148results about How to "No chromatic aberration" patented technology

The invention provides a glazed brick production process, belonging to the technical field of building ceramic production. The production process comprises the steps of forming cloth material, applying ground coat, printing, applying cover glaze, sintering, polishing and grinding, wherein ground coat used in the ground coat applying step is phosphor-boron or boron-calcium multiphase opaque glaze, and the ground coat contains 0.5%-3% (in percent by mass) of anatase titanium oxide and 0.5%-5% of attapulgite. Compared with the prior art, the glazed brick production process provided by the invention has the advantages that the glazed brick production process is less in ink dosage, clear in color, and almost free of chromatic aberration color cast; moreover, inkjet blocking probability is lowered, cleaning and maintaining times of a spray head are reduced, production continuity is improved, and a situation of midway downtime rarely happens except from necessary maintenance.

The invention relates to a preparation method of coolmax fiber / wool blend moisture absorbing / releasing tweed. The preparation method is characterized in that the tweed comprises the raw materials of 50% of wool and 50% of coolmax fibers in terms of mass percentage; the preparation method comprises the steps of dyeing and re-combing, spinning, weaving and post-treating; the coolmax fibers and the wool are respectively dyed in the process of dyeing and re-combing, wherein the coolmax fibers are dyed at 120 degrees centigrade by using mesothermal dyestuffs; the pH value is controlled at 3-5, the time for 60 minutes in the dyeing process; and the highly active cleaning agent ECO is employed for washing after the dyeing process. The tweed produced by the preparation method provided by the invention has the advantages of moisture absorbing and releasing, good strength, high fastness and uniform color.

This invention discloses a kind of oil applied to the polyester industry, its characteristic is that the oil is composed of the following component: (A) 5 ~ 70 weight % refining mineral oil; (B) 10 ~ 85 weight % polyatomic alcohol fatty acid esters; (C) 5 ~ 55 weight % copolymerizations ether; (D) 2 ~ 40 weight % fatty acid polyoxyethylene ester; (E) 1 ~ 15 weight % antistat; (F) 0.1 ~ 10%'s adhesion function improver. The oil can solve these defects of the present oil that both the heat resistance and the gluing function are bad. Since the heat resistance and the flatness are good, the smoke is few, the carbon build-up is few , waste thread rates is low in spinning handicraft; original silk brute force and modulus are good, maintained extension, breaking extension are low; The brute force loss in back handicraft processing is low , there is no color difference in the dyeing process.

The invention relates to a low-carbon water granite paint which comprises 30-60 parts of composition A, 10-30 parts of composition B, 15-30 parts of composition C and 0.2-1.2 parts of thickener D. Compared with natural stone, the low-carbon water granite paint has the following advantages: 1. light dead weight: the low-carbon water granite paint can not increase the load to buildings, can be applied to the basal plane of the external wall without the risk of shedding, and is very suitable for external thermal insulation; 2. strong simulation sensation: the low-carbon water granite paint can be compounded to simulate various types of granite without color difference; 3. the low-carbon water granite paint is free from the restrictions of the complex basal plane, can be easily used for construction, and can completely cover the wall without seams; 4. the pointing construction can sufficiently display the tactile sensation of the decoration design of the dry-hanging stone; and 5. the surface of the coating can be treated to enhance the pollution resistance and weather resistance, thereby reducing the maintenance. Compared with the traditional real stone paint, the low-carbon water granite paint has the following advantages: 1. material saving and light dead weight as compared with the real stone paint simulated granite; 2. simple construction: the low-carbon water granite paint can be sprayed by only a single gun, but the real stone paint simulated granite needs to be sprayed by multiple guns; 3. the effect of the low-carbon water granite paint is more similar to the natural stone than the real stone paint simulated granite; and 4. when the low-carbon water granite paint is used for large-area construction, people can not feel color difference of uneven color dots caused by using the real stone paint simulated granite.

The invention discloses a black master batch applied to a multipolymer (AS series plastic) containing acrylonitrile and styrene and a preparation method thereof. The black master batch consists of an acrylonitrile-styrene multipolymer, acetyl tri-n-butyl citrate, ethylene bis stearamide and a black pigment. Partial acrylonitrile-styrene multipolymer, the acetyl tri-n-butyl citrate and the ethylene bis stearamide are subjected to melting and banburying in a banbury mixer evenly, the black pigment is added, the mixture is subjected to banburying and dispersed evenly as well as cooled and crushed, and the mixture is mixed with the remaining acrylonitrile-styrene multipolymer and is extruded and granulated on a twin screw. The produced black master batch is easy to disperse in the AS series plastic, the process equipment requirement of the subsequent coloration of the plastic product is reduced, the equipment efficiency is improved, the coloured plastic product has even color, no color difference and high lustrousness.

