A, MD stitching yarn 101 follows an “over 1/under 1” pattern relative to the top CMD yarns to form five consecutive MD knuckles (passing over even-numbered top CMD yarns 116, 118, 120, 122, 124 and below odd-numbered top CMD yarns 117, 119, 121, 123). MD stitching yarn 101 passes below the remaining top CMD yarns. Paired stitching yarn 102 follows an “over 1/under 1” pattern relative to the top CMD yarns to form five consecutive MD knuckles (passing over even-numbered top CMD yarns 126, 128, 130, 112, 114 and below top odd-numbered CMD yarns 127, 129, 101, 103). MD stitching yarn 102 passes below the remaining top CMD yarns. Thus, together the stitching yarns 101, 102 pass above all of the even-numbered top CMD yarns and below the odd-numbered top CMD yarns. The remaining MD stitching yarn pairs (i.e., MD stitching yarns 103, 104, MD stitching yarns 105, 106, and MD stitching yarns 107, 108) follow a similar “over 1/under 1” sequence with the top C MD yarns, with the result that the MD stitching yarns and the top CMD yarns form a plain weave top, or papermaking, surface.
  • Turning now to FIG. 2 and also to FIG. 3A, the MD stitching yarns 101-108 also interweave with the bottom CMD yarns 151-158. Each of the MD stitching yarns 101-108 passes below one bottom CMD yarn, with the MD stitching yarns of each pair together forming “over 3/under 1” pattern. For example, and referring to FIG. 3B. MD stitching yarn 101 passes under bottom CMD yarn 151 and over the remaining bottom CMD yarns. MD stitching yarn 102 passes under bottom CMD yarn 155, thus forming the “over 3/under 1” sequence with the bottom CMD yarns noted above. The remaining MD stitching yarn pairs similarly form an “over 3/under 1” sequence with the bottom CMD yarns. Each pair of stitching yarns weaves between two adjacent bottom MD yarns.
  • Referring again to FIG. 2 and also to FIG. 3B, the bottom MD yarns 141-144 interweave with the bottom CMD yarns in an “under 3/over 1” sequence that repeats twice within the repeat unit. For example, bottom MD yarn 141 passes below bottom CMD yarns 151-153, above bottom CMD yarn 154, below bottom CMD yarns 155-157, and above bottom CMD yarn 158. The other bottom MD yarns 142-144 follow a similar “under 3/over 1” pattern relative to the bottom CMD yarns. The result is a series of bottom, or machine, side MD floats formed by the bottom MD yarns that pass below three bottom CMD yarns.
  • Notably, the MD stitching yarns 101-108 each stitch underneath the bottom CMD yarns in a location where they can be protected by two adjacent bottom MD yarn floats. For example. MD stitching yarns 101, 102 stitch below, respectively, bottom CMD yarns 151, 155. Adjacent bottom MD yarns 141, 144 pass below both of these bottom CMD yarns. As such, the bottom MD floats formed by the bottom MD yarns 141, 144 can protect the MD stitching yarns from wear, which can increase the life of the fabric 100.
  • In addition, it is believed that the presence of the long MD floats (i.e., floats that pass below three or more bottom MD yarns) may reduce drag of the fabric on the paper machine. In many embodiments, the bottom MD yarns comprise monofilament yarns, which tend to have considerable molecular alignment in the axial direction (induced during an extrusion process). In MD yarns, this alignment is substantially parallel with the machine direction. This molecular alignment may reduce drag of the fabric and the power requirement on the paper machine. The MD float and the molecular alignment within the floats may together reduce the wear rate of the fabric on the paper machine.
  • The materials for an exemplary embodiment of the fabric 100 are described in Table 1, with weaving and performance characteristics of the fabric shown in Table 2.
  • TABLE 1
    Yarn Type Material Size (mm)
    MD Stitching PET 0.15-01.8
    Bottom MD PET 0.32-0.36
    Top CMD PET 0.16-0.22
    Bottom CMD PET 0.36-0.48
  • TABLE 2
    Top Mesh (per in.) 38 × 76
    Permeability (cfm) 593
    Top Open Area (%) 34.9
    Fiber Support Index 127
  • It can also be seen from Table 1 that, in some embodiments, the MD stitching yarns are of smaller diameter than the bottom MD yarns (a ratio of top MD yarn diameter to bottom MD yarn diameter of between about 0.4 and 0.7 is typical). The use of finer MD stitching yarns can improve the papermaking surface, whereas the use of larger bottom MD yarns can improve wear.
  • The concept can also be applied to fabrics that have CMD stitching. For example, turning now to FIGS. 4-6C, a repeat unit of another fabric, designated broadly at 200, is illustrated therein. The repeat unit 200 includes ten top MD yarns 201-210, ten top CMD yarns 211-220, ten pairs of CMD stitching yarns 221 a, 221 b-230 a, 230 b, ten bottom MD yarns 231-240, and ten bottom CMD yarns 241-250. The interweaving of these yarns is described below.
  • As seen in FIG. 4, the top MD yarns 201-210 and the top CMD yarns 211-220 are interwoven such that each top CMD yarn passes over and beneath top MD yarns in an alternating fashion, with each top CMD yarn passing over and under the same top MD yarns. For example, as shown in FIGS. 4 and 6A, top CMD yarn 211 passes under odd-numbered top MD yarns 201-209 and over even-numbered top MD yarns 202-210.
  • Still referring to FIG. 4 and also to FIG. 6B, the top layer of the fabric 200 also includes portions of the CMD stitching yarns 221 a-230 b, which are positioned in pairs between adjacent top and bottom CMD yarns; there is no bottom CMD yarn below each stitching yarn pair so that space is present for the stitching yarns to stitch. Portions of the stitching yarns 221 a-230 b interweave with the top MD yarns 201-210 to form, together with the top CMD yarns 211-220, a plain weave pattern in the top surface of the fabric 200. In the illustrated embodiment, a portion of the stitching yarn of each pair designated with an “a” (e.g., 221 a, 222 a, etc.) interweaves in an alternating fashion with five top MD yarns (alternately passing over three top MD yarns and under two top MD yarns), and the other stitching yarn of the pair (those designated with a “b”) passes over two top MD yarns while passing below a top MD yarn positioned between those two top MD yarns. Thus, together the stitching yarns of a pair pass over each of the odd-numbered top MD yarns 201-209 and pass below each of the even-numbered top MD yarns 202-210 to form an “over 1/under 1” sequence with the top MD yarns. This arrangement can be seen in FIGS. 4 and 6B, which shows stitching yarn 211 a passing over top CMD yarns 205, 207 and 209 and below top CMD yarns 206 and 208, and further shows stitching yarn 211 b passing over top MD yarns 201 and 203 while passing under top CMD yarn 202. The other stitching yarns follow a similar pattern, with adjacent stitching yarn pairs being offset from each other by two top MD yarns. The result is the aforementioned plain weave surface.
  • Referring now to FIGS. 5 and 6C, the bottom layer of the repeat unit of the fabric 200 is illustrated therein. Each of the bottom MD and CMD yarns is positioned substantially directly below a corresponding top MD or CMD yarn. The bottom MD yarns are interwoven with the bottom CMD yarns in an “under 4/over 1” pattern that is repeated twice within the repeat unit. For example, as shown in FIG. 6C, bottom MD yarn 231 passes below bottom CMD yarns 244-247, above bottom CMD yarn 248, below bottom CMD yarns 249, 250, 241, 242 and above bottom CMD yarn 243. The other bottom MD yarns follow a similar “over 4/under 1/over 4/under 1” weave pattern, but are offset from their adjacent bottom MD yarns by two bottom CMD yarns. The long bottom MD floats formed by the bottom MD yarns can impart reduced drag and, consequently, improved wear resistance in the manner discussed above with respect to the fabric 100 shown in FIGS. 1-3B.
  • In addition, each of the stitching yarns 221 a-230 b passes below one of the bottom MD yarns to form a bottom knuckle, with the bottom knuckles of the stitching yarns of a pair being separated by five bottom MD yarns. For example, and as shown in FIG. 6B, stitching yarn 221 a passes below bottom MD yarn 232, and stitching yarn 221 b passes below bottom MD yarn 237. As is the case with the portions of the stitching yarns that interweave with the top MD yarns, the portions of the stitching yarns that interweave with the bottom MD yarns are also separated from each other by two bottom MD yarns.
  • Notably, the stitching points of the stitching yarns are located immediately adjacent the bottom knuckles formed by the bottom CMD yarns as they pass below a bottom MD yarn. For example, as best seen in FIGS. 5, 6A and 6B, both stitching yarn 211 a and immediately adjacent bottom CMD yarn 241 pass below bottom MD yarn 232, and both stitching yarn 221 b and bottom CMD yarn 241 pass below bottom MD yarn 237. As such, the stitching yarns are protected from wear by the presence of the bottom CMD knuckle formed by the adjacent bottom CMD yarn.
  • It can also be seen in FIGS. 4 and 5 that the stitching yarns are interwoven with the top and bottom MD yarns as “reversed picks.” This concept is described in detail in U.S. Pat. No. 5,967,195 to Ward and need not be discussed further herein. Those skilled in this art will appreciate that, although the illustrated reversed picks configuration is preferred, the present invention may also be employed with non-reversed picks fabrics.
  • As another example of a CMD-stitched fabric, a repeat unit of another fabric, designated broadly at 300, is illustrated in FIGS. 7-9C. The repeat unit 300 includes four top MD yarns 301-304, four top CMD yarns 311-314, four pairs of CMD stitching yarns 321, 321 b-324 a, 324 b, and four bottom MD yarns 331-334. The interweaving of these yarns is discussed in greater detail below.
