63 results about "Polyester mesh" patented technology

The utility model discloses strength detection equipment for polyester net production, and relates to the technical field of strength detection equipment. The strength detection equipment for polyester net production comprises a fixed bottom plate and a strength detection assembly, sliding grooves communicating with the fixed bottom plate are formed in the left side and the right side of the fixed bottom plate correspondingly, the strength detection assembly comprises a double-shaft hydraulic air cylinder, the double-shaft hydraulic air cylinder is fixedly connected to the bottom of the fixed bottom plate, and a first hydraulic pressure sensor is arranged on the double-shaft hydraulic air cylinder; two multi-section hydraulic telescopic rods and a pressing roller are arranged, the pressing roller makes contact with a polyester net, the center of the polyester net is driven to move downwards, and the tension of the polyester net is detected; therefore, the strength detection equipment for polyester net production can detect the tension and the drawing force of the polyester net, the detection equipment does not need to be continuously switched, and the practicability of the strength detection equipment is improved.

The invention relates to the technical field of printing screens, in particular to a pure opening printing screen and a manufacturing method thereof.The manufacturing method of the pure opening printing screen comprises the steps that a polyethylene film and metal mesh cloth are sequentially attached to a polyester mesh, the metal mesh cloth and the polyester mesh are tightly attached together in a hot pressing mode, and composite mesh cloth is formed; the designed processing drawing is guided into a laser machine, and a yarn removing area, a yarn removing path and a yarn removing sequence are set; starting a yarn removing program of the laser machine, completely removing steel wires in the X-axis direction and the Y-axis direction of the yarn removing area of the composite screen cloth, and forming a hollow opening in the yarn removing area of the composite screen cloth; carrying out plate making by adopting the composite screen cloth which is qualified after the product inspection to obtain a pure opening printing screen plate; according to the manufactured pure-opening printing screen, the printing screen can achieve the effect that no steel wire blocks an ink discharging channel in a required effective area, and the situation that the steel wire influences the printability and the printing effect of an ink penetrating area is avoided.

The invention discloses a technological process monitoring method and system for a polyester net, and belongs to the technical field of intelligent control, and the method comprises the steps: obtaining real-time technological parameter data in the production process of the polyester net; inputting the real-time process parameter data into a digital twin model, predicting the mesh forming quality of the next period, and generating predicted quality parameters; collecting a polyester mesh surface image, inputting the polyester mesh surface image into the semantic segmentation neural network, identifying a mesh abnormal region, and generating an actual mesh quality score; on the basis of a deviation value between the predicted quality parameter and the actual mesh quality score and energy consumption per unit yield, constructing a reward signal and inputting the reward signal into a deep reinforcement learning controller; the deep reinforcement learning controller outputs a process parameter adjustment instruction and sends the process parameter adjustment instruction to an execution mechanism; and feeding back the actual mesh quality score to the digital twin model, correcting the error of the prediction quality parameter, and updating the model synchronization precision. The product quality stability is improved.

The utility model relates to the field of screen printing technology, and particularly discloses a full-opening solar cell screen printing plate which comprises a screen frame, a polyester screen and a screen printing metal net. The silk-screen metal net comprises a silk screen and a PI film pasted on the silk screen, silk drawing is conducted on the silk screen corresponding to a printing area to form a grid line area used for printing grid lines, a grid line groove used for printing the grid lines is formed in the PI film corresponding to the grid line area, the grid line groove is formed in the direction perpendicular to the steel wire drawing direction of silk drawing, and the grid line groove is located between every two adjacent steel wires. The grid line areas are formed in the printing area of the silk screen through silk drawing, the grid line grooves are formed in the positions, corresponding to the grid line areas, of the PI film, and the grid line grooves are perpendicular to the drawn-out steel wires and located between every two adjacent steel wires, so that machining of the grid line grooves is not affected by the wire diameter of the silk screen, the machining precision can be effectively improved, and the machining efficiency is improved. Therefore, the printing precision of the grid line is improved.

