EP1099731A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Image forming process, ink set, image by ink-jet recording, recorded article, surface-treated article and surface treating process
Assignee: Canon Inc
•
Filing: 2000-11-09
•
Granted: —
•
Expires: 2020-11-09
Abstract
Abstract An image forming method comprises a step of reacting an ink containing a coloring material with a liquid composition containing fine particles reactive to the coloring material on a recording medium, where the reaction between the coloring material and the fine particles occurs in a liquid, the coloring material is adsorbed on the surfaces of the fine particles while keeping the monomolecular state as in the ink, and the fine particles having the coloring material on the surface aggregate each other. This method can provide images of high optical density and high color saturation, with less occurrence of white stripes in the image.
Inventors
- 👤 Makiko Endo
- 👤 Yutaka Kurabayashi
- 👤 Kentaro Yano
- 👤 Yuji Kondo
- 👤 Masao Kato
- 👤 Hiroshi Tomioka
- 👤 Mitsuhiro Ono
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 14:37
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D11/54; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802
Claims Analysis
Total Claims: 51
Claim 1
Independent Claim
108 words
An image forming method comprising a step of
reacting a droplet of an aqueous ink with a liquid
composition on a recording medium, the ink containing a
coloring material in a monomolecular state and the
liquid composition containing fine particles reactive
with the coloring material, wherein the step comprises:
a process where the coloring material reacts with the
fine particles in a liquid comprised of the droplet and
the liquid composition; a process where the coloring material is adsorbed
onto surfaces of the fine particles keeping the
monomolecular state in the ink; and a process where the fine particles which have
adsorbed the coloring material aggregate each other.
Claim 2
Dependent Claim
88 words
An image forming method comprising a step of
conducting a liquid-liquid reaction between a droplet
of an aqueous ink and a liquid composition on a
recording medium, the ink containing a coloring
material and the liquid composition containing fine
particles reactive with the coloring material, wherein
the step comprises: a process where the coloring material is adsorbed
by the fine particles on surfaces thereof while
maintaining the monomolecular state in the ink; and a process where the fine particles which have
adsorbed the coloring material aggregate each other.
Claim 3
Dependent Claim
119 words
An image forming method comprising a step of
conducting a liquid-liquid reaction between a droplet
of an aqueous ink and a liquid composition on a
recording medium, the ink containing a coloring
material in a monomolecular state and the liquid
composition containing fine particles reactive with the
coloring material, wherein the step comprises: a process where the fine particles near a
constituent surface of the recording medium are
physically or chemically adsorbed on the constituent
surface of the recording medium; a process where the coloring material is adsorbed
by the fine particles on surfaces thereof while
maintaining the monomolecular state in the ink; and a process where the fine particles which have
adsorbed the coloring material aggregate each other.
Claim 4
Dependent Claim
97 words
An image forming method comprising a step of
conducting a liquid-liquid reaction between a droplet
of an aqueous ink and a liquid composition, the ink
containing a coloring material in a monomolecular state
and the liquid composition containing fine particles
reactive to the coloring material, wherein the step
comprises: a process where the coloring material is adsorbed
on surfaces of the fine particles at an interface
between the droplet and the liquid composition while
keeping the monomolecular state in the ink; and a process where the fine particles which have
adsorbed the coloring material aggregate each other.
Claim 5
Dependent Claim
94 words
An image forming method comprising a step of
conducting a liquid-liquid reaction between a droplet
of an aqueous ink and a liquid composition, the ink
containing a coloring material in a monomolecular state
and the liquid composition containing fine particles
reactive to the coloring material, wherein the step
comprises: a process wherein the coloring material diffuses
into the liquid composition to be adsorbed on the
surfaces of the fine particles while keeping the
monomolecular state; and a process where the fine particles having
adsorbed the coloring material on the surface thereof
aggregate each other.
Claim 6
Dependent Claim
131 words
An image forming method comprising a step of
conducting a liquid-liquid reaction between a droplet
of an aqueous ink and a liquid composition, the ink
containing a coloring material in a monomolecular state
and the liquid composition containing fine particles
reactive to the coloring material, wherein the step
comprises: a process where the coloring material is adsorbed
on the surfaces of the fine particles while keeping the
monomolecular state in the vicinity of an interface
between the droplet and the liquid composition; a process where the coloring material diffuses
into the liquid composition to be adsorbed on the
surfaces of the fine particles while keeping the
coloring material in the monomolecular state; and a process where the fine particles having
adsorbed the coloring material on the surface thereof
aggregate each other.
