665results about How to "Not easy to stain" patented technology

The invention discloses a thin reflective insulation exterior wall paint which is characterized in that the paint is prepared by mixing pigments and fillers as well as multiple synthetic resin solution or emulsion, the pigment ratio 0.9 to 1.3 of the pigment ratio, and the remaining is addition agent and solvent. The invention has good thermal insulation effect, thus reducing the energy consumption of a building. The paint has thin coating and smooth surface, and the contamination is not easy; the painting engineering cost is obviously lowered and the maintenance fee is obviously reduced.

The invention provides a super-dark dyeing technology by dispersing the polyester-cotton fabrics and one bath of the reactive dye, which belongs to a dyeing technology of the fabrics. The technology comprises the following steps: selecting the WW series disperse dyes and C series reactive dyes to soak the pure cotton fabrics into the dyeing solution for one time, then rolling with a squeezer for one time, then pre-baking and baking the cloth, then steaming in a steaming chamber, then washing with water after the steaming, then washing with soap after the water washing, then washing the cloth with water again and drying to finish the dyeing process. The disperse dyes and reactive dyes selected by the dyeing technology has high color yield and good color fastness and the loose color on the fabrics can be completely washed during the soap washing process, therefore, the loose color can not dye the surface of the fabrics, which basically solves the color transfer fastness and wet grinding fastness of the super-dark color. The design of the baking temperature is reasonable, which improves the color yield of the disperse dyes and the color fastness of the dye; the adopted one-bath dyeing process is simple in process flow and low in production cost and the amount of the sewage is few and the dyeing quality is stable.

The invention discloses a ceramic filter film of rare-earth modified attapulgite with a nano coating, which comprises a ceramic supporting body and separation film, wherein the ceramic supporting body is plate-type porous ceramic sintered by modifier added with rate-earth oxide in attapulgite clay and intensifier, the ceramic supporting body has the characteristics of high porosity, uniform pore diameter, high strength, light weight and the like; the separation film is a nano decoration coating, and has outstanding hydrophilicity and lipophobicity. The coating film liquid is produced by nano attapulgite mixing with nano rare-earth oxide and relevant additive dispersing in water, coated on the ceramic supporting body surface via a soak-lifting method, and is sintered at high temperature to form porous separation film with nano surface characteristics; the ceramic filter film can be made into a hollow cavity-type structure, a plurality of combined revolving film components are used in rotary manner, more efficient initiative cross-flow operation can be realized, the film surface is self-cleaned by filter liquid brushing in the revolving process, and the blockage and pollution of the film can be greatly delayed.

The invention relates to an aluminum alloy for a subway station ceiling and a preparing method of the aluminum alloy. The aluminum alloy is characterized by comprising chemical components, including by mass percent, 0.45% to 0.6% of Mg, 0.3% to 0.5% of Si, 0.1% to 0.3% of Mn, 0.1% to 0.2% of Cr, 0.1% to 0.3% of Zr, 0.1% to 0.3% of Hf, 0.05% to 0.2% of Ta, 0.05% to 0.15% of Cu, not larger than 0.05% of Zn, not larger than 0.20% of Fe, not larger than 0.05% of Ti, and the balance Al, wherein the single content of other impurity elements is not larger than 0.05%, and the total content of other impurity elements is not larger than 0.15%. The aluminum alloy is obtained through the preparing method of smelting, refining, casting and homogenizing. Through optimizing of alloy components, adjustment is carried out, the trace of Zr, Hf and Ta is added, and the strength, the heat dissipation, corrosion resistance, humidity resistance, fatigue resistance, static electricity resistance, recrystallization resistance capacity and breaking resistance performance of the aluminum alloy can be obviously improved.

The invention relates to sutures and in particular relates to a method for preparing an absorbable suture. The method for preparing the absorbable suture disclosed by the invention comprises the following steps: (1) separating protein chorion; (2) purifying collagen fibers; (3) deoiling and degreasing; (4) inactivating viruses; (5) performing chrome tanning; (6) performing crosslinking dehydration; (7) polishing; (8) performing chitosan atomization; and (9) packaging. The absorbable suture prepared by the method disclosed by the invention has the characteristics of high tensile strength, knotting firmness, high biocompatibility and small toxic and side effects, and the suture can be absorbed by the body. The suture is completely absorbed, an absorption reaction is avoided, the suture does not need to be taken out, the tissue compatibility is high, and an adverse reaction in the human body is avoided regardless of the time; and moreover, the surface is smooth, the suture is difficultly infected by germs, and infection can be avoided.

