GB1108102A - Improvements in and relating to image-production using magnetisable substances - Google Patents

Improvements in and relating to image-production using magnetisable substances

Info

Publication number
GB1108102A
GB1108102A GB14069/65A GB1406965A GB1108102A GB 1108102 A GB1108102 A GB 1108102A GB 14069/65 A GB14069/65 A GB 14069/65A GB 1406965 A GB1406965 A GB 1406965A GB 1108102 A GB1108102 A GB 1108102A
Authority
GB
United Kingdom
Prior art keywords
particles
different
printing
permeability
soft
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
GB14069/65A
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.)
Agfa Gevaert NV
Original Assignee
Agfa AG
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 Agfa AG filed Critical Agfa AG
Publication of GB1108102A publication Critical patent/GB1108102A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G19/00—Processes using magnetic patterns; Apparatus therefor, i.e. magnetography
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
    • G03G5/16—Layers for recording by changing the magnetic properties, e.g. for Curie-point-writing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer

Abstract

1,108,102. Printing plates; magnetic images. AGFA A.G. 2 April, 1965 [4 April, 1964], No. 14069/65. Heading B6C. [Also in Division H1] A magnetic printing form comprises a layer of particles or wires of a hard magnetic substance coated with, or supported in a matrix of, a soft magnetic substance of temperaturedependent permeability, which layer has been subjected to a uniform magnetizing or demagnetizing field and simultaneously to a thermal image of the original. For colour printing groups of different coated particles are used, each group being associated with a particular colour. In Figs. 5 and 6, hard particles 9-12 (having magnetization curves k) with soft coatings 13-16 (having permeability curves m) are associated with Y, R, B and Bk resp.; thus at 70-80‹ C., only Y particles are magnetizable. The image is developed by offering differently coloured inks to the layer consecutively, either at different distances (Fig. 7) or at different temperatures (Fig. 8), or by using inks of different permeability. Colours may be applied in the reverse order from that shown, for transfer printing. For tone printing groups of the same or different hard particles may have the same or different soft coatings or matrix, so that using a single colour ink, the darkest areas are produced when most particles are magnetized. In this case, the permeability of the soft material may vary linearly with temperature (line l in Fig. 6), to produce a gradual temperature effect. Information printing: each group of particles may correspond to an information group, so that information can be printed selectively.
GB14069/65A 1964-04-04 1965-04-02 Improvements in and relating to image-production using magnetisable substances Expired GB1108102A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA45665A DE1300145B (en) 1964-04-04 1964-04-04 Magnetic recording process and magnetic recording medium for carrying out the process

Publications (1)

Publication Number Publication Date
GB1108102A true GB1108102A (en) 1968-04-03

Family

ID=6934835

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14069/65A Expired GB1108102A (en) 1964-04-04 1965-04-02 Improvements in and relating to image-production using magnetisable substances

Country Status (5)

Country Link
US (1) US3613100A (en)
BE (1) BE662106A (en)
DE (1) DE1300145B (en)
GB (1) GB1108102A (en)
NL (1) NL6504167A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012156725A1 (en) 2011-05-16 2012-11-22 The Technology Partnership Plc Dose container

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2054117A1 (en) * 1970-11-04 1972-05-10 Agfa Gevaert Ag Magnetic imaging method and device for carrying out the method
US3965478A (en) * 1973-06-22 1976-06-22 Raytheon Company Multicolor magnetographic printing system
US4397929A (en) * 1981-06-18 1983-08-09 E. I. Du Pont De Nemours & Co. Process for generating a latent magnetic image
US6423264B1 (en) * 1999-10-14 2002-07-23 Delphi Technologies, Inc. Process for forming rotating electromagnets having soft and hard magnetic components
DE10159526A1 (en) * 2001-12-05 2003-06-26 Daniel Bossert printing process
US20040091647A1 (en) * 2002-07-18 2004-05-13 Adams Matthew Thomas Method for making direct marketing composite materials and barcode for composite materials
US20050084658A1 (en) * 2003-10-21 2005-04-21 Adams Matthew T. Dual contrast embedded mesh for identification of various composite materials
US7733684B2 (en) * 2005-12-13 2010-06-08 Kabushiki Kaisha Toshiba Data read/write device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB671269A (en) * 1949-11-02 1952-04-30 Brush Dev Co Improvements in or relating to multi-layer magnetic record members

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012156725A1 (en) 2011-05-16 2012-11-22 The Technology Partnership Plc Dose container

Also Published As

Publication number Publication date
US3613100A (en) 1971-10-12
DE1300145B (en) 1969-07-31
BE662106A (en)
NL6504167A (en) 1965-10-05

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