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1.发明授权Encapsulated toner for heat-and-pressure fixing and method for production thereof 失效用于热和固定的封装调色剂及其制造方法
公开(公告)号：US5536612A
公开(公告)日：1996-07-16
申请号：US206392
申请日：1994-03-07
CPC分类号： G03G9/09392 , G03G9/09364 , G03G9/09371
摘要： A method for producing an encapsulated toner for heat-and-pressure fixing, which has a heat-fusible core material containing at least a thermoplastic resin and a coloring agent and a shell formed thereon so as to cover the surface of the core material, having the steps of coating the surface of the core material with a hydrophilic shell-forming material to form precursor particles; adding at least a vinyl polymerizable monomer and an initiator for vinyl polymerization to an aqueous suspension of the precursor particles to absorb them into the precursor particles; and then polymerizing the monomer components in the precursor particles. The method of the present invention offers toners which not only have improved storage stability but also are excellent in offset resistance, fixable at a low temperature and are further capable of forming clear images free from background.
摘要翻译： 一种用于制造用于热和固定的包封调色剂的方法，其具有至少含有热塑性树脂和着色剂的热熔芯材料和形成在其上的外壳，以覆盖芯材表面，具有 用亲水成壳材料涂覆芯材表面以形成前体颗粒的步骤; 将乙烯基聚合的至少一种可聚合单体和乙烯基聚合引发剂加到前体颗粒的水悬浮液中以将它们吸收到前体颗粒中; 然后使前体颗粒中的单体组分聚合。 本发明的方法提供了不仅具有改善的储存稳定性而且耐偏移性优异的调色剂，并且可以在低温下固定，并且还能够形成无背景的清晰图像。
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2.发明授权Encapsulated toner for heat-and-pressure fixing and method for producing the same 失效用于热压定影的封装调色剂及其制造方法
公开(公告)号：US5571652A
公开(公告)日：1996-11-05
申请号：US291475
申请日：1994-08-17
IPC分类号： G03G9/093
CPC分类号： G03G9/09314 , G03G9/093 , G03G9/09328 , G03G9/09364 , G03G9/09392 , Y10S430/105
摘要： The encapsulated toner for heat-and-pressure fixing which includes a heat-fusible core material containing at least a thermoplastic resin and a coloring agent, and a shell formed thereon so as to cover the surface of the core material is produced by a process having the step of carrying out in situ polymerization using a thermoplastic resin as a main component of the shell to form a shell having a structure in which a part of the heat-fusible core material is incorporated therein, the thermoplastic resin having a mechanical loss tangent (tan .delta.) in the range of from 1.0 to 20.0 based on a dynamic viscoelasticity, when measured with a sine stress having an angular frequency of 25 rad/s at a temperature of from 80.degree. to 120.degree. C. By using the encapsulated toner, good offset resistance can be obtained in the resulting toner even when its fixing speed is slow. Also, the core material is likely to be released from the encapsulated toner upon fixing while retaining good blocking resistance and good shocking resistance.
摘要翻译： 包含至少含有热塑性树脂和着色剂的热熔核材料的热固定用包封调色剂和形成在其上的外壳以覆盖芯材表面的方法是通过具有 使用热塑性树脂作为壳的主要成分进行原位聚合的步骤，以形成其中结合有热熔芯材的一部分的结构的壳，所述热塑性树脂具有机械损耗角正切（ tanδ）在1.0至20.0的范围内，基于动态粘弹性，当在80至120℃的温度下用具有25rad / s的角频率的正弦应力测量时。通过使用包封的调色剂， 即使在定影速度慢的情况下，也可以在所得到的调色剂中获得良好的抗偏移性。 此外，芯材料在固定时可能从包封的调色剂中释放，同时保持良好的抗粘连性和良好的耐冲击性。
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3.发明授权Encapsulated toner for heat-and-pressure fixing and method for production thereof 失效用于热和固定的封装调色剂及其制造方法
公开(公告)号：US5733700A
公开(公告)日：1998-03-31
申请号：US784357
申请日：1997-01-17
申请人： Tetsuya Asano , Mitsuhiro Sasaki , Kuniyasu Kawabe
发明人： Tetsuya Asano , Mitsuhiro Sasaki , Kuniyasu Kawabe
CPC分类号： G03G9/09321
摘要： The present invention is directed to an encapsulated toner for heat-and-pressure fixing whose shell contains a copolymer having one or more acid anhydride groups as the main component. The encapsulated toner of the present invention has excellent offset resistance and fixing ability even at a low fixing temperature, and also it is excellent in blocking resistance. Further, since the resin having a negative charge is used as a shell material, clear images free from background contamination can be stably formed for a large number of copying.
