134results about How to "Improve quick-drying performance" patented technology

The invention discloses a preparation method of a one-way wet conduction nano-fiber multilayer composite membrane with the wettability gradient. The method comprises the following steps that hydrophilic nano materials are dispersed in solvent, the nano materials are dispersed uniformly through ultrasound, a hydrophilic polymer is dissolved in the dispersing agent, a spinning solution A1 is obtained, and a hydrophilic nano-fiber membrane is deposited on a receiving base material through an electrostatic spinning method; hydrophilic nano materials are dispersed in solvent, the nano materials are dispersed uniformly through the ultrasound, a hydrophilic polymer is dissolved in the dispersing agent, and a spinning solution A2 is obtained; a hydrophobic polymer is dissolved in solvent, and a spinning solution B1 is obtained; the two spinning solutions are deposited on the hydrophilic nano-fiber membrane to form at least one diversion layer through the electrostatic spinning method; a hydrophobic polymer is dissolved in solvent, a spinning solution B2 is obtained, a hydrophobic nano-fiber membrane is deposited on the diversion layers through the electrostatic spinning method, and the one-way wet conduction nano-fiber multilayer composite membrane with the wettability gradient is obtained.

The invention discloses a modified polyester fiber prepared by carrying out blended spinning on functional copolyester master-batches containing moisture-absorbing radicals and inorganic nano-powder and conventional polyester chips, the section of the fiber is special-shaped and comprises micropores, the side surface of the fiber comprises a structure of longitudinal grooves and micro-pits, and a variety of fabric can be prepared by carrying out the blended spinning on the modified polyester fiber and natural fiber according to weight proportion. The fabric has the excellent functions of wetting by sweat, moisture transmitting and quick drying, thereby greatly improving the wearing comfort of the polyester fiber fabric.

The invention discloses conductive graphite cream and a preparation method thereof, which solve the technical problem of improving dispersibility of graphite cream. The conductive graphite cream comprises materials including, in weight percent, 10-30% of conductive graphite, 1-30% of matrix resin, 0.1-5% of conductive polymer auxiliaries, 0.1-5% of dispersing auxiliaries and the balance solvents. The preparation method includes the steps: adding the conductive polymer auxiliaries into the solvents to obtain solution 1; adding the matrix resin into the solvents to obtain solution 2; adding the conductive graphite into the solution 2; adding the dispersing auxiliaries into the solution 2 for ball-milling; adding the solution 1 into solution 3; and performing ultrasonic oscillation, high-pressure dispersion and stirring to obtain the conductive graphite cream. Compared with the prior art, the conductive graphite cream and the preparation method have the advantages that nano carbon materials are added, ball-milling, ultrasonic oscillation and high-pressure dispersion are performed for assisting so that the conductive graphite cream is uniformly dispersed, and the preparation method is simple and low-cost.

The invention relates to the technical field of advertisement display boards, in particular to outdoor energy-saving advertising equipment. The equipment comprises an advertising board, a sweeping device, a mounting base, a dust sensor and a controller; the mounting base is of a box structure and comprises an upper box body and a lower box body, a partition plate is arranged between the upper box body and the lower box body, the advertising board is arranged on the mounting base, a rainwater collecting box, a solar electromagnetic board and a wind-driven generator are arranged on the top of the advertising board, the power output ends of the solar electromagnetic board and the wind-driven generator are connected with a storage battery which is arranged inside the upper box body and supplies electricity for the whole equipment, a drain hole is formed in the bottom of the rainwater collecting box, a water diversion pipe is connected to the drain hole, the lower end of the water diversion pipe penetrates through the partition plate and leads to the lower box body, a water level sensor is arranged inside the lower box body, and a valve is arranged on the water diversion pipe. By means of the outdoor energy-saving advertising equipment, the problem that due to the fact that nobody cleans a traditional advertising board for a long time, the advertisement display effect is affected can be solved, and the function of automatically cleaning the advertising board is achieved.

