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    • 2. 发明专利
    • Manufacturing method of toner resin and toner
    • 聚碳酸酯和碳粉的制造方法
    • JP2012220661A
    • 2012-11-12
    • JP2011085318
    • 2011-04-07
    • Canon Incキヤノン株式会社
    • YOSHIBA DAISUKEYAMAZAKI KATSUHISAMORIBE SHUHEITAKAHASHI TORUTSUJIMOTO DAISUKEFUJIMOTO MASAMI
    • G03G9/087
    • PROBLEM TO BE SOLVED: To provide a manufacturing method of a toner resin by which the dispersion of a grain size in the pulverization step at the time of manufacturing the toner is suppressed and the toner can be obtained in which a low temperature fixing performance and a hot offset resistance performance are compatible at the time of making the toner.SOLUTION: The manufacturing method of a toner resin for manufacturing the toner resin by melting and kneading a resin (A) having an unsaturation polyester unit and a resin composition (B) containing a polymerization initiator and performing a crosslinking reaction at the time of the melting and the kneading. The resin composition (B) containing the polymerization initiator includes a polymerization initiator (b-1) and a saturation polyester resin (b-2) having a peak temperature of the maximum endothermic peak of not less than 50°C nor more than 130°C in a DSC curved line measured by a differential scan calorimeter (DSC).
    • 要解决的问题:提供一种调色剂树脂的制造方法,通过该方法可以抑制制造调色剂时的粉碎步骤中的粒度分散,并且可以获得调色剂,其中低温定影 在制造调色剂时性能和耐热偏移性能是兼容的。 解决方案:通过熔融捏合具有不饱和聚酯单元的树脂(A)和含有聚合引发剂的树脂组合物(B)并在此时进行交联反应来制造调色剂树脂的调色剂树脂的制造方法 的熔化和揉搓。 含有聚合引发剂的树脂组合物(B)包括具有最大吸热峰的峰值温度为50℃以上且130℃以下的聚合引发剂(b-1)和饱和聚酯树脂(b-2) C通过差示扫描量热计(DSC)测量的DSC曲线。 版权所有(C)2013,JPO&INPIT
    • 3. 发明专利
    • toner
    • 碳粉
    • JP2012159700A
    • 2012-08-23
    • JP2011019507
    • 2011-02-01
    • Canon Incキヤノン株式会社
    • TAKENAKA KOJIKOBORI NAOKUNIYAMAZAKI KATSUHISATAYA MASAAKI
    • G03G9/08G03G9/087
    • PROBLEM TO BE SOLVED: To provide a toner generating neither conventional oozing-out of a mold release agent nor conventional blooming and thus causing no density decrease due to contamination of the mold release agent of a toner carrier even if a toner improved in fixing property at low temperatures is stored for a long period of time under in a severe environment.SOLUTION: A toner contains has toner particles containing at least a binder resin, a mold release agent, and a colorant. In a DSC curve measured by a differential scanning calorimeter, the binder resin has a first endothermic peak at a temperature of 55°C to 75°C and a second endothermic peak at a temperature of 80°C to 120°C, and the mold release agent has at least one endothermic peak. The first endothermic peak temperature P1 (°C) and the second endothermic peak temperature P2 (°C) of the binder resin and the endothermic peak temperature Pwax (°C) of the mold release agent satisfy the following relational expressions (1) and (2): P1+5≤Pwax≤P1+30 (1) and P2-45≤Pwax≤P2-5 (2).
    • 要解决的问题:为了提供既不常规渗出脱模剂也不产生常规起霜的调色剂,因此即使调色剂改进了调色剂,也不会由于调色剂载体的脱模剂的污染而导致密度降低 低温下的定影性能在恶劣的环境下长时间储存​​。 调色剂含有至少含有粘合剂树脂,脱模剂和着色剂的调色剂颗粒。 在通过差示扫描量热计测定的DSC曲线中,粘合剂树脂在55℃至75℃的温度下具有第一吸热峰,在80℃至120℃的温度下具有第二吸热峰,并且模具 脱模剂具有至少一个吸热峰。 粘合剂树脂的第一吸热峰温度P1(℃)和第二吸热峰温度P2(℃)和脱模剂的吸热峰温度Pwax(℃)满足以下关系式(1)和( 2):P1 +5≤Pwax≤P1+ 30(1)和P2-45≤Pwax≤P2-5(2)。 版权所有(C)2012,JPO&INPIT
    • 4. 发明专利
    • Toner
    • 碳粉
    • JP2012150467A
    • 2012-08-09
    • JP2011288796
    • 2011-12-28
    • Canon Incキヤノン株式会社
    • YAMAZAKI KATSUHISAMORIBE SHUHEIYOSHIBA DAISUKETAKAHASHI TORUTSUJIMOTO DAISUKEFUJIMOTO MASAMI
    • G03G9/087
    • G03G9/087G03G9/0821G03G9/08755G03G9/08795G03G9/08797
    • PROBLEM TO BE SOLVED: To provide a toner having good low-temperature fixability without affecting the long-term storage stability.SOLUTION: A toner is characterized in that: in a DSC curve measured by a differential scanning calorimeter, the glass transition temperature is 50°C or more and 60°C or less; for a resin composition in the toner, the difference between the baseline and Heat Flow in a region over a temperature of 40°C and the glass transition temperature is 0.060 W/g or more; in a viscoelastic characteristic measured at a frequency of 6.28 rad/sec, the storage elastic modulus (G'40) at a temperature of 40°C is 7.0×10Pa or more and 2.0×10Pa or less; and the storage elastic modulus (G'70) at a temperature of 70°C is 1.0×10Pa or more and 1.0×10Pa or less.
