摘要:
A toner capable of making compatible a transferring property, a fixing property and a cleaning property and forming a high-precision image. The toner comprises a binder resin and a colorant and is characterized in that the average circularity of the toner is at least 0.95, a ratio (D/S) between the total projection area (S) and the contact area (D) of the toner is 15% to 40%, and the contact area (D) is a total contact area between the toner and an object surface. The toner has such a shape as to be able to contact a latent image carrier with a proper contact area, has a high transferring rate and can prevent transferring dust.
摘要:
Provided is a resin particle comprising a resin (a) and a filler (b) contained in the particle; the particle has a volume average particle diameter of from 0.1 to 300 μm and a shape factor of from 110 to 300; the particle has an outer shell layer (S) comprising at least a portion of the filler (b); the layer (S) is at least 0.01 μm thick and has a thickness that is ½ or less of the maximum inscribed circle radius of the particle cross section. When used as a toner resin, it is excellent in blade cleaning properties and wide in the fixation temperature range; when employed as a paint additive or a cosmetics additive, it is excellent in masking properties; when used as paper coating additive, it is excellent in ink retention; when utilized as an abrasive, it is excellent in abrasion.
摘要:
A toner capable of making compatible a transferring property, a fixing property and a cleaning property and forming a high-precision image. The toner comprises a binder resin and a colorant and is characterized in that the average circularity of the toner is at least 0.95, a ratio (D/S) between the total projection area (S) and the contact area (D) of the toner is 15% to 40%, and the contact area (D) is a total contact area between the toner and an object surface. The toner has such a shape as to be able to contact a latent image carrier with a proper contact area, has a high transferring rate and can prevent transferring dust.
摘要:
Provided is a resin particle comprising a resin (a) and a filler (b) contained in the particle; the particle has a volume average particle diameter of from 0.1 to 300 μm and a shape factor of from 110 to 300; the particle has an outer shell layer (S) comprising at least a portion of the filler (b); the layer (S) is at least 0.01 μm thick and has a thickness that is ½ or less of the maximum inscribed circle radius of the particle cross section. When used as a toner resin, it is excellent in blade cleaning properties and wide in the fixation temperature range; when employed as a paint additive or a cosmetics additive, it is excellent in masking properties; when used as paper coating additive, it is excellent in ink retention; when utilized as an abrasive, it is excellent in abrasion.
摘要:
Disclosed is a heat-fusible electrostatic image developing toner which has an excellent balance between fixability at low temperatures and grindability and is excellent in glossiness after fixing. Also disclosed is a resin for toners.A polyester resin for toners which is obtained by polycondensing a polyol component and a polycarboxylic acid component is characterized by containing 20-100 weight % of one or more polyester resins (A1) having a storage elastic modulus from 2.5×103 Pa to 5×106 Pa at 150° C. wherein the molar average cohesive energy of the polyol component is between 7.0×104 and 1.4×105 J.
摘要翻译:本发明公开了一种热固性静电显影调色剂,其在低温下的定影性和可磨性之间具有优异的平衡性,并且在定影后的光泽度优异。 还公开了一种用于调色剂的树脂。 通过使多元醇成分和多元羧酸成分缩聚而得到的调色剂用聚酯树脂的特征在于,含有20-100重量%的一种或多种聚酯树脂(A1),其储能弹性模量为2.5×10 3 Pa〜5×10 6 Pa,其中多元醇组分的摩尔平均内聚能为7.0×10 4和1.4×10 5 J.
摘要:
Disclosed is a heat-fusible electrostatic image developing toner which has an excellent balance between fixability at low temperatures and grindability and is excellent in glossiness after fixing. Also disclosed is a resin for toners. A polyester resin for toners which is obtained by polycondensing a polyol component and a polycarboxylic acid component is characterized by containing 20-100 weight % of one or more polyester resins (A1) having a storage elastic modulus from 2.5×103 Pa to 5×106 Pa at 150° C. wherein the molar average cohesive energy of the polyol component is between 7.0×104 and 1.4×105 J.
摘要翻译:本发明公开了一种热固性静电显影调色剂,其在低温下的定影性和可磨性之间具有优异的平衡性,并且在定影后的光泽度优异。 还公开了一种用于调色剂的树脂。 通过使多元醇成分和多元羧酸成分缩聚而得到的调色剂用聚酯树脂的特征在于,含有20-100重量%的一种或多种聚酯树脂(A1),其储能弹性模量为2.5×10 3 Pa〜5×10 6 Pa,其中多元醇组分的摩尔平均内聚能为7.0×10 4和1.4×10 5 J.