Claim 7
Dependent Claim
160 words
An image forming method comprising a step of
conducting a liquid-liquid reaction between a droplet
of an aqueous ink and a liquid composition on a
recording medium, the ink containing a coloring
material in a monomolecular state and the liquid
composition containing fine particles reactive to the
coloring material, wherein the step comprises: a process the fine particles in the vicinity of a
constituent surface of the recording medium are
physically or chemically adsorbed on the constituent
surface of the recording medium; a process where the coloring material is adsorbed
on the surfaces of the fine particles while keeping the
monomolecular state, in the vicinity of an interface
between the droplet and the liquid composition; a process where the coloring material diffuses
into the liquid composition to be adsorbed on the
surfaces of the fine particles while keeping the
monomolecular state; and a process where the fine particles having
adsorbed the coloring material on the surface thereof
aggregates each other.
Claim 8
Dependent Claim
228 words
An image forming method comprising a step of
conducting a liquid-liquid reaction between a droplet
of an aqueous ink and a liquid composition, the ink
containing a coloring material in a monomolecular state
and the liquid composition containing fine particles
reactive to the coloring material, wherein the step
comprises: a process where the fine particles in the
vicinity of a constituent surface of the recording
medium aggregate each other on the constituent surface
of the recording medium; a process where the coloring material is adsorbed
on the surfaces of the aggregates of the fine particles
while keeping the monomolecular state; a process where the fine particles and the
coloring material in the vicinity of an interface
between the droplet and the liquid composition contact
each other and the coloring material is adsorbed on the
surfaces of the fine particles while keeping the
monomolecular state; a process where the coloring material diffuses
into the liquid composition to be adsorbed on the
surfaces of the fine particles while keeping the
monomolecular state; a process where a dispersion state of the fine
particles becomes unstable due to the adsorption of the
coloring material on the surfaces thereof, and the fine
particles aggregate each other; and a process where the fine particles having
adsorbed or bound the coloring material on the surfaces
thereof are fixed to the surface of the recording
medium.
Claim 9
Dependent Claim
234 words
An image forming method comprising a step of
conducting a liquid-liquid reaction between a droplet
of an aqueous ink and a liquid composition on a
recording medium, the ink containing a coloring
material in a monomolecular state and the liquid
composition containing fine particles which are
reactive to the coloring material and aggregate as a
distance between particles becomes short, wherein the
step comprises: a process where the fine particles in the
vicinity of a constituent surface of the recording
medium aggregate each other on the constituent surface
of the recording medium; a process where the coloring material is adsorbed
on or bonded to surfaces of the aggregates of the fine
particles while keeping the monomolecular state; a process where the fine particles in the
vicinity of an interface between the droplet and the
liquid composition come into contact with the coloring
material to adsorb or bond the coloring material while
keeping the monomolecular state of the coloring
material; a process where the coloring material diffuses
into the liquid composition to be adsorbed on or bonded
to surfaces of the fine particles while keeping the
monomolecular state; a process where the fine particles having
adsorbed the coloring material on the surfaces thereof
aggregate each other; and a process the fine particles and aggregates
thereof having adsorbed or bonded the coloring material
on the surfaces thereof are fixed to the surface of the
recording medium.
Claim 10
Dependent Claim
41 words
The image forming method according to any
one of Claims 1 to 9, wherein the aggregation of the
fine particles having adsorbed the coloring material is
attributable to the absorption of the coloring material
on the surfaces of the fine particles.
Claim 11
Dependent Claim
184 words
An image forming method comprising a step of
conducting a liquid-liquid reaction between a droplet
of an aqueous ink and a liquid composition on a
recording medium, the ink containing a coloring
material in a monomolecular state, the liquid
composition containing fine particles reactive to the
coloring material, wherein the step comprises: a process where the fine particles in the
vicinity of a fiber surface of the recording medium are
physically or chemically adsorbed on the fiber surface; a process where the coloring material is adsorbed
on surfaces of the fine particles in the vicinity of an
interface between the droplet and the liquid
composition while keeping the monomolecular state; a process where the coloring material diffuses
into the liquid composition to be adsorbed on surfaces
of the fine particles while keeping the monomolecular
state; a process where the fine particles aggregate each
other due to the adsorption of the coloring material on
the surfaces of the fine particles; and a process where the fine particles having
adsorbed the coloring material on the surfaces thereof
are fixed to the surface of the recording medium.
Claim 12
Dependent Claim
28 words
The image forming method according to Claim
11, wherein the fine particles are electrochemically
adsorbed on the recording medium to enhance the liquid-liquid
reaction on the recording medium.
