US3105769A - Solution for reconditioning typewriter ribbons and the like and methods of reconditioning such ribbons - Google Patents
Solution for reconditioning typewriter ribbons and the like and methods of reconditioning such ribbons Download PDFInfo
- Publication number
- US3105769A US3105769A US62882A US6288260A US3105769A US 3105769 A US3105769 A US 3105769A US 62882 A US62882 A US 62882A US 6288260 A US6288260 A US 6288260A US 3105769 A US3105769 A US 3105769A
- Authority
- US
- United States
- Prior art keywords
- ribbon
- solution
- reconditioning
- ribbons
- oil
- 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
Links
- 238000000034 method Methods 0.000 title description 11
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims description 15
- 239000003921 oil Substances 0.000 claims description 13
- 238000004040 coloring Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 11
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims description 9
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims description 9
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims description 9
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 9
- 239000005642 Oleic acid Substances 0.000 claims description 9
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims description 9
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims description 9
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims description 9
- 239000002480 mineral oil Substances 0.000 claims description 8
- 235000010446 mineral oil Nutrition 0.000 claims description 8
- ALSTYHKOOCGGFT-KTKRTIGZSA-N (9Z)-octadecen-1-ol Chemical compound CCCCCCCC\C=C/CCCCCCCCO ALSTYHKOOCGGFT-KTKRTIGZSA-N 0.000 claims description 7
- 239000004163 Spermaceti wax Substances 0.000 claims description 7
- 229940055577 oleyl alcohol Drugs 0.000 claims description 7
- XMLQWXUVTXCDDL-UHFFFAOYSA-N oleyl alcohol Natural products CCCCCCC=CCCCCCCCCCCO XMLQWXUVTXCDDL-UHFFFAOYSA-N 0.000 claims description 7
- 229920001296 polysiloxane Polymers 0.000 claims description 7
- 235000019385 spermaceti wax Nutrition 0.000 claims description 7
- 239000004264 Petrolatum Substances 0.000 claims description 6
- 230000000873 masking effect Effects 0.000 claims description 6
- 229940066842 petrolatum Drugs 0.000 claims description 6
- 235000019271 petrolatum Nutrition 0.000 claims description 6
- UOCLXMDMGBRAIB-UHFFFAOYSA-N 1,1,1-trichloroethane Chemical compound CC(Cl)(Cl)Cl UOCLXMDMGBRAIB-UHFFFAOYSA-N 0.000 claims description 3
- 229960003504 silicones Drugs 0.000 claims description 2
- 239000000049 pigment Substances 0.000 description 17
- 235000019198 oils Nutrition 0.000 description 12
- 239000000976 ink Substances 0.000 description 10
- 239000004615 ingredient Substances 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 6
- 239000003981 vehicle Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 239000007787 solid Substances 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 3
- 230000002745 absorbent Effects 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 235000021313 oleic acid Nutrition 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- -1 silk Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000001993 wax Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000010775 animal oil Substances 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000004359 castor oil Substances 0.000 description 1
- 235000019438 castor oil Nutrition 0.000 description 1
- 239000002285 corn oil Substances 0.000 description 1
- 235000005687 corn oil Nutrition 0.000 description 1
- 235000012343 cottonseed oil Nutrition 0.000 description 1
- 239000002385 cottonseed oil Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000010699 lard oil Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000010697 neat foot oil Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229940060184 oil ingredients Drugs 0.000 description 1
- ADIMAYPTOBDMTL-UHFFFAOYSA-N oxazepam Chemical compound C12=CC(Cl)=CC=C2NC(=O)C(O)N=C1C1=CC=CC=C1 ADIMAYPTOBDMTL-UHFFFAOYSA-N 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J31/00—Ink ribbons; Renovating or testing ink ribbons
- B41J31/14—Renovating or testing ink ribbons
Definitions
- Typewriter ribbons and the like are usually made of ribbons or strips of cotton, silk, nylon or other plastics, or combinations of these, which have been impregnated with special inks, which inks usually consist of a pigment vehicle or body and a pigment or coloring material.
- the vehicle or body usually consists of a vegetable oil, mineral oil, animal oil, solid or liquid wax, or a combination of two or more of these, and the pigment or coloring material is usually carbon black, a dye, or other color base of very fine particle consistency, the pigment being usually ground into the vehicle or body to provide the mixture which forms the ink.
