150results about How to "Good shape retention" patented technology

The invention provides a double-frequency common-caliber base station antenna array which comprises a high-frequency array fixed on a metal reflecting plate and a low-frequency antenna unit located in the middle of the high-frequency array. A low-frequency radiation unit in the low-frequency antenna unit is composed of two groups of mutually crossed low-frequency dipole arms, each low-frequency dipole arm is composed of two quadrilateral or hexagonal metal rings, and the positions of four notches formed in the metal rings are inwards connected with composite decoupling structures respectively; and the low-frequency radiation unit is arranged above the high-frequency array and partially coincides with the projection of the high-frequency array on the reflecting plate. The composite decoupling structure can induce high-frequency induction current on the low-frequency dipole arms to achieve reverse offset in a wide frequency band, interference of the low-frequency radiation unit on high-frequency electromagnetic waves is reduced, a good high-frequency directional diagram shape preserving effect is achieved, the low-frequency dipole arms are printed on the dielectric substrate, the structure is simple, and the antenna is convenient to manufacture. And meanwhile, the current path of the low-frequency radiation unit is prolonged by the composite decoupling structure, and miniaturization is realized.

The invention discloses an air bag auxiliary fuselage integral forming method which comprises the following steps: a) designing and manufacturing a mold according to the boundary dimension of a fuselage, unfolding the size and shape of a product by using software, and cutting a carbon fiber prepreg; b) paving prepreg on the machine body lower mold and the machine body upper mold according to the shape, and vacuumizing and pre-compacting; c) after paving, paving an auxiliary material, closing the mold, positioning through a positioning pin and fastening through a bolt; d) after the upper die and the lower die are closed, arranging overlapping edges, placing the air bags, connecting the air bags through vacuum bags, and vacuumizing and pre-compacting again; e) removing the vacuum bag, locking the mold, inflating the air bag and checking the air pressure, and adjusting the air pressure and curing after the air bag is correct; and f) demolding and finishing to obtain a product body. Through uniform expansion of the airframe air bag in the curing process, the carbon fiber prepreg is tightly attached to the shape of the mold, defects such as gaps and bubbles are effectively avoided, and therefore the forming precision of a product is remarkably improved.

The invention provides electroplating liquid, an electroplating method, an alloy bump and a preparation method of the alloy bump. The electroplating solution comprises the following components with mass concentration: 5-20 g / L of water-soluble cyanogen-containing gold salt, 1-15 g / L of water-soluble silver-containing salt, 0.5-5 g / L of cobalt citrate, 1-10 g / L of a refiner, 20-100 g / L of conductive salt, 10-90 g / L of a compound complexing agent and the balance of deionized water. The refining agent is selected from one or more of sodium lignin sulfonate, 5-nitroguaiacol sodium salt, sodium carboxymethyl cellulose and sodium alginate. Cobalt citrate and a specific substance are selected as refiners, so that the prepared gold-silver alloy bump is high in hardness and low in surface roughness; and through matching of the complexing agent, the antioxidant and the stabilizer, the oxidation resistance and the stability of the electroplating liquid are greatly improved, and the service life is prolonged.

The method for manufacturing the neodymium-iron-boron permanent magnet part in the complex shape comprises the steps of mixed material preparation, internal mixing and granulation, injection molding, degreasing, sintering, aftertreatment, final magnetizing and the like, a material pipe formed through injection molding is made of non-magnetic die steel, an annular magnetic field is additionally arranged at the front end of the material pipe, a magnetic field is additionally arranged on a die formed through injection molding, and therefore the neodymium-iron-boron permanent magnet part in the complex shape can be manufactured. According to the method, neodymium iron boron powder before injection molding can be magnetized, neodymium iron boron powder in the injection molding process can also be magnetized, meanwhile, only part of the macromolecule adhesive is removed in the degreasing process, and degreasing comprises high-temperature degreasing in which a green body is heated to 160-170 DEG C; in addition, the remaining high-molecular adhesive can be melted and wrap the neodymium iron boron powder under the action of capillary force, oxidation is avoided, the neodymium iron boron powder can be bound, displacement of the neodymium iron boron powder due to magnetic repulsive force is avoided, the neodymium iron boron permanent magnet part is good in shape retention, good in magnetic property and good in magnetic uniformity, and the requirement of the market for high-end products can be met.