  • Looking first at FIGS. 7 and 9C, the top MD yarns and top CMD yarns interweave such that the top CMD yarns 311-314 pass under each of the odd-numbered top MD yarns 301, 303 and over each of the even-numbered top MD yarns 302, 304. For example, as shown in FIGS. 7 and 9C, top CMD yarn 311 passes under odd-numbered top MD yarns 301, 303 and over even-numbered top MD yarns 302, 304 to form an “over 1/under 1” pattern. The remaining top CMD yarns follow a similar pattern with respect to the top MD yarns.
  • Turning now to FIGS. 7, 9A and 9B, the stitching yarn pairs 321 a, 321 b-324 a, 324 b interweave with the top MD yarns such that one of the stitching yarns (the yarns with an “a” designation) passes over one of the odd-numbered top MD yarns and under the other top MD yarns. For example, as shown in FIG. 9A, the stitching yarn 321 a passes over the top MD yarn 303 and under the other top MD yarns. The stitching yarn of a pair with a “b” designation passes over the odd-numbered stitching yarn in the repeat unit that the “a” yarn does not; for example, the stitching yarn 321 b passes over top MD yarn 301 and under the remaining top MD yarns (FIG. 9B). Thus, together the stitching yarns 321 a, 321 b follow an “over 1/under 1” sequence with respect to the top MD yarns. As such, the top MD yarns, the top CMD yarns, and the stitching yarns combine to form a plain weave papermaking surface.
  • Referring now to FIGS. 8, 9A and 9B, each of the “b” stitching yarns passes below one of the bottom MD yarns 331-334; however, the “a” stitching yarns do not (i.e., they are so-called “phantom” stitching yarns). For example, stitching yarn 321 a does not pass below any of the bottom MD yarns, but stitching yarn 321 b passes below bottom MD yarn 332 (see FIGS. 9A and 9B). The remaining stitching yarn pairs follow a similar pattern. The result is that each of the bottom MD yarns 331-334 forms an “under 3/over 1” pattern with the “b” stitching yarns, with the result that the bottom MD yarns form long MD floats (in this case, floats that are three CMD yarns in length) on the bottom surface of the fabric (see FIG. 8).
  • It should also be noted in FIGS. 9A-9C that the bottom MD yarns are staggered relative to the top MD yarns; in other words, the bottom MD yarns are not positioned directly beneath the top MD yarns, but are positioned directly below the space between adjacent top MD yarns.
  • Another example of a fabric that is MD-stitched is shown in FIGS. 10-12C, wherein a repeat unit of another forming fabric according to embodiments of the present invention, designated broadly at 400, is illustrated. The repeat unit 400 includes four top MD yarns 401-404, eight MD stitching MD yarns 411 a, 411 b-414 a, 414 b, thirty top CMD yarns 421-450, and twelve bottom MD yarns 451-462, and twelve bottom C MD yarns 471-482. The interweaving of these yarns is described below.
  • As can be seen in FIGS. 10 and 12C, each of the top MD yarns 401-404 interweaves with the top CMD yarns 421-450 in an “over 1/under 1” sequence, in which the top MD yarns 401-404 pass under the odd-numbered top CMD yarns 421-449 and over the even-numbered top CMD yarns 422-450. As an example, and as shown in FIG. 12C, top MD yarn 401 passes over even-numbered top CMD yarns 422-450 and under odd-numbered top CMD yarns 421-449. This pattern is repeated for the remainder of the top MD yarns 402-404.
  • Referring now to FIGS. 10 and 12B, the MD stitching yarns 411 a, 411 b-414 a, 414 b are disposed in pairs, wherein each pair together interweaves with the top CMD yarns 421-450 in an “over 1/under 1” sequence. For example, as can be seen in FIGS. 10 and 12B, MD stitching yarn 411 a follows an “over 1/under 1” pattern relative to the top CMD yarns to form seven consecutive MD knuckles (passing over odd-numbered top CMD yarns 421-433 and below even-numbered top CMD yarns 422-432). MD stitching yarn 411 a passes below the remaining top CMD yarns 434-450. Paired stitching yarn 411 b follows an “over 1/under 1” pattern relative to the top CMD yarns to form eight consecutive MD knuckles (passing over odd-numbered top CMD yarns 435-449) and below even-numbered top CMD yarns 436-448). MD stitching yarn 411 b passes below the remaining top CMD yarns. Thus together the MD stitching yarns 411 a, 411 b follow an “over 1/under 1” pattern relative to the top CMD yarns. The remaining MD stitching yarn pairs (i.e., MD stitching yarns 412 a, 412 b, MD stitching yarns 413 a, 413 b, and MD stitching yarns 414 a, 414 b) follow a similar “over 1/under 1” sequence with the top CMD yarns. As a result, the top MD yarns, top CMD yarns, and stitching yarns combine to form a plain weave surface.
  • Turning now to FIG. 11 and also to FIG. 12, the MD stitching yarns 411 a-414 b also interweave with the bottom CMD yarns 471-482. Each of the MD stitching yarns 411 a-414 b passes below one bottom CMD yarn, with the MD stitching yarns of each pair together forming “over 5/under 1” pattern. For example, and referring to FIG. 12B, MD stitching yarn 411 a passes under bottom CMD yarn 479 and over the remaining bottom CMD yarns. MD stitching yarn 411 b passes under bottom CMD yarn 473, thus combining with MD stitching yarn 411 a to form the “over 5/under 1” sequence with the bottom CMD yarns noted above. The remaining MD stitching yarn pairs similarly form an “over 5/under 1” sequence with the bottom CMD yarns.
  • Referring again to FIG. 11 and also to FIG. 12A, the bottom MD yarns 451-462 interweave with the bottom CMD yarns in an “under 5/over 1” sequence that repeats twice within the repeat unit. For example, bottom MD yarn 451 passes below bottom CMD yarns 471-475, above bottom CMD yarn 476, below bottom CMD yarns 477-481, and above bottom CMD yarn 482. The other bottom MD yarns 452-462 follow a similar “under 5/over 1” pattern relative to the bottom CMD yarns. Thus, the bottom MD yarns form long MD floats (in this instance under five bottom CMD yarns) that may have the same drag reduction and wear resistance discussed above.
  • Also, each of the stitching locations is positioned under a bottom CMD yarn that the adjacent bottom MD yarns do not pass under. As such, the stitching locations can be protected as described above.
  • The form of the yarns utilized in fabrics of the present invention can vary, depending upon the desired properties of the final papermaker's fabric. For example, the yarns may be monofilament yarns, flattened monofilament yarns as described above, multifilament yarns, twisted multifilament or monofilament yarns, spun yarns, or any combination thereof. Also, the materials comprising yarns employed in the fabric of the present invention may be those commonly used in papermaker's fabric. For example, the yarns may be formed of polyester, polyamide (nylon), polypropylene, aramid, or the like. The skilled artisan should select a yarn material according to the particular application of the final fabric. In particular, round monofilament yarns formed of polyester or polyamide may be suitable, and, as noted, the use of monofilament yarns as bottom MD yarns may be particularly suitable.
  • Those skilled in this art will appreciate that yarns of different sizes may be employed in fabric embodiments of the present invention. As noted above, in embodiments that include both top and bottom MD yarns, the top MD yarns may be of a smaller diameter than the bottom MD yarns. For example, the top MD yarns, top CMD yarns, and stitching yarns may have a diameter of between about 0.0 and 0.20 mm, the bottom MD yarns may have a diameter of between about 0.15 and 0.25 mm, and the bottom CMD yarns may have a diameter of between about 0.20 and 0.30 mm. The mesh of fabrics according to embodiments of the present invention may also vary. For example, the mesh of the top surface may vary between about 20×30 to 30×50 (epcm to ppcm), and the total mesh may vary between about 60×45 to 90×75.
  • In addition, the numbers of different types of yarns relative to other types of yarns may vary. For example, in some of the embodiments shown, the ratio of top MD yarns to bottom MD yarns is 1:1; in others, the ratio of “effective” top MD yarns (i.e., the number of top MD yarns plus the number of MD stitching yarn pairs) to bottom MD yarns is 1:1 or 2:3, but other ratios may also be employed. In some embodiments, the number of top CMD yarns to bottom CMD yarns is 1:1; in others, the number of “effective” top CMD yarns (i.e., the number of top CMD yarns plus the number of CMD stitching yarn pairs) is 2:1; and in other embodiments, the ratio of top CMD yarns to bottom CMD yarns is 5:2; however, other ratios may also be employed.
  • Finally, although each of the embodiments include a plain weave top surface, other embodiments may include a top surface having a different weave pattern, including twill, satin, or the like. In addition, the long MD float bottom surfaces of the fabrics may take other weave patterns, including satin, twill or the like.
  • Pursuant to another aspect of the present invention, methods of making paper are provided. Pursuant to these methods, one of the exemplary papermaker's forming fabrics described herein is provided, and paper is then made by applying paper stock to the forming fabric and by then removing moisture from the paper stock. As the details of how the paper stock is applied to the forming fabric and how moisture is removed from the paper stock is well understood by those of skill in the art, additional details regarding this aspect of the present invention need not be provided herein.
  • The foregoing embodiments are illustrative of the present invention, and are not to be construed as limiting thereof. Although exemplary embodiments of this invention have been described, those skilled in the art will readily appreciate that many modifications are possible in the exemplary embodiments without materially departing from the novel teachings and advantages of this invention. Accordingly, all such modifications are intended to be included within the scope of this invention as defined in the claims. The invention is defined by the following claims, with equivalents of the claims to be included therein.

