US3102045A - Production of patterns on cloth or similar substances - Google Patents

Production of patterns on cloth or similar substances Download PDF

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Publication number
US3102045A
US3102045A US744588A US74458858A US3102045A US 3102045 A US3102045 A US 3102045A US 744588 A US744588 A US 744588A US 74458858 A US74458858 A US 74458858A US 3102045 A US3102045 A US 3102045A
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Prior art keywords
cloth
developer
control member
pattern
patterns
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US744588A
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Metcalfe Kenneth Archibald
Wright Robert John
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Priority claimed from AU29072/57A external-priority patent/AU228522B2/en
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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G7/00—Selection of materials for use in image-receiving members, i.e. for reversal by physical contact; Manufacture thereof
    • G03G7/0093—Image-receiving members, based on materials other than paper or plastic sheets, e.g. textiles, metals
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B11/00—Treatment of selected parts of textile materials, e.g. partial dyeing
    • D06B11/0056—Treatment of selected parts of textile materials, e.g. partial dyeing of fabrics
    • D06B11/0066—Treatment of selected parts of textile materials, e.g. partial dyeing of fabrics by spaced contacts with a member carrying a single treating material
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/22—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20
    • G03G15/24—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 whereby at least two steps are performed simultaneously
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
    • G03G5/02—Charge-receiving layers
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G7/00—Selection of materials for use in image-receiving members, i.e. for reversal by physical contact; Manufacture thereof
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/12—Developers with toner particles in liquid developer mixtures
    • 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
    • Y10S101/37—Printing employing electrostatic force