The utility model discloses a hygroscopic warp-knitted fabric and clothes made of the hygroscopic warp-knitted fabric. The moisture-absorbing warp-knitted fabric comprises a fabric body, the fabric body is formed by knitting a guide bar GB1 and a guide bar GB2 in a warp knitting mode, yarn laying of the guide bar GB1 is moisture-absorbing yarn, and yarn laying of the guide bar GB2 is elastic yarn; the ratio X / Y of the width X formed by the open loops of the fabric body to the width Y formed by the three adjacent closed loops on one side and the horizontal distance between the open loops and the closed loops is 1 / 4-1 / 3, and the angle alpha formed by an inlet extension line and an outlet extension line of a first yarn forming loop in the fabric body ranges from 90 degrees to 160 degrees. The moisture-absorbing warp-knitted fabric and the clothes made of the moisture-absorbing warp-knitted fabric are stiff, wide and stylish and have good moisture-absorbing and sweat-releasing effects.

The invention belongs to the field of thin films, and particularly discloses an atomic layer deposition method and a thin film prepared through the atomic layer deposition method. According to the deposition method, the reaction cavity, the two input pipeline systems, the outlet valve and the vacuum pump in the atomic layer deposition system are used for controlling precursor pulse deposition and inert gas purging conditions in the atomic deposition process, and the film deposition state is improved; the efficiency of purging and removing substances and impurity residues such as a precursor and a reaction product thereof is improved, the problem that the quality of a deposited film is affected by the impurity residues in a reaction system or on the surface of a sample in the film deposition process is avoided, the uniformity and compactness of film deposition and the coverage rate and conformal rate of a film on the surface of a base material hole are improved, the defects of the film are reduced, and the yield is improved. And the method can be applied to a substrate with a high aspect ratio structure to deposit the film, so that the purpose of manufacturing a large-size complicated special-shaped structure device is achieved.

The invention relates to the technical field of textile, in particular to lyocell fiber and polyester fiber blended yarn and a preparation method and application thereof, and aims to solve the problems that the prepared jean fabric is easy to fluff and pilling, the aesthetic property and the service life are affected, the skin-friendly performance and the antibacterial performance need to be improved, and the service life of the jean fabric is affected due to poor wear resistance of the existing blended yarn. The requirements of people on the high-quality jean fabric cannot be met; according to the preparation method, the proportion of the modified polyester fibers to the lyocell fibers is reasonable, and the advantages of the modified polyester fibers and the lyocell fibers are fully exerted, so that the prepared blended yarn is excellent in hygroscopicity, breathability, shape retention, wear resistance, antistatic property, antibacterial property and the like, excellent in comprehensive performance and suitable for popularization and application. The method is suitable for producing fashionable and environment-friendly denim fabric, the quality and functionality of the denim fabric can be improved, the requirements of people for high-quality denim fabric are met, and the method has wide market application prospects.

The invention relates to a preparation method of a low-impedance adhesion ultrathin cellulose membrane. The preparation method comprises the following steps: S1, dissolving cellulose; s2, preparing a metal cellulose film; s3, regenerating with a regenerant; after metal ions released by a metal material and cellulose dissolved in the cellulose are bonded and preliminarily formed, the ultrathin cellulose membrane with good shape retention and low impedance is obtained through regeneration in a regeneration liquid agent. The invention relates to a low-impedance adhesion ultrathin cellulose membrane, which has a thin and flexible structure, so that the cellulose membrane can be in better contact with biological tissues, and the risk of tissue damage and rejection reaction is reduced; metal complexing enables epidermal electrons to have excellent stability; the ultrathin cellulose membrane has the advantages of high sensitivity, good signal-to-noise ratio, low impedance and good fit with the skin, and has a great application prospect in the fields of electronic skin, medical diagnosis and the like.

According to the special-shaped FPC and the manufacturing method thereof, the pre-formed special-shaped flexible base material layer is arranged, the shape of the pre-formed special-shaped flexible base material layer is directly matched with the special-shaped surface of a target installation space, and a circuit layer, an insulation covering layer and a special-shaped supporting layer are all attached to the special-shaped surface of the special-shaped flexible base material layer, so that the FPC does not need to be forcibly bent, twisted or stretched subsequently, and the production efficiency is improved. The problems of circuit breakage and delamination caused by stress concentration are fundamentally avoided, the structural stability of the FPC is improved, and the service life of the FPC is prolonged. The flexible circuit board is used for solving the technical problem that in order to achieve special-shaped layout, the plane of an existing flexible circuit board generally needs to be forcibly bent, twisted or stretched.