The invention discloses a treating process before spraying an aluminum profile. Before spraying, a blank is subjected to treatment of deoiling, alkaline degreasing, neutralizing, oxidizing a positive electrode and sealing half of a hole, so that a semi-closed oxidized film is formed on the surface of the blank; and the oxidization treatment is that: the blank is put into H2SO4 with the concentration of between 160 and 180 g/L, the oxidization temperature is of between 18 and 22 DEG C, and the current density is of between 140 and 160 A/dm<2>. By adoption of the oxidization treatment step, the formed semi-closed oxidized film has a pore structure, so that a good attachment condition is supplied to paints; furthermore, compared with a non-closed oxidized film, the semi-closed oxidized film has the advantages that: impurities, such as dust and the like, cannot be attached to the surface of the profile easily before the profile is sprayed, and a subsequent spraying effect can be guaranteed. Meanwhile, a chromizing treatment step is avoided, and the finally obtained aluminum profile product does not contain chromium; and therefore, the aluminum profile can meet a non-chromizing requirement, and is relatively safe and environment-friendly.

The invention relates to a train cleaning apparatus which is used for cleaning the outer surface of a train carriage and comprises a stand serving as a main body. The train cleaning apparatus is characterized in that: the stand is provided with a cleaning mechanism, a walking mechanism, a sensing system and a control system, wherein the cleaning mechanism is used for cleaning the outer surface of the train carriage; the walking mechanism is used as a moving part of the cleaning machine; the sensing system is used as a monitoring part for detecting the external state of the cleaning machine; and the control system receives, analyzes and calculates the information of the sensing system, and controls the cleaning mechanism and a walking turning mechanism connected with the control system. The train cleaning apparatus provided by the invention has the advantages that: the appearance of a brush is designed according to the profile of the outer surface of a motor train and is compatible with multiple motor train types; the laser positioning and ranging and automatic turning closed-loop control ensure reliable and flexible walking as well as simple operation; and multiple-safety anti-collision protection is provided: laser ranging protection, platform falling-prevention photoelectric sensing and guide wheel collision prevention.

The invention relates to a bacteriostatic isolation coating film-forming liquid for a medical inspection platform and a preparation method thereof. The film-forming liquid containing solid micro-particles comprises a silica sol component loaded with nano silver-titanium dioxide, a nano silver-doped organic-modified mesoporous silica antibacterial composite microsphere component, a composite organic resin component, polyhexamethylene biguanide hydrochloride or phosphate, and an other auxiliary agent component. The bacteriostatic isolation coating film-forming liquid can be used for the surfacefilm-forming isolation use of the hospital inspection platform such as various working or operating tables, appliance storage-taking brackets or working cabinets, and has excellent disinfection bacteriostatic function and hydrophobic and easy-cleaning function.

The present invention relates to light environment friendly ceramic pumice and its manufacture and usage. The ceramic pumice is used widely in fading, fluffing, softening, ageing and other processing of clothing, fabric, cloth, etc. The ceramic pumice of the present invention contains no harmful matter, and results in simplified fabric cleaning post-treatment and no environmental pollution. Treating fabric with the ceramic pumice makes fabric soft, good look, personalized, permeable and comfortable.

The invention discloses a composite material for multifunctional rubber and plastic car foot mats. The composite material comprises the following main raw materials in parts by weight: 50-100 parts of polyvinyl chloride (medical grade, molecular weight: 2500), 5-25 parts of styrene-isoprene-styrene block copolymer, 40-100 parts of tributyl citrate, 5-8 parts of epoxy resin (E-51), 0.5-1 part of 2-methylimidazole, 5-10 parts of nano titanium dioxide, 20-30 parts of calcium carbonate, 1-2 parts of antibacterial agent, 3-10 parts of epoxy soybean oil, 1-2 parts of polyoxyethylene polyoxypropylene polyether and 2-5 parts of calcium-zinc stabilizer. The composite material has the advantages of good self-cleaning property, volatile solvent removing property and antibacterial property.

