177results about How to "Won't settle" patented technology

The invention discloses an ultraviolet-absorbing coating and a preparation method thereof. The ultraviolet-absorbing coating is characterized by being prepared by uniformly mixing 40-60 parts by mass of cyclohexyl methacrylate, 10-20 parts by mass of hydroxyethyl acrylate, 20-50 parts by mass of ultraviolet-absorbing monomer, 100-200 parts by mass of solvents, and 0.1-2.0 parts by mass of an initiator as raw materials at below 15 DEG C and carrying out copolymerization reaction at a temperature of 75-80 DEG C under the protection of nitrogen. By copolymerizing the monomer having an ultraviolet-absorbing function and other acrylate monomers, the coating having excellent ultraviolet-absorbing property is prepared; since the coating has excellent ultraviolet-absorbing property, the transmittance of 365nm ultraviolet light can be less than 1.5% while the transmittance of the conventional ultraviolet absorber is usually above 5%. The ultraviolet-absorbing coating is suitable for being applied in the fields having anti-aging and anti-yellowing requirements, such as solar cells, liquid crystal displays, outdoor advertising, buildings and automotives.

The invention provides a self-cleaning film agent for exterior wall paint, a preparation method and an application method thereof. The preparation method for the self-cleaning film agent is mainly characterized in that: the preparation method comprises the following steps of: taking nanometer titanium oxide composite collosol as a reference; dispersing the collosol in an alkaline aqueous solution after adding an anionic surfactant or a non-ionic surfactant with a mass percent of between 0.1 and 10 to form a transparent and stable dispersion system; and finally adding a certain number of film forming substances into the system to obtain the self-cleaning film agent for the exterior wall paint. The self-cleaning film agent is applied to the surface of the exterior wall paint for secondary coating through a spray coating method or a roller coating method or a brush coating method, and a film is formed at a normal temperature, thereby forming a multifunctional coating with stain and ultraviolet irradiation resistance and air cleaning performance on the external surface of the paint. As the method has the obvious advantages of good performance, simple process, convenient construction, durable effect, environmental friendliness, etc., the method can be applied to various exterior wall paints in a large scale.

A combined type air cleaning, disinfecting and humidifying machine which possesses the functions of washing evaporation, ultraviolet ray, electrical negative ions generator, electrical ozone generator, ultrasonic nobulizer and optical catalyst, thus eliminating the drawbacks of the single function machine of the same type.

A high-reliability bottom filling glue consists of the following raw materials in parts by weight: 30-50 parts of liquid epoxy resin, 1-10 parts of an active diluent, 1-10 parts of a toughening agent, 40-60 parts of spherical silica micropowder with different particle diameters, 4-8 parts of a curing agent, 1-3 parts of a curing catalyst, 0.1-1 part of a coupling agent and 0.1-2 parts of a wetting dispersant. The raw materials are added into a stirring container respectively, and are uniformly stirred in the vacuum state to be discharged so as to obtain the product. The prepared fast-flowing high-reliability epoxy bottom filling glue is relatively high in flowing speed, high in modulus and reliability, low in linear expansion coefficient and suitable for packaging of flip chips.

The invention relates to a composite nanometer oxide latex for paints, a water paint containing the latex and a preparation method of the water paint. The latex consists of a monomer mixture, an emulsifier, a film-forming additive, an initiator, sodium bicarbonate, a pH regulator, an antifoamer, deionized water and nanometer oxide slurry, wherein the nanometer oxide slurry is prepared by firstly dispersing a nanometer oxide, a surfactant and water in a dispersion machine and then sand grinding dispersion in sand grinder; the nanometer oxide is one or two or three of Al2O3, ZnO and TiO2; and the monomer mixture consists of methyl acrylate, methyl methacrylate, diacetone-acryloamide and butyl acrylate. In the synthesis process of the latex of the invention, the nanometer oxide slurry is added, so that nanometer particles can be uniformly and stably combined with synthesized macromolecules to show the functionality of a nanometer material and to realize the excellent hardness, wear resistance and soiling resistance of the water paint containing the composite nanometer oxide latex for paints.