Claims (23)

  1. 1. A papermaker's fabric, comprising:
    a set of top machine direction (MD) yarns;
    a set of bottom MD yarns;
    a set of top cross machine direction (CMD) yarns interwoven with the top MD yarns to form a top fabric layer;
    a set of bottom CMD yarns interwoven with the bottom MD yarns to form a bottom fabric layer;
    and a set of stitching yarns that interweave with the top and bottom fabric layers;
    wherein the top MD yarns and the top CMD yarns are interwoven in a series of repeat units and the bottom MD yarns and the bottom CMD yarns are interwoven in a series of corresponding repeat units;
    wherein each of the bottom MD yarns forms a bottom MD float by passing under three or more consecutive bottom CMD yarns.
  2. 2. The papermaker's fabric defined in claim 1, wherein the bottom MD floats pass under between three and five consecutive bottom CMD yarns.
  3. 3. The papermaker's fabric defined in claim 1, wherein the bottom MD yarns comprise monofilament yarns.
  4. 4. The papermaker's fabric defined in claim 1, wherein the stitching yarns are arranged in pairs.
  5. 5. The papermaker's fabric defined in claim 4, wherein the stitching yarn pairs comprise MD stitching yarns.
  6. 6. The papermaker's fabric defined in claim 4, wherein the stitching yarn pairs comprise CMD stitching yarns.
  7. 7. The papermaker's fabric defined in claim 1, wherein the top MD yarns, the top CMD yarns and the stitching yarns combine in the top fabric layer to form a plain weave top surface.
  8. 8. The papermaker's fabric defined in claim 1, wherein each of the MD yarns of the top layer is also a stitching yarn.
  9. 9. The papermaker's fabric defined in claim 4, wherein one of the stitching yarns of each pair is a phantom stitching yarn.
  10. 10. The papermaker's fabric defined in claim 5, wherein each of the stitching yarns stitches below a bottom CMD yarn that is one of the consecutive yarns that each of the adjacent bottom MD yarn passes under in forming the bottom MD float.
  11. 11. The papermaker's fabric defined in claim 6, wherein each of the stitching yarns stitches under a bottom MD yarn that an adjacent bottom CMD yarn also passes under.
  12. 12. The papermaker's fabric defined in claim 1, wherein the top MD yarns have a first diameter, the bottom MD yarns have a second diameter, and the first diameter is smaller than the second diameter.
  13. 13. The papermaker's fabric defined in claim 8, wherein the ratio of MD stitching yarn pairs to bottom MD yarns is 1:1.
  14. 14. The papermaker's fabric defined in claim 5, wherein the ratio of top MD yarns and stitching yarn pairs to bottom MD yarns is 2:3.
  15. 15. The papermaker's fabric defined in claim 5, wherein the ratio of top CMD yarns to bottom CMD yarns is 5:2.
  16. 16. The papermaker's fabric defined in claim 6, wherein the ratio of top CMD yarns to bottom CMD yarns is 1:1.
  17. 17. A papermaker's fabric, comprising:
    a set of top machine direction (MD) yarns;
    a set of bottom MD yarns;
    a set of cross machine direction (CMD) yarns interwoven with the top MD yarns to form a top fabric layer;
    a set of CMD stitching yarn pairs that interweave with the top and bottom fabric layers;
    wherein the top MD yarns and the top CMD yarns are interwoven in a series of repeat units and the bottom MD yarns and the bottom CMD yarns are interwoven in a series of corresponding repeat units;
    wherein each of the bottom MD yarns forms a bottom MD float by passing under three or more consecutive CMD stitching yarn pairs.
  18. 18. The papermaker's fabric defined in claim 17, wherein the bottom MD yarns comprise monofilament yarns.
  19. 19. The papermaker's fabric defined in claim 17, wherein the top MD yarns, the top CMD yarns, and the stitching yarns combine in the top fabric layer to form a plain weave top surface.
  20. 20. The papermaker's fabric defined in claim 17, wherein one of the CMD stitching yarns of each pair is a phantom stitching yarn.
  21. 21. The papermaker's fabric defined in claim 17, wherein the ratio of top MD yarns to bottom MD yarns is 1:1.
  22. 22. A papermaker's fabric, comprising:
    a set of machine direction (MD) stitching yarns, the stitching yarns being arranged in pairs;
    a set of bottom MD yarns;
    a set of top cross machine direction (CMD) yarns interwoven with the MD stitching yarns to form a top fabric layer; and
    a set of bottom CMD yarns interwoven with the bottom MD yarns to form a bottom fabric layer;
    wherein the MD stitching yarns and the top CMD yarns are interwoven in a series of repeat units and the bottom MD yarns, the MD stitching yarns and the bottom CMD yarns are interwoven in a series of corresponding repeat units; and
    wherein the MD stitching yarns have a first diameter, the bottom MD yarns have a second diameter, and the first diameter is less than the second diameter.
  23. 23. The papermaker's fabric defined in claim 22, wherein the ratio of the first diameter to the second diameter is between about 0.4 and 0.7.
US12018385 2008-01-23 2008-01-23 Multi-Layer Papermaker's Forming Fabric With Long Machine Side MD Floats Abandoned US20090183795A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12018385 US20090183795A1 (en) 2008-01-23 2008-01-23 Multi-Layer Papermaker's Forming Fabric With Long Machine Side MD Floats

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US12018385 US20090183795A1 (en) 2008-01-23 2008-01-23 Multi-Layer Papermaker's Forming Fabric With Long Machine Side MD Floats
PCT/US2009/000093 WO2009094101A3 (en) 2008-01-23 2009-01-08 Multi-layer papermaker's fabric with long machine side md floats
US12708684 US7931051B2 (en) 2008-01-23 2010-02-19 Multi-layer papermaker's forming fabric with long machine side MD floats

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12708684 Division US7931051B2 (en) 2008-01-23 2010-02-19 Multi-layer papermaker's forming fabric with long machine side MD floats

Publications (1)

Publication Number Publication Date
US20090183795A1 true true US20090183795A1 (en) 2009-07-23

Family

ID=40548555

Family Applications (2)

Application Number Title Priority Date Filing Date
US12018385 Abandoned US20090183795A1 (en) 2008-01-23 2008-01-23 Multi-Layer Papermaker's Forming Fabric With Long Machine Side MD Floats
US12708684 Active US7931051B2 (en) 2008-01-23 2010-02-19 Multi-layer papermaker's forming fabric with long machine side MD floats

Family Applications After (1)

Application Number Title Priority Date Filing Date
US12708684 Active US7931051B2 (en) 2008-01-23 2010-02-19 Multi-layer papermaker's forming fabric with long machine side MD floats

Country Status (2)

Country Link
US (2) US20090183795A1 (en)
WO (1) WO2009094101A3 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080035288A1 (en) * 2003-12-23 2008-02-14 Mullally Cristina A Tissue products having high durability and a deep discontinuous pocket structure
WO2010051243A1 (en) * 2008-10-31 2010-05-06 Weavexx Corporation Multi-layer papermaker's forming fabric with alternating paired and single top cmd yarns
US20110036527A1 (en) * 2009-02-25 2011-02-17 Kevin John Ward Multi-layer papermaker's forming fabric with paired md binding yarns
US20110100577A1 (en) * 2009-11-04 2011-05-05 Oliver Baumann Papermaker's Forming Fabric with Engineered Drainage Channels
US20120145348A1 (en) * 2010-12-13 2012-06-14 Joachim Pitzler Papermaking Forming Fabric with Long Bottom CMD Yarn Floats

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8353252B1 (en) * 2011-12-05 2013-01-15 Voith Patent Gmbh Process for preparing a seam area for a PMC base fabric

