US2555319A - Bead coated tympan sheet - Google Patents

Bead coated tympan sheet Download PDF

Info

Publication number
US2555319A
US2555319A US549906A US54990644A US2555319A US 2555319 A US2555319 A US 2555319A US 549906 A US549906 A US 549906A US 54990644 A US54990644 A US 54990644A US 2555319 A US2555319 A US 2555319A
Authority
US
United States
Prior art keywords
sheet
tympan
backing
beads
printing
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.)
Expired - Lifetime
Application number
US549906A
Other languages
English (en)
Inventor
Bert S Cross
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.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
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
Priority to FR956760D priority Critical patent/FR956760A/fr
Application filed by Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Priority to US549906A priority patent/US2555319A/en
Priority to GB19238/47A priority patent/GB642915A/en
Priority to FR56881D priority patent/FR56881E/fr
Application granted granted Critical
Publication of US2555319A publication Critical patent/US2555319A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N10/00—Blankets or like coverings; Coverings for wipers for intaglio printing
    • B41N10/02—Blanket structure
    • B41N10/04—Blanket structure multi-layer

Definitions

  • This invention relates broadly to the provision of a composite sheet material having a surface composed of a multiplicity of substantially spherical protuberances. More specifically this invention relates to such sheet material comprising a backing sheet to a surface of which a plurality of substantially spherical particles of material are securely bonded by an adhesive material to provide a substantially uniform but discontinuous surface wherein the advantageous physical characteristics of spherical particles as a surfacing material for sheet material as such and in combination with selected backing sheet ma terials and selected adhesive coating materials are made available for various uses hereinafter more specically designated.
  • the composite sheet material of my invention is used as a durable cover or blanket for the press rolls and bed and as a tympan sheet to prevent olset and to improve the quality of the printing and the paper and fabric coating industries where my material is used as a facing for those elements oi the coating machine which make contact with the freshly coated surfaces of the paper or fabric for supporting and guiding purposes and to minimize the transfer of the wet coating substances to such machine elements.
  • the bead coated material must withstand high iocalized pressures and severe impact and rubbing forces tending to dislodge and crush the indivdual beads.
  • I-leretofore transparent beads have been attached to various materials, for the purpose of ornamentation and to reflect or diffuse light, but to my knowledge none of the previously known beaded materials have either had the high degree of uniformity in the projecting segments oi the beads or the great strength to resist severe impact, rubbing and other forces tending to crush and dislodge the beads required for my purposes.
  • lt is an object of my invention to utilize the unique properties of minute spherical or spheroidal bodies herein described as the contact facing of exible materials adapted to withstand the destructive forces to which they are subjected in the lields of use described and for analogous and other purposes.
  • I utilize as the facing material a single layer of globular bodies of substantially uniform diameter and having the requisite strength and surface characteristics. These bodies are securely bonded individually to a strong, flexible backing, leav ing a somewhat less than half the diameter of each body projecting for contact with the work.
  • the beads may be formed from iron, steel or other metals or alloys, or from ceramic material, mineral, synthetic resin, or other materials having the required surface quality and toughness combined with cheapness commensurate with the intended use.
  • crushed and roughly sized particles of the material are projected into a body of air or inert gas which has been heated to the melting temperature of the particles and the latter, while in suspension, are allowed to cool and harden while the phenomenon of surface tension retains them in the desired spherical or spheroidal shape. Thereafter the globular bodies are accurately graded for size by methods known to be suited to the range of sizes required.
  • Another method that has been used for forming the minute globular bodies involves preliminary heating of a suitable material to a molten condition, then breaking it up into minute globules by the application of a jet of high velocity fluid, then allowing the particles to solidify while in suspension and finally grading them for size. Either of these methods produces beads which are inherently strong as compared with relatively irregular particles of crushed material because the resulting beads are devoid of the strain lines produced by crushing. Comparative tests have shown that such fused globular bodies have vastly superior resistance to crushing.
  • the backing material for my product must have moderately good resistance to shear and tension combined with sumcient flexibility to permit the material to conform t/o the machine elements or other support on which it is to be mounted and to withstand the local flexing incident to its use.
  • a backing comprising a good grade of wood pulp or rope paper of twenty pound or heavier weight is suitable for many uses, although woven fabric, rubber sheeting, rubber coated fabric, suitable synthetic resin sheets, or other materials or combinations of materials having adequate strength may be employed as the bead backing in other or special applications. It will be evident that the requirements of strength and other characteristics of the backing vary widely depending on the iield of use.
  • the backing must be hard and unyielding, ywhereas in other cases a degree of compressibility and elasticity is desirable to allow the bead coated material as a whole to be compressed under locally applied pressures.
  • the backing for the bead coat may be made sufficiently compressible to compensate for ordinary inequalities in the type face level or slight variations in cylinder face and to obviate the need for make-ready adjustments.
  • a porous, somewhat absorbent backing may be provided for some specialties but for most uses the material should be impervious to the ink or other applied substance.
  • This quality may be provided either by coating the front or back face of the backing with an impervious composition or by providing an interior layer which cannot be penetrated by the ink or other applied substance or by the cleaning fluid which is to be used.
