CH490972A - Form and carbon copy typeset using color reaction papers - Google Patents
Form and carbon copy typeset using color reaction papersInfo
- Publication number
- CH490972A CH490972A CH870769A CH870769A CH490972A CH 490972 A CH490972 A CH 490972A CH 870769 A CH870769 A CH 870769A CH 870769 A CH870769 A CH 870769A CH 490972 A CH490972 A CH 490972A
- Authority
- CH
- Switzerland
- Prior art keywords
- typeset
- color reaction
- carbon copy
- reaction papers
- papers
- Prior art date
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
- B41M5/124—Duplicating or marking methods; Sheet materials for use therein using pressure to make a masked colour visible, e.g. to make a coloured support visible, to create an opaque or transparent pattern, or to form colour by uniting colour-forming components
-
- 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
- B41M5/124—Duplicating or marking methods; Sheet materials for use therein using pressure to make a masked colour visible, e.g. to make a coloured support visible, to create an opaque or transparent pattern, or to form colour by uniting colour-forming components
- B41M5/132—Chemical colour-forming components; Additives or binders therefor
- B41M5/136—Organic colour formers, e.g. leuco dyes
- B41M5/15—Spiro-pyrans
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Color Printing (AREA)
- Paints Or Removers (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19681761678 DE1761678A1 (en) | 1968-06-22 | 1968-06-22 | Writing set made of color icon papers |
NL6910550A NL6910550A (en) | 1968-06-22 | 1969-07-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH490972A true CH490972A (en) | 1970-05-31 |
Family
ID=25755281
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH870769A CH490972A (en) | 1968-06-22 | 1969-06-09 | Form and carbon copy typeset using color reaction papers |
Country Status (7)
Country | Link |
---|---|
BE (1) | BE724978A (en) |
CH (1) | CH490972A (en) |
DE (1) | DE1761678A1 (en) |
FR (1) | FR1593459A (en) |
GB (1) | GB1210996A (en) |
LU (1) | LU57270A1 (en) |
NL (1) | NL6910550A (en) |
-
1968
- 1968-06-22 DE DE19681761678 patent/DE1761678A1/en active Pending
- 1968-11-07 LU LU57270D patent/LU57270A1/xx unknown
- 1968-11-27 FR FR1593459D patent/FR1593459A/fr not_active Expired
- 1968-12-05 BE BE724978D patent/BE724978A/xx unknown
-
1969
- 1969-06-06 GB GB2873869A patent/GB1210996A/en not_active Expired
- 1969-06-09 CH CH870769A patent/CH490972A/en not_active IP Right Cessation
- 1969-07-09 NL NL6910550A patent/NL6910550A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
GB1210996A (en) | 1970-11-04 |
LU57270A1 (en) | 1970-05-13 |
DE1761678A1 (en) | 1971-08-05 |
FR1593459A (en) | 1970-05-25 |
BE724978A (en) | 1969-06-05 |
NL6910550A (en) | 1971-01-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |