US967793A - Sensitive safety-print and process. - Google Patents
Sensitive safety-print and process. Download PDFInfo
- Publication number
- US967793A US967793A US52856509A US1909528565A US967793A US 967793 A US967793 A US 967793A US 52856509 A US52856509 A US 52856509A US 1909528565 A US1909528565 A US 1909528565A US 967793 A US967793 A US 967793A
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- US
- United States
- Prior art keywords
- ink
- sensitive
- parts
- substance
- 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 - Lifetime
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Classifications
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- 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
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/40—Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
- D21H21/44—Latent security elements, i.e. detectable or becoming apparent only by use of special verification or tampering devices or methods
- D21H21/46—Elements suited for chemical verification or impeding chemical tampering, e.g. by use of eradicators
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- 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.]
- Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
- Y10T428/24835—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including developable image or soluble portion in coating or impregnation [e.g., safety paper, etc.]
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- 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.]
- Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
- Y10T428/24934—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including paper layer
Definitions
- This invention relates to the manufacture of sensitive safety prints such as are intended to be used for checks, letters of credit, bank notes, postage stamps, revenue stamps, bonds, stock certificates, and the like security papers.
- a water soluble sensitive color direct dyeing-cotton col0rs,basic colors, etc
- an insoluble sensitive color or color lake A colorless sensitive substance, soluble or insoluble, sensitive to dilute reagents, e. 9., phenolphthaleine, etc., may be added to the color, or colors, used; or it may be employed by itself, 6 e. in this case we would obtain a colorless sensitive ink.
- ink vehicle containing, as principal ingredient, a coagulable substance, e. g., albumen, casein, gelatin, or like substance.
- Figure 1 represents a check which is made according to my invention, being printed with my special sensitive ink.
- Figure 2 represents a check which is made according to my invention, being printed with my special sensitive ink.
- (C) represents a removable glass door through which can be seen the check v(D) being subjected to steam vapor.
- gum tragacanth or gum trion paper which consists in taking a soluble
- a safety print formed of a suitable carrier having thereon an ink base, a coagulable substance and a chemically sensitive waterinsoluble substance incorporated in said ink base.
- a sensitive safety print comprising a paper body adapted to receive writing ink pr nted with a coagulable printing ink embodying therein, as principal ingredients, a coagulable substance and chemically sensitive color pigments varying in quantity, to prevent the removal of writing ink without destroying, or changing the color, of said color pigments.
Landscapes
- Inks, Pencil-Leads, Or Crayons (AREA)
Description
H. W.'F. LORENZ. SENSITIVE S ETY PRINT AND PROCESS. APPLICATION FILED NOV. 17, 1909.
Patented Aug. 16; 1910.
Maw/M HENRY W. F. LORENZ, OF JERSEY CITY, NEW JERSEY.
SENSITIVE SAFETY-PRINT AND PROCESS.
. Specification of Letters iatent.
Patented Aug. 16, 1910.
Applicationflled November 17, 1909. Serial No. 528,565.
T 0 all whom it mag concern:
Be it known that I, HENRY W. F. LORENZ, a citizen of the United States, and a resident of the city of Jersey City, in the county of Hudson and State of New Jersey, have invented a new and Improved Sensitive Safety-Print and Process, of which the following is a clear, full, and exact description.
This invention relates to the manufacture of sensitive safety prints such as are intended to be used for checks, letters of credit, bank notes, postage stamps, revenue stamps, bonds, stock certificates, and the like security papers.
In my application No. 490,386 I have disclosed a sensitive safety print and process for making the same. The chief characteristic in the cited application is that a soluble, chemically sensitive, coloring matter in the finished print is converted into a waterinsoluble coloring matter. Furthermore, I have disclosed also the fact that, in the case of a printing ink for engraved plates, an ink base like blanc fixe, sublimed lead, etc., should preferably be present to give the ink proper working qualities.
In the present application I disclose and claim a sensitive safety print and process in which, first, an insoluble as well as a soluble sensitive coloring matter can be fixed firmly and insolubly upon the paper surface in the finished print. Secondly, larger quantities of an ink base, like blanc fixe, lime carbonate.
(paris white), etc. can be used. This also is a desideratum in many cases.
In carrying out my invention I make use of the following substances, or proper combinations of the same. A water soluble sensitive color (direct dyeing-cotton col0rs,basic colors, etc), or an insoluble sensitive color or color lake. (A colorless sensitive substance, soluble or insoluble, sensitive to dilute reagents, e. 9., phenolphthaleine, etc., may be added to the color, or colors, used; or it may be employed by itself, 6 e. in this case we would obtain a colorless sensitive ink.) An ink base, or ink bases, like blanc fixe, etc, lime carbonate, starch or other substance suitable for a like purpose. ink vehicle containing, as principal ingredient, a coagulable substance, e. g., albumen, casein, gelatin, or like substance.