Claim 13
Dependent Claim
203 words
An image forming method comprising a step of
conducting a liquid-liquid reaction between a droplet
of an aqueous ink and a liquid composition on a
recording medium, the ink containing a coloring
material in a monomolecular state, and the liquid
composition containing fine particles reactive to the
coloring material, wherein the step comprises: a process where the fine particles in the
vicinity of a fiber surface of the recording medium are
physically or chemically adsorbed on the fiber surface; a process where a pool of the liquid composition
is formed on the recording medium; a process where the coloring material is adsorbed
on the surfaces of the fine particles in the vicinity
of an interface between the droplet and the pool of the
liquid composition while keeping the monomolecular
state; a process where the coloring material diffuses
into the liquid composition to be adsorbed on surfaces
of the fine particles while keeping the monomolecular
state; a process where the fine particles aggregate
themselves due to the adsorption of the coloring
material on the surfaces of the fine particles; and a process where the fine particles having
adsorbed the coloring material on the surfaces thereof
are fixed to the surface of the recording medium.
Claim 14
Dependent Claim
20 words
The image forming method according to any
one of Claims 1 to 13, wherein an ink-jet recording
method is used.
Claim 15
Dependent Claim
20 words
The image forming method according to any
one of Claims 1 to 14, wherein the ink is anionic or
cationic.
Claim 16
Dependent Claim
20 words
The image forming method according to any
one of Claims 1 to 15, wherein the material is anionic
or cationic.
Claim 17
Dependent Claim
31 words
The image forming method according to any
one of Claims 1 to 15, wherein the ink is anionic or
cationic, and the fine particles have a polarity
opposite to the ink.
Claim 18
Dependent Claim
35 words
The image forming method according to any
one of Claims 1 to 17, wherein the ink contains the
coloring material being anionic or cationic, and the
fine particles have a polarity opposite to the ink.
Claim 19
Dependent Claim
55 words
An image forming method comprising the steps
of reacting a droplet of an aqueous ink containing a
coloring material with a liquid composition containing
fine particles reactive to the coloring material on a
recording medium; and causing the coloring material to
be uniformly adsorbed in a monomolecular state on the
surfaces of the fine particles.
Claim 20
Dependent Claim
43 words
An ink set comprising an anionic or cationic
aqueous ink containing a coloring material, and an
aqueous liquid composition containing a compound
reactive to the aqueous ink, wherein specific gravities
of the aqueous ink and the liquid composition are
different from each other.
Claim 21
Dependent Claim
20 words
The ink set according to Claim 20, wherein
the aqueous ink is lighter than the liquid composition
in specific gravity.
Claim 22
Dependent Claim
20 words
The ink set according to Claim 20, wherein
the aqueous ink is heavier than the liquid composition
in specific gravity.
Claim 23
Dependent Claim
47 words
An ink-jet recorded image comprising a
colored portion which contains fine particles having a
coloring material in a monomolecular state on surfaces
thereof, wherein a saturation in CIE-L * a * b * space at a
solid printed area of the colored portion is at least 50.
Claim 24
Dependent Claim
47 words
An ink-jet recorded image having a colored
portion on a recording medium, wherein the colored
portion contains colored fine particles or aggregates
thereof wherein a coloring material has been adsorbed
to at least one of fine particles or aggregates thereof
in a monomolecular state on particle surfaces.
Claim 25
Dependent Claim
71 words
An ink-jet recorded image, characterized in
that a constituent of a recording medium in a recording
site comes into direct contact with a part of the
surfaces of at least one of fine particles and
aggregates of the fine particles at the surface of the
constituent, and a coloring material is adsorbed in a
monomolecular state on the surfaces of at least one of
the fine particles and fine particle aggregates.
Claim 26
Dependent Claim
56 words
A ink-jet recorded image formed by a
coloring material and fine particles reactive to the
coloring material, wherein a main image forming part is
formed by aggregates of the fine particles of which
surfaces have adsorbed the coloring material, and a
feathering of an ink is formed at a peripheral part of
the main image part.
Claim 27
Dependent Claim
42 words
A ink-jet recorded image formed by a
coloring material and fine particles reactive to the
coloring material, wherein the coloring material is
present more than the fine particles at a peripheral
part of a main image forming part of a colored portion.
Claim 28
Dependent Claim
33 words
The ink-jet recorded image according to any
one of Claims 23 to 27, wherein the coloring material
is anionic or cationic, and the fine particles have a
polarity opposite to the coloring material.
Claim 29
Dependent Claim
42 words
The ink-jet recorded image according to
Claim 28, wherein the fine particles have such a
surface potential that an absolute value of a zeta
potential in an aqueous liquid composition in which the
fine particles are dispersed is 5 to 90 mV.
