GB1442688A - Paper sheets from which indicia are readily erasable - Google Patents
Paper sheets from which indicia are readily erasableInfo
- Publication number
- GB1442688A GB1442688A GB15661/74A GB1566174A GB1442688A GB 1442688 A GB1442688 A GB 1442688A GB 15661/74 A GB15661/74 A GB 15661/74A GB 1566174 A GB1566174 A GB 1566174A GB 1442688 A GB1442688 A GB 1442688A
- Authority
- GB
- United Kingdom
- Prior art keywords
- base
- paper
- diazotype
- diazo
- coated
- 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
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C1/00—Photosensitive materials
- G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
- G03C1/775—Photosensitive materials characterised by the base or auxiliary layers the base being of paper
- G03C1/785—Photosensitive materials characterised by the base or auxiliary layers the base being of paper translucent
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/80—Paper comprising more than one coating
- D21H19/84—Paper comprising more than one coating on both sides of the substrate
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C1/00—Photosensitive materials
- G03C1/52—Compositions containing diazo compounds as photosensitive substances
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C1/00—Photosensitive materials
- G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
- G03C1/81—Photosensitive materials characterised by the base or auxiliary layers characterised by anticoiling means
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C1/00—Photosensitive materials
- G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
- G03C1/95—Photosensitive materials characterised by the base or auxiliary layers rendered opaque or writable, e.g. with inert particulate additives
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31652—Of asbestos
- Y10T428/31667—Next to addition polymer from unsaturated monomers, or aldehyde or ketone condensation product
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31855—Of addition polymer from unsaturated monomers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31855—Of addition polymer from unsaturated monomers
- Y10T428/3188—Next to cellulosic
- Y10T428/31895—Paper or wood
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31855—Of addition polymer from unsaturated monomers
- Y10T428/3188—Next to cellulosic
- Y10T428/31895—Paper or wood
- Y10T428/31906—Ester, halide or nitrile of addition polymer
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31855—Of addition polymer from unsaturated monomers
- Y10T428/31909—Next to second addition polymer from unsaturated monomers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31855—Of addition polymer from unsaturated monomers
- Y10T428/31909—Next to second addition polymer from unsaturated monomers
- Y10T428/31928—Ester, halide or nitrile of addition polymer
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
- Paints Or Removers (AREA)
Abstract
1442688 Diazotype materials ANDREWS PAPER & CHEMICAL CO 9 April 1974 [10 April 1973] 15661/74 HeadingG2C A diazotype material comprises a flexible paper base 18 having at least two layers coated on to one side of the base, one of the layers 16' containing diazo sensitized components and the other or another layer 20' forming an interlayer and containing vinyl chloride/acrylate copolymer, whereby diazo reproduction 12, 14 is easily erasable by mechanical means without damaging the paper base. The sheet is preferably coated on both sides (as shown) or may only be coated on one side, Fig. 1 (not shown), whereupon the back of the base is given an anticurl layer. The coatings may include a pre-coat 22' for the diazotype layer. The interlayer may also contain silica, Example 1. Suitable pre-coats contain silica, polyvinyl acetate, wax and optionally polyvinyl alcohol Example 1, 4. Suitable diazo compositions are given, Example 1, 4, and an anticurl coating of silica, urea and vinyl acetate copolymer may be used, Example 1. The paper support may first be impregnated with styrene dimer solution and dried to render it translucent, Example 3.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US349727A US3923518A (en) | 1973-04-10 | 1973-04-10 | Erasable diazotype material with vinyl chloride and methyl acrylate copolymer interlayer |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1442688A true GB1442688A (en) | 1976-07-14 |
Family
ID=23373695
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB15661/74A Expired GB1442688A (en) | 1973-04-10 | 1974-04-09 | Paper sheets from which indicia are readily erasable |
Country Status (4)
Country | Link |
---|---|
US (1) | US3923518A (en) |
CA (1) | CA1013992A (en) |
DE (1) | DE2417278A1 (en) |
GB (1) | GB1442688A (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4272605A (en) * | 1975-06-09 | 1981-06-09 | Western Litho Plate & Supply Co. | Base plate and lithographic plate prepared by sensitization thereof |
US4272604A (en) * | 1975-06-09 | 1981-06-09 | Western Litho Plate & Supply Co. | Base plate and lithographic plate prepared by sensitization thereof |
US4374190A (en) * | 1978-09-28 | 1983-02-15 | Am International, Inc. | Erasable intermediate diazo-type paper |
US4792515A (en) * | 1987-01-08 | 1988-12-20 | Andrews Paper & Chemical Co., Inc. | Erasable diazotype material |
US5006389A (en) * | 1990-07-30 | 1991-04-09 | Teledyne Industries, Inc. | Erasable xerographic vellum |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2360216A (en) * | 1943-06-08 | 1944-10-10 | Eastman Kodak Co | Subbing photographic paper supports |
US2501874A (en) * | 1946-06-12 | 1950-03-28 | Gen Aniline & Film Corp | Photographic diazo-sensitized glassine paper |
US2613149A (en) * | 1947-10-29 | 1952-10-07 | Gen Aniline & Film Corp | Diazotype photoprinting material |
US2627088A (en) * | 1950-03-22 | 1953-02-03 | Du Pont | Preparation of oriented coated films |
US2805159A (en) * | 1953-03-02 | 1957-09-03 | Methods for the production of diazotype | |
US2875051A (en) * | 1954-05-03 | 1959-02-24 | Chemical Products Corp | Relief printing plates and method for fabricating the same |
US3027256A (en) * | 1957-11-22 | 1962-03-27 | Dietzgen Co Eugene | Production of light-sensitive diazotype materials |
NL267991A (en) * | 1960-08-10 | |||
NL285544A (en) * | 1962-11-15 | |||
US3466172A (en) * | 1967-01-13 | 1969-09-09 | Ibm | Method of using photographic vesicular and diazo films having diazo antihalation layers |
-
1973
- 1973-04-10 US US349727A patent/US3923518A/en not_active Expired - Lifetime
-
1974
- 1974-04-09 GB GB15661/74A patent/GB1442688A/en not_active Expired
- 1974-04-09 DE DE2417278A patent/DE2417278A1/en active Pending
- 1974-04-10 CA CA197,292A patent/CA1013992A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US3923518A (en) | 1975-12-02 |
DE2417278A1 (en) | 1974-11-07 |
CA1013992A (en) | 1977-07-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |