MXPA97004689A - Sewing for fabric of the machine pa manufacturer - Google Patents

Abstract

The present invention relates to a method for manufacturing a fabric for the papermaking machine by spirally winding a woven fabric strip, narrower than the considered width of the fabric, and the fabric for the papermaking machine is manufactured in accordance with this method. The fabric strip includes longitudinal and transverse threads, and has a side ridge along at least one side edge thereof, the side ridge being formed by the non-adhered ends of the transverse threads extending beyond the side edge. During the spiral winding of the flange strip, the side flange of a turn is superimposed or placed under an adjacent turn of the strip. The lateral edges of the adjacent turns embed against each other. The spirally continuous seam maintained is closed by ultrasonic welding or adhesion of the lateral flange superimposed or subjacent with the fabric strip in a turn adjacent.

Description

"SEAM FOR FABRIC OF THE MACHINE PAPER MANUFACTURER" BACKGROUND OF THE INVENTION The following invention relates to the formation of fabric seams in an endless loop for use as the fabric of a papermaking machine or as a component in the fabrics of the papermaking machine, such as fabrics. to form, press and dry, or as a base for industrial polymer-coated paper processing belts, such as the long press point belt. More specifically, the invention relates to the use of ultrasonic energy to produce a spiral continuous seam in the production of fabrics for a machine. The manufacture of paper from a relatively narrow woven fabric strip - bundled spirally.

DESCRIPTION OF TIP TECHNOLOGY Until recently, fabrics used as fabrics for papermaking machines have been woven in endless form, using a tubular weaving technique, or have been woven in a flat form and subsequently joined in a non-woven manner. end by means of a seam. In either case, because the fabrics for the paper machine have widths, measured transversely through their endless loop forms, of about 60 to 450 inches (1.5 to 11.4 meters), and lengths, Measured longitudinally around their non-linear loop forms, from 1 to 10 or more feet (of Jl or more meters), they require looms of various sizes, including large and very expensive weaving looms, for their production. Whether a fabric is woven endlessly, or woven flat and sewn endlessly, the weaving process is a time-consuming and very heavy operation. In a recent advance, described in U.S. Pat. UU No. 5,360,656 to Rexfelt et al., A press fabric consists of a base fabric that is made of a fabric of spun yarn material and is endless in the longitudinal (machine) direction thereof. One or more layers of fibrous material are arranged on the base fabric, and sewn into it. The base fabric of the press fabric consists of at least one layer composed of a spirally wound strip of spunbonded fabric having a width that is less than the width of the base fabric. The yarns considered along the spirally wound fabric strip of spun material form an angle with the longitudinal direction (of the machine) of the press fabric. The fabric strip of spun material can be woven flat on a loom that is narrower than those that are typically used in the production of the fabrics for the paper machine. The base fabric consists of a plurality of spirally woven and joined turns of the relatively narrow strip of woven fabric. The strip of fabric is woven from strands to l.pqo (u i i mbr o) and I f. ??; ve i:; a I is (stuffed). The adjacent turns of the spirally woven fabric strip can be recessed against each other, and the spirally continuous seam produced in this way can be closed by means of the stitching, by stitching, by melting or by welding. Alternatively, the adjacent longitudinal portions of the edge of the vucll.i;; (-: Pipers can be arranged to overlap, as long as the edges have a reduced thickness so as not to form a thickness that increases in the overlap area. along the length can be increased on the edges of the strip, so that, when adjacent spiral turns are arranged one above the other, there may be a spacing without change between the strands along the area of overlap. A woven base fabric, having an inner surface, an outer surface, a longitudinal direction (of the machine), and a transverse direction (through the machine) is the result.The side edges of the woven base fabric are then cut to make them parallel to their longitudinal (machine) direction The angle between the machine direction of the base woven fabric and the spirally continuous seam can be relatively small, that is, typically less than 10 °. In a method shown in U.S. Pat. UU No. 5,360,651"), the wrapping of 1 ar, wound around two parallel rolls to assemble the base woven fabric, It will be recognized that the endless fabrics of a variety of widths and lengths can be provided by the One-piece spiral winding t L vamonto anye.'jta of a strip of cloth woven around the two parallel rolls, the length of a particular base and endless cloth is determined by the length of each spiral loop of the strip woven fabric, and the width is determined by the number of spiral turns of the woven cloth strip.The main need when weaving complete base fabrics of specific lengths and widths according to an or-den can be avoided, therefore. Instead, a narrow loom such as 20 inches (0.5 meters) could be used to produce a woven cloth strip, but, for practical reasons, a conventional textile loom with a width of about 40 to 60 inches is preferred. (1.0 to 1.5 me tros). The manufacturing techniques shown in the Patent of USA No. 5,360,656 have several inherent advantages in terms of performance and cost. The present invention, wherein the ultrasonic energy is used to join adjacent turns of the woven fabric strip to one another, is delivered upon consideration of an improvement over prior technology. BRIEF DESCRIPTION OF THE INVENTION According to what has been described above, the present invention comprises both a method of manufacturing a fabric for the papermaking machine, and the fabric is made according to the method, wherein the adjacent turns of the strip Woven cloth are joined to each other by means of ultrasonic energy. The practice of the method consists of a first step of manufacturing a woven strip of fabric from longitudinal and transverse threads. The woven cloth strip can be heat set after being woven and stored on a roll of stock material for subsequent use. In any case, the woven cloth strip has a first side edge, a second side edge and a previously selected width which is measured between both before and which is typically much smaller than the width of the fabric of the papermaking machine that is will manufacture from the previous one. ? along at least one of the first and second lateral edges of the woven cloth strip and extending from there there is a side flange. The side rim is formed from the ends of the transverse threads extending from the body of the woven cloth strip. The fabric strip may be woven such that it is provided with a side ridge along at least one of the first or second side edges thereof. The fabric strip also has an upper side and a lower side and can be, as indicated above, narrow as 20 inches (0.5 meters) wide, but more practically can be from 40 to 60 inches (1.0 to 1.5 inches) meters) of width, which, in any case, is much narrower than the width, medi ot ransve i sa 1 moni e (in the cross direction of the machine), of a typical fabric of the machine manufacturer of paper. The fabric strip is then wound spirally, possibly around two parallel rollers, as indicated by dye t? O? ilion te, in a pluiality (W: turns), the winding is carried out in such a way that the lateral ridge of each turn is opposed to the top of the strip of Lola in an immediately adjacent turn, or extends below the underside of the fabric strip in an immediately adjacent turn, then, where the fabric strip has a lateral flange along both of its side edges, that a side edge of the strip fabric at each turn is placed on top of one side ridge on an immediately adjacent turn, and the other side edge of the fabric strip, on each turn, is under the side rim of the fabric strip on an immediately adjacent turn. the first side edge of each turn of the body of the fabric strip embeds against the second side edge of a turn immediately adjacent to the first, thus forming a spirally continuous seam separating the adjacent turns of the fabric. a strip of cloth. Beside the seam, in effect, the combination of a recess connection between the turns of the fabric strip body, and a lap joint formed by the overlap of the side flange, or by the placement of the side flanges with with respect to the body of the strip of cloth, in that they are above or below it. An ultrasonic welding apparatus and an anvil are then provided to close the spirally continuous seam. A longitudinal portion of the seam is compressed between the peak of the ultrasonic welding apparatus and the anvil, and the peak is activated to transmit ultrasonic energy there or to carry out the welding. Each longitudinal portion of the spirally continuous seam is treated in this manner to complete the operation. Preferably, the anvil is a cylindrical rotary or wheel-shaped piece having a circumferential surface against which the peak compresses the seam to effect the lock. In such a situation, the seam can be continuously driven in the longitudinal direction between the spout and the rotary anvil to close the seam by means of a continuous process. In this process, the lateral flange along each turn of the spirally wound cloth strip is ultrasonically adhered to the upper or lower side of the woven portion of an immediately adjacent turn. Where a side flange is provided along both side edges of the fabric strip, a side flange at each turn of the spirally wound fabric strip is ultrasonically adhered to the upper side of the woven portion of a loop immediately adjacent to it. , and the other side flange is ultrasonically adhered to the underside of the woven portion of a backward movement adjacent to or. When the spirally continuous stitching is completed, the result is an endless fabric of the papermaking machine having a machine direction around the endless loop form thereof, a direction transverse to the machine through the form of endless loop of it, an internal surface and an external superNeio. The endless yarn of the woven cloth strip is angled with respect to the machine direction of the endless fabric of the paper manufacturer. This angle, a measure of the spiral winding slope, is typically less than 10 °. Because the endless fabric of the papermaking machine is assembled by means of spiral winding, it is necessary to cut its side edges to make them parallel to the machine direction of the endless fabric of the paper manufacturer. The fabric of the paper