US3817209A - Gravure coating - Google Patents

Gravure coating Download PDF

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Publication number
US3817209A
US3817209A US00333185A US33318573A US3817209A US 3817209 A US3817209 A US 3817209A US 00333185 A US00333185 A US 00333185A US 33318573 A US33318573 A US 33318573A US 3817209 A US3817209 A US 3817209A
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US
United States
Prior art keywords
gravure
pattern
side zones
zone
zones
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
US00333185A
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English (en)
Inventor
A Zurick
G Rock
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.)
VAN VLAANDEREN CONTAINER MACHINERY INC US
VLAANDEREN CONTAINER MACHINE
Coors Brewing Co
Original Assignee
VLAANDEREN CONTAINER MACHINE
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
Application filed by VLAANDEREN CONTAINER MACHINE filed Critical VLAANDEREN CONTAINER MACHINE
Priority to US00333185A priority Critical patent/US3817209A/en
Priority to CA191,099A priority patent/CA1011940A/en
Priority to AU65372/74A priority patent/AU479945B2/en
Priority to NL7401904A priority patent/NL7401904A/xx
Priority to FR7404902A priority patent/FR2218196B1/fr
Priority to DE19742406847 priority patent/DE2406847A1/de
Priority to GB685174A priority patent/GB1422495A/en
Priority to JP49017697A priority patent/JPS49111705A/ja
Application granted granted Critical
Publication of US3817209A publication Critical patent/US3817209A/en
Assigned to COORS BREWING COMPANY, GOLDEN, CO 80401 A CORP. OF CO reassignment COORS BREWING COMPANY, GOLDEN, CO 80401 A CORP. OF CO ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: ADOLPH COORS COMPANY, A CORP. OF CO
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M1/00—Inking and printing with a printer's forme
    • B41M1/40—Printing on bodies of particular shapes, e.g. golf balls, candles, wine corks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F17/00—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
    • B41F17/08—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces
    • B41F17/14—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces on articles of finite length
    • B41F17/20—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces on articles of finite length on articles of uniform cross-section, e.g. pencils, rulers, resistors
    • B41F17/22—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces on articles of finite length on articles of uniform cross-section, e.g. pencils, rulers, resistors by rolling contact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M1/00—Inking and printing with a printer's forme
    • B41M1/10—Intaglio printing ; Gravure printing