    • 要解决的问题:提供具有良好的低温定影性的调色剂,而不影响长期的储存稳定性。 解决方案:调色剂的特征在于:在通过差示扫描量热计测量的DSC曲线中,玻璃化转变温度为50℃以上且60℃以下; 对于调色剂中的树脂组合物,在40℃的温度和玻璃化转变温度的区域中的基线和热流之间的差为0.060W / g以上; 在6.28rad / sec的频率下测定的粘弹性特性中,在40℃的温度下的储能弹性模量(G'40)为7.0×10 Pa以上 和2.0×10 9 Pa以下; 在70℃的温度下的储能弹性模量(G'70)为1.0×10 Pa以上且1.0×10 7 Pa以下。 版权所有(C)2012,JPO&INPIT
    • 5. 发明专利
    • Toner and image forming method
    • 调色剂和图像形成方法
    • JP2010032596A
    • 2010-02-12
    • JP2008191950
    • 2008-07-25
    • Canon Incキヤノン株式会社
    • MORIBE SHUHEIYAMAZAKI KATSUHISAYOSHIBA DAISUKETAKAHASHI TORUFUJIMOTO MASAMI
    • G03G5/08G03G9/08
    • PROBLEM TO BE SOLVED: To provide toner and an image forming method satisfying performance such as high image quality even for quick printing, while preventing density variation or image defects due to the degradation of the toner. SOLUTION: A photoreceptor is used, having at least a photoconductive layer and a surface layer formed of hydrogenated amorphous silicon carbide sequentially layered, wherein the sum of atomic densities of silicon atoms and carbon atoms in the surface layer of the photoreceptor is not less than 6.60×10 22 atoms/cm 3 . The toner includes toner particles containing at least a binder resin and a colorant, and an inorganic fine powder, and the toner shows Martens hardness of from 1.0 N/mm 2 to 200.0 N/mm 2 measured under 9.8×10 -4 N load by a micro-compression testing machine. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:为了提供即使对于快速打印也能满足诸如高图像质量等性能的调色剂和图像形成方法,同时防止由于调色剂劣化引起的浓度变化或图像缺陷。 解决方案:使用感光体,其至少具有光电导层和由顺序层叠的氢化非晶碳化硅形成的表面层,其中感光体表面层中硅原子和碳原子的原子密度之和不是 小于6.60×10 原子/ cm 3 / SP>。 调色剂包括至少含有粘合剂树脂和着色剂的调色剂颗粒和无机细粉末,并且调色剂的马氏体硬度为1.0N / mm 2至200.0N / mm 2 通过微压缩试验机在9.8×10 -4 N下测量。 版权所有(C)2010,JPO&INPIT
    • 6. 发明专利
    • Image forming method
    • 图像形成方法
    • JP2009205048A
    • 2009-09-10
    • JP2008049278
    • 2008-02-29
    • Canon Incキヤノン株式会社
    • YAMAZAKI KATSUHISAMORIBE SHUHEIYOSHIBA DAISUKEFUJIMOTO MASAMI
    • G03G15/08G03G9/08G03G9/083G03G9/097
    • PROBLEM TO BE SOLVED: To provide an image forming method capable of forming a stable toner coat layer even in use of substances upon high-speed printing irrespective of image printing ratio. SOLUTION: In the image forming method, which forms a toner image by charging an electrostatic charge image carrier 101 for carrying a charge image, forming an electrostatic charge image on the charged electrostatic charge image carrier, and developing the electrostatic charge image by using a toner on a developing sleeve 102, the developing sleeve is coated with an Ni plating layer containing a metal element of electronegativity of ≥2.00, at least on the uppermost surface of the sleeve, the toner contains at least a binder resin and magnet, the charging amount distribution of the toner has a peak in the range of ≥20.0 to ≤35.0 mC/kg as absolute value in an environment of temperature 23°C and relative humidity 50%, the standard deviation of the distribution is ≥20.0 and the presence amount of the toner charged with reverse polarity in the environment is ≤2.0 number%. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供即使在高速打印时使用物质也能够形成稳定的调色剂涂层的图像形成方法,而与图像打印率无关。 解决方案:在图像形成方法中,其通过对静电荷图像载体101充电以携带电荷图像形成调色剂图像,在充电的静电电荷图像载体上形成静电荷图像,并通过 在显影套筒102上使用调色剂,显影套筒至少在套筒的最上表面上涂覆有含有≥2.00的电负性金属元素的Ni镀层,调色剂至少含有粘合剂树脂和磁体, 调色剂的带电量分布在温度23℃,相对湿度50%的环境下,以≥20.0〜≤35.0mC/ kg的范围内的峰值为绝对值,分布的标准偏差为≥20.0, 在环境中以相反极性充电的调色剂的存在量为≤2.0数量%。 版权所有(C)2009,JPO&INPIT