manufacturer manufactured according to the present method can be used as a forming fabric or dryer fabric, as a component in a forming press or in a drying factory, or as a base for the processing belt of the coated paper industry by polymers, such as the long pressure point press belt. The forming fabric for a press or dryer, or the base for a process belt of the polymer-coated paper industry, may include two or more layers consisting of the paper manufacturer's fabric in accordance with the method presented here. Where this is the case, the adjacent layers can be rolled or moved in opposite directions. Particularly, when used as a component of a press fabric, it can be held by needles with a nonwoven block of staple fiber material or at least one of its inner and outer surfaces. The present invention will now be described in more detail by making repeated references to the figures that can be identified as follows. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic top view of the plane illustrating a method for manufacturing a papermaking fabric. Figure 2 is a top view of the finished fabric plane of the paper manufacturer. Figure 3 is a cross-sectional view taken as indicated by line 3-3 in Figure 1. Figure 4 is a cross-sectional view taken as indicated by line 4-4 in Figure 1, and shows the seam. before the lock of the same is made. Figure 5 is a partially transverse view showing, schematically, the manner in which the spirally continuous seam shown in Figure 4 is closed, in accordance with the present invention.

Figure 6 is a cross-sectional view taken as indicated by line 6-6 in Figure 1, and shows the seam after the lock. DETAILED DESCRIPTION OF THE PREFERRED INCORPORATION Referring now to the various figures, the Figure 1 is a schematic top view of the plane illustrating a method for manufacturing a fabric of the papermaking machine. The method can be practiced using an apparatus 10 consisting of a first roller 12 and a second roller 14, which are parallel to each other and which can be rotated in the directions indicated by the arrows. A strip 16 of woven fabric is wound from a roll 18 of stock material around the first roll 12 and the second roll 14 in a continuous spiral. It will be recognized that it may be necessary to move the roller 18 of stock material at an adequate speed along the second roll 14 (located to the right in Figure 1), as the cloth strip 16 is wound around the rolls 12, 14 The first roller 12 and the second roller 14 are separated by a distance D, which is determined with respect to the total length, C, which is required for the fabric of the paper manufacturer being manufactured, the total length, C , is measured longitudinally (in the machine direction) around the endless loop shape of the paper manufacturer's fabric. The strip 16 of woven fabric, having a width W, is wound spirally around the first and second rollers 12, 14 in a plurality of turns from the roll 18 of stock in stock, and which can be translated around the second roll 14 during winding. The successive turns of the fabric strip 16 are positioned in relation to one another in the manner that will be illustrated below, and are adhered with one another along a spirally continuous seam 20 to produce a fabric 22 of the paper manufacturer as shown in Figure 2. When a sufficient number of turns of the strip 16 of fabric have been made to produce a paper 22 of the paper manufacturer of the desired width W, in which that width is measured transversely (in the direction transverse to the machine) through the endless loop form of the fabric 22 of the paper manufacturer, it is concluded with the spiral winding. The fabric 22 of the papermaking machine thus obtained has an internal surface, an external surface, a machine direction and a cross machine direction. Initially, it is apparent that the side edges of the papermaker's fabric 22 will not be parallel to the machine direction, and should be trimmed along the lines 24 to provide the papermaker's fabric 22 with the desired width , and with two lateral edges parallel to the machine direction of its endless loop shape. The fabric strip 16 can be woven from strands of monolayer, folded monolayer, or many filaments of a synthetic polymeric resin, such as polyester or polyamide, in the same way as other fabrics used are woven. in the papermaking industry. After weaving, it can be thermally set in a conventional manner prior to provisional storage on a roll 18 of material, in stock. The fabric strip 16 includes longitudinal strands and transverse strands in which, for example, the longitudinal strands can be folded monofilament yarns, while the transverse strands can be monofilament yarns. In addition, the fabric strip 16 may be a single layer or multiple layer fabric. Alte ni l ivainenl e, l ula 1 (tola) can be woven and thermally set in a conventional manner, and fed directly to the apparatus 10 of a thermal setting unit without temporary storage on a roller 18 of material in stock It may also be possible to eliminate the thermal setting by means of the appropriate selection of the material and the construction of the product (fabric, thread sizes and number and size of the threads) In such a situation, the strip 16 of fabric would be fed to the apparatus 10 from the weaving loom without temporary storage on a stock roll 18. Figure 3 is a cross-section of the strip 16 of cloth taken as indicated by line 3-3 in Figure 1.

