GB883557A - Improvements in or relating to methods of making hectographic copies - Google Patents
Improvements in or relating to methods of making hectographic copiesInfo
- Publication number
- GB883557A GB883557A GB11866/59A GB1186659A GB883557A GB 883557 A GB883557 A GB 883557A GB 11866/59 A GB11866/59 A GB 11866/59A GB 1186659 A GB1186659 A GB 1186659A GB 883557 A GB883557 A GB 883557A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- leuco
- parts
- water
- layer
- 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
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/26—Processing photosensitive materials; Apparatus therefor
- G03F7/30—Imagewise removal using liquid means
-
- 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
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S101/00—Printing
- Y10S101/36—Means for registering or alignment of print plates on print press structure
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Color Printing (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Printing Methods (AREA)
- Photosensitive Polymer And Photoresist Processing (AREA)
- Paper (AREA)
- Printing Plates And Materials Therefor (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
883,557. Hectographic transfer paper &c. RITZERFELD, W., and RITZERFELD, G. April 8, 1959 [April 19, 1958; Sept 24, 1958 (3); Nov. 6, 1958], No. 11866/59. Class 96. [Also in Group XVI] A method of making hectographic copies from a printing master sheet prepared photomechanically or by inscribing and having printing image areas which comprise a non- staining or only slightly staining leuco dye compound, comprises, prior to the printing process, converting the leuco compound into its alcohol or water-soluble heavily coloured dye salt by the action of an acid, subjecting it to an oxidization process before, with or after the acid treatment and duplicating on to copy sheets moistened with a neutral-reacting copying liquid forming a solvent for the dye salt. Leuco compounds of a triphenyl-methane dye may be used. On photo-mechanically prepared master sheets, the leuco compound and optionally the oxidation medium are contained in a gelatin layer containing a silver halide. An example of a developing liquid is: water 1000 c.c., pyrochatecol 15 gms., sodium sulphite 1.5 gms., potassium carbonate 60 gms., further diluted 1 to 3 in water. In the case of inscribed master sheets, parts of a layer of fat, waxes, leuco compound and oxidation medium is transferred by hand or typewriter pressure to the master sheet from a transfer sheet in contact therewith. The transfer layer may comprise leuco base of methyl violet 50 parts, barium peroxide, potassium dichromate or sodium peroxide 5 parts; petroleum jelly 35 parts; carnauba wax 10 parts. The leuco base of malachite green may be used. The acid, e.g. formic acid may be applied as a vapour, or as a liquid, such as a 20% aqueous solution of hydroxy carbolic acid (glycolic acid or lactic acid) with 4% of formic acid, a 50% solution of acetic acid with 4% of formic acid, a 5% solution of formic acid, or acid-reacting substances, such as saturated aqueous solution of substituted phenols, aromatic carboxyl acid or naphthols, e.g. p-nitrophenol, picric acid, salicylic acid, or α-nitronaphthol, to which substances may be added, e.g. formic acid, acetic acid, salicyclic acid, lactic acid, hydrochloric acid, phosphoric acid, nitric acid, sulphuric acid or glycolic acid; or as a solid, in a watersoluble binder in a colloid or methyl cellulose as a layer on a contact sheet, e.g. amino acid and manganese dioxide or lead dioxide suspended in gum arabic, polyvinyl alcohols or methyl cellulose, the oxidizing substance in this case being contained in the same layer. Otherwise the oxidizing substances may be applied in a bath, e.g. water 1,000 c.c., permanganate 30 gm., potassium dichromate 30 gm. ; oxidizing substances which avoid discolouring the master sheet are, e.g. benzoyl peroxide. The copying liquid is alcohol, water or a mixture thereof, to which a higher valency alcohol may be added to increase the dissolving power.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DER27510A DE1124978B (en) | 1960-03-09 | 1960-03-09 | Process for the production of hectographic prints |
DER27507A DE1124977B (en) | 1960-03-09 | 1960-03-09 | Process for the production of hectographic prints |