The invention relates to a water soluble anti-rust agent on the surface of ferrous metal, which comprises the following components: 2 to 10 weight percent of barium petroleum sulfonate and / or barium dinonyl decyl sulfonate, 1 to 6 weight percent of sodium molybdate and / or amine molybdate, 0 to 10 weight percent of sebacic acid, 2 to 10 weight percent of polyacrylic ester, 3 to 20 weight percent of triethanolamine oleic soap and / or 2 to 6 weight percent of polyoxyethylenesorbitan monooleate, 0 to 15 weight percent of sodium alkylsulfonate, 0 to 8 weight percent of glycerin and the balance of water or machine oil. Compared with the conventional water soluble anti-rust agent, the water soluble anti-rust agent of the invention has the advantages of short film forming time, firm film forming adsorption and good anti-rust effect; the actual anti-rust period can reach 3 to 6 months; the formed film is thin and only 3 to 5 microns; common workpieces do not need film removal and can be directly assembled and coated; the film removal is convenient, and the film is only soaked and rinsed in mild water over 50DEG C and then can be removed quickly; and the anti-rust agent has no component containing toxic and harmful substances, does not contain phosphorus, has the advantages of good environmental protection and no pollution to the environment, and is the environment-friendly water soluble anti-rust agent.

The invention discloses a preparation method for isomeric alcohol polyoxypropylene polyoxyethylene ether. The preparation method comprises the following steps: (1) with isomeric alcohol as a starting agent and an alkaline earth metal compound as a catalyst, adding epoxypropane and carrying out a condensation reaction; and (2) then adding oxirane and carrying out a condensation reaction so as to prepare the isomeric alcohol polyoxypropylene polyoxyethylene ether. Thus, the isomeric alcohol polyoxypropylene polyoxyethylene ether prepared by using the method provided by the invention has the characteristics of low foam, low temperature thin fluidity, strong wetting performance, good permeation performance, etc.

The invention relates to a soft and insulation high wet-absorption fabric, which is prepared by postprocessing including boiling gray fabric, wherein the gray fabric is prepared by interweaving warp yarns and weft yarns; the warp yarns and / or the weft yarns adopt covering yarns with yarn cores being modified polyester fiber; the modified polyester fiber is dissolved during the boiling process to enable the warp yarns and / or the weft yarns adopting the covering yarns to have a hollow structure finally; the modified polyester fiber is modified polyester filament yarns dissolved under the alkaline condition. According to the fabric provided by the invention, the conduction of heat can be reduced, and more heat can be reserved, and a heat insulation function is realized. According to the hollow structure, the comfort in wearing and use is improved, meanwhile, the water absorbing capacity and the quick dry capacity of the fabric are improved, and better comfortable and good feeling is brought.

The invention relates to a moisture-absorption and sweat-releasing finishing agent for chinlon, and a preparation method thereof. The finishing agent is non-ionic type polyetheramide copolymer, and the aqueous solution is yellow to deep yellow liquid. The finishing agent has a polyether chain section, so that the finished chinlon textile has excellent moisture absorption and fast drying properties; the molecular structure of the finishing agent comprises an amide chain section formed by adipic acid and hexanediamine, by utilizing the structure similarity principle, the amide chain section in the molecular structure of the finishing agent and the fiber molecular chain of chinlon form co-crystallizing under the high-temperature baking condition and are inlaid on the surface of the fabric, so that the finished chinlon fabric has durable moisture absorption and fast drying properties; the reactive functional group in molecules of the finishing agent can generate crosslinking film forming action in the baking and finishing processes, the moisture absorption and fast drying durability and dry-wet friction fastness of the finished fabric can be further enhanced on the basis of co-crystallizing action. In addition, the hand feeling of the fabric can be favorably improved by the organosilicon chain section in the molecular structure of the finishing agent and the methyl in the polyether chain section.