It consists of 26 non-linear strands and transversal strands, in which both are represented as monofilaments, woven into a single-layer fabric. More specifically, a simple fabric is shown although, it should be understood, the fabric strip 16 may be woven according to any of the commonly used fabric patterns for weaving the fabrics of the paper machine. Because the fabric strip 16 is wound spirally to assemble the fabric 22 of the paper manufacturer, the longitudinal threads 26 and the transverse threads 28 do not align with the directions of the machine and transverse to the machine, respectively, of the fabric. 22 from the paper manufacturer. Instead of the above, the longitudinal threads 26 form a slight angle, 0, whose magnitude is a measure of the pitch of the spiral windings of the fabric strip 16, with respect to the machine direction of the fabric 22 of the fabric. paper manufacturer, as suggested by the planar top view thereof shown in Figure 2. This angle, as noted previously, is typically less than 10 °. The woven cloth strip 16 has a first side edge 30 and a second side edge 32. Along the first and second lateral edges 30, 32, of the fabric strip 16 there is a first side rim 34 and a second side rim 36, respectively. The first and second lateral flanges 34, 36 are the ends of the transverse strands 28 which are not adhered by the longitudinal strands 26 and extend further to the first and second lateral edges 30, 32. Alternatively, only one of the first and second side edges 30, 32 may have a side flange. The lateral flange or flanges 34, 36 may be provided by removing one or more longitudinal strings 26 from the lateral edge or edges 30, 32. Alternatively, the fabric strip 16 can be woven fabric provided with a first and / or second side flanges 34,36 without requiring the removal of longitudinal strands 26 of the first and / or second side edges 30,32 of the same In any case, the first and second lateral edges 30,32 define the width of the body of the woven strip 16 of fabric. L? Figure 4 is a cross-sectional view taken as indicated by line 4-4 in Figure 1 and is provided to illustrate the manner in which the cloth strip 16 is wound on the first and second parallel rollers 12,14. to form a spirally continuous seam 20. When the first of a plurality of spirally wound turns of the fabric strip 16 is completed, successive turns are placed in such a manner that the first side edge 30 of the strip body embeds against the second side edge 32 of the previously coiled turns of the strip. body of strip 16 of cloth. As a consequence, the second lateral flange 3b of each turn is placed below the first lateral edge 30 of the subsequent subsequent turn. Also, as shown in Figure 4, the first lateral re-edge 34 of each turn after the first is placed on top of the second lateral edge 32 of the immediately preceding turn. According to the present invention, the first and second lateral flanges 34,36 thus placed are ultrasonically adhered to the second and first edges 32, 30, respectively, of the woven fabric strip 16 on or under which they are placed. Referring to Figure 5, the spirally continuous seam 20 illustrated in Figure 4 is shown schematically between the peak 40 of an ultrasonic welding apparatus and an anvil 42. The anvil 42 is preferably a rotating cylinder part or in the form of the wheel, whose outer circumferential surface 44 functions as the surface on which the bead 40 presses the seam 20 esp ir 1 continuous mount for its ultrasonic welding. In order to carry out the welding or adhesion, the ultrasonic welding apparatus is activated so that the peak 40, while compressing the spirally continuous seam 20 against the surface 44 of the anvil, vibrate at an ultrasonic frequency to adhere the first and / or the second flanges 34,36 lateral to the second and / or first lateral edges 32,30, respectively , from strip 16 of fabric. The outer circumferential surface 44 of the anvil 42 is preferably grooved in a relatively deep pattern so that spot welding occurs instead of a rondeau soldaduia. The I p? O? O or I n mode I or Ifrnoni-no, medium, in rhombic form. This gives the spirally continuous seam 20 an opening and porosity comparable to those of other regions of the fabric. A rotary anvil, such as the anvil 42 facilitates continuous welding or adhesion of the spirally continuous seam 20 by allowing the seam 20 to be continuously run between the spout 40 and the rotary anvil 42 in the manner suggested by the arrows in Figure 5. In such a situation, the spout 40 and the anvil 42 can remain fixed, while the spirally continuous seam 20 is run between them for joining. It may be more practical, however, to keep the spout 40 and the anvil 42 fixed relative to each other, and to move them laterally together in a direction parallel to the first and second parallel rollers, in the same way as it is transferred to the roller. 