52results about How to "Meet the basic requirements" patented technology

The invention relates to label tapes and production methods thereof, particular to a bamboo fiber label tape and a production method thereof. The label tape comprises a base cloth layer and an adhesive layer, the thickness of the label tape is in a range of 0.280-0.300 mm, the base cloth layer is made of a 100% bamboo pulp fiber material, the count of bamboo pulp fiber yarn forming the base cloth layer is 16-40, the warp density is 28-45 warps/cm, and the weft density is 19-35 wefts/cm. The production method comprises the steps of selecting a bamboo fiber semi-finished product as base cloth; performing anti-crease finishing; subjecting the base cloth to two-time immersion and two-time rolling treatment; performing pre-calendering treatment: a calendering surface is a stain-weave surface, the calendering temperature is 50 DEG C to 60 DEG C, the pressure is 10MPa to 12MPa, the calendering speed is 30 m/min to 35 m/min, and the thickness of the base cloth is calendered into 0.285 mm to 0.295 mm; performing coating treatment: a dry type coating method is adopted, coating a plain-weave surface of the base cloth with adhesive, scraping pulp by pulp scraping equipment, the adhesive spread is controlled within 5 g/m<2> to 10 gm<2>, and the total weight is 144 g/m<2> to 148 g/m<2>; and performing post-calendering treatment: the calendering temperature is 70 DEG C to 120 DEG C, the pressure is 10MPa to 12MPa, the calendering speed is 30 m/min to 35 m/min, and the thickness of the coated cloth is calendered into 0.280 mm to 0.300 mm. The label tape touches soft and can be used as a sewn-in label.

The invention discloses a method for recycling ilmenite from vanadium titano-magnetite iron dressing tailings. The method comprises the steps that the specific susceptibility of main gangue in the iron dressing tailings, the specific susceptibility of the ilmenite in the iron dressing tailings and the content of TiO2 in the iron dressing tailings are determined; when the iron dressing tailings meet the condition 1, the iron dressing tailings are subjected to first-section strong magnetic separation, first-section strong magnetism concentrates are subjected to one-time or multi-time reselection, and gravity concentrates are obtained; the gravity concentrates are subjected to first-time flotation and one-time or multi-time electric separation, and ilmenite concentrates are obtained, wherein the condition 1 can be shown in the formula: X1>(X2*60%), the total amount of the iron dressing tailings serves as a standard, the content of the TiO2 in the iron dressing tailings is lower than 5 wt%, X1 is the specific susceptibility value of the main gangue in the iron dressing tailings, and X2 is the specific susceptibility value of the ilmenite in the iron dressing tailings; and otherwise, the iron dressing tailings are subjected to a strict granularity classification method. By mean of the method, the production cost of the ilmenite is reduced, and the grade of the TiO2 of selected raw ore obtained after electric separation and flotation is improved.

The invention discloses a novel PLGA-PEG-PLGA multipolymer microbubble ultrasound contrast agent and preparation method thereof. The microbubble ultrasound contrast agent is provided with an outer housing prepared from the polymer material PLGA-PEG-PLGA, the components of the inner core of gas include perfluoropropane, decafluorobutane or sulphur hexafluoride, and the like, and the molecular weight of the PLGA-PEG-PLGA multipolymer ranges from 2000 to 20000 dal. The preparation of the agent adopts the double emulsion method, and after being frozen and dried, gas molecules are led into microbubbles. The multipolymer microbubble contrast agent has favorable backscattering performance, shows the enhanced effect of ultrasonic contrast during in vivo and in vitro experiments, is safe and nontoxic, and meets the requirement of the ultrasound contrast agent.

The invention discloses a preparation method of hydrogel for drug-loaded contact lenses, which comprises the following steps: mixing polymeric monomers of hydroxyethyl methacrylate and N-vinyl pyrrolidone, an initiator, and drugs loaded by contact lenses, performing polymerization, after the reaction, swelling in water to obtain hydrogel; wherein the initiator is ammonia sulfate and tetramethyl ethylenediamine. The synthetic route provided by the invention is simple, and is strong in operability; the obtained product has performance which meets basic requirements for contact lenses, and can control the release of hydrophilic eye medicine and hydrophobic eye medicine. The invention has great social benefit and economic benefit.