Definitions

  • Printing of patterns on cloth is usually effected by either running thecloth beneath printing rollers inked in any normal manner or byweaving in threads which have been pre-printed and which rwillthen give therequired pattern when woven.
  • the present invention relates to the production of patterns on cloth or the like which has already been proposed, but instead of printing bymeans of dyes in the normal manner, the pattern is, according to our invention, produced on the cloth by electrostatic printing.
  • the method of producing the printed patterns according to this invention comprises applying an electrostatic pattern by means of'a photoconductor surface to a cloth or similar substance and applying liquid developer to the cloth or similar substances as it is incontact withthe electrostatic pattern, whereby the developer which forms the coloring medium will be deposited 'on; the cloth in accordance with the electrostatic pattern on the control member.
  • the device for producing the printed patterns on the cloth or similar substances comprises a control member having a photo-conductor surface on it and means to press the cloth into contact with the said photoconductor surface, and means to apply developer at the area of contact.
  • FIG. 1 shows schematically how the pattern can be applied by using a control member which has the electrostatic pattern thereon, the control member with the cloth thereon being submerged beneath the developer,
  • FIG. 2 shows how the developer may be applied to the cloth by a roller carrying the'developer
  • FIG. 3 shows acontinuous process in which a control member having a photo-conductor surface controls the pattern on the cloth as the cloth passes over a developer roller.
  • a developer dish 1 has in it the developer solution 2 which consists of a pigment or dye which is to form the coloring medium for the cloth or the like suspended in a liquid of high electrical resistivity.
  • a control member 3 which may comprise a plate or the like having a photo-conductor surface 4 on it such as a zinc oxide set in a suitable bonding resin.
  • the photo-conductor surface 4 has a pattern on it which can be produced in any conventional manner such as by charging the photo-conductor material and then bleeding away the charge by projecting a light pattern onto the surface, the cloth 5 being placed on the photoconductor surface 4 of the control member 3 prior to submerging of the control member into the developer solution.
  • the developer 2 can be poured into the dish 1 after the control member 3 and the cloth 5 have I been located in the dish.
  • control member such as by using zinc oxide, although a-positive is shown in the illustration.
  • the developer will of course have such a proportion of carrier liquid to pigment that discoloration of the cloth will not take place undersirably.
  • the ingredients are milled together for eight hours in a ball mill.
  • the paste is used as the basis for a dispersion in a liquid of high volume resistivity.
  • An example of the method of dispersion is as follows: stir a small portion of the paste into the required liquid, such as n-pentane or carbon tetrachloride, and strain to remove portions :of paste that have not completely dispersed.
  • the required liquid such as n-pentane or carbon tetrachloride
  • strain to remove portions :of paste that have not completely dispersed For fine grained developers filter before use through filter paper and use filtrate as a developer.
  • the concentration of the dispersion may be varied at will, a typical concentration of 'a preferred dispersion being a suspension of 0.5 gram developer paste in mil of liquid.
  • the cloth 5 is shown in position on the control member 3 but the developer is being applied by means of a roller 8 having an absorbent cover 9 which carries the developer, the princi ple of operation being the same as with reference to FIG. 1 in that as the roller carries the developer over the cloth 5, the developer is accepted at the areas 7 but is rejected at the other areas due to the fact that the developer particles or the dye have an inherent charge which can cause deposition only at the areas on the cloth where the control member gives the opposite polarity.
  • FIG. 3 shows a system somewhat similar to that of FIG. 2 but of a continuous type.-
  • the dish 1 has in it the developer 2 and mounted to dip into the developer 2 is a roller 8 having a surface 9 which is ⁇ wetted by the developer, the rollers being free to revolve about its spindle 10.
  • control member 3 consists of a roller '11 having a photo-conductor 12 on its surface, the roller contacting the cloth at the point of its contact with the developer roller.
  • the control member 3 has its charge pattern regulated by a drum 13 which revolves around a shield 14 having a slit 15 in it adjacent a light source 16 so that as the drum 13 which carries the negative or other pattern-producing member is revolved, the pattern is projected by the light source 116 through the slit 15 onto thephoto-conductor face of the roller 11 to modify the charge pattern on it, a corona discharge device 17 being of course used to charge the photo-conductor surface prior to the charges being modified by the light beam from the source 16.
  • the method of producing printed patterns on cloth comprising applying an electrostatic pattern to a photo conductor surface on a control member, placing one side of the cloth on to the control member so that the electrostatic pattern extends through the cloth, applying liquid developer directly to the other side of the cloth as it is subjected to the electrostatic pattern of the control member, and subsequently removing the cloth from the control member.
  • the method of producing printed patterns on cloth comprising applying an electrostatic pattern to a photo conductor surface on a control member, placing one side of the cloth on to the control member so that the electrostatic pattern extends through the cloth, applying liquid developer directly to the other side of the cloth by rolling it on as the cloth is subjected to the electrostatic pattern of the control member, and subsequently removing the cloth from the control member.
  • the method of producing printed patterns on cloth comprising applying an elastrostatic pattern to a photo conductor surface on a control drum, and feeding a web of cloth between the said drum and a developer roller carrying a liquid developer so that one side of the cloth is in contact with the control drum and the electrostatic pattern extends through the cloth, and whereby the liquid developer is applied directly to the other side of the cloth as it is subjected to the electrostatic pattern of the control drum.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Liquid Developers In Electrophotography (AREA)
  • Wet Developing In Electrophotography (AREA)

