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US 2026/0161107 A1Published application
Method of manufacturing resin fine particles, resin fine particle composition, toner. and distilling device
AssigneeEtria Co., Ltd.
InventorsShunki Katsumata, Daizaburoh Mizuno, Natsuko Matsushita
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Abstract
A method of manufacturing resin fine particles includes preparing a resin dispersion containing an organic solvent, water, a resin, and a surfactant and distilling the resin dispersion to remove the organic solvent, wherein the mass ratio of the resin to the surfactant is from 1:1 to 1:2.
Claims7
A method of manufacturing resin fine particles, comprising:
- preparing a resin dispersion containing an organic solvent, water, a resin, and a surfactant;
- and
- distilling the resin dispersion to remove the organic solvent,
- wherein a mass ratio of the resin to the surfactant is from 1:1 to 1:2.
1 more element
Resin fine particles comprising:
- a resin comprising a polyester resin;
- a colorant;
- a release agent;
- and
- a surfactant,
- wherein the resin fine particles have a volume average particle diameter of 10 to 30 μm,
- wherein the surfactant has a concentration of 500 to 1000 ppm at surfaces of the resin fine particles,
- wherein an average value of an intensity ratio (P2850/P828) of an absorption spectral peak intensity P2850 at a wavenumber of 2850 cm−1 to an absorption spectral peak intensity P828 at a wavenumber of 828 cm−1, as determined by Fourier Transform Infrared Spectroscopy-Attenuated Total Reflection (FTIR-ATR) mapping, on the surfaces of the resin fine particles is 0.20 to 0.40,
- wherein a proportion of the intensity ratio (P2850/P828) having at least 0.40 is 10 to 50 percent.
6 more elements
A distilling device comprising:
- a distilling tank comprising a wall, to store a resin dispersion containing an organic solvent, water, a resin, and a surfactant;
- and
- a heating device connected to a heat pump to heat the wall,
- wherein the heating device changes a temperature inside the distilling tank stepwise, to distill the resin dispersion to remove the organic solvent from the resin dispersion.
1 more element
Dependencies are inferred from the claim text.