Citations (97)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2554034A (en) * 1948-08-18 1951-05-22 Orr Felt & Blanket Company Papermaker's felt
US3094149A (en) * 1960-11-14 1963-06-18 Orr Felt & Blanket Company Paper makers felt
US3325909A (en) * 1966-01-27 1967-06-20 Huyck Corp Fabric for pumping fluids
US4093512A (en) * 1975-04-23 1978-06-06 Huyck Corporation Papermakers belts having ultra-high modulus load bearing yarns
US4182381A (en) * 1976-08-10 1980-01-08 Scapa-Porritt Limited Papermakers fabrics
US4244543A (en) * 1979-01-08 1981-01-13 Exxon Research & Engineering Co. Support roller or rocker for hot expanding pipe lines
US4438788A (en) * 1980-09-30 1984-03-27 Scapa Inc. Papermakers belt formed from warp yarns of non-circular cross section
US4452284A (en) * 1977-08-16 1984-06-05 Hermann Wangner Gmbh & Co. Kg Paper machine screen and process for production thereof
US4453573A (en) * 1980-02-11 1984-06-12 Huyck Corporation Papermakers forming fabric
US4501303A (en) * 1981-06-23 1985-02-26 Nordiskafilt Ab Forming fabric
US4515853A (en) * 1983-01-20 1985-05-07 Hermann Wangner Gmbh & Co. Kg Composite fabric for use as clothing for the sheet forming section of a papermaking machine
US4529013A (en) * 1975-10-30 1985-07-16 Scapa-Porritt Limited Papermakers fabrics
US4564052A (en) * 1981-11-23 1986-01-14 Hermann Wangner Gmbh & Co. Kg Double-layer fabric for paper machine screen
US4564551A (en) * 1982-07-02 1986-01-14 Thomas Josef Heimbach Gmbh & Co. Wet-pressing belt for paper machines
US4592395A (en) * 1983-03-01 1986-06-03 Hermann Wangner - Gmbh & Co. Kg Papermachine clothing in a fabric weave having no axis of symmetry in the length direction
US4592396A (en) * 1983-08-17 1986-06-03 Hermann Wangner-Gmbh & Co. Kg Multi-layer clothing for papermaking machines
US4605585A (en) * 1982-04-26 1986-08-12 Nordiskafilt Ab Forming fabric
US4633596A (en) * 1981-09-01 1987-01-06 Albany International Corp. Paper machine clothing
US4636426A (en) * 1985-01-04 1987-01-13 Huyck Corporation Papermaker's fabric with yarns having multiple parallel monofilament strands
US4642261A (en) * 1984-12-21 1987-02-10 Unaform Inc. Papermakers fabric having a tight bottom weft geometry
US4676278A (en) * 1986-10-10 1987-06-30 Albany International Corp. Forming fabric
US4729412A (en) * 1983-02-23 1988-03-08 Nordiskafilt Ab Forming fabric of double-layer type
US4731281A (en) * 1984-10-29 1988-03-15 Huyck Corporation Papermakers fabric with encapsulated monofilament yarns
US4739803A (en) * 1986-05-06 1988-04-26 Hermann Wangner Gmbh & Co., Kg Fabric for the sheet forming section of a papermaking machine
US4755420A (en) * 1984-05-01 1988-07-05 Jwi Ltd. Dryer fabric having warp strands made of melt-extrudable polyphenylene sulphide
US4759975A (en) * 1986-11-06 1988-07-26 Asten Group, Inc. Papermaker's wet press felt having multi-layered base fabric
US4815499A (en) * 1986-11-28 1989-03-28 Jwi Ltd. Composite forming fabric
US4815503A (en) * 1986-10-10 1989-03-28 Hermann Wangner Gmbh & Co. Kg Fabric for the sheet forming section of a papermaking machine
US4909284A (en) * 1988-09-23 1990-03-20 Albany International Corp. Double layered papermaker's fabric
USRE33195E (en) * 1978-08-04 1990-04-10 Asten Group, Inc. Fabrics for papermaking machines
US4928737A (en) * 1986-10-07 1990-05-29 Hermann Wangner Gmbh & Co. Kg Fabric for the sheet forming section of a papermaking machine
US4934414A (en) * 1988-01-15 1990-06-19 Hermann Wangner Gmbh & Co., Kg Double-layer papermaking fabric
US4942077A (en) * 1989-05-23 1990-07-17 Kimberly-Clark Corporation Tissue webs having a regular pattern of densified areas
US4941514A (en) * 1987-02-10 1990-07-17 Tamfeld Oy Ab Multi-weft paper machine cloth with intermediate layer selected to control permeability
US4945952A (en) * 1987-02-19 1990-08-07 F. Oberdorfer Gmbh & Co. Kg Industriegewebe-Technik Multiple layer paper making wire with zig zag directed connecting threads between layers
US4982766A (en) * 1990-03-02 1991-01-08 Tamfelt Oy Ab Paper machine fabric
US4987929A (en) * 1989-08-25 1991-01-29 Huyck Corporation Forming fabric with interposing cross machine direction yarns
US4989647A (en) * 1988-04-08 1991-02-05 Huyck Corporaiton Dual warp forming fabric with a diagonal knuckle pattern
US4989648A (en) * 1988-08-31 1991-02-05 Nippon Filcon Co., Ltd. Single-layer papermaking fabric having a flat surface of auxiliary wefts
US4998569A (en) * 1988-08-30 1991-03-12 Nippon Filcon Co., Ltd. Single-layer papermaking broken-twill fabric avoiding wire marks
US4998568A (en) * 1987-04-22 1991-03-12 F. Oberdorfer Gmbh & Co. Kg Industriegewebe-Technik Double layered papermaking fabric with high paper side cross thread density
US5022441A (en) * 1988-06-27 1991-06-11 Nippon Filcon Co., Ltd. Papermaker's double layer fabric with high warp and weft volume per repeat
US5025839A (en) * 1990-03-29 1991-06-25 Asten Group, Inc. Two-ply papermakers forming fabric with zig-zagging MD yarns
US5084326A (en) * 1989-03-22 1992-01-28 F. Oberdorfer Gmbh & Co. Kg Industriegewebe-Technik Forming fabric for the wet end of a papermaking machine
US5089324A (en) * 1990-09-18 1992-02-18 Jwi Ltd. Press section dewatering fabric
US5092372A (en) * 1989-07-19 1992-03-03 Fitzka Karl M Paper forming fabric with partner yarns
US5094719A (en) * 1990-10-03 1992-03-10 501 Asten Group, Inc. Belt filter press fabric
US5101866A (en) * 1991-01-15 1992-04-07 Niagara Lockport Industries Inc. Double layer papermakers fabric having extra support yarns
US5110672A (en) * 1991-06-19 1992-05-05 Huyck Corporation Papermakers' press felt with base fabric that does not require seaming
US5116478A (en) * 1990-11-05 1992-05-26 Nippon Filcon Co., Ltd. Extendable and heat shrinkable polyester mono-filament for endless fabric
US5135802A (en) * 1991-12-06 1992-08-04 Huyck Corporation Absorber felt
US5219004A (en) * 1992-02-06 1993-06-15 Lindsay Wire, Inc. Multi-ply papermaking fabric with binder warps
US5228482A (en) * 1992-07-06 1993-07-20 Wangner Systems Corporation Papermaking fabric with diagonally arranged pockets
US5277967A (en) * 1991-11-21 1994-01-11 Huyck Licensco, Inc. Multilayer fabrics
US5421375A (en) * 1994-02-28 1995-06-06 Wangner Systems Corporation Eight harness double layer forming fabric with uniform drainage
US5421374A (en) * 1993-10-08 1995-06-06 Asten Group, Inc. Two-ply forming fabric with three or more times as many CMD yarns in the top ply than in the bottom ply
US5429686A (en) * 1994-04-12 1995-07-04 Lindsay Wire, Inc. Apparatus for making soft tissue products
US5437315A (en) * 1994-03-09 1995-08-01 Huyck Licensco, Inc. Multilayer forming fabric
US5482567A (en) * 1994-12-06 1996-01-09 Huyck Licensco, Inc. Multilayer forming fabric
US5487414A (en) * 1993-09-06 1996-01-30 Nippon Filcon Co., Ltd. Double layer paper-making fabric
US5518042A (en) * 1994-09-16 1996-05-21 Huyck Licensco, Inc. Papermaker's forming fabric with additional cross machine direction locator and fiber supporting yarns
US5520225A (en) * 1995-01-23 1996-05-28 Wangner Systems Corp. Pocket arrangement in the support surface of a woven papermaking fabric
US5618612A (en) * 1995-05-30 1997-04-08 Huyck Licensco, Inc. Press felt having fine base fabric
US5641001A (en) * 1995-08-16 1997-06-24 Huyck Licensco, Inc. Papermaker's fabric with additional cross machine direction yarns positioned in saddles
US5651394A (en) * 1996-02-02 1997-07-29 Huyck Licensco, Inc. Papermakers fabric having cabled monofilament oval-shaped yarns
US5709250A (en) * 1994-09-16 1998-01-20 Weavexx Corporation Papermakers' forming fabric having additional fiber support yarns
USRE35777E (en) * 1989-02-10 1998-04-28 Huyck Licensco, Inc. Self stitching multilayer papermaking fabric
US5746257A (en) * 1995-07-06 1998-05-05 Asten, Inc. Corrugator belt seam
US5857498A (en) * 1997-06-04 1999-01-12 Weavexx Corporation Papermaker's double layer forming fabric
US5881764A (en) * 1997-08-01 1999-03-16 Weavexx Corporation Multi-layer forming fabric with stitching yarn pairs integrated into papermaking surface
US5891516A (en) * 1998-06-12 1999-04-06 Weavexx Corporation Fabric for forming fiber cement articles
US6073661A (en) * 1994-09-16 2000-06-13 Weavexx Corporation Process for forming paper using a papermaker's forming fabric
US6175996B1 (en) * 1999-07-22 2001-01-23 Weavexx Corporation Method of forming a papermakers' felt
US6179965B1 (en) * 1992-10-02 2001-01-30 Astenjohnson, Inc. Papermakers wet press felt with high contact, resilient base fabric
US6202705B1 (en) * 1998-05-23 2001-03-20 Astenjohnson, Inc. Warp-tied composite forming fabric
US6207598B1 (en) * 1998-07-16 2001-03-27 Astenjohnson, Inc. Soft-faced dryer fabric
US6227255B1 (en) * 1997-12-15 2001-05-08 Albany International Corp. Warped-reinforced woven fabric
US6237644B1 (en) * 1998-09-01 2001-05-29 Stewart Lister Hay Tissue forming fabrics
US6240973B1 (en) * 1999-10-12 2001-06-05 Astenjohnson, Inc. Forming fabric woven with warp triplets
US6244306B1 (en) * 2000-05-26 2001-06-12 Weavexx Corporation Papermaker's forming fabric
US6253796B1 (en) * 2000-07-28 2001-07-03 Weavexx Corporation Papermaker's forming fabric
US6379506B1 (en) * 2000-10-05 2002-04-30 Weavexx Corporation Auto-joinable triple layer papermaker's forming fabric
US6383339B1 (en) * 2000-03-30 2002-05-07 Weavexx Corporation Transfer belt
US20030010393A1 (en) * 2001-06-29 2003-01-16 Takehito Kuji Industrial multilayer textile
US6581645B1 (en) * 1999-06-29 2003-06-24 Astenjohnson, Inc. Warp-tied composite forming fabric
US6585006B1 (en) * 2000-02-10 2003-07-01 Weavexx Corporation Papermaker's forming fabric with companion yarns
US6699367B2 (en) * 2000-08-21 2004-03-02 Weavexx Corporation Papermaker's felt
US6708732B1 (en) * 2002-03-28 2004-03-23 Voith Fabrics Heidenheim Gmbh & Co. Kg Fabrics for web forming equipment
US20040079434A1 (en) * 2002-10-24 2004-04-29 Martin Chad A. Paired warp triple layer forming fabrics with optimum sheet building characteristics
US20040102118A1 (en) * 2002-11-27 2004-05-27 Hay Stewart Lister High permeability woven members employing paired machine direction yarns for use in papermaking machine
US6763855B2 (en) * 2001-10-30 2004-07-20 Albany International Corp. Through-air-drying base fabric
US6837276B2 (en) * 2002-11-07 2005-01-04 Albany International Corp. Air channel dryer fabric
US6837277B2 (en) * 2003-01-30 2005-01-04 Weavexx Corporation Papermaker's forming fabric
US6899143B2 (en) * 2002-11-21 2005-05-31 Albany International Corp. Forming fabric with twinned top wefts and an extra layer of middle wefts
US7001489B2 (en) * 2002-05-06 2006-02-21 Tamfelt Oyj Abp Paper machine fabric
US7059357B2 (en) * 2003-03-19 2006-06-13 Weavexx Corporation Warp-stitched multilayer papermaker's fabrics
US7059361B1 (en) * 2005-04-28 2006-06-13 Albany International Corp. Stable forming fabric with high fiber support