The invention discloses a combined bed, wall cabinet and desk assembly for a student hostel, which mainly comprises a wall cabinet (1), a combined bed, a bookcase (3) and a desk (5), wherein the wall cabinet (1) is divided into left, middle and right cabinets and is positioned above the combined bed; a bed board (12) is paved above a bed frame (11) of the combined bed; an anti-falling guardrail (13) is arranged outside a bed edge of the bed frame (11); the bed frame (11) is also provided with a bedside clapboard (2); a drawer (4) with a lock is arranged on the left below the bed board (12); a box cabinet (6) is arranged below the drawer (4); a bookshelf (9) is arranged in the middle below the bed board (12) from top to bottom; the bookshelf (9) is divided into a shoe cabinet (8) and a pedal (7) from top to bottom; the pedal (7) is drawable; a garderobe (10) is arranged on the right below the bed board (12); the garderobe (10) is provided with two doors; the bookcase (3) is divided into four layers from top to bottom by clapboards; and the desk (5) with the drawer with the lock is arranged below the bookcase (3) and above one side of the bedside clapboard (2). The bed board of the combined bed is at a short distance from the ground and is also provided with the drawable pedal, so that a user can conveniently go to bed and get out of the bed and the sleeping safety is guaranteed; the combined bed, wall cabinet and desk assembly has a reasonable space layout, a compact structure and a function of providing convenience for sleeping, studying, object storing and the like; and a study zone and a sleeping rest zone are effectively separated, so that the dynamic-static separation is realized.

The invention relates to a gelatin-chitosan-hyaluronic acid-heparan sulfate composite three-dimensional stent and a preparation method thereof. The gelatin-chitosan-hyaluronic acid-heparan sulfate porous three-dimensional composite stent is prepared by mixing gelatin, chitosan, hyaluronic acid and heparan sulfate in different ratios to obtain mixtures at different concentrations and freeze-dryingthe mixtures. The pore diameter, porosity, degradation, water absorption and the like of the stent can be regulated and controlled through each component content and freeze drying condition and can meet the basic requirement of a stent material. The stent can be used for the study of the growth, propagation and differentiation of NS/PCs. Through the hyaluronic acid, cells are distributed in the stent uniformly, and the heparan sulfate can bond growth factors, so that the growth propagation condition of the cells is similar to in-vivo condition; and the composite stent contains more functionalgroups such as amino groups, carboxyl groups, hydroxyl groups, sulfo groups, amide groups and the like, and is suitable for the conglutination, growth, propagation and the like of the cells.

The invention discloses a preparation method of a polyaspartic acid ester polyurea composite material. The composite material is prepared by compounding an explosion-proof polyaspartic acid ester polyurea elastomer and a porous energy-absorbing fiber fabric mesh cloth, the polyaspartic acid ester polyurea elastomer is anti-explosive, wear-resistant, impact-resistant and fatigue-resistant, and is an energy-absorbing reinforcing material, the porous fiber fabric mesh cloth is light, energy-absorbing, vibration-reducing and tear-resistant, and is an energy-absorbing reinforcing material, the polyaspartic acid ester polyurea composite material obtained by compounding the explosion-proof polyaspartic acid ester polyurea elastomer and the porous energy-absorbing fiber fabric mesh cloth has properties such as explosion resistance, energy-absorbing properties, vibration-reducing properties and impact resistance, can be used in military facilities and explosion-proof energy-absorbing protective equipment, can resist shock waves and debris generated by explosion, and meets basic requirements of military equipment.