The invention discloses a method for sealing a foundation pit pressure reduction well, which relates to blockage for a deep foundation pit pressure reduction well. The well sealing method comprises the following steps: (1) putting a grouting pipe into a well pipe to a bearing water layer I, and reserving a clearance between the bottom end of the grouting pipe and the bottom end of the well pipe; (2) filling a melon seed shaped sheet to an interface between a stable waterproof layer I and a bearing water layer I; (3) mounting a closed ring on the layer filled with the melon seed shaped sheet; (4) casting plain concrete into the well pipe above the closed ring; (5) grouting the well pipe under the closed ring by using the grouting pipe through pressure to fully block the clearance between the well pipe and a well hole at the interface between the stable waterproof layer I and the bearing water layer I; and (6) casting floor concrete to the whole foundation pit bottom plate. The method has the advantages that the method is simple to implement, the process is simplified and the expense is not increased; moreover, the pressure reduction well is thoroughly blocked at the interference between the stable waterproof layer I and the bearing water layer I, and the risk of bearing water leakage does not exist.

The invention discloses a method for preparing a polymer-based composite material with a high dielectric constant. The method comprises the following steps: A, co-blending solutions to prepare master batch: dissolving 100 parts by weight of polyvinylidene fluoride into N,N-dimethyl formamide to obtain a solution I; ultrasonically dispersing 10 parts by weight of boron nitride into the N,N-dimethyl formamide to obtain a solution II; dispersing 1.6-2 parts by weight of carbon nanotube into the N,N-dimethyl formamide to obtain a solution III; mixing the solution I, the solution II and the solution III, and performing ultrasonic treatment to obtain a mixed solution; heating the mixed solution to 70-100 DEG C, preserving heat for 2-4 hours, and putting the mixed solution into a vacuum oven for drying to obtain the master batch; B, melt blending: extruding and granulating the master batch in a micro-extruder at the temperature of 190 DEG C for 6-10 minutes to obtain the polymer-based composite material. The composite material prepared with the method has the advantages of extremely high dielectric constant, low dielectric loss, high heat conductivity, simple process and contribution to large-scale production.

The invention relates to a magnesium-aluminum-based layered double hydroxide / SBR composite modifier, modified asphalt and a preparation method of the modifier. The magnesium-aluminum-based layered double hydroxide / SBR composite modifier is prepared by mixing SBR, surface organic modified magnesium-aluminum-based layered double hydroxide, an accelerant and a compatilizer in a high speed, and performing extrusion pelleting. The ultraviolet aging resisting SBR modified asphalt is prepared by fusing and blending asphalt and the magnesium-aluminum-based layered double hydroxide / SBR composite modifier. The magnesium-aluminum-based layered double hydroxide / SBR composite modifier is prepared by performing composite reaction on the surface-modified magnesium-aluminum-based layered double hydroxide, the SBR, the accelerant and the compatilizer; after the composite modifier is added into the asphalt, the ultraviolet aging resistance of the SBR and the asphalt can be remarkably improved, long-term stable dispersion of the SBR and the magnesium-aluminum-based layered double hydroxide in the asphalt is achieved, and the prepared SBR modified asphalt is excellent in ultraviolet aging resistance.

The invention relates to the technical field of ceramic manufacturing equipment, in particular to ceramic grouting equipment with an automatic feeding function. The ceramic grouting equipment with the automatic feeding function comprises a feeding system, a grouting system, operating platforms and a waste recovery system. The feeding system comprises a grout mixing tank, a feeding pipeline and a booster pump. The grouting system comprises a rack, slide rails and a grouting device. The waste recovery system comprises a waste collecting barrel, a grout pumping and feeding pipeline, a grout pump and a waste mixing tank. By adoption of the ceramic grouting equipment with the automatic feeding function, the situation that the grout is not prone to sediment, the flow quantity and flow speed can be adjusted, different grout on different stations in the same workshop can operate, the billet quality can be improved, and the grout can be automatically recycled; and no manual cleaning is needed, the operating intensity is relieved, and the waste utilization rate is increased.