The invention provides a full-shape casting coating and a preparation method thereof, relating to the field of casting. The full-shape casting coating includes the following raw materials in parts by weight: quartz powder, olivine powder, corundum powder, sodium bentonite, lignin sulfonic acid, and dextrin powder , sodium carboxymethyl cellulose, sodium benzoate, hollow glass microspheres, aluminum sulfate, polyvinyl alcohol, silica sol, iron oxide powder, n-octanol, graphite powder, zircon powder, attapulgite, water reducing agent and water The preparation method comprises the following steps: (1) weighing raw materials, (2) preparing each mixed solution in turn, and (3) adding to a reaction kettle and stirring in turn. The invention solves the problem that the existing solid casting coatings generally have strong wear resistance, high adhesion, excellent air permeability and quick drying under high temperature and low temperature environments, which makes them unable to meet the production requirements of large castings. question.

The invention provides anti-rust spraying fluid for metals, which is composed of the following components in parts by mass: 12-15 parts of triethanolamine, 4-5 parts of borax, 1-2 parts of sodium molybdate, 3-5 parts of sodium bisulfate, 1-2 parts of diethanolamine, 2-3 parts of isobutanol, 0.5-1 parts of isopropyl alcohol, 0.5-1 parts of sodium chloride, 8-12 parts of ethanol, and 85-95 parts of water. When the anti-rust spraying fluid for metals disclosed by the invention is splayed on a metal workpiece, an anti-oxidation protection film can be formed on the surface of the metal workpiece, and the film is compact in tissue structure and fine in particles, so that a rust protection effect is achieved; the anti-rust spraying fluid for metals disclosed by the invention is short in film-forming time and good in fast drying property, and can form a film in 2-3 minutes; and in a normal environment, metals can be prevented from rusting in 5-6 months.

The invention provides a monocomponent polyurethane coating, and relates to the field of coating. The monocomponent polyurethane coating comprises, by weight, the following components of 20 to 40 parts of diisocyanate, 40 to 65 parts of polyether, 50 to 75 parts of chlorcosane, 35 to 60 parts of chlorcosane, 20 to 50 parts of xylene, 15 to 25 parts of butyl acetate, 50 to 90 parts of padding, 10 to 20 parts of curing agent and 40 to 80 parts of catalyst. The acid value of the chlorcosane is smaller than 12 mg KOH / g, and the curing agent is a mixture of acetone-ethidene diamine condensation compound and methyl isobutyl ketone-ethanol amine condensation compound. The provided monocomponent polyurethane coating has the advantages that the curing speed is high, blistering in the crosslinking process and the storage process can be avoided effectively, and the practicability is high. The invention further provides a preparation method for the monocomponent polyurethane coating.

The invention provides water-borne acrylic-modified alkyd resin emulsion which comprises the following components in percentage by weight: 15-25% of polyester modified alkyd resin, 10-20% of a glycol ether solvent, 5-20% of a propylene glycol ether solvent, 0-5% of n-butanol, 5-8% of vinyl monomer, 15-25% of acrylic monomer, 2-6% of BPO, 4-7% of organic amine and 21% of deionized water, wherein the polyester modified alkyd resin comprises the following components: 12-20% of rosin, 22-30% of unsaturated fatty acid, 25-35% of polyester, 3-8% of diethylene glycol, 1-5% of pentaerythritol, 7-12% of maleic anhydride, 3-10% of xylene, 0.5-2.5% of sodium hydrogen sulfite and 10% of a glycol ether solvent and a propylene glycol ether solvent. Compared with the prior art, the water-borne acrylic-modified alkyd resin emulsion has the benefits of higher environment friendliness and better water solubility.