DER27691A DE1149022B (en) | 1960-03-09 | 1960-04-05 | Method and color sheet for making hectographic prints |
Publications (1)
Publication Number | Publication Date |
---|---|
GB883557A true GB883557A (en) | 1961-11-29 |
Family
ID=27212069
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB11866/59A Expired GB883557A (en) | 1960-03-09 | 1959-04-08 | Improvements in or relating to methods of making hectographic copies |
GB7655/61A Expired GB922506A (en) | 1960-03-09 | 1961-03-02 | Improvements in or relating to method of making hectographic printing master sheets |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7655/61A Expired GB922506A (en) | 1960-03-09 | 1961-03-02 | Improvements in or relating to method of making hectographic printing master sheets |
Country Status (5)
Country | Link |
---|---|
US (1) | US3096711A (en) |
BE (2) | BE577586A (en) |
DE (10) | DE1116970B (en) |
FR (3) | FR1228458A (en) |
GB (2) | GB883557A (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL244134A (en) * | 1955-05-11 | |||
BE597054A (en) * | 1959-12-11 | |||
US3310403A (en) * | 1962-12-26 | 1967-03-21 | Minnesota Mining & Mfg | Process of making an intaglio plate using an image transfer film |
NL134367C (en) * | 1965-07-06 | |||
US3518038A (en) * | 1965-10-20 | 1970-06-30 | Allied Chem | Electrographic recording mixture containing a morpholinyl diphenyl methane and 2 triphenyl methane |
US11732543B2 (en) | 2020-08-25 | 2023-08-22 | Schlumberger Technology Corporation | Rotating control device systems and methods |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US976417A (en) * | 1910-06-21 | 1910-11-22 | Farbenfab Vorm Bayer F & Co | Dye. |
US1661568A (en) * | 1926-02-09 | 1928-03-06 | William F Keohan | Biological stains, bacteriocidal agents and the like, and methods of preparing the same |
GB451190A (en) * | 1934-07-23 | 1936-07-31 | Geza Szasz | An improved method of preparing duplicate copies of originals |
US2040075A (en) * | 1935-01-24 | 1936-05-12 | Ditto Inc | Transfer process |
US2146976A (en) * | 1937-02-23 | 1939-02-14 | George G Neidich | Method of making duplicate copies |
US2555603A (en) * | 1946-12-20 | 1951-06-05 | Allied Chem & Dye Corp | Amino-cyclohexylcyclohexane salts of dyestuff acids |
NL94963C (en) * | 1952-05-13 | |||
US2755200A (en) * | 1953-12-28 | 1956-07-17 | Du Pont | Stabilized coloring compositions and methods of making and using same |
NL244134A (en) * | 1955-05-11 | |||
US2935938A (en) * | 1956-04-17 | 1960-05-10 | Eugene Lefebure | Methods of copy reproduction |
-
1958
- 1958-04-19 DE DER23178A patent/DE1116970B/en active Pending
- 1958-04-19 DE DER23177A patent/DE1102776B/en active Pending
- 1958-05-20 DE DER23380A patent/DE1112090B/en active Pending
- 1958-09-24 DE DER24093A patent/DE1125451B/en active Pending
- 1958-09-24 DE DER24092A patent/DE1125450B/en active Pending
- 1958-11-06 DE DER24344A patent/DE1107252B/en active Pending
-
1959
- 1959-04-08 GB GB11866/59A patent/GB883557A/en not_active Expired
- 1959-04-10 BE BE577586D patent/BE577586A/xx unknown
- 1959-04-14 US US806382A patent/US3096711A/en not_active Expired - Lifetime
- 1959-04-17 FR FR792352A patent/FR1228458A/en not_active Expired
- 1959-04-17 FR FR792351A patent/FR1220612A/en not_active Expired
- 1959-11-20 DE DER26760A patent/DE1125452B/en active Pending
-
1960
- 1960-03-09 DE DER27510A patent/DE1124978B/en active Pending
- 1960-03-09 DE DER27507A patent/DE1124977B/en active Pending
- 1960-04-05 DE DER27691A patent/DE1149022B/en active Pending
-
1961
- 1961-02-08 FR FR852017A patent/FR79192E/en not_active Expired
- 1961-02-27 BE BE600682D patent/BE600682A/xx unknown
- 1961-03-02 GB GB7655/61A patent/GB922506A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE1107252B (en) | 1961-05-25 |
DE1124978B (en) | 1962-03-08 |
DE1124977B (en) | 1962-03-08 |
DE1149022B (en) | 1963-05-22 |
DE1102776B (en) | 1961-03-23 |
DE1116970B (en) | 1961-11-09 |
US3096711A (en) | 1963-07-09 |
BE600682A (en) | 1961-03-15 |
FR79192E (en) | 1962-11-03 |
FR1228458A (en) | 1960-08-31 |
BE577586A (en) | 1959-04-30 |
GB922506A (en) | 1963-04-03 |
DE1125451B (en) | 1962-03-15 |
FR1220612A (en) | 1960-05-25 |
DE1125450B (en) | 1962-03-15 |
DE1112090B (en) | 1961-08-03 |
DE1125452B (en) | 1962-03-15 |
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