Definitions

  • the overlapping coating provides a substan- [58] Fie'ld DIG l5 tially uniform coat because of the variable gravure pattern while avoiding the pronounced line of demar- 118/244 258 101/127 114 cation at the start of the coat and at the end of the [56] References Cited coat which occurs when there is a double thickness of U T AT S P E S coating in an overlap area. 2,638,050 5/1953 King 1l8/DIG.
  • This invention relates in general to a gravure printing technique for applying a substantially continuous coat to an article and more particularly to such a technique as is applied to cylindrical, or other continuous surface, devices such as an aluminum or steel can.
  • Cans of widely varying sizes are used as containers for a wide variety of consumer and other goods. These cans have a continuous surface which in the case of the more usual can is a cylindrical surface. This surface is commonly used as an aid in the sale of the product contained therein. In many circumstances, not only is a legend and decorative motif printed on the cylindrical surface by one of the known type of can printers (such as that disclosed in the Hartmeister US. Pat. No. 3,261,281 or that disclosed in the Zurick US. Pat. No. 3,356,019) but also, prior to the printing, a paint basecoat is applied and, after the printing, a shellac overcoat is applied.
  • the basecoat is preferably a uniform solid color, often white, on top of which the legend and decorative motifs are printed.
  • the overcoat is usually a shellac-type of finish applied evenly and in a form that is as transparent as possible. The overcoat is to protect the printing from damage during shipping and handling prior to selling.
  • the applicator roll or other applicator device is caused to transverse the circumference of the body approximately two and one-third times. The basic reason for this is to minimize the visual impact of the overlap zone.
  • the terms can body" and can are used to represent hollow, preformed containers including but not limited to cylindrical bodies.
  • this invention employs a gravure printing technique employing a gravure cylinder having a unique design.
  • a transfer roll transfers the coating material from the gravure cylinder to the can body.
  • the gravure pattern etched in the cylinder face for each can area has three zones. Assume a rectangular configuration for the area within which the cell pattern of the gravure pattern resides. These three zones are a center band and first and second side bands.
  • the center band constitutes. about 60 percent of the area and the side bands each constitutes about 20 percent of the area.
  • the center band is between the two side bands and has a cell pattern that provides a predetermined maximum coverage of the corresponding portion of the can that is coated from the center band of the gravure pattern.
  • This center band covers approximately three-fourths of the circumference of the can. The other one-fourth of the circumference of the can is covered a first time by the first side band and then is covered a second time by the second side band.
  • the first and second side bands provide overlapping coats.
  • the pattern of the cells in the side bands is such that each side band provides continuously decreasing coverage from. the predetermined maximum coverage at the portion of each side band immediately adjacent to the center .band and decreasing at an even rate out to the outer ends of each of the two side bands.
  • the two side bands which provide overlapping coating complement each other to provide a coat that is equal in density to the coat provided by the center band.
  • FIG. 1 illustrates a cylindrical can body on which the coating zones are schematically indicated.
  • FIG. 2 is a face view of a first embodiment of the gravure cylinder of this invention showing the gravure pattern.
  • FIG. 3 is a graphical representation of the artwork density used as the basis for generating the FIG. 2 gravure pattern.
  • FIG. 4 illustrates the amount of coating overlap on the can body that is generated by the FIG. 2 gravure pattern.
  • FIG. 5 is a simplified schematic of a can coating sys tern employing the gravure principle of this invention.
  • FIG. 8 illustrates the amount of coating overlap in the can body that is generated by the FIG. 6 gravure pat tern.
  • the can body shown in FIG. 1 is coated by a blanket cylinder in such a fashion that the bulk of the circumference of the can body 10 is coated once while the zone 12, shown between dotted lines, is coated twice.
  • This zone 12 is the overlap area.
  • this overlap area corresponds to the portion of the can which is printed from the two side zones 24 and 25 of the gravure pattern 15.
  • a gravure cylinder 14 has a gravure area 15 within which area there is distributed a pattern of small cells for carrying the paint of shellac or other coating material.
  • the gravure pattern 15 is shown flat for convenience of illustration. There will normally be a plurality of separate gravure patterns 15 around the circumference of the gravure cylinder 14.
  • a reservoir 17 dispensing paint (or other coating material) applies the coating material to the gravure cylinder 14.
  • the gravure cylinder is in rotating contact with transfer cylinder 18, which in turn carries the coating material around to be applied to the outer surface of can bodies 19.
  • the cans 19 are carried on a continuously moving carrier.
  • the relationship and structure of blanket 18, cans 19 and carrier 20 can be that described in said US. Pat. No.
  • the doctor blade 21 positioned prior to contact between gravure cylinder 14 and blanket cylinder 18 assures that each cell on the surface of each gravure pattern area 14 is filled with coating material and that excess coating material is wiped off. Thus the doctor blade 21 aids in assuming a repeatable application of coating material.
  • the reservoir 17 can be any type that provides a continuous source of coating material to the surface of the gravure patterns on the gravure cylinder 14. A device such as that which is known as ink rails can be employed.
  • the gravure pattern 15 has three zones, a center zone 23 and side zones 24 and 25.
  • the height H of these three zones is at least equal to the height of the cylindrical object 19 that is to be coated.
  • the combined length (Ll plus L2) of the first side zone 24 and the center zone 23 equals the circumference of the cylindrical object 19 to be coated.
  • the length L3 of the second side zone 25 is equal to the length Lll of the first side zone 24. In coating, this provides an overlap of the side zones 24 and 25.
  • the cell pattern on the center zone 23 is that dictated by the density of coat it is desired to apply to the cylindrical surface 10.
  • the cell pattern in each side zone 24, 25 varies along the length of each side zone.