The invention discloses a self-cleaning antifouling organic-inorganic super-amphiphobic polymer coating which is prepared from the following raw materials: perfluoroalkyl ethanol, methyl isobutyl ketone, HDI trimer, methyl methacrylate, styrene, hydroxyethyl methacrylate, perfluorooctyl methacrylate, benzoyl peroxide, 25-28 parts of methanol silica sol, propylene glycol methyl ether acetate, titanium dioxide, sodium hexametaphosphate, ethyl orthosilicate, vinyl triethoxysilane, an appropriate amount of ammonia water, an appropriate amount of silane coupling agent KH570, an appropriate amount of methyl hydroxyl silicone oil, an appropriate amount of 10% dibutyltin dilaurate, a dispersant, a leveling agent, a defoamer, an appropriate amount of butyl acetate, an appropriate amount of anhydrous ethanol, and an appropriate amount of deionized water. The super-amphiphobic polymer coating provided by the invention is simple and feasible in preparation method, can be firmly combined with a variety of substrates, and has universality, good self-cleaning performance, dirt resistance, scrub resistance, corrosion resistance and other performance, and good application prospects.

The invention discloses an enamel glaze for cast iron plumbing fittings with acid resistance, of which composition (wt.%) is: SiO2 40.0-60.0, Al2O3 0.1-5.0, B2O3 1.0-10.0, K2O 0.1-5.0, Na2O 6.0-17.0, Li2O 0.5-5.0, CaF2 1.5-7.0, Na2SiF6 2.0-6.0, Sb2O3 5.0-15.0, ZrO2 1.0-5.0, TiO2 1.0-10, PbO 0-8.0, CeO2 0.5-6.0, La2O3 0.3-5.0. The enamel glaze for cast iron plumbing fittings with acid resistance has a high chemical stability, a good processing property and a good opacifying capacity.

The invention provides a method of cutting wafer used for preparation of a sensor chip into grains, and the method belongs to the technical field of semiconductor chip packaging. The method comprises the steps as follows: (1) a wafer after a latter process is completed and before packaging is prepared is provided; (2) a protective film is pasted on the front of the wafer; (3) the back of the wafer is ground to realize reduction of thickness; (4) a scribing film is pasted on the back of the wafer; (5) the protective film is torn off under a condition above the room temperature; (6) the wafer is scribed and cut; and (7) the grains on the surface of the wafer are cleaned and blown dry. The method has the characteristic that the yield of the cut grains is high.

The invention discloses anti-ultraviolet self-cleaning water scattering vehicle glass water which comprises the following raw materials in percentage by weight: 97.49-99.48 percent of water, 0.3-0.8 percent of coconut oil diethanolamide, 0.01-2 percent of nano titania and 0.01-0.05 percent of a corrosion inhibitor, and the sum of the percentages by weight of all the components is 100 percent. The anti-ultraviolet self-cleaning water scattering vehicle glass water disclosed by the invention not only has self-cleaning, antibacterial and deodorant functions, but also has an anti-ultraviolet function and a water scattering function.

The invention discloses a shower room sliding door structure which aims at solving the problems that an existing normally-used shower room glass sliding door is bad in anti-collision effect in the sliding process, and stains are prone to being left on a supporting crossbeam on the lower portion of the glass sliding door. The shower room sliding door structure comprises an upper crossbeam, a lowercrossbeam, two sliding doors and two vertical beams connected between the two ends of the upper crossbeam and the lower crossbeam. The opposite faces of the two vertical beams are each provided with aplurality of anti-collision seats, and supporting cushions and reset springs are arranged in buffer through holes in the bottoms of the anti-collision seats. The reset springs abut against the supporting cushions, and each supporting cushion is hinged to two symmetrically-arranged connecting rods. Piston cylinders are arranged in the positions, corresponding to the connecting rods, in the anti-collision seats, and pushing pistons are mounted at the opening ends of the piston cylinders. The connecting rods are hinged to the pushing pistons, and air bags are mounted in the buffer through holesin the two side portions of the anti-collision seats. The closed ends of the piston cylinders communicate with the air bags through pipelines, and clearing brushes are connected to the two sides of the lower ends of the sliding doors. The clearing brushes are arranged between the lower ends of the sliding doors and the upper surface of the lower crossbeam and attached to the upper surface of the lower crossbeam.