The utility model relates to the technical field of silk screen processing, in particular to a silk screen fuse machine which comprises a fuse machine body, an installation frame is fixedly connected to the bottom of the inner wall of the fuse machine body, a hydraulic cylinder is installed on the inner wall of the installation frame, and the output end of the hydraulic cylinder is fixedly connected with a top plate. A supporting frame is fixedly connected to the side face of the inner wall of the fuse machine body, a bearing plate is fixedly connected to the outer side of the supporting frame, a fixing plate is fixedly connected to the bottom of the bearing plate, high-temperature-resistant foam is arranged at the bottom of the fixing plate, and a containing assembly is arranged at the top of the top plate. According to the device, the hydraulic cylinder, the heating plate, the heat conducting plate, the silk screen, the polyester screen, the high-temperature-resistant foam and the PE film on the surface are arranged in a matched mode, the fusion effect of the polyester screen, the silk screen and the PE film in a uniform heating state can be good, and the surface of the fusion plate of the polyester screen, the silk screen and the PE film is in a flat state through matching of the heat conducting plate and the high-temperature-resistant foam.

The present invention discloses a weather-resistant waterproof roll material based on modified polyolefin and a manufacturing process, and relates to the technical field of polymer material preparation. The waterproof roll material is obtained by compounding an upper surface layer, a polyester layer, a polyester mesh layer, and a lower surface layer; the upper surface layer and the lower surface layer are both modified polyolefin roll material layers. Advantages: The present invention effectively improves the flame retardant properties of the waterproof roll material by modifying EPDM rubber and ethylene-octene copolymer so that the two are grafted with flame retardant segments; at the same time, through dehydration condensation, the surface of the nano-silica has similar segments to EPDM rubber and ethylene-octene copolymer, thereby improving its compatibility with the matrix resin and enhancing the weather resistance of the overall material.

The present application provides a kind of omega-pentadecalactone / crosslinking polyester autocrine lubricating material and its preparation method and application, belong to organic gel technical field.The present application is prepared by photo-curing reaction omega-pentadecalactone / crosslinking polyester autocrine lubricating material, wherein matrix is the crosslinking polyester containing poly (omega-pentadecalactone), and small molecule is omega-pentadecalactone;Utilize the crystallization-melting of crosslinking polyester network to obtain reversible release omega-pentadecalactone;Due to the time-temperature dependence of polyester network crystallization / melting, further obtain the dynamic control of secretion amount and secretion speed;Omega-pentadecalactone is as crystalline small molecule, control its crystallization-melting phase change and further obtain the condensate state of controllable release;Due to the lubricating effect of omega-pentadecalactone / crosslinking polyester autocrine lubricating material secretion omega-pentadecalactone, controllable friction coefficient and droplet sliding, debonding and other properties are shown.

A scaffold for bone-tissue engineering includes a mesh and a coating on the mesh. The mesh includes a plurality of offset layers of filaments of polyester. The coating covers the mesh and includes magnesium hydroxide / copper oxide nanoparticles suspended in gelatin. A method of constructing the scaffold comprises combining magnesium hydroxide / copper oxide nanoparticles with a gelatin solution and coating a polyester mesh with the combined magnesium hydroxide / copper oxide nanoparticle and gelatin solution.

The utility model discloses a polyester forming net inserting machine and a polyester net, and relates to the technical field of polyester net forming devices. The device comprises a bottom plate, a vertical rod is fixedly arranged on the upper surface of the bottom plate, a fixing plate is fixedly arranged at the upper end of the vertical rod, a driving motor is fixedly arranged on the upper surface of the fixing plate, a first screw rod is rotationally arranged between the lower surface of the fixing plate and the bottom plate, and a transverse rod is arranged on the outer side surface of the first screw rod in a sleeving mode. The rotating disc can be rotated through the semicircular notch, the lantern ring drives the check block to move, the check block can be adjusted to any height position, the height position adjusting flexibility of the check block is improved, the fixing frame can make contact with the check block through the force of the first spring, and before the check block makes contact with the fixing frame, the check block is fixed through the first spring. The second wedge-shaped block firstly makes contact with the first wedge-shaped block, the second wedge-shaped block moves towards the side face, the movable rod moves towards one side, the rubber ball makes contact with the anti-skid plate, friction force is increased, and the stability of equipment in the production process can be improved.

