312 results about "Binding force" patented technology

The embodiment of the invention provides a glass-based structural member as well as a preparation method and application thereof, and the preparation method comprises the following steps: carrying out at least one pre-plating cleaning selected from alkali cleaning, acid pickling and plasma treatment on a glass substrate, so that the surface water drop angle of the glass substrate is in a range of 10-30 degrees; forming a dielectric layer comprising a silicon dioxide layer on the surface of one side of the glass substrate cleaned before plating; forming an anti-fingerprint layer on the silicon dioxide layer; si-CH2 bonds are formed between the silicon dioxide layer and the anti-fingerprint layer. After the glass base material is cleaned before plating, the binding force between the SiO2 layer formed on the glass base material and the glass base material and the binding force between the anti-fingerprint layer and the SiO2 layer are both high, so that the thickness of the SiO2 layer and the anti-fingerprint layer can be large, the structure of the whole coating is stable, and the glass-based structural part can have good abrasion resistance, good scratch resistance and a lasting anti-fingerprint effect; and the application requirements in the fields of electronic equipment and the like can be well met.

The invention provides a buried resistor circuit board and a preparation method thereof. According to the resistance element, one resistance material is arranged on the dielectric layer to form the first resistance layer, and then the other resistance material is arranged on the first resistance layer to form the second resistance layer, so that the binding force of the resistance layers and the dielectric layer can be enhanced, and the surface flatness of the resistance element can be improved. The resistive layer of the resistive element is protected by using the protective film, so that the shape and the length of the resistive layer are prevented from being influenced by subsequent processes. According to the preparation method, the whole process is a dry process, a differential etching process is omitted, an alkaline etching solution does not need to be used, and the preparation method is environmentally friendly.

The invention discloses a wear-resistant coating and application thereof on a leather surface, and belongs to the technical field of leather finishing. The coating comprises a functionalized polyurethane-acrylate composite emulsion, a photoinitiator, an auxiliary agent and deionized water. Wherein the composite emulsion is prepared from hyperbranched polyester polyol, a dynamic bond chain extender and the like through prepolymerization, fluorine-containing grafting and in-situ sol-gel reaction, a hyperbranched skeleton provides mechanical support, double dynamic bonds endow a self-repairing function, in-situ nano-compounding enhances wear resistance, a diurea hydrogen bond enhances binding force, and a fluorine-containing side chain endows a coating with hydrophobic and stain-resistant performance; and preparing the coating by matching with a gradient curing process. The coating prepared by the invention has high wear resistance, efficient self-repairing property, firm adhesive force, excellent stain resistance and leather adaptation flexibility, and meets the actual requirements of middle and high-end leather finishing.

The invention relates to the technical field of secondary batteries, in particular to a negative current collector, a preparation method thereof, a negative plate and a battery. The preparation method of the negative electrode current collector comprises the following steps: preparing a metal transition layer on the surface of a polymer base film; preparing a seed copper layer on the surface of the metal transition layer, and performing plasma bombardment treatment on the seed copper layer; and forming a copper layer on the surface of the seed copper layer to prepare the negative electrode current collector. According to the preparation method provided by the invention, the compactness of the metal transition layer and the seed copper layer can be effectively improved, so that the binding force of the copper layer and the polymer base film is improved.

The invention provides a porous composite current collector and a preparation method thereof, the porous composite current collector comprises a base film layer and a conductive layer arranged on the surface of the base film layer, the conductive layer comprises a conductive material, the base film layer comprises a high-molecular polymer, the base film layer is provided with a plurality of through holes, and the through holes are communicated with the conductive material. And a blocking part for preventing magnetron sputtering pollution is arranged in the through hole. By effectively optimizing the composition and the preparation process of the porous composite current collector, the sheet resistance of the porous composite current collector is reduced, and the situation that a conductive material is hit onto a sputtering back roller through vertical holes to cause back roller pollution is avoided, so that the porous composite current collector has high conductivity and high compression strength, and the binding force of a conductive layer and a base film layer is improved.

