US3854943A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manifold imaging method and member employing fundamental particles of alpha metal-free phthalocyanine
Assignee: Xerox Corp
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Filing: 1972-02-01
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Granted: 1974-12-17
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Expires: 1992-02-01
Abstract
Abstract A method of imaging wherein an electrically photosensitive imaging layer comprises electrically photosensitive fundamental alpha metal-free phthalocyanine particles greater than 1 micron in size. The imaging layer is placed between two members and imagewise exposed to an electric field and electromagnetic radiation to which the electrically photosensitive particles are sensitive. Upon separation of the members exposed particles of the layer are independently removed from the layer in imagewise configuration thereby forming a copy of the original image on one of the sheets. Production of polychromatic and monochromatic images is enhanced by control of the fundamental particle size.
Inventors
- 👤 R Luebbe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:28
CPC Classifications
G; G03; G03G; G03G17/00; G03G17/10; C; C09; C09B; C09B67/00; C09B67/0025; C09B67/0026; C09B67/0032; G03G5/00; G03G5/02; G03G5/04; G03G5/06
Claims Analysis
Total Claims: 41
Claim 1
Independent Claim
138 words
A METHOD OF IMAGING COMPRISING PROVIDING AN IMAGING LAYER SANDWICHED BETWEEN A A DONOR MEMBER AND A RECEIVER MEMBER, AT LEAST ONE OF SAID MEMBERS BEING AT LEAST PARTIALLY TRANSPARENT TO ELECTROMAGNETIC RADIATION TO WHICH SAID IMAGING LAYER IS SENSITIVE, SAID IMAGING LAYER COMPRISING ELECTRICALLY PHOTOSENSITIVE FUNDAMENTAL PARTICLES OF ALPHA METAL-FREE PHTHALOCYANINE IN THE RANGE OF FROM GREATER THAN 1 MICRON TO ABOUT 25 MICRONS IN SIZE AND SUBSTANTIALLY OF UNIFORM SIZE; EXPOSING SAID IMAGING LAYER TO A PATTERN OF ELECTROMAGNETIC RADIATION TO WHICH SAID PARTICLES ARE SENSITIVE WHILE APPLYING AN ELECTRIC FIELD ACROSS SAID IMAGING LAYER; AND DURING THE APPLICATION OF SAID FIELD SEPARATING SAID RECEIVER MEMBER FROM SAID DONOR MEMBER WHEREBY EXPOSED PARTICLES ARE REMOVED FROM SAID IMAGINING LAYER IN IMAGEWISE DONFIGURATION FORMING AN IMAGE CONFORMING TO THE ORIGINAL ON AT LEAST ONE OF SAID MEMBERS.
Claim 2
Independent Claim
138 words
A METHOD OF IMAGING COMPRISING PROVIDING AN IMAGING LAYER SANDWICHED BETWEEN A A DONOR MEMBER AND A RECEIVER MEMBER, AT LEAST ONE OF SAID MEMBERS BEING AT LEAST PARTIALLY TRANSPARENT TO ELECTROMAGNETIC RADIATION TO WHICH SAID IMAGING LAYER IS SENSITIVE, SAID IMAGING LAYER COMPRISING ELECTRICALLY PHOTOSENSITIVE FUNDAMENTAL PARTICLES OF ALPHA METAL-FREE PHTHALOCYANINE IN THE RANGE OF FROM GREATER THAN 1 MICRON TO ABOUT 25 MICRONS IN SIZE AND SUBSTANTIALLY OF UNIFORM SIZE; EXPOSING SAID IMAGING LAYER TO A PATTERN OF ELECTROMAGNETIC RADIATION TO WHICH SAID PARTICLES ARE SENSITIVE WHILE APPLYING AN ELECTRIC FIELD ACROSS SAID IMAGING LAYER; AND DURING THE APPLICATION OF SAID FIELD SEPARATING SAID RECEIVER MEMBER FROM SAID DONOR MEMBER WHEREBY EXPOSED PARTICLES ARE REMOVED FROM SAID IMAGINING LAYER IN IMAGEWISE DONFIGURATION FORMING AN IMAGE CONFORMING TO THE ORIGINAL ON AT LEAST ONE OF SAID MEMBERS.
Claim 3
Dependent Claim
18 words
The method of claim 1 wherein said fundamental particles are from about 3 to 15 microns in size.
Claim 4
Dependent Claim
18 words
The method of claim 1 wherein said fundamental particles are from about 5 to 10 microns in size.
Claim 5
Independent Claim
157 words
A method of imaging comprising a. providing an imaging mono-layer sandwiched between a donor member and a receiver member, at least one of said members being at least partially transparent to electromagnetic radiation to which said mono-layer is sensitive, said mono-layer comprising a plurality of electrically photosensitive fundamental particles of alpha metal-free phthalocyanine in the range of from greater than 1 micron to about 25 microns in size, and substantially uniform in size, each individual particle of said plurality being removable from said mono-layer independently of the other mono-layer particles; b. exposing said mono-layer to a pattern of electromagnetic radiation to which said particles are sensitive while applying an electric field across said imaging mono-layer; and c. during the application of said field separating said receiver member from said donor member whereby exposed individual particles are removed from said mono-layer in imagewise configuration forming an image conforming to the original on at least one of said members.
