US3707752A - Roll covering - Google Patents

Roll covering Download PDF

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Publication number
US3707752A
US3707752A US00084782A US3707752DA US3707752A US 3707752 A US3707752 A US 3707752A US 00084782 A US00084782 A US 00084782A US 3707752D A US3707752D A US 3707752DA US 3707752 A US3707752 A US 3707752A
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Prior art keywords
roll
percent
strip
fibers
tension
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Expired - Lifetime
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US00084782A
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English (en)
Inventor
D Brafford
R Adams
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Beloit Corp
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Beloit Corp
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    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/02—Rolls; Their bearings
    • D21G1/0246—Hard rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D99/00—Subject matter not provided for in other groups of this subclass
    • B29D99/0032—Producing rolling bodies, e.g. rollers, wheels, pulleys or pinions
    • B29D99/0035—Producing rolling bodies, e.g. rollers, wheels, pulleys or pinions rollers or cylinders having an axial length of several times the diameter, e.g. for embossing, pressing, or printing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/32—Wheels, pinions, pulleys, castors or rollers, Rims
    • B29L2031/324—Rollers or cylinders having an axial length of several times the diameter, e.g. embossing, pressing or printing

Definitions

  • ABSTRACT A roll capable of operating at high speeds and high nip pressures having an outer shell of a composite material formed by bonding a needled nonwoven mat of either acrylic fibers, polyester fibers or mixtures of these fibers with an epoxy resin so that ten to forty percent by weight of the composite is fiber.
  • the covering above described may be manufactured by winding a continuous strip of the mat, said mat having been saturated with the resin onto a roll at a uniform speed and with a lead sufficient to build a plurality of layers in one pass while simultaneously unwinding the strip from a strip holding means under brake tension to permit winding so as to decrease the width of the strip by at least three percent.
  • a roll requires that it be capable of rotation, oftentimes in a load bearing arrangement. As industrial processes become more sophisticated, and greater production is sought, oftentimes the roll must operate under conditions where the peripheral speed of the surface exceeds 6,000 ft. per minute or nearly 70 miles an hour. Also, the force against which the roll is bearing may exceed 1,000 pounds per linear inch of roll face width. The environment in which these operations take place may be corrosive, changing in temperature, or otherwise adverse. Moreover, the surface of the roll may be required to contact products which may be damaged by the roll if the surface is not sufficiently free from abrasiveness or other damaging characteristics. It is imperative from an economic standpoint that a roll be developed that has a substantially increased cover life.
  • Another object of this invention is to provide a roll covering which is suitable for use in the paper making process.
  • Another object of this invention is to provide a roll covering derived from a composite material or from a needled nonwoven mat selected from a group consisting of acrylic fibers, polyester fibers and mixtures thereof and bonded with an epoxy resin.
  • Yet another object of this invention is to provide a method for manufacturing a roll according to the present invention.
  • Still another object of this invention is to provide a method for manufacturing a roll capable of operating at high speeds and under high loading for sustained periods of time.
  • a roll may be made which is capable of operating at speeds in excess of 6,000 ft. per minute and at nip pressures in excess of 1,000 lbs. per linear inch for a substantially extended period of time.
  • This roll has an outer cover or shell comprising a composite material formed from a needled nonwoven mat selected from the group consisting of acrylic fibers, polyester fibers and mixtures thereof. This mat has been bonded with a therrnosetting resin of the epoxy type.
  • the composite has from 10 to 40 percent by weight of fibers and from 90 to 60 percent by weight of resin.
  • a preferred range of said fibers is from 15 to 30 percent, with 85 percent to percent by weight of said resin. Most preferred is a composite material containing from 20 percent to 25 percent of said fibers and from percent to 75 percent by weight of said resin.
