摘要:
A release oil barrier layer is coated over the silicone rubber cushion layer of a toner fusing roll by means of a coating composition having a low VOC content and comprising an aqueous dispersion of a fluorocarbon polymer in particulate form and a water-dispersible polyurethane.
摘要:
An apparatus for enabling the uniform application of a layer of a coating composition to a tubular substrate includes a shaft, and upper and lower circular rim members of equal diameter that are concentrically attached to the shaft. A pneumatically inflatable tube disposed on each circular rim member has an outer diameter that is variable with changes in its internal pressure. A first flexible cylindrical sheet in contact with the inflatable tubes has parallel edges that form a first slit sufficiently wide to permit movement of the first sheet in response to pressure variation in the tubes. A second flexible cylindrical sheet surrounding the first cylindrical sheet has parallel edges that form a second slit sufficiently wide to permit movement of the second sheet also in response to pressure variation. The second slit is laterally displaced from the first slit, and the second cylindrical sheet has a diameter nearly equal to the specified diameter of the substrate. Each of the tubes is inflatable to a pressure sufficient to provide the substrate with a smooth cylindrical outer surface for uniform application of a coating.
摘要:
A fuser belt comprising in order a substrate comprising a high temperature thermoset polymer, an epoxy primer layer comprising an epoxy resin having the following structure: where R1 and R2 are each independently H or an alkyl group containing 1 to about 4 carbon atoms, and R3 and R4 are each independently H, F, or an alkyl group containing 1 to about 4 carbon atoms, Z is a carbonyl cross-linking group, and x is an integer from 1 to about 10 and said epoxy priming layer also comprising an anhydride crosslinking agent cyclic mono anhydride or dianhydride having the following structure: and mixture thereof where R is an alkyl group containing 6 to about 8 carbon atoms and a low surface energy polymeric release coating.
摘要:
A roller for use as a fusing roller or a pressure roller or a drying roller in a system for treating printed ink image-bearing substrates and a composition for coating the outside of the roller. The composition is a reaction product of a high molecular weight, reactive cross-linkable poly(dialkylsiloxane), a cross-linked poly(dialkylsiloxane) including a filler and a silane cross-linking agent.
摘要:
A method and apparatus in which a converting belt system belt is coated with a composition suitable for use with ink image-bearing substrates that require ink drying, fusing, or both for the ink image-bearing substrates to improve various durability and other properties of the ink image-bearing substrates.
摘要:
A roller composition for forming an outer coating on the roller. The composition includes an addition cure polysiloxane component and a high molecular weight reactive polyfunctional poly(alkylsiloxane) component. The coated roller is effective for drying and fusing ink images on a substrate.
摘要:
An apparatus for enabling the uniform application of a layer of a coating composition to a tubular substrate includes a shaft, and upper and lower circular rim members of equal diameter that are concentrically attached to the shaft. A pneumatically inflatable tube disposed on each circular rim member has an outer diameter that is variable with changes in its internal pressure. A first flexible cylindrical sheet in contact with the inflatable tubes has parallel edges that form a first slit sufficiently wide to permit movement of the first sheet in response to pressure variation in the tubes. A second flexible cylindrical sheet surrounding the first cylindrical sheet has parallel edges that form a second slit sufficiently wide to permit movement of the second sheet also in response to pressure variation. The second slit is laterally displaced from the first slit, and the second cylindrical sheet has a diameter nearly equal to the specified diameter of the substrate. Each of the tubes is inflatable to a pressure sufficient to provide the substrate with a smooth cylindrical outer surface for uniform application of a coating.
摘要:
This invention relates to an improved fusing station for fusing a toner image to a receiver when the fusing station includes a fuser roller having a hardness from about 50 to about 80 Shore A and an outside coating comprising a low damping fluorocarbon thermoplastic random copolymer roller coating formulation having a tan delta from about 0.01 to about 0.15 and containing from about 1.5 to about 2.5 parts per hundred (pph), based upon the weight of the copolymer of a curing agent having a bisphenol residue and a pressure roller having a smaller outer diameter than the fuser roller and positioned in pressure contact with the fuser roller to form a fusing nip between the pressure roller and the fuser roller. A method is also provided for fusing toner images to receiver sheets using the fusing station.
摘要:
A fusing station including an externally heated deformable fuser roller and a relatively harder pressure roller, the fuser roller including a heat distribution layer. A fuser roller embodiment includes a core member, a base cushion layer around the core member, a heat storage layer around the base cushion layer, a heat distribution layer around the heat storage layer, and a thin gloss control layer around the heat distribution layer. Ratios of thermal conductivity divided by thickness for the layers are, respectively: for the base cushion layer, less than approximately 13.3 BTU/hr/ft2/°F.; for the heat storage layer, approximately between 300 BTU/hr/ft2/°F.-1400 BTU/hr/ft2/°F.; for the heat distribution layer, approximately between 600 BTU/hr/ft2/°F.-4,800 BTU/hr/ft2/°F.; and, for the gloss control layer, approximately between 600 BTU/hr/ft2/°F.-6,000 BTU/hr/ft2/°F.
摘要翻译:定影台包括外部加热的可变形定影辊和相对较硬的压力辊,该定影辊包括散热层。 定影辊实施例包括芯构件,围绕芯构件的基垫缓冲层,围绕基垫层的储热层,储热层周围的散热层,以及分布层周围的薄光泽控制层。 导热系数除以层的厚度分别为:基底垫层小于约13.3BTU / hr / ft 2 /°F; 大约在300BTU / hr / ft 2 /°F-1400BTU / hr / ft 2 /°F之间的储热层。 大约在600BTU / hr / ft 2 /°F-4,800BTU / hr / ft 2 /°F之间的热分布层; 并且对于光泽度控制层,大约在600BTU / hr / ft 2 /°F-6,000BTU / hr / ft 2 /°F之间。