  • Such coating or interior layer may comprise ,a glue and glycerine composition or a resin such as an alkyd resin or a synthetic rubber which is nonreactive to the ink or other applied substance and insoluble in the cleaning iluid that may be applied in use.
  • the impervious composition may be caused to saturate or impregnate the backing or an interior or exterior layer thereof.
  • suitable adhesive for bonding the globular bodies to the backing are proteinaceous adhesive, such as glue, or ⁇ a suitable rubber or synthetic elastomer composition, or a thermosetting synthetic resin, such as phenol-aldehydes, urea-formaldehyde, melamine aldehyde, thio urea-formaldehyde, alkyd resins, etc. and mixtures of such resins or a suitable thermoplastic resin. Most highly plasticised resins and unmodi- ⁇ ed starches have insulcient bonding strength for my purposes.
  • the spheroidal or globular bodies constituting the facing of my products are herein sometimes called beads for convenience of reference only, not to limit the subject-matter to conventional bead sizes or materials which are designed to produce various optical or ornamental effects.
  • My improved material may be prepared by either of several known methods which have been employed in the manufacture of coated abrasive material. For example, the small solid globular bodies may be dropped upon the flexible backing upon which there is a surface coating of a suitable adhesive of the requisite thickness. The spheres may be sprinkled or spread upon the web, for example by gravity, the excess 'spheres being then removed. As the next step,
  • the coated web is passed between accurately spaced nip rolls which level the tops of the beads and submerge them to the required depth in the adhesive.
  • a second or sizing coat may be spread over the spheres in order to more firmly secure them to the flexible backing or to impart a surface which will control the tendency of the ink or other substance encountered in a particular use to wet or adhere to the finished material.
  • a beaded surface or sizing therefor which is either repellent or non-adhesive and non-absorbent with respect to the applied substance.
  • the sizing coat may be applied by means of a roll partially immersed and revolving in a pan of sizing material ⁇ and contacting with the bead coated surface of the web, or by spraying with a sizing solution, or by any other suitable means.
  • the sizing may be set or cured, for example, by passing the sheet through an oven in ⁇ the form of festoons, similar to the method used in the curing or setting of coated abrasive webs, well known in the coated abrasive K art, where a heat-maturable, thermosetting synthetic resin is used as the adhesive and/or the sizing coat, the resin may be cured by any of the methods known to the art.
  • the resulting web may be cut into sheets of varying size den pending on the particular field in which it is to be used. For use on large tympan rolls it has been found that 8 sheets size 22 inches by 36 inches are necessary to cover the roll.
  • Figure l is a magnified section through a bead coated material made according to the present invention, wherein the contacting surface is formed by a layer of small, solid, globular bodies secured to a backing by means of an adhesive coating;
  • Fig. 2 is a diagrammatic vertical section of a printing apparatus illustrating a method of printing on both sides of a paper web in which the supporting rolls opposed to the type cylinders are shown covered with material embodying my invention;
  • Fig. 3 is a fragmentary enlarged sectional View showing the action of the printing type on the web and showing the small globular bodies in contact with the portion of the web to be printed;
  • Fig. 4 is a diagrammatic vertical section of cloth coating or finishing apparatus in which my bead coated material is used as a facing for certain of the rolls supporting the freshly coated fabric;
  • Fig. 5 is a diagrammatic sectional view showing paper coating apparatus wherein my improved material is used on an idler roll in contact with the freshly coated paper;
  • Fig. 6 is a magnified sectional view showing an embodiment of my invention wherein spherical bodies of one of the larger sizes are relatively widely spaced on the backing and also showing a nlm for controlling the wetting properties of the contact face;
  • Fig. 7 is a magnified sectional view showing my bead coating on a cloth or textile fabric backing
  • Fig. 8 is a similar view showing a form of the invention wherein the backing comprises a com-- bination of paper and textile fabric.
  • a sheet Z is shown in which small solid globular bodies Iii are secured to a iiexible backing I I by means of an adhesive I2.
  • the bodies I are approximately uniformly spaced and substantially spherical. in shape. These bodies are shown submerged in the adhesive to a depth somewhat in excess of one-half their diameters so that each is positively confined in a strong socket wherein surface adhesion alone is not depended on to anchor it.
  • the numeral I3 represents a blank sheet 01 web, such as paper, which is fed in the direction of the arrow from a supply roll (not shown) between the print roll I4, inked by means of ink roll I5, and the first tympan or impression roll I which is preferably faced with my bead coated material.
  • the paper I3, thus printed on its lower side, is then fed between a second print roll I1, similarly inked by an ink roll I8, and a second tympan or impression roll I9, faced with a tympan sheet indicated generally by the numeral 20.
  • Other modifications whereby the tympan sheet may be used in the form of a belt which passes around.
  • FIG 3 illustrates further and more in detail a part of the printing process with which this invention is particularly concerned.
  • the paper I3 after it has been printed on its lower side, is fed between a printing roll Ii, having type 2I, and a tympan roll I3, faced with a tympan sheet 2E).
  • the tympan sheet comprises a fiexible base II and small solid globular bodies Il, such as glass beads, secured to the backing II by means of an adhesive I 2.
  • the globular bodies and bonding adhesive therefor must be chemically inert to the action of the printing ink and to the solvents used therewith.
  • glass spheres having a diameter in the neighborhood of .U01- .005 inch, e. g., .003 inch, corresponding to Number bead size and 220 grit size, is suitable for many applications, but smaller or larger sizes may be employed as desired. If small solid globular bodies other than glass spheres are used, the diameter of the individual globular bodies may be as above indicated for glass spheres.
