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US 12,752,566 B2Granted
Ink jet recording method, ink jet recording apparatus and aqueous ink
AssigneeCanon Kabushiki Kaisha
InventorsTakuto Moriguchi, Osamu Yoshitake, Shin-Ichi Sato, Shoei Moribe, Ryosuke Otani
Life of this patent
Estimating the term…
Abstract
There is provided an ink jet recording method including an ink applying step, a drying step and a fixing step. An aqueous ink contains a resin particle and a wax particle. The glass transition temperature (Tg(° C.)) of the resin particle, the melting point (Tm) of the wax particle and the surface temperature (Td(° C.)) of the recording medium heated in the drying step satisfy the relationship of the following formula (1): T m > λ C H C C H × T CH + λ p a p e r C paper × T p a p e r λ C H C CH + λ paper C paper ≥ T g > T d . formula ( 1 )
Claims6
An ink jet recording method, comprising:
- an ink applying step of applying an aqueous ink to an ink-absorbent recording medium by discharging the aqueous ink from an ink jet recording head;
- a drying step of subjecting the recording medium to which the aqueous ink has been applied to non-contact heating to dry the aqueous ink;
- and
- a fixing step of fixing the aqueous ink on the recording medium by bringing the recording medium after the drying step into contact with a fixing member to heat the aqueous ink,
- wherein the aqueous ink comprises a resin particle and a wax particle, and
- a glass transition temperature (Tg(° C.)) of the resin particle, a melting point (Tm) of the wax particle and a surface temperature (Td(° C.)) of the recording medium heated in the drying step satisfy a relationship of the following formula (1):
- T
- m
- >
- λ
- C
-
- H
-
- C
- C
-
- H
- ×
- T
- CH
- +
- λ
- p
-
- a
-
- p
-
- e
-
- r
-
- C
- paper
- ×
- T
- p
-
- a
-
- p
-
- e
-
- r
- λ
- C
-
- H
-
- C
- CH
- +
- λ
- paper
-
- C
- paper
- ≥
- T
- g
- >
- T
- d
- formula
-
- (
- 1
- )
- where in formula (1), λCH is a thermal conductivity (W/m·K) of the fixing member, CCH is a thermal capacity (J/m3·K) of the fixing member, TCH is a surface temperature (° C.) of the fixing member immediately before the fixing member comes into contact with the recording medium, λpaper is a thermal conductivity (W/m·K) of the recording medium, Cpaper is a thermal capacity (J/m3·K) of the recording medium and Tpaper is a surface temperature (° C.) of the recording medium immediately before the recording medium comes into contact with the fixing member.
68 more elements
An ink jet recording apparatus for use in an ink jet recording method, wherein the method includes:
- an ink applying step of applying an aqueous ink to an ink-absorbent recording medium by discharging the aqueous ink from an ink jet recording head;
- a drying step of subjecting the recording medium to which the aqueous ink has been applied to non-contact heating to dry the aqueous ink;
- and
- a fixing step of fixing the aqueous ink on the recording medium by bringing the recording medium after the drying step into contact with a fixing member to heat the aqueous ink,
- wherein the aqueous ink comprises a resin particle and a wax particle, and
- a glass transition temperature (Tg(° C.)) of the resin particle, a melting point (Tm) of the wax particle and a surface temperature (Td(° C.)) of the recording medium heated in the drying step satisfy a relationship of the following formula (1):
- T
- m
- >
- λ
- C
-
- H
-
- C
- C
-
- H
- ×
- T
- CH
- +
- λ
- p
-
- a
-
- p
-
- e
-
- r
-
- C
- paper
- ×
- T
- p
-
- a
-
- p
-
- e
-
- r
- λ
- C
-
- H
-
- C
- CH
- +
- λ
- paper
-
- C
- paper
- ≥
- T
- g
- >
- T
- d
- formula
-
- (
- 1
- )
- where in formula (1), λCH is a thermal conductivity (W/m·K) of the fixing member, CCH is a thermal capacity (J/m3·K) of the fixing member, TCH is a surface temperature (° C.) of the fixing member immediately before the fixing member comes into contact with the recording medium, λpaper is a thermal conductivity (W/m·K) of the recording medium, Cpaper is a thermal capacity (J/m3·K) of the recording medium and Tpaper is a surface temperature (° C.) of the recording medium immediately before the recording medium comes into contact with the fixing member.
68 more elements
An aqueous ink for use in an ink jet recording method, the aqueous ink comprising:
- a resin particle;
- and
- a wax particle,
- wherein the ink jet recording method includes:
- an ink applying step of applying an aqueous ink to an ink-absorbent recording medium by discharging the aqueous ink from an ink jet recording head,
- a drying step of subjecting the recording medium to which the aqueous ink has been applied to non-contact heating to dry the aqueous ink, and
- a fixing step of fixing the aqueous ink on the recording medium by bringing the recording medium after the drying step into contact with a fixing member to heat the aqueous ink,
- wherein a glass transition temperature (Tg(° C.)) of the resin particle, a melting point (Tm) of the wax particle and a surface temperature (Td(° C.)) of the recording medium heated in the drying step satisfy a relationship of the following formula (1):
- T
- m
- >
- λ
- C
-
- H
-
- C
- C
-
- H
- ×
- T
- CH
- +
- λ
- p
-
- a
-
- p
-
- e
-
- r
-
- C
- paper
- ×
- T
- p
-
- a
-
- p
-
- e
-
- r
- λ
- C
-
- H
-
- C
- CH
- +
- λ
- paper
-
- C
- paper
- ≥
- T
- g
- >
- T
- d
- formula
-
- (
- 1
- )
- where in formula (1), λCH is a thermal conductivity (W/m·K) of the fixing member, CCH is a thermal capacity (J/m3·K) of the fixing member, TCH is a surface temperature (° C.) of the fixing member immediately before the fixing member comes into contact with the recording medium, λpaper is a thermal conductivity (W/m·K) of the recording medium, Cpaper is a thermal capacity (J/m3·K) of the recording medium and Tpaper is a surface temperature (° C.) of the recording medium immediately before the recording medium comes into contact with the fixing member.
70 more elements
Dependencies are inferred from the claim text.