Family Cites Families (61)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US481549A (en) * 1892-08-30 Anti-rattler for thill-couplings
DE454092C (en) 1927-12-29 H G Waldhelm Filztuchfabrik Woven dewatering in paper machines
US2172430A (en) * 1937-10-14 1939-09-12 Lawrence Duck Company Single ply drier felt with asbestos facing
US4289173A (en) * 1975-10-30 1981-09-15 Scapa-Porritt Limited Papermakers fabrics
US4290209A (en) * 1978-05-17 1981-09-22 Jwi Ltd. Dryer fabric
DE3036409C2 (en) 1980-09-26 1983-01-20 Hermann Wangner Gmbh & Co Kg, 7410 Reutlingen, De
US4784190A (en) * 1980-10-16 1988-11-15 Huyck Corporation Dryer fabric having longitudinal zones of different permeability
US4414263A (en) 1982-07-09 1983-11-08 Atlanta Felt Company, Inc. Press felt
DE3318960A1 (en) 1983-05-25 1984-11-29 Oberdorfer Fa F Multi-layer forming fabric for the wet partie a paper machine
DE3329740C2 (en) 1983-08-17 1986-07-03 Hermann Wangner Gmbh & Co Kg, 7410 Reutlingen, De
FR2560242B1 (en) 1984-02-29 1986-07-04 Asten Fabriques Feutres Papete Canvas destiny especially for paper machines, and process for its preparation
FI844125L (en) 1984-03-26 1985-09-27 Huyck Corp Pappersmaskintyg som bestaor of slitstarka traodar.
GB8409534D0 (en) 1984-04-12 1984-05-23 Jwi Ltd Multilayer forming fabric
EP0164434B1 (en) 1984-06-14 1989-05-24 F. Oberdorfer GmbH & Co. KG Industriegewebe-Technik Papermachine cloth
DE3445367C1 (en) 1984-12-12 1986-08-14 Oberdorfer F Composite fabric as paper machine
FR2597123B1 (en) 1986-04-10 1988-12-02 Thuasne & Cie Elastic Fabric contention
EP0224276B1 (en) 1986-05-06 1990-03-28 Hermann Wangner GmbH & Co. KG Screen cloth for the wet end of a paper-making machine
US4709732A (en) 1986-05-13 1987-12-01 Huyck Corporation Fourteen harness dual layer weave
DE3635000A1 (en) 1986-10-14 1988-04-21 Oberdorfer Fa F Double-ply paper machine with coarsely structured running side and finely structured page paper
DE3635632A1 (en) 1986-10-20 1988-04-21 Wangner Gmbh Co Kg Hermann Clothing for the sheet forming section of a paper machine
US4705601A (en) 1987-02-05 1987-11-10 B.I. Industries, Inc. Multi-ply paper forming fabric with ovate warp yarns in lowermost ply
GB8706552D0 (en) 1987-03-19 1987-04-23 Scapa Porrtitt Ltd Papermachine &c clothing
US4967805A (en) 1989-05-23 1990-11-06 B.I. Industries, Inc. Multi-ply forming fabric providing varying widths of machine direction drainage channels
DE3938159A1 (en) 1989-11-16 1991-05-23 Oberdorfer Fa F Composite fabric for paper machine screens
JP2558169B2 (en) 1990-03-27 1996-11-27 日本フイルコン株式会社 Single fabric papermaking forming the horizontal plane of the auxiliary weft papermaking surface
US5343896A (en) * 1990-06-06 1994-09-06 Asten Group, Inc. Papermakers fabric having stacked machine direction yarns
US5199467A (en) * 1990-06-06 1993-04-06 Asten Group, Inc. Papermakers fabric with stacked machine direction yarns
FI85605C (en) 1990-06-15 1994-06-28 Tamfelt Oy Ab Tvaoskiktad pappersmaskinsduk
US5092375A (en) * 1990-07-25 1992-03-03 Landers Phillip G Liquid barrier system
US5067526A (en) 1990-08-06 1991-11-26 Niagara Lockport Industries, Inc. 14 harness dual layer papermaking fabric
DE4302031C1 (en) 1993-01-26 1993-12-16 Heimbach Gmbh Thomas Josef Fourdrinier for paper mfg. machine for large contact surface area - comprises oven plastics filaments with gp. in sub-gps. shrunk for longitudinal filaments side by side, for flexibility
WO1995006722A1 (en) 1993-09-03 1995-03-09 Japan Tobacco Inc. Method of transforming monocotyledon by using scutellum of immature embryo
US5454405A (en) 1994-06-02 1995-10-03 Albany International Corp. Triple layer papermaking fabric including top and bottom weft yarns interwoven with a warp yarn system
US5456293A (en) 1994-08-01 1995-10-10 Wangner Systems Corporation Woven papermaking fabric with diagonally arranged pockets and troughs
US5542455A (en) * 1994-08-01 1996-08-06 Wangner Systems Corp. Papermaking fabric having diagonal rows of pockets separated by diagonal rows of strips having a co-planar surface
US5503196A (en) * 1994-12-07 1996-04-02 Albany International Corp. Papermakers fabric having a system of machine-direction yarns residing interior of the fabric surfaces
US5549967A (en) * 1995-05-04 1996-08-27 Huyck Licensco, Inc. Papermakers' press fabric with increased contact area
US5555917A (en) * 1995-08-11 1996-09-17 Wangner Systems Corporation Sixteen harness multi-layer forming fabric
GB9520516D0 (en) * 1995-10-05 1995-12-13 Scapa Group Plc Fabric
US5853547A (en) * 1996-02-29 1998-12-29 Asten, Inc. Papermaking fabric, process for producing high bulk products and the products produced thereby
GB9604602D0 (en) 1996-03-04 1996-05-01 Jwi Ltd Composite papermaking fabric with paired weft binder yarns
WO1997038160A1 (en) * 1996-04-04 1997-10-16 Asten, Inc. A multiplanar single layer forming fabric
US5937914A (en) * 1997-02-20 1999-08-17 Weavexx Corporation Papermaker's fabric with auxiliary yarns
US5967195A (en) 1997-08-01 1999-10-19 Weavexx Corporation Multi-layer forming fabric with stitching yarn pairs integrated into papermaking surface
US6158478A (en) 1998-04-14 2000-12-12 Astenjohnson, Inc. Wear resistant design for high temperature papermachine applications
US6112774A (en) * 1998-06-02 2000-09-05 Weavexx Corporation Double layer papermaker's forming fabric with reduced twinning.
US6110324A (en) * 1998-06-25 2000-08-29 The Procter & Gamble Company Papermaking belt having reinforcing piles
US5975149A (en) * 1998-08-11 1999-11-02 Asten, Inc. Multilayer press fabric including long floats of high temperature MD yarns in the paper support layer
US6148869A (en) 1998-12-17 2000-11-21 Wangner Systems Corporation Dual layer papermaking fabric formed in a balanced weave
US6276402B1 (en) 1999-08-23 2001-08-21 Astenjohnson, Inc. Multilayer papermakers fabric
US6123116A (en) 1999-10-21 2000-09-26 Weavexx Corporation Low caliper mechanically stable multi-layer papermaker's fabrics with paired machine side cross machine direction yarns
GB0005344D0 (en) * 2000-03-06 2000-04-26 Stone Richard Forming fabric with machine side layer weft binder yarns
WO2002000096A3 (en) 2000-06-23 2002-07-11 Physiometrix Inc Frontal electrode array for patient eeg signal acquisition
DE10134667A1 (en) 2001-07-20 2003-02-06 Neuroprogen Gmbh Leipzig A method for producing isolated cell cultures, the culture medium for culturing cell cultures and cell culture
US6616812B2 (en) * 2001-09-27 2003-09-09 Voith Paper Patent Gmbh Anti-rewet felt for use in a papermaking machine
GB0218245D0 (en) 2002-08-06 2002-09-11 Stone Richard Warp triplet composite forming fabric
US7048012B2 (en) * 2002-10-24 2006-05-23 Albany International Corp. Paired warp triple layer forming fabrics with optimum sheet building characteristics
EP1656480A1 (en) * 2003-08-13 2006-05-17 Voith Fabrics Patent GmbH Fabrics employing binder/top interchanging yarn pairs
US7243687B2 (en) 2004-06-07 2007-07-17 Weavexx Corporation Papermaker's forming fabric with twice as many bottom MD yarns as top MD yarns
US20060048840A1 (en) * 2004-08-27 2006-03-09 Scott Quigley Compound forming fabric with additional bottom yarns
DE102005041042A1 (en) * 2005-08-30 2007-03-01 Voith Patent Gmbh Paper machine filter e.g. form-up filter, has threads with height extension that sectionally runs on external side of upper fabric layer such that breadth extension is oriented essentially parallel to external side of upper fabric layer

Patent Citations (99)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2554034A (en) * 1948-08-18 1951-05-22 Orr Felt & Blanket Company Papermaker's felt
US3094149A (en) * 1960-11-14 1963-06-18 Orr Felt & Blanket Company Paper makers felt
US3325909A (en) * 1966-01-27 1967-06-20 Huyck Corp Fabric for pumping fluids
US4093512A (en) * 1975-04-23 1978-06-06 Huyck Corporation Papermakers belts having ultra-high modulus load bearing yarns
US4529013A (en) * 1975-10-30 1985-07-16 Scapa-Porritt Limited Papermakers fabrics
US4182381A (en) * 1976-08-10 1980-01-08 Scapa-Porritt Limited Papermakers fabrics
US4452284A (en) * 1977-08-16 1984-06-05 Hermann Wangner Gmbh & Co. Kg Paper machine screen and process for production thereof
USRE33195E (en) * 1978-08-04 1990-04-10 Asten Group, Inc. Fabrics for papermaking machines
US4244543A (en) * 1979-01-08 1981-01-13 Exxon Research & Engineering Co. Support roller or rocker for hot expanding pipe lines
US4453573A (en) * 1980-02-11 1984-06-12 Huyck Corporation Papermakers forming fabric
US4438788A (en) * 1980-09-30 1984-03-27 Scapa Inc. Papermakers belt formed from warp yarns of non-circular cross section
US4501303A (en) * 1981-06-23 1985-02-26 Nordiskafilt Ab Forming fabric
US4633596A (en) * 1981-09-01 1987-01-06 Albany International Corp. Paper machine clothing
US4564052A (en) * 1981-11-23 1986-01-14 Hermann Wangner Gmbh & Co. Kg Double-layer fabric for paper machine screen
US4605585A (en) * 1982-04-26 1986-08-12 Nordiskafilt Ab Forming fabric
US4564551A (en) * 1982-07-02 1986-01-14 Thomas Josef Heimbach Gmbh & Co. Wet-pressing belt for paper machines
US4515853A (en) * 1983-01-20 1985-05-07 Hermann Wangner Gmbh & Co. Kg Composite fabric for use as clothing for the sheet forming section of a papermaking machine
US4729412A (en) * 1983-02-23 1988-03-08 Nordiskafilt Ab Forming fabric of double-layer type
US4592395A (en) * 1983-03-01 1986-06-03 Hermann Wangner - Gmbh & Co. Kg Papermachine clothing in a fabric weave having no axis of symmetry in the length direction
US4592396A (en) * 1983-08-17 1986-06-03 Hermann Wangner-Gmbh & Co. Kg Multi-layer clothing for papermaking machines
US4755420A (en) * 1984-05-01 1988-07-05 Jwi Ltd. Dryer fabric having warp strands made of melt-extrudable polyphenylene sulphide
US4731281A (en) * 1984-10-29 1988-03-15 Huyck Corporation Papermakers fabric with encapsulated monofilament yarns
US4642261A (en) * 1984-12-21 1987-02-10 Unaform Inc. Papermakers fabric having a tight bottom weft geometry
US4636426A (en) * 1985-01-04 1987-01-13 Huyck Corporation Papermaker's fabric with yarns having multiple parallel monofilament strands
US4739803A (en) * 1986-05-06 1988-04-26 Hermann Wangner Gmbh & Co., Kg Fabric for the sheet forming section of a papermaking machine
US4928737A (en) * 1986-10-07 1990-05-29 Hermann Wangner Gmbh & Co. Kg Fabric for the sheet forming section of a papermaking machine
US4815503A (en) * 1986-10-10 1989-03-28 Hermann Wangner Gmbh & Co. Kg Fabric for the sheet forming section of a papermaking machine
US4676278A (en) * 1986-10-10 1987-06-30 Albany International Corp. Forming fabric
US4759975A (en) * 1986-11-06 1988-07-26 Asten Group, Inc. Papermaker's wet press felt having multi-layered base fabric
US4815499A (en) * 1986-11-28 1989-03-28 Jwi Ltd. Composite forming fabric
US4941514A (en) * 1987-02-10 1990-07-17 Tamfeld Oy Ab Multi-weft paper machine cloth with intermediate layer selected to control permeability
US4945952A (en) * 1987-02-19 1990-08-07 F. Oberdorfer Gmbh & Co. Kg Industriegewebe-Technik Multiple layer paper making wire with zig zag directed connecting threads between layers
US4998568A (en) * 1987-04-22 1991-03-12 F. Oberdorfer Gmbh & Co. Kg Industriegewebe-Technik Double layered papermaking fabric with high paper side cross thread density
US4934414A (en) * 1988-01-15 1990-06-19 Hermann Wangner Gmbh & Co., Kg Double-layer papermaking fabric
US4989647A (en) * 1988-04-08 1991-02-05 Huyck Corporaiton Dual warp forming fabric with a diagonal knuckle pattern
US5022441A (en) * 1988-06-27 1991-06-11 Nippon Filcon Co., Ltd. Papermaker's double layer fabric with high warp and weft volume per repeat
US4998569A (en) * 1988-08-30 1991-03-12 Nippon Filcon Co., Ltd. Single-layer papermaking broken-twill fabric avoiding wire marks
US4989648A (en) * 1988-08-31 1991-02-05 Nippon Filcon Co., Ltd. Single-layer papermaking fabric having a flat surface of auxiliary wefts
US4909284A (en) * 1988-09-23 1990-03-20 Albany International Corp. Double layered papermaker's fabric
USRE35777E (en) * 1989-02-10 1998-04-28 Huyck Licensco, Inc. Self stitching multilayer papermaking fabric
US5084326A (en) * 1989-03-22 1992-01-28 F. Oberdorfer Gmbh & Co. Kg Industriegewebe-Technik Forming fabric for the wet end of a papermaking machine
US4942077A (en) * 1989-05-23 1990-07-17 Kimberly-Clark Corporation Tissue webs having a regular pattern of densified areas
US5092372A (en) * 1989-07-19 1992-03-03 Fitzka Karl M Paper forming fabric with partner yarns
US4987929A (en) * 1989-08-25 1991-01-29 Huyck Corporation Forming fabric with interposing cross machine direction yarns
US4982766A (en) * 1990-03-02 1991-01-08 Tamfelt Oy Ab Paper machine fabric
US5025839A (en) * 1990-03-29 1991-06-25 Asten Group, Inc. Two-ply papermakers forming fabric with zig-zagging MD yarns
US5089324A (en) * 1990-09-18 1992-02-18 Jwi Ltd. Press section dewatering fabric
US5094719A (en) * 1990-10-03 1992-03-10 501 Asten Group, Inc. Belt filter press fabric
US5116478A (en) * 1990-11-05 1992-05-26 Nippon Filcon Co., Ltd. Extendable and heat shrinkable polyester mono-filament for endless fabric
US5101866A (en) * 1991-01-15 1992-04-07 Niagara Lockport Industries Inc. Double layer papermakers fabric having extra support yarns
US5110672A (en) * 1991-06-19 1992-05-05 Huyck Corporation Papermakers' press felt with base fabric that does not require seaming
US5277967A (en) * 1991-11-21 1994-01-11 Huyck Licensco, Inc. Multilayer fabrics
US5135802A (en) * 1991-12-06 1992-08-04 Huyck Corporation Absorber felt
US5219004A (en) * 1992-02-06 1993-06-15 Lindsay Wire, Inc. Multi-ply papermaking fabric with binder warps
US5228482A (en) * 1992-07-06 1993-07-20 Wangner Systems Corporation Papermaking fabric with diagonally arranged pockets
US6179965B1 (en) * 1992-10-02 2001-01-30 Astenjohnson, Inc. Papermakers wet press felt with high contact, resilient base fabric
US5487414A (en) * 1993-09-06 1996-01-30 Nippon Filcon Co., Ltd. Double layer paper-making fabric
US5421374A (en) * 1993-10-08 1995-06-06 Asten Group, Inc. Two-ply forming fabric with three or more times as many CMD yarns in the top ply than in the bottom ply
US5421375A (en) * 1994-02-28 1995-06-06 Wangner Systems Corporation Eight harness double layer forming fabric with uniform drainage
US5437315A (en) * 1994-03-09 1995-08-01 Huyck Licensco, Inc. Multilayer forming fabric
US5429686A (en) * 1994-04-12 1995-07-04 Lindsay Wire, Inc. Apparatus for making soft tissue products
US5518042A (en) * 1994-09-16 1996-05-21 Huyck Licensco, Inc. Papermaker's forming fabric with additional cross machine direction locator and fiber supporting yarns
US5899240A (en) * 1994-09-16 1999-05-04 Weavexx Corporation Papermaker's fabric with additional first and second locator and fiber supporting yarns
US5894867A (en) * 1994-09-16 1999-04-20 Weavexx Corporation Process for producing paper using papermakers forming fabric
US5709250A (en) * 1994-09-16 1998-01-20 Weavexx Corporation Papermakers' forming fabric having additional fiber support yarns
US6073661A (en) * 1994-09-16 2000-06-13 Weavexx Corporation Process for forming paper using a papermaker's forming fabric
US5482567A (en) * 1994-12-06 1996-01-09 Huyck Licensco, Inc. Multilayer forming fabric
US5520225A (en) * 1995-01-23 1996-05-28 Wangner Systems Corp. Pocket arrangement in the support surface of a woven papermaking fabric
US5618612A (en) * 1995-05-30 1997-04-08 Huyck Licensco, Inc. Press felt having fine base fabric
US5746257A (en) * 1995-07-06 1998-05-05 Asten, Inc. Corrugator belt seam
US5641001A (en) * 1995-08-16 1997-06-24 Huyck Licensco, Inc. Papermaker's fabric with additional cross machine direction yarns positioned in saddles
US5651394A (en) * 1996-02-02 1997-07-29 Huyck Licensco, Inc. Papermakers fabric having cabled monofilament oval-shaped yarns
US5857498A (en) * 1997-06-04 1999-01-12 Weavexx Corporation Papermaker's double layer forming fabric
US5881764A (en) * 1997-08-01 1999-03-16 Weavexx Corporation Multi-layer forming fabric with stitching yarn pairs integrated into papermaking surface
US6227255B1 (en) * 1997-12-15 2001-05-08 Albany International Corp. Warped-reinforced woven fabric
US6202705B1 (en) * 1998-05-23 2001-03-20 Astenjohnson, Inc. Warp-tied composite forming fabric
US5891516A (en) * 1998-06-12 1999-04-06 Weavexx Corporation Fabric for forming fiber cement articles
US6207598B1 (en) * 1998-07-16 2001-03-27 Astenjohnson, Inc. Soft-faced dryer fabric
US6237644B1 (en) * 1998-09-01 2001-05-29 Stewart Lister Hay Tissue forming fabrics
US6581645B1 (en) * 1999-06-29 2003-06-24 Astenjohnson, Inc. Warp-tied composite forming fabric
US6175996B1 (en) * 1999-07-22 2001-01-23 Weavexx Corporation Method of forming a papermakers' felt
US6240973B1 (en) * 1999-10-12 2001-06-05 Astenjohnson, Inc. Forming fabric woven with warp triplets
US6585006B1 (en) * 2000-02-10 2003-07-01 Weavexx Corporation Papermaker's forming fabric with companion yarns
US6383339B1 (en) * 2000-03-30 2002-05-07 Weavexx Corporation Transfer belt
US6244306B1 (en) * 2000-05-26 2001-06-12 Weavexx Corporation Papermaker's forming fabric
US6253796B1 (en) * 2000-07-28 2001-07-03 Weavexx Corporation Papermaker's forming fabric
US6699367B2 (en) * 2000-08-21 2004-03-02 Weavexx Corporation Papermaker's felt
US6379506B1 (en) * 2000-10-05 2002-04-30 Weavexx Corporation Auto-joinable triple layer papermaker's forming fabric
US20030010393A1 (en) * 2001-06-29 2003-01-16 Takehito Kuji Industrial multilayer textile
US6763855B2 (en) * 2001-10-30 2004-07-20 Albany International Corp. Through-air-drying base fabric
US6708732B1 (en) * 2002-03-28 2004-03-23 Voith Fabrics Heidenheim Gmbh & Co. Kg Fabrics for web forming equipment
US7001489B2 (en) * 2002-05-06 2006-02-21 Tamfelt Oyj Abp Paper machine fabric
US20040079434A1 (en) * 2002-10-24 2004-04-29 Martin Chad A. Paired warp triple layer forming fabrics with optimum sheet building characteristics
US6837276B2 (en) * 2002-11-07 2005-01-04 Albany International Corp. Air channel dryer fabric
US6899143B2 (en) * 2002-11-21 2005-05-31 Albany International Corp. Forming fabric with twinned top wefts and an extra layer of middle wefts
US20040102118A1 (en) * 2002-11-27 2004-05-27 Hay Stewart Lister High permeability woven members employing paired machine direction yarns for use in papermaking machine
US6837277B2 (en) * 2003-01-30 2005-01-04 Weavexx Corporation Papermaker's forming fabric
US7059357B2 (en) * 2003-03-19 2006-06-13 Weavexx Corporation Warp-stitched multilayer papermaker's fabrics
US7059361B1 (en) * 2005-04-28 2006-06-13 Albany International Corp. Stable forming fabric with high fiber support