The invention provides a preparation method of functional polyacrylic acid alkyl ester latex and ASA (Acrylonitrile Styrene Acrylate) resin. By controlling the difference of the double-layer crosslinking degree of the functional polyacrylic acid alkyl ester latex, the prepared rubber has excellent shape retention; furthermore, the ASA resin prepared from the functional polyacrylic acid alkyl ester latex prepared by the preparation method disclosed by the invention has excellent impact resistance and excellent impact resistance retention after repeated processing.

The invention belongs to the field of air electrode materials, and discloses a self-supporting multifunctional catalytic fabric electrode and preparation and application thereof. According to the invention, a metal organic framework is grown in situ on an acid-treated and modified graphite felt substrate through a simple room-temperature self-assembly method, so that the semi-coated nano-particle metal with uniform adsorption and multiple active sites is obtained. Dicyandiamide (DCD) is used as a carbon source, and an M-Nx-C type carbon nanotube (NCNTs) electrocatalyst is grown in situ on a three-dimensional flexible metal organic framework conductive substrate through a chemical vapor deposition (CVD) method. The synthesized GF / Co-NCNTs show excellent three-function catalytic activity and excellent stability, and ORR, OER, HER and stability tests of the GF / Co-NCNTs are not inferior to those of commercial Pt / C and RuO2. The method can be applied to the aspects of zinc-air batteries, flexible wearable equipment, pressure sensors and self-driven water electrolysis hydrogen production.

The invention provides an MEMS (Micro Electro Mechanical System) thermal flow sensor. 100 gt; the inclined edge corrosion holes extending in the crystal orientation are combined with the vertical corrosion holes. 100 gt; when the beveled edge corrosion hole in the crystal direction is corroded by an alkaline solution, the corrosion rate of the crystal face of the substrate (100) is far greater than that of the crystal face of the substrate (111), so that the beveled edge corrosion hole can completely corrode downwards along the thickness direction of the substrate to remove the substrate, thereby improving a hill-like structure at the center of the heat-insulating film, reducing heat loss towards the direction of the substrate, and improving the heat-insulating performance of the heat-insulating film. The vertical corrosion holes can also prevent heat from being transferred to the substrate in the horizontal direction, and heat loss is reduced; meanwhile, the bevel edge corrosion holes can hinder transverse temperature conduction, the multiple sub-film parts obtained through division can be located in different temperature fields, and due to the fact that the distances between the hot end of the thermopile and the heating element are different, the sensitivity to different measuring range flow is different. Therefore, different measuring range test requirements can be realized through different distances between the hot ends of the thermopiles at different sub-film parts and the heating element.

The invention provides a preparation method of an amorphous oxide coated and modified lithium ion positive electrode material and a lithium ion battery. According to the preparation method disclosed by the invention, the silicate high-entropy amorphous material is selected as a modification raw material, the advantage that the bulk phase Young modulus of the amorphous material is low by several orders of magnitude is utilized, and the amorphous material is uniformly coated on the surface of the positive electrode material in a simple mechanical mixing and heat treatment matching manner, so that the modification of the positive electrode material is realized; the positive electrode material can stably work under high voltage; and the preparation method can realize uniform coating of the surface without using a solution environment, so that the synthesis cost of the modified lithium cobalt oxide is effectively reduced.

This invention discloses a coatable, moldable dual-functional coating material for heat protection and stealth, and its preparation method. The coating material is formed from a SiC-based composite ceramic aerogel slurry, a perovskite / MAX phase composite ceramic absorber, and a high-temperature resistant binder. The composite ceramic aerogel slurry is composed of SiC micro / nano-scale aerogel powder, SiC nanowires, and a high-temperature resistant binder; the perovskite ceramic absorber is lanthanum strontium manganese oxide (La). 1‑x Sr x MnO3), lanthanum strontium iron oxide (La) 1‑ x Sr x FeO3), lanthanum strontium cobalt oxide (La) 1‑x Sr x The MAX phase ceramic absorber is Ti3SiC2, and it contains substances such as CoO3. The technology of this invention enables the rapid application of coating materials to the surface of equipment via brushing, enhancing high-temperature radar absorption stealth and thermal protection capabilities, and facilitating the preparation and efficient repair of high-temperature stealth coatings.