Claim 6
Independent Claim
157 words
A method of imaging comprising a. providing an imaging mono-layer sandwiched between a donor member and a receiver member, at least one of said members being at least partially transparent to electromagnetic radiation to which said mono-layer is sensitive, said mono-layer comprising a plurality of electrically photosensitive fundamental particles of alpha metal-free phthalocyanine in the range of from greater than 1 micron to about 25 microns in size, and substantially uniform in size, each individual particle of said plurality being removable from said mono-layer independently of the other mono-layer particles; b. exposing said mono-layer to a pattern of electromagnetic radiation to which said particles are sensitive while applying an electric field across said imaging mono-layer; and c. during the application of said field separating said receiver member from said donor member whereby exposed individual particles are removed from said mono-layer in imagewise configuration forming an image conforming to the original on at least one of said members.
Claim 7
Dependent Claim
19 words
The method of claim 4 wherein said fundamental particles are from about 3 to about 15 microns in size.
Claim 8
Dependent Claim
18 words
The method of claim 4 wherein said fundamental particles are from about 5 to 10 microns in size.
Claim 9
Dependent Claim
15 words
The method of claim 4 wherein at least one of said members is electrically insulating.
Claim 10
Dependent Claim
26 words
The method of claim 7 wherein said electric field is caused by the induction of a static electrical charge onto at least one of said members.
Claim 11
Dependent Claim
17 words
The method of claim 4 wherein said electric field is caused by the application of a potential.
Claim 12
Dependent Claim
31 words
The method of claim 9 wherein said potential is from about 500 volts to about 5,000 volts per mil thickness of the donor member - imaging mono-layer - receiver member sandwich.
Claim 13
Dependent Claim
15 words
The method of claim 4 wherein at least one of said members is a web.
Claim 14
Dependent Claim
30 words
The method of claim 11 wherein said web is the receiver member and further including the step of transferring by mechanical and electrical means and fundamental particles thereto a substrate.
Claim 15
Dependent Claim
21 words
The method of claim 4 further including the addition of an insulating, soluble inter-agglomerate cement to the mono-layer of fundamental particles.
Claim 16
Dependent Claim
14 words
The method of claim 13 wherein said cement is soluble in a hydrocarbon solvent.
Claim 17
Dependent Claim
23 words
The method of claim 14 further including the step of dissolving said cement prior to imaging by the application of a hydrocarbon solvent.
Claim 18
Dependent Claim
42 words
The method of claim 4 further including the step of adding thermoplastic adhesive layers, one each inbetween said mono-layer and said members, thereby balancing the adhesion between said mono-layer and said donor member with that between said mono-layer and said receiver member.
Claim 19
Dependent Claim
23 words
The method of claim 16 further including the step of subjecting said adhesive layers to a temperature sufficient to liquify said adhesive layers.
Claim 20
Dependent Claim
23 words
The method of claim 17 wherein said adhesive layers are liquified prior to exposure of said mono-layer to said pattern of electromagnetic radiation.
Claim 21
Dependent Claim
19 words
The method of claim 17 wherein said adhesive layers are liquified during exposure to said pattern of electromagnetic radiation.
Claim 22
Dependent Claim
20 words
The method of claim 17 wherein said adhesive layers are liquified subsequent to exposure to said pattern of electromagnetic radiation.
Claim 23
Independent Claim
191 words
A method of color imaging comprising: a. providing an imaging mono-layer sandwiched between a donor member and a receiver member, at least one of said members being at least partially transparent to electromagnetic radiation to which said mono-layer is sensitive said mono-layer comprising a plurality of at least two different electrically photosensitive fundamental particles, each of said at least two particles having a different color and a corresponding different spectral sensitivity and said particles being substaNtially uniform in size, one of said two particles comprising alpha metal-free phthalocyanine in the range of from greater than 1 micron to about 25 microns in size, each individual particle of said plurality being removable from said mono-layer independently of other particles; b. exposing said mono-layer to a pattern of electromagnetic radiation to which at least one of said two particles is sensitive while applying an electric field across said imaging mono-layer; and c. during the application of said field separating said receiver member from said donor member whereby exposed individual particles are removed from said mono-layer in imagewise configuration forming a colored image conforming to the original on at least one of said members.
Claim 24
Independent Claim
191 words
A method of color imaging comprising: a. providing an imaging mono-layer sandwiched between a donor member and a receiver member, at least one of said members being at least partially transparent to electromagnetic radiation to which said mono-layer is sensitive said mono-layer comprising a plurality of at least two different electrically photosensitive fundamental particles, each of said at least two particles having a different color and a corresponding different spectral sensitivity and said particles being substaNtially uniform in size, one of said two particles comprising alpha metal-free phthalocyanine in the range of from greater than 1 micron to about 25 microns in size, each individual particle of said plurality being removable from said mono-layer independently of other particles; b. exposing said mono-layer to a pattern of electromagnetic radiation to which at least one of said two particles is sensitive while applying an electric field across said imaging mono-layer; and c. during the application of said field separating said receiver member from said donor member whereby exposed individual particles are removed from said mono-layer in imagewise configuration forming a colored image conforming to the original on at least one of said members.