  • needled nonwoven i'nat as used herein refers to a mat of nonwoven fibers the tensile strength of which is greatly improved by a standard needling process well known to those versed in the art.
  • the rolls made in accordance with the presentinvention preferably have a ratio of the modulus of elasticity of the fibers prior to their being used to the modulus of elasticity of the cured resin ranging from 10:1 to 1:10. Most preferred is the instance where the above ratio of modulus of elasticity of fibers to resin ranges from 3:2 to 2:3.
  • nonwoven needled mat of either acrylic fibers, polyester fibers, or mixtures thereof, having a weight of at least 4 ounces per square yard. Most preferred is a mat having a weight of at least 10 ounces per square yard.
  • resin it is preferred to use an epoxy type resin having an epoxide equivalent weight of at least 100. Most preferred is an I epoxide equivalent weight of from to 200.
  • rolls made of the composite material may be manufactured to include a plurality of land areas adjacent one another so as to define a plurality of grooves in a generally circumferential direction on the roll surface. It is preferred to construct rolls with grooves such that there are at least four grooves per inch of axial length.
  • the rolls having a composite material cover derived from a needled nonwoven mat of either acrylic fibers, polyester fibers, or mixtures, and bonded with an epoxy type resin may be manufactured according to the following method.
  • the method comprises the steps of winding a continuous strip of the mat after the mat has been saturated with said resin, onto a roll shell at a uniform speed and with a lead sufiicient to build up a plurality of layers of said mat in one pass. Simultaneously with the winding step, the strip is unwound from a strip holding means under sufficient brake tension or back tension to cause tension in the strip as it contacts the roll shell.
  • This back tension or brake tension should be sufficient to permit winding the strip on the roll so as to decrease the width of the strip by at least 3 percent.
  • the lead nip may be adjusted or controlled to achieve the desired thickness of the finished cover in one pass. Due to the construction of a needled nonwoven mat, tension has the effect of stretching the mat in the direction of the tension, with an accompanying decrease in the width of the strip.
  • the strip is saturated with the resin prior to the winding. Once the saturated strip has been wound on the roll, the resin is allowed to cure to form the composite material. Simple machining then prepares the surface for use.
  • One advantage of the composite material of the present invention when used as a roll covering surface, is that simple machining may prepare the roll for any use desired. For example, it is relatively simple to crown the roll as is conventional. A smooth surface can readily be placed on the roll shell. Moreover, grooves may be made in the roll in a generally circumferential direction to permit the use of the roll in the many instances where circumferential grooving is desired to assist in fluid removal, for example.
  • the preferred method for creating brake tension in the strip, against which the winding tension operates is to restrain the strip holding means from which the strip is unwound.
  • the brake tension is controlled by passing the strip over a dancer roll means to position a dancer roll in response to the amount of brake tension in the strip.
  • the dancer roll means includes a device for adjusting the brake tension and thereby adjusts the position of the dancer roll. This means for adjusting the brake tension can be set to continuously adjust the position of the dancer roll to a desired position such that the brake tension is sufficient to decrease the width of said strip by at least 3 percent during winding.
  • a constant amount of brake tension can be provided so that the amount that the width of the strip is decreased, whether 3 percent or 6 percent or whatever, remains constant within the limits of the apparatus. Varying weights in varying positions on the dancer roll will permit adjustment of the tension in the strip at this point, since the strip supports the weight of the dancer roll.
  • the brake tension which is necessary to the manufacture of the roll may be stabilized by passing the strip oover a plurality of sliding tension surfaces. These sliding tension surfaces are balanced against a spring balancing tension, such that the degree of sliding tension varies with the amount of spring balancing tension to eliminate substantial changes in the brake tension.
  • FIG. 1 is a simple perspective view of a roll having a covering according to the present invention
  • FIG. 2 is a partially cutaway view showing the covering of the present invention which has been provided with land areas and grooves;
  • FIG. 3 represents a schematic drawing showing a method of manufacturing a roll according to the present invention
  • FIG. 4 is a schematic drawing showing the effect of sliding tension on the present invention.
  • FIGS. 5A, 5B, and 5C are schematic figures showing the effect of nip pressures and speeds on various covering materials.
  • a roll covering 14 As shown in FIG. 1, a roll covering 14 according to the present invention has been placed on a core 12 of a roll having journals 10.
  • the roll covering 14 may be provided with a plurality of land areas 16, as shown in FIG. 2, so as to define a plurality of grooves 18 in a generally circumferential direction on the roll surface. As has been stated above, it is preferred that there be at least four grooves per inch of axial length.
  • the composite material from which the outer shell or covering of the roll of the present invention is made is derived from a needled nonwoven mat bonded with an epoxy type resin. It is preferred that the amount of resin in the finally cured roll range from 60 to 90 percent by weight. More preferred is a composite in which from percent to 85 percent by weight of the material is resin. Ideally, percent to percent by weight of the composite material should be cured resin.
  • the resin itself may be any of the epoxy type resins which are commercially available. Many manufacturers have for sale an epoxy type resin, most of which are prepared from an epoxide which contains epoxy groups that are cured with either diamines or dibasic anhydrides.
  • Epoxides are prepared in a number of ways, such as by the reaction of phenol and acetone to produce Bisphenol-A, which in turn is reacted with epichlorohydrin to yield the epoxy intermediate. Polyamines or other conventional curing agents are then reacted with the epoxy intermediate to produce the final resin. It is preferred that the epoxy type resin contain an epoxide equivalent of at least and it is most preferred that the epoxide equivalent weight range from to 200.
  • the mat which forms the balance of the composite material of the present invention ranges from 10 percent to 40 percent by weight of the total composite. It is preferred that from 15 percent to 30 percent by weight of the composite be fibers and ideally, from 20 to 25 percent of the composite material will be fibers.
  • the fibers from which the needled nonwoven mat are made of either acrylic fibers, polyester fibers or mixtures thereof. Acrylic and polyester fibers are widely available on a commercial scale.
  • needled nonwoven mats are prepared in the following manner.
  • a felt or web of the fibers is first prepared. These fibers may be unsupported or they may be supported by a thin woven support which forms a small percentage of the total material.
  • This web of fibers is then passed through a needling board in a conventional manner in which a plurality of barbed needles are passed into and out of the web, mechanically entangling and felting the fibers.
  • High speed commercial operations are presently employed which operate at up to and exceeding 900 needleboard lifts per minute, which is to say that a plurality of needles contained. on a board are inserted into the web and removed at least 900 times per minute as the web passes by the needling position of the manufacturing process.
  • FIG. 3 schematically shows the method of the present invention for preparing rolls containing the composite material described above.
  • a strip of the needled nonwoven mat is contained on a spool 21 mounted on a lazy Susan type strip holding means 22 in the form of a continuous strip.
  • the roll 60 which is to be covered is rotated by a drive means (not shown) in the direction of arrow 49.
  • This rotation of roll 60 provides a winding tension which causes the strip 20 which is saturated by a resin to be continuously wound onto the roll 60, with a slight lead such that the strip partially overlaps itself to form a plurality of layers of said mat 20 on the roll 60 in one pass.
  • the strip 20 is further subjected to brake tension in the reverse direction of the tension caused by rotation of the roll 60 in the direction of arrow 49 so as to decrease the width of said strip by at least 3 percent.
  • the tension under which the strip 20 is applied to the roll 60 is sufiicient to stretch the trailing edge of the strip 20 by at least 3 percent more than the leading edge is stretched, at the point of contact of said strip on said roll.
  • the strip 20 passes through a dancer roll means which includes idler rolls 25 and 26 and dancer roll 27, as shown in FIG. 3.
  • Dancer roll 27 is supported by pivot arm 28 about pivot point 29.
