33results about How to "Not easy to wipe off" patented technology

The invention provides a composite photocatalyst and a preparation method and application thereof. The composite photocatalyst comprises a solvent and nanometer titania, a carbon material and nano-crystalline cellulose which dispersed in the solvent, and the nano-crystalline cellulose and the nanometer titania are interspersed in the carbon material. The preparation method includes the steps of 1), mixing a carbon material dispersion solution with a nanometer titania dispersion solution to obtain a mixture; 2), mixing the mixture with a nano-crystalline cellulose solution to obtain the composite photocatalyst. The composite photocatalyst is good in photocatalytic effect, simple in preparation method and widely applicable to the field of environmental restoration.

The invention provides a method for printing words on the surface of a cable with a fluoroplastic sheath, which comprises the following steps: performing water-cooling sizing after extruding the fluoroplastic sheath of the cable; performing surface drying; and printing words on the surface of the fluoroplastic sheath by adopting a type wheel. During water-cooling sizing, a heating device is adopted to maintain the water temperature about 130 DEG C under the pressure of 0.2MPa; after the surface of the fluoroplastic sheath is dried, the surface thereof is treated; a plasma flamethrower ionizes the air to generate a high-concentration plasma source, and plasmas are sprayed through compressed air to treat the surface of the fluoroplastic sheath, so that the surface is roughened; the arc type wheel is used to print words on the surface of the fluoroplastic sheath; and another plasma flamethrower dries the printed words. The method for printing the words on the surface of the cable with the fluoroplastic sheath can obviously improve the adhesion firmness of the printed words, so that the printed words have good scuff resistance and are difficult to erase, and the cable is convenient to lay and use.

The invention discloses a Chinese traditional medicine compound trans-dermal absorption plaster for treating dysmenorrhea and a preparation method thereof. The plaster is prepared with the following materials by weight ratios: 0.5-3 shares of angelica extract, which is extracted from angelica by carbon dioxide supercritical extraction; 4-6 shares of fumitory extract, which is extracted from fumitory by traditional extraction method; 1-3 shares of turmeric extract, which is extracted from Chinese traditional medicinal materials by carbon dioxide supercritical extraction; 0.5-2 shares of trans-dermal accelerant; and 100-150 shares of pressure-sensitive adhesive. The materials are dispersed by nano-microemulsion dispersing machine intensively, and the particle diameter of the microemulsion is limited in nano-grade. The trans-dermal absorption preparation of the invention enters into the Subcutaneous capillary through skin cell gaps, and gets to the focus along with the blood circulation; the biological availability is improved by more than 10 times higher than the equivalent products, the curative effect is improved notably, the usage is convenient, and the adaptability of the sufferer is improved.

The present invention discloses compositions for increasing the adhesion of a layer of silver deposited from an immersion plating bath as well as methods of increasing the adhesion of silver layers obtained using these compositions. Such compositions and methods are particularly useful in the manufacture of electronic devices.

The invention discloses a manufacturing process of three-dimensional highlight 3D glass. The process comprises the following steps of glass plate shape cutting, grinding treatment, overall cleaning, accurate grinding and polishing treatment, surface cleaning and AF surface crystal plating, the antifouling property of the 3D glass is effectively improved, external finger fingerprints and oil stainscan be effectively prevented from being prone to adhesion, and a user can easily wipe off stains on the surface; the anti-scratching performance is achieved, the treated surface is smoother, the handfeeling is more comfortable, and the surface is not prone to being scratched by external objects; strong wear-resistant performance and corrosion-resistant performance are also realized; the defectsthat the structure is incomplete, the local stress property is poor, the appearance is not attractive and the like due to the fact that grinding and polishing of the 3D glass machined in a conventional machining mode are limited by edges and corners and a cross section is formed at the contact part with a face are effectively overcome.

The invention discloses a black oxidation method of a stainless steel cathode. The method comprises the steps of adding an electrolyte into an electrolytic tank, then adding three drops of nitrobenzene, uniformly stirring, then extending completely-cleaned parts into the tank, electrifying, and performing oxidation for 10 minutes. The problems that a chemical oxidation film layer is non-uniform in appearance and high in energy consumption and has heavy metal pollution can be solved by adopting the technical scheme disclosed by the invention; a film layer obtained by using the method is uniformly gray black to black in appearance, and is especially suitable for stainless steel parts for extinction required by optical instruments.

The invention discloses a method for preparing medical high-activity silicon oil, which comprises the following steps: using aminopropyl tetramethyldisiloxane, octamethylcy-clotetrasiloxane (D4), tetramethyltetraethylcyclotetrasiloxane(D4), and methylphenyl cyclic body(Dn) as polymeric monomers, and removing a heat source by dynamic ultra-filtration technology under the protection of N2; controlling reaction temperature and reaction time and carrying out polymerization under the actions of a catalyst and an accelerant; after the completion of the reaction, extracting low-boiling-point substances at reduced pressure; and finally, raising temperature and adding an amino coupling agent to obtain a target product with high purity. The method has the advantages of low cost, mild conditions, simple process and operation, no pollution and convenient industrialization. The product prepared by the method is used for the silicatization of medical appliance and has the advantages of excellent lubricating performance, waterproof performance and the like.

The invention relates to a simple rotary coding device and belongs to the technical field of mechanical equipment. The simple rotary coding device comprises supporting legs, an operating platform, a first bearing, bearing sleeves, a rotating shaft and a second bearing. According to the simple rotary coding device, a coding rotating disc and a code bar protrusion are arranged on the rotating shaft, and a handle is rotated, so that a groove mark is directly pressed on a to-be-coded object through the code bar protrusion; in this way, a manufactured bar code is clearer, cleaner and more sanitary and is also not prone to being erased, and the printing ink pollution problem is better solved; the code bar protrusion can be pressed and engraved on a metal plate, the code engraving efficiency is improved, the cost is reduced, and the labor intensity of workers is relieved; and in addition, the structure is simple, using is stable, convenient and reliable, and the simple rotary coding device is suitable for application and popularization.

The invention relates to the technical field of leather, and discloses a preparation process of three-dimensional embossed leather. The preparation process comprises the following steps that finishing is carried out, specifically, recycled raw leather is separately placed according to the size, the raw leather with the same thickness and size is placed together, and preliminary classification and finishing are carried out on the raw leather; and soaking is carried out, specifically, a disinfectant is added into warm water, then the temperature of clear water is measured, the temperature of the clear water is adjusted according to different types of leather, then the raw leather is soaked in the clear water, and meanwhile, the soaking time is controlled according to different types of the raw leather. According to the preparation process of the three-dimensional embossed leather, the leather is tanned, so that the part difference is effectively reduced, loose and soft parts such as abdomen and skirting parts are well filled, the physical performance of the whole leather is more uniform, the cutting rate of the leather can be improved, the toughness of the processed leather is improved, the production quality of the leather is effectively improved, and the coated finished product is not prone to being stained, is easy to wipe off and is easy to maintain.

The invention provides a composite pencil lead. The composite pencil lead is prepared from the raw materials in parts by mass: graphite powder, bisphenol A-type unsaturated polyester resin, asphalt, bismuth powder and indium powder. A preparation method of the composite pencil lead comprises the following steps that the raw materials are mixed evenly according to the ratio firstly, a mixture is preheated under the vacuum condition at the preheating temperature of 150-280 DEG C, and then the preheated mixture is calcined under carbon protection at 310-340 DEG C; and then a calcined material issubjected to injection-compression molding, annealing is conducted, and thus a composite pencil lead coarse material is obtained. The composite pencil lead is prepared from an environment-friendly material, has no pollution to the environment, has no harm to a human body and is high in abrasion resistance, and the abrasion resistance of the composite pencil lead is much higher than that of a pencil and higher than that of a metal refill; brightness and the gray level are high; the pencil lead is high in flowability and lubricating degree, not prone to being oxidized, resistant to corrosion andgood in stability; the composite pencil lead can be used as a pencil lead, the pencil point is firm, and no powder falls off in the writing process; writing is smooth, and handwriting is long in preservation time and not prone to deforming; the hardness can reach the HB level; and the composite pencil lead can be applied universally, and erasing is easy.

The invention provides a wear-resistant pen refill and a preparation method thereof. The wear-resistant pen refill comprises the following raw material in parts by mass: 30-90 parts of carbon powder,5-35 parts of phenolic resin, 0.1-8 parts of asphalt, 0.1-3 parts of iron powder, 0.1-2 parts of boron and 0.01-1 part of phosphorus, wherein the particle size range of the carbon powder, the iron powder, the boron and the phosphorus is 50-1000 meshes. The preparation method comprises the following steps: preparing a paste material, extruding the paste material into a blank, calcining the blank, and carrying out processing so as to obtain a wear-resistant pen refill coarse material. The raw materials of the wear-resistant pen refill provided by the invention are all environmentally-friendly materials, so the wear-resistant pen refill is free of pollution to the environment and harmless to the human body. The abrasion resistance of the wear-resistant pen refill is high and is far larger than the abrasion resistance of a pencil and a metal pen refill; the brightness and the gray scale of the wear-resistant pen refill are high; the core of the wear-resistant pen refill is high in fluidityand high in lubrication degree; the wear-resistant pen refill is not prone to oxidation, is corrosion-proof, has good stability and does not generate discoloration; the wear-resistant pen refill canbe used as a pen refill, is firm in pen point, does not fall powder in the writing process, and is safe and reliable; the wear-resistant pen refill is smooth in writing; handwriting can be stored fora long time and is not easy to deform; the hardness of the wear-resistant pen refill can reach an HB level; and the handwriting of the wear-resistant pen refill is easy to be cleaned by using an eraser.

The invention discloses a novel coding machine and relates to the technical field of packaging machines. A pinch roller (4) is connected with a print head (5) through a belt. The print head (5) is connected with a belt conveying wheel (6) through a belt. A rubber belt (7) is meshed with the pinch roller (4). The pinch roller (4), the rubber wheel (7) and the belt conveying wheel (6) are all arranged on a box body (8). A belt collecting wheel (9) is arranged on one side of the box body (8) and is connected with the pinch roller (4) through a belt. A temperature knob (10), a security button (11), a power switch (12) and a handle (13) are sequentially arranged on the box body (8). A plurality of idler wheels (14) are respectively arranged at the four corners of the bottom of a printing workbench (1). The novel coding machine is simple in structure, attractive and exquisite in style, simple to use, convenient to maintain, low in cost, diverse in function, good in printing effect, incapable of being erased easily, long in service life and capable of meeting requirements of people.

The invention relates to a surface code spraying method for a crosslinked polyethylene cable wire core. The surface code spraying method mainly comprises the following step that when the surface temperature of the crosslinked polyethylene cable wire core is 110 to 130 DEG C, ink is used for code spraying and character printing. When the method is adopted for spraying codes and printing characters on the surface of the crosslinked polyethylene cable wire core, the adhesive force of printed characters can be improved, and the wear resistance of the printed characters can be enhanced.