The invention belongs to the field of municipal engineering technologies, and especially relates to a water purifying and water storing unit, and a water purifying and water storing system provided with the water purifying and water storing unit, which are used for collection, filtration, purification treatment and storage of rain water. The container wall of a water container of the water purifying and water storing unit is water resistant; a water discharging well and invisible wells around the water discharging well are arranged in the water container; pervious structures are employed for the well walls of the water discharging well and the invisible wells; spaces between the water discharging well and the container wall of the water container, and spaces between the invisible wells and the container wall of the water container are all filled with a filling material; and a pervious surface bed is arranged on the invisible wells and the filling material. A combination mode of ventilation anti-seepage treatment and concrete floor is employed for the well bottom of the water discharging well and the invisible wells, so that water will not deteriorate, and subsidence of the water discharging well and the invisible wells will not happen; hexagonal honeycomb structures are employed for the water discharging well and the invisible wells, so that the structures are stable, specific surface area is large, carriers are provided for biofiml formation, water processing performance is obtained, and no energy is consumed.

The invention relates to an industrial plant foundation strengthening method, belongs to the field of earthquake-proof strengthening technologies and discloses a foundation processing method. The method comprises the steps of using a newly-increased steel pipe pile and an upper newly-increased concrete bearing platform, fixedly connecting the newly-increased steel pipe pile and the upper newly-increased concrete bearing platform with a primary foundation bearing platform through steel bar anchors, and commonly bearing a newly-added layer structure, so that steadiness and safety of an added layer improving engineering are ensured; and the problems of personnel and property losses caused due to earthquake which is caused due to poor anti-seismic property of original houses in improvement of old plants are solved fundamentally.

The invention discloses a plugging agent, a preparing method thereof and an oil well casing leakage stopping and channeling blocking method, and relates to the field of oil field construction. The problem that an oil well casing is poor in casing leakage stopping and channeling blocking effect is effectively solved. Raw materials of the plugging agent include a drying agent and water by the mass ratio of (0.8-1.6):(0.8-1.2), wherein the drying agent is prepared from, by mass, 30-50% of ultrafine micropowder, 30-50% of structure formation agent, 4-16% of curing agent, 2-8%of filler and 2-8% of modifier. The plugging agent has the advantages of being high in residing performance, interface bonding strength and channeling resisting strength, small in usage amount and short in construction period in oil well casing leakage stopping and channeling blocking construction.

The invention discloses a household balcony vegetable planting box. The household balcony vegetable planting box comprises a box body, wherein a first partition plate and a second partition plate are respectively arranged inside the box body, and overfall gaps which are equidistantly arranged are formed in the first partition plate, a water storage tank is arranged between the first partition plate and the second partition plate, a feeding tank is formed between the second partition plate and the inner wall of the box body, a water through pipe is arranged at the bottom of the feeding tank, a planting chamber is formed between the box body and the first partition plate, a soil layer is arranged in the planting chamber, a water filtration partition plate is arranged at the bottom of the soil layer, an L-shaped bottom plate is connected with the lower side of the water filtration partition plate, a water storage chamber is formed between the water filtration partition plate and the L-shaped bottom plate, two supporting columns are fixedly connected on the lower surface of the L-shaped bottom plate, and the bottom parts of the two supporting columns are both fixedly connected to the inner wall of the bottom of the box body. The household balcony vegetable planting box disclosed by the invention can effectively reduce the loss of fertilizers and soil, and also can avoid the vegetable root necrosis, so that water can be recycled to prevent soil hardening.

The present invention relates to a composition for fire-resisting and fire-extinguishing with pro-environmental characteristic. More particularly, the present invention relates to the composition comprising monobasic sodium phosphate, dibasic ammonium phosphate, borax, boric acid, olyoxyalkylated alkyl phosphoric acid ester and water.

The invention discloses a thick slurry stirring chemical combination bucket. The thick slurry stirring chemical combination bucket comprises a bucket body, a motor, a speed reducer and a stirring shaft, wherein the stirring shaft is inserted in the bucket body; the motor and the speed reducer drive the stirring shaft to rotate; the stirring shaft is sequentially provided with a bottom sweeping stirrer, a multi-stage series lower jet stirrer, a bidirectional jet stirrer and a suspension lower jet stirrer from bottom to top; the suspension lower jet stirrer is limited by upper and lower location steps, and capable of floating up and down. The thick slurry stirring chemical combination bucket disclosed by the invention has the characteristics of being low in energy consumption, great in material circulation, not liable to sink to the bottom, and capable of being started by a light load even if material sedimentation is caused by long-time power failure, as well as has a wide application prospect.