  • exible backing may be made of cloth, paper, or other material, or combinations of suitable materials, and may be sized or unsized, and, for example, of a thickness of the order of .004 to .016 inch.
  • An excellent tympan sheet has been obtained by the use of Number l5 lime soda glass spheres, corresponding to 220 mesh size, adhesively secured to a pound Fourdrinier paper.
  • 130 pound paper means a paper of Such weight that a ream thereof, i. e. 480 sheets, 24 x 36" in size, weighs 130 pounds. Any cf the ordinary backings used in coated abrasive sheets may be used.
  • a highly calendered paper such as 130 pound cylinder paper
  • a paper which has been treated with suitable material such as glue, zein, etc. to render it oil and grease proof may also be used.
  • suitable material such as glue, zein, etc. to render it oil and grease proof
  • paper such as 130 pound Fourdrinier paper may be used.
  • a web 22 of cloth to be finished or coated is fed from a receptacle 23 upon suitable guide rolls to the periphery of a drum 2li which is partially submerged in a vat 25 containing starch, glue or other coating or finishing substance in liquid form.
  • the wet face of the freshly coated or impregnated fabric then passes over idler rolls 25 which are faced with my bead coated material 3G and thence to the drying section of the machine indicated generally by the numeral 21, wherein the first roll 28 which makes Contact with the coated side of the fabric is also provided with a blanket of the material 3G to minimize both transfer of the coating substance and smearing of the coated face.
  • the spherical bodies It 0f the material Se may be bonded to the backing by employing an adhesive of the phenolic resin type to which the wet starch on the cloth does not readily adhere.
  • the spheroidal segments projecting from the material 3Q may also be covered with a phenolic resin lm or Sizing.
  • spheroidal bodies of the larger sizes ranging from bead sizes l() to 5 are better suited for minimizing offset in the field of cloth finishing and wider spacing of the globular bodies is preferable in this field in order to compensate for the tendency of the protuberances to penetrate relatively deeply into the softer, more yielding fabrics and their coating.
  • Fig. 5 an application of the invention to paper coating is illustrated diagrammatically.
  • the paper is fed from a roll 3i over suitable guide rolls and its bottom face is brought into contact with a coating roller 32 submerged in a pan 33 containing the coating substance.
  • the web 3d is then guided to the drying section 35 and any supporting machine element, such as the roller 36, which makes contact with the wet face of the web, is preferably covered with my bead coated material 36 having beads, adhesive and backing which are correlated to the particular substance carried by the web Sli as hereinbefore described.
  • the material indicated generally by the numeral 3o has the globular bodies il! of one of the larger sizes bonded to the backing ll in relatively widely spaced relation to each other and a film of sizing 3l is shown covering the protruding surfaces of the bodies lil and intervening exposed surface of the adhesive l2.
  • the iilm 3l increases the bond and may be of such character as to repel or minimize adherence of the particular substance that is to be encountered in use. Penetration of the wetting substance completely through the sheet may be prevented by the appli cation of an impervious composition to the back face of the backing Il as shown, or otherwise as hereinbefore described,
  • the globular bodies forming the contact face may be bonded to a backing i le. comprising a textile fabric having the required strength and flexibility.
  • a backing i le. comprising a textile fabric having the required strength and flexibility.
  • Material of this character is well adapted for a number of special uses including the construction of upholstery coverswherein the protruding globular segments composed of glass or other smooth durable material minimize wear on the clothing coming in Contact with the upholstery. When used as the seat covers in vehicles this material facilitates sliding movements of the occupants of the vehicles, to and from the seats, and in moving about within the vehicles.
  • Fig. 8 shows the globular bodies lil forming the contact facing on a composite backing which may comprise a layer of paper Hb and a cloth layer 3d bonded together by a layer di] of glue or other suitable adhesive.
  • a composite backing affords great strength combined with flexiblity and a degree of compressibility.
  • Other combinations of backing materials as well as variations in the bead sizes, materials and spacing and use of other bonding materials and siaing'lms and treatment to control surface characteristics within the scope of my invention will be understood from the foregoing and following specification.
  • tympan sheet A of the old style, i. e. sandpaper type, well known and used commercially, was compared by actual test with the tympan sheet of this invention.
  • the old style sandpaper type tympan sheet, hereinafter called tympan sheet A consisted of a backing of 130 pound cylinder paper to which was adhesively secured a layer of Aiundum abrasive grits of a grit size 2&0. Glue was used as the adhesive bonding material.
  • tympan sheet B The tympan sheet of this invention, hereinafter called tympan sheet B consisted of backing of 130 pound Fourdrinier peper to which was adhesively secured a subtially uniform layer of glass beads of a diameter of approximately .003 inch. Glue was also used the adhesive bonding materiaI in this tympan sheet.
  • the glass beads of the size stated are also known as #l5y glass beads which corresponds in size to abrasive grits of #220 grit size.
  • Sheet A used to cover a tympan roll in one large press and sheet B to cover a tympan roll in another.
  • Eight sheets 22 X 36" were needed i l0 in each case to cover each tympan roll. Oil wiper rolls were used. The presses were then put in operation on the printing of a catalogue.
  • Tympan sheet A was found no longer serviceable after 35,000 impressions, while tympan sheet B was removed after the run was completed and when 130,000 impressions had been made and was still serviceable.
  • tympan sheet A Microscopic examination of the used sheets disclosed in tympan sheet A, a breakdown of pointed or block surface to a generally at surface in critical areas of heavy form. These heavy form areas are areas in cuts or miscellaneous printed forms which appear especially black or heavy This is the result of continuous or emi-continuous type or cut forms which greatly increase the unit pressures operating upon the tympan surface. Hence the tendency for rapid breakdown of the granules or grits in heavy form areas. Tympan sheet B showed no apparent wearing or breakdown Vof the glass spheres in the critical areas of heavy form.