- the typewriter ribbon is struck or pressed by a solid or metallic letter of the typewriter which causes the ribbon to strike or press against the material, such as paper, which is being typed upon, leaving an inked impression on such material.
- the solid or metallic letters pound or press the ink out of portions of the ribbon, leaving such portions dc-inked.
- the impressions become dull and uneven, difiicult to read, or otherwise unsatisfactory. Consequently, 'as the ink is pounded or pressed out of the ribbon, the ribbon becomes useless, and is usually discarded.
- any used typewriter ribbon From observation or" any used typewriter ribbon, it is known that not all of the ink has been pounded or struck out of the ribbon, but only from those parts which were struck or pressed by the solid or metallic letters or type of the typewriter.
- I utilize what I term a liquid carrier, which will perform these functions quickly and uniformly, and then evaporate or volatilize completely and immediately, so that it will not continue to dilute the old body, new body, and pigment, not interfere with their properties, individually or as a whole.
- one or more fast evaporating or volatilizing agents selected from the group consisting of:
- ingredients selected from the group consisting of:
- a minute quantity of a coloring material as well as a minute quantity of an odor masking material, may be added to the solution.
- the solution will contain "from about to about 90% by volume of the carrier, and from about 10 to about 20% by volume of new body, with about of carrier and about 15% of new body, as optimum or preferred proportions.
- the carrier agents are mixed together in the desired proportions, and the spermaceti wax (when used) is dissolved in this mixture.
- the new body ingredients or agents, along with any desired coloring matter and/ or odor masking material, are mixed together and set aside for about thirty minutes and then thoroughly shaken or agitated to insure proper blending.
- the carrier and new body are then mixed or blended by shaking or agitating, thereby forming the finished solution.
- a preferred example of the solution will contain the following 7 ingredients
- Carrier Parts by volume Hexane 20 1,l,1trichloreth-ane 30 Methylene chloride 34 Oleic acid 6 Methylated sperm oil 3 Mineral oil (light) 2 Oleyl alcohol 2 Body:
- Oleic acid andrn'ethylated sperm oil promote prolonged self-healing of the ribbon, that is to say, in addition to the carrier, these tend to draw, by promoting capillary action, the pigment and old and new body mixture to the de-inked portions of the used ribbon, both before and after the carrier has evaporated or volat-ilized.
- Methylated sperm oil also acts to promote drying of the ink on the paper or substance which is being typed upon.
- the silicones impart abrasion-resisting qualities to the used ribbon and thus prolong the life of the ribbon.
- the solution may be used in several ways to recondition a used typewriter ribbon.
- the ribbon while still wound on its spool or core, is dipped or immersed in the solution for about 5 seconds, then swiftly withdrawn and placed on a dry, absorbent surface, such as a blotter, absorbent paper, towel, or newspaper, where it is permitted to remain for an hour or longer, preferably overnight, in order to permit the carrier to completely evaporate or become volatilized, after which the treated ribbon is ready for use.
- a dry, absorbent surface such as a blotter, absorbent paper, towel, or newspaper
- the ribbon while still wound on its spool or core, is dipped or immersed in the solution for about 5 seconds, then swiftly withdrawn,
- the ribbon can then be rewound on its spool or core and is ready for use.
- a solution for reconditioning typewriter ribbons and the like said solution containing hexane, 1,1,1-trichlorethane, methylene chloride, oleic acid, methylated sperm oil, mineral oil (light), oleyl alcohol, silicones, sperma-ceti wax, petrolatum, coloring matter and odor masking material.
- the method of reconditioning used typewriter ribbons and the like comprising the steps of immersing the used ribbon while still wound on its spool or core, for about 5 seconds in a reconditioning solution consisting of a carrier part and a body part, said carrier part containing *a fast evaporating agent, and said body part including oleic acid and methylated sperm oil to promote capillary action within the ribbon withdrawing the ribbon thus treated from said solution, and permitting the evaporating agent to become evaporated from the ribbon.
Landscapes
- Inks, Pencil-Leads, Or Crayons (AREA)
Description
United States Patent This invention relates, as indicated, to a solution for reconditioning typewriter ribbons and the like and to methods of reconditioning such ribbons.