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080035288A1 (en) * 2003-12-23 2008-02-14 Mullally Cristina A Tissue products having high durability and a deep discontinuous pocket structure
US7726349B2 (en) * 2003-12-23 2010-06-01 Kimberly-Clark Worldwide, Inc. Tissue products having high durability and a deep discontinuous pocket structure
WO2010051243A1 (en) * 2008-10-31 2010-05-06 Weavexx Corporation Multi-layer papermaker's forming fabric with alternating paired and single top cmd yarns
US20100108175A1 (en) * 2008-10-31 2010-05-06 Christine Barratte Multi-layer papermaker's forming fabric with alternating paired and single top cmd yarns
US7766053B2 (en) 2008-10-31 2010-08-03 Weavexx Corporation Multi-layer papermaker's forming fabric with alternating paired and single top CMD yarns
US20110036527A1 (en) * 2009-02-25 2011-02-17 Kevin John Ward Multi-layer papermaker's forming fabric with paired md binding yarns
US8196613B2 (en) * 2009-02-25 2012-06-12 Kevin John Ward Multi-layer papermaker's forming fabric with paired MD binding yarns
US20110100577A1 (en) * 2009-11-04 2011-05-05 Oliver Baumann Papermaker's Forming Fabric with Engineered Drainage Channels
US8251103B2 (en) 2009-11-04 2012-08-28 Weavexx Corporation Papermaker's forming fabric with engineered drainage channels
US20120145348A1 (en) * 2010-12-13 2012-06-14 Joachim Pitzler Papermaking Forming Fabric with Long Bottom CMD Yarn Floats
US8267125B2 (en) * 2010-12-13 2012-09-18 Huyck Licensco Inc. Papermaking forming fabric with long bottom CMD yarn floats

Also Published As

Publication number Publication date Type
US7931051B2 (en) 2011-04-26 grant
WO2009094101A3 (en) 2009-09-17 application
US20100147410A1 (en) 2010-06-17 application
WO2009094101A2 (en) 2009-07-30 application

