GB891474A - Improvements in and relating to hectographic paper - Google Patents
Improvements in and relating to hectographic paperInfo
- Publication number
- GB891474A GB891474A GB2745358A GB2745358A GB891474A GB 891474 A GB891474 A GB 891474A GB 2745358 A GB2745358 A GB 2745358A GB 2745358 A GB2745358 A GB 2745358A GB 891474 A GB891474 A GB 891474A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hectographic
- copy paper
- paper
- duplicating
- hydroxymethane
- 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
-
- 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
- B41M5/025—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet
- B41M5/0253—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet using a chemical colour-forming ink, e.g. chemical hectography
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Color Printing (AREA)
Abstract
891,474. Paper, hectographic; spirit duplicating. WAGNER VERWALTLTNGSGESELLSCHAFT, GUNTHER. Aug. 27, 1958 [Sept. 5, 1957], No. 27453/58. Class 96. Hectographic master-copy paper for spirit duplicating has a coating giving a colour reaction on copy paper with an acidic medium, the coating consisting of a non-acidic wax containing a cyclic di-substitution product of hydroxymethane, or an ether thereof, as the colour-reactant. An example specifies 40 parts of bis (4 - dimethyl - aminophenyl) hydroxymethane and 30-50 of carnauba wax, cetyl alcohol, or paraffin wax with some petroleum jelly, melted and spread or rolled on. The acid reactant may be in the copy paper or in the duplicating fluid.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE27453 | 1957-09-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB891474A true GB891474A (en) | 1962-03-14 |
Family
ID=5620673
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2745358A Expired GB891474A (en) | 1957-09-05 | 1958-08-27 | Improvements in and relating to hectographic paper |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB891474A (en) |
-
1958
- 1958-08-27 GB GB2745358A patent/GB891474A/en not_active Expired
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