Typewriter ribbons and the like are usually made of ribbons or strips of cotton, silk, nylon or other plastics, or combinations of these, which have been impregnated with special inks, which inks usually consist of a pigment vehicle or body and a pigment or coloring material. The vehicle or body usually consists of a vegetable oil, mineral oil, animal oil, solid or liquid wax, or a combination of two or more of these, and the pigment or coloring material is usually carbon black, a dye, or other color base of very fine particle consistency, the pigment being usually ground into the vehicle or body to provide the mixture which forms the ink.
In use, the typewriter ribbon is struck or pressed by a solid or metallic letter of the typewriter which causes the ribbon to strike or press against the material, such as paper, which is being typed upon, leaving an inked impression on such material.
As the ribbon is used, the solid or metallic letters pound or press the ink out of portions of the ribbon, leaving such portions dc-inked. As these portions of the rib bon are repeatedly struck, the impressions become dull and uneven, difiicult to read, or otherwise unsatisfactory. Consequently, 'as the ink is pounded or pressed out of the ribbon, the ribbon becomes useless, and is usually discarded.
If it is desired to recondition or renew the used ribbon, and make it useful again, it becomes necessary to replace the ink which has been thus depleted.
From observation or" any used typewriter ribbon, it is known that not all of the ink has been pounded or struck out of the ribbon, but only from those parts which were struck or pressed by the solid or metallic letters or type of the typewriter.
Experiments have shown that there is usually enough pigment or coloring matter left in the used ribbon, so that if this pigment or coloring matter is properly redistributed throughout the ribbon, that is to say, put back into the de-inked portions of the ribbon, and new vehicle or body added to replace the vehicle or body lost, that a ribbon thus reconditioned can be used satisfactorily again, for a prolonged period.
For the purpose of accomplishing this redistribution of pigment or coloring matter and vehicle or body, I have developed a solution which consists of a number of ingredients, and which solution, when introduced into the used ribbon, in a manner to be presently described, acts (a) To soften the pigment and old body which remains in the used ribbon,
(b) To loosen the pigment and hold body in the used ribbon,
(c) To add new body to the used ribbon and cause the dispersion of this new body, the old body, and the pigment into each other, whereby the three become a homogeneous mass, forming a new ink for the ribbon, and
(d) To promote capillary action, which acts to carry or draw the aforesaid homogeneous mass or new ink into the dc-inked portions of the ribbon, as well as into all other parts of the used ribbon.
"ice
In order to soften the pigment and old body which remains in the used ribbon, loosen this pigment and body, cause the dispersion of the new body, old body and pig ment into each other, and to promote the capillary action which has been described, I utilize what I term a liquid carrier, which will perform these functions quickly and uniformly, and then evaporate or volatilize completely and immediately, so that it will not continue to dilute the old body, new body, and pigment, not interfere with their properties, individually or as a whole.
As a carrier, I have found it desirable to use one or more fast evaporating or volatilizing agents, selected from the group consisting of:
Hexane l, 1, l-trichlorethane Methylene chloride Carbon tetrachloride Trichlorethylene Benzol Heptane Ethylene dichloride Propylene dichloride Freeon 113 (l,l,Z-trichloro-1,2,2-trifiuoroethane) Naptha; Ietroleum No. 1
Of the aforesaid group, I prefer to use a combination of the first three which are listed.
In order to add new body to the pigment and old body, I utilize, as a part of the aforesaid solution, one or more ingredients selected from the group consisting of:
Oleyl alcohol Petrolatum Mineral oil Silicones Oleic acid Castor oil Aerated sperm oil Methylated sperm oil Spermaceti wax Lard oil Lard Neats-foot oil Petroleum oil Corn oil Cottonseed oil Of the aforesaid group of new body ingredients or agents, I prefer to use a combination of methylated sperm oil, oleyl alcohol, spermaceti wax, mineral oil, oleic acid, and silicones.
If and when desired, a minute quantity of a coloring material, as well as a minute quantity of an odor masking material, may be added to the solution.
For practical purposes, the solution will contain "from about to about 90% by volume of the carrier, and from about 10 to about 20% by volume of new body, with about of carrier and about 15% of new body, as optimum or preferred proportions.
In preparing the solution, the carrier agents are mixed together in the desired proportions, and the spermaceti wax (when used) is dissolved in this mixture. The new body ingredients or agents, along with any desired coloring matter and/ or odor masking material, are mixed together and set aside for about thirty minutes and then thoroughly shaken or agitated to insure proper blending. The carrier and new body are then mixed or blended by shaking or agitating, thereby forming the finished solution.
