GB434852A - Improvements in typewriter paper of deferred indelibility and method of preparing the same - Google Patents
Improvements in typewriter paper of deferred indelibility and method of preparing the sameInfo
- Publication number
- GB434852A GB434852A GB25905/34A GB2590534A GB434852A GB 434852 A GB434852 A GB 434852A GB 25905/34 A GB25905/34 A GB 25905/34A GB 2590534 A GB2590534 A GB 2590534A GB 434852 A GB434852 A GB 434852A
- Authority
- GB
- United Kingdom
- Prior art keywords
- paper
- coating
- typewriter
- sept
- typewriting
- 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
-
- 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
- D21H19/10—Coatings without pigments
-
- 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
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
- Y10T428/24521—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness with component conforming to contour of nonplanar surface
- Y10T428/24529—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness with component conforming to contour of nonplanar surface and conforming component on an opposite nonplanar surface
-
- 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
- Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
- Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
Landscapes
- Paper (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
- Color Printing (AREA)
Abstract
434,852. Typewriting paper. CALLAN, J. G., 24, Quincy Street, Cambridge, Massachusetts, U.S.A. Sept. 8, 1934, No. 25905. Convention date, Sept. 23, 1933. [Class 96] Paper 2 for typewriting use, has a surface coating 1 of uniform thickness of 1-2 tenths of a mil, following the irregularities of the paper surface and formed of material, e.g. casein, tanned glue, starch, &c., permeable to typewriter ink only after some time during which the typescript may readily be erased without using abrasive erasers, but after which the impression is relatively indelible. The coating is fragile enough to develop slight discontinuities on impact by the typewriter key. The coating is hardened with formaldehyde &c. and may contain sulphonated castor oil or soap, the latter ingredients may also occur in the typewriter ink. The paper may have had the usual rosin sizing at the beater, and the coating material may be applied cold, e.g. by a coating machine having a roller feed and rotary brushes. Initial drying is preferably effected at or below room temperature, e.g. the paper " floating " on a series of upwardly directed streams of air emerging from a blower-trunk of rectangular section. In an example, to make a coating composition, 1¢ lbs. of casein per gallon of water is soaked 1-2 hours, cooked, and cut with borax or ammonia, left 12 hours at room temperature, diluted with 20 gallons of water to 15 of solution, and 2 quarts of 50 per cent formaldehyde and colour and china clay are added.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US690742A US1994750A (en) | 1933-09-23 | 1933-09-23 | Typewriter paper of deferred indelibility and method of preparing the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB434852A true GB434852A (en) | 1935-09-10 |
Family
ID=24773765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB25905/34A Expired GB434852A (en) | 1933-09-23 | 1934-09-08 | Improvements in typewriter paper of deferred indelibility and method of preparing the same |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1994750A (en) |
| DE (1) | DE637103C (en) |
| FR (1) | FR778513A (en) |
| GB (1) | GB434852A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2676119A (en) * | 1953-03-13 | 1954-04-20 | Brightwater Paper Company | Method of coating paper |
| GB819537A (en) * | 1956-10-24 | 1959-09-02 | Leslie Clarence Nicoll | Improvements in stereotype printing matrices and methods of making the same |
| US3193403A (en) * | 1961-11-28 | 1965-07-06 | Budd Co | Method of drying paper to produce a cockle finish |
-
1933
- 1933-09-23 US US690742A patent/US1994750A/en not_active Expired - Lifetime
-
1934
- 1934-09-08 GB GB25905/34A patent/GB434852A/en not_active Expired
- 1934-09-15 FR FR778513D patent/FR778513A/en not_active Expired
- 1934-09-23 DE DEC49662D patent/DE637103C/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR778513A (en) | 1935-03-18 |
| US1994750A (en) | 1935-03-19 |
| DE637103C (en) | 1936-10-23 |
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