18 of stock material, while the spirally continuous seam 20 passes between the spout 40 and the anvil 42 to close the seam 20. It may be even more practical to keep the spout 40 and the anvil 42 fixed relative to each other as well. as stationary, and transporting the fabric 22 from the paper manufacturer later as the spirally continuous seam 20 is closed. In this case, the roller 18 of stock material can remain in a fixed position relative to the pick 40 and the anvil 42. In either case, the plates 46 are provided to hold the strip 16 of fabric on both sides of sewing 20 spirals continues. Figure 6 is a cross-sectional view taken as indicated by line 6-6 of Figure 1, and shows the seam after closure by means of ultrasonic welding. The first side rim 34 is adhered to the top of the second side edge 32, while the second side rim 36 is adhered to the bottom side of the first side edge 30, thereby closing the spirally continuous seam 30. The following Example is presented to illustrate the present invention: EXAMPLE An Branson Model FS-90 ultrasonic welding station was used to form seams of the above-disclosed type. The fabric strip used was a nylon fabric of 9 oz / yd2 (300 g / m2), woven from the weft of monofilament threads and warp of folded monofilament strands in a simple single layer weave pattern, of a type commonly used as a press cloth base. The ultrasonically spirally continuous seam was prepared as follows: 1. The warp of strands was unraveled (removed) from the edges of the strip of fabric to be joined so that a 5/32 inch flange was exposed ( 4 mm) of filling yarn. This ridge, in an application of the production, could have been the original one and the second one. 2. The two edges of the strip of fabric to be joined were hooked so that the rim of a first strip of fabric overlaps the top side of a second edge of fabric, and the rim of the second t J rado Fabric was placed under the bottom side of the first strip of fabric. the completely woven portions, without flanges on the edges of the opposite fabric strips, were closed together in a closed manner in a common plane. In effect, the portions with rims of the orifices formed an overlap joint and the completely woven portions of the urine urinated a union dn empot amient. 3. A rotary wheel of 2.5 inches (64 mm) in diameter, 0.25 inch (6.4 mm) wide was used as the anvil for the ultrasonic welding station. The wheel's 0.25-inch-wide surface had been ridged to obtain a female, medium-sized rhombic stria. With the eyelets of the tola wrath held in the above-specified hooking, they were passed between the rotary anvil and the flat face peak, of ultrasonic vibration at a feed rate of 10 ft / mm (3 m / min), although They can use faster feed speeds. This step of ultrasonic welding provided a very suitable seam for the purpose for which it is desired. Tension tests were made through the seam and provided an average seam strength of 34.0 lb / in (5.95 kN / m). ? In this way, the direction of filling force of the fabric strip was measured and was approximately 171 lb / in (30 kN / m), which makes the average strength of the seam about 20% the force of filling direction. This was found most suitable for the application. Measurements were made of the difference in thickness between the seam and the rest of the fabric wrath, which was approximately 0.032 inches (0.81 mm) thick. Seam thicknesses were typically found from about 0.001 to 0.002 inches (0.025 to 0.050 mm) greater or less than the thickness of the fabric strip itself. In an extreme case, the seam was 0.007 inches (0.18 mm) thicker than the fabric strip. Visual inspection of the seam indicated that a large amount of fabric opening was retained in the seam. Modifications of the above would be obvious to those of normal skill and knowledge of cutting-edge technology, but would not in any way modify the invention beyond the scope of the attached clauses. For example, as already discussed above, the invention can be practiced by providing only one of the two lateral edges of the strip 16 woven of fabric with a lateral flange, both by removal of one or more longitudinal strands 26 of a single one. of the two lateral edges or when weaving the strip 16 of fabric in such a way that it is provided with a lateral flange along one of its two lateral edges.