The invention relates to a spray coloring stack dying process for cotton woven fabrics, Gray fabrics are dyed by adopting a reactive dye, an accelerating agent and an alkaline agent. The spray coloring stack dying process for cotton woven fabrics is characterized in that pre-processed gray fabrics are wound to two parallel fabric guide rollers, wherein one end of the gray fabrics is wound on the first fabric guide roller, and the other end of the gray fabrics is wound on the second fabric guide roller so that the gray fabrics between the two fabric guide rollers are in a flat condition; and spray heads are arranged on the front or / and the back of the flat gray fabrics opposite to the gray fabrics, and are used for applying a reactive dye water solution, an accelerating agent water solution and an alkaline agent water solution to the gray fabrics. In the process, the cotton woven fabrics and the dyeing solutions are in the ultralow proportion in weight of 1:1 to 1:1.5, the dye, and the accelerating agent and the alkaline agent are applied in a continuous and circular spray mode, and are stacked in a container in a temperature controlled condition so that more than 90% of the dye can be in linking reaction with the cotton fibers sufficiently. The spray coloring stack dying process for cotton woven fabrics has the advantages of high dyeing efficiency, low exhaust, no color differences among the front, middle and back parts as well as the left, middle and right parts, and flat dyed fabrics without color embossing.

The invention discloses a finish paint, particularly provides a water-based anticorrosive finish paint which comprises softened water, water-based polyacrylic emulsion, nano- pigment and filling and other necessary components, with the water-based finish paint with the above components adopted, coating effect of the oily propenoic acid finish paint can be achieved, the waterproofing and anti-corrosion property are good; in addition, the water-based propenoic acid finish paint adopts water as solvent with no pollution to the environment, no harm to health of constructors, and safe and convenient use; can adopts a general spraying method and can also be applicable to high-pressure airless spraying with high construction efficiency, no sagging and no cracking, the finish paint construction can be completed; the water-based propenoic acid finish paint can not only be applied to auto body decoration and protection, but also widely replaces oily propenoic acid finish paint for rust-resisting of steel materials in facilities, such as other vehicles, bridges and channels and the like.

The present invention relates to the fields of water-based wood lacquer colorizing paints and color matching water-based woodware top coats, and particularly relates to a novel colorizing water-based woodware top coat and a preparation method thereof. The novel colorizing water-based woodware top coat comprises the following components, by weight: 30-40% of a polyurethane emulsion, 5-10% of a film-forming agent, 0.1-0.5% of a defoamer, 20-30% of a solvent, 0.1-0. 5% of a pH adjusting agent, 0.1-0.5% of a leveling agent, 0.1-0.5% of a bactericide, 1-3% of a thickener, 1-15% of a water-based color concentrate, and the balance deionized water. The present invention has strong colorizing paint permeability, higher primer wetting effects, no contracted sides, black sides, blurs, pittings, orange peels or color differences, improves the padding formula and process of water-based wood lacquers, and enables uniform coloring of colored woodware varnish surfaces.

The invention provides a colour master batch for a TPU film. The colour master batch is mainly prepared from the following raw materials in parts by weight: 10-20 parts of TPU, 10-20 parts of nylon 6, 30-70 parts of pigments, 2-10 parts of a dispersant, 1-5 parts of a thermal stabilizer, 5-50 parts of fillers, 1-5 parts of a compatilizer and 1-5 parts of a lubricant. The dispersion uniformity of the colour master batch provided by the invention is improved by virtue of the matching action of the TPU and the nylon 6and the matching of other various components with specific contents, and the colour master batch is stable in colour, not liable to fade, and free from a chromatic aberration phenomenon.

The invention discloses a solar blind ultraviolet camera lens, which comprises a diaphragm, a first lens, a second lens, a second reflector, a first reflector, a third lens, an ultraviolet band pass filter and an image surface which are coaxially arranged from object space to image space in sequence, wherein the first lens and the second lens are positive lenses, while the third lens is a negative lens; front and back surfaces of the first lens, the second lens and the third lens are spherical surfaces which are convenient to process; reflecting surfaces of the second reflector and the first reflector are spherical surfaces which are convenient to process; and the center of the first reflector is provided with a transmission hole. The solar blind ultraviolet camera lens has the advantages of simple structure, convenient manufacture, large transmission aperture and high resolving power, and is applicable to corona detection.

