公开(公告)号：US20230236521A1

公开(公告)日：2023-07-27

申请号：US18007172

申请日：2020-12-03

Applicant: KAO CORPORATION

Inventor： Sumihiro SUZUKI ,  Takayuki KIBATA ,  Tsuyoshi ODA ,  Hiroshi MIZUHATA

IPC: G03G9/087 ,  G03G9/08

CPC classification number: G03G9/087 ,  G03G9/0804

Abstract: A method of producing a resin particle dispersion for toner, including, cooling a mixture including a resin particle dispersion containing an amorphous resin and a crystalline resin, and an aqueous medium. Where the cooling includes together fluidizing, continuously mixing, and continuously discharging the mixture of the resin particle dispersion and the aqueous medium.

公开(公告)号：US20180134906A1

公开(公告)日：2018-05-17

申请号：US15564375

申请日：2016-03-31

Applicant: KAO CORPORATION

Inventor： Hiroto SOMA ,  Hiroshi MIZUHATA

IPC: C09D11/104 ,  C09D11/106 ,  C09D11/32 ,  B41M5/52 ,  B41J2/01

Abstract: The present invention provides a water-based ink that is excellent in adhesion to a resin printing medium formed of a resin such as polyethylene terephthalate, polyvinyl chloride, polyethylene, polypropylene, nylon, etc., gloss and anti-blocking properties upon storage of the printing medium after printing. The present invention relates to [1] a water-based ink including a colorant, polyester resin particles and modified polyolefin resin particles, in which the polyester resin particles are constituted of a resin containing an amorphous polyester having a glass transition temperature of not lower than 40° C. and not higher than 100° C., and a mass ratio of the polyester resin particles to the modified polyolefin resin particles (polyester resin particles/modified polyolefin resin particles) is not less than 10/90 and not more than 90/10, and [2] an ink-jet printing method including the steps of allowing the water-based ink according to the above [1] to adhere onto a resin printing medium by an ink-jet printing method; and then heating the resin printing medium onto which the water-based ink is adhered, to a temperature of not lower than 40° C. and not higher than 100° C.

公开(公告)号：US20160179021A1

公开(公告)日：2016-06-23

申请号：US14909311

申请日：2014-06-13

Applicant: KAO CORPORATION

Inventor： Hiroshi MIZUHATA ,  Koji SHIMOKUSA

IPC: G03G9/08

CPC classification number: G03G9/0804 ,  G03G9/0819 ,  G03G9/08755 ,  G03G9/08782

Abstract: According to the present invention, there are provided a process for producing a toner for development of electrostatic images which is capable of suppressing desorption and exposure of a releasing agent therein, and excellent in fusing property, suppression of toner cloud and durability; a process for producing a dispersion, and a kit for producing the dispersion. The present invention relates to a process for producing a toner for development of electrostatic images which includes the following steps (1) to (3): step (1) of mixing and emulsifying a releasing agent and a dispersion of resin particles (A) containing a polyester in an amount of not less than 90% by mass on the basis of a resin component in the resin particles (A) to obtain a dispersion of releasing agent particles; step (2) of mixing and aggregating the dispersion of the releasing agent particles obtained in the step (1) and a dispersion of resin particles (B) containing a polyester in an amount of not less than 90% by mass on the basis of a resin component in the resin particles (B) to obtain aggregated particles; and step (3) of coalescing the aggregated particles obtained in the step (2) to obtain coalesced particles, in which an acid component constituting the polyester in the resin particles (A) contains an aliphatic carboxylic acid; the resin particles (A) have a volume median particle size of not less than 0.02 μm and not more than 0.50 μm; and a content of a surfactant in the dispersion of the releasing agent particles is not more than 0.5 part by mass on the basis of 100 parts by mass of the releasing agent; a process for producing the dispersion of the releasing agent particles which includes the above step (1); and a kit for producing the dispersion of the releasing agent particles.

Abstract translation: 根据本发明，提供一种静电图像显影用调色剂的制造方法，其能够抑制脱模剂的解吸和曝光，并且具有优异的定影性，抑制调色剂云和耐久性; 分散体的制造方法和分散液的制造用试剂盒。 本发明涉及静电图像显影用调色剂的制造方法，该方法包括以下步骤（1）至（3）：将脱模剂和树脂颗粒（A）的分散体混合和乳化的步骤（1） 基于树脂颗粒（A）中的树脂成分，以不低于90质量％的量的聚酯以获得脱模剂颗粒的分散体; 步骤（2）将步骤（1）中获得的脱模剂颗粒的分散体和含有不少于90质量％的聚酯的树脂颗粒（B）的分散体基于 树脂颗粒（B）中的树脂组分以获得凝集颗粒; 和步骤（3），使在步骤（2）中获得的凝集颗粒聚结，得到在树脂颗粒（A）中构成聚酯的酸组分含有脂族羧酸的聚结颗粒; 树脂颗粒（A）的体积中值粒径不小于0.02μm且不大于0.50μm; 基于100质量份的脱模剂，脱模剂粒子的分散液中的表面活性剂的含量为0.5质量份以下。 包括上述步骤（1）的脱模剂颗粒分散体的制备方法; 以及用于制备脱模剂颗粒的分散体的试剂盒。