An anger I 6 knitted to that I have a rim? Laterally only along one of its side edges is spirally wound so that the side flange overlaps or is below the side edge of an adjacent turn of the fabric strip. In other words, the invention is practiced as described herein, except that the second flange is omitted} (> lateral.) The seam 20 ospi ra 1 continuous mind can then be characterized as the combination of an embedding bond between the first and second lateral edges 30,32 of a strip 16 of fabric and an overlap joint formed by the position of the lateral flange superimposed or under the adjacent turn of the fabric strip 16 in a turn thereof Finally, it should be understood that while, in the method illustrated above, the lateral flange 34 of the subsequent turns of the strip Fabric IB overlays the second lateral edge 32 of those previously wound up, those of normal skill in the latest technology can take a different approach to the invention without departing from the scope thereof as defined in the attached clauses. subsequently rolled turn of strip 16 of fabric can be placed under the second lateral edge of the previously rolled loop with the result that the side flange 34 it is below the second side edge 32 of the previous turn. If the 1-fold strip, in this case, includes both a first and a side edge 34,36, a second edge 3b will be placed, as a consequence, on the first side edge 30 of the next turn.

Claims (24)

1. NOVELTY OF THE INVENTION Having described the foregoing, it is considered as a novelty and, therefore, the content of the following clauses is claimed as property. CLAUSES 1. A method for manufacturing a fabric for the papermaking machine consisting of the steps of: a) manufacturing a woven strip of fabric from longitudinal and transverse strands, said woven fabric strip having a first side edge, a second lateral edge, and a previously selected width measured therethrough between said first and second lateral edges, which define a woven fabric strip body, said woven fabric strip also has a first lateral edge along and extend - passing beyond said first lateral edge, wherein said first lateral edge is formed by the ends of said transversal strands; b) spirally winding said strip of fabric in a plurality of turns wherein said first side edge in a turn of said body of woven fabric strip embeds against said second side edge of an adjacent turn of said body of woven fabric strip, wherein said first lateral flange in a turn of said woven fabric strip overlaps or is placed below said woven cloth strip in an adjacent turn of the same, thus forming a solid seam I pten I o ront i nua separating the adjacent turns of said woven cloth strip; r) providing an ultrasonic welding apparatus having a peak for transmitting ultrasonic energy to said spirally continuous seam; d) provide an anvil against which said peak could rupture a portion of the continuum; e) compressing said portion of said continuous spiral seam between said peak and said anvil; f) activating said peak to transmit ultrasonic energy to said portion of said spirally continuous seam; and g) moving said alternating seam stitch continuous longitudinally relative to said peak and said anvil to close said continuous seam by adhesion of said first lateral flange to said woven cloth strip in an adjacent turn thereof.
2. 2. The method as claimed in Clause 1, wherein said step of manufacturing a woven cloth strip comprises the step of removing at least one longitudinal thread from the edge of the same to provide said first side flange at least. along said first side edge.
3. 3. The method as claimed in Clause 1, wherein said tola woven strip also has a second side ridge extending along and beyond said second side edge; said second; Jateral flange is also formed by the ends of said transverse strands.