Reference is to be had to the accompanyspecification.
Figure 1 represents a check which is made according to my invention, being printed with my special sensitive ink. Fig. 2
r steaming box, into which steam enters at (B) and passes out at (A). (C) represents a removable glass door through which can be seen the check v(D) being subjected to steam vapor.
To carry out my invention I may proceed in several Ways, depending principally upon the nature of the coagulable substance employed in the ink. For instance when using albumen, I prefer to proceed as follows:
Albumen vehicle, parts of egg albumen with 20 parts of water. Let stand, stirring occasionally, until a homogeneous-mass is obtained. To 25 parts of the latter add 20 parts of glycerin and stir until the same is mixed thoroughly. This varnish can be thinned with more glycerin, if desired.
Examples of various inks containing this vehicle:
S 81 Take mimosa Y. C. (Geigy) C, H,,N
25 parts and dissolve 1n glycer 1n, 56 parts. Add to this mixture paris white, parts. Bring the resultant pasty mass upon the ink mill and grind thoroughly. Now add albumen varnish, 90 parts. Pass repeatedly through the mill, thinning with glycerin until about 48 parts of the latter have been used, when the ink will be found to havethe right consistency for printing. Make a print gradually bleached.
ing drawings which form a part of this ZZho'ws a simple form of closed receptacle,
.90 and expose tosteam vapor. Color of print: yellow. Reactions: solutions (4) Invisible ink. Phenolphthaleine, 20 parts; albumen varnish, 25 parts. Reactions: solutions of alkalies: red.
- (5) Congo red, 10. (C H N O S Na paris white, 80; albumen varnish, 90; glycerin, 80; .color: red. Reactions: solutions ofoxalic acid: blue; alkalies: red-brown, soluble; bleaching powder: red, slowly bleached.
It will be noted that instead of the albumen varnish similar varnishes of a coagu-' lable nature can be used; for instance a casein varnishz casein dissolved in a borax solution with addition of glycerin; or a gelatin varnish can be employed: gelatin dissolved in water with addition of glycerin. The gelatin contained in an ink made with this vehicle can be coagulated by exposing the print to steam vapor containing formaldehyde vapors.
For a plate ink it is advisable to add a percentage of gum tragacanth or gum trion paper, which consists in taking a soluble,
chemically sensitive coloring matter capable of being converted into a water insoluble body, adding a water soluble vehicle contaming a coagulable substance as principalingredient, printing therewith and exposing the print to steam Vapor.
2. The process of making a sensitive print on paper which consists in taking a soluble, chemically sensitive coloring matter capable of being converted into a water insoluble body, addin an inert base and a water soluble vehic e containing a coagulable subprinting to steam 4. The-process of making a sensitive print on paper which consists in taking a chemically sensitive, insoluble, coloring matter, adding a water soluble vehicle containing a coagulable substance as principal ingredient, and an inert ink base, and exposing the print to steam vapor.
5. The process of printing" on paper with a chemically sensitive ink containing a coagulable substance as one of the ingredients, and fixing the ink on the paper by coagulating said coagulable substance.
6. As a new article of manufacture, a safety print formed of a suitable carrier having thereon an ink base, a coagulable substance and a chemically sensitive waterinsoluble substance incorporated in said ink base.
7. A sensitive safety print comprising a paper body adapted to receive writing ink pr nted with a coagulable printing ink embodying therein, as principal ingredients, a coagulable substance and chemically sensitive color pigments varying in quantity, to prevent the removal of writing ink without destroying, or changing the color, of said color pigments.
In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.
HENRY W. F. LORENZ.
Witnesses:
W INNEs, MARIE LORENZ.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US52856509A US967793A (en) | 1909-11-17 | 1909-11-17 | Sensitive safety-print and process. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US52856509A US967793A (en) | 1909-11-17 | 1909-11-17 | Sensitive safety-print and process. |
Publications (1)
Publication Number | Publication Date |
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US967793A true US967793A (en) | 1910-08-16 |
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ID=3036184
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US52856509A Expired - Lifetime US967793A (en) | 1909-11-17 | 1909-11-17 | Sensitive safety-print and process. |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2445586A (en) * | 1943-01-14 | 1948-07-20 | George La Monte & Son | Moisture-sensitive paper and the manufacture thereof |
-
1909
- 1909-11-17 US US52856509A patent/US967793A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2445586A (en) * | 1943-01-14 | 1948-07-20 | George La Monte & Son | Moisture-sensitive paper and the manufacture thereof |
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