GB2001559A - Preparation of base for offset printing plates - Google Patents

Preparation of base for offset printing plates

Info

Publication number
GB2001559A
GB2001559A GB7830662A GB7830662A GB2001559A GB 2001559 A GB2001559 A GB 2001559A GB 7830662 A GB7830662 A GB 7830662A GB 7830662 A GB7830662 A GB 7830662A GB 2001559 A GB2001559 A GB 2001559A
Authority
GB
United Kingdom
Prior art keywords
ribbons
offset printing
printing plates
base
thickness
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.)
Granted
Application number
GB7830662A
Other versions
GB2001559B (en
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.)
TEICH AG FOLIENWALZWERK
Original Assignee
TEICH AG FOLIENWALZWERK
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 TEICH AG FOLIENWALZWERK filed Critical TEICH AG FOLIENWALZWERK
Publication of GB2001559A publication Critical patent/GB2001559A/en
Application granted granted Critical
Publication of GB2001559B publication Critical patent/GB2001559B/en
Expired legal-status Critical Current

Links

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
    • B41N1/00—Printing plates or foils; Materials therefor
    • B41N1/04—Printing plates or foils; Materials therefor metallic
    • B41N1/08—Printing plates or foils; Materials therefor metallic for lithographic printing
    • B41N1/083—Printing plates or foils; Materials therefor metallic for lithographic printing made of aluminium or aluminium alloys or having such surface layers

Landscapes

  • Printing Plates And Materials Therefor (AREA)

Abstract

A process for the preparation of an improved base for offset printing plates comprises superimposing together two pre-rolled aluminium ribbons, rolling the said superimposed ribbons so that each individual ribbon has a thickness which is substantially less than its original value, whereby the mutual contact surfaces have a uniform surface roughness, separating the two ribbons and forming a stable aluminium oxide layer on the uniformly roughened surfaces which have improved properties when used as a base for offset printing plates. The initial ribbons may each have a thickness of 0.12 to 0.5 mm. in which case they are rolled to individual thicknesses of 0.08 to 0.22 mm. Alternatively, the initial ribbons may each have a thickness of 0.02 to 0.1 mm. in which case they are rolled to individual thicknesses of 0.015 to 0.04 mm. and the separated ribbons are attached to a stiff carrier material before or after the development of the oxide layer.
GB7830662A 1977-07-25 1978-07-21 Preparation of base for offset printing plates Expired GB2001559B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU538077 1977-07-25

Publications (2)

Publication Number Publication Date
GB2001559A true GB2001559A (en) 1979-02-07
GB2001559B GB2001559B (en) 1982-01-20

Family

ID=3695842

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7830662A Expired GB2001559B (en) 1977-07-25 1978-07-21 Preparation of base for offset printing plates

Country Status (1)

Country Link
GB (1) GB2001559B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995008408A1 (en) * 1993-09-21 1995-03-30 Alcan International Limited Aluminium sheet with rough surface

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995008408A1 (en) * 1993-09-21 1995-03-30 Alcan International Limited Aluminium sheet with rough surface
US5998044A (en) * 1993-09-21 1999-12-07 Alcan International Limited Aluminium sheet with rough surface
US6524768B1 (en) 1993-09-21 2003-02-25 Alcan International Limited Aluminium sheet with rough surface

Also Published As

Publication number Publication date
GB2001559B (en) 1982-01-20

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930721