The invention discloses a surface modification method for contact lenses with medicine delivery. The method comprises the following steps: dipping the contact lenses into a polycation electrolyte solution with medicines, soaking, then taking out, washing with a sodium chloride solution, and drying putting the obtained contact lenses into a polycarboxymethyl-beta-cyclodextrin, soaking, then taking out, washing with the sodium chloride solution and drying; repeating the two steps for the obtained contact lenses for 5-30 times so as to obtain the contact lenses with self-assembled multi-layer film surface modification layer to layer. The invention provides a surface coating of contact lenses with a good medicine release control capability, and a preparation method of the surface coating, the properties of an obtained product meet the basic requirements of cornea contact lenses, and release of eye medicines can be controlled. The surface modification method has great social and economic benefits.

The invention discloses a processing method of ripe Puer tea with low caffeine content. The processing method comprises the following steps: preparing aspergillus sydowi powder by grafting aspergillus sydowi suspension on a seed-culture medium; mixing sun-dried crude green tea with a certain amount of the aspergillus sydowi powder, then fermenting; and fermenting the mixture under certain conditions by pile-fermentation for about 50 days, so that the processed ripe Puer tea with low caffeine content is obtained. The processing method disclosed by the invention is simple and easy to operate; and the caffeine content in the obtained ripe Puer tea is reduced to no higher than 1.0%, so that the international standard of low-caffeine tea is thereby satisfied.

The invention discloses an eaglewood extract with allergy-relieving and anti-allergy effects, and a preparation method and application thereof. The method comprises the following steps: (1) grinding eaglewood, and then heating and extracting the eaglewood in an ethanol solution; (2) performing cooling and filtering, and extracting filter liquor for later use; (3) concentrating the filter liquor in the step (2) to obtain eaglewood extract concrete; (4) mixing and dissolving the eaglewood extract concrete in the step (3) and polyol, and performing filtering to obtain filter liquor namely the eaglewood extract with the allergy-relieving and anti-allergy effects. The method for preparing the eaglewood extract, provided by the invention, is simple and convenient to operate and suitable for large-scale production, and the purity of an obtained product is higher. The eaglewood extract provided by the invention has multiple effects of inhibiting the activity of hyaluronidase, scavenging free radicals, achieving anti-inflammation and anti-allergy, enhancing a skin barrier function and the like. The extract has an environmentally-friendly extraction mode, is healthy and safe, inhibits release of allergy mediators such as histamine, and can be widely applied to various cosmetics such as masks by serving as an active anti-allergy ingredient.

The invention relates to a trademark tape and a manufacturing method thereof, in particular to a pure-cotton trademark tape and a manufacturing method thereof. The pure-cotton trademark tape comprises a base cloth layer and coating layers, wherein the coating layers are coated at the upper surface and lower surface of the base cloth layer; the base cloth layer is formed by flatly weaving pure-cotton warp yarns and weft yarns, and each coating layer is a coating containing oily polyurethane. The manufacturing method sequentially comprises the following steps of (1) pretreatment of a base cloth: enabling the base cloth layer to sequentially pass through a cold pad batch working liquid and a desizing one-bath working liquid, wherein the base cloth layer is impregnated into the cold pad batch working liquid at the temperature of 25 DEG C and turning speed of 45m/min, and passes through the desizing one-bath working liquid at the temperature of 60 to 70 DEG C; (2) pre-calendering treatment: after pretreatment, calendering the base cloth layer at the normal temperature, pressure of 6MPa, and turning speed of 18-20m/min; (3) coating treatment: coating the coating layers at the upper surface and lower surface of the base cloth layer after pre-calendering treatment, wherein each coating contains the oily polyurethane; (4) slitting treatment: slitting the base cloth layer after coating treatment into different sizes of trademark tapes. The pure-cotton trademark tape has the characteristics that the cold slitting is realized, the edges are not dispersed, and the stone wash-resistant property is realized.

The invention relates to a main workshop structure of a large heat power plant, which comprises a turbine house, a deoxidizing bay and a bunker bay, wherein one side of the deoxidizing bay is adjacentto the turbine house, and the other side of the deoxidizing bay is adjacent to the bunker bay; a transverse shearing force wall and a longitudinal shearing force wall are dispersed at the circumferences of the bunker bay and the deoxidizing bay; frame columns of the deoxidizing bay and the bunker bay are profile steel concrete columns under the coal bucket layer; and the turbine house, the deoxidizing bay and the bunker bay integrally form a profile steel concrete frame-dispersed shearing force wall structure. The main workshop structure of the heat power plant is a main workshop structural system which is suitable for a high-capacity unit in an earthquake high-intensity area and has favorable structure performance and relatively low cost. Compared with the traditional system, the invention has the advantages of better quaking resistance, column section reduction, more convenient space process arrangement, low maintenance cost in later period, and the like.