  • the cell pattern in each side zone ranges from a maximum coating material carrying density where continuous with the center zone 23 to a minimum at locations most distant from the center zone 23.
  • coating material density variation is provided by variation in cell diameter, the number of cells per unit area being held constant.
  • cell diameter decreases substantially linearly with distance out from the center zone 23.
  • the graph of FIG. 3 illustrates the amount of coating material applied by the cells of the gravure pattern 15 as a function of length along the gravure pattem15.
  • the amount of coating material applied by the size zone 24 increases going from left to right until it reaches the center zone 23 at which a maximum predetermined density is applied. This maximum predetermined density is applied throughout the center zone 23. At the side zone 24 the density applied decreases continuously going from left to right.
  • the continuous variation of density applied by the side zones 24 and 25 is provided by a change in the diameter of the cells.
  • the number of cells per unit area and the cell depth could also be varied in order to provide this variation in ink carrying capacity but the usual gravure techniques affect primarily cell diameter.
  • the result desired is achieved through a normal gravure plate generation from artwork that is shaded (as represented in FIG. 3) to provide a continuously increasing shading from left to right in the zone 24, a continuous maximum shading throughout the zone 23 and a continuously decreasing shading from left to right throughout the zone 25.
  • a gravure cylinder 14 (see FIG. 5) contains a number of separate gravure patterns 15 spaced around the circumference of the cylinder. Coating material is applied to the cells in these gravure patterns by known techniques not shown in detail herein. Pressure contact between the patterns on the gravure cylinder 14 and the blanket cylinder 18 causes the material carried by the cells in the gravure pattern 15 to be transferred to the blanket cylinder 18 as the gravure and blanket cylinders rotate in contact.
  • the coating material is then carried by the blanket cylinder 18 to the individual cans 10, which are held on a carrier mechanism 20.
  • the blanket cylinder 18 and carrier mechanism 20 are in such registry that the can body 10 contacts the blanket cylinder just prior to the pattern on the blanket and so that they part contact just prior to the end of the pattern on the blanket.
  • Such a registration mechanism is desirable in order to prevent the material that has been applied to the cylindrical body 10 from being transferred back to the blanket 18.
  • FIG. 4 represents the number of degrees of coating application in one embodiment, approximately that which would be applied by the gravure pattern of FIG. 2. Specifically, an overlap of 72 and thus a convolution of 432 is illustrated.
  • FIG. 6 A second embodiment of the invention is illustrated in FIG. 6, in which a gravure cylinder has a gravure area 31 and is comprised of two side zones, a first side zone 32 and a second side zone 33.
  • This FIG. 6 embodiment has no central zone.
  • the cell pattern of each of the two side zones 32, 33 is arranged to provide a maximum amount of coating material at the center of the gravure area 31 where the two side zones are next to one another and to provide a decreasing amount of coating material to either direction of the center line.
  • the two side zones 32, 33 provide a linear decrease of coating material from the center line outward and thus provide two triangular patterns of coating material.
  • the length L4 of side zone 32 is equal to length LS of side zone 33.
  • each side zone has a length equal to the circumference of the can to be coated.
  • the length L4 is equal to the circumference of the can which is to be coated by the gravure area 31 and the length L5 also equals the circumferece of the can to be coated.
  • this FIG. 6 embodiment has a full 360 of coating coverage overlap and thus requires a convolution of applied coating of 720.
  • the invention is described in connec tion with application to the coating of a cylindrical container body.
  • this invention could be adapted to be employed for a coating of tapered bodies such as the small tublike containers in which spreads such as margarine are frequently contained for sale.
  • the configuration of the gravure pattern would have a corresponding taper, as is known in this art.
  • the basic concept of two zones at the ends of the gravure pattern which provides overlapping printing on the container with an appropriate substantially continuous and gradual change in the extent of the coverage throughout these side zones would still apply.
  • the surface involved would have to be a continuous surface since the coverage carried by one of the two side zones will overlap with the coverage provided by the other of the two side zones. More specifically, in all presently contemplated embodiments, the continuous surface involved is generated as a surface of revolution about an axis.
  • a cylindrical gravure surface having a gravure pattern, said pattern having first and second side zones, the cells in each of said side zones varying in capacity to apply coating material according to a predetermined pattern as a function of circumferential distance along the gravure surface in the direction in which the gravure surface is successively applied to the surface being coated, the positioning of said side zones along the circumference of said cylinder together with the width of said side zones being related to the circumferential distance around the surface to be coated such that the portion of the surface being coated by said first side zone will also be coated by said second side zone, said pattern in first side zone being complementary in density to said pattern in said second side zone whereby to provide substantially uniform overall coating density.
  • said gravure pattern having a central zone, said side zones being positioned on either side of said central zone, the cell pattern in said central zone providing a uniform coating density on the surface to be coated equal to said uniform overall coating density provided by the overlapping of said side zones.
  • said pattern in each of said side zones is a substantially linear variation in cell capacity to apply coatingmaterial, said variation being from a maximum at the ends of said side zones closest to one another to a minimum at the ends of said side zones most removed from one another.
  • said pattern in each of said side zones is a substantially linear variation in cell capacity to apply coating material, said variation being from a maximum at the ends of said side zones closest to one another to a minimum at the ends of said side zones most removed from one another.
  • said first and second side zones are of substantially equal circumferential width.