The invention relates to the technical field of guiding devices, in particular to a nasal jejunum nutrition tube imbedding guiding device which is used for guiding the process of imbedding a flexible nasal jejunum tube into a human body. The image acquisition device acquires a picture in the direction of the advancing direction of the insertion end of the nasal jejunum tube; the bag body is arranged in a manner of extending close to the insertion end of the nasal jejunum tube; during use, the bag body does not generate binding force on the nasal jejunum tube in a low-expansion state, the shape of the nasal jejunum tube is not limited by the bag body, when the bag body is in a high-expansion state, the bag body generates binding force on the nasal jejunum tube to enable the nasal jejunum tube to be bent, and the image acquisition device comprises a camera arranged in the insertion end of the nasal jejunum tube. The insertion end of the nasointestinal tube is provided with a closing part for preventing the camera from falling off, and the problem that the throat and the pylorus cannot pass through the nasointestinal tube quickly and smoothly in the existing nasointestinal tube indwelling process can be solved by improving the existing endoscope guiding technology.

The invention particularly relates to a high-conductivity high-binding-force PP composite copper film and a preparation method thereof.According to the high-conductivity high-binding-force PP composite copper film and the preparation method thereof, a direct-current magnetron sputtering technology is adopted, a metallized Cu film is deposited on a PP base material, the binding force and the conductivity of the Cu film are greatly improved by finely regulating and controlling the deposition technology, the resistivity of the Cu film is as low as 9.72 * 10 <-8 > omega.m, and the conductivity of the Cu film is greatly improved. The binding force grade is grade 1 (the substrate temperature is-15 DEG C; the deposition air pressure is 0.24 Pa; the sputtering power is 1.5 kW; and the thickness of the Cu film is about 80 nm). The method is simple in preparation process, high in deposition efficiency and convenient for industrial popularization and application.

The invention discloses a preparation method of a molten salt corrosion resistant coating on the surface of a TiAl alloy, relates to the technical field of surface treatment, and aims to solve the technical problems of low binding force between an existing TiAl alloy matrix and a coating interface and poor corrosion resistance of the coating. The preparation method of the molten salt corrosion resistant coating on the surface of the TiAl alloy comprises the steps that a Zr-Y alloy is infiltrated on the surface of the TiAl alloy through a double glow plasma method, and a Zr-Y infiltrated layer is formed on the surface of the TiAl alloy; the TiAl alloy is subjected to heat preservation for 1-5 hours under the condition that the temperature ranges from 850 DEG C to 900 DEG C; a Zr-Cr-Y alloy is infiltrated on the surface of the TiAl alloy, and a Zr-Y / Zr-Cr-Y infiltrated layer is formed on the surface of the TiAl alloy; the TiAl alloy is subjected to heat preservation for 2-3 hours under the condition that the temperature ranges from 900 DEG C to 950 DEG C, and is oxidized under the condition that the temperature ranges from 860 DEG C to 920 DEG C;

The invention discloses a high-color-fastness washable polyethylene fabric and a preparation process thereof in the field of functional polymer materials. The high-color-fastness washable polyethylene fabric is prepared from the following raw materials: polyethylene resin, maleic anhydride-acrylic acid copolymer grafted polyethylene, dopamine-silane composite modified polyethylene, magnesium stearate and an antioxidant. Wherein the maleic anhydride-acrylic acid copolymer grafted polyethylene is prepared by copolymerizing maleic anhydride and acrylic acid and then blending and granulating with polyethylene, and carboxyl and acrylate groups are introduced to enhance the binding force with dye; the dopamine-silane composite modified polyethylene is prepared through polyethylene surface hydroxylation, dopamine self-polymerization modification and silane grafting reaction, and the acting force and hydrophobicity between fibers are doubly improved through a catechol group and an epoxy group. According to the prepared fabric, the color fastness and the washing resistance are remarkably improved, meanwhile, the original characteristics of light weight and chemical corrosion resistance of polyethylene are kept, and the application scene is expanded.

The utility model belongs to the technical field of tensile test piece devices for quantitatively detecting coating binding force, and discloses a tensile test piece device for quantitatively detecting coating binding force, which comprises a support seat I and a support seat II, a pneumatic chuck I is mounted in the middle of the upper end surface of the support seat I, and a pair of support rods is mounted on two sides of the upper end surface of the support seat I; first sliding grooves are formed in the opposite sides of the supporting rods, telescopic sleeves are slidably connected into the first sliding grooves, telescopic grooves are formed in one sides of the telescopic sleeves, telescopic rods are movably connected into the telescopic grooves, protective covers are installed at one ends of the telescopic rods, second sliding grooves are formed in one sides of the first sliding grooves, and locking screws are installed on one sides of the second sliding grooves. According to the device, the welding position of a test piece can be wrapped through a pair of protective covers, the situation that in the stretching process, the welding position is suddenly broken, chippings splash and injure testers accidentally is avoided, meanwhile, the chippings can be conveniently and rapidly cleaned, and the practicability of the product is improved.

The application solves the problem of insufficient binding force between the female threaded cylinder and the inserted material in the thermal insulation formwork, relates to the technical field of external wall thermal insulation structure, and particularly relates to a composite thermal insulation formwork for building external wall, which comprises a base wall, a thermal insulation formwork module is arranged on one side of the base wall, a reserved positioning assembly is installed on the thermal insulation formwork module, fixed steel nails extending into the base wall are in threaded connection with the reserved positioning assembly, the reserved positioning assembly comprises a positioning cylinder inserted into the thermal insulation formwork module when the thermal insulation formwork module is made, a plugging structure for closing the tail end opening when the positioning cylinder is directly inserted into the thermal insulation formwork module in which the material has not solidified is connected to the tail end of the positioning cylinder. The application effectively realizes the integration of the building thermal insulation and the structure while meeting the building external wall thermal insulation requirement, and the female threaded cylinder forms mechanical interlocking in the thermal insulation formwork, thereby effectively preventing the female threaded cylinder from rotating or loosening under stress.

The invention discloses a perovskite solar cell and a preparation method thereof, and relates to the technical field of solar cells. A perovskite solar cell conductive substrate; the hole transport layer is arranged on one side of the conductive substrate; the hole selection layer is arranged on one side, far away from the conductive substrate, of the hole transmission layer; the perovskite absorption layer is arranged on one side, far away from the conductive substrate, of the hole selection layer; wherein the hole transport layer comprises an inorganic hole transport layer and an interface modification layer, the interface modification layer is arranged between the inorganic hole transport layer and the hole selection layer, and the interface modification layer has a hydroxyl nano capillary structure, so that the solution wettability of the surface of the hole transport layer is improved; the binding force between the hydrophilic group in the material of the hole selection layer and the hole transmission layer is improved, and the interface recombination and voltage loss between the hole transmission layer and the hole selection layer can be reduced.

The utility model relates to the technical field of end plates, in particular to a high-binding-force plastic-coated end plate for a fuel cell, which comprises a metal cover plate and a PPS (polyphenylene sulfite) resin end plate, the surface of the metal cover plate is processed into a micro-nano structure by laser, the PPS resin end plate is coated with a plastic, and the metal cover plate and the PPS resin end plate form the end plate of the PPS plastic-coated metal cover plate; an embedded groove is formed in the middle of the PPS resin end plate, cavity opening structures are formed in the two sides of the PPS resin end plate, and an open groove is formed in one side of the embedded groove. According to the utility model, the physical binding force of the PPS resin end plate and the metal cover plate can be increased, the problem of insufficient binding force of metal and nonmetal interfaces is solved, and the air tightness of a fuel cell system is ensured.

The utility model discloses metal base material surface coating binding force detection equipment which comprises a detection table, a detection assembly and an auxiliary assembly are arranged at the upper end of the detection table, a controller is arranged on one side of the detection table, and through cooperation of the detection assembly and the auxiliary assembly, multi-angle and multi-mode detection of the metal base material surface coating binding force can be achieved. The defects that in the prior art, a detection method is single, and the binding force cannot be comprehensively and accurately evaluated are overcome, specifically, a first electric push rod, a first motor, an adjusting gear, an adjusting rack, a micro motor and other parts in the detection assembly can accurately adjust the detection force and the detection position, and the detection accuracy is improved. Therefore, the pressing detection block can detect the coating with proper force and angle, so that the bonding strength between the coating and the metal base material can be measured more accurately.

The invention provides a binder for binder jet 3D printing. The binder comprises the following components in parts by weight: 10-15 parts of resin, 75-80 parts of a solvent, 3-5 parts of a dispersing agent and 2-3 parts of a wetting agent, the solvent is ethylene glycol butyl ether. According to the binder for binder jet 3D printing and the preparation method of the binder, butyl cellosolve is adopted as a solvent, butyl cellosolve is an organic solvent with a high boiling point and low volatility and has good metal powder wettability and resin dissolving capacity, ether bonds in the molecular structure of butyl cellosolve and hydroxyl on the metal surface can form hydrogen bonds, and therefore the metal powder can be sprayed on the metal surface; the binding force of the binder and the metal powder is enhanced, the influence of environment humidity on binder migration can be avoided due to low hygroscopicity, and therefore the caking problem in the printing process is solved.

The composite powder metallurgy net near forming process device comprises a base, the upper end of the base is fixedly connected with a machine body, the upper end of the machine body is fixedly connected with a material tank, the inner bottom of the machine body is fixedly connected with a mold main body, and the upper end of the mold main body is provided with a mold groove; a transverse plate is jointly and fixedly connected between the side wall of the mold body and the inner wall of the machine body, and the transverse plate and the upper end of the mold body are horizontal. The device is reasonable in structure, the electric push rod drives the discharging cover to slide along the transverse plate, powder diffusion is limited in cooperation with the baffles on the two sides, uniform-speed and uniform spreading of powder in a die cavity is achieved, local accumulation is avoided, the consistency of the density of workpieces is ensured, in the material pushing process, impact blocks make repeated contact with protruding blocks of the side baffles, periodic lateral impact is generated under the action of springs, and the powder is evenly sprayed out. And in cooperation with mold cavity constraint of the mold groove, the binding force between powder particles is improved, gaps between materials are reduced, and workpiece defects are reduced.

The invention discloses a high-adhesion composite aluminum film and a preparation method thereof, and belongs to the technical field of composite thin films, and the high-adhesion composite aluminum film comprises a substrate layer, a barium titanate coating formed on at least one surface layer of the substrate layer, and a metal aluminum layer formed on the surface of the barium titanate coating. By adopting the barium titanate coating, the surface energy is higher, the wettability of the deposited aluminum layer on the surface of the barium titanate coating is better, the uniform and compact coating tightly combined with the substrate can be obtained, the barium titanate nanoparticles form a microscopic coarse structure on the surface of the substrate, and the deposited aluminum layer is embedded into or wraps the structure; the mechanical binding force between the aluminum film and the substrate is remarkably increased through the physical anchoring effect.

The invention relates to an oil fume catalytic purification coating based on a multistage pore channel synergistic effect, a coating preparation method and a coating preparation method, and belongs to the field of functional coating materials. The oil fume catalytic purification coating based on the multistage duct synergistic effect is prepared from the following components in parts by mass: 30 to 50 parts of resin dispersion liquid; 20-40 parts of a porous adsorbent in-situ loaded metal oxide catalyst; 3-8 parts of a glass filler; 30 to 40 parts of an organic solvent; and 1-5 parts of an auxiliary agent. The melting and adhering effects of glass substances are effectively utilized to ensure that the coating does not drop powder and is high in binding force; the adsorption action of the porous adsorbent is effectively utilized to form adsorption sites and conduction sites, and the in-situ catalytic oxidation action of the porous adsorbent in-situ loaded metal oxide catalyst is added, so that the catalytic sites of the porous adsorbent in-situ loaded metal oxide catalyst are more in contact with pollutant molecules.

The invention relates to the technical field of composite materials, in particular to a method for quantifying the binding force of blended powder based on a laser particle analyzer, which comprises the following steps: dispersing to-be-measured blended powder containing first powder and second powder to enable part of the first powder and part of the second powder to fall off, the particle size of the first powder is larger than the particle size of the second powder; performing particle size analysis on the mixed powder by adopting a laser particle analyzer, recording particle size distribution data to obtain a particle size distribution curve, and analyzing the quantity proportion of the second powder in the mixed powder; and changing the dispersion method, re-dispersing the to-be-tested blended powder, analyzing the quantity proportion of the second powder under different dispersion methods, comparing the quantity proportion of the second powder under different dispersion methods, and evaluating the binding force of the first powder and the second powder. According to the method, the binding force of the to-be-tested blended powder adopting different dispersion methods under the same process route can be accurately represented from the microscopic level.

The utility model relates to an anti-corrosion oil delivery pipe which comprises a base body and a coating, the coating is formed on the surface of the base body and divided into a first protective layer, a second protective layer and a third protective layer, grooves and a plurality of micropores are formed in the outer surface of the base body, the first protective layer is sprayed on the outer surface of the base body, the second protective layer is coated on the outer surface of the first protective layer, and the third protective layer is coated on the outer surface of the third protective layer. And the third protective layer is sprayed on the outer surface of the base body. The spiral grooves are formed in the surface of the base body, shear stress between the coating and the interface of the base body is guided and dispersed through the spiral grooves, stress concentration is avoided, and therefore the durability and fatigue resistance of the combination portion of the coating and the base body are improved; the honeycomb-shaped micropores are formed in the surface of the base body, and the binding force between the coating and the base body is further enhanced through the barb effect, so that the coating is more firmly attached to the surface of the base body and is not prone to falling off.

The invention provides one-way wood fiber paper. The one-way wood fiber paper is formed by shrinking a one-way wood veneer in at least one direction, wherein a part of substances are removed from the one-way wood veneer; the partial substances comprise lignin and hemicellulose; the thickness of the unidirectional wood fiber paper is less than or equal to 0.6 mm; the apparent thickness of the unidirectional wood fiber paper under the plane pressure of not more than 0.005 MPa is not more than 4 times of the average thickness of the unidirectional wood fiber paper. Compared with the prior art, the unidirectional wood fiber paper provided by the invention is thin in thickness, excellent in mechanical property and anisotropic, is made of 100% pure natural materials, has a compact effect in the thickness direction after being shrunk, and meanwhile, the transverse binding force and compactness of the unidirectional wood fiber paper are increased; and transverse cracking of the unidirectional wood fiber paper is reduced.

The invention provides a rubber bolt composite coaxial connection design method, a connection device and a preparation method of an FRP rib, and relates to the field of reinforcing members in building structures, the design method comprises the following steps: based on a cantilever beam structure of a jamming bolt bearing the shear stress of a bonding medium, obtaining the jamming resistance of the jamming bolt; the bearing capacity of the bonding medium is obtained based on a double-broken-line model; carrying out stress analysis on the FRP rib, the bonding medium and the sleeve to obtain total bearing capacity Fj; and obtaining structural design parameters of the sleeve, the jamming bolt and the bonding medium according to connection bearing critical conditions and mechanical parameters of the FRP rib. Through the combined action of the constraint force of the sleeve, the binding force of the binding medium and the blocking force of the blocking bolt, the coaxial connection deviation value of the FRP rib is dynamically compensated, so that the problems that the FRP rib is easy to slip, insufficient in centering degree, remarkable in stress concentration and performance degradation caused by long-term creep or shrinkage in the connection process are solved, and the service life of the FRP rib is prolonged. And high redundancy and high reliability are provided through multiple force transmission paths and an active compensation mechanism.

