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CA1273599A - Screen material for printing materials - Google Patents

Screen material for printing materials

Info

Publication number
CA1273599A
CA1273599A CA000480902A CA480902A CA1273599A CA 1273599 A CA1273599 A CA 1273599A CA 000480902 A CA000480902 A CA 000480902A CA 480902 A CA480902 A CA 480902A CA 1273599 A CA1273599 A CA 1273599A
Authority
CA
Canada
Prior art keywords
screen
skeleton
metal
screen material
openings
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
CA000480902A
Other languages
French (fr)
Inventor
Bob Meuzelaar
Henricus Hermanus Thuis
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.)
Stork Screens BV
Original Assignee
Stork Screens BV
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 Stork Screens BV filed Critical Stork Screens BV
Application granted granted Critical
Publication of CA1273599A publication Critical patent/CA1273599A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F15/00Screen printers
    • B41F15/14Details
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41CPROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C1/00Forme preparation
    • B41C1/14Forme preparation for stencil-printing or silk-screen printing
    • B41C1/142Forme preparation for stencil-printing or silk-screen printing using a galvanic or electroless metal deposition processing step
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41CPROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C1/00Forme preparation
    • B41C1/14Forme preparation for stencil-printing or silk-screen printing
    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D1/00Electroforming
    • C25D1/08Perforated or foraminous objects, e.g. sieves

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Electrochemistry (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Manufacturing Of Printed Wiring (AREA)
  • Paper (AREA)
  • Coloring (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Photosensitive Polymer And Photoresist Processing (AREA)
  • Glass Compositions (AREA)
  • Printing Methods (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

ABSTRACT OF THE DISCLOSURE
A metal screen material comprising a metal screen, preferably a cylindrical screen, obtained by electrolytic deposition of a metal upon a screen skeleton and said screen material having a fineness of 250 to 1000 mesh. The screen opening is preferably defined by curved walls extending from the lower side of the screen opening to the upper side of the screen opening, the upper side of the screen opening having an area which is larger than the lower side of the screen opening. The screen material is advantageously obtained by electrolytic deposition of a metal from an electrolytic bath upon the screen skeleton, the bath solution passing, at least during part of the electrolytic depositing time, through the openings in the screen skeleton with the skeleton connected as the cathode, either in one direction or in the other reverse direction.

