GB1325554A - Paper - Google Patents
PaperInfo
- Publication number
- GB1325554A GB1325554A GB4362470A GB4362470A GB1325554A GB 1325554 A GB1325554 A GB 1325554A GB 4362470 A GB4362470 A GB 4362470A GB 4362470 A GB4362470 A GB 4362470A GB 1325554 A GB1325554 A GB 1325554A
- Authority
- GB
- United Kingdom
- Prior art keywords
- particles
- paper
- titanium pigment
- colourant
- pigment particles
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Paper (AREA)
Abstract
1325554 Opaque paper SCHOELLER TECHNICAL PAPERS Inc 11 Sept 1970 [11 Sept 1969 29 June 1970] 43624/70 Heading D2B [Also in Divisions B2 and G2] A gray opaque paper for use in the production of positive print papers for diffusion transfer photographic processes comprises a fibrous sheet containing uniformly distributed therein titanium pigment particles, a light absorbing colourant, and colloidal particles in an amount of between 1.5 and 15% by wt. of the titanium pigment particles, The latter may be TiO 2 or fibrous potassium titanate particles. The light absorbing colourant may be colloidal carbon black or Nigrosine WSB. The colloidal particles may comprise a hydrous magnesium silicate or a hydrous aluminium oxide. The paper may be prepared by adding the titanium pigment particles, colourant, and colloidal particles to the fibrous suspension before the latter is wet-laid to form paper. A titanium pigment extender, e.g. a sodium alumino silicate, and a dispersing agent, e.g. sodium hexametaphosphate, may be added together with the titanium pigment particles. A cationic starch, rosin size and alum may also be added to the pulp suspension. The finished paper may be tub-sized with an oxidised starch.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US85723769A | 1969-09-11 | 1969-09-11 | |
| US5099970A | 1970-06-29 | 1970-06-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1325554A true GB1325554A (en) | 1973-08-01 |
Family
ID=26728941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4362470A Expired GB1325554A (en) | 1969-09-11 | 1970-09-11 | Paper |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS4911564B1 (en) |
| BE (1) | BE755534A (en) |
| DE (1) | DE2044780C3 (en) |
| FR (1) | FR2060662A5 (en) |
| GB (1) | GB1325554A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4312937A (en) * | 1980-04-11 | 1982-01-26 | Schoeller Technical Papers, Inc. | Photographic negative base for self-developing film packs |
| EP0253560B1 (en) * | 1986-07-08 | 1991-07-03 | Mita Industrial Co. Ltd. | An electrophotographic copying method and insulating paper for use therein |
-
0
- BE BE755534D patent/BE755534A/en not_active IP Right Cessation
-
1970
- 1970-08-21 FR FR7030708A patent/FR2060662A5/fr not_active Expired
- 1970-09-10 DE DE19702044780 patent/DE2044780C3/en not_active Expired
- 1970-09-11 JP JP7993770A patent/JPS4911564B1/ja active Pending
- 1970-09-11 GB GB4362470A patent/GB1325554A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2044780B2 (en) | 1978-06-15 |
| BE755534A (en) | 1971-02-01 |
| DE2044780C3 (en) | 1979-02-22 |
| JPS4911564B1 (en) | 1974-03-18 |
| DE2044780A1 (en) | 1971-03-18 |
| FR2060662A5 (en) | 1971-06-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PE20 | Patent expired after termination of 20 years |