  • a weight 30 is added to provide the ideal brake tension necessary to accomplish the proper winding under tension.
  • a sensing device 31 Responsive to the position of the dancer roll 27 and attached to the pivot arm 28 is a sensing device 31 which may be a conventional air supply valve which is adjustable by movement of the pivot arm 28. Air is then passed through line 32 to air brake 33 which, depending upon the position of the dancer roll 27, acts to retard the rotation of the lazy Susan 22 to a varying degree.
  • the strip 20 is then passed over a plurality of slide tension surfaces which are as shown in FIG. 3 consist of a plurality of nonrotating bars 36, 37, 38, 39 and 40.
  • a plurality of slide tension surfaces which are as shown in FIG. 3 consist of a plurality of nonrotating bars 36, 37, 38, 39 and 40.
  • the amount of tension T1 is equal to the force pulling the material over the surface T2 times e (approximately 2.72 the number upon which the natural logarithm system is based) raised to the power formed by the product of the coefficient of friction f and the angle of wrap a in radians.
  • e approximately 2.72 the number upon which the natural logarithm system is based
  • the sliding tension surfaces 36, 37, 38, 39 and 40 provide a sliding tension which is balanced against a spring tension.
  • the sliding members 37 and 39 are mounted on members 41 and 42.
  • Spring means 43 is connected to the opposite ends of members 41 and42 so as to attempt to draw members 37 and 39 towards v each other.
  • the net result of all of the balancing of tensions is to create a constant winding tension which is capable of decreasing the width of the web 20 as it is applied to the roll 60 under winding tension-By proper selection of values, depending upon the particular fibers and the density of the needled nonwoven mat (braking strength) suitable brake tension can be achieved to decrease the width of the web by at least 3 percent.
  • a number of rolls have been prepared using this process wherein a 6-inch wide strip has been wrapped on a roll such that the width of the strip at the point of contact with the roll was slightly greater than 8; inches.
  • an excess of resin is applied, perhaps as much as two or three times as much as needed, which excess is later drained from the roll prior to curing of the resin and collected in tank 50.
  • the tension under which the roll is being wound acts to squeeze excess resin from the saturated mat, so as to leave a mat containing from 10 to 40 percent by weight of fibers and 90 to 60 percent by weight resin.
  • Preferred composite materials contain from percent to 30 percent by weight fibers and from 85 percent to 70 percent by weight of said resin. Ideally, it has been found that composite materials containing from percent to percent by weight of fibers have been from 80 percent to 75 percent by weight of resin are preferred.
  • the roll may be used in the textile industry, metal working, printing, and other industries which require the use of rolls. Many uses in the paper industry have been found for rolls having the composite material covering of the present invention.
  • rolls made according to the present invention which have been grooved with generally circumferentially oriented grooves are particularly suitable in press sections in the paper making industry.
  • a number of trials have demonstrated that the covers of the present invention have the following advantages. There is no groove closing during operation, and a permanent crown may be placed on the roll due to the zero creep of the material. Moreover, operation under varying temperature conditions is possible without the adverse effects found when land areas crack when using other cover materials. Oftentimes, the interior of a surface will be at a substantially higher temperature than the surface which is receiving cooling, either intentionally from showers or by the water present in the paper. Composites of the present invention have been found to withstand these variations in temperature without cracking the lands whereas rubber and other materials do not. Moreover, no effect has been observed when these rolls have been contacted with chemicals and solvents used as felt cleaners in press sections.
  • the fiber pickup in the grooves is kept to an absolute minimum, since the composite itself may be readily machined and polished to a smooth finish.
  • the speed of the stainless steel roll SS at it surface S is governed by the driving speed of the roll SS. Since the stainless steel roll SS is the driving roll, the speed of the rubber covered roll R at the nip SN is equal to the speed S of the stainless steel roll. However, since rubber is incompressible and elastic, the surface of the roll at the nip is stretched, thus the speed of the rubber covered roll R at its surface at a point away from the nip SR is less than the speed of the stainless steel drive roll SS. With each revolution of the rubber covered roll, the surface speed will change. This constant change of surface speed soon destroys the rubber covering.