Description

r;St~
BACKGROUND OF THE I NVENTI ON
This invention relates to a screen material having a fineness of at least 250 mesh and to a method of printing materials by means of this screen material.
For printings for which great detail fineness and detail sharpness are desirable, screen material is known to be used in the form of a woven polyester gauze, said polyester gauze meeting the requirments of the fineness desired.
Said known screen material presents the drawback that at all times it has to be kept in store under tension mounted on frames.
This requires large storage facilities, since a particular screen material which, for instance, is not being used for a long time, must nevertheless be stored in the pretensioned condition on a frame.
Another drawback is that, after providing the woven polyester gauze with holes, this gauze loses its dimensional stability, thus precluding the possibility of meeting the requirments applicable to a particular printing. A further drawback is that the known screen material does not very well assume its original condition after having been used, so that when using such screen material the quality of the product being printed greatly decreases after a relatively short period of time.
Still another drawback i8 that cross threads and weft threads of the woven polyester gauze are not anchored with each other, so that, when using a screen having screen openings of 400 mesh, it frequently occurs that a large number of openings have dimensions that differ from those desired.
Last, there is an important drawback in that rounded threads are used for said 6creen materials, as a result of which the permeability to material passing through the screen openings strongly depends upon the thickness of the threads from which the polyester gauze is made.
SUMMARY OF THE INVEN~ION
It is now the object of the invention to provide a screen material which does not have said drawbacks and which is particularly we'1 suited for printings to be performed with great ~ t~l3 detail sharpness and detail fineness, without the need for said screen material to be stored in a pretensioned condition on frames, thus making it possible to gain considerable savings in terms of storage 6pace requirements.
In addition, said screen material retains its dimensional stability and so provides for a 6ubstantially increased operation life.
According to the invention, a screen for printing, or the like, is provided which comprises a ~creen skeleton of the type having a fine mesh at least one layer of metal electrolytically deposited on said skeleton; the screen having fineness of between 250 and 1000 mesh; the screen having a top surface and a bottom surface, the skeleton being located relatively close to the bottom surface and relatively remote from the top ~urface; the mesh openings of the screen having each a cross-sectional area which gradually increases in the direction from said bottom surface to said top surface.
In another aspect of the invention, a method is provided for printing materials said screen material being formed by a screen having the following features: the screen material includes a screen 6keleton of the type having a fine mesh; at least one layer o~ metal has been electrolytically deposited on said skeleton; the screen material has the finenes6 of between 250 and 1000 mesh; the screen material has a top surface and a bottom surface, the s~eleton being located relative~y close to the bottom surface and relatively remote from the top surface; the mesh openings of the screen material have each a cross sectional area which gradually increases in the direction from said bottom surface to said top surface.
When using such a screen, printed products are obtained which have excellent propertiee, al~o when such screens are used over an extended period of time.
It is quite surprising that it is possible to form metal screens having such a fineness.
With particular advantage, the upper side of the screen opening has a surface which is larger than the lower side of the screen opening. Such type of screen presents excellent ~ 3 properties.
Quite effectively, the screen opening is defined by curved walls extending from the lower side of the screen opening to the upper side of the screen opening as this provides excellent printing results.
The screen material is very effectively obtained by electrolytic deposition of a metal upon a screen skeleton, the bath ~olution passing, at least during a part of the electrolytlc depositing time, through the openings in the screen skeleton connected as the cathode.
The forced movement of the bath solution through the openings in the screen skeleton results in screens being formed which have the aforesaid openings and afford the forming of a relatively rigid screen material that has a very great fineness as well.
With particular advantage, the screen material consists of a cylindrical screen, which type of screen has not been available so far with the fineness as indicated. It goes without saying that this makes it possible to produce in a very simple manner printings having the detail fineness and great detail sharpness as desired.
The invention further relates to a method for printing materials while using a screen material having a fineness of at least 250 mesh, wherein a metal screen is used which was obtained by electrolytic deposition of at least one metal upon a screen skeleton and having a fineness of 250 to 1000 mesh.
In the method of the invention, printing effectively proceeds by using a screen obtained by electrolytic deposition, in which case at least during part of the electrolytic depositing time the bath solution flows through the openings in the skeleton screen.
Other attendant advantages will be more readily appreciated as the same becomes better understood by reference to the following detailed description and considered in connection with the accompanying drawings in which like reference symbols designate like parts without the figures.

r1,'~t"~
DESCRI PTI ON OF THE: DRAWI NGS
FIG. 1 is a view of a screen material according to the invention;
FIG. 2 is sectional view of a screen material according to the invention; and FIG. 3 is a view of a cylindrical screen material according to the invention.
DESCRI PTI ON OF THE PREFERRED EMBODI MENTS
FIG. 1 shows a screen material 1 consisting of a metal screer. 1 obtained by electrolytic deposition of at least one metal 2 upon a screen skeleton 3. The screen has a fineness of 400 mesh, so that there are 400 openings 4 per 2,54 cm.
The electrolytic bath as used for depositing said metal is a well known electrolytic bath containing an organic compound comprising at least one unsaturated bond which does not belong to a =C-S=O group such as butyne diol.
FIG. 2 shows more particularly the shape of a number of openings in the screen. As seen, the free upper side 5 of the screen opening has a larger area than the area of the screen opening on the lower side of the screen 6.
The screen opening is defined by the curved walls 3 of the lands bounding the screen opening 4.
In addition, it is evident that the metal deposited by electrolytic deposition mainly extends on one side of the screen ~5 skeleton. On the other side of the screen skeleton, only a small layer thickness 7 of the electrolytically deposited metal has precipitated. This is more particularly shown in FIG. 2.
The shape of the screen openings is obtained by connecting a screen skeleton as the cathode and by having the electrolytic solution flow ln the direction from the cathode to the anode or in the reverse direction Preferably the direction of flow is from the cathode to the anode.
The screen according to the invention is particularly well adapted for printings for which hitherto woven polyester gauze has been used.
The screen material according to the invention distinguishes itself very favorably from the woven polyester gauze by the dimensional stability of the screen materlal used, which results in the remaining screen material retaining its nondeformable character when forming the openings in the screen material, the screen permeability being no longer dependent upon the thickness of the lands of the screen material by properly selecting the walls of the screen openings, and, finally, the size of the screen openings being ensured at all times, also after an extended period of use, this being in contradistinction to applications using wo~en polyester gauze.
FIG. 3 shows a cylindrical screen material according to the invention in the form of a cylindrical screen 1' said cylindrical screen material being particularly suitable for continuous printing.

Claims (4)

The embodiments of the invention in which an exclusive right or privilege is claimed are defined as follows:
1. A screen for printing, or the like, comprising:
a) a screen skeleton of the type having a fine mesh;
b) at least one layer of metal electrolytically deposited on said skeleton;
c) the screen having fineness of between 250 and 1000 mesh;
d) the screen having a top surface and a bottom surface, the skeleton being located relatively close to the bottom surface and relatively remote from the top surface;
e) the mesh openings of the screen having each a cross-sectional area which gradually increases in the direction from said bottom surface to said top surface.
2. The screen of claim 1, wherein the screen openings are defined by walls, each of the walls being generally convexly curved into the respective opening and the walls extending from the top surface to the bottom surface of the screen.
3. The screen of claim 1, having a flat shape.
4. The screen of claim 1, having the shape of a cylinder wherein said top surface faces outwardly or inwardly of the cylinder.
CA000480902A 1984-05-07 1985-05-07 Screen material for printing materials Expired - Lifetime CA1273599A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8401454A NL8401454A (en) 1984-05-07 1984-05-07 SCREEN MATERIAL FOR PRINTING MATERIALS.
NL8401454 1984-05-07

Publications (1)

Publication Number Publication Date
CA1273599A true CA1273599A (en) 1990-09-04

Family

ID=19843913

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000480902A Expired - Lifetime CA1273599A (en) 1984-05-07 1985-05-07 Screen material for printing materials

Country Status (19)

Country Link
EP (1) EP0164149B1 (en)
JP (1) JPS6129845A (en)
KR (1) KR910007077B1 (en)
AT (1) ATE39645T1 (en)
AU (1) AU577851B2 (en)
BR (1) BR8502149A (en)
CA (1) CA1273599A (en)
DE (1) DE3567168D1 (en)
DK (1) DK162382C (en)
FI (1) FI80403C (en)
HK (1) HK8090A (en)
IN (1) IN165614B (en)
MX (1) MX166977B (en)
NL (1) NL8401454A (en)
NO (1) NO165792C (en)
NZ (1) NZ211971A (en)
PT (1) PT80399B (en)
TR (1) TR22744A (en)
ZA (1) ZA853333B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2620157B2 (en) * 1990-10-16 1997-06-11 株式会社 ソノコム Digitized screen version
WO1994024365A1 (en) * 1993-04-16 1994-10-27 Sigurd Fongen Means for filtering and fractionation of suspensions containing fibres, fibre fragments, fines and other particles
DE102008025927A1 (en) * 2008-05-29 2009-12-24 Zyrus Beteiligungsgesellschaft Mbh & Co. Patente I Kg Rotary press
ES2450077T3 (en) * 2009-10-23 2014-03-21 Spgprints Austria Gmbh Procedure for manufacturing perforated or partially perforated insoles
KR101773089B1 (en) 2011-02-08 2017-09-13 삼성디스플레이 주식회사 Mesh for screen printing and method forming patterns using the mesh for screen printing