Steel flare / signal pistol - Figure 1 - 1. as a breech-loading pistol (1) 1. with rooster (2) 2. with a tilting barrel (3) such as this one from Heckler & Koch with a bore of 30-40 mm, a length of 100 to 150 mm, the pivot / tilt axis (6) and the trigger guard (7). The tilting barrel - Figure 2 - Enables quick cartridge changes. 2. These contain a cartridge (4) based on a standard shotgun cartridge - Figure 3 - with a propellant charge (8) which is capable of pressing a [missing information] in front of the propellant charge polyester mesh or other rubber-like material (5) - Figure 4 - The net is hurled to a distance of 2 to 10 meters, the usual proximity between the individuals involved. Due to air resistance, the net expands to a width of approximately 1.5 meters, restricting the "attacker's" movement so severely that the user of the weapon can easily overpower them without endangering themselves and prevent any attack. The heat from the ignited propellant causes the polyester net to melt slightly, becoming sticky and adhering to the person hit. This prevents them from freeing themselves quickly enough to avoid being restrained by police officers or even launching an actual attack.

The invention relates to the technical field of precision printing, and discloses a composite screen printing plate based on a double-layer polyimide film, which comprises a precision printing layer, a printing layer, a printing layer and a printing layer, the supporting ink penetrating layer is composed of a second polyimide film and is compounded with the precise printing layer through a middle bonding layer; and the composite reinforced substrate layer is polymer screen cloth and is fixedly connected with the back surface of the supporting ink-permeable layer through a hot melt adhesive layer. According to the invention, the expensive stainless steel wire mesh or steel sheet is replaced by the cheap polyester mesh and the high-molecular adhesive; the material cost is reduced, the preparation process is simplified, and the manufacturing cost and the energy consumption are further reduced; the whole screen functional structure is composed of the polyimide film and the polymer glue layer, and the thermal expansion coefficients of all layers of materials are similar, so that the inherent thermal mismatch problem of a traditional metal-PI composite structure is solved; under the environment of temperature change, all the layers cooperatively deform, and pattern micro-deformation and alignment deviation caused by internal stress are effectively eliminated.

The utility model discloses an anti-impact life jacket which comprises a life jacket assembly, the life jacket assembly comprises a life jacket body, leg fixing belts are symmetrically and fixedly arranged on one side of the bottom of the life jacket, first connecting back buckles are arranged on the outer sides of the leg fixing belts, and floating materials are filled in the life jacket body. According to the life jacket, the zipper head arranged on the life jacket body is fixed in the elastic fabric interlayer so as to prevent the problem of falling off, and the polyester meshes are formed in the life jacket, so that water can be quickly discharged, and the weight of the life jacket body is reduced; a nylon belt, a waist belt, a connecting back buckle and a self-rescue assembly are arranged on the chest portion and the waist portion of the life jacket body respectively, the zipper can be prevented from cracking, the triple protection effect is achieved, and the arranged self-rescue device can ensure that the self-rescue device cannot be decomposed before being opened and can be rapidly separated after being opened. Therefore, the life jacket not only has the beneficial effect of impact resistance, but also has better safety performance.

The utility model discloses a manufacturing tool for a forming bushing, which belongs to the technical field of manufacturing of printing bushings and comprises a square auxiliary outer frame, a plane support arranged on the upper plane of the auxiliary outer frame and a plurality of jackscrews arranged on the inner side of the auxiliary outer frame. The plane support comprises a stainless steel wire net and a polyester net which surrounds the stainless steel wire net and is fixedly connected with the stainless steel wire net. And the polyester net is fixedly connected with the auxiliary outer frame. According to the utility model, the problem that a bushing finished product droops during processing is solved, and the processing precision of the bushing finished product is ensured.