  • EXAMPLE II Another commercial test run was conducted using only one press wherein the tympan sheets A and B described in Example I, were placed side by side and used to cover half the tympan roll. No oil wiper rolls were used. The job of printing was on newsprint paper. A run of 130,000 impressions was made.
  • Half-tone reproductions of sheets taken from the side or roll covered with tympan sheet B showed no noticeable offset, while those printed on the side of roll covered with tympan sheet A showed offset in increasing amount as the run progressed.
  • EXAMPLE III Another commercial run was conducted using the same type of tympan sheets as described in Example I, which were placed on two tympan rolls in the manner described with reference to Example I.
  • the job to be printed was a commercial seed catalogue.
  • ROCKING DRUM TESTS Embcdiments of the present invention have been further compared with the present commercial products most nearly resembling it by subjecting the several products to the same rubbing tests.
  • the apparatus has included a drum having an unyielding cylindrical surface of 121/2 inches in diameter mounted with its axis horizontal and arranged to be oscillated about its axis.
  • the specimens to be tested were successively attached to the upper periphery of this drum and pressure equal to a two pound weight was applied by means of a hardened steel block having a ilat lower end 13a inch square disposed at an angle of approximately 4 degrees to the beaded or grit coated surface of the material under test so that the Weight was applied to the material along an edge of the block it of an inch long extending parallel to the axis of the drum.
  • An electric motor was connected to the drum to cause the cylindrical supporting surface to be oscillated at the rate of sixty cycles per minute and with a stroke equal to approximately L11/2 inches relative to the contact edge of the stationary pressure block.
  • the edge of the block which made contact with the specimen under test was formed by a sharp right angle corner so that this edge had a tendency to cut into the material under test during the stroke in one direction.
  • the machine was provided with an automatic stroke counter and the number of strokes applied in each test were recorded.
  • the weight of the surfacing material removed in each test was nally determined and compared with the weight of the material originally on the corresponding area of the specimen to determine the percentage loss of such surfacing material resulting from the test.
  • Tympan material adapted to support a sheet to be printed upon comprising a flexible base member having good resistance to shear and tension and providing a substantially planar and rough surface supporting the sheet to be printed upon, said surface formed by small glass spheres of fairly high frictional resistance to the sliding of the sheet thereon and adapted to support the sheet in the printing plane, said spheres being set in a slightly yieldabie adhesive and defining interspaces for the reception of ink transferred from said sheet during the printing process, said adhesive being resistant to softening under conditions of use and being inert to printing ink.
  • a tympan sheet or printing blanket adapted for use in preventing offset in printing comprising a flexible backing sheet, a substantially uniform coating of approximately uniformly sized small solid substantially globular bodies bonded to said backing by means of an adhesive so as to resist mechanical dislodgment in use and provide an even supporting surface, said adhesive being resistant to softening under conditions of use and said backing sheet including a material serving to prevent ink and cleaning fluid from penetrating completely through the tympan sheet.
  • a tympan sheet or printing blanket adapted for use in preventing offset in printing comprising, a flexible backing sheet, a substantially uniform coating of glass beads and an adhesive coating bonding said beads to said backing sheet and substantially preventing mechanical dislodgment thereof in use, said adhesive coating being inkabsorbent but said backing sheet being treated with a material serving to prevent ink and cleaning uid from completely penetrating the same and said coating of glass beads providing a discontinuous but substantially uniform supporting surface.
  • a tympan sheet or printing blanket adapted for use in preventing offset in printing comprising, a paper backing having a thickness of the order of .004 to .016 inch, a substantially uniform coating of generally spherical glass beads having a diameter of the order of .001 to .005 inch, and a glue coating of less average thickness than the diameter of said glass beads bonding said beads to said paper backing, said coating of glass beads being composed at least substantially completely of a single layer of glass beads, i. e. said layer having a thickness of the order of .O01 to .O05 inch, and providing a substantially plane surface, uniform to within .001 inch to .005 inch.
  • an improved tympan sheet adapted for use with said tympan roll to prevent offset in printing comprising a composite flexible sheet material comprising a substantially uniform coating of approximately uniformly sized glass beads secured to a flexible backing by means of an adhesive coating suflicient to substantially prevent mechanical dislodgment of said beads in use.
  • an improved tympan sheet adapted for use with said tympan roll or impression cylinder comprising a flexible backing having Substantial resistance to shearing stress, an adhesive coating on said backing and a facing composed of globular bodies the diameters of which are substantially uniform, each body being submerged in said coating to a depth exceeding one-half its diameter and being securely bonded to the exible backing, said bodies having spherical segments protruding from the adhesive at closely spaced points to a substantially uniform elevation for contact with the sheet to be printed upon.
  • an improved tympan sheet for use with said tympan roll or impression cylinder comprising a flexible backing, an adhesive coating on said backing and a durable facing of smooth, tough, globular bodies submerged in said coating to a depth such that from 50% to 75% of the surface area of each body is encased in the adhesive, said bodies having similar spheroidal segments protruding from the adhesive and affording a surface in contact with the paper to be printed upon which is uniform within a few thousandths of an inch.