The invention relates to water-based polyurethane modified acrylic ester emulsion and a preparation method thereof, and water-based wood coating. The water-based polyurethane modified acrylic ester emulsion is prepared from the following raw materials in percentage by weight: 6 to 20 percent of a polyol polymer, 4 to 20 percent of isocyanate, 0.1 to 3 percent of a micromolecular chain extender, 0.5 to 4 percent of a hydrophilic chain extender, 0.1 to 1.5 percent of an after chain extender, 0.5 to 3 percent of a hydroxy acrylic acid monomer, 10 to 30 percent of an acrylic acid monomer, 0.05 to0.5 percent of an initiator, 0.5 to 3 percent of an epoxy organosilicon monomer, 0.1 to 4 percent of an organic crosslinking agent, 0 to 4 percent of a metal crosslinking agent, 0.5 to 2 percent of alkali and the balance of water. The emulsion has high stability; and after the emulsion is prepared into the water-based wood coating and the wood product is coated with the coating, the drying speed is high and the adhesion resistance is excellent.

The invention discloses a solvent-free composite PET / PE (Polyethylene Terephthalate / Polyethylene) film and a preparation process thereof. The solvent-free composite PET / PE film comprises an outer layer, a bonding layer and a base layer, wherein one side of the bonding layer is bonded with the outer layer, and the other side of the bonding layer is bonded with the base layer; the outer layer is prepared from PET resin; the base layer is prepared from PE resin; the bonding layer is prepared from a solvent-free bonding agent; the solvent-free bonding agent is compounded by a component A and a component B; the component A comprises cashew nut shell oil modified phenolic resin, an ethylene-vinyl acetate copolymer and oxetane; the component B comprises aliphatic amine; the preparation process comprises the following steps: coating a base layer film with the solvent-free bonding agent to obtain the bonding layer; compounding an outer layer film with the bonding layer; curing an obtained composite film semi-finished product to obtain the solvent-free composite PET / PE film. The solvent-free composite PET / PE film prepared by the process provided by the invention has the advantages of thin thickness, high transparency, high peeling strength and good packaging effect.

The invention discloses transferring paper applied to sublimation type ink jetting, printing and transferring. In the transferring paper, a filter resistant layer for sublimation type ink for jetting and printing is coated on one surface of body paper and a back layer is coated on the other surface of the body paper. The sublimation type ink jetting and printing transferring paper has high sublimation printing ink absorption property and quick drying property when ink is jetted to print an image, and the image is high in reproducibility; furthermore, the transferring paper has high transferring rate during thermal transferring; and the image of a printed material has high color saturation, image resolution and reproducibility.

The invention relates to single-component high-adhesion quick-drying repair putty which is filling and leveling-up repair putty for defects and damages on surfaces such as various metals and woodware. The single-component high-adhesion quick-drying repair putty comprises the following components: nitrocellulose, toughened resin, adhesion promoting resins, a thixotropic agent, filler, pigment, a plasticizer and a solvent. The single-component high-adhesion quick-drying repair putty disclosed by the invention has the characteristic that mixing is not needed, the repair putty is convenient to use, scraping performance and quick-drying performances are good, and the toughness is good due to the addition of the toughened resin, for example alkyd resin. On adhesion, various adhesion promoting resins are added to bring a synergetic effect of the various adhesion promoting resins into play, so that the adhesion of the single-component putty is greatly strengthened. Meanwhile, the solvent adopts low-smell and low-toxicity propylene glycol monomethyl ether as the solvent, and therefore, the single-component high-adhesion quick-drying repair putty is relatively environment-friendly in comparison with the conventional nitrocellulose putty. The putty disclosed by the invention is used for filling up small scratches for performing small repair, and also can be used for large-area quick repairing.