The invention relates to a solar printing screen manufacturing process. The solar printing screen manufacturing process comprises the following steps that S1, a basic polyester screen is manufactured; s2, the stainless steel gauze is installed on a straightness machine table, a PET film is laid on the stainless steel gauze, and the stainless steel gauze is cut; s3, the PET film is heated, the stainless steel gauze adheres to the polyester screen printing plate, and the composite area adheres to the printing screen printing plate through a binding agent; s4, the drawing machine scans the stainless steel gauze and generates a drawing D1 in the same direction as the warp of the stainless steel gauze; s5, the drawing D1 is covered with the main grid drawing on the drawing running machine, and a drawing D2 is generated; s6, the printing screen plate is installed on a wire drawing machine for wire drawing treatment; s7, pasting a PI film on the printing screen, pressing the PI film, sealing the edge of the PI film by using a photosensitive resist, and exposing the photosensitive resist; s8, the drawing machine combines the stainless steel gauze warp and the main grid drawing to generate a drawing D3; and S9, a laser drawing is manufactured through the drawing D3, and a product is manufactured through a printing machine. The method has the effect of improving the quality of the solar printing screen.

The invention relates to a preparation method of a composite material, which comprises the following steps: providing a preform consisting of continuous carbon fibers, arranging the carbon fibers in the preform in a single layer, and aligning the fibers through a polyester net and an adhesive; zirconium boride powder is mixed with silicon carbide and scandium oxide, the mixed powder is mixed with the dispersion liquid, and slurry is prepared through ball milling homogenization; the prefabricated bodies are laid in a mold layer by layer, the space between every two layers is soaked with the slurry so that the fiber surface can be evenly covered, the prefabricated bodies are stacked at the 0-degree configuration, and at least 30 layers are stacked to prepare a plate with the thickness being 3-3.5 mm; in a vacuumizing state, curing the plate at 80 DEG C for 2 hours to form a stable composite structure; controlling the sintering time and temperature gradient promotes densification of the composite structure but prevents formation of an interface layer.

A baseball style cap having a crown portion, a brim, and a sweatband is provided. The sweatband has a first polyester mesh fabric layer and a moisture activated cooling mesh fabric layer. The first polyester mesh fabric layer has a plurality of holes extending therethrough each having a first opening size. The moisture activated cooling mesh fabric layer is constructed of substantially 55% nylon yarn and substantially 45% polyester yarn. The crown portion has a second polyester mesh fabric layer and a third polyester mesh fabric layer. The second polyester mesh fabric layer has a plurality of holes extending therethrough with the first opening size. The third polyester mesh fabric layer has a plurality of holes extending therein having a second opening size smaller than the first opening size.

This invention relates to a method for preparing a composite material, comprising: providing a preform composed of continuous carbon fibers, wherein the carbon fibers in the preform are arranged in a single layer and the fibers are aligned by a polyester mesh and an adhesive; mixing zirconium boride powder with silicon carbide and scandium oxide, mixing the mixed powder with a dispersion, and homogenizing by ball milling to prepare a slurry; laying the preform layer by layer in a mold, and impregnating each layer with the slurry to uniformly cover the fiber surface, the preforms being stacked at 0° configuration, and at least 30 layers are stacked to prepare a plate with a thickness of 3–3.5 mm; curing the plate at 80°C for 2 hours under vacuum to form a stable composite structure; and controlling the sintering time and temperature gradient to promote densification of the composite structure but prevent the formation of an interface layer.