A preferred example of the solution will contain the following 7 ingredients Carrier: Parts by volume Hexane 20 1,l,1trichloreth-ane 30 Methylene chloride 34 Oleic acid 6 Methylated sperm oil 3 Mineral oil (light) 2 Oleyl alcohol 2 Body:
Silicones 1 Spermaceti wax /2 Petrolatum 1 Coloring matter A Odor masking material Total 100 The new body ingredients have one or more functions, as follows:
(a) Oleic acid, spermaceti wax, petrolatum, and methylated sperm oil add substance or body to the imprint.
(b) Mineral oil maintains the body soft for proper imprinting.
(c) Oleic acid andrn'ethylated sperm oil promote prolonged self-healing of the ribbon, that is to say, in addition to the carrier, these tend to draw, by promoting capillary action, the pigment and old and new body mixture to the de-inked portions of the used ribbon, both before and after the carrier has evaporated or volat-ilized.
(d) Methylated sperm oil also acts to promote drying of the ink on the paper or substance which is being typed upon.
(e) The silicones impart abrasion-resisting qualities to the used ribbon and thus prolong the life of the ribbon.
(f) Oleyl alcohol, methylated sperm oil and mineral I oil, cause the new body, the pigment and the old body to blend and become a homogeneous mass or mixture.
The solution, as thus described, may be used in several ways to recondition a used typewriter ribbon.
In one method, the ribbon, while still wound on its spool or core, is dipped or immersed in the solution for about 5 seconds, then swiftly withdrawn and placed on a dry, absorbent surface, such as a blotter, absorbent paper, towel, or newspaper, where it is permitted to remain for an hour or longer, preferably overnight, in order to permit the carrier to completely evaporate or become volatilized, after which the treated ribbon is ready for use.
In another method, which is quicker than the first method, and is the best method, the ribbon, while still wound on its spool or core, is dipped or immersed in the solution for about 5 seconds, then swiftly withdrawn,
and the carrier permitted to evaporate, as in the first method, :but for only 15 minutes, after which the ribbon is unwound from its spool or core and is spilled over onto paper spread on the floor or other flat surface, and
any unevaporated carrier thus permitted to evaporate,
this being usually completed in about 15 minutes. The ribbon can then be rewound on its spool or core and is ready for use.
It is to be understood that various changes may be made in the proportions of ingredients which have been described, in the method of formulation of the solution, and in the methods of utilizing the solution, without departing from the spirit of the invention, or the scope of the appended claims.
Having thus described my invention, I claim:
1. A solution for reconditioning typewriter ribbons and the like, said solution containing hexane, 1,1,1-trichlorethane, methylene chloride, oleic acid, methylated sperm oil, mineral oil (light), oleyl alcohol, silicones, sperma-ceti wax, petrolatum, coloring matter and odor masking material.
2. A solution, as defined in claim 1, in which the named ingredients are present in the following approximate proportions by volume:
20 parts Hexane 30 parts 1,1,1-trichloroethane 6 parts Oleic acid 3 parts Methylated sperm oil 2 parts Mineral oil (light) 2 parts Oleyl alcohol 1 part Silicones /2 part Sperrnacet-i wax 1 part Petrolatum 122 part Coloring matter part Odor masking material 3. The method of reconditioning used typewriter ribbons and the like, said method comprising the steps of immersing the used ribbon while still wound on its spool or core, for about 5 seconds in a reconditioning solution consisting of a carrier part and a body part, said carrier part containing *a fast evaporating agent, and said body part including oleic acid and methylated sperm oil to promote capillary action within the ribbon withdrawing the ribbon thus treated from said solution, and permitting the evaporating agent to become evaporated from the ribbon.