Description

1963 K. A. METCALFE ETAL 3,102,045
PRODUCTION OF PATTERNS ON CLOTH OR SIMILAR SUBSTANCES Filed June 25, 1958 United States Patent This invention relates totheproductionof patterns on cloth or similar substances such ascanvas or the like.
Printing of patterns on cloth is usually effected by either running thecloth beneath printing rollers inked in any normal manner or byweaving in threads which have been pre-printed and which rwillthen give therequired pattern when woven.
The present invention relates to the production of patterns on cloth or the like which has already been proposed, but instead of printing bymeans of dyes in the normal manner, the pattern is, according to our invention, produced on the cloth by electrostatic printing.
' The method of producing the printed patterns according to this invention comprises applying an electrostatic pattern by means of'a photoconductor surface to a cloth or similar substance and applying liquid developer to the cloth or similar substances as it is incontact withthe electrostatic pattern, whereby the developer which forms the coloring medium will be deposited 'on; the cloth in accordance with the electrostatic pattern on the control member. Y 7
The device for producing the printed patterns on the cloth or similar substances comprises a control member having a photo-conductor surface on it and means to press the cloth into contact with the said photoconductor surface, and means to apply developer at the area of contact.
To enable the invention to be fully understood embodiments thereof will now be described with reference to the accompanying drawings in which:
FIG. 1 shows schematically how the pattern can be applied by using a control member which has the electrostatic pattern thereon, the control member with the cloth thereon being submerged beneath the developer,
FIG. 2 shows how the developer may be applied to the cloth by a roller carrying the'developer, and
FIG. 3 shows acontinuous process in which a control member having a photo-conductor surface controls the pattern on the cloth as the cloth passes over a developer roller.
Referring first to FIG. 1, a developer dish 1 has in it the developer solution 2 which consists of a pigment or dye which is to form the coloring medium for the cloth or the like suspended in a liquid of high electrical resistivity. Into this dish is placed a control member 3 which may comprise a plate or the like having a photo-conductor surface 4 on it such as a zinc oxide set in a suitable bonding resin. The photo-conductor surface 4 has a pattern on it which can be produced in any conventional manner such as by charging the photo-conductor material and then bleeding away the charge by projecting a light pattern onto the surface, the cloth 5 being placed on the photoconductor surface 4 of the control member 3 prior to submerging of the control member into the developer solution. Alternatively, the developer 2 can be poured into the dish 1 after the control member 3 and the cloth 5 have I been located in the dish.
It is normally desirable to contact the cloth with the developer only when it is in contact with the control member as this insures that the dye or pigment of the developer 2 is deposited only in predetermined areas,
the charge on the control member being so selected 3,102,045 Patented Aug. 27, 1963 ice that there is the necessary gradient which will insure that the pigment particles or the dye will flow as indicated, for example, by the arrows 6 in FIG. 1. Those areas where no deposition is to take place will be denuded of the pigment or dye by the dew which takes place to the charge areas 7'which attract the dyeor pigment to such areas.
Instead. of using a negative developer a positive developer could be used, in which case the movement of the particles or dye will be in a direction opposite to that shown in FIG. 1. l
It will be obvious that a negative charge could be used on the control member, such as by using zinc oxide, although a-positive is shown in the illustration.
The developer will of course have such a proportion of carrier liquid to pigment that discoloration of the cloth will not take place undersirably.
An example of a positively charged developer paste is as follows:
Grams Pentar-ol 20" l5 Rhodene L6/ 100 15 Xylene 25 Phthalocyauine blue 'l5() The Pentarol 20 is digested in xylene and when solution is complete the Rhodene L6/ 100 is added. The phthalocyanine blue is then rnixed with the resins and blended either in a ball mill or triple roll mill until mixing is complete and pigment particle size isreduced to the required fineness, such as 0.5 micro, average. For most purposes eight hours milling in a ball mill should be found suflicient. An example of a negatively charged developer paste is as follows:
Grams Boiled linseed oil 25 Lead chromatecn' Drier, lead n aphthenate 0.5