Claim 25
Dependent Claim
20 words
The method of claim 21 wherein said imaging mono-layer comprises a random mixture of different colors of said fundamental particles.
Claim 26
Dependent Claim
42 words
the method of claim 22 wherein said pattern of electromagnetic radiation comprises radiation to which all of said particles are sensitive and wherein said image on at least one of said members is a multi-colored image comprising at least two different colors.
Claim 27
Dependent Claim
71 words
An imaging member comprising a mono-layer sandwiched between a donor member and a receiver member, at least one of said donor and receiver members being at least partially transparent to electromagnetic radiation to which said mono-layer is sensitive said mono-layer comprising a plurality of electrically photosensitive fundamental particles of alpha metal-free phthalocyanine in the range of greater than 1 micron to about 25 microns in size and substantially uniform in size.
Claim 28
Dependent Claim
71 words
An imaging member comprising a mono-layer sandwiched between a donor member and a receiver member, at least one of said donor and receiver members being at least partially transparent to electromagnetic radiation to which said mono-layer is sensitive said mono-layer comprising a plurality of electrically photosensitive fundamental particles of alpha metal-free phthalocyanine in the range of greater than 1 micron to about 25 microns in size and substantially uniform in size.
Claim 29
Dependent Claim
20 words
The imaging member of claim 24 wherein said fundamental particles are from about 3 to about 15 microns in size.
Claim 30
Dependent Claim
19 words
The imaging member of claim 24 wherein said fundamental particles sizes are from about 5 to about 10 microns.
Claim 31
Dependent Claim
18 words
The imaging member of claim 24 wherein at least one of said donor and receiver members is transparent.
Claim 32
Dependent Claim
19 words
The imaging member of claim 24 wherein at least one of said donor and receiver members is electrically insulating.
Claim 33
Dependent Claim
19 words
The imaging member of claim 24 wherein at least one of said donor and receiver members is a web.
Claim 34
Dependent Claim
17 words
The imaging member of claim 24 further comprising an insulating, soluble inter-agglomerate cement in-between said fundamental particles.
Claim 35
Dependent Claim
24 words
The imaging member of claim 24 further comprising two thermoplastic adhesive layers, one each in between said mono-layer and said donor and receiver members.
Claim 36
Dependent Claim
86 words
An imaging member comprising an imaging mono-layer comprising a plurality of at least two different electrically photosensitive fundamental particles of substantially uniform size, at least one of said at least two particles comprising alpha metal-free phthalocyanine in the range of greater than 1 micron to about 25 microns in size residing on the donor member and a receiver member residing on said particles at least one of said donor and receiver member being at least partially transparent to electromagnetic radiation to which said mono-layer is sensitive.
Claim 37
Dependent Claim
86 words
An imaging member comprising an imaging mono-layer comprising a plurality of at least two different electrically photosensitive fundamental particles of substantially uniform size, at least one of said at least two particles comprising alpha metal-free phthalocyanine in the range of greater than 1 micron to about 25 microns in size residing on the donor member and a receiver member residing on said particles at least one of said donor and receiver member being at least partially transparent to electromagnetic radiation to which said mono-layer is sensitive.
Claim 38
Dependent Claim
21 words
The imaging member of claim 32 wherein said imaging mono-layer comprises a random mixture of different colors of said fundamental particles.
Claim 39
Dependent Claim
20 words
The imaging method of claim 21 further including the step of amplifying said colored image by smearing the colored particles.
Claim 40
Dependent Claim
38 words
An imaged receiver member the image of which comprises alpha electrically photosensitive metal-free phthalocyanine fundamental particles in the range of from greater than 1 micron to about 25 microns in size provided by the process of claim 1.
Claim 41
Dependent Claim
38 words
An imaged donor member the image of which comprises electrically photosensitive alpha metal-free phthalocyanine fundamental particles in the range of from greater than 1 micron to about 25 microns in size provided by the process of claim 1.
References Cited (Backward Citations)
US2758525A
Cited
US2758939A
Cited
US2758524A
Cited
US2940847A
Cited
US3383993A
Cited
US3384566A
Cited
US3615558A
Cited
US3520681A
Cited
US3397086A
Cited
US3357989A
Cited
US3556783A
Cited
US3511651A
Cited
US3723113A
Cited
US3556781A
Cited
US3648607A
Cited
US3640710A
Cited
US3672979A
Cited
US3767392A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-16 | 1978-06-17 | 1978-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-16 | 1982-06-17 | 1982-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-16 | 1986-06-17 | 1986-12-17 | $7700.00 | Window Closed / Lapsed |