A water-transferring patterned paper for ceramic is make up through preparing ink from inorganic pigment and ink oil containing ethylene-vinyl acetate, dibutyl phthalate and solvent, printing pattern, and coating surface film, which incldues coating prime film and printing screwn film. The liquid for prime film is prepared from ethylene-vinyl acetate, dibutyl phthalate and xylene. The liquie for screen film is prepared from methyl polymethylacrylate, dibutyl phthalate, xylene and butyl acetate. Its advantages include once calcining high productivity and high stability of product.

The invention relates to an anhydrous loam brick product repair agent, which is characterized in that the repair agent comprises the following components in percentage by weight: 15 to 25% of lime, 10 to 20% of old clay brick powder, 60 to 80% of quartz sand, 1 to 5% of pigment, 1 to 2% of redispersable rubber powder and 1 to 2% of other additives. Compared with the prior art, the invention can meet the special requirements on repairing old bricks especially brick sculptures, clay cultural relics and the like without whiskering, the product repaired with the repair agent has low-moderate intensity, and the repair point does not drop easily and has good weatherability.

The invention discloses efficient printing and dyeing equipment. The equipment comprises a shell, a stirring box and a water pump are fixedly connected to the two sides of the top of the shell respectively, and a first supporting plate is fixedly connected to the left side of the shell; a second supporting plate and a third supporting plate are fixedly connected to the top and bottom of the rightside of the shell respectively, and a first rolling cylinder and a second rolling cylinder are movably connected into the first supporting plate and the second supporting plate through hinge pins respectively. According to the efficient printing and dyeing equipment, through arrangement and cooperation of a first motor, stirring blades, a first electric heating wire, a water outlet pipe, a first connection pipe, a first spraying nozzle, a second connection pipe, a third connection pipe, a second spraying nozzle, a second electric heating wire and liquid discharging holes, the printing and dyeing equipment conducts efficient printing and dyeing and can make dye density more uniform, color difference of printed and dyed fabric or unstable coloring at partial portions cannot be caused, the quality of the fabric cannot be influenced, and the equipment helps people to use the fabric.

The invention discloses a portable laser-induced breakdown spectroscopy analysis device. The portable laser-induced breakdown spectroscopy analysis device comprises a laser device, a beam splitting unit, a reflection mirror group, an off axis parabolic mirror and a spectrograph; laser rays emitted by the laser device are transmitted to the reflection mirror group in parallel through the beam splitting unit, and are focused on the surface of a sample to be tested after reflected with the reflection mirror group; signal light rays emitted by the sample to be tested are emitted to the beam splitting unit after reflected with the reflection mirror group; the laser rays and the signal light rays are in coaxial in a light path between the beam splitting unit and the sample to be tested, are reflected to the off axis parabolic mirror through the beam slitting unit, and are transmitted to the spectrograph after reflected with the off axis parabolic mirror, and are connected with a control boxfor spectral analysis and display. By adopting the portable laser-induced breakdown spectroscopy analysis device, the defects existing in a transmission-type non-coaxial spectroscopy analysis device are overcome, meanwhile numerical aperture of focused laser rays is increased, focal spot number is reduced, the energy density of the laser rays acting on the surface of an object is increased, an requirement of an instrument on the energy of the laser device is met, so that the portable laser-induced breakdown spectroscopy analysis device has considerably foreseeable industrial and commercial application value.

The invention in particular relates to a color television imaging system spatial resolution detecting device. At present, color television spatial resolution is not high in measurement precision and not stable in measurement pattern. The color television imaging system spatial resolution detecting device disclosed by the invention comprises a color object generating module, a collimating parallel optical unit, a detected product and an adjusting platform, wherein the color object generating module comprises a light source, a luminance / chrominance control unit and a target; the collimating parallel optical unit is composed of an off-axis parabolic reflecting collimator relative to the center of a detected article, a semi-reflection mirror and a reflector. Through a test pattern generated by a double-integrating-sphere system adopted in the standard color object generating module and through feedback regulation, the detecting device disclosed by the invention can monitor luminance and chrominance of the test pattern in real time and change color information as required; through the off-axis parabolic reflecting collimator, the device can avoid chromatic aberration; meanwhile, the detecting device avoids a barrier in the central region of the collimator, thus guaranteeing a precision requirement.

The invention relates to a star sensor optical system, in particular to an all-weather ultra-large diameter broad-spectrum star sensor optical system. The optical system adopts a coaxial three-reflector structure form and comprises a first positive reflector, a second negative reflector, a third planar reflector and a fourth positive reflector, wherein the axis centers of the first positive reflector, the second negative reflector, the third planar reflector and the fourth positive reflector are sequentially arranged on the same straight line, and a diaphragm is arranged on the first positive reflector. The all-weather star sensor optical system resolves two technical problems of an existing star sensor optical system. One is that the existing star sensor optical system can be only used for measuring the outer space and can not achieve all-weather measurement. The other is that the existing star sensor optical system is small in caliber, the detectable limited magnitude is low, and the second-stage optical spectrum is large. The all-weather star sensor optical system is favorable for all-weather use of a star sensor, the caliber of the star sensor optical system is increased, the influence on the imaging quality of the optical system from color difference is avoided, and all-weather star sensor optical system is high in one-time detection probability and observable star magnitude.

The invention discloses an ultra-wide field-of-view off-axis three-reflector optical imaging system which comprises a main reflector with positive focal power, a second reflector with negative focal power, and a third reflector with positive focal power. The reflecting surface of the main reflector is a spherical surface. The reflecting surfaces of the secondary mirror and the third reflector are flat spherical secondary curved surfaces. The curvature radii of top points of the three reflectors approximately satisfy a flat image field condition. The main reflector generates a real image of a far scene between the main reflector and the second reflector. The second reflector and the third reflector perform relay imaging of the real image on an image plane. An aperture diaphragm is placed on the front focal plane of the third reflector, thereby realizing an image-side telecentric optical path. The main reflector inclines along an X-axis relative to incident main light of a central field-of-view. The second reflector is coaxial with the third reflector. After the main light of the central field-of-view in a meridian plane is reflected by the main reflector, an included angle is formed between the reflected main light and the common symmetric axis of the second reflector and the third reflector. The ultra-wide field-of-view off-axis three-reflector optical imaging system has advantages of ultra-wide field-of-view, intermediate relative aperture, wide working wave band, no image-side telecentric barrier, small object-side distortion, high imaging quality, etc. The ultra-wide field-of-view off-axis three-reflector optical imaging system is suitable for earth imaging observation field of a spatial camera, an imaging spectrometer, etc.

The invention provides a skin-care composition containing lotus active ingredients and a preparation method of the skin-care composition. The skin-care composition comprises the following components: glycerin, 1,3-butanediol, squalene, polydimethylsiloxane, modified polydimethylsiloxane, dicaprylyl carbonate, isopropyl myristate, cetearyl alcohol, white beeswax, titanium dioxide, iron oxides, sodium chloride, nuciferine, lotus pollen, allantoin, sodium hyaluronate, methylparaben, propylparaben, diazolidinyl urea, iron oxide red, iron oxide yellow, essence and deionized water. The skin-care composition is a powder product which takes full advantage of the lotus active ingredients, and the types and consumption of the various components are set reasonably; by adoption of the reasonable preparation method, the color of the prepared skin-care product approximates the human skin color, and the color difference is avoided after the skin-care product is applied to the skin surface; and meanwhile, the skin moisturizing degree is improved obviously, the skin trans-epidermal water loss is reduced, and the skin elasticity is improved.

The invention relates to pine-soot ink and a preparation method thereof, and belongs to the technical field of block printing. The pine-soot ink comprises the following components in part by weight: 90-100 parts of pine soot, 15-16 parts of strong flour, 5-6 parts of bone glue, 2-2.5 parts of grain wine, 2-2.5 parts of vinegar, 0.3-0.5 part of borneol, 0.7-1 part of Chinese angelica, 0.5-0.6 part of green wingceltis bark, 0.8-1 part of bletilla and a small amount of musk. The pine-soot ink is good in color stability, a printed finished product has no color difference, is not too bright or gloomy, and has unique primitive simplicity; the pine-soot ink does not deteriorate and offodor; when being used, the pine-soot ink is not bright when being thick and is not gloomy when being thin; the longer the pine-soot ink is stored, the thicker the book fragrance is; and the requirements of block printing are completely met, and the pine-soot ink is the only selection as the ink for fine block printing products.