    • 7. 发明专利
    • Image forming method
    • 图像形成方法
    • JP2009205034A
    • 2009-09-10
    • JP2008049174
    • 2008-02-29
    • Canon Incキヤノン株式会社
    • MORIBE SHUHEIYAMAZAKI KATSUHISAYOSHIBA DAISUKEFUJIMOTO MASAMI
    • G03G15/08
    • PROBLEM TO BE SOLVED: To provide an image forming method by which scattering of fine toner is prevented even in long-term use and demands for high definition and high image quality is sufficiently satisfied. SOLUTION: In the image forming method in which an electrostatic-charged-image carrier 101 for carrying an electrostatic charged image is charged, and an electrostatic charged image is formed on the charged carrier and then developed with toner on a developing sleeve 102, at least the outermost face of the developing sleeve is covered with an Ni plate containing Tungsten W, the toner contains at least magnetic substance in the range of 20.0 mass% to 60.0 mass%, and the magnetic substance contains Mg in the range of 0.20 mass% to 3.00 mass%. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:为了提供即使在长期使用中也能防止细调色剂的散射的图像形成方法,并且对于高清晰度和高图像质量的要求被充分满足。 解决方案:在用于承载静电荷图像的静电充电图像载体101被充电并且在带电载体上形成静电荷图像然后用调色剂显影在显影套筒102上的图像形成方法中 至少显影套筒的最外面被含有钨钨的Ni板覆盖,调色剂至少含有20.0质量%至60.0质量%的磁性物质,并且磁性物质含有在0.20范围内的Mg 质量%〜3.00质量%。 版权所有(C)2009,JPO&INPIT
    • 8. 发明专利
    • toner
    • 碳粉
    • JP2008145489A
    • 2008-06-26
    • JP2006329236
    • 2006-12-06
    • Canon Incキヤノン株式会社
    • YOSHIBA DAISUKEYAMAZAKI KATSUHISAMORIBE SHUHEINISHIYAMA JUNKOFUJIMOTO MASAMI
    • G03G9/08
    • PROBLEM TO BE SOLVED: To provide toner that can prevent scratches on a photoreceptor surface even for such usage requiring response to fast operation and production stability more than conventional toners and that can stably give high picture quality for a long period of time without depending on the environment. SOLUTION: The toner comprises toner particles containing at least a binder resin and a colorant, and alumina fine power and is characterized in that: the alumina fine power has a total pore volume of 0.200 cm 3 /g or less of pores measured in a range from 1.7 nm to 300.0 nm pore diameters; and in the measurement of CuKα characteristic X-ray diffraction of the alumina fine power, a value Ic calculated by formula (1):Ic=Ib/(Ia+Ib) ranges from 0.20 to 1.00, wherein Ia represents the maximum intensity in a Bragg angle 2θ from 25.0 to 26.0 degrees and Ib represents the maximum intensity in a Bragg angle range 2θ from 32.0 to 33.0 degrees. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了提供能够防止感光体表面上的划痕的调色剂,即使对于需要响应于常规调色剂的快速操作和生产稳定性的这种使用,并且可以长时间稳定地提供高图像质量而没有 取决于环境。 调色剂包括至少含有粘合剂树脂和着色剂的调色剂颗粒和氧化铝细粉,其特征在于:氧化铝细粉的总孔体积为0.200cm 3 / SP> / g以下的孔径在1.7nm〜300.0nm的范围内测定; 在氧化铝精细度的CuKα特征X射线衍射测定中,由式(1)计算出的Ic值为Ic = Ib /(Ia + Ib)的范围为0.20〜1.00,其中Ia表示 布拉格角2θ为25.0〜26.0度,Ib为从32.0〜33.0度的布拉格角范围2θ的最大强度。 版权所有(C)2008,JPO&INPIT
    • 9. 发明专利
    • Toner
    • 碳粉
    • JP2007065633A
    • 2007-03-15
    • JP2006206872
