Claims
- 1. An ink for an ink-jet printer which comprises
- (a) 100 parts by weight of dichloromethane as an organic solvent, and
- (b) 0.2 part by weight or more of a basic dye as a coloring agent,
- said ink having a specific resistance of 1 k.OMEGA.-cm or less, whereby said ink is adapted for use in an ink-jet printer.
- 2. An ink for an ink-jet printer which comprises
- (a) 100 parts by weight of dichloromethane as an organic solvent, p1 (b) 0.2 part by weight or more of a basic dye as a coloring agent, and
- (c) 10 parts by weight or less but a sufficient amount for securing the adhesion of the coloring agent to the surface to be printed of a solid component selected from the group consisting of resins and rubbers,
- said ink having a specific resistance of 1 k.OMEGA.-cm or less, whereby said ink is adapted for use in an ink-jet printer.
- 3. An ink for an ink-jet printer which comprises
- (a) a total of 100 parts by weight of dichloromethane and at least one member selected from the group consisting of halogenated lower alkanes except for dichloromethane and halogenated lower alkenes, the proportion of dichloromethane in the mixed solvent being 20% by weight or more, as an organic solvent, and
- (b) 0.2 part by weight or more of a basic dye as a coloring agent,
- said ink having a specific resistance of 1 k.OMEGA.-cm or less, whereby said ink is adapted for use in an ink-jet printer.
- 4. An ink for an ink-jet printer which comprises
- (a) 100 parts by weight of dichloromethane and at least one member selected from the group consisting of halogenated lower alkanes except for dichloromethane and halogenated lower alkenes, the proportion of dichloromethane in the mixed solvent being 20% by weight or more, as an organic solvent,
- (b) 0.2 part by weight or more of a basic dye as a coloring agent, and
- (c) 10 parts by weight or less but a sufficient amount for securing the adhesion of the coloring agent to the surface to be printed of a solid component selected from the group consisting of resins and rubbers,
- said ink having a specific resistance of 1 k.OMEGA.-cm or less, whereby said ink is adapted for use in an ink-jet printer.
- 5. An ink according to claim 3 or 4, wherein the proportion of dichloromethane in the mixed solvent being 30-60% by weight.
- 6. An ink according to claim 1 or 2, wherein the basic dye is used in an amount of 0.5-6 parts by weight per 100 parts by weight of the organic solvent.
- 7. An ink according to claim 6, wherein the basic dye is used in an amount of 1-2 parts by weight per 100 parts by weight of the organic solvent.
- 8. An ink according to claim 3 or 4, wherein the halogenated lower alkanes except for dichloromethane and the halogenated lower alkenes are trichlorofluoromethane, 1,1,1-trichloroethane, 1,1,2-trichloro-1,2,2-trifluoroethane, 1,1,2,2-tetrachloro-1,2-difluoroethane, trichloethylene, tetrachloroethylene and .alpha.-bromopropane.
- 9. An ink according to claim 1 or 2, wherein the basic dye is Rhodamine B (C.I. 45170), Malachite Green (C.I. 42000), Methylene Blue (C.I. 52015), Crystal Violet (C.I. 42555), Acridine Orange (C.I. 46005), Bismarck Brown R (C.I. 21010), Methyl Violet (C.I. 42535), Aniline Blue (C.I. 42775), Aizen Methyl Violet pure special (C.I. 42535) or Rhodamine 6G (C.I. 45160).
- 10. An ink for an ink-jet printer which comprises
- (a) 100 parts by weight of dichloromethane as an organic solvent, and
- (b) a total of 0.2 part by weight or more of a basic dye and at least one member selected from the group consisting of oil-soluble dyes and organic pigments, the proportion of the basic dye in the mixture being 20-95% by weight, as a coloring agent,
- said ink having a specific resistance of 1 k.OMEGA.-cm or less, whereby said ink is adapted for use in an ink-jet printer.
- 11. An ink for an ink-jet printer which comprises
- (a) 100 parts by weight of dichloromethane as an organic solvent,
- (b) a total of 0.2 part by weight or more of a basic dye and at least one member selected from the group consisting of oil-soluble dyes and organic pigments, the proportion of the basic dye in the mixture being 20-95% by weight, as a coloring agent, and
- (c) 10 parts by weight or less but a sufficient amount for securing the adhesion of the coloring agent to the surface to be printed of a solid component selected from the group consisting of resins and rubbers,
- said ink having a specific resistance of 1 k.OMEGA.-cm or less, whereby said ink is adapted for use in an ink-jet printer.
- 12. An ink according to claim 10 or 11, wherein the oil-soluble dye is Sudan I (C.I. 12055), oil Red (C.I. 12140), Biebrich Scarlet (C.I. 26105), Oil Brown B (C.I. 12010), Induline (C.I. 50400), Oil Brown BB (C.I. 12020), Solvent Green 4 (C.I. 45550), Solvent Blue 35 (C.I. 61554), Solvent Blue 70 (C.I. 74400), or Solvent Red 122 (C.I. 12716).
- 13. An ink according to claim 10 or 11, wherein the organic pigment is Heliogen Blue 7080 (C.I. 70460), Fanal Blue PTM 6340 (C.I. 42595), or Fanal Blue PTM 6390 (C.I. 42595).
- 14. An ink according to claim 2, wherein the solid component is used in an amount of 0.5 to 6 parts by weight per 100 parts by weight of the organic solvent.