The ingredients are milled together for eight hours in a ball mill.
Inboth cases, the paste is used as the basis for a dispersion in a liquid of high volume resistivity. An example of the method of dispersion is as follows: stir a small portion of the paste into the required liquid, such as n-pentane or carbon tetrachloride, and strain to remove portions :of paste that have not completely dispersed. For fine grained developers filter before use through filter paper and use filtrate as a developer. The concentration of the dispersion may be varied at will, a typical concentration of 'a preferred dispersion being a suspension of 0.5 gram developer paste in mil of liquid.
In the embodiment shown in FIG. 2 the cloth 5 is shown in position on the control member 3 but the developer is being applied by means of a roller 8 having an absorbent cover 9 which carries the developer, the princi ple of operation being the same as with reference to FIG. 1 in that as the roller carries the developer over the cloth 5, the developer is accepted at the areas 7 but is rejected at the other areas due to the fact that the developer particles or the dye have an inherent charge which can cause deposition only at the areas on the cloth where the control member gives the opposite polarity.
FIG. 3 shows a system somewhat similar to that of FIG. 2 but of a continuous type.-
In FIG. 3 the dish 1 has in it the developer 2 and mounted to dip into the developer 2 is a roller 8 having a surface 9 which is \wetted by the developer, the rollers being free to revolve about its spindle 10.
The cloth 5' is fed over this roller and is in contact with the surface which is wet with developer, but in this case the control member 3 consists of a roller '11 having a photo-conductor 12 on its surface, the roller contacting the cloth at the point of its contact with the developer roller.
The control member 3 has its charge pattern regulated by a drum 13 which revolves around a shield 14 having a slit 15 in it adjacent a light source 16 so that as the drum 13 which carries the negative or other pattern-producing member is revolved, the pattern is projected by the light source 116 through the slit 15 onto thephoto-conductor face of the roller 11 to modify the charge pattern on it, a corona discharge device 17 being of course used to charge the photo-conductor surface prior to the charges being modified by the light beam from the source 16.
In this way as the cloth passes around the photoconductor surface 12 on the control member 3', the image -is developed by contact with the surface 9 of the developer roller 8.
By this invention, direct pattern deposition on to cloth can thus take place without the cloth itself having to be provided with a photo-conductor surface.
In the claims the expression cloth is to be understood as including similar substances. 5
What is claimed is:
1. The method of producing printed patterns on cloth comprising applying an electrostatic pattern to a photo conductor surface on a control member, placing one side of the cloth on to the control member so that the electrostatic pattern extends through the cloth, applying liquid developer directly to the other side of the cloth as it is subjected to the electrostatic pattern of the control member, and subsequently removing the cloth from the control member.
2. The method of producing printed patterns on cloth comprising applying an electrostatic pattern to a photo conductor surface on a control member, placing one side of the cloth on to the control member so that the electrostatic pattern extends through the cloth, applying liquid developer directly to the other side of the cloth by rolling it on as the cloth is subjected to the electrostatic pattern of the control member, and subsequently removing the cloth from the control member.
3. The method of producing printed patterns on cloth comprising applying an elastrostatic pattern to a photo conductor surface on a control drum, and feeding a web of cloth between the said drum and a developer roller carrying a liquid developer so that one side of the cloth is in contact with the control drum and the electrostatic pattern extends through the cloth, and whereby the liquid developer is applied directly to the other side of the cloth as it is subjected to the electrostatic pattern of the control drum.
References Cited in the file of this patent UNITED STATES PATENTS 1,818,760 Selenyi Aug. 11, 1931 2,053,494 Pirie et al. Sept. 8, 1936 2,143,376 Hansell Jan. 10, 1939 2,297,691 Carlson Oct. 6, 1942 2,520,504 Hooper Aug. 29, 1950 2,633,796 Pethick Apr. 7, 1953 2,693,416 Butterfield Nov. 2, 1954 2,811,465 Grieg Oct. 29, 1957 2,869,461 Jarvis Jan. 20, 1959 2,877,133 Mayer t Mar. 10, 1959 2,898,279 Metcalfe Aug. 4, 1959 FOREIGN PATENTS 755,486
Great Britain Aug. 22, 1956

