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1. (WO2019065796) LIQUID DEVELOPER AND METHOD FOR MANUFACTURING SAME
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Pub. No.: WO/2019/065796 International Application No.: PCT/JP2018/035833
Publication Date: 04.04.2019 International Filing Date: 27.09.2018
IPC:
G03G 9/13 (2006.01) ,G03G 9/12 (2006.01) ,G03G 9/125 (2006.01) ,G03G 9/135 (2006.01)
G PHYSICS
03
PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
G
ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
9
Developers
08
with toner particles
12
in liquid developer mixtures
13
characterised by polymer components
G PHYSICS
03
PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
G
ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
9
Developers
08
with toner particles
12
in liquid developer mixtures
G PHYSICS
03
PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
G
ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
9
Developers
08
with toner particles
12
in liquid developer mixtures
125
characterised by the liquid
G PHYSICS
03
PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
G
ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
9
Developers
08
with toner particles
12
in liquid developer mixtures
135
characterised by stabiliser or charge-controlling agents
Applicants:
キヤノン株式会社 CANON KABUSHIKI KAISHA [JP/JP]; 東京都大田区下丸子3丁目30番2号 30-2, Shimomaruko 3-chome, Ohta-ku, Tokyo 1468501, JP
Inventors:
長谷川 和香 HASEGAWA, Waka; JP
名取 良 NATORI, Ryo; JP
増田 彩乃 MASHIDA, Ayano; JP
伊藤 淳二 ITO, Junji; JP
愛知 靖浩 AICHI, Yasuhiro; JP
白川 潤 SHIRAKAWA, Jun; JP
Agent:
丹羽 武司 NIWA, Takeshi; JP
中村 剛 NAKAMURA, Go; JP
坂井 浩一郎 SAKAI, Koichiro; JP
森廣 亮太 MORIHIRO, Ryota; JP
川口 嘉之 KAWAGUCHI, Yoshiyuki; JP
Priority Data:
2017-18825828.09.2017JP
2018-16633705.09.2018JP
Title (EN) LIQUID DEVELOPER AND METHOD FOR MANUFACTURING SAME
(FR) RÉVÉLATEUR LIQUIDE ET SON PROCÉDÉ DE FABRICATION
(JA) 液体現像剤及び該液体現像剤の製造方法
Abstract:
(EN) Provided is a liquid developer the volume resistivity of which is high, the grain size of toner particles in which is small, and which excels in dispersion stability of the toner particles. A liquid developer containing a carrier liquid the SP value of which is 8.20 or smaller, toner particles insoluble in the carrier liquid and a toner particle dispersant, the liquid developer characterized in that the toner particles contain polyester resin having an acid value of 5-50 mg KOH/g inclusive, the number-average molecular weight of the polyester resin is 3,500-20,000 inclusive, and the toner particle dispersant is a polymer having a primary amino group, the amine value of the polymer having the primary amino group being 30-200 mg KOH/g inclusive, the ratio of the total number of acid groups of the polyester resin to the total number of amino groups of the polymer having the primary amino group being 1.0-10.0 inclusive.
(FR) L'invention concerne un révélateur liquide dont la résistivité volumique est élevée, dans lequel la granulométrie des particules de toner est faible, et qui présente une excellente stabilité de dispersion des particules de toner. L'invention concerne un révélateur liquide contenant un liquide porteur dont la valeur SP est inférieure ou égale à 8,20, des particules de toner insolubles dans le liquide porteur et un dispersant de particules de toner, le révélateur liquide étant caractérisé en ce que les particules de toner contiennent une résine de polyester ayant un indice d'acide de 5 à 50 mg inclus de KOH/g, le poids moléculaire moyen en nombre de la résine de polyester est de 3 500 à 20 000 inclus, et le dispersant de particules de toner est un polymère ayant un groupe amino primaire, l'indice d'amine du polymère ayant le groupe amino primaire étant de 30 à 200 mg inclus de KOH/g, le rapport du nombre total de groupes acides de la résine de polyester au nombre total de groupes amino du polymère ayant le groupe amino primaire étant de 1,0 à 10,0 inclus.
(JA) 液体現像剤の体積抵抗率が高く、液体現像剤中のトナー粒子の粒径が小さく、該トナー粒子の分散安定性に優れた液体現像剤を提供すること。 SP値が8.20以下であるキャリア液体、該キャリア液体に不溶なトナー粒子、及びトナー粒子分散剤を含有する液体現像剤であって、該トナー粒子が、酸価5mgKOH/g以上50mgKOH/g以下のポリエステル樹脂を含有し、該ポリエステル樹脂の数平均分子量が3500以上20000以下であり、該トナー粒子分散剤が、1級アミノ基を有するポリマーであり、該1級アミノ基を有するポリマーのアミン価が30mgKOH/g以上200mgKOH/g以下であり、該1級アミノ基を有するポリマーのアミノ基の総数に対する、該ポリエステル樹脂の酸基の総数の比が1.0以上10.0以下であることを特徴とする液体現像剤。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)