The invention discloses a method for making grapefruit drinks. In the method, transparent and clear grapefruit juice is prepared by clarifying and debitterizing grapefruit juice by a modern enzyme engineering technique and a molecular embedding technique, and the transparent and clear grapefruit juice is mixed with high-quality wax and sweetener to prepare the grapefruit drinks with excellent taste. The method comprises: clarifying grapefruit juice by using pectinase; removing the bitter taste of the grapefruit juice by using hydroxypropyl-beta-cyclodextrin; filtering by using a membrane separation technique; and mixing with highfructose corn syrup and high-quality wax. The drinks thus made have long shelf life, are insusceptible to precipitation and turning muddy when stored for a lone time and have high transparency. The grapefruit drinks processed by using the method are clear, transparent and bitter-free and have excellent mouthfeel. The products processed by the method have auxiliary protective effect on people with chemical liver injuries and hyperlipaemia and sub-health people.

The invention discloses a fuel cell cooling liquid and a preparation method thereof, wherein the fuel cell cooling liquid comprises, by mass, 2-97% of an ethylene glycol organic liquid, 2-97% of deionized water, 0.1-13% of heat conduction powder, 0.1-5% of a surfactant and 0.2-1% of an antifoaming agent. The method comprises: carrying out high frequency ultrasonic oscillation and mechanical stirring treatment on the raw materials, so that the periphery of heat conduction powder particles is compactly coated with the surfactant so as to form a stable suspended mixed liquid; and removing conductive ions in the liquid through anion-cation exchange resin treatment to obtain the cooling liquid for the fuel cell. The fuel cell cooling liquid prepared by the method has good thermal conductivity and excellent insulativity, can meet the use requirements of the fuel cell cooling liquid, is simple in preparation process, easy in parameter control and low in cost, and is suitable for batch production and commercial popularization.

The invention relates to magnalium-based layered double-hydroxide / SBS composite modifier, modified asphalt and a preparation method of the magnalium-based layered double-hydroxide / SBS composite modifier. The composite modifier is prepared by mixing SBS, surface organic modified magnalium-based layered double-hydroxide, an accelerant and a compatilizer at high speed, extruding and pelleting. The ultraviolet aging-resisting SBS modified asphalt is prepared by melting and commixing asphalt, the magnalium-based layered double-hydroxide / SBS composite modifier and a stabilizer. The magnalium-based layered double-hydroxide / SBS composite modifier is prepared by compounding and reacting the magnalium-based layered double-hydroxide, SBS, the accelerant and the compatilizer, the ultraviolet aging resistance of SBS and asphalt can be remarkably improved after the composite modifier is added into asphalt, long-term stable dispersion of SBS and magnalium-based layered double-hydroxide in asphalt is achieved, and the prepared SBS modified asphalt is excellent in ultraviolet aging resistance.

The invention discloses a softening technology of wool keratin-modified pure cotton fabric. The technology comprises the following steps: (1) carrying out ultrasonic treatment on the pure cotton fabric at 75-85 DEG C and 235-245W for 0.5-0.8 hour to obtain the pure cotton fabric subjected to ultrasonic treatment; (2) dipping the pure cotton fabric subjected to ultrasonic treatment into a wool keratin solution for modified treatment, and taking out and drying the pure cotton fabric to obtain the modified pure cotton fabric; and (3) dipping the modified pure cotton fabric into a mixed solution of a softening agent and a penetrant for softening finishing, and taking out and drying the pure cotton fabric to obtain the soft wool keratin-modified pure cotton fabric. The obtained wool keratin-modified pure cotton fabric is soft; the softness is not reduced after long-term use; and the softening technology is simple and high in process efficiency.

The invention relates to a preparation method of a black extinction electrophoresis aluminum profile. The preparation method comprises: 1, sequentially carrying out degreasing, water washing, alkali washing, water washing, neutralizing and water washing on a formed substrate, and carrying out anodic oxidation to form an oxidation film on the surface of the substrate; 2, directly performing hot pure water washing on the obtained substrate without electrophoresis coloring; 3, carrying out black extinction electrophoresis paint coating on the substrate obtained in the step 2; and 4, sequentially carrying out pure water washing, draining and curing on the profile obtained in the step 3, discharging out of the frame, and packaging to obtain the finished product black extinction electrophoresis aluminum profile. According to the present invention, the method has advantages of excellent coating operation, high production economy, and excellent coating film performance.