    • 2006-07-28
    • Canon Incキヤノン株式会社
    • YAMAZAKI KATSUHISAFUJIMOTO MASAMIHIROKO SHUICHITAYA MASAAKI
    • G03G9/087
    • PROBLEM TO BE SOLVED: To provide a toner which enables low-temperature fixation, is excellent in offset resistance and storage stability, stably provides high image quality even when the toner is used at a high humidity or a low humidity, and does not cause any image failure with time. SOLUTION: The toner includes a binder resin and a colorant, in which the binder resin contains a polyester unit and a vinyl copolymer unit; a main peak MpA is present in the molecular weight region of 2,000 to 7,000 in a molecular weight distribution measured by means of gel permeation chromatography (GPC) of a specific tetrahydrofuran (THF) soluble fraction A measured by a specific method; a main peak MpB is present in the molecular weight region of 5,000 to 10,000 in a molecular weight distribution measured by means of GPC of a specific THF soluble fraction B which contains a component of a molecular weight region of 100,000 or less in range from 70 to 100 mass%, and the peak molecular weight MpA of the THF soluble fraction A and the peak molecular weight MpB of the THF soluble fraction B satisfy a specific equation. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:为了提供能够进行低温定影的调色剂,具有优异的耐偏移性和储存稳定性,即使当调色剂在高湿度或低湿度下使用时也能稳定地提供高图像质量,并且 不会随时间导致图像故障。 调色剂包括粘合剂树脂和着色剂,其中粘合剂树脂含有聚酯单元和乙烯基共聚物单元; 在通过特定四氢呋喃(THF)可溶部分A的特定方法测定的凝胶渗透色谱法(GPC)测定的分子量分布中,主峰MpA存在于2,000〜7000的分子量范围内; 主峰MpB存在于5000至10,000的分子量区域中,分子量分布通过GPC测量,该分子量分布通过特定THF可溶组分B测量,该分子量分布含有分子量范围为100,000或更小的组分,范围为70至 100质量%,THF可溶组分A的峰分子量MpA和THF可溶组分B的峰分子量MpB满足特定方程式。 版权所有(C)2007,JPO&INPIT
    • 10. 发明专利
    • Toner
    • 碳粉
    • JP2005134891A
    • 2005-05-26
    • JP2004292292
    • 2004-10-05
    • Canon Incキヤノン株式会社
    • YAMAZAKI KATSUHISAFUJIMOTO MASAMITAYA MASAAKI
    • G03G9/087G03G9/083
    • PROBLEM TO BE SOLVED: To provide a toner which can be fixed at low temperature, which has excellent offset resistance, which stably gives an image with high image quality even when used under high humidity or low humidity conditions, and which induces no image defect over time. SOLUTION: The toner containing at least a binder resin and a colorant is characterized in that: the binder resin in the toner contains ≥60 mass% of styrene-acrylic resin; in the toner, the binder resin contains a THF-insoluble fraction (A) which is an extract residue obtained by carrying out Soxhlet extraction with tetrahydrofuran (THF) for 16 hours; the THF-insoluble fraction (A) contains a TOL-insoluble fraction (B) which is an extract residue obtained by carrying out Soxhlet extraction with toluene (TOL) for 16 hours; and the mass ratio of the TOL-insoluble fraction (B) to the THF-insoluble fraction (A) is in the range of 0.1≤B/A≤0.5. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:为了提供可以在低温下固定的调色剂,其具有优异的抗偏移性,即使在高湿度或低湿度条件下使用也能稳定地提供具有高图像质量的图像,并且不引起 图像缺陷随时间变化。 包含至少粘合剂树脂和着色剂的调色剂的特征在于:调色剂中的粘合剂树脂含有≥60质量%的苯乙烯 - 丙烯酸树脂; 在调色剂中,粘合剂树脂含有通过用四氢呋喃(THF)进行索格利特萃取16小时获得的提取物残渣的THF不溶性部分(A) THF不溶级分(A)含有TOL不溶级分(B),它是通过用甲苯(TOL)进行索格利特提取16小时获得的提取物残渣; TOL不溶成分(B)与THF不溶成分(A)的质量比在0.1≤B/A≤0.5的范围内。 版权所有(C)2005,JPO&NCIPI