Claim 30
Dependent Claim
32 words
The ink-jet recorded image according to any
one of Claims 23 to 29, wherein the average particle
diameter of the fine particles is within a range of
from 0.005 to 1 µm.
Claim 31
Dependent Claim
20 words
The ink-jet recorded image according to any
one of Claims 23 to 30, wherein the image is of plural
colors.
Claim 32
Dependent Claim
31 words
The ink-jet recorded image according to
Claim 31, wherein the plural colors are at least two
colors selected from the group consisting of yellow,
magenta, cyan, red, green, blue and black.
Claim 33
Dependent Claim
85 words
A recorded article having an image
comprising a colored portion on a recording medium,
wherein the image comprises at least one of fine
particles and aggregates of fine particles, at least
one of the fine particles and the aggregates of fine
particles adsorb a coloring material in a monomolecular
state on the surfaces thereof, and at least one of the
fine particles and the aggregates of fine particles
come into contact with the surface of a constituent of
a recording medium through the coloring material.
Claim 34
Dependent Claim
53 words
A recorded article comprising at least one
of fine particles and aggregates of fine particle, on
the surfaces of which a coloring material has been
adsorbed in a monomolecular state, said fine particles
or aggregates being present on the surface of a
recording medium in the form of aggregate mass
partially containing voids.
Claim 35
Dependent Claim
65 words
A recorded article having an image
comprising a colored portion on a recording medium,
wherein the colored portion includes a first region
mainly containing at least one of fine particles and
aggregates of fine particles, on the surfaces of which
a coloring material has been adsorbed in a
monomolecular state, and a second region located
outside the first region and mainly containing the
coloring material.
Claim 36
Dependent Claim
41 words
A recorded article comprising, on the
surface of a recording medium, a recorded portion
containing at least one of fine particles and
aggregates of fine particle, on the surfaces of which a
recording agent has been adsorbed in a monomolecular
state.
Claim 37
Dependent Claim
83 words
An ink set independently comprising an ink
containing a coloring material, and a liquid
composition containing fine particles reactive to the
coloring material, wherein the ink and the liquid
composition are such that when they are mixed with each
other, the coloring material is adsorbed on or bonded
to the surfaces of the fine particles while keeping a
molecular state as in the ink, whereby the dispersed
state of the fine particles is made unstable to cause
aggregation of the fine particles themselves.
Claim 38
Dependent Claim
76 words
An ink set independently comprising an ink
containing a coloring material, and a liquid
composition containing fine particles reactive to the
coloring material, wherein the ink and the liquid
composition are such that when they are mixed with each
other, monomolecules of the coloring material are
adsorbed on or bonded to the surfaces of the fine
particles, whereby the dispersed state of the fine
particles is made unstable to cause aggregation of the
fine particles themselves.
Claim 39
Dependent Claim
38 words
A surface-treated article characterized in
that the surface of the article has at least one of
fine particles and aggregates of fine particle, the
surfaces of the particles a functional substance has
been adsorbed in a monomolecular state.
Claim 40
Dependent Claim
79 words
A surface treating method for imparting a
functionality to a base material, the method comprising
the steps of: bringing a first liquid composition containing a
functional substance and a second liquid composition
containing fine particles reactive to the functional
substance into contact with each other in a liquid
state; and causing the functional substance to be evenly
adsorbed in a monomolecular state on the surfaces of at
least one of the fine particles and aggregates of the
fine particles.
Claim 41
Dependent Claim
112 words
An image forming method comprising a step of
reacting an ink with a liquid composition on a
recording medium, the ink containing a coloring
material and the liquid composition containing fine
particles reactive to the ink, wherein the step
comprises: a process where the coloring material is adsorbed
on or bonded to the surfaces of the fine particles or
aggregates of the fine particles at least on the
surface of the recording medium or at the vicinity
thereof; and a process where the fine particles or the fine
particle aggregates having adsorbed the coloring
material on the surface thereof, are fixed to the
surface of the recording medium or the vicinity
thereof.
Claim 42
Dependent Claim
126 words
An image forming method comprising a step of
conducting a liquid-liquid reaction between a droplet
of an aqueous ink and a liquid composition on a
recording medium, the ink containing a coloring
material and the liquid composition containing fine
particles reactive to the coloring material, wherein
the step comprises: a process where the coloring material is adsorbed
or bonded in a monomolecular state to the surfaces of
the fine particles or aggregates of the fine particles
at least on the surface of the recording medium or at
the vicinity thereof; and a process where the fine particles or the fine
particle aggregates, on the surfaces of which the
coloring material has been adsorbed, are fixed to the
surface of the recording medium or the vicinity
thereof.