Landscapes

  • Coating Apparatus (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Printing Methods (AREA)
  • Printing Plates And Materials Therefor (AREA)
US00333185A 1973-02-16 1973-02-16 Gravure coating Expired - Lifetime US3817209A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US00333185A US3817209A (en) 1973-02-16 1973-02-16 Gravure coating
CA191,099A CA1011940A (en) 1973-02-16 1974-01-28 Gravure printing cylinder
AU65372/74A AU479945B2 (en) 1973-02-16 1974-02-08 Gravure coating
NL7401904A NL7401904A (xx) 1973-02-16 1974-02-12
FR7404902A FR2218196B1 (xx) 1973-02-16 1974-02-13
DE19742406847 DE2406847A1 (de) 1973-02-16 1974-02-13 Tiefdruckmaschine zum ueberziehen kontinuierlicher oberflaechen
GB685174A GB1422495A (en) 1973-02-16 1974-02-14 Printing cylinder and process
JP49017697A JPS49111705A (xx) 1973-02-16 1974-02-15

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00333185A US3817209A (en) 1973-02-16 1973-02-16 Gravure coating

Publications (1)

Publication Number Publication Date
US3817209A true US3817209A (en) 1974-06-18

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ID=23301700

Family Applications (1)

Application Number Title Priority Date Filing Date
US00333185A Expired - Lifetime US3817209A (en) 1973-02-16 1973-02-16 Gravure coating

Country Status (7)

Country Link
US (1) US3817209A (xx)
JP (1) JPS49111705A (xx)
CA (1) CA1011940A (xx)
DE (1) DE2406847A1 (xx)
FR (1) FR2218196B1 (xx)
GB (1) GB1422495A (xx)
NL (1) NL7401904A (xx)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4672893A (en) * 1985-03-21 1987-06-16 Paramount Packaging Flexo-gravure printing
US5148742A (en) * 1991-01-10 1992-09-22 Belgium Tool And Die Company Can coater with improved deactivator responsive to absence of a workpiece
AU690652B2 (en) * 1994-03-28 1998-04-30 Rexam Industries Corp. Gravure roll and process for uniform coating gradient
US5998953A (en) * 1997-08-22 1999-12-07 Minolta Co., Ltd. Control apparatus of mobile that applies fluid on floor
EP1110740A1 (en) * 1998-09-02 2001-06-27 Star Micronics Co., Ltd. Method and apparatus for printing on endless medium, method and apparatus for rotary printing, and rotary printing head
WO2006119525A2 (de) * 2005-05-10 2006-11-16 Oesterreichische Banknoten- Und Sicherheitsdruck Gmbh Drucktuch
US20110162542A1 (en) * 2008-09-04 2011-07-07 Shigeo Nakamura Seamless can, printing plate, curved surface printing machine, method for printing on seamless can, and method for manufacturing seamless can
US20130176358A1 (en) * 2010-10-19 2013-07-11 Toyo Seikan Kaisha, Ltd. Printed seamless can and method of producing the same
US10418544B2 (en) * 2015-05-21 2019-09-17 Usui Co., Ltd. Facility and method for manufacturing torque sensor shaft