The invention relates to a bio-based master batch for a hot melt adhesive and a preparation method thereof.The preparation method comprises the following steps that S1, coffee grounds, inorganic ore particles accounting for 1.00-5.00% of the total weight of the coffee grounds and a surface modifier accounting for 1.00-6.00% of the total weight of the coffee grounds and inorganic ore are added into a ball mill to be subjected to a ball-milling reaction, after the reaction is finished, aftertreatment is conducted, and a mixture is obtained; modified coffee grounds and inorganic ore mixed particles are obtained; and S2, adding 100 parts of plastic particles, 3.00 to 5.00 parts of a compatilizer, 2.00 to 4.00 parts of an auxiliary agent and 20.00 to 50.00 parts of the modified coffee residue and inorganic ore mixed particles prepared in the step S1 into a double-screw extruder, and carrying out melt extrusion granulation, so as to obtain the bio-based master batch for the hot melt adhesive. The prepared bio-based master batch for the hot melt adhesive has the advantages of being antibacterial, deodorant, good in viscosity, resistant to low-temperature bending and good in shape retention rate.

Provided is an electromagnetic wave shielding material having excellent shape retention. The electromagnetic wave shielding material includes a laminate having a non-magnetic resin layer and a non-magnetic metal layer and / or a ferromagnetic layer, and having a value of anisotropy (Rc) at the time of rupture represented by formula (1). # imgabs0 # Rc: anisotropy at rupture w: width (mm) of a fractured portion after a tensile test of the laminate; w0: width (mm) of the laminate before the tensile test; t: thickness ([mu] m) of a fractured portion after the tensile test of the laminate; t0: thickness ([mu] m) of the laminate before the tensile test.

The invention discloses a preparation method of an industrial hemp warp-knitted weft insertion fabric, the industrial hemp warp-knitted weft insertion fabric comprises a warp-knitted fabric woven by knitting yarns, and weft insertion yarns which do not participate in looping are arranged between loops and extension lines of the warp-knitted fabric along the weft direction; the preparation method comprises the following steps: raw material selection: weaving yarns are polyester filaments or nylon filaments, and weft insertion yarns are industrial hemp fiber blended yarns; warping is conducted; knitting: knitting by adopting biaxial warp knitting equipment; dyeing, namely adding auxiliaries such as sodium lignosulphonate and hyperbranched molecules during dyeing of the disperse dye; a dispersing agent SS and a dyeing precipitation preventing agent are added before dyeing of the reactive dye. The industrial hemp blended yarns which do not participate in looping are arranged between the loops and the extension yarns in the warp-knitted fabric, so that the conformal performance and the strength of the warp-knitted fabric in the weft direction can be improved, and the warp-knitted fabric is prevented from deforming in the weft direction. A one-bath two-step method is adopted, and proper auxiliaries and process setting are added, so that the warp-knitted weft insertion fabric has good color fastness.

The invention relates to an anti-wrinkle flax blended woven fabric and a production method. High-quality flax blended yarn is spun by optimizing the mixing ratio of raw materials and the spinning process. The weave structure adopts a double-layer structure and is arranged at intervals in the Z twist direction and the S twist direction, so that the interlayer connection stability is enhanced, and the fabric is endowed with good elastic restoring force and crease resistance; during weaving, efficient production of the fabric is ensured by adding specially-made wax blocks and optimizing a looming process. The developed fabric has the advantages of moisture absorption, air permeability, light and full hand feeling, smooth and stiff appearance and good shape retention, overcomes the problem that pure linen fabric is easy to wrinkle, and expands the application scene.

The invention discloses a stainless steel roller efficient accurate grinding ceramic grinding wheel and a preparation method thereof, and the stainless steel roller efficient accurate grinding ceramic grinding wheel comprises the following components in parts by weight: 100 parts of grinding material; 10-25 parts of a ceramic bonding agent; 5-20 parts of a pore forming agent; 3-6 parts of a resin binder; wherein the grinding material is a large-particle silicon carbide micro powder accumulation body prepared by adopting a ceramic bonding agent, has the characteristics of a micro grinding tool, and has three elements of the grinding material, the bonding agent and air holes, and the resin bonding agent is a mixture of low-viscosity phenolic resin liquid and alcohol in a ratio of 1: 1 or 1: 2. The grinding material provided by the invention has structural uniformity, micro-cutting-edge cutting performance, micro-crushing performance of micro-grains falling off along grain boundaries and good self-sharpening performance, a ceramic grinding wheel prepared from the grinding material has the advantages of more uniform organization structure, high strength, good shape retentivity and the like, and the grinding efficiency is greatly improved under the condition that the grinding precision is ensured. And the grinding efficiency is high, the single feed amount is large, the finishing interval is short, and the service life is long.