The invention discloses a manufacturing process for middle-high-voltage etched foil, and relates to the technical field of production of etched foil. In order to solve the problem that etched foil isprone to deforming in the prior art, the manufacturing process comprises the steps of pretreatment, primary foaming corrosion, secondary foaming corrosion, third hole expansion corrosion and aftertreatment for high-purity aluminum foil; in the pretreatment, the aluminum plain foil is put into pretreatment liquid to be soaked for 40-50 seconds; then the aluminum plain foil is washed and then put into primary corrosion mixing liquid with the temperature of 80-90 DEG C, the foil is washed with pure water to be put into 2% of nitric acid liquid with the temperature of 70-80 DEG C, and direct current with the current density of 0.15 A / cm2 is applied for electrolytic corrosion for 500-600 seconds; and the aftertreatment adopts two-stage annealing heat treatment of different temperatures. The pretreatment process is simple, operation is convenient, deformation is avoided, the annealing process is improved in the aftertreatment, the two-stage annealing heat treatment of different temperaturesis adopted, and the bending performance of the etched foil for an aluminum electrolytic capacitor is greatly improved.

The invention discloses a singeing machine capable of feeding cloth by balanced tensile force. The singeing machine comprises a cloth storage box, a brushing box, a singeing box, a water washing box, a traction padder and a drying box, wherein a driving cloth feeding roller driven by a speed reducing motor is arranged between the cloth storage box and the brushing box; and an automatic tensile force adjusting device is arranged between the brushing box and the singeing box. According to the singeing machine disclosed by the invention, the driving cloth feeding roller driven by the speed reducing motor is arranged between the cloth storage box and the brushing box, and the automatic tensile force adjusting device is arranged between the brushing box and the singeing box, so that a surface linear speed of the driving cloth feeding roller is the same as that of the traction padder, and furthermore, a top-grade high-count thin type yarn-dyed jean fabric has the balanced tensile force in a region from the cloth storage box to the traction padder; and finally, the top-grade high-count thin type yarn-dyed jean fabric does not have off-color and color-lacking phenomena after being subjected to singeing treatment.

The invention discloses a matte finish-carving ink and a preparation method thereof. The ink comprises the following components in parts by weight: 15-25 parts of low-temperature high-boron frit, 5-10parts of bismuth vanadate, 5-10 parts of sodium feldspar, 5-10 parts of barium carbonate, 1-3 parts of mineralizer, 5-7 parts of a dispersing agent, 5-15 parts of ester compound and 40-60 parts of solvent. The ink is high in abrasion resistance, the imitated materials are vivid, there is no color difference after ink-jet printing, the lines are matte, the applicable temperature range is wide, theweather resistance is high, and the ink is not easy to crack at low temperature and high temperature; the preparation method is simple in process and suitable for large-scale production.

The invention relates to a novel aluminum corrosive foil pre-treatment process which comprises the following steps of: (1) putting an aluminum plain foil in a pre-treatment liquid to be soaked for 45s; (2) then cleaning the foil thoroughly, putting the foil in a primary corrosive mixed liquid at 70 DEG C, and applying a direct current, the current density of which is 0.70A / cm<2> for electrolytic corrosion for 60s; (3) cleaning the foil thoroughly with pure water, putting the foil in a tank liquid containing 2% of nitric acid at 70 DEG C, and applying a direct current, the current density of which is 0.15A / cm<2> for electrolytic corrosion for 600s; and (4) finally, cleaning the foil thoroughly with pure water, and then putting the foil in an oven at 220 DEG C to be dried. The process provided by the invention overcomes related defects that the corrosive foil which is pre-treated is likely to deform, the surface of the foil is of chromatic aberration after treatment, trace elements beneficial for generating holes will be removed through treatment, follow-up operations are not facilitated and the like.

The invention relates to aqueous marble-imitated colorful paint. The comprises the following ingredients, by weight, 200-300 parts of deionized water, 3.5-5.5 parts of hydroxyethyl cellulose, 10-15 parts of heavy calcium carbonate, 0.5-2.0 parts of wetting agent, 1.5-2.5 parts of antifoaming agent, 10-20 parts of propylene glycol, 8.5-10.5 parts of glycol, 17.5-20.5 parts of film forming auxiliary agent, 2.5-5.5 parts of polyurethane thickening agent, 350-450 parts of silicone acrylic emulsion, 2.5-4.5 parts of leveling agent, 0.1-0.4 part of drier, 2.0-3.0 parts of anti-sedimentation agent, 2.0-3.0 parts of antiseptic and 150-200 parts of color slices. The aqueous marble-imitated colorful paint is advantaged by excellent acid resistance, alkali resistance and chemical resistance, high ultraviolet resistance, super durability, anti-yellowing and water white resistance.