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6017333U (ja) * 1984-06-05 1985-02-05 株式会社ヤクルト本社 円形断面容器の多色印刷装置
US5430117A (en) * 1993-07-14 1995-07-04 Mitsui Petrochemical Industries, Ltd. Nonconjugated diene-vinyl aromatic-α-olefin interpolymers
WO2020004032A1 (ja) * 2018-06-26 2020-01-02 東洋製罐株式会社 連続印刷システム

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2638050A (en) * 1952-05-28 1953-05-12 Multicolor Gravure Corp Method of making printing rolls

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2638050A (en) * 1952-05-28 1953-05-12 Multicolor Gravure Corp Method of making printing rolls

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4672893A (en) * 1985-03-21 1987-06-16 Paramount Packaging Flexo-gravure printing
US5148742A (en) * 1991-01-10 1992-09-22 Belgium Tool And Die Company Can coater with improved deactivator responsive to absence of a workpiece
AU690652B2 (en) * 1994-03-28 1998-04-30 Rexam Industries Corp. Gravure roll and process for uniform coating gradient
US5998953A (en) * 1997-08-22 1999-12-07 Minolta Co., Ltd. Control apparatus of mobile that applies fluid on floor
EP1110740A1 (en) * 1998-09-02 2001-06-27 Star Micronics Co., Ltd. Method and apparatus for printing on endless medium, method and apparatus for rotary printing, and rotary printing head
EP1110740A4 (en) * 1998-09-02 2003-04-02 Star Mfg Co METHOD AND DEVICE FOR PRINTING ON ENDLESS MATERIAL, METHOD AND DEVICE FOR ROTATING PRINTING AND ROTATING PRINT HEAD
WO2006119525A2 (de) * 2005-05-10 2006-11-16 Oesterreichische Banknoten- Und Sicherheitsdruck Gmbh Drucktuch
WO2006119525A3 (de) * 2005-05-10 2007-02-15 Oebs Gmbh Drucktuch
US20080271619A1 (en) * 2005-05-10 2008-11-06 Oesterreichische Banknoten-Und Sicherheitsdruck Gmbh Printing Blanket
US20110162542A1 (en) * 2008-09-04 2011-07-07 Shigeo Nakamura Seamless can, printing plate, curved surface printing machine, method for printing on seamless can, and method for manufacturing seamless can
CN102143846A (zh) * 2008-09-04 2011-08-03 东洋制罐株式会社 无缝罐、印版、无缝罐用曲面印刷机、对无缝罐的印刷方法、以及无缝罐的制造方法
US8747975B2 (en) 2008-09-04 2014-06-10 Toyo Seikan Kaisha, Ltd. Seamless can and method for printing on seamless can
US20130176358A1 (en) * 2010-10-19 2013-07-11 Toyo Seikan Kaisha, Ltd. Printed seamless can and method of producing the same
US8899718B2 (en) * 2010-10-19 2014-12-02 Toyo Seikan Kaisha, Ltd. Printed seamless can and method of producing the same
US10418544B2 (en) * 2015-05-21 2019-09-17 Usui Co., Ltd. Facility and method for manufacturing torque sensor shaft

Also Published As

Publication number Publication date
NL7401904A (xx) 1974-08-20
GB1422495A (en) 1976-01-28
JPS49111705A (xx) 1974-10-24
DE2406847A1 (de) 1974-08-22
FR2218196B1 (xx) 1976-11-26
AU6537274A (en) 1975-08-14
CA1011940A (en) 1977-06-14
FR2218196A1 (xx) 1974-09-13

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AS Assignment

Owner name: COORS BREWING COMPANY, GOLDEN, CO 80401 A CORP. OF

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:ADOLPH COORS COMPANY, A CORP. OF CO;REEL/FRAME:005610/0099

Effective date: 19901231