The invention relates to stripe-shaped aluminum pigment for printing ink and a preparation method thereof and belongs to the field of chemical engineering. The stripe-shaped aluminum pigment is prepared from the following ingredients by weight: 85 parts of aluminum, 15 parts of carrier and 0.5 to 3 parts of aid. A forming technology is mainly achieved through a twin-screw extruder; the solid content of a final product is improved by a vacuum dry static roasting mode after extrusion and formation, so that the aluminum pigment is achieved; the aluminum pigment has very good dispersion in commonorganic solvents of fat removing hydrocarbon solvents and also has very good compatibility in common printing ink resin systems; compared with ordinary silver paste, the aluminum pigment has the advantages of better dispersion, quick dryness and excellent adhesive force.

The invention discloses an aqueous anti-counterfeiting stamp ink with stronger anti-counterfeiting performance. The aqueous anti-counterfeiting stamp ink comprises the following components in percentage by weight: 60%-70% of aqueous polyurethane, 15%-25% of infrared transformed fluorescent powder, 1%-2% of super-concentrated slurry, 6%-8% of light calcium carbonate, 6%-8% of polyethylene wax and 2%-4% of mineral oil. The aqueous anti-counterfeiting stamp ink has the advantages of stable stamping performance, good detection on information provided by anti-counterfeiting feature substances, long-term preservation and rapid and accurate true and false discrimination by adopting a discriminating system for collecting stamp features.

The invention discloses a preparation method of a double-layer one-way moisture-conducting micro-nano fiber membrane based on a near-field direct writing and solution electrospinning technology. The preparation method comprises the following steps of (1) preparing a layer of disordered hydrophilic micro-nano fiber membrane A through a solution electrospinning method; and (2) carrying out melt spinning by using melt direct writing equipment, and preparing an inner-layer hydrophobic micro-nano fiber membrane B on the hydrophilic micro-nano fiber membrane A. On the basis of solution electrostatic spinning, melt direct-writing spinning is added, so that accurate control over the pore size of the fiber membranes is facilitated, the topological structures of the fiber membranes can be constructed by printing preset grid patterns, then the requirement for permeation of liquid drops with different diameters is met, and the moisture absorption efficiency is improved. The micro-nanofiber membrane with an excellent one-way moisture guiding function can be prepared by combining the solution electrostatic spinning and the melt direct-writing spinning, the moisture absorption rate is adjusted, and the one-way moisture guiding performance of the micro-nano fiber membrane is further improved. The composite fiber membrane has a huge application prospect in the aspects of sportswear, paper diapers and medical dressings.

An air dryer includes a dryer body, a wind-collecting nozzle mounted in front of the dryer body. The wind-collecting nozzle includes a wind-collecting nozzle body communicated with the dryer body, and has a plurality of air openings spacedly formed thereon. Two blowing pieces are supported by the wind-collecting nozzle body, wherein each of the blowing pieces has a blowing outlet. Moreover, a plurality of connecting rims is mounted between the blowing pieces and the wind-collecting nozzle body at the air openings respectively for rotatably connecting the blowing pieces with the wind-collecting nozzle body, so that the air dryer is capable of delivering air at a predetermined orientation through the air openings and the blowing outlets.

The invention relates to quick-drying type water-based gold ink and a preparation method thereof. The quick-drying type water-based gold ink is prepared from, by weight, 30-60% of pigment, 10-40% of connecting materials and 20-50% of a solvent. The connecting materials are one or the mixture of two or more of water-soluble modified cellulose ester, polyvinyl alcohol, acrylic copolymer and polyurethane. The quantitative solvent is placed in a stirring barrel, the quantitative pigment is added into the solvent with stirring, and a pigment solution is obtained after the pigment is completely dissolved; the quantitative connecting materials are added into the pigment solution with stirring, stirring is uniformly carried, and the evenly-scattered water-based gold ink is obtained. Compared with the prior art, the quick-drying type water-based gold ink is applicable to intaglio printing, and the problem that some intaglio printing devices in China cause the ink inverted adhesion due to the fact that an oven has the high temperature and no cooling device exits is solved.