  • FIG. 5B Shown in FIG. 5B is an instance where a stainless steel roll SS is mated with a filled roll F under similar circumstances.
  • the speed S of the stainless steel roll SS, the driving roll is constant around the entire circumference. This speed S is equal to the speed SN at the nip of the filled roll F.
  • the filled roll is compressible, the surface is compressed at the nip, and the surface speed SF of the filled roll F at a point away from the nip is greater than the speed S of the stainless steel roll SS. Again this constant rapid change in the speed of the surface of the filled roll soon destroys the roll.
  • FIG. 5C Shown in FIG. 5C is a similar arrangement using a stainless steel roll SS as a driving roll and a roll C formed according to the present invention.
  • the speed S of the stainless steel roll SS again remains constant.
  • This speed S since the stainless steel roll SS is the driving roll, is equal to the speed SN of the roll C at the nip.
  • the roll according to the present invention is capable of being stretched, as is rubber, an effect similar to that of FIG. 5A is found.
  • the composite of the present invention is also capable of being compressed, the effect on the surface as shown in FIG. SB is also found.
  • the speed SC of the roll C according to the present invention does not change with respect to the speed S of the stainless steel roll or the speed SN of the nip.
  • the surface itself does not change speed.
  • the substantial increase in the life of the surface of a roll having the composite of the present invention is not only theoretically predictable but has been observed experimentally. This substantial improvement in the life of the roll covering has made feasible the economics of such a paper making apparatus.
  • the rolls made as described herein have particularly advantageous properties which were not expected.
  • the composite has a high modulus elasticity (both fiber and resin) which is not obtainable in compounded elastomers of hardness necessary for use in commercial practice.
  • the roll covers have an unusual ability to withstand high nip loads and speeds and yet are capable of sustaining very severe shock loads without damage. It has extremely low hysteresis.
  • the composite as described herein has practically no creep under dynamic conditions, resulting in a non-marking cover. The essentially zero flow of the material permits maintenance of the crown shape, eliminates corrugation and prevents groove closing. As mentioned above, there is no variation in the surface speed entering and leaving the nip region.
  • rolls of the present invention may be employed in a wide variety of industries for a substantial number of uses. In those instances where the roll must operate at high speed and/or under high loading conditions, use of the rolls of the present invention will offer substantial increases in the life of a roll covering and will materially improve the practice of the particular process.
  • rolls according to the present invention may be used as press rolls, calender pressure rolls, suction rolls (with holes drilled in a conventional manner), grooved suction rolls, rolls where the amount of crown is variable, suction pressure rolls, wet end rolls (such as breast rolls,
  • the range of roll surface hardness may be provided by a suitable choice of fiber density, and resin.
  • a roll adapted to operate at high speed and high nip pressures having an outer shell comprising:
  • a composite material formed from plura! layers of a needled nonwoven mat selected from the group consisting of acrylic fibers, polyester fibers and mixtures thereof,
  • thermosetting resin of the epoxy type being bonded with a thermosetting resin of the epoxy type.
  • a roll adapted to operate at high speed and high nip pressures having an outer shell comprising:
  • a composite material formed from plural layers of a needled nonwoven mat selected from the group consisting of acrylic fibers, polyester fibers and mixtures thereof,
  • said layers being bonded with a thermosetting resin of the epox t pe said compost e avrng from 10 percent to 40 percent by weight of said fibers and from 90 percent to 60 percent by weight of said resin.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Laminated Bodies (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Moulding By Coating Moulds (AREA)
US00084782A 1970-10-28 1970-10-28 Roll covering Expired - Lifetime US3707752A (en)

