33results about How to "Prevent filming" patented technology

The invention provides a titanium dioxide external additive which is capable of being controlled stably, maintaining frictional charging amount, having less ambient variation, maintaining stable frictional charging performance, and which is free from abnormal images resulted from attachment of a toner to a photoreceptor that is generated while image developing and subjected to a surface modification treatment. The invention also provides an electrostatic charge images developing toner that is externally added with the external additive and an image forming method using the electrostatic charge images developing toner. The inventive external additive has the characteristic that particle surface of titanium dioxide having a water-soluble component of more than 0.2% is modified by the fluorosilane compound.

The invention provided a development roller development device, image forming apparatus, and method of manufacturing development roller can realize well development for a long time by inhibiting reduce of the depth of the convex-concave part after forming images for a long time. The development roller at least comprises a base unit (25a) a base recess (29a',29b') and a base projection (30') that are formed in a predetermined area of a circumference surface of the base unit; and a surface layer (25b) formed on the circumference surface of the base unit (25a) and having a recess (29a,29b) and aprojection (30). The surface hardness of the projection (30) is larger that the surface hardness of the recess (29a,29b).

There is provided a protective agent feeding member, which contains a core and a foam layer provided on an outer periphery of the core, in which the protective agent feeding member is in the shape of a roller, and the foam layer has a roughened surface and has a maximum height Ry of 400 mum to 1,630 mum.

The invention relates to an organic solderability protective agent, wherein an imidazole compound is selected as the main film-forming substance of the organic solderability protective agent, which improves the heat resistance of the organic copper coordination polymer film of a printed circuit board formed subsequently, It can meet the temperature required for lead-free soldering and reduce environmental pollution. After multiple reflow soldering treatments, the performance of the organic copper coordination polymer film is still very stable, which meets the needs of the PCB surface treatment production process. OSP solution As far as it is concerned, it is very stable, and the film formed on the surface of the PCB can effectively prevent copper from being oxidized for a certain period of time. At the same time, it maintains good solderability under lead-free reflow temperature soldering, and has excellent copper and gold options. sex. The printed circuit organic solderability protectant provided by the invention conforms to the progress and development of integrated circuit technology. In addition, the invention also relates to a method for preparing an organic copper coordination polymer film.

To provide an image-bearing member protecting agent which can achieve a sufficient protecting effect on the surface of an image-bearing member, prevention of filming on the image-bearing member, and prevention of smearing on a charging member, and to provide a protective layer forming device which can form an excellent protective layer for image-bearing member using the image-bearing member protecting agent. The image-bearing member protecting agent to be used for an image forming method or an image forming apparatus is characterized by comprising the following components: a hydrophobic organic compound (A); an inorganic lubricant (B); and inorganic fine particles (C), wherein each of the inorganic fine particles (C) has a specific surface area of 2.0 to 6.5 m<2> / g. The protective layer forming device 2 includes at least an image-bearing member protecting agent 21 and a protecting agent supply member 22, and supplies the image-bearing member protecting agent 21 to the surface of the image-bearing member 1 via the protecting agent supply member 22.

The present invention relates to a film formation method and a sputtering apparatus which suppress the formation of an inhomogeneous film at the start and end of film formation without providing a target moving mechanism. This sputtering apparatus generates inductively coupled plasma (22) by supplying high-frequency power (PR) to an antenna (20) installed in a vacuum vessel (2) into which gas (10) is introduced, and utilizing the plasma ( 22) With the target bias voltage (VT), the target (30) is sputtered to form a film on the substrate (12). At the start of film formation, high-frequency power (PR) is supplied to the antenna (20) to generate plasma (22), and then a target bias voltage (VT) is applied to the target (30) to start sputtering. At the end of the film, after the target bias voltage (VT) applied to the target (30) is stopped to stop sputtering, the high-frequency power (PR) supplied to the antenna (20) is stopped and the plasma (22) disappears .

The invention discloses a display panel, a manufacturing method thereof, and a display device. The display panel has a first display area and a second display area, the light transmittance of the first display area is greater than the light transmittance of the second display area, the display panel includes: a substrate; and a light emitting element layer, including a first electrode, located at the second A light-emitting structure on an electrode and a second electrode assembly located on the light-emitting structure, wherein the second electrode assembly includes: a light-transmitting electrode, at least partially located in the first display area; a light-transmitting block, located in the first display area, disposed on the transparent on the photoelectrode; and the second electrode, located in the second display area, and the material of the second electrode is separated from the material of the light-transmitting electrode. According to the display panel of the embodiment of the present invention, the material of the second electrode is repellent to the material of the light-transmitting block, which prevents the second electrode from forming a film in the region with the light-transmitting block, thereby accurately realizing the patterning of the second electrode , to prevent the second electrode from being formed in the first display area from affecting the light transmittance of the first display area.

The invention relates to a preparation method of nano-cellulose fiber dry powder, which comprises the following steps: 1) taking cellulose, pulverizing and drying to obtain cellulose raw material, which is ready for use; 2) mixing organic acid and alcohol to obtain a reaction liquid, and reacting The mass fraction of organic acid in the liquid is 20-30%. The reaction liquid is heated to 140-160° C., the cellulose raw material obtained in step 1) is added, kept warm and stirred; 3) After the cellulose raw material is fully destroyed and dispersed, the reaction system Carry out solid-liquid separation treatment to obtain reaction recovery liquid and solid powder, and after the solid powder is washed with alcohol, disperse into alcohol to obtain a solid powder dispersion; 4) Homogenize the solid powder dispersion obtained in step 3), Obtaining the nanocellulose fiber dispersion; 5) Evaporating to dryness the alcohol in the nanocellulose fiber dispersion in step 4) to obtain the nanocellulose fiber dry powder.

A developing device (4) includes a developing roller (10) that faces a drum (1), a supplying roller (11) that supplies the toner to the developing roller (10), and a toner container (15) for storing the toner. A toner layer forming roller (12) contacts the developing roller (10) and rotates in the same direction as the developing roller (10). A part of the toner is transferred from the developing roller (10) to the peripheral surface of the toner layer forming roller (12) to form a toner layer. The thickness of the toner layer on the toner layer forming roller (12) is regulated by a blade (13). According to the rotation of the toner layer forming roller (12), the toner layer is carried outside the toner container (15), where the toner layer is transferred to the peripheral surface of the developing roller (10).