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE224182C (en) *
FR645895A (en) * 1927-12-19 1928-11-03 Manufacturing process for fine pore wire mesh filters
US1792197A (en) * 1929-05-15 1931-02-10 Swifton Mfg Company Foraminous material and method of making the same
US1934643A (en) * 1930-01-14 1933-11-07 Rafton Engineering Corp Wire cloth and method of producing the same
DE653719C (en) * 1930-03-22 1937-12-02 Carl Still G M B H Process for compressing the coal feed in coking chamber furnaces
GB634217A (en) * 1947-05-08 1950-03-15 John Kilner Wells Improvements in and relating to sieves, perforate screens, or filter plates
DE941885C (en) * 1950-07-01 1956-04-19 Praez S Drahtgewebefabrik Method and device for the production of fine-meshed screens
GB756315A (en) * 1954-09-24 1956-09-05 Almerindo Jaime Correia De Oli Improvements in or relating to stencil printing cylinders
DE1141295B (en) * 1955-07-11 1962-12-20 Dr Elmar Messerschmidt Method of making stencils
GB1018245A (en) * 1963-05-03 1966-01-26 Smidth & Co As F L Improvements relating to sieving screens
DE1909870A1 (en) * 1969-02-27 1970-09-10 Degussa Galvanic deposition of metals on porous moul - ded bodies
DE2116366A1 (en) * 1970-04-04 1971-10-28 Bozzone Amedeo Gentile Pressure roller and method of manufacture
JPS555107B2 (en) * 1972-04-13 1980-02-04
DE2407091A1 (en) * 1973-04-12 1974-10-31 Champion Spark Plug Co METHOD OF MANUFACTURING FINE WIRE GRID
JPS5333706A (en) * 1976-09-08 1978-03-29 Kousoku Denki Chiyuuzou Kk Method of making plate allowing depicting of light and shade pattern by means of rotary screen
JPS55500670A (en) * 1978-09-26 1980-09-18
JPS5613195A (en) * 1979-06-20 1981-02-09 Toshin Kogyo Kk Cylinder for rotary screen with large opening area ratio and production thereof
NL8005427A (en) * 1980-09-30 1982-04-16 Veco Beheer Bv METHOD FOR MANUFACTURING SCREEN MATERIAL, SCREENING MATERIAL OBTAINED AND APPARATUS FOR CARRYING OUT THE METHOD
JPS57104143A (en) * 1980-12-22 1982-06-29 Sono Toshio Rotary screen plate for use in thick printing
NL8105150A (en) * 1981-11-13 1983-06-01 Veco Beheer Bv METHOD FOR MANUFACTURING SCREEN MATERIAL, SCREENING MATERIAL OBTAINED, AND APPARATUS FOR CARRYING OUT THE METHOD

Also Published As

Publication number Publication date
KR850008132A (en) 1985-12-13
NO165792B (en) 1991-01-02
FI851777L (en) 1985-11-08
DK200685D0 (en) 1985-05-06
NL8401454A (en) 1985-12-02
IN165614B (en) 1989-11-25
JPH0477898B2 (en) 1992-12-09
NZ211971A (en) 1987-05-29
DK162382B (en) 1991-10-21
EP0164149A1 (en) 1985-12-11
AU4205385A (en) 1985-11-14
FI851777A0 (en) 1985-05-06
DK162382C (en) 1992-03-16
FI80403C (en) 1990-06-11
ATE39645T1 (en) 1989-01-15
DK200685A (en) 1985-11-08
DE3567168D1 (en) 1989-02-09
JPS6129845A (en) 1986-02-10
NO851792L (en) 1985-11-08
TR22744A (en) 1988-05-26
KR910007077B1 (en) 1991-09-16
PT80399B (en) 1987-05-29
ZA853333B (en) 1985-12-24
PT80399A (en) 1985-06-01
FI80403B (en) 1990-02-28
NO165792C (en) 1991-04-10
HK8090A (en) 1990-02-09
MX166977B (en) 1993-02-15
EP0164149B1 (en) 1989-01-04
BR8502149A (en) 1986-01-07
AU577851B2 (en) 1988-10-06

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