The utility model discloses an anti-burst high-strength resin tile and a mounting structure, which relate to the technical field of resin tiles and comprise an ASA (Acrylonitrile Styrene Acrylate) film, a first PVC (Polyvinyl Chloride) layer, a first polyester grid, a second PVC layer, a first auxiliary machine co-extrusion layer, a main machine co-extrusion layer, a second auxiliary machine co-extrusion layer, a third PVC layer, a second polyester grid, a fourth PVC layer and an arch, a first PVC layer, a first polyester mesh, a second PVC layer, a first auxiliary machine co-extrusion layer, a main machine co-extrusion layer, a second auxiliary machine co-extrusion layer, a third PVC layer and a second polyester mesh are sequentially connected between the ASA film and the fourth PVC layer from top to bottom, and the high-strength resin tile is in an arch shape. Due to the combination of the layer structures, the anti-burst high-strength resin tile has excellent performance, can adapt to various environmental conditions, and provides a reliable roof covering material for buildings; the ASA film has excellent weather resistance, can resist erosion of ultraviolet rays, temperature change and chemical substances for a long time, and keeps bright color and surface integrity.

The utility model discloses an extrusion device for polyester net monofilament production, which comprises an extrusion pipe, the top of the extrusion pipe is fixedly connected with a fixing frame, the top of the fixing frame is fixedly connected with a raw material box, the bottom of the raw material box is fixedly connected with a blanking pipe, the bottom of the blanking pipe is fixedly connected with a cylinder, and the cylinder is fixedly connected with a screw rod. The bottom of the cylinder is fixedly connected with a connecting pipe; and the quantifying assembly comprises a quantifying disc. According to the raw material crushing device, the crushing rod and the upper packing auger are driven by the stirring motor to rotate, so that raw materials in the raw material box can be crushed by the crushing rod, meanwhile, when the upper packing auger rotates, the raw materials in the raw material box can smoothly enter the discharging pipe, and the anti-blocking effect can be achieved; after raw materials enter the quantitative disc from the discharging pipe, the quantitative groove is filled with the raw materials, meanwhile, the quantitative disc is driven by the rotating motor to rotate, and the raw materials in the quantitative groove can evenly and equivalently enter the extrusion pipe.

The invention discloses a multistage waterproof cable and a production process thereof, and belongs to the technical field of special cable manufacturing. The cable comprises a cable core, a gas guide network structure and a sheath system from inside to outside, the air guide network structure is composed of a micropore polyester net-shaped belt and a flexible air guide rope, and the terminal is provided with an air pressure balance unit. The sheath system comprises a bonding inner sheath, a physical foaming polyethylene middle sheath and an HDPE outer sheath. According to the cable, through collaborative design of the air guide network and the foaming water-blocking layer, free air exchange and effective liquid water blocking are realized, and the problem of water inflow caused by a breathing effect generated by temperature change of a traditional water-blocking cable is solved; the air guide network has super-hydrophobic characteristic and high air permeability, the sheath system forms a labyrinth type water blocking structure, and the terminal air pressure balance unit realizes selective air exchange; the cable has excellent waterproofness, air permeability, mechanical strength and long-term reliability, and is especially suitable for high-requirement occasions such as submarine cables and underground humid environments.

The utility model relates to the technical field of net part polyester net production, and discloses a net part polyester net cleaning device which comprises a workbench, the upper side of the workbench is fixedly connected with a supporting frame, the interior of the workbench is fixedly connected with a fixing frame, the interior of the fixing frame is fixedly connected with a filtering plate, and the filtering plate is fixedly connected with the supporting frame. A water tank is fixedly connected to the lower side of the interior of the workbench, a liquid injection pipe is fixedly connected to the left side of the water tank, a motor is fixedly connected to the front side of the water tank, a stirring shaft is fixedly connected to the output end of the motor, and fixing sleeves are fixedly connected to the two sides of the exterior of the stirring shaft; and stirring rods are fixedly connected to the two sides of the outer part of the fixing sleeve. According to the polyester net cleaning device, water and cleaning liquid are fully mixed, dust, greasy dirt, pigment or other attachments in a polyester net can be efficiently removed, the polyester net is fully and comprehensively cleaned, and the cleaning efficiency of the device is improved.