Landscapes

  • Laminated Bodies (AREA)
US549906A 1943-04-19 1944-08-17 Bead coated tympan sheet Expired - Lifetime US2555319A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR956760D FR956760A (en:Method) 1943-04-19
US549906A US2555319A (en) 1943-04-19 1944-08-17 Bead coated tympan sheet
GB19238/47A GB642915A (en) 1943-04-19 1947-07-18 Improvements in or relating to a printing accessory adapted for use as a tympan sheet or blanket and printing apparatus employing said accessory
FR56881D FR56881E (fr) 1943-04-19 1947-08-07 Perfectionnements au matériel accessoire d'imprimerie et aux appareils d'imprimerieutilisant ledit matériel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US48359043A 1943-04-19 1943-04-19
US549906A US2555319A (en) 1943-04-19 1944-08-17 Bead coated tympan sheet

Publications (1)

Publication Number Publication Date
US2555319A true US2555319A (en) 1951-06-05

Family

ID=27047704

Family Applications (1)

Application Number Title Priority Date Filing Date
US549906A Expired - Lifetime US2555319A (en) 1943-04-19 1944-08-17 Bead coated tympan sheet

Country Status (3)

Country Link
US (1) US2555319A (en:Method)
FR (2) FR56881E (en:Method)
GB (1) GB642915A (en:Method)