The invention provides an ibuprofen oral suspension comprising the following ingredients based on the concentration: ibuprofen of 20 to 40 g / L and dispersion cellulose of 13 to 30 g / L. The preparation method of ibuprofen oral suspension comprises the following steps: (1) heating glycerine, adding a preservative; (2) adding the dispersion cellulose into water, then dispersing uniformly; (3) mixing pure water with a wetting agent; (4) thoroughly mixing a sweetener, a flavouring agent and the preservative solution which is prepared in the first step with the suspension system which is obtained in the second step; (5) mixing a micronized ibuprofen with the dispersion solution which is obtained in the third step uniformly, then adding the mixture obtained therein into the mixture obtained in the fourth step, and then stirring at high speed and simultaneously infusing nitrogen to obtain an ibuprofen oral suspension. The ibuprofen oral suspension provided by the invention is a thixotropic colloid comprising ibuprofen particles which are arranged evenly, and is characterized in that the ibuprofen oral suspension can be changed to a low-viscosity liquid by shaking before taking, the problem of common suspension which has high viscosity and agglomeration after placing for a long time is improved, the accuracy of dosage is ensured and the stability of the ibuprofen oral suspension is good.

The invention discloses a plant growth regulator containing nanometer titanium dioxide and a preparation method thereof, relating to a plant growth regulator and a preparation method thereof. The invention solves the problems of low use density, low absorption and utilization ratio and poor adhesive force of nanometer titanium in the existing plant growth regulator containing nanometer titanium dioxide. The growth regulator is prepared from the nanometer titanium dioxide, adhesive, water, dispersing agent, penetrating agent and additive. The preparation method is as follows: sequentially adding the adhesive, the penetrating agent, the dispersing agent, the nanometer titanium dioxide and the additive in water; continuously stirring for 1-2 minutes to obtain the plant growth regulator containing the nanometer titanium dioxide. The plant growth regulator of the invention can accelerate plant growth and is used for crop increment.

The invention discloses a laser sensor and an airborne particle counter with the laser sensor. The laser sensor which comprises a semiconductor laser which is used as a laser light source is characterized in that: a slit diaphragm which is arranged under the irradiation of the laser light source allows the laser light source to form a photosensitive area; a photoelectric receiver is arranged in the photosensitive area at a vertical direction; a suction nozzle and a venting nozzle which is symmetric with the suction nozzle are arranged in the photosensitive area at the vertical direction; and the suction nozzle comprises an internal sampling tube for conveying a sampling gas and an external protection tube which is arranged on the outboard of the internal sampling tube and is used for providing the protection gas. By adopting the airborne particle counter, large granular airborne particles with the diameter of over 10mum in air can be accurately detected.

The invention discloses an adjustable type injection mold convenient for formation. The middle part of a movable plate is equidistantly provided with tapered holes; one end of the movable plate is fixedly connected with an upper inclined block; the end, far away from the upper inclined block, of the middle part of the movable plate is fixedly connected with a reset spring; a lower inclined block is installed at a position on one side of the upper inclined block and inside a movable groove; the bottom end of the lower inclined block is connected with a top block; an embedded block is fixedly installed at the middle part of the bottom end of an upper mold base; and the middle part of the embedded block is equidistantly provided with second discharging holes. The adjustable type injection mold disclosed by the inventio0n is scientific and reasonable in structure and safe and convenient in use; by cooperative use of first discharging holes and the second discharging holes, raw materials are injected more uniformly; uneven injection easily causes generation of air bubbles in an injection-molded part to affect normal use of the part; the percent of pass of processing of the part is increased; meanwhile by cooperative use of the movable plate and the reset spring, remaining materials for injection molding are cut off by the movable; the length of the remaining materials for the injection-molded part is shortened; and raw materials are saved.

The invention discloses a hair composition containing a marine bio-active substance. Specifically, the hair composition consists of D-glucosamine hydrochloride, marine shellfish peptide, fish proteinpeptide, algal polysaccharides and piroctone olamine, and furthermore, the hair composition can be assisted by olive oil and panthenol. The hair composition provided by the invention can serve as a hair shampoo, such as an anti-dandruff shampoo, having a special dandruff removal function; and after the use of the hair composition, a scalp cuticle structure and a normal barrier function can be repaired. The hair composition has multiple functions such as taking a lasting moisturizing effect, balancing oil secretion, inhibiting bacteria, diminishing inflammation, removing dandruff, relieving itching and the like; and in addition, the hair composition can also obviously improve hair quality, reduce furcation and relieve alopecia, and the hair composition can simultaneously conduct dandruff removing and hair nourishing.