4. 4. The blunt method is claimed in Clause 3, wherein said step of manufacturing a woven cloth strip comprises the step of removing at least one longitudinal strand from one edge thereof to provide said second lateral shoulder at a length of dn. said. second side bank.
5. 5. The method as claimed in Clause 1, wherein said woven cloth strip is made of a single layer fabric.
6. 6. The method as claimed in Clause 1, wherein said woven cloth strip is a multi-layer fabric. /.
7. The blunt method is claimed in Clause 1, wherein said longitudinal and transverse threads are from a synthetic polymeric resin.
8. 8. The method as claimed in Clause 1, wherein the step of spirally winding said fabric strip is carried out by the spiral winding of said fabric strip around at least two parallel rollers.
9. 9. The method as claimed in Clause 1, which also comprises the step of thermal lightening of said woven cloth strip after the step of manufacturing said strip of fabric.
10. 10. The method as claimed in Clause 1, which also comprises the step of trimming said fabric from the paper manufacturer to provide said web of the papermaking machine with parallel side edges one with respect to the others and with respect to The address of the machine itself, and to define a width of said fabric.
11. 11. The method as claimed in Clause 1, wherein said anvil is a circumferential surface of a rotating cylindrical part.
12. 12. The method as claimed in Clause 11, wherein said circumferential surface is grooved.
13. A fabric for the papermaking machine comprising a strip of fabric woven from longitudinal strands and transverse strands, said fabric strip having a first side edge and a second side edge separated by a body of woven fabric strip, said first side edge has a first side rim, formed by the ends of said transverse threads extending beyond said first side edge, said web strip being spirally wound in a plurality of contiguous turns wherein said first side edge on a side a turn of said fabric strip body embeds with said second side edge of an adjacent turn of the strip, thereby forming a spirally continuous seam separating the adjacent turns of said fabric strip, said spirally continuous seam being closed by means of ultrasonic adhesion with said first lateral flange to said fabric strip at the laryo of said second lateral edge at u The return is adjacent to the same, thus providing an endless fabric for the papermaking machine, having a machine diameter, a machine-transverse direction, an internal surface and an external surface.
14. A fabric for the papermaking machine as claimed in Clause 13, wherein said second side edge of said fabric strip has a second side edge formed by the ends of said transverse strands extending beyond said second. lateral edge, and wherein said second lateral edge is ultrasonically adhered to said strip of fabric along said first side edge in an adjacent turn thereof.
15. 15. A fabric for the paper manufacturer as claimed in Clause 13, wherein said fabric strip is made of a single layer fabric.
16. 16. A fabric for the papermaking machine as claimed in Clause 12, wherein said strip of fabric is made of a multilayer fabric.
17. 17. A fabric for the papermaking machine as claimed in Clause 13, wherein said longitudinal strands and said non-visible strands are of a synthetic polymer resin.
18. 18. A fabric for the papermaking machine as claimed in Clause 13, having side edges cut in a direction parallel to the machine direction. I1).
19. One will read the machine (paper opening as claimed in Clause 13, where said fabric for the papermaking machine is a part of a forming fabric.)
20. 20. A fabric for the papermaking machine as described in FIG. Claims in the Clause, wherein said fabric for the papermaking machine is a part of a press fabric
21. 21. A Lola (the paper manufacturer is claimed in Clause 20, which also comprises a block of nonwoven and non-woven staple fiber material within at least one of said inner and outer surfaces of the same fabric
22. 22. A fabric for the papermaking machine as claimed in Clause 13, wherein said fabric for the paper manufacturer is a part of a dryer fabric
23. 23. A fabric for the papermaking machine as claimed in Clause 13, wherein said fabric for the paper manufacturer is a part of a fabric. base for a coated processing belt polymer resin resin from the paper industry.
24. 24. A fabric for the papermaking machine as claimed in Clause 13, wherein said longitudinal strands of said fabric strip form an angle less than 10 ° with respect to a machine direction of said fabric of the manufacturing machine of paper .