Claims (1)

1. THE METHOD OF PRODUCING PRINTED PATTERNS ON CLOTH COMPRISING APPLYING AN ELECTROSTATIC PATTERN TO A PHOTO CONDUCTOR SURFACE ON A CONTROL MEMBER, PLACING ONE SIDE OF THE CLOTH ON THE CONTROL MEMBER SO THAT THE ELECTROSTATIC PATTERN EXTENDS THROUGH THE CLOTH, APPLYING LIQUID DEVELOPERDIRECTLY TO THE OTHER PATTERN OF THE CONTROL MEMSUBJECTED TO THE ELECTROSTATTIC PATTERN OF THE CONTROL MEMBER, AND SUBSEQUENTLY REMOVING THE CLOTH FROM THE CONTROL MEMBER.
US744588A 1957-06-28 1958-06-25 Production of patterns on cloth or similar substances Expired - Lifetime US3102045A (en)

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Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3247825A (en) * 1963-04-23 1966-04-26 Ibm Wet diaphragm electrostatic printer
US3285741A (en) * 1961-04-19 1966-11-15 Agfa Gevaert Nv Process for developing electrostatic latent images
US3322048A (en) * 1958-09-23 1967-05-30 Harris Intertype Corp Electrophotography
US3343956A (en) * 1961-09-29 1967-09-26 Rca Corp Electrostatic printing process wherein development is achieved by sequenctial application of carrier liquid and developer particles
US3363555A (en) * 1966-03-28 1968-01-16 Rca Corp Electrostatic method of making multiple copies of an image
US3368526A (en) * 1965-12-01 1968-02-13 Tokyo Shibaura Electric Co Apparatus for developing electrostatic latent images by liquid developing system
US3383209A (en) * 1960-11-08 1968-05-14 Gevaert Photo Prod Nv Electrophotographic process including selective wetting by the developer liquid
US3411937A (en) * 1965-03-01 1968-11-19 Interchem Corp Method of liquid electrostatic developing
US3411936A (en) * 1965-03-01 1968-11-19 Interchem Corp Developing electrostatic images with a liquid developer containing tetraphenyl tin or zirconyl 2-ethylhexoate
US3419411A (en) * 1963-09-06 1968-12-31 Australia Res Lab Method for the transfer of developed electrostatic images using a lattice forming substance
US3420151A (en) * 1965-11-16 1969-01-07 Fairchild Camera Instr Co Apparatus for electrophotographic printing
US3462286A (en) * 1963-07-16 1969-08-19 Gevaert Photo Prod Nv Method of coating webs with photographic emulsions or other liquid compositions utilizing an electric field
US3472676A (en) * 1965-11-18 1969-10-14 Gevaert Photo Prod Nv Process for developing electrostatic charge patterns
US3486922A (en) * 1967-05-29 1969-12-30 Agfa Gevaert Nv Development of electrostatic patterns with aqueous conductive developing liquid
US3517993A (en) * 1965-10-23 1970-06-30 Bell & Howell Co Development apparatus for continuous rotary electrostatographic apparatus
US3561356A (en) * 1967-02-24 1971-02-09 Continental Can Co Precharging of substrate for electrostatic printing
US3744896A (en) * 1967-12-14 1973-07-10 Xerox Corp Imaging system
US3753706A (en) * 1969-10-29 1973-08-21 Xerox Corp A photoelectrosolographic imaging method wherein an absorbent material is used
US3891434A (en) * 1972-12-08 1975-06-24 Herbert Taege Porous material in a liquid development method
US3928669A (en) * 1972-12-12 1975-12-23 Fuji Photo Film Co Ltd Image-forming method
US4023967A (en) * 1973-09-07 1977-05-17 Xerox Corporation Electrophotographic liquid development method in which a uniform substantial interface contact is maintained

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1818760A (en) * 1928-02-01 1931-08-11 Egyesuelt Izzolampa Process and apparatus for drawing electrical pictures
US2053494A (en) * 1934-02-10 1936-09-08 Raymakers Syndicate Ltd Process and apparatus for surfacing sheet material with pigments, varnishes, lacquers, waterproofing solutions or the like
US2143376A (en) * 1935-01-02 1939-01-10 Rca Corp Recording system
US2297691A (en) * 1939-04-04 1942-10-06 Chester F Carlson Electrophotography
US2520504A (en) * 1944-11-22 1950-08-29 William C Huebner Electric printing
US2633796A (en) * 1944-04-05 1953-04-07 Hoe & Co R Printing means using electric fields
US2693416A (en) * 1950-05-19 1954-11-02 Western Electric Co Method of electrostatic electrophotography
GB755486A (en) * 1953-09-15 1956-08-22 Horizons Inc Improvements in electrostatic printing
US2811465A (en) * 1952-04-30 1957-10-29 Rca Corp Electrostatic printing
US2869461A (en) * 1956-02-27 1959-01-20 Eastman Kodak Co Electroprinting from a raised resist pattern
US2877133A (en) * 1956-10-22 1959-03-10 Gen Dynamics Corp Electrostatic photography
US2898279A (en) * 1956-06-14 1959-08-04 Commw Of Australia Coating surfaces by employing an electrostatic field