The invention discloses a cleaning device for part machining. The cleaning device for part machining comprises a shell body, a cleaning chamber is arranged in the shell body, a supporting block is installed at the inner bottom of the cleaning chamber, a vertical movable groove is formed in the supporting block, a water collecting hopper is fixedly connected to the upper end of the supporting block, a screen frame is arranged in the water collecting hopper, rotating rods are fixedly connected to the left side and the right side of the screen frame, one end, away from the screen frame, of each rotating rod is rotationally connected with the inner wall of the water collecting hopper, a water collecting box used for sliding up and down is arranged in the movable groove, and the bottom space of the movable groove communicates with the outside through a water outlet pipe. In the cleaning process of the device, the screen frame can be in a rotating state, parts in the screen frame can make uniform contact with cleaning liquid sprayed out of a spray head, the overall cleaning effect is good, in the subsequent air drying process, the screen frame is further in the rotating state, and the air drying effect can be further improved.

The invention discloses low-temperature self-cross-linking waterborne epoxy modified acrylic resin, a preparation method and application thereof. The modified acrylic resin is obtained by reacting a mixed solution formed by mixing part of an initiator, a hard monomer, a soft monomer, a first hydrophilic monomer, a second hydrophilic monomer, epoxy resin, a cross-linking monomer and organosiloxane with the residual initiator dissolved in an organic solvent, adjusting the pH value, then adding binary hydrazide and deionized water, and filtering. According to the invention, the prepared low-temperature self-cross-linking waterborne epoxy modified acrylic resin is compounded with water-based color paste to form single-component water-based ink for printing or ink-jet printing on a low-polarity plastic film, the single-component water-based ink is low in organic solvent content, high in drying speed, small in neutralizer dosage and small in film-forming odor, and is safe and environment-friendly, the coating film has low-temperature self-cross-linking property (less than 60 DEG C) on a plastic film, the tinting strength is good, the adhesion fastness reaches 100%, the preparation process is simple, and the production cost is low.

The invention discloses an environment-friendly waterborne ink and a preparation process thereof. The ink is prepared from, by weight, 60-70 parts of an epoxy-modified acrylic resin, 3-5 parts of an antibacterial agent, 1-3 parts of long oil alkyd resin, 1-3 parts of an antioxidant, 1-2 parts of sodium dodecyl sulfate, 5-10 parts of waterborne organic pigment, 0.5-1 part of an anti-foaming agent,0.5-1 part of a waterborne leveling agent, 0.5-1 part of a waterborne wax emulsion, 0.5-1 part of ammonia water, 90-100 parts of deionized water and 30-40 parts of ethyl alcohol. The prepared environment-friendly waterborne ink has the obvious prominent characteristics in the aspects of coloring power, ultraviolet reflectivity, adhesion and the antibacterial property, by means of the spraying androlling process, the adhesion of the ink is higher, and the pollution is less than that of a conventional method of only spraying the ink.

The invention provides a strong wear resistance full mold casting coating and a preparation method thereof, relating to the field of casting. The strong wear resistance full mold casting coating comprises the following raw materials in parts by weight: quartz powder, olivine powder, corundum powder, sodium bentonite, Lignosulfonic acid, dextrin powder, sodium carboxymethylcellulose, sodium benzoate, hollow glass microspheres, aluminum sulfate, polyvinyl alcohol, silica sol, iron oxide powder, n-octanol, nano attapulgite, nano Ceramic powder, grass ash, diatomite, starch paste, aluminum phosphate, water reducing agent and water; the preparation method comprises the following steps: (1) weighing raw materials, (2) preparing diatomite modified particles, (3) stirring, (4) Reactor stirring. The solid mold casting paint with strong wear resistance prepared by the invention can have the advantages of strong wear resistance, high adhesion, excellent air permeability and quick-drying performance under high temperature and low temperature environments.