The invention provides a degradable drainage board, a material compound and a preparation technology, and belongs to the technical field of drainage boards. A degradable board body is prepared from, by weight, 65-75% of plant fibers and 25-35% of a solid bonding agent, the degradable board body is coated with a layer of a degradable filter net, and therefore the degradable drainage board can be obtained. The degradable drainage board has the advantages that the obtaining of raw materials is easy, the cost is low, the preparation method is simple, the implementation is easy, the prepared drainage board is degradable, the degraded drainage board loses a drainage function, so that a post construction foundation does not sink, and the environmental-protection and energy-saving performance is good.

The invention discloses a method for preparing mixed crystal nanometer titanium dioxide suspension from double precursors, which comprises the following steps of: (1) preparing TiCl4 solution and TiCl3 solution which have the titanium ion concentration of between 0.5 and 1.0 mol / L; (2) adding inorganic alkali solution into deionized water, adding mixed solution of the TiCl4 solution and the TiCl3 solution until the pH value of the solution is between 1.0 and 2.5, crystallizing at the constant temperature of between 50 and 100 DEG C for 2 to 10 hours to obtain a white precipitate product, and filtering and washing to obtain a nanometer titanium dioxide wet sample; and (3) diluting the nanometer titanium dioxide wet sample by adding the deionized water, and performing ultrasonic dispersion to obtain the mixed crystal nanometer titanium dioxide suspension. The method is simple, the equipment requirement is low, the photocatalytic capacity of titanium dioxide generated by reaction is high, and the prepared suspension is stable. In addition, the suspension is prepared by using the wet sample directly, so that agglomeration can be reduced and prevented; and the suspension is diluted by adding the water and can be dispersed uniformly without ultrasonic.

The invention relates to magnalium-based layered double-hydroxide / SBS composite modifier, modified asphalt and a preparation method of the magnalium-based layered double-hydroxide / SBS composite modifier. The composite modifier is prepared by mixing SBS, surface organic modified magnalium-based layered double-hydroxide, an accelerant and a compatilizer at high speed, extruding and pelleting. The ultraviolet aging-resisting SBS modified asphalt is prepared by melting and commixing asphalt, the magnalium-based layered double-hydroxide / SBS composite modifier and a stabilizer. The magnalium-based layered double-hydroxide / SBS composite modifier is prepared by compounding and reacting the magnalium-based layered double-hydroxide, SBS, the accelerant and the compatilizer, the ultraviolet aging resistance of SBS and asphalt can be remarkably improved after the composite modifier is added into asphalt, long-term stable dispersion of SBS and magnalium-based layered double-hydroxide in asphalt is achieved, and the prepared SBS modified asphalt is excellent in ultraviolet aging resistance.

Carbon dioxide is purified through the use of catalytic oxidation. Carbon dioxide is exposed to at least one catalyst, oxidizing at least a portion of the nonvolatile organic residues to form purified carbon dioxide that is directed to an application. Carbon dioxide that is in a near-critical, critical, or supercritical phase can be exposed to the catalyst.

The invention discloses disperse deep blue dye color paste and a preparation method thereof. The disperse deep blue dye color paste is prepared from disperse deep blue dyes, a reverse salt, a water-soluble nonionic surface active agent, a nonionic thickening agent, an oil-soluble nonionic surface active agent, ethyl alcohol, starch, acetic acid vinyl ester, acrylic acid, emulgator, urea, a corrosion remover, a dispersing agent, glacial acetic acid and chitosan, and further is prepared from a penetrating agent, a levelling agent and a migration inhibitor. According to the disperse deep blue dyecolor paste and the preparation method thereof, the dispersing agent and the disperse deep blue dyes are mixed evenly, the water-soluble nonionic surface active agent and the oil-soluble nonionic surface active agent are added to be ground to 50-700 nm, the obtained color paste is good in stability, moderate in viscosity, capable of being dispersed in water for a long time and not prone to sediment, does not need water washing, achieves energy saving, environmental protection and emission reduction, has good dye transmissibility and permeability, and has high transfer rate and good washing fastness.