221results about How to "Reduce blemishes" patented technology

A method of forming substantially spherical ceramic beads that includes conveying an aqueous ceramic slurry to a nozzle tip that is immersed in an inert water-immiscible fluid layer. The nozzle tip is spaced a predetermined distance away from a rotating disk that is also immersed in the immiscible fluid layer. The rotating disk creates a shear force that at the nozzle tip that dislodges droplets of the aqueous ceramic slurry from the nozzle tip into the immiscible fluid layer. Once dislodged, the droplets assume a substantially spherical shape and a substantially mono-modal size distribution. The droplets are permitted to pass from the immiscible fluid layer into an aqueous gelling solution wherein the droplets are converted into rigid beads. In a preferred embodiment of the invention, the rigid beads are recovered from the gelling solution, washed, and then sintered to obtain a density of greater than about 98% of theoretical density and a sphericity of greater than about 0.95. The method can be used to fabricate substantially spherical zirconia-containing beads having a diameter within the range of from about 0.1 mm to about 2.0 mm that are useful, for example, as grinding media.

[PROBLEMS] An optical component in which the viewing angle can be widened while sustaining a high luminance and the defect of a display can be made inconspicuous, and a backlight employing the optical component.

[MEANS FOR SOLVING PROBLEMS] When a substantially collimated light impinges on the plane of incidence (9), an outgoing light from the outgoing plane (10) exhibits anisotropy in its intensity along an azimuth of 30° to normal to the outgoing plane (10), the anisotropy being such that the ratio between a highest intensity and a lowest intensity in the intensity distribution of outgoing light intensity along the azimuth of 30° is set to not smaller than 1.2.

The invention discloses molding sand. The molding sand is characterized by being prepared from the following materials in parts by weight: 200-240 parts of quartz sand, 30-35 parts of sericite, 60-70 parts of kaolin, 30-40 parts of calcium carbonate, 10-15 parts of coke powder, 10-15 parts of clays, 2-4 parts of titanium dioxide, 4-5 parts of aluminum oxide powder, 20-30 parts of argil, 3-4 parts of asphalt, 10-15 parts of bentonite, 3-4 parts of ammonium dihydrogen phosphate, 4-5 parts of sodium metasilicate, 2-3 parts of sodium dodecyl benzene sulfonate and an appropriate amount of water. According to the invention, the quartz sand, the sericite and the kaolin are used and roasted to achieve abundant pores and good gas permeability, moreover, mobility is good, and grinding of added calcium carbonate, clay, titanium dioxide, asphalt, and the like is combined, so that the molding sand has excellent cohesiveness, plasticity and heat stability, and also has high collapsibility. The molding sand material disclosed by the invention is fine and uniform; a casting piece produced by the molding sand has a smooth surface and a few flaws.

A beauty device (1) includes a light irradiation section (5) that irradiates light of a predetermined wavelength; and an ion generating section (7) that generates an ion. The light irradiation section (5) is placed at one side surface of a main body and the ion generating section (7) is placed at the other side surface of the main body. The light irradiation section (5) includes a plurality of light source modules (25A, 25B) arranged in a predetermined array. Each light source module includes a plurality of light emitting diodes (20a, 20b, 20c, 20d) that are arranged in a predetermined array to emit light of two or more wavelengths.

The present invention relates to a composition for the treatment of acne comprising chlorine dioxide or chlorine dioxide generating compounds as acne reduction agents. The invention also relates to a method for treating acne by topically administering one of the compositions in an amount therapeutically effective to reduce the redness and blemishes associated with acne.

A liquid crystal display device includes an EVF panel; polarizing plates stuck to a plastic substrate respectively disposed in an optical path of light incident on the EVF panel and in an optical path of light exiting from the EVF panel; a top frame section having openings respectively formed in an optical path area of light incident on the EVF panel and in an optical path area of light exiting from the EVF panel; a bottom frame section engaging with the top frame section; and a flexible-circuit-board holding section; wherein the polarizing plates are disposed so as to close the respective openings, and the EVF panel is disposed apart from the polarizing plates in an approximately hermetic space formed by the bottom frame section, the top frame section, the polarizing plates, and the flexible-circuit-board holding section.