Similar Documents

Publication Publication Date Title
US6834684B2 (en) Paired warp triple layer forming fabrics with optimum sheet building characteristics
US7007722B2 (en) Forming fabric
US5518042A (en) Papermaker's forming fabric with additional cross machine direction locator and fiber supporting yarns
US4987929A (en) Forming fabric with interposing cross machine direction yarns
US5437315A (en) Multilayer forming fabric
US7048012B2 (en) Paired warp triple layer forming fabrics with optimum sheet building characteristics
US6276402B1 (en) Multilayer papermakers fabric
US5641001A (en) Papermaker's fabric with additional cross machine direction yarns positioned in saddles
US5482567A (en) Multilayer forming fabric
US5937914A (en) Papermaker's fabric with auxiliary yarns
US4989647A (en) Dual warp forming fabric with a diagonal knuckle pattern
US6073661A (en) Process for forming paper using a papermaker's forming fabric
US6413377B1 (en) Double layer papermaking forming fabric
US5421374A (en) Two-ply forming fabric with three or more times as many CMD yarns in the top ply than in the bottom ply
US20060219312A1 (en) Fabrics with multi-segment, paired, interchanging yarns
US6585006B1 (en) Papermaker's forming fabric with companion yarns
US5857498A (en) Papermaker's double layer forming fabric
US5881764A (en) Multi-layer forming fabric with stitching yarn pairs integrated into papermaking surface
US6123116A (en) Low caliper mechanically stable multi-layer papermaker's fabrics with paired machine side cross machine direction yarns
US6902652B2 (en) Multi-layer papermaker's fabrics with packing yarns
US6179013B1 (en) Low caliper multi-layer forming fabrics with machine side cross machine direction yarns having a flattened cross section
US5967195A (en) Multi-layer forming fabric with stitching yarn pairs integrated into papermaking surface
US6112774A (en) Double layer papermaker's forming fabric with reduced twinning.
US6379506B1 (en) Auto-joinable triple layer papermaker's forming fabric
US6837276B2 (en) Air channel dryer fabric

Legal Events

Date Code Title Description
AS Assignment

Owner name: WEAVEXX CORPORATION, NORTH CAROLINA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:WARD, KEVIN JOHN;GOINS, JASON;REEL/FRAME:020838/0774;SIGNING DATES FROM 20080408 TO 20080409

AS Assignment

Owner name: WEAVEXX, LLC,NORTH CAROLINA

Free format text: CHANGE OF NAME;ASSIGNOR:WEAVEXX CORPORATION;REEL/FRAME:024148/0876

Effective date: 20081212

AS Assignment

Owner name: CITICORP NORTH AMERICA, INC. AS COLLATERAL AGENT (

Free format text: SECURITY AGREEMENT (SECOND LIEN);ASSIGNORS:WEAVEXX LLC;XERIUM TECHNOLOGIES, INC.;XTI LLC;AND OTHERS;REEL/FRAME:024767/0669

Effective date: 20100525

Owner name: CITICORP NORTH AMERICA, INC., AS COLLATERAL AGENT

Free format text: SECURITY AGREEMENT (FIRST LIEN);ASSIGNORS:WEAVEXX LLC;XERIUM TECHNOLOGIES, INC.;XTI LLC;AND OTHERS;REEL/FRAME:024767/0565

Effective date: 20100525

AS Assignment

Owner name: HUYCK WANGNER AUSTRIA GMBH, GERMANY

Free format text: TERMINATION AND RELEASE OF PATENT SECURITY AGREEMENT (FIRST LIEN);ASSIGNOR:CITICORP NORTH AMERICA, INC., AS COLLATERAL AGENT;REEL/FRAME:026384/0878

Effective date: 20110526

Owner name: XERIUM ITALIA S.P.A., ITALY

Free format text: TERMINATION AND RELEASE OF PATENT SECURITY AGREEMENT (FIRST LIEN);ASSIGNOR:CITICORP NORTH AMERICA, INC., AS COLLATERAL AGENT;REEL/FRAME:026384/0878

Effective date: 20110526

Owner name: XTI LLC, NORTH CAROLINA

Free format text: TERMINATION AND RELEASE OF AMENDED AND RESTATED PATENT SECURITY AGREEMENT (SECOND LIEN);ASSIGNOR:CITICORP NORTH AMERICA, INC., AS COLLATERAL AGENT;REEL/FRAME:026385/0562

Effective date: 20110526

Owner name: HUYCK WANGNER AUSTRIA GMBH, GERMANY

Free format text: TERMINATION AND RELEASE OF AMENDED AND RESTATED PATENT SECURITY AGREEMENT (SECOND LIEN);ASSIGNOR:CITICORP NORTH AMERICA, INC., AS COLLATERAL AGENT;REEL/FRAME:026385/0562

Effective date: 20110526

Owner name: XERIUM GERMANY HOLDING GMBH, GERMANY

Free format text: TERMINATION AND RELEASE OF PATENT SECURITY AGREEMENT (FIRST LIEN);ASSIGNOR:CITICORP NORTH AMERICA, INC., AS COLLATERAL AGENT;REEL/FRAME:026384/0878

Effective date: 20110526

Owner name: XERIUM CANADA INC., CANADA

Free format text: TERMINATION AND RELEASE OF AMENDED AND RESTATED PATENT SECURITY AGREEMENT (SECOND LIEN);ASSIGNOR:CITICORP NORTH AMERICA, INC., AS COLLATERAL AGENT;REEL/FRAME:026385/0562

Effective date: 20110526

Owner name: XERIUM GERMANY HOLDING GMBH, GERMANY

Free format text: TERMINATION AND RELEASE OF AMENDED AND RESTATED PATENT SECURITY AGREEMENT (SECOND LIEN);ASSIGNOR:CITICORP NORTH AMERICA, INC., AS COLLATERAL AGENT;REEL/FRAME:026385/0562

Effective date: 20110526

Owner name: WEAVEXX LLC, NORTH CAROLINA

Free format text: TERMINATION AND RELEASE OF AMENDED AND RESTATED PATENT SECURITY AGREEMENT (SECOND LIEN);ASSIGNOR:CITICORP NORTH AMERICA, INC., AS COLLATERAL AGENT;REEL/FRAME:026385/0562

Effective date: 20110526

Owner name: XTI LLC, NORTH CAROLINA

Free format text: TERMINATION AND RELEASE OF PATENT SECURITY AGREEMENT (FIRST LIEN);ASSIGNOR:CITICORP NORTH AMERICA, INC., AS COLLATERAL AGENT;REEL/FRAME:026384/0878

Effective date: 20110526

Owner name: XERIUM CANADA INC., CANADA

Free format text: TERMINATION AND RELEASE OF PATENT SECURITY AGREEMENT (FIRST LIEN);ASSIGNOR:CITICORP NORTH AMERICA, INC., AS COLLATERAL AGENT;REEL/FRAME:026384/0878

Effective date: 20110526

Owner name: XERIUM TECHNOLOGIES, INC., NORTH CAROLINA

Free format text: TERMINATION AND RELEASE OF PATENT SECURITY AGREEMENT (FIRST LIEN);ASSIGNOR:CITICORP NORTH AMERICA, INC., AS COLLATERAL AGENT;REEL/FRAME:026384/0878

Effective date: 20110526

Owner name: XERIUM TECHNOLOGIES, INC., NORTH CAROLINA

Free format text: TERMINATION AND RELEASE OF AMENDED AND RESTATED PATENT SECURITY AGREEMENT (SECOND LIEN);ASSIGNOR:CITICORP NORTH AMERICA, INC., AS COLLATERAL AGENT;REEL/FRAME:026385/0562

Effective date: 20110526

Owner name: XERIUM ITALIA S.P.A., ITALY

Free format text: TERMINATION AND RELEASE OF AMENDED AND RESTATED PATENT SECURITY AGREEMENT (SECOND LIEN);ASSIGNOR:CITICORP NORTH AMERICA, INC., AS COLLATERAL AGENT;REEL/FRAME:026385/0562

Effective date: 20110526

Owner name: WEAVEXX LLC, NORTH CAROLINA

Free format text: TERMINATION AND RELEASE OF PATENT SECURITY AGREEMENT (FIRST LIEN);ASSIGNOR:CITICORP NORTH AMERICA, INC., AS COLLATERAL AGENT;REEL/FRAME:026384/0878

Effective date: 20110526

AS Assignment

Owner name: PNC BANK NATIONAL ASSOCIATION, PENNSYLVANIA

Free format text: GRANT OF SECURITY INTEREST;ASSIGNOR:WEAVEXX, LLC;REEL/FRAME:030427/0542

Effective date: 20130517

Owner name: JEFFERIES FINANCE LLC, NEW YORK

Free format text: GRANT OF SECURITY INTEREST;ASSIGNOR:WEAVEXX, LLC;REEL/FRAME:030427/0555

Effective date: 20130517

AS Assignment

Owner name: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT, GE

Free format text: SECURITY INTEREST;ASSIGNOR:WEAVEXX, LLC;REEL/FRAME:036960/0944

Effective date: 20151103

Owner name: WEAVEXX, LLC, NORTH CAROLINA

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:PNC BANK, NATIONAL ASSOCIATION, AS COLLATERAL AGENT;REEL/FRAME:037044/0059

Effective date: 20151103

AS Assignment

Owner name: U.S. BANK NATIONAL ASSOCIATION, NORTH CAROLINA

Free format text: SECURITY INTEREST;ASSIGNOR:WEAVEXX, LLC;REEL/FRAME:039387/0905

Effective date: 20160809

Owner name: WEAVEXX, LLC, NORTH CAROLINA

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:JEFFERIES FINANCE LLC;REEL/FRAME:039637/0771

Effective date: 20160809