Applications Claiming Priority (1)

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US8478270A 1970-10-28 1970-10-28

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US3707752A true US3707752A (en) 1973-01-02

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US00084782A Expired - Lifetime US3707752A (en) 1970-10-28 1970-10-28 Roll covering

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US (1) US3707752A (fi)
AU (1) AU467761B2 (fi)
BE (1) BE774561A (fi)
BR (1) BR7107202D0 (fi)
CA (1) CA954778A (fi)
CH (1) CH525406A (fi)
ES (2) ES396767A1 (fi)
FI (1) FI56251C (fi)
FR (1) FR2113587A5 (fi)
GB (1) GB1371911A (fi)
NL (1) NL145929B (fi)
SE (1) SE383614B (fi)

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3800381A (en) * 1972-06-19 1974-04-02 Beloit Corp Covered roll for paper making
US3807013A (en) * 1972-11-08 1974-04-30 New Hudson Corp Method of fabricating a composite roll
US3853677A (en) * 1972-01-24 1974-12-10 Toho Yogyo Co Ltd Roll made of non-woven cloth
US3934354A (en) * 1973-12-17 1976-01-27 Hope Henry F Drying rollers
US3950833A (en) * 1975-01-28 1976-04-20 Beloit Corporation Roll covering composition
DE2836460A1 (de) * 1977-08-23 1979-03-08 Ichikawa Woolen Textile Hartfilzwalze oder -rolle
US4242783A (en) * 1977-07-11 1981-01-06 Fuji Photo Film Co., Ltd. Calender roll for use in super calender for magnetic tapes
JPS5724216A (en) * 1980-07-21 1982-02-08 Fuji Photo Film Co Ltd Supercalender
US4324177A (en) * 1979-04-09 1982-04-13 Fuji Photo Film Co., Ltd. Calender roll for supercalender
US4368568A (en) * 1979-08-10 1983-01-18 Yamauchi Rubber Industry Co., Ltd. Elastomeric material covered rolls and a method of making the same
JPS61144422A (ja) * 1984-12-10 1986-07-02 ベロイト　コ−ポレ−ション ベルト被覆ロール
US4766996A (en) * 1983-09-30 1988-08-30 Garrett Aerospace Rollers with oriented fiber reinforcement and method
US5206992A (en) * 1992-06-12 1993-05-04 American Roller Company Compressible roller
US5387172A (en) * 1992-08-13 1995-02-07 Sigri Great Lakes Carbon Gmbh Fiber-reinforced plastic cylinder with an outer wear-resistant layer of filler-containing plastic and a method for producing the same
US5415612A (en) * 1992-06-12 1995-05-16 American Roller Company Compressible roller
WO1998054405A1 (en) * 1997-05-30 1998-12-03 Valmet Corporation Thermoplastic-coated roll, method for manufacture of the roll, composition of thermoplastic coating, method of calendering by means of thermoplastic-coated rolls in accordance with the invention, and paper/board manufactured by means of such rolls
US5983787A (en) * 1996-04-29 1999-11-16 Valmet Corporation Method for calendering a paper web and a calendar that makes use of the method
WO1999063154A1 (en) * 1998-06-02 1999-12-09 Valmet Corporation Shell for a nip roll
US6202557B1 (en) * 1997-01-30 2001-03-20 Voith Sulzer Papiermaschinen Gmbh Applicator system roll
US6206994B1 (en) 1999-07-28 2001-03-27 Advanced Materials Corporation Method and apparatus for covering a metal roll core with a polymeric material preferable a high performance thermoplastic material
US6514369B1 (en) 1999-07-28 2003-02-04 Advanced Materials Corporation Method for and devices used in covering a roll core with a resin infused fiber reinforced adhesive under layer and a polymeric top layer, the method including the use of an improved mold tape
EP1245844A3 (en) * 2001-03-29 2003-02-05 Fort James Corporation Laser engraved embossing roll
US20030045412A1 (en) * 2001-07-13 2003-03-06 Schulz Galyn A. Laser engraved embossing roll with wear-resistant coatings and method of making them
US6623084B1 (en) 1999-01-25 2003-09-23 Boart Longyear Gmbh & Co. Kg Mounting of a rotatable chisel in mining machinery
US6793754B1 (en) 1999-07-28 2004-09-21 Advanced Materials Corporation Covered roll having an under-layer formed of resin infused densely packed fibers that provides increased strength and adhesion properties
US20050015988A1 (en) * 2001-12-26 2005-01-27 Tetsuya Murakami Fiber-reinforced resin roll and method of manufacturing the roll
US20050173085A1 (en) * 2004-02-11 2005-08-11 Schulz Galyn A. Apparatus and method for degrading a web in the machine direction while preserving cross-machine direction strength
US20080135186A1 (en) * 2005-05-21 2008-06-12 Aci-Ecotec Gmbh & Co. Kg Device for the Separation of Substrates from a Stack
US20080251956A1 (en) * 2004-08-13 2008-10-16 Avantone Oy Embossing Device with a Deflection Compensated Roller
EP0864690B2 (de) † 1997-03-14 2009-01-07 Voith Patent GmbH Walzenmaschine
WO2009100758A1 (en) * 2008-02-12 2009-08-20 Metso Paper, Inc. Roll covering
US9845216B2 (en) 2009-09-24 2017-12-19 3M Innovative Properties Company Web conveyance method and apparatus using same
US10316463B2 (en) * 2016-12-21 2019-06-11 Nccm Company, Llc Non-woven covered roller