The invention provides a method for preparing a matte dry granular glazed brick. The method comprises the following steps: carrying out first drying on a green brick made by a pressing machine, removing free water in the green brick, and controlling the water content in the green brick to be smaller than 0.5 percent of the total weight of the green brick; spraying water mist to the surface of thegreen brick after taking the green brick out of a dry kiln; then sprinkling ground glaze to the surface of the green body, then spraying and painting patterns by using an ink jet machine, and carryingout second drying through the dry kiln; spraying dry granular glaze, putting in a firing kiln after carrying out third drying of the dry kiln, and firing at a high temperature of 1170 to 1185 DEG C for 60 to 70 minutes, thus obtaining a semi-finished product; edging the semi-finished product, flexibly polishing the semi-finished product by using a fiber polishing module combination, and packaginginto a finished product after checking the quality. According to the method provided by the invention, the prepared matte dry granular glazed brick has a vivid stone texture, and meanwhile, the touchsense is mild as jade.

The invention provides UV (Ultraviolet) gloss oil which comprises the following components in parts by weight: 20-40 parts of a monomer, 20-50 parts of an oligomer, 0.5-1.0 part of a flatting agent, 0.5-1.0 part of an antifoaming agent, 0.5-1.8 parts of an initiator, 0.3-0.8 part of a wetting agent and 10-60 parts of a solvent. The invention further provides a high-gloss scrap-resisting decorative film obtained by surface treatment with the UV gloss oil, and a preparation method of the high-gloss scrap-resisting decorative film. When the UV gloss oil provided by the invention is applied to surface treatment on an ordinary high-gloss decorative film, not only is the glossiness of the surface of a product improved, that is, the glossiness is greater than 115 degrees, but also the surface hardness of the product is improved, the pencil hardness of the surface is more than 1H; and the obtained high-gloss scrap-resisting decorative film has the capability of resisting the nail scrape and daily wiping.

The invention discloses a self-repairing yellowing-resistant paint surface protective film and a preparation method thereof. The paint surface protective film is sequentially composed of a release film layer I, a pressure-sensitive adhesive layer, a TPU base material, a self-repairing coating and a release film layer II from bottom to top. The self-repairing coating is made of thermocuring functional polyurethane acrylate resin and comprises 20-50% of functional monomer modified acrylic resin, 10-30% of polymer polyol, 40-60% of a diluting solvent, 10-20% of a curing agent, 0.2-0.5% of a catalyst and 0.5-2% of an auxiliary agent, the TPU base material is optical-grade aliphatic TPU, the pressure-sensitive adhesive is an acrylate adhesive, and the release film layer is a PET silicone oil release film. The paint surface protective film prepared by the invention not only has excellent yellowing resistance and self-repairing performance, but also has high transparency, high glossiness, excellent scratch resistance, acid and alkali resistance, rain spot resistance and the like, so that the self-repairing yellowing-resistant paint surface protective film is suitable for the fields of automobile, furniture films and the like.

The invention discloses a cooling roller surface processing technology comprising the steps of (1) cutting the surface of a roller sleeve of a cooling roller to remove an unsmooth part which can be observed through naked eyes; (2) fixing the roller sleeve on a rotating shaft, and enabling the roller sleeve to rotate; (3) carrying out shot blasting treatment on the surface of the rotating roller sleeve; (4) carrying out rolling treatment on the surface of the rotating roller sleeve in a mechanical rolling way; (5) carrying out ultrasonic treatment on the surface of the roller sleeve by using an ultrasonic vibration generator before the cooling roller is used. An amorphous strip obtained when an applicant prepares the amorphous strip by using the cooling roller treated by combining the three processes including shot blasting treatment, mechanical rolling and ultrasonic treatment in the process of processing the surface of the cooling roller is good in surface smoothness and continuity, few in product flaws as well as good in strip stability and strip thickness uniformity.

The invention provides reverse osmosis membrane production equipment used for forming a reverse osmosis membrane after technological treatment is carried out on a basement membrane. The reverse osmosis membrane production equipment comprises an unwinding device, a coating device, a drying device and a winding device, wherein a basement membrane provided by the unwinding device is coated by virtue of the coating device and then enters the drying device, and the basement membrane is suspended in the air, dried by the drying device and then wound by the winding device. The invention also provides a reverse osmosis membrane production method used for forming a reverse osmosis membrane after the technological treatment is carried out on the basement membrane. The production method comprises the following steps of: S1, providing a basement membrane roll; S2, coating the basement membrane; S3, suspending the basement membrane in the air and drying; and S4, winding the basement membrane. The reverse osmosis membrane produced by adopting the reverse osmosis membrane production equipment provided by the invention and the reverse osmosis membrane prepared by adopting the reverse osmosis membrane preparation method provided by the invention respectively have the advantages of good quality and the like.

A method of controlling gas composition within a container containing respiring produce is described. The container includes at least one gas outlet and at least one gas inlet and the method includes the steps of: drawing gas from within the container through a selective membrane element under selected control conditions through the at least one gas outlet; introducing ambient air from outside die container into the container through the at least one gas inlet under selected control conditions to control the relative composition of gases inside the container. Apparatus for containing the goods and for controlling the atmosphere in the container according to the method are also described.