The invention discloses marine rescue equipment, which belongs to the technical field of personal overwater safety equipment and comprises a front floating block binding mechanism serving as an inner layer and a rear floating block binding mechanism serving as an outer layer. The inner layer mechanism and the outer layer mechanism are combined through multi-point matching of the shoulders, the back and the waist, and stable closed-loop locking is formed through the crotch belt. The core innovation is that a precise and detachable mechanical linkage connection structure is arranged between the inner waistband and the outer waistband. When the equipment is lifted upwards in rescue, the structure can intelligently convert passive pulling force into active and radially inward hooping force, so that the inner waistband is automatically tightened, and the binding force between the equipment and the body of a user is greatly enhanced. Through a unique double-layer closed-loop structure and a dynamic self-locking mechanism, the rescue slippage risk is fundamentally eradicated, the structure is stable and reliable, and the safety and success rate of sea rescue are remarkably improved.

This utility model relates to a snap-fit ​​packaging cup sleeve, comprising a cup bottom plate, a cup side plate, and a cup lid plate. The cup bottom plate supports the bottom of the cup, the cup side plate is clamped to the cup side and forms at least two contacts with the cup side, and the cup lid plate is snapped onto the cup mouth and seals the cup mouth. Two detachable ends are formed from any one of the cup bottom plate, cup side plate, and cup lid plate, and these two detachable ends are joined to form a detachable connector to cover the cup body. This utility model, on the one hand, effectively prevents condensation from seeping into the cup through the covering method, thus preventing food spoilage or a decline in taste. It also reduces food exposure and the probability of dust and bacteria intrusion, improving food storage safety. On the other hand, it reduces the rate of misalignment or displacement of the cup lid during transportation. Furthermore, the detachable design facilitates operation, and the resulting binding force reduces the probability of the cup body shifting or detaching from the cup sleeve.

The invention relates to a dry-method electrode membrane supported by a skeleton membrane and a preparation method of the dry-method electrode membrane, and the dry-method electrode membrane comprises a porous skeleton membrane which is an ultrathin two-way stretched porous polymer membrane and has high porosity; and the dry-method electrode raw material is formed on the surface of the porous framework membrane and in pores. Specifically, the porous skeleton membrane adopts an ultrathin two-way stretching process to form a high-porosity structure, pores and the surface of the porous skeleton membrane provide uniformly distributed carriers for a dry-method electrode raw material, the use amount of a binder is reduced, and the binding force of an active substance and a conductive agent is enhanced. The dry-method electrode raw material is embedded into the surface and pores of the skeleton membrane, a three-dimensional conductive path is formed by using the high specific surface area and pore structure of the skeleton membrane, meanwhile, the preparation process is simplified, and the problems of increased surface resistance and low efficiency caused by a traditional spraying process are avoided.

The invention discloses a brake disc and a manufacturing method thereof and a vehicle, the brake disc comprises a base body and a friction layer, the base body comprises a first surface, the first surface is provided with a plurality of grooves, the plurality of grooves are regularly arranged, the friction layer is connected with the first surface, and at least the friction layer is accommodated in the grooves. By means of the arrangement, the contact area between the friction layer and the base body is increased through the regularly-arranged grooves, physical interlocking is formed between the friction layer and the base body, and the uniform mechanical locking and contact area is provided, so that the binding force is enhanced, and falling of the friction layer and the base body under the conditions of high temperature and severe friction is reduced.