Families Citing this family (2)

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Publication number Priority date Publication date Assignee Title
EP0459519A1 (en) * 1990-06-01 1991-12-04 Lydall, Inc. Roll fill material and a filled calender roll covered with said material
FI20086005L (fi) * 2008-10-23 2010-04-24 Metso Paper Inc Kuiturainakoneen tela ja menetelmä kuiturainakoneen telan valmistamiseksi

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US2960753A (en) * 1955-01-13 1960-11-22 Mount Hope Machinery Ltd Sheet-engaging rolls
US3467009A (en) * 1965-07-06 1969-09-16 Grace W R & Co Compressible printing roll
US3490119A (en) * 1968-10-23 1970-01-20 Yamauchi Rubber Ind Co Ltd Polyurethane rubber covered roll
US3588978A (en) * 1968-12-18 1971-06-29 Beloit Corp Grooved roll for paper-making

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
US2960753A (en) * 1955-01-13 1960-11-22 Mount Hope Machinery Ltd Sheet-engaging rolls
US3467009A (en) * 1965-07-06 1969-09-16 Grace W R & Co Compressible printing roll
US3490119A (en) * 1968-10-23 1970-01-20 Yamauchi Rubber Ind Co Ltd Polyurethane rubber covered roll
US3588978A (en) * 1968-12-18 1971-06-29 Beloit Corp Grooved roll for paper-making

Cited By (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3853677A (en) * 1972-01-24 1974-12-10 Toho Yogyo Co Ltd Roll made of non-woven cloth
US3800381A (en) * 1972-06-19 1974-04-02 Beloit Corp Covered roll for paper making
US3807013A (en) * 1972-11-08 1974-04-30 New Hudson Corp Method of fabricating a composite roll
US3934354A (en) * 1973-12-17 1976-01-27 Hope Henry F Drying rollers
US3950833A (en) * 1975-01-28 1976-04-20 Beloit Corporation Roll covering composition
US4242783A (en) * 1977-07-11 1981-01-06 Fuji Photo Film Co., Ltd. Calender roll for use in super calender for magnetic tapes
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Also Published As

Publication number Publication date
BE774561A (fr) 1972-02-14
AU467761B2 (en) 1975-12-11
FR2113587A5 (fi) 1972-06-23
ES424375A1 (es) 1976-06-16
CH525406A (de) 1972-07-15
GB1371911A (en) 1974-10-30
ES396767A1 (es) 1975-09-16
BR7107202D0 (pt) 1973-04-05
DE2150991B2 (de) 1976-12-16
AU3440371A (en) 1973-04-12
DE2150991A1 (de) 1972-05-31
NL7114765A (fi) 1972-05-03
FI56251C (fi) 1979-12-10
FI56251B (fi) 1979-08-31
NL145929B (nl) 1975-05-15
SE383614B (sv) 1976-03-22
CA954778A (en) 1974-09-17

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