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2655453A (en) * 1952-04-23 1953-10-13 Ncr Co Manifold sheet having a crushresistant transfer film
US2804417A (en) * 1947-01-13 1957-08-27 Minnesota Mining & Mfg Printing accessory
US2965018A (en) * 1957-02-06 1960-12-20 Toscony Inc Film embossing roll
US3054348A (en) * 1959-08-19 1962-09-18 Edgar C Gutweniger Skeleton roll printing press
US3106319A (en) * 1958-07-29 1963-10-08 Fischer Markus Adhesive drive for a tape-shaped signal carrier
US3308522A (en) * 1962-12-14 1967-03-14 Velcro Corp Anti-offset roll
US3696741A (en) * 1969-12-03 1972-10-10 George W Reinke Foraminous printing screen
US3787229A (en) * 1971-02-17 1974-01-22 Union Carbide Corp Low-friction, wear-resistant material
US3924767A (en) * 1971-09-30 1975-12-09 Dart Ind Inc Plastic coated containers having embedded friction reducing particles
WO1979000434A1 (en) * 1977-12-23 1979-07-12 Napp Systems Inc Shallow relief non-bottoming photopolymer printing plate
US4289071A (en) * 1977-12-23 1981-09-15 Napp Systems (Usa), Inc. Shallow relief non-bottoming photopolymer printing plate
US4327135A (en) * 1979-04-24 1982-04-27 Heidelberger Druckmaschinen Aktiengesellschaft Sheet-guiding foil as a covering for impression cylinders
US4694750A (en) * 1985-11-21 1987-09-22 Greene Joe A Printing press cylinder with axially adjustable cord anti-smear devices
WO1990013426A1 (en) * 1989-05-09 1990-11-15 Macconnell Edward P Delivery apparatus for printing press
EP0347456A4 (en) * 1987-10-05 1991-03-13 Kinyosha Co. Ltd. Ink roller for printing press and production thereof
US5042383A (en) * 1974-09-27 1991-08-27 Heidelberger Druckmaschinen Ag Impression cylinder with domelike surface portions of uniform height
US5102744A (en) * 1989-02-24 1992-04-07 Heidelberger Druckmaschinen Ag Metal foil electroformed with a master pattern, the master pattern per se, and method of manufacture
US5295753A (en) * 1990-05-17 1994-03-22 Seiko Epson Corporation Label tape printing system using thermal head and transfer ink ribbon
US5397651A (en) * 1992-09-12 1995-03-14 Heidelberger Druckmaschinen Ag Foil for covering an impression cylinder
US5431321A (en) * 1992-09-28 1995-07-11 Sulzer Escher Wyss Gmbh Roll for web pressing or web guiding
US5775225A (en) * 1996-06-17 1998-07-07 Shinohara Machinery Co., Ltd. Plate cylinder having glass beads thereon for a sheet-fed printing press
US5842412A (en) * 1997-03-07 1998-12-01 Bba Nonwovens Simpsonville, Inc. Anti-marking covering for printing press transfer cylinder
DE19780391B4 (de) * 1996-03-28 2004-05-06 Shinoda & Co. Ltd. Farbverschmutzung verhindernde Lage
US6811863B2 (en) 2001-07-20 2004-11-02 Brite Ideas, Inc. Anti-marking coverings for printing presses
JP2006137612A (ja) * 1994-04-25 2006-06-01 Nippon Steel Corp 印刷装置におけるガイドローラまたは中間胴用被覆体、これを用いた印刷装置
WO2007133715A2 (en) 2006-05-12 2007-11-22 Printguard, Inc. Fixture for anti-marking coverings for printing presses
US20110139586A1 (en) * 2009-12-14 2011-06-16 Xerox Corporation Vacuum transport belts
US20110139577A1 (en) * 2009-12-14 2011-06-16 Xerox Corporation Surface roughness for improved vacuum pressure for efficient media hold-down performance
US20110139584A1 (en) * 2009-12-14 2011-06-16 Xerox Corporation Vacuum transport belts
JP2020116477A (ja) * 2019-01-18 2020-08-06 株式会社リコー 塗布装置、液体を吐出する装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH578940A5 (en:Method) * 1975-02-14 1976-08-31 Von Roll Ag
JPH02117932A (ja) * 1988-10-26 1990-05-02 Kitagawa Kogyo Kk 導電性弾性体

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US487121A (en) * 1892-11-29 Mulleb
US705294A (en) * 1897-07-27 1902-07-22 Joseph E Rhodes Blanket for use in the art of printing.
US823445A (en) * 1906-03-12 1906-06-12 Ernst Schramm Manufacture of imitation silk.
US1204775A (en) * 1916-04-20 1916-11-14 Axel T Jacobsson Motion-picture screen and process for making the same.
GB244228A (en) * 1924-10-24 1925-12-17 Heinrich Hartmann Improvements in or relating to the method and means for producing stencils for duplicating apparatus
US1766957A (en) * 1928-11-06 1930-06-24 Ozro P Smith Machine-printing art
US2073918A (en) * 1932-07-13 1937-03-16 Knowlton Tympan sheet
GB469743A (en) * 1936-01-30 1937-07-30 Frederick Hunter Improvements in or relating to display devices and their manufacture
US2143946A (en) * 1935-05-30 1939-01-17 Hunter Frederick Method of manufacturing signs and other display devices
US2153755A (en) * 1937-01-09 1939-04-11 Du Pont Beaded surfaces
US2268537A (en) * 1939-05-19 1941-12-30 Shuger Leroy Road marker
US2311889A (en) * 1941-11-19 1943-02-23 Toland William Craig Lithographic plate
US2354048A (en) * 1940-08-03 1944-07-18 Minnesota Mining & Mfg Flexible lenticular optical sheet
US2379741A (en) * 1943-01-23 1945-07-03 Minnesota Mining & Mfg Reflex light reflector
US2403752A (en) * 1940-02-13 1946-07-09 Brown & Bigelow Flexible reflex reflecting film