This invention discloses a frequency-bias-free composite screen for LTCC filters and its preparation method. The invention relates to the field of screen printing screen preparation technology. The composite screen includes a stainless steel wire mesh, a polyester mesh fabric, and an outer frame. The polyester mesh fabric is disposed around the stainless steel wire mesh, and the stainless steel wire mesh and polyester mesh fabric intersect. The outer frame is disposed around the polyester mesh fabric. Several sets of openings are provided on the polyester mesh fabric, each opening perpendicular to the corresponding edge of the outer frame. The purpose of this invention's opening design is to block non-equidistant screen tension gradient changes in the graphic during printing, eliminate the degree of deformation of the inner layer, and reduce the frequency bias of the LTCC filter to 0-10MHz, achieving a frequency-bias-free effect for the LTCC filter. This invention solves the problem of discrepancies between the printed line diameter and the designed line diameter in existing screens.

The invention relates to a preparation process of a solar printing nickel screen printing plate, and relates to the technical field of nickel screen printing plate manufacturing processes. The method comprises the following steps: S1, spreading a polyester screen on a false frame to form a primary screen printing plate; s2, a release film is placed in the middle of the preliminary screen printing plate, the release film is sequentially covered with a PE film and nickel screen gauze through hot melting operation, and at the moment, the nickel screen gauze is in a contracted and bent state; s3, cutting the polyester net in the middle along the edge of the release film, taking out the release film, and forming a step-shaped structure between the PE film and the nickel net gauze; s4, the false frame is subjected to frame jacking operation on the true frame, the nickel net gauze is stressed and expanded, stable straightness is obtained, and the polyester net is fixed to the true frame to form a screen printing plate; s5, the screen printing plate is pressed with a PM film after being cleaned; and S6, the periphery of the nickel screen gauze is evenly coated with photo-sensitive resist, the screen printing plate is washed after exposure, the photo-sensitive resist in an unexposed area is removed, and screen printing plate preparation is completed. And the straightness of the nickel screen gauze on the finished screen printing plate is higher, so that the quality of the screen printing plate is higher.

The utility model discloses a tea processing is with green removing device relates to tea processing technical field. Including frame, the frame is installed with belt conveyor, and one end of belt conveyor is erected with hopper, and the bottom of hopper is equipped with the discharge gate, and the outside of discharge gate is installed with motor, and the discharge gate is installed with the poking roller through bearing, and one end of poking roller is fixedly connected with the output shaft end of motor, and the hard plastic tooth harrow is erected on the belt conveyor. The tea processing is with green removing device, and the polyester mesh is suspended and is arranged on the conveyer belt of belt conveyor through the adhesive tape, and the hard plastic tooth harrow is erected on the conveyer belt of belt conveyor, and the hot -blast pipe is arranged close to the polyester mesh, when the tea is in the microwave green removing of machine cover, the setting of polyester mesh and hot -blast pipe makes the hot -blast to flow from the upper and lower two sides of mesh, and the hard plastic tooth harrow is used for loosening, and the material can be uniformly dried to the water vapor produced during the green removing of the quick discharge.

The invention relates to the field of solar cells, in particular to a screen printing plate for solar cell screen printing and a preparation method of the screen printing plate. The preparation method comprises the following steps of preparation of a composite screen layer of a polyester screen layer and a steel wire screen layer, polyimide film modification and photo-sensitive adhesive coating. The modified polyimide film is attached to the surface of the steel wire mesh layer and the surface of the polyester mesh layer which are sprayed with the adhesive, scraping and pressing are carried out, redundant photo-sensitive glue is removed, and drying is carried out; and performing exposure treatment, developing and drying to obtain the screen printing plate. The service life of the screen printing plate prepared by the method is greatly prolonged, and the printing effect is greatly improved.

This utility model discloses a false eyelash, comprising a polyester mesh, a first adhesive layer, and one or more hair units composed of a plurality of hair materials. The polyester mesh and the hair units are fixedly connected together by the first adhesive layer. The false eyelashes of this utility model, while maintaining the softness of the material when the polyester mesh and hair units are fixed together by the first adhesive layer, can better conform to the skin and will not have the ends of the polyester mesh exposed due to the curvature of the eye. Furthermore, its color is close to human skin tone, making it difficult to detect that it is an artificial eyelash.