The utility model discloses a novel noble metal pendant, include: main unit includes pendant main part, the utility model switches pendant main part demonstration surface time, and the user manually rotates pendant main part, and it is rotated with the aid of the outer ring inner chamber of rotating lever, because the opposite surface magnetic pole of first, second magnetic block is contrary, and rotates 180, and the front and back surface switching is completed, and the magnetic attraction will fix the position, prevent shaking, and the user can see another side, if adjust pendant main part chest position, and pull the connecting plate upward, and it will force through the rope and give the sliding block, and when the pulling force exceeds the binding force of two sliding blocks because of the magnet adhesion, the sliding block separates and slides in the sliding slot, and the outer ring and pendant main part drop along, and the user can adjust the suspension height as needed, solve the common pendant on market only can single -sided demonstration, and the wearing of turning over is complicated, and the suspension height is fixed, and the hidden inconvenience, and the practicability low problem.

The utility model relates to the technical field of steel skeleton foaming plates, in particular to a steel skeleton foaming plate which comprises a main steel skeleton frame, carbon fiber gridding cloth is fixedly connected to the inner lower wall of the main steel skeleton frame, and positioning clamping grooves are formed in the left portion and the right portion of the upper end of the main steel skeleton frame. The lower portion of the inner left wall and the lower portion of the inner right wall of the main steel skeleton frame are each provided with a plurality of tooth-shaped grooves with the upper ends penetrating through, the periphery of the upper end of the main steel skeleton frame is movably connected with bolts in a threaded mode, and the upper portion of the inner left wall and the upper portion of the inner right wall of the main steel skeleton frame are each provided with a sliding groove. According to the steel skeleton foaming plate, the carbon fiber gridding cloth, the bonding buffer layer structure, the waterproof reinforcing structure and the like are arranged, so that the structural strength of the steel skeleton foaming plate, the binding force between the steel skeleton and the foaming layer, the waterproof performance and the environment adaptability are improved; and meanwhile, the problems of easy separation, complex installation, poor waterproofness and the like of the traditional plate are solved.

According to the light-weight embossed composite paper material, by optimizing the distribution parameters of micro-embossed points, the gram weight of thin base paper and the stacking process, the interlayer binding force is improved while non-adhesive compounding is achieved, and the softness and the bulkiness of paper are considered; the paper specifically comprises three paths of thin body paper, one path of thin body paper is pre-embossed through mechanical nesting to form embossed body paper with shading patterns, the shading patterns are composed of a plurality of micro-embossed points, and then the pre-embossed embossed body paper and the other two paths of thin body paper are jointly joined and stacked to form a multi-layer paper web; the shading pattern of the embossed base paper meets the following characteristics: the total area of each micro-embossed point in the area of unit dm < 2 > accounts for 13-20%; and the point area of each micro embossing point is 0.015 to 0.23 mm < 2 >.

The invention relates to the technical field of textile chemical industry, and discloses a production process for improving the waterproof function of sweaters, which comprises the following steps: mixing acrylic resin, octamethylcyclotetrasiloxane, polyvinyl alcohol, a waterproof additive, a crosslinking monomer, a surfactant, an initiator and deionized water, and stirring to obtain a fabric waterproof agent; soaking the sweater into the fabric waterproof agent, stirring, taking out, padding and drying to obtain the waterproof sweater. A fabric waterproof agent formed by acrylic resin, octamethylcyclotetrasiloxane, polyvinyl alcohol, a compound waterproof additive, a cross-linking monomer, a surfactant and an initiator forms a compact waterproof layer on the surface of a sweater, so that the sweater has better waterproof performance, and the compound waterproof agent has the effects of wetting and permeating the surface of the sweater and forming a film; the binding force of the fabric waterproof agent on the surface of a sweater is remarkably enhanced, so that the sweater has relatively high long-acting waterproof performance.