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US487121A (en) * 1892-11-29 Mulleb
US705294A (en) * 1897-07-27 1902-07-22 Joseph E Rhodes Blanket for use in the art of printing.
US823445A (en) * 1906-03-12 1906-06-12 Ernst Schramm Manufacture of imitation silk.
US1204775A (en) * 1916-04-20 1916-11-14 Axel T Jacobsson Motion-picture screen and process for making the same.
GB244228A (en) * 1924-10-24 1925-12-17 Heinrich Hartmann Improvements in or relating to the method and means for producing stencils for duplicating apparatus
US1766957A (en) * 1928-11-06 1930-06-24 Ozro P Smith Machine-printing art
US2073918A (en) * 1932-07-13 1937-03-16 Knowlton Tympan sheet
US2143946A (en) * 1935-05-30 1939-01-17 Hunter Frederick Method of manufacturing signs and other display devices
GB469743A (en) * 1936-01-30 1937-07-30 Frederick Hunter Improvements in or relating to display devices and their manufacture
US2153755A (en) * 1937-01-09 1939-04-11 Du Pont Beaded surfaces
US2268537A (en) * 1939-05-19 1941-12-30 Shuger Leroy Road marker
US2403752A (en) * 1940-02-13 1946-07-09 Brown & Bigelow Flexible reflex reflecting film
US2354048A (en) * 1940-08-03 1944-07-18 Minnesota Mining & Mfg Flexible lenticular optical sheet
US2311889A (en) * 1941-11-19 1943-02-23 Toland William Craig Lithographic plate
US2379741A (en) * 1943-01-23 1945-07-03 Minnesota Mining & Mfg Reflex light reflector

