Inkjet recording method and printed medium
AssigneeBrother Kogyo Kabushiki Kaisha
InventorYuho Miyake
Life of this patent
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Abstract
An inkjet recording method may include: ejecting ink under a first condition; and drying the ink under a second condition. An Sal may be 5 nm or less in 80% or more of a plurality of first partial regions. The first condition may include: (1) using the ink that comprises resin particles having a Tg of 50° C. or higher, an organic solvent, and water, wherein the ink comprises the resin particles in 5 mass % or more and 11 mass % or less. The first condition and the second condition may be conditions that satisfy: (2) in a case where a ratio of an amount of ejected ink to an amount of remaining ink after the drying is 1:0.05 to 0.15, an Sdr is 6% or less in 80% or more of a plurality of second partial regions when the amount of ejected ink is 1 mg/cm2.
Claims14
An inkjet recording method, comprising:
- ejecting ink onto a surface of a medium under a first condition;
- and
- drying the ink by heating the medium under a second condition after the ejecting,
- wherein
- an arithmetic mean height Sa1 is 5 nm or less in 80% or more of a plurality of first partial regions randomly selected from the surface of the medium,
- the first condition includes:
- (1) using the ink that comprises resin particles having a glass transition temperature Tg of 50° C. or higher, an organic solvent, and water, wherein the ink comprises the resin particles in 5 mass % or more and 11 mass % or less, and
- the first condition and the second condition are conditions that satisfy:
- (2) in a case where a ratio of an amount of ejected ink to an amount of remaining ink after the drying is 1:0.05 to 0.15, a developed area ratio Sdr is 6% or less in 80% or more of a plurality of second partial regions randomly selected from an ink adhering region on the surface of the medium when the amount of ejected ink is 1 mg/cm2.
A printed medium obtained by ejecting ink onto a surface of a medium, wherein in the printed medium:
- (1) an arithmetic mean height Sa1 is 5 nm or less in 80% or more of a plurality of first partial regions randomly selected from a non-ink-adhering region on the surface of the medium;
- and
- (2) a developed area ratio Sdr is 6% or less in 80% or more of a plurality of second partial regions randomly selected from an ink adhering region on the surface of the medium when an amount of ejected ink is 1 mg/cm2.
Dependencies are inferred from the claim text.