摘要翻译： 本发明涉及一种用于热和固定的包封调色剂，其外壳含有一种或多种酸酐基作为主要成分的共聚物。 本发明的胶囊化调色剂即使在低定影温度下也具有优异的耐偏移性和定影能力，并且耐粘连性也优异。 此外，由于使用具有负电荷的树脂作为壳材料，因此可以稳定地形成没有背景污染物的清晰图像以进行大量的复印。
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4.发明授权Encapsulated toner for heat-and-pressure fixing and method for production thereof 失效用于热和固定的封装调色剂及其制造方法
公开(公告)号：US5763130A
公开(公告)日：1998-06-09
申请号：US595211
申请日：1996-02-01
CPC分类号： G03G9/08755 , G03G9/09328 , Y10S525/902
摘要： The present invention is directed to an encapsulated toner for heat-and-pressure fixing having a heat-fusible core material containing at least a thermoplastic resin and a coloring agent and a shell formed thereon so as to cover the surface of the core material. An amorphous polyester is used as the main component of the shell, and the amount of the amorphous polyester is normally 3 to 50 parts by weight, based on 100 parts by weight of the core material. The encapsulated toner of the present invention is excellent in offset resistance, fixable even at a low temperature and excellent in blocking resistance when it is used for heat-and-pressure fixing using a heat roller.
摘要翻译： 本发明涉及一种用于热固定的包封调色剂，其具有至少含有热塑性树脂和着色剂的热熔芯材料和形成在其上的外壳，以覆盖芯材表面。 使用无定形聚酯作为壳的主要成分，相对于芯材100重量份，无定形聚酯的用量通常为3〜50重量份。 本发明的胶囊化调色剂即使在低温下也具有优异的抗粘着性，并且在用于使用加热辊的热定影时具有优异的抗粘连性。
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5.发明授权Encapsulated toner for heat - and pressure - fixing and method for production thereof 失效用于加热和压力固定的封装调色剂及其制备方法
公开(公告)号：US5529876A
公开(公告)日：1996-06-25
申请号：US450007
申请日：1995-05-25
CPC分类号： G03G9/08755 , G03G9/09328 , Y10S525/902
摘要： The present invention is directed to an encapsulated toner for heat-and-pressure fixing having a heat-fusible core material containing at least a thermoplastic resin and a coloring agent and a shell formed thereon so as to cover the surface of the core material. An amorphous polyester is used as the main component of the shell, and the amount of the amorphous polyester is normally 3 to 50 parts by weight, based on 100 parts by weight of the core material. The encapsulated toner of the present invention is excellent in offset resistance, fixable even at a low temperature and excellent in blocking resistance when it is used for heat-and-pressure fixing using a heat roller.
摘要翻译： 本发明涉及一种用于热固定的包封调色剂，其具有至少含有热塑性树脂和着色剂的热熔芯材料和形成在其上的外壳，以覆盖芯材表面。 使用无定形聚酯作为壳的主要成分，相对于芯材100重量份，无定形聚酯的用量通常为3〜50重量份。 本发明的胶囊化调色剂即使在低温下也具有优异的抗粘着性，并且在用于使用加热辊的热定影时具有优异的耐粘连性。
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6.发明授权Encapsulated toner for heat-and-pressure fixing and method for producing the same 失效用于热压定影的封装调色剂及其制造方法
公开(公告)号：US5750304A
公开(公告)日：1998-05-12
申请号：US633211
申请日：1996-04-16
CPC分类号： G03G9/09328 , B01J13/18 , G03G9/09371 , G03G9/09392
摘要： The encapsulated toner for heat-and-pressure fixing including a heat-fusible core material containing at least a thermoplastic resin and a coloring agent and a shell comprising a hydrophilic resin formed thereon so as to cover the surface of the core material, wherein the core material contains a silicone oil having a kinematic viscosity of from 10 to 500 cSt at 25.degree. C., and wherein the encapsulated toner is obtainable by in situ polymerization method. Such an encapsulated toner can be produced by in situ polymerization method including the following steps (a)-(c): (a) dissolving an amorphous polyester in a mixture comprising a core material-constituting monomer, a polymerization initiator, a silicone oil, and a coloring agent; (b) dispersing the mixture obtained in step (a) in an aqueous dispersant, and localizing the amorphous polyester on the surface of droplets of a core-constituting material to give a polymerizable composition; and (c) polymerizing the polymerizable composition obtained in step (b) by in situ polymerization method to form a core material, wherein the core material is covered with a shell comprising the amorphous polyester, thereby giving an encapsulated toner.