The invention discloses a powder falling device of a 3D printer. The device comprises stirring box and a powder falling box, wherein a servo motor is arranged at the upper end of the stirring box, a large gear is arranged at the upper end of a main shaft of the servo motor, feeding pipes are arranged at the two ends of the servo motor, and an electromagnetic valve is arranged on the feeding pipes;steel cylinders are arranged at the upper ends of the feeding pipes, supporting legs are arranged at the lower end inside the stirring box, a stirring tank is fixed at the upper end of the supportinglegs, a rotating shaft fixing base is arranged at the upper end of the interior of the stirring box, and the rotating shaft is arranged in the rotating shaft fixing base; a small gear is arranged onthe rotating shaft, a material falling pipe is connected to the lower end of a stirring pipe, a powder storage cavity is formed in the upper end of the interior of the powder falling box, and a powderinlet plate is fixed at the bottom of the powder storage cavity; a plurality of powder inlet holes are formed in the powder inlet plate in a array mode, a rectangular groove is formed in the lower end of the powder inlet plate, and a powder storage plate is arranged in the rectangular groove; and a plurality of powder storage holes are formed in the powder storage plate, a powder falling plate isfixed at the lower end of the powder storage plate, and a plurality of powder falling holes are formed in the powder falling plate. The powder falling device realizes a pre-dispersion treatment of the powder and the powder quantitative falling, the probability of flaws caused by pasting is reduced, and the powder utilization rate is improved.

The invention belongs to the technical field of surface treatment materials of leather, and particularly relates to surface treatment paint of a leather material. The invention aims at solving the technical problem: paint for treating the surface of the leather material can maintain the natural appearance of the leather, sufficiently soften the leather, reduce the abrasion of the leather and enhance the hand feeling. In order to solve the problem, the technical scheme is adopted as follows: the paint for treating the surface of the leather material comprises bottom paint and surface paint, wherein the bottom paint comprises the ingredients by weight percent: 25 to 35 percent of bottoming agent, 20 to 25 percent of fatting agent, 16 to 24 percent of matting and patching agent and 19 to 35 percent of deionized water; the surface paint comprises the ingredients by weight percent: 28 to 35 percent of resin, 5 to 12 percent of hand feeling agent, 8 to 15 percent of smoothening agent, 5 to 10 percent of water-borne brightening agent, 3 to 8 percent of permeating agent, 10 to 15 percent of softening agent and 8 to 38 percent of deionized water. The surface treatment paint has beneficial effects: 1, the natural appearance of the surface of the leather can be maintained; 2, the leather is softer, wear-resisting, smooth and good in hand feeling.

The invention discloses a jade machining technology. The jade machining technology comprises the steps that S1, a working diagram is drawn according to the shape and structure of jade and then is input to a computer to generate data; S2, the jade is put into a numerically-controlled machine tool, peeling is conducted according to the generated data, and a rough blank is cut out; S3, offcut which is cut off in the step S2 is selected to perform hardness detection; S4, the rough blank in the step S2 is carved with the numerically-controlled machine tool according to the data generated in the step S1 so that a stone implement can be formed, carving includes repeated feed carving procedures, and the carving depths of the feed carving procedures are gradually decreased; S5, high-pressure water jet is adopted to form a microjet for accurate carving along traces carved on the stone implement in the step S4, and the pressure of the high-pressure water jet depends on the hardness detected in the step S3; and S6, the stone implement is polished after the step S5 is completed. By combining two cutting modes, the jade machining technology has the advantages of being high in machining precision and high in degree of automation.

The invention relates to an environmentally-friendly dry powder emulsion paint for an inner wall and a preparation method thereof. The environmentally-friendly dry powder emulsion paint for the inner wall is prepared through the following raw materials in parts by weight: 20-35 parts of white cement, 20-35 parts of calcium carbonate powder, 8-18 parts of ash calcium powder, 30-40 parts of modified degreased soybean powder pulp, 5-10 parts of titanium dioxide, 10-20 parts of propolis powder, 6-8 parts of water soluble glucan, 4-6 parts of flatting agent, 2-3 parts of organobentonite, 1-3 parts of nanometer magnetic ordered mesoporous medium, 2-3 parts of antioxidant, and 1-3 parts of additive, wherein the additive is at least one of flame-retardant powder, nanometer negative ion powder and an antistatic agent; the flatting agent is a liquid acrylic flatting agent. The environmentally-friendly dry powder emulsion paint for the inner wall is reasonable in raw material selection, and proper in matching; compared with an existing emulsion paint, the prepared dry powder emulsion paint has the advantages of being outstanding in water resistance, outstanding in bonding performance, high in consistency in the drying process, and high in flatness; in addition, the emulsion paint is high in stability during the drying process, is influenced slightly by the outside condition, and is hard to discolor; in addition, the emulsion paint is outstanding in antibacterial capacity, high in static resistance and high in fire retardance.