References Cited in the file of this patent UNITED STATES PATENTS 895,248 Gallagher Aug. 4, 1908 2,155,653 Graf Apr. 25, 1939 2,344,671 Bertsch Mar. 21, 1944 2,644,766 Levine July 7., 1953
Claims (1)
1. A SOLUTION FOR RECONDITIONING TYPEWRITER RIBBONS AND THE LIKE, SAID SOLUTION CONTAINING HEXANE, 1,1,1-TRICHLORETHANE, METHYLENE CHLORIDE, OLEIC ACID, METHYLATED SPERM OIL, MINERAL OIL (LIGHT), OLEYL ALCOHOL, SILICONES, SPERMACETI WAX, PETROLATUM, COLORING MATTER AND ODOR MASKING MATERIAL.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US62882A US3105769A (en) | 1960-10-17 | 1960-10-17 | Solution for reconditioning typewriter ribbons and the like and methods of reconditioning such ribbons |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US62882A US3105769A (en) | 1960-10-17 | 1960-10-17 | Solution for reconditioning typewriter ribbons and the like and methods of reconditioning such ribbons |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3105769A true US3105769A (en) | 1963-10-01 |
Family
ID=22045457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US62882A Expired - Lifetime US3105769A (en) | 1960-10-17 | 1960-10-17 | Solution for reconditioning typewriter ribbons and the like and methods of reconditioning such ribbons |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US3105769A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3265518A (en) * | 1963-12-30 | 1966-08-09 | Ibm | Method for intensifying images to be read by optical readers |
| US3511708A (en) * | 1966-10-18 | 1970-05-12 | Us Navy | Method for displacing liquid organic films from solid surfaces |
| US3768968A (en) * | 1970-01-20 | 1973-10-30 | Hoechst Ag | Polyester dye with dye in methylene chloride and a chlorofluoroalkane |
| US4092456A (en) * | 1973-05-14 | 1978-05-30 | Columbia Ribbon & Carbon Mfg. Co., Inc. | Transfer elements and process |
| US4161551A (en) * | 1977-03-24 | 1979-07-17 | Eaton Allen Corp. | Adhesively correctable transfer medium with delayed alteration resistance characteristics |
| US4239832A (en) * | 1978-11-30 | 1980-12-16 | Eaton Allen Corp. | Adhesively correctable transfer medium with delayed alteration resistance characteristics |
| US4260664A (en) * | 1978-11-27 | 1981-04-07 | Columbia Ribbon & Carbon Mfg. Co., Inc. | Transfer elements and process |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US895248A (en) * | 1907-08-13 | 1908-08-04 | James R Gallagher | Renewing process for printing-ribbons. |
| US2155653A (en) * | 1935-12-10 | 1939-04-25 | Graf Hugo | Method for freshing-up ink ribbons |
| US2344671A (en) * | 1928-08-18 | 1944-03-21 | American Hyalsol Corp | Higher molecular alcohols |
| US2644766A (en) * | 1950-08-05 | 1953-07-07 | Bessie S Levine | Composition for reconditioning used typewriter ribbons |
-
1960
- 1960-10-17 US US62882A patent/US3105769A/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US895248A (en) * | 1907-08-13 | 1908-08-04 | James R Gallagher | Renewing process for printing-ribbons. |
| US2344671A (en) * | 1928-08-18 | 1944-03-21 | American Hyalsol Corp | Higher molecular alcohols |
| US2155653A (en) * | 1935-12-10 | 1939-04-25 | Graf Hugo | Method for freshing-up ink ribbons |
| US2644766A (en) * | 1950-08-05 | 1953-07-07 | Bessie S Levine | Composition for reconditioning used typewriter ribbons |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3265518A (en) * | 1963-12-30 | 1966-08-09 | Ibm | Method for intensifying images to be read by optical readers |
| US3511708A (en) * | 1966-10-18 | 1970-05-12 | Us Navy | Method for displacing liquid organic films from solid surfaces |
| US3768968A (en) * | 1970-01-20 | 1973-10-30 | Hoechst Ag | Polyester dye with dye in methylene chloride and a chlorofluoroalkane |
| US4092456A (en) * | 1973-05-14 | 1978-05-30 | Columbia Ribbon & Carbon Mfg. Co., Inc. | Transfer elements and process |
| US4161551A (en) * | 1977-03-24 | 1979-07-17 | Eaton Allen Corp. | Adhesively correctable transfer medium with delayed alteration resistance characteristics |
| US4260664A (en) * | 1978-11-27 | 1981-04-07 | Columbia Ribbon & Carbon Mfg. Co., Inc. | Transfer elements and process |
| US4239832A (en) * | 1978-11-30 | 1980-12-16 | Eaton Allen Corp. | Adhesively correctable transfer medium with delayed alteration resistance characteristics |
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