The present invention provides a combined insole and a preparation method thereof, comprising an insole body, the insole body comprising a forefoot portion, an arch portion and a rear foot portion, a support pad being arranged at the arch portion, a TPU film being arranged at the bottom end of the insole body, the TPU film wrapping the bottom end surface of the insole body, the TPU film being below the support pad, the thickness of the TPU film being 0.01-0.5 mm, and the combined insole being processed by integral injection molding using a molding die. The present invention provides a combined insole and a preparation method thereof, in which a support pad matching the shape of the human arch is arranged at the arch position of the insole in a combined manner, the insole is more comfortable to wear, has a good shape-keeping effect, and can support and protect the human arch. In addition, a TPU film layer is arranged at the bottom of the insole to increase the friction coefficient of the insole, improve the anti-skid, wear-resistant and anti-deformation properties of the insole, and increase the service life of the insole. The insole is integrally injected and molded using a molding die to ensure the integrity of the insole.

The utility model discloses a soft sofa fabric which comprises a soft fabric layer, a tear-resistant fabric layer, a flame-retardant fabric layer and a wear-resistant non-woven fabric layer which are compounded with one another, a softening finishing agent is attached to the fiber surfaces of the tear-resistant fabric layer and the antibacterial fabric layer; the soft fabric layer is formed by weaving superfine denier polyester filaments according to weft plain stitch, the tear-resistant fabric is weft-knitted plain binding biaxial fabric, and the weft-knitted plain binding biaxial fabric comprises first yarn, second yarn, lining warp and lining weft; the first yarns and the second yarns are arranged according to the sequence of 1: 1; the first yarns are natural bamboo fiber yarns, and the second yarns are antibacterial anti-mite polyester filament yarns; and the lining warps and the lining wefts are chinlon filaments. The soft fabric layer formed by weaving the superfine denier polyester filaments is used on the outermost layer, so that the softness of the fabric can be improved. In addition, the used weft-knitted plain binding biaxial fabric is good in shape retention and tear resistance due to the fact that the lining warp and the lining weft are used.

The utility model discloses a stable supporting bra. The stable supporting bra comprises a bra main body, two groups of shaping components and shaping strips, the bra main body comprises two cups, the two groups of shaping assemblies are respectively connected to the two cups, each shaping assembly comprises a first strip body and a second strip body, the first strip bodies and the second strip bodies are attached and fixed to the inner side surfaces of the cups, the first strip bodies and the second strip bodies are intersected, and the intersection points are located in the middles of the cups; the two ends of the first strip body and the two ends of the second strip body respectively extend to the edges of the corresponding cups, and the shaping strip is arranged on the bra main body and extends along the lower edges of the two cups. According to the stable supporting bra, the two shaping bodies, namely the first strip body and the second strip body, are additionally arranged on the cups, the first strip body and the second strip body extend from the middle parts to different directions, supports in two directions are outwards added in the middle parts of the cups, and the shaping strips are arranged on the edges of the cups, so that partitioned multi-block and multi-direction support is realized; and the shape preserving property and the bearing capacity of the bra are greatly improved.

According to a method for producing a three-dimensional shaped food, the method comprising a step of turning a curdlan dispersion liquid into a heat irreversible gel, and a step of ejecting and laminating the gel, it is possible to obtain a three-dimensional shaped food that may withstand precise shaping with good handling properties at the time of ejection but with high shape retention during and after lamination and also has heat resistance after forming.

This application provides a high-voltage electrochemical composite hydrogel for wound skin repair and its preparation method. The high-voltage electrochemical composite hydrogel is prepared by using hydroxyethyl cellulose and acrylamide monomers as raw materials to form an interpenetrating network structure. Polyvinylidene fluoride (PVDF) and ZnO nanowires are used as piezoelectric materials, and are formed by interweaving PVDF and ZnO nanowires within the hydrogel. This high-voltage electrochemical composite hydrogel significantly improves the crystallization orientation and polarization efficiency of PVDF through mechanical stretching and polarization, resulting in an order-of-magnitude improvement in the piezoelectric properties of the composite hydrogel. Simultaneously, it retains the excellent flexibility and biocompatibility of the hydrogel, showing broad application prospects in flexible sensors, self-powered devices, and human-computer interfaces.