The invention provides moisture-absorbing quick-drying fabric and a preparation method thereof. The fabric comprises a hydrophilic inner layer and a quick-drying outer layer, wherein the hydrophilic inner layer is composed of bottom yarn, the quick-drying outer layer is composed of surface yarn, the bottom yarn is combed cotton yarn or twisted yarn of the combed cotton yarn and polyester filamentyarn, the surface yarn is special-shaped superfine denier polyester filament yarn, and the D value and the F value in specification of the bottom yarn are both larger than those in specification of the surface yarn. The preparation method of the fabric comprises the steps that the bottom yarn and the surface yarn are woven into gray fabric, and then after-treatment is carried out on the fabric toobtain the moisture-absorbing and quick-drying fabric; wherein the fabric after-treatment comprises alkali treatment and softening treatment; alkali treatment conditions are as follows: a 1wt.%-2wt.%sodium hydroxide solution is adopted, the bath ratio is 1:50, and the treatment is carried out at 90-100 DEG C for 30-40 minutes; softening treatment conditions are as follows: a silicon-free softening finishing agent is adopted, dipping is performed for 20-30 min at the temperature of 20-30 DEG C, then drying is performed for 3-4 min at the temperature of 100 DEG C, and finally baking is performed for 1-2 min at the temperature of 170-180 DEG C. The fabric has excellent moisture-absorbing and quick-drying properties and good durability.

A polyester false-twist textured yarn, useful as a yarn for woven or knitted fabrics having excellent water-absorbing and quick drying properties, satisfies all of the requirements (1) to (3) shown below: (1) the cross-sectional profiles of a plurality of individual filaments, from which the false-twist textured multifilament yarn is constituted, each have 3 to 6 concavities, and the average number of the concavities having a ratio (H / W) of a largest depth (H) to a largest width (W) of the individual concavities of 0.3 or more is in the range of from 50 to 80% of the total number of the concavities; (2) the average of the cross-sectional profile flatness factors is in the range of from 1.5 to 3.5; and (3) the standard deviation of the cross-sectional profile flatness factors is in the range of from 0.3 to 1.0.

A wind-collecting nozzle mounted on outlet of hairdryer includes a wind-collecting nozzle body (1), and at least two blowing ports are formed on the nozzle body (1). One end of the nozzle body (1) has a plug-and-pull connector (11) for mounting on the outlet of the dryer (3), and the other end has two spaced mounting ports, wherein a blowing piece (2) is mounted at each of the mounting ports, and the free end of the blowing piece (2) has a flat blowing outlet (21). The mounting ports of the wind-collecting nozzle body (1) are circular ports, and a protruding element is formed on each inner side of the mounting ports. Each blowing piece (2) has a circular shaped opening provided at a mounting end thereof where a ring shaped groove is provided therein for receiving the protruding element therein so as to enable the blowing piece rotating about the respective protruding element. Each of the two blowing outlets is in flat shape and the pair of blowing outlets is arranged in a -shaped configuration. The wind-collecting nozzle can improve the effect of quick-drying and can be adjusted according to different situations.

The invention relates to a printing plate-making technology, and particularly relates to a transparent film for waterproof inkjet printing plate-making for the printing plate-making industry. The technical problem to be solved is to provide a transparent film for waterproof inkjet printing plate-making for the printing plate-making industry, which is good in waterproof effect, fast in speed and clear in screen points. The invention provides a transparent film for waterproof inkjet printing plate-making for the printing plate-making industry. The film is provided with a single coating; and the emulsion of the coating comprises polyvinyl alcohol having a main material polymerization degree of 6000-8000 and an alcoholysis degree of 78%, and a nano-scale granulated silica dispersion having a mass concentration of 40%. The product disclosed by the invention is fast in speed in an application process, clear in screen points, reliable in performance, and quite remarkable in effect. The product disclosed by the invention is reasonable in formula, efficient and environment-friendly, capable of filling in the domestic blanks, capable of being widely applied to the advertising industry and the printing plate-making industry, simple in process, and convenient to operate.