The present invention relates to the field of dyeing and finishing technology, and specifically discloses a short-process dyeing process for polyester mesh fabric, which includes the following steps: S1. Degreasing and dyeing in one bath: Add dyeing acid, dispersing migration agent, disperse dye, and degreasing agent into the dyeing vat in the same bath, feed the fabric and water, then heat up to 70±2°C and keep it running at a constant temperature for 4-6 minutes, and then slowly heat up to 135±2°C and keep it running at a constant temperature for 30±5 minutes; S2. Acidic reduction cleaning: After dyeing, cool down to 82-85°C, add the acidic reducing agent thiourea dioxide and glacial acetic acid into the dyeing vat, and keep it running at a constant temperature for 20-30 minutes; S3. Hot washing, water washing, and discharging the fabric. The present invention processes degreasing and dyeing in one bath, innovatively selects the dispersing migration agent PS-10 and the emulsifying degreasing agent CW liq, and these two chemicals cooperate with each other to achieve the same bath, realizing short-range dyeing. The dyeing effect is good, the color uptake rate is high, there is no back adhesion, and the capillary effect is good. On the premise of ensuring the quality, the heating rate can be increased, and excellent color fastness performance can be obtained.

The utility model relates to the technical field of polyester net monofilament production equipment, in particular to a cooling device for polyester net monofilament production, which comprises a recycling box, two supports are fixedly connected onto the recycling box, a spraying component is arranged on one support, a fan and a casing are fixedly connected onto the other support, and the casing is fixedly connected onto the recycling box. The fan is connected with the shell through a conveying pipe, an air cavity is formed in the shell, a plurality of first air jet holes and a plurality of second air jet holes are formed in the lower inner wall of the air cavity, and each second air jet hole is located between every two adjacent first air jet holes; a plurality of first sealing pieces and a plurality of second sealing pieces are connected to the lower inner wall of the air cavity in a sliding mode. According to the cooling device, gas is uniformly sprayed to each part of the polyester net monofilament, so that the stripping effect on moisture of each part of the polyester net monofilament is better, and the cooling device is favorably used.

The invention belongs to the technical field of textile preparation, and particularly relates to a moisture-absorbing and quick-drying fabric and a preparation process thereof.The moisture-absorbing and quick-drying fabric comprises an outer layer and a middle layer, the outer layer is composed of slub cotton yarn, phase-change material microcapsules are attached to the fiber surface of the outer layer, and the middle layer is composed of hydrophilic modified polyester fiber, is of a net-shaped tissue structure and forms a continuous moisture guiding channel network; and the inner layer is made of superfine polyester yarns. According to the moisture-absorbing and quick-drying fabric and the preparation process, a three-layer integrated structure composed of the slub cotton yarn outer layer, the hydrophilic modified terylene net-shaped middle layer and the superfine terylene laser etching inner layer is arranged, and the moisture-absorbing and quick-drying fabric is formed by means of a three-dimensional moisture guiding channel formed by penetrating yarns and the gradient density design from sparse to dense; according to the fabric body, systematization and efficient collaboration of the moisture management function are achieved, meanwhile, the layers are locally combined through the low-melting-point fibers, and on the premise that the structural firmness and durability are guaranteed, independent pores and moisture guiding channels of all the functional layers are completely reserved.

A baseball style cap having a crown portion, a brim, and a sweatband is provided. The sweatband has a first polyester mesh fabric layer and a moisture activated cooling mesh fabric layer. The first polyester mesh fabric layer has a plurality of holes extending therethrough each having a first opening size. The moisture activated cooling mesh fabric layer is constructed of substantially 55% nylon yarn and substantially 45% polyester yarn. The crown portion has a second polyester mesh fabric layer and a third polyester mesh fabric layer. The second polyester mesh fabric layer has a plurality of holes extending therethrough with the first opening size. The third polyester mesh fabric layer has a plurality of holes extending therein having a second opening size smaller than the first opening size.