GB1246313A - Improvements in and relating to photographic films - Google Patents

Improvements in and relating to photographic films

Info

Publication number
GB1246313A
GB1246313A GB4853868A GB4853868A GB1246313A GB 1246313 A GB1246313 A GB 1246313A GB 4853868 A GB4853868 A GB 4853868A GB 4853868 A GB4853868 A GB 4853868A GB 1246313 A GB1246313 A GB 1246313A
Authority
GB
United Kingdom
Prior art keywords
film
heat
films
relating
oct
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
Application number
GB4853868A
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
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 claimed from JP42076326A external-priority patent/JPS4838431B1/ja
Application filed by Ricoh Co Ltd filed Critical Ricoh Co Ltd
Publication of GB1246313A publication Critical patent/GB1246313A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/36—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using a polymeric layer, which may be particulate and which is deformed or structurally changed with modification of its' properties, e.g. of its' optical hydrophobic-hydrophilic, solubility or permeability properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/0005—Enlarging or reduction of graphic information on a support by stretching or contracting the support, optionally in combination with the recording

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)

Abstract

1,246,313. Heat-shrinkable polystyrene film. RICOH K.K. 14 Oct., 1968 [30 Oct., 1967; 28 Nov., 1967], No. 48538/68. Heading B5B. [Also in Division G2] Shrinkable polystyrene film is made by (a) winding melt extruded and stretched film on a reel and subjecting it to 80-90‹ C. for 2-3 days; (b) immersing melt extruded and stretched film in water at 80-90‹ C. for 2-3 hours, or (c) dissolving prestretched film in a solvent and recasting the solution. Films (a) and (b) have LD and MD heat-shrinkages less than 8%; in one example the LD value is 7% and the MD value is 1%. All films wrinkle on exposure to heat (see Division G2).
GB4853868A 1967-10-30 1968-10-14 Improvements in and relating to photographic films Expired GB1246313A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP6937267 1967-10-30
JP42076326A JPS4838431B1 (en) 1967-11-28 1967-11-28

Publications (1)

Publication Number Publication Date
GB1246313A true GB1246313A (en) 1971-09-15

Family

ID=26410575

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4853868A Expired GB1246313A (en) 1967-10-30 1968-10-14 Improvements in and relating to photographic films

Country Status (3)

Country Link
DE (1) DE1805890A1 (en)
FR (1) FR1587196A (en)
GB (1) GB1246313A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL39731A (en) * 1971-07-15 1975-07-28 Energy Conversion Devices Inc Method for producing images
US6180256B1 (en) * 1997-08-26 2001-01-30 Arkwright Incorporated Heat shrinkable ink jet recording medium

Also Published As

Publication number Publication date
DE1805890A1 (en) 1969-05-29
FR1587196A (en) 1970-03-13

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