Cited By (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2804417A (en) * 1947-01-13 1957-08-27 Minnesota Mining & Mfg Printing accessory
US2655453A (en) * 1952-04-23 1953-10-13 Ncr Co Manifold sheet having a crushresistant transfer film
US2965018A (en) * 1957-02-06 1960-12-20 Toscony Inc Film embossing roll
US3106319A (en) * 1958-07-29 1963-10-08 Fischer Markus Adhesive drive for a tape-shaped signal carrier
US3054348A (en) * 1959-08-19 1962-09-18 Edgar C Gutweniger Skeleton roll printing press
US3308522A (en) * 1962-12-14 1967-03-14 Velcro Corp Anti-offset roll
US3696741A (en) * 1969-12-03 1972-10-10 George W Reinke Foraminous printing screen
US3787229A (en) * 1971-02-17 1974-01-22 Union Carbide Corp Low-friction, wear-resistant material
US3924767A (en) * 1971-09-30 1975-12-09 Dart Ind Inc Plastic coated containers having embedded friction reducing particles
US5042383A (en) * 1974-09-27 1991-08-27 Heidelberger Druckmaschinen Ag Impression cylinder with domelike surface portions of uniform height
US4289071A (en) * 1977-12-23 1981-09-15 Napp Systems (Usa), Inc. Shallow relief non-bottoming photopolymer printing plate
WO1979000434A1 (en) * 1977-12-23 1979-07-12 Napp Systems Inc Shallow relief non-bottoming photopolymer printing plate
US4327135A (en) * 1979-04-24 1982-04-27 Heidelberger Druckmaschinen Aktiengesellschaft Sheet-guiding foil as a covering for impression cylinders
US4694750A (en) * 1985-11-21 1987-09-22 Greene Joe A Printing press cylinder with axially adjustable cord anti-smear devices
EP0347456A4 (en) * 1987-10-05 1991-03-13 Kinyosha Co. Ltd. Ink roller for printing press and production thereof
US5102744A (en) * 1989-02-24 1992-04-07 Heidelberger Druckmaschinen Ag Metal foil electroformed with a master pattern, the master pattern per se, and method of manufacture
WO1990013426A1 (en) * 1989-05-09 1990-11-15 Macconnell Edward P Delivery apparatus for printing press
US5088404A (en) * 1989-05-09 1992-02-18 Macconnell Edward P Delivery apparatus for printing press
US5295753A (en) * 1990-05-17 1994-03-22 Seiko Epson Corporation Label tape printing system using thermal head and transfer ink ribbon
US5397651A (en) * 1992-09-12 1995-03-14 Heidelberger Druckmaschinen Ag Foil for covering an impression cylinder
US5431321A (en) * 1992-09-28 1995-07-11 Sulzer Escher Wyss Gmbh Roll for web pressing or web guiding
JP2006137612A (ja) * 1994-04-25 2006-06-01 Nippon Steel Corp 印刷装置におけるガイドローラまたは中間胴用被覆体、これを用いた印刷装置
DE19780391B4 (de) * 1996-03-28 2004-05-06 Shinoda & Co. Ltd. Farbverschmutzung verhindernde Lage
US5775225A (en) * 1996-06-17 1998-07-07 Shinohara Machinery Co., Ltd. Plate cylinder having glass beads thereon for a sheet-fed printing press
US5842412A (en) * 1997-03-07 1998-12-01 Bba Nonwovens Simpsonville, Inc. Anti-marking covering for printing press transfer cylinder
US20080026201A1 (en) * 2001-07-20 2008-01-31 Printguard, Inc. Anti-marking coverings for printing presses
US20050106968A1 (en) * 2001-07-20 2005-05-19 Brite Ideas, Inc. Anti-marking coverings for printing presses
US7270873B2 (en) 2001-07-20 2007-09-18 Brite Ideas, Inc. Anti-marking coverings for printing presses
US6811863B2 (en) 2001-07-20 2004-11-02 Brite Ideas, Inc. Anti-marking coverings for printing presses
US9868277B2 (en) 2001-07-20 2018-01-16 Printguard, Inc. Anti-marking coverings for printing presses
US8381647B2 (en) 2001-07-20 2013-02-26 Printguard, Inc. Anti-marking coverings for printing presses
WO2007133715A2 (en) 2006-05-12 2007-11-22 Printguard, Inc. Fixture for anti-marking coverings for printing presses
US20110139584A1 (en) * 2009-12-14 2011-06-16 Xerox Corporation Vacuum transport belts
US20110139577A1 (en) * 2009-12-14 2011-06-16 Xerox Corporation Surface roughness for improved vacuum pressure for efficient media hold-down performance
US8695783B2 (en) * 2009-12-14 2014-04-15 Xerox Corporation Vacuum transport belts
US8708135B2 (en) 2009-12-14 2014-04-29 Xerox Corporation Vacuum transport belts
US8863939B2 (en) 2009-12-14 2014-10-21 Xerox Corporation Surface roughness for improved vacuum pressure for efficient media hold-down performance
US20110139586A1 (en) * 2009-12-14 2011-06-16 Xerox Corporation Vacuum transport belts
JP2020116477A (ja) * 2019-01-18 2020-08-06 株式会社リコー 塗布装置、液体を吐出する装置
US12023912B2 (en) * 2019-01-18 2024-07-02 Ricoh Company, Ltd. Coater and liquid discharge apparatus

Also Published As

Publication number Publication date
FR56881E (fr) 1952-10-08
GB642915A (en) 1950-09-13
FR956760A (en:Method) 1950-02-07

Similar Documents

Publication Publication Date Title
US2555319A (en) Bead coated tympan sheet
US3605349A (en) Abrasive finishing article
US2015658A (en) Method of forming abrasive articles
JP4008663B2 (ja) インクジェット印刷用転写紙
DE2918103C2 (de) Verfahren zum Auftragen eines Grundbindemittels und Vorrichtung zur Durchführung desselben
US2804417A (en) Printing accessory
GB2053997A (en) Treated polyester fabric for use in flexible abrasives
US3635158A (en) Roller for printing press
CH627115A5 (en:Method)
US6305282B1 (en) Doctor blade for wiping away excess printing ink from the surface of a printing form
US3656265A (en) Method of making an abrasive belt
US2542058A (en) Polishing sheet
GB2044398A (en) Fluid-Transfer Roller
DK143180B (da) Mellembaerefolie til fremstilling af mangfoldiggoerelser ved offsettrykkemetoden
US4590857A (en) Ink metering apparatus
US4584209A (en) Floor covering materials
US2429314A (en) Apparatus for producing saturated fibrous bodies
US4538518A (en) Ink metering apparatus
JP3366643B2 (ja) フィブリル化された表面
US2011181A (en) Method for preventing offset in printing
US2134165A (en) Planographic printing plate
US4882990A (en) Ink roller for rotary press
US2088471A (en) Printing roll
US2073918A (en) Tympan sheet
US3428517A (en) Packing material for letterpress impression cylinders