The invention discloses a synthetic method of an ethanediol polyester plasticizer. The ethanediol polyester plasticizer is synthesized from diol and binary acid by polycondensation under the action ofa catalyst by controlling parameters such as temperature, pressure, time and the like of a reaction process. The molecular weight range Mn of the polyester plasticizer is 2,800-3,800, the polymerization degree n is 15-20, when serving as a low-temperature plasticizer to be applied to a soft PVC sheet, the polyester plasticizer has better compatibility and excellent heat stability and meets the basic requirement of the plasticizer, tensile strength, breaking elongation and low temperature flexibility of the polyester plasticizer are excellent, and besides, an obtained PVC product has a betteranti-static effect.

The invention discloses a dental machinable diatomite full ceramic restoration material and a preparation method thereof; the method comprises: diatomite is taken as raw material and is added with nano toughening agent, thus adjusting the strength and the toughness of the diatomite full ceramic material; the diatomite full ceramic restoration material comprises the components of raw materials by mass percent: 30-35% of diatomite natural soil, 10-15% of bentonite, 5-7% of quartz, 40-55% of nano toughening agent and 5-7% of pH regulator; wherein the nano toughening agent contains nano zirconia (ZrO2), aluminum oxide (Al2O3) and titanium dioxide (TiO2) crystal whisker; and the pH regulator is sodium carbonate. The preparation technique comprises: the raw materials are processed by ball-milling according to a certain mass ratio, dry pressing to be molded under 500-700MPa and sintering under the ordinary pressure at 700-1150 DEG C, so that the dental machinable diatomite full ceramic restoration material can be obtained. Compared with the prior art, the invention has the characteristics of low cost of the preparation technique, stable quality, good repeatability as well as excellent mechanical property and aesthetic performance, so as to meet the requirements of clinical oral full ceramic restoration.

The invention discloses a novel cis-platinum polyethylene glycol-polylactic acid or polylactic acid-glycolic acid (PLA-mPEG or PLGA-mPEG or PLA/PLGA-mPEG) copolymer nano medicament and a new preparation method thereof. The macromolecular material PLA/PLGA-mPEG is used as a support in the nano medicament carrier; and a double-emulsifying method is applied in preparation, meanwhile, polyethylene glycol vitamin E succinate (TPGS) is used as a stabilizing agent, and the solid nano cis-platinum medicament is finally obtained by freeze drying, wherein the medicament can be uniformly distributed in nucleus. The copolymer nano carrier is safe and non-toxic, and meets the requirement of in vivo application of the medicament; and the solid nano medicament can be rehydrated to form emulsion by using physiological saline, so that the medicament has high stability. The preparation method avoids the problems of low cis-platinum entrapment rate and low loading rate and the like in the conventional preparation method, and can be applied to sustained-release or controlled-release preparation of insoluble medicaments.

The invention discloses a preparation method of injectable nanocomposite hydrogel having pH response characteristics. The preparation method includes the following steps that 1, material preparation is performed, and cyclodextrin and double-bonded gelatin having the pH response characteristics are prepared according to the prior art; 2, a hydrogel precursor solution containing cyclodextrin nanoparticles is prepared, a pH sensitive cyclodextrin derivative is dissolved in dichloromethane to form a cyclodextrin/dichloromethane solution, ultrasonic grinding is performed in a sealed ice bath, a certain concentration and volume of double-bonded gelatin/PBS solution having the pH of 7.5 is added to obtain mixed emulsion, magnetic stirring is performed, and the double-bonded gelatin is added after an organic solvent is evaporated fully; 3, a certain amount of light initiator is added to the solution, and the nanocomposite hydrogel is prepared after lighting is performed by using an ultraviolet lamp in a reactor for a certain time. The prepared injectable nanocomposite hydrogel having the pH response characteristics has wide application in the field of biological medicines.