摘要翻译： 用于热固定的包封调色剂包括至少含有热塑性树脂和着色剂的热熔芯材料和包含形成在其上的亲水性树脂以便覆盖芯材表面的外壳，其中芯体 材料含有在25℃下运动粘度为10-500cSt的硅油，其中包封的调色剂可通过原位聚合法获得。 这种包封的调色剂可以通过原位聚合法制备，包括以下步骤（a） - （c）：（a）将无定形聚酯溶解在包含芯材构成单体，聚合引发剂，硅油， 和着色剂; （b）将步骤（a）中获得的混合物分散在水分散剂中，并将非晶聚酯定位在芯构成材料的液滴的表面上，得到可聚合组合物; 和（c）通过原位聚合法聚合步骤（b）中获得的可聚合组合物以形成芯材，其中芯材被包含非晶聚酯的壳覆盖，由此得到包封的调色剂。
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公开(公告)号：US5229243A
公开(公告)日：1993-07-20
申请号：US833502
申请日：1992-02-11
申请人： Mitsuhiro Sasaki , Kuniyasu Kawabe
发明人： Mitsuhiro Sasaki , Kuniyasu Kawabe
CPC分类号： G03G9/09364 , G03G9/09328
摘要： A capsulated toner for heat pressure fixation comprising a heat-meltable core material and an outer shell, said core material containing a colorant and a thermoplastic resin as a major constituent, produced by copolymerizing (A) an .alpha.,.beta.-ethylenically copolymerizable monomer having an amino group and (B) .alpha.,.beta.-ethylenically copolymerizable monomer other than (A), said outer shell being provided so as to cover the surface of the core material. When the capsulated toner of the present invention is used, the dependency of the amount of electrification upon the environment is small because the electrification can be regulated from within the capsulated toner. Further, because the offset resistance in a heat pressure fixation system, such as a heat roller, is excellent, the fixation can be conducted at a low temperature. Further, the blocking resistance is so good that a clear image, free from fogging, can be stably formed over a plurality of uses.
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8.发明授权Developing method and method for forming fixed images using magnetic encapsulated toner 失效使用磁性封装调色剂形成固定图像的显影方法和方法
公开(公告)号：US5443936A
公开(公告)日：1995-08-22
申请号：US142081
申请日：1993-10-28
CPC分类号： G03G13/09 , G03G13/20 , G03G9/09328
摘要： The present invention is directed to a developing method of a magnetic encapsulated toner, which can be fixed even at a nip pressure of 0.01 to 0.1 kg/cm without a supply of silicone oil onto a surface of a heat roller, using a toner projection developing device. The fixing in the present invention is carried out at a temperature of not more than 120.degree. C. and at a nip pressure of 0.01 to 4 kg/cm. By using these methods, the miniaturization of the overall apparatus can be achieved.
