Ink, method of manufacturing acrylic resin particle, printing method, ink accommodating unit, and inkjet printing device
An ink includes a coloring material, an acrylic resin particle, an organic solvent, and water, wherein a solid dry film of the ink has a breaking elongation ratio of 50 percent or more, a storage elastic modulus G′ of 1.0×10 6 Pa or more at 50 degrees C., and a swelling ratio of 40 percent or less to ethylacetate.
1. An ink comprising:
a coloring material;
an acrylic resin particle comprising a second structure unit B represented by the following Chemical formula 1,
where R represents a hydrogen atom or a methyl group, and A represents a linear alkyl group having 1 to 10 carbon atoms;
an organic solvent; and
water,
wherein a solid dry film of the ink has a breaking elongation ratio of 50 percent or more, a storage elastic modulus G′ of 1.0×10 6 Pa or more at 50 degrees C., and a swelling ratio of 40 percent or less to ethylacetate.
2. The ink according to claim 1 , wherein the acrylic resin particle further comprises a first structure unit A represented by the following Chemical structure 1, and a third structure unit C represented by the following Chemical structure 2,
where B represents —CH 2 CH(CH 2 CH 3 )CH 2 CH 2 CH 2 CH 3 .
3. The ink according to claim 2 ,
wherein the acrylic resin particle comprises the first structure unit A in an amount of from 40 to 60 percent by mass, the second structure unit B in an amount of 20 to 30 percent by mass, and the third structure unit C in an amount of from 10 to 40 percent by mass,
wherein a mass ratio of the first structure unit A to the second structure unit B is from 2 to 3.
4. The ink according to claim 1 , wherein the organic solvent comprises 1,2-hexane diol or 1,2-propane diol.
5. The ink according to claim 1 , wherein the organic solvent comprises 1,2-hexane diol and one member selected from the group consisting of 1,2-propane diol, 1,3-butane diol, and 1,3-propane diol.
6. A method of manufacturing the acrylic resin particle in the ink of claim 2 , comprising:
reacting styrene as a monomer A forming the first structure unit A, (meth)acrylate as a monomer B forming the second structure unit B, and 2-ethylhexyl acrylate as a monomer C forming the third structure unit C.
7. A printing method comprising:
attaching the ink of claim 1 to a recording medium; and
drying the recording medium to which the ink has been attached at 100 degrees C. or higher.
8. The printing method according to claim 7 , wherein the ink is discharged in the attaching.
9. An ink accommodating unit comprising:
a container; and
the ink of claim 1 contained in the container.
10. An inkjet printing device comprising:
a discharging device configured to discharge an ink; and
the ink accommodating unit of claim 9 .
11. An ink, comprising:
a coloring material;
an acrylic resin particle comprising a third structure unit C represented by the following Chemical structure 2 in an amount of from 20 to 40 percent by mass,
where B represents —CH 2 CH(CH 2 CH 3 )CH 2 CH 2 CH 2 CH 3 ;
an organic solvent and
water,
wherein a solid dry film of the ink has a breaking elongation ratio of 50 percent or more, a storage elastic modulus G′ of 1.0×10 6 Pa or more at 50 degrees C., and a swelling ratio of 40 percent or less to ethylacetate.
12. The ink according to claim 11 , wherein the acrylic resin particle comprises the third structure unit C in an amount of from 30 to 40 percent by mass.
13. The ink according to claim 11 , wherein the acrylic resin particle further comprises a first structure unit A represented by the following Chemical structure 1, and a second structure unit B represented by the following Chemical formula 1, such that a mass ratio of the first structure unit A to the second structure unit B is from 2 to 3:
where R represents a hydrogen atom or a methyl group, and A represents a linear alkyl group having 1 to 10 carbon atoms.