The invention discloses a control system of a converter valve hall inner wall cleaning robot. The control system comprises at least one driving module, at least one controlled object stepping motor, an electric push rod, a cleaning module, a guiding module, an obstacle avoidance module, a computer PC terminal, a single chip microcomputer chip and a CAN bus. The computer PC terminal receives all bus information from the CAN bus so as to monitor initialization and the working states of the driving module, the cleaning module, the guiding module and the obstacle avoidance module. The driving module obtains navigation information from the CAN bus and achieves positive rotation, negative rotation and stop of the stepping motor when the robot climbs, advances and goes back the same way through a stepping motor driver. The cleaning module obtains cleaning starting information from the CAN bus, and then ascending and descending of a cleaning brush are achieved by controlling the electric push rod to stretch out and retreat. The descending distance of the cleaning brush is determined by the stroke of the electric push rod. The guiding module controls two distance measurement sensors.

The invention discloses a traditional Chinese medicine extract with allergy-relieving and anti-inflammatory effects, a preparation method for the traditional Chinese medicine extract and application of the traditional Chinese medicine extract. The traditional Chinese medicine extract is prepared from the following raw pharmaceutical materials in parts by weight: 6-8 parts of haichow elsholtzia herb, 5-6 parts of rhizoma pleionis, 2-3 parts of doubleteeth pubescent angelica roots, 2-3 parts of rhizoma sparganii, 1-2 parts of catechu and 1-2 parts of radix polygalae. The preparation method comprises the following steps: (1) crushing traditional Chinese medicines in the prescription, and carrying out heated extraction in an ethanol solution; (2) carrying out cooling, filtering, decoloring andrefined filtration, and taking refined filtrate for later use; (3) concentrating the filtrate obtained in the step (2) so as to obtain traditional Chinese medicine extract concrete; and (4) mixing the traditional Chinese medicine extract concrete obtained in the step (3) with polyalcohol, carrying out dissolving, and carrying out filtering, thereby obtaining the traditional Chinese medicine extract with the allergy-relieving and anti-inflammatory effects. The traditional Chinese medicine extract provided by the invention has multiple effects of inhibiting activity of hyaluronidase, clearing free radicals, resisting inflammations and allergies, strengthening a skin barrier function, and the like and can be extensively applied to various medical supplies and daily chemical products for skinsuch as cream.

The invention discloses an automobile locknut and a machining process thereof. The automobile locknut has the advantages of being good in anti-loosening effect and easy to disassemble, the machining process is efficient and environmentally friendly, the needed performance requirement can be met, the automobile locknut is characterized by comprising an inner-layer nut body and an outer-layer nut body, a first inner threaded hole is formed in the center of the inner-layer nut body, the inner-layer nut body is cylindrical, a cavity is formed in one end of the outer-layer nut body, the inner-layernut body is installed in the cavity, a second inner threaded hole is formed in the other end of the outer-layer nut body, the inner diameter of the first inner threaded hole is the same as that of the second inner threaded hole, and a clearance compensation assembly is further arranged in the cavity and comprises a metal shell and an expansion rubber. The automobile locknut is applicable to the technical field of nuts.

The invention discloses a cover plate and a display device. The cover plate is applied to the display device. The cover plate is located on one side of the light-out surface of a display module of the display device. The cover plate comprises a transparent substrate and a color film which is located on a surface of the transparent substrate, wherein when the display device is switched off, the display device presents a color corresponding to the color film on one side of the cover plate; when the display device is switched on, the display device presents a display picture of the display module on one side of the cover plate. According to the technical scheme, the color film is arranged on the cover plate, so that when the display device is switched on, the display picture of the display module can be displayed through the cover plate, and accordingly basic requirements of the display picture of the display device can be met; when the display device is switched off, the color corresponding to the color film is presented on the display device, and then the requirements of the appearance of the display device by people are met.