The invention discloses a casting iron pan and a casting process thereof.The casting process includes the steps of smashing pig iron, adding samarium and neodymium pure metal into a smelting furnace to be smelted at a high temperature, lowering the temperature of molten iron to be 1250-1350 DEG C, casting the molten iron in a sand mold, preparing a nucleation seed crystal agent, instantly putting in the nucleation seed crystal agent, conducting stirring to evenly disperse the nucleation seed crystal agent in molten iron till small micro-crystals appear, cooling the molten iron containing small micro-crystals till the molten iron is solidified, conducting demolding to obtain a rough product, conducting tempering on the rough product, taking out the product, grinding a tempered casting iron pan till the surface is smooth and presents metal luster to obtain the casting iron pan finished product, putting the finished product in a closed package bag, and storing the casting iron pan in a dry, ventilated and cool place.The casting iron pan is high in strength, plasticity and durability, the problems that the casting iron pan is long in forming time and not stable in performance are solved, and the additional value of the casting iron pan is improved.

The invention provides an aluminum oxide ceramic. The aluminum oxide ceramic is prepared from aluminum oxide, calcined kaolin, bentonite, heavy magnesium carbonate, calcium carbonate, barium carbonate, glycerol, emulsified wax, titanium dioxide, zirconium dioxide and lanthanum oxide. The invention also provides a preparation method for the aluminum oxide ceramic. The preparation method comprises the following steps: mixing all the raw materials, adding water, carrying out ball milling, adding an aqueous polyvinyl alcohol solution with a mass fraction of 10%, continuing ball milling to obtain slurry, carrying out spray granulation to obtain a ceramic material, carrying out dry pressing molding, and performing roasting to obtain the aluminum oxide ceramic. According to the invention, Al2O3-SiO2-MgO-CaO composed of aluminum oxide, kaolin, bentonite, heavy magnesium carbonate and calcium carbonate is used as a basic system; barium carbonate, zirconium dioxide and lanthanum oxide are addedto serve as grain inhibitors; titanium dioxide serves as a solid solvent; glycerol and emulsified wax serve as dispersing agents; so the aluminum oxide ceramic with high bending strength is prepared.

The invention relates to a double-nozzle assembly and a three-dimensional printing device applying the same. The double-nozzle assembly comprises a base, a nozzle module and a switching module; and abearing of the nozzle module is arranged in the middle of a positioning swing arm, a first nozzle unit and a second nozzle unit are fixed to the positioning swing arm and located at the two opposite lateral edges of the bearing correspondingly, and a fixing shaft piece erects the nozzle module on the base through the bearing. When a rotating shaft of the switching module switches a first cam or asecond cam on the rotating shaft to abut against one end or the other end of a force application elastic sheet in a pressing mode, a third connecting element or a fourth connecting element is driven to abut against one end or the other end of the positioning swing arm of the nozzle module in a pressing mode, so that the positioning swing arm swings with the bearing as the center, and the height difference between the first nozzle unit and the second nozzle unit is switched.

The invention provides a thermocuring self-repairing type paint surface protective film and a preparation method thereof. The paint surface protective film is sequentially composed of a release film layer A, a pressure-sensitive adhesive layer, a base material layer, a self-repairing coating and a release film layer B from bottom to top. The self-repairing coating is made of self-repairing thermocuring type modified polyurethane acrylate resin and comprises 10-18% of functionalized acrylic resin I, 10-18% of functionalized acrylic resin II, 12-35% of polymer polyol, 30-50% of a solvent, 15-30% of a curing agent, 0.05-0.2% of a catalyst and 0.3-1.0% of auxiliaries, and the base material is made of optical-grade aliphatic TPU, the pressure-sensitive adhesive is an acrylate adhesive, and the release film layer is a PET silicone oil release film. The paint surface protective film is simple in preparation process and easy for industrial batch production, the self-repairing coating has excellent scratch resistance, self-repairing performance, aging resistance, corrosion resistance, pollution resistance and the like after being thermally cured, and the self-repairing paint surface protective film can be widely applied to the fields of automobile and furniture paint surface protection, electronic equipment screen protection and the like.