The utility model relates to the technical field of fabrics, in particular to an antistatic polyester fiber fabric, which comprises a wear-resistant waterproof layer, and a flame-retardant thermal insulation layer, an antistatic layer, an antibacterial layer and a waterproof breathable layer which are sequentially arranged from top to bottom, the flame-retardant heat preservation layer is connected to the lower portion of the wear-resistant waterproof layer, the antistatic layer is connected to the lower portion of the flame-retardant heat preservation layer, the antibacterial layer is connected to the lower portion of the antistatic layer, and the waterproof breathable layer is connected to the lower portion of the antibacterial layer. The strength and the wear resistance of the fabric can be enhanced through the resin fibers and the ultra-high molecular weight polyethylene fibers, the abrasion of the fabric is reduced, the waterproof breathable film is used for blocking moisture and dust, water molecules can easily pass through the micropores in the film, the breathability is achieved, and the air pressure balance function is achieved; meanwhile, water can be prevented from permeating, the waterproof performance of the cloth can be improved, and the air permeability of the cloth can be kept.

The invention discloses a hot-melt self-adhesive crochet yarn and a preparation method thereof, and belongs to the technical field of textiles. High-strength yarns are used as core warp yarns, and hot melting yarns are used as chaining warp yarns and weft insertion yarns; the core warp does not perform looping motion; the chaining warp yarns are located on two sides of the core warp yarns and looped to form chaining tissues, and crochet yarns are obtained through weft insertion knitting; and then carrying out hot melting treatment to obtain the hot-melting self-adhesive crochet yarn. The hot-melt self-adhesive crochet yarn prepared by the invention is good in shape retentivity and structural stability, simple in preparation process, low in cost, free of influence on hand feeling and the like.

(Problem) To provide a liquid composition which is excellent in solubility of a thickening agent and dispersion stability of metal fine particles and is excellent in shape retention at the time of wiring formation. (Solution) A liquid composition according to the present invention is characterized by comprising: metal fine particles, a dispersion medium, and cellulose having an alkoxyhydroxypropyl group.

The invention relates to the technical field of ceramic additive manufacturing and high-temperature sintering tools, in particular to a design method of a sintering clamp for photocuring a large-size special-shaped ceramic component. Aiming at the problems of free opening edge curling, thin-wall collapse, cracks, overall warping and the like which are easy to occur during sintering of a photocuring ceramic green body, the method comprises the following steps: firstly, acquiring three-dimensional geometric information of a component and partitioning, and identifying an instability mode and a sensitive area; and then a boundary strategy of shape limitation without shrinkage limitation, controlled sliding, partition supporting and intersection area receding is constructed, structural design and material selection of the supporting ring, the inner supporting core, the burning bearing base, the low-friction isolation layer and the positioning groove are completed, and assembly and use specifications are formed. The sintering bearing clamp obtained by the method can inhibit out-of-plane instability while allowing the component to shrink, reduce shrinkage retardation stress, and improve the sintering formability stability, size consistency and finished product yield of the component. The ice cream barrel-shaped silicon nitride ceramic piece is taken as an embodiment, so that the sintering defect risk can be obviously reduced, and the engineering popularization value is good.

The invention discloses a common-aperture dual-frequency antenna with a directional diagram conformal characteristic, and belongs to the technical field of microwave antennas. According to the antenna array disclosed by the invention, the high-frequency radiation pattern can still keep stable performance under the condition that the high-frequency antenna and the low-frequency antenna are in the same aperture. The high-frequency antenna unit and the low-frequency antenna unit both adopt annular dipole radiators, and a feed part adopts a balance balun; the radiation arm of the low-frequency unit does not need to be modified, and coupling can be eliminated only through induction of a simple patch, so that the design process and the design complexity of the base station common-caliber antenna are greatly simplified. The antenna array has a wide prospect in design and application of base station antennas.

This application relates to the field of warp-knitted mesh technology, and in particular to a multi-comb jacquard 3D jacquard mesh fabric and its manufacturing method. The mesh fabric includes a face layer, a back layer, and a connecting layer; the face layer is woven with a first warp-knitted basic structure, the back layer is woven with a second warp-knitted basic structure, and the connecting layer connects the face layer and the back layer; wherein the face layer and / or the back layer are woven with a 3D jacquard pattern, the 3D jacquard pattern including a jacquard outline and jacquard protrusions, the jacquard outline being woven by jacquard combs through the first jacquard basic structure, and the jacquard protrusions being woven by jacquard combs through the second jacquard basic structure. This application utilizes two different jacquard combs with yarn padding and running a jacquard basic structure, combined with colored yarns and functional yarns, to weave a 3D jacquard pattern, greatly enhancing the 3D effect of the mesh fabric, making the mesh fabric more delicate and thicker, and with strong structural stability.