摘要:
[Problems]Disclosed is a heat-fusible electrostatic image developing toner which has an excellent balance between fixability at low temperatures and grindability and is excellent in glossiness after fixing. Also disclosed is a resin for toners.[Means for Solving Problems]A polyester resin for toners which is obtained by polycondensing a polyol component and a polycarboxylic acid component is characterized by containing 20-100 weight % of one or more polyester resins (A1) having a storage elastic modulus from 2.5×103 Pa to 5×106 Pa at 150° C. wherein the molar average cohesive energy of the polyol component is between 7.0×104 and 1.4×105 J.
摘要翻译:[问题]公开了一种热固性静电图像显影调色剂,其在低温下的定影性和可磨性之间具有优异的平衡性,并且在定影后的光泽度优异。 还公开了一种用于调色剂的树脂。 解决问题的方法通过使多元醇成分和多元羧酸成分缩聚得到的调色剂用聚酯树脂的特征在于,含有20-100重量%的一种或多种聚酯树脂(A1),其储能弹性模量为2.5× 在150℃下为103Pa至5×106Pa,其中多元醇组分的摩尔平均内聚能为7.0×10 4至1.4×10 5 J.
摘要:
[PROBLEMS] Disclosed is a heat-fusible electrostatic image developing toner which has an excellent balance between fixability at low temperatures and grindability and is excellent in glossiness after fixing. Also disclosed is a resin for toners. [MEANS FOR SOLVING PROBLEMS] A polyester resin for toners which is obtained by polycondensing a polyol component and a polycarboxylic acid component is characterized by containing 20-100 weight % of one or more polyester resins (A1) having a storage elastic modulus from 2.5×103 Pa to 5×106 Pa at 150° C. wherein the molar average cohesive energy of the polyol component is between 7.0×104 and 1.4×105 J.
摘要翻译:本发明公开了一种热固性静电显影调色剂,其在低温下的定影性和可磨性之间具有优异的平衡性,并且在定影后的光泽度优异。 还公开了一种用于调色剂的树脂。 解决问题的手段通过使多元醇成分和多元羧酸成分缩聚得到的调色剂用聚酯树脂的特征在于,含有20-100重量%的一种或多种聚酯树脂(A1),其具有的储能弹性模量为2.5×10 在150℃下,Pa至5×10 6 Pa,其中多元醇组分的摩尔平均内聚能为7.0×10 4〜1.4×10 4 Pa 5。
摘要:
The present invention concerns a method for producing an aqueous dispersion (X1), the method including a step that includes mixing an aqueous dispersion liquid (W) of resin particles (A) comprising a resin (a) with a precursor (b0) of a resin (b) or an oily liquid (OL) comprising the precursor (b0) and an organic solvent to disperse the precursor (b0) or the oily liquid (OL) in the aqueous dispersion liquid (W), followed by causing the precursor (b0) to react in the aqueous dispersion liquid (W) to form resin particles (B) comprising the resin (b), thereby obtaining the aqueous dispersion (X1) of resin particles (C) having a structure where resin particles (A) are adhered on the surface of the resin particles (B), wherein at least one of the resin (a) and the resin (b) contains a polyester resin (p1) formed in the presence of a specific titanium catalyst (t) or a resin (p2) having the polyester resin (p1) as a constituent unit.
摘要:
The present invention concerns a method for producing an aqueous dispersion (X1), the method including a step that includes mixing an aqueous dispersion liquid (W) of resin particles (A) comprising a resin (a) with a precursor (b0) of a resin (b) or an oily liquid (OL) comprising the precursor (b0) and an organic solvent to disperse the precursor (b0) or the oily liquid (OL) in the aqueous dispersion liquid (W), followed by causing the precursor (b0) to react in the aqueous dispersion liquid (W) to form resin particles (B) comprising the resin (b), thereby obtaining the aqueous dispersion (X1) of resin particles (C) having a structure where resin particles (A) are adhered on the surface of the resin particles (B), wherein at least one of the resin (a) and the resin (b) contains a polyester resin (p1) formed in the presence of a specific titanium catalyst (t) or a resin (p2) having the polyester resin (p1) as a constituent unit.