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1818760A (en) * 1928-02-01 1931-08-11 Egyesuelt Izzolampa Process and apparatus for drawing electrical pictures
US2053494A (en) * 1934-02-10 1936-09-08 Raymakers Syndicate Ltd Process and apparatus for surfacing sheet material with pigments, varnishes, lacquers, waterproofing solutions or the like
US2143376A (en) * 1935-01-02 1939-01-10 Rca Corp Recording system
US2297691A (en) * 1939-04-04 1942-10-06 Chester F Carlson Electrophotography
US2633796A (en) * 1944-04-05 1953-04-07 Hoe & Co R Printing means using electric fields
US2520504A (en) * 1944-11-22 1950-08-29 William C Huebner Electric printing
US2693416A (en) * 1950-05-19 1954-11-02 Western Electric Co Method of electrostatic electrophotography
US2811465A (en) * 1952-04-30 1957-10-29 Rca Corp Electrostatic printing
GB755486A (en) * 1953-09-15 1956-08-22 Horizons Inc Improvements in electrostatic printing
US2869461A (en) * 1956-02-27 1959-01-20 Eastman Kodak Co Electroprinting from a raised resist pattern
US2898279A (en) * 1956-06-14 1959-08-04 Commw Of Australia Coating surfaces by employing an electrostatic field
US2877133A (en) * 1956-10-22 1959-03-10 Gen Dynamics Corp Electrostatic photography

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3322048A (en) * 1958-09-23 1967-05-30 Harris Intertype Corp Electrophotography
US3383209A (en) * 1960-11-08 1968-05-14 Gevaert Photo Prod Nv Electrophotographic process including selective wetting by the developer liquid
US3285741A (en) * 1961-04-19 1966-11-15 Agfa Gevaert Nv Process for developing electrostatic latent images
US3343956A (en) * 1961-09-29 1967-09-26 Rca Corp Electrostatic printing process wherein development is achieved by sequenctial application of carrier liquid and developer particles
US3247825A (en) * 1963-04-23 1966-04-26 Ibm Wet diaphragm electrostatic printer
US3462286A (en) * 1963-07-16 1969-08-19 Gevaert Photo Prod Nv Method of coating webs with photographic emulsions or other liquid compositions utilizing an electric field
US3419411A (en) * 1963-09-06 1968-12-31 Australia Res Lab Method for the transfer of developed electrostatic images using a lattice forming substance
US3411937A (en) * 1965-03-01 1968-11-19 Interchem Corp Method of liquid electrostatic developing
US3411936A (en) * 1965-03-01 1968-11-19 Interchem Corp Developing electrostatic images with a liquid developer containing tetraphenyl tin or zirconyl 2-ethylhexoate
US3517993A (en) * 1965-10-23 1970-06-30 Bell & Howell Co Development apparatus for continuous rotary electrostatographic apparatus
US3420151A (en) * 1965-11-16 1969-01-07 Fairchild Camera Instr Co Apparatus for electrophotographic printing
US3472676A (en) * 1965-11-18 1969-10-14 Gevaert Photo Prod Nv Process for developing electrostatic charge patterns
US3368526A (en) * 1965-12-01 1968-02-13 Tokyo Shibaura Electric Co Apparatus for developing electrostatic latent images by liquid developing system
US3363555A (en) * 1966-03-28 1968-01-16 Rca Corp Electrostatic method of making multiple copies of an image
US3561356A (en) * 1967-02-24 1971-02-09 Continental Can Co Precharging of substrate for electrostatic printing
US3486922A (en) * 1967-05-29 1969-12-30 Agfa Gevaert Nv Development of electrostatic patterns with aqueous conductive developing liquid
US3744896A (en) * 1967-12-14 1973-07-10 Xerox Corp Imaging system
US3753706A (en) * 1969-10-29 1973-08-21 Xerox Corp A photoelectrosolographic imaging method wherein an absorbent material is used
US3891434A (en) * 1972-12-08 1975-06-24 Herbert Taege Porous material in a liquid development method
US3928669A (en) * 1972-12-12 1975-12-23 Fuji Photo Film Co Ltd Image-forming method
US4023967A (en) * 1973-09-07 1977-05-17 Xerox Corporation Electrophotographic liquid development method in which a uniform substantial interface contact is maintained

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