- 15. An ink according to claim 2, wherein the resins and rubbers are selected from the group consisting of epoxy resins, phenol resins, xylene resins, ketone resins, alkyd resins, rosin resins, terpene resins, or modified resins thereof, homopolymers and copolymers of styrene, acrylate, vinyl chloride and vinyl acetate, polyvinyl acetals, polyesters, polyamides, cellulose derivatives, natural rubber, polybutadiene rubbers, polyisoprene rubbers, chloroprene rubbers and isobutylene-isoprene rubbers, and mixtures of at least two thereof.
- 16. An ink for an ink-jet printer which comprises
- (a) a total of 100 parts by weight of dichloromethane and at least one member selected from the group consisting of halogenated lower alkanes except for dichloromethane and halogenated lower alkenes, the proportion of dichloromethane in the mixed solvent being 20% by weight or more, as an organic solvent, and
- (b) a total of 0.2 part by weight or more of a basic dye and at least one member selected from the group consisting of oil-soluble dyes and organic pigments, the proportion of the basic dye in the mixture being 20-95% by weight, as a coloring agent,
- said ink having a specific resistance of 1 k.OMEGA.-cm or less, whereby said ink is adapted for use in an ink-jet printer.
- 17. An ink for an ink-jet printer which comprises
- (a) a total of 100 parts by weight of dichloromethane and at least one member selected from the group consisting of halogenated lower alkanes except for dichloromethane and halogenated lower alkenes, the proportion of dichloromethane in the mixed solvent being 20% by weight or more, as an organic solvent,
- (b) a total of 0.2 parts by weight or more of a basic dye and at least one member selected from the group consisting of oil-soluble dyes and organic pigments, the proportion of the basic dye in the mixture being 20-95% by weight, as a coloring agent, and
- (c) 10 parts by weight or less but a sufficient amount for securing the adhesion of the coloring agent to the surface to be printed of a solid component selected from the group consisting of resins and rubbers,
- said ink having a specific resistance of 1 k.OMEGA.-cm or less, whereby said ink is adapted for use in an ink-jet printer.
- 18. An ink according to claim 1, 2, 3, 4, 10, 11, 16 or 17, wherein the ink has a viscosity of 5 centipoises or less at room temperature.
- 19. An ink according to claim 18, wherein the ink has a surface tension of 25 dyne/cm or more.
- 20. In a method for printing a substrate with an ink jetted in a continuous flow of fine particles from an orifice by the action of a vibrator operated magnetically or electrically, said flow of particles being controlled by a video signal from an electronic character generator and an electrostatic deflection system, the improvement which comprises employing an ink which is anhydrous and comprises dichloromethane as an organic solvent, and a basic dye in an amount of at least 0.2 part by weight per 100 parts by weight of the organic solvent as a coloring agent, said ink having a specific resistance of 1 k.OMEGA.-cm or less, a viscosity of 5 centipoises or less at room temperature, and a surface tension of 25 dyne/cm or more.
- 21. In a method for printing a substrate with an ink jetted in a continuous flow of fine particles from an orifice by the action of a vibrator operated magnetically or electrically, said flow of particles being controlled by a video signal from an electronic character generator and an electrostatic deflection system, the improvement which comprises employing an ink which is anhydrous and comprises dichloromethane and at least one member selected from the group consisting of halogenated lower alkanes except for dichloromethane and halogenated lower alkenes, the proportion of dichloromethane in the mixed solvent being 20% by weight or more, as an organic solvent, and a basic dye in an amount of at least 0.2 part by weight per 100 parts by weight of the organic solvent as a coloring agent, said ink having a specific resistance of 1 k.OMEGA.-cm or less, a viscosity of 5 centipoises or less at room temperature, and a surface tension of 25 dyne/cm or more.
- 22. In a method for printing a substrate with an ink jetted in a continuous flow of fine particles from an orifice by the action of a vibrator operated magnetically or electrically, said flow of particles being controlled by a video signal from an electronic character generator and an electrostatic deflection system, the improvement which comprises employing an ink which is anhydrous and comprises dichloromethane as an organic solvent; and a basic dye and at least one member selected from the group consisting of oil-soluble dyes and organic pigments, the proportion of basic dye in the mixture being 20-95% by weight, in a total amount of at least 0.2 part by weight per 100 parts by weight of the organic solvent, as a coloring agent, said ink having a specific resistance of 1 k.OMEGA.-cm or less, a viscosity of 5 centipoises or less at room temperature, and a surface tension of 35 dyne/cm or more.
- 23. A method according to claim 14, 21 or 22 wherein the ink further comprises a solid component selected from the group consisting of resins and rubbers in an amount of 10 parts by weight or less per 100 parts by weight of the organic solvent but a sufficient amount for securing the adhesion of the coloring agent to the surface to be printed.
Priority Claims (1)
Number |
Date |
Country |
Kind |
51/93988 |
Aug 1976 |
JPX |
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CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a continuation-in-part of Application Ser. No. 822,263 filed Aug. 5, 1977 and now abandoned.
US Referenced Citations (10)
Foreign Referenced Citations (2)
Number |
Date |
Country |
1206534 |
Sep 1970 |
GBX |
444800 |
May 1975 |
SUX |
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
822263 |
Aug 1977 |
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