The invention provides an in-situ polymerization modified graphene and polyester composite chip as well as a preparation method and an application thereof. The composite chip is prepared from components in percentage by mass as follows: 50%-80% of PTA (purified terephthalic acid), 10%-40% of ethanediol, 0.1%-10% of graphene, 0.1%-1% of a modifier and 0.6%-1% of a catalyst. The in-situ polymerization modified graphene and polyester composite chip has excellent antibacterial, anti-mite, far-infrared and anti-ultraviolet properties, bacteriostasis rate of escherichia coli, staphylococcus aureus and candida albicans reaches 99.9%, anti-mite rate is up to 97.3%, far-infrared temperature rise reaches 0.88, far-infrared radiation temperature rise is up to 3.3 DEG C, a UPF (ultraviolet protectionfactor) is up to 218, and functionality is good. Besides, the prepared in-situ polymerization modified graphene and polyester composite chip is more uniform, spun filaments or short fibers have no chromatic aberration, furthermore, the technology is simple and easy to operate, and the composite chip is low in cost, high in economic benefit and suitable for large-scale industrial production.

The invention relates to micro-etching treating fluid. The micro-etching treating fluid comprises 30.0-60.0 g / L of sulfuric acid, 10.0-20.0 g / L of hydrogen peroxide, 0.1-1.0 g / L of hydrogen peroxide stabilizer, 2.0-5.0 g / L of inhibitor and 1 L of added water. The inhibitor is selected from the triamine base substituted phenol or the triamine base substituted thiophenol. The above micro-etching treating fluid is used for printed circuit board OSP pretreatment, a clean and rough copper surface can be formed, a protection film can be formed in combination with a copper face in the micro-etching process, the copper face electron supplying speed during the copper-gold electrochemical reaction is reduced, accordingly the potential difference between the copper and the gold is reduced, the biting corrosion rate of a copper welding pad is reduced, generation of the galvanic effect is restrained to the maximum degree, the phenomena of the color difference, area reduction or line excessive corrosion or even biting off cannot happen to the copper face connected with the gold face and obtained after micro-etching treatment, and meanwhile the phenomenon of coloring after OSP treatment can be effectively prevented from happening to the copper surface.

The invention relates to a treatment method of enhancing wood performance by quick dense carbonization. The treatment method comprises the following steps: (1) drying wood; and (2) placing the wood toa stainless steel electric heating plate, placing a perforated metal plate on the wood, heating, pressing and compacting the wood, wherein the compaction ratio of the wood is controlled at 6-25%, keeping the pressure state for thermal treatment for 1-30 min, and cooling and depressurizing the wood to obtain the dense carbonization enhanced wood. According to the treatment method provided by the invention, compact densification of the wood is achieved while the wood is carbonized, and the density of the wood is increased, so that the surface hardness and the bending strength of wood are enhanced, that is, the mechanical properties of the wood are improved.

The invention discloses blacking and its preparation method. The blacking comprises the following components by weight: 5-10 parts of carnauba waxes, 2-5 parts of stearic acid, 10-20 parts of ceresin, 5-10 parts of crude montan waxes, 80-100 parts of turpentine, and 1-5 parts of oil-soluble aniline black. The raw materials are subjected to heating melting, mixing, stirring, cooling and other steps so as to obtain the blacking, which can endow leather shoes with a uniform color and good glossiness when used for shoe polishing, and is environment-friendly and free of stimulating smell.

The invention relates to a connection fitting of a household product, which comprises a fitting body and a screw, wherein the screw comprises a screw head and a screw rod, and the screw rod is dividedinto a positioning section and a connecting section; a special-shaped channel in a racket shape is arranged on the fitting body and comprises a channel in a racket plate shape and a channel in a racket rod shape; a toothed body with an expansion function is arranged on the peripheral surface of the fitting body to form a first toothed surface, and at least a pair of positioning grooves and at least a pair of clamping strips which extend to two sides are respectively arranged symmetrically in the axial direction of the first toothed surface; two inner side surfaces of the channel in the racketrod shape on the fitting body form a second toothed surface; the distance between the two toothed surfaces is slightly smaller than the external diameter of the positioning section of the screw rod;a pair of inclined third toothed surfaces are formed between the second toothed surface and the back surface of the fitting body; and the integral gradient of each third toothed surface is matched with the external form of the bottom of the screw head, and the junction of each third toothed surface and the second toothed surface is slightly higher than the positioning section of the screw rod. Thefitting body can be fixed without using any screw thread, can be quickly assembled, and has high construction efficiency and firm connection.