摘要翻译： 本发明涉及磁性包封调色剂的显影方法，其即使在0.01至0.1kg / cm的压区压力下也可以固定，而不需要在加热辊的表面上供应硅油，使用调色剂投影显影 设备。 本发明的固定在不超过120℃，压区压力为0.01〜4kg / cm的温度下进行。 通过使用这些方法，可以实现整体装置的小型化。
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公开(公告)号：US5294490A
公开(公告)日：1994-03-15
申请号：US885968
申请日：1992-05-20
申请人： Mitsuhiro Sasaki , Kuniyasu Kawabe
发明人： Mitsuhiro Sasaki , Kuniyasu Kawabe
CPC分类号： G03G9/09328 , G03G9/09378 , Y10T428/249997 , Y10T428/2985 , Y10T428/2987 , Y10T428/31547
摘要： An encapsulated toner for heat-and-pressure fixing having excellent offset resistance and blocking resistance, being fixed at a low fixing temperature and being regulated with the charging properties thereof from the inside of the encapsulated toner to stably and repeatedly form a scum-free, clear image many times, comprised of a heat-fusible core containing at least a coloring material, a binder and an electric charge control agent selected from the group consisting of a positive electric charge control agent, a negative electric charge control agent and a mixture thereof at a weight ratio of one to the other ranging from 1:0 (exclusive) to 1:0.5, and a shell formed so as to cover the surface of the core, wherein the main component of the shell is a resin prepared by reacting (A) an iso(thio)cyanate compound comprising (1) 0 to 30 mole % of monovalent isocyanate and/or isothiocyanate compounds, and (2) 100 to 70 mole % of at least divalent isocyanate and/or isothiocyanate compounds, with (B) an active hydrogen compound comprising (3) 0 to 30 mole % of a compound having one active hydrogen atom reactive with isocyanate and/or isothiocyanate groups, and (4) 100 to 70 mole % of a compound having at least two active hydrogen atoms reactive with isocyanate and/or isothiocyanate groups, at a molar ratio of component (A) to component (B) of between 1:1 and 1:20, and wherein at least 30% of all of the linkages in which an isocyanate and/or isothiocyanate group participates are thermally dissociable linkages.
摘要翻译： 用于热和固定的胶粘调色剂具有优异的耐偏移性和抗粘连性，固定在低定影温度下并通过其从包封的调色剂内部的带电性能进行调节，以稳定且重复地形成无浮渣， 清除图像多次，包括至少含有着色材料的热熔芯，粘合剂和选自正电荷控制剂，负电荷控制剂及其混合物的电荷控制剂 以1：0（独占）至1：0.5的重量比为1：0，以及形成为覆盖芯的表面的外壳，其中壳的主要成分是通过使（ A）异（硫）氰酸酯化合物，其包含（1）0至30摩尔％的一价异氰酸酯和/或异硫氰酸酯化合物，和（2）100至70摩尔％的至少二价异氰酸酯和/或异硫氰酸酯化合物，w （B）活性氢化合物，其包含（3）0至30摩尔％的具有与异氰酸酯和/或异硫氰酸酯基团反应的一个活性氢原子的化合物，和（4）100至70摩尔％的具有至少两个 组分（A）与组分（B）的摩尔比在1:1至1:20之间，与异氰酸酯和/或异硫氰酸酯基反应的活性氢原子，其中至少30％ 异氰酸酯和/或异硫氰酸酯基团是热离解的键。
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10.发明授权Method of development of nonmagnetic one-component toner and method for forming fixed images using the development 失效开发非磁性单组分调色剂的方法和使用该方法形成固定图像的方法
公开(公告)号：US5604074A
公开(公告)日：1997-02-18
申请号：US432931
申请日：1995-05-01
CPC分类号： G03G13/08 , G03G9/093 , G03G9/09371 , G03G9/09392 , Y10S430/104
摘要： A developing method of the present invention has the steps of forming a uniform layer of a nonmagnetic one-component toner on a developer carrying sleeve with a developer blade; rotating an electrostatic latent image forming member and the developer carrying sleeve; and applying the toner on the developer carrying sleeve onto an electrostatic latent image formed on the electrostatic latent image forming member. The toner used herein is an encapsulated toner having a heat-fusible core material and a shell formed thereon. By using this development for a nonmagnetic one-component toner of the present invention, clear images free from background can be stably formed for a large number of copying.
摘要翻译： 本发明的显影方法具有以下步骤：在具有显影剂叶片的显影剂承载套筒上形成均匀的非磁性单组分调色剂层; 旋转静电潜像形成构件和显影剂承载套筒; 以及将显影剂承载套筒上的调色剂施加到形成在静电潜像形成构件上的静电潜像上。 本文使用的调色剂是其上形成有热熔芯材料和壳体的包封调色剂。 通过使用本发明的非磁性单组分调色剂的这种显影，可以稳定地形成无背景的清晰图像以进行大量的复印。
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