Claim 43
Dependent Claim
148 words
An image forming method comprising a step of
conducting a liquid-liquid reaction between a droplet
of an aqueous ink and a liquid composition, the ink
containing a coloring material and the liquid
composition containing fine particles reactive to the
coloring material, wherein the step comprises: a process where the fine particles in the
vicinity of a constituent surface of the recording
medium are physically or chemically adsorbed on the
constituent surface; a process where the coloring material is adsorbed
or bonded in a monomolecular state to the surfaces of
the fine particles or aggregates of the fine particles
at least on the surface of the recording medium or at
the vicinity thereof; and a process where the fine particles or the fine
particle aggregates, on the surfaces of which the
coloring material has been adsorbed, are fixed to the
surface of the recording medium or the vicinity
thereof.
Claim 44
Dependent Claim
145 words
An image forming method comprising a step of
conducting a liquid-liquid reaction between a droplet
of an aqueous ink and a liquid composition, the ink
containing a coloring material and the liquid
composition containing fine particles reactive to the
coloring material, wherein the step comprises: a process where the fine particles aggregate
themselves in the vicinity of a constituent surface of
the recording medium on the constituent surface; a process where the coloring material is adsorbed
or bonded to the surfaces of the fine particles or
aggregates of the fine particles in a monomolecular
state at least on the surface of the recording medium
or at the vicinity thereof; and a process where the fine particles or the fine
particle aggregates, on the surfaces of which the
coloring material has been adsorbed, are fixed to the
surface of the recording medium or the vicinity
thereof.
Claim 45
Dependent Claim
213 words
An image forming method comprising a step of
conducting a liquid-liquid reaction between a droplet
of an aqueous ink and a liquid composition, the ink
containing a coloring material in a monomolecular state
and the liquid composition containing fine particles,
which fine particles are reactive to the coloring
material and aggregate by mixing with the ink, on a
recording medium, wherein the step comprises: a process where the fine particles in the
vicinity of a constituent surface of the recording
medium aggregate on the constituent surface; a process where the coloring material is adsorbed
on or bonded to the surfaces of aggregates of the fine
particles while keeping the monomolecular state; a process where the fine particles in the
vicinity of an interface between the ink and the liquid
composition come into contact with the coloring
material to adsorb or bond the coloring material to the
surfaces of the fine particles while keeping the
monomolecular state of the coloring material; a process where aggregation of the fine particles
on the surfaces of which the coloring material has been
adsorbed occurs; and a process where the fine particles and fine
particle aggregates, on the surfaces of which the
coloring material has been adsorbed or bonded, are
fixed to the surface of the recording medium.
Claim 46
Dependent Claim
64 words
The image forming method according to any
one of Claims 41 to 45, which further comprises a
process where the ink and the liquid composition come
into contact with each other, and diffuse into each
other to form a mixed liquid, and a process where the
coloring material is adsorbed or bonded in a
monomolecular state to the fine particles in the mixed
liquid.
Claim 47
Dependent Claim
61 words
The image forming method according to Claim
46, wherein the process where the ink and the liquid
composition come into contact with each other and
diffuse into each other comprises a process where a
pool of the liquid composition is formed on the
recording medium, and a process where the pool of the
liquid composition comes into contact with the ink.
Claim 48
Dependent Claim
60 words
The image forming method according to Claim
46, wherein the process where the ink and the liquid
composition come into contact with each other and
diffuse into each other comprises a process where a
pool of the ink is formed on the recording medium, and
a process where the pool of the ink comes into contact
with the liquid composition.
Claim 49
Dependent Claim
26 words
The image forming method according to Claim
45, wherein the fine particles and fine particle
aggregates are fixed to the recording medium through
the coloring material.
Claim 50
Dependent Claim
63 words
A recorded article having a colored portion
formed on a recording medium, the colored portion
containing at least one of fine particles and
aggregates of fine particle, on the surfaces of which a
coloring material has been adsorbed in a monomolecular
state, wherein at least one of the coloring material
and the fine particles has penetrated into an inside of
the recording medium.
Claim 51
Dependent Claim
81 words
A recorded article comprising a colored
portion formed on a recording medium, the colored
portion containing at least one of fine particles and
aggregates of fine particle on the surfaces of which a
coloring material has been adsorbed in a monomolecular
state, wherein the coloring material and the fine
particles has penetrated into the inside of the
recording medium, and at least part of the penetrated
coloring material is adsorbed or bonded to the
penetrated fine particles in a monomolecular state.
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