44results about How to "Not easy to bleed" patented technology

The invention discloses a lignosulfonate-polycarboxylic acid copolymerized composite high-performance water reducer and a preparation method thereof. The high-performance water reducer comprises the components in parts by weight: 5-30 parts of lignosulfonate, 20-30 parts of methyl allyl polyethenoxy ether, 2-5 parts of acrylic acid, 1-5 parts of ammonium persulfate, 4-15 parts of sodium hydroxide and water. The preparation method comprise the steps as follows: lignosulfonate, methyl allyl polyethenoxy ether and acrylic acid are directly synthesized under the action of ammonium persulfate, and the mixture is neutralized by sodium hydroxide to obtain the high-performance water reducer. As the high-performance water reducer is made from natural recycled materials, the high-performance water reducer is low in price, stable in performance, high in water-reducing rate, good in collapse prevention property, remarkable in improved effect, and is unlikely to bleed, separate and deposit after concrete is added, the quality problems of sand leakage, honeycomb-like phenomenon and leakage due to cracking in the middle and low-strength concretes are effectively avoided, and the safety performance is improved.

The invention discloses a method for preparing a weather-resistant artificial granite water-in-water multi-color coating, and belongs to the technical field of a building coating material. The water-in-water multi-color coating adopts an aqueous polymer synthesis emulsion as a base material, kinds of water soluble substances are taken as assistants, so that the multi-color coating is free of ordor and free of pollution. The multi-color coating is simple in preparation technology, low in production cost, economical in construction material, and unique in decorative effect, and is an ideal health interior and exterior wall decoration materials. Compared with the other water-in-water multi-color coating in the market, the product disclosed by the invention has the advantages of being not easy to bleed color points, stable to store, long in expiration date, good in elastic crack resistance and good in weather fastness.

The invention relates to a method for preparing a pigment, in particular to a method for preparing pigment carmine 57:1. The preparation method of the invention comprises: preparing diazonium liquid and coupling liquid, wherein a polyacrylic acid polymer dispersant is added during the preparation of the coupling liquid; pouring the prepared coupling liquid into the diazonium liquid to perform coupling; performing post treatment, adding [R-COO-]2Sr<2+> and [R-COO-]3Al<3+> during the post treatment; and obtaining the finished pigment carmine 57:1 by pressure filtration, drying, combination, standardization and examination. The method mainly solves the technical problem that when used in an aqueous printing ink system, a red azo mordant pigment is limited in application because the aqueous printing ink with low alkali resistance and storage stability becomes coarse again easily and becomes high viscous and pasty in long-term storage in the prior art and other technical problems.

The invention discloses a preparation method of a micro-nano porous impermeable crack-resistance concrete additive, and belongs to the technical field of building water resistance. The preparation method comprises following steps: 1, preparation of a polycarboxylic acid water reducer; 2, raw material mixing; 3, additive mixing; and 4, finished product preparation. According to the preparation method, combined water resistance is replaced by concrete structure type water resistance, water-proof material cost is reduced greatly, multi-layer water-proof construction process is avoided, so that construction time is shortened, construction working efficiency is increased greatly, artificial construction steps are reduced greatly, artificial cost is reduced, and artificial construction imbalancehidden trouble is avoided; a concrete self water-proof system is adopted, so that water resistance lasting period is as long as building service life, in the prior art, maintenance cost is extremelyhigh because of leakage caused by various factors in water proof construction, while almost no daily maintenance is needed in the invented technology.

The invention belongs to the technical field of building materials, and particularly relates to a high-anti-permeability cement-based repair material for tunnel engineering. The repair material consists of portland cement, coal ash, silica fume, steel slag powder, rock powder, tailing sand, quartz sand, attapulgite, acrylate emulsion, cellulose ether, polyacrylamide, PVA fibers, PET fibers, a polycarboxylic acid water reducer and a defoaming agent. The repair material has the characteristics of easy construction, good working performance, good water retention performance, high compressive strength, high anti-permeability level, high toughness and adhesion, excellent durability and the like; and the repair material can be suitable for construction initial protection or engineering later maintenance and repair of lining concrete in the tunnel engineering.

The invention relates to the field of medical equipment and provides a circumcision device which ensures that a cut is tidy and a patient hardly bleeds after operation, and is convenient to operate and short in operation time. The circumcision device comprises an inner ring, a cutting knife and a cutter, wherein the cutting knife is annular and is fixedly connected with the inner ring; the cutting knife is provided with an annular tool bit which has an outward cutting edge; the cutter comprises a cutting strip; the cutting strip surrounds the periphery of the cutting blade, corresponds to the annular tool bit and can retract towards the annular tool bit; and the cutting strip is provided with a guide groove longitudinally; and an end face of the cutting knife is provided with a shoulder ring. The circumcision device performs redundant prepuce excision or phimosis operation, ensures that the cut is tidy and the patient hardly bleeds after the operation, and is convenient to operate and short in operation time.

The invention discloses a manufacturing method for a plastic plate internally provided with patterns. According to the method, the plastic plate is in a two-layer structure or a three-layer structure, and the patterns are printed on the inner surface of one layer of the two-layer structure or on the middle layer of the three-layer structure. The manufacturing method for the plastic plate internally provided with the patterns comprises the following steps of: firstly, printing the patterns on the inner surface of one layer of the two-layer structure or on the middle layer of the three-layer structure via high-definition inkjet; secondly, coating organic solvent glue water on the patterns; and finally, rolling and pressing the two-layer structure or the three-layer structure together via a rolling and pressing machine, and then naturally airing. Because the high-definition patterns are printed on the plastic plate by adopting a high-definition inkjet printing technology, and the plastic plate is bonded by using the organic solvent glue water, each layer of the plastic plate is not easy to fall off, and the pattern layer is not easy to discolour, fade and bleed; and moreover, the method is simple in operation and high in production efficiency.

The invention relates to mortar dry powder for building and plastering. The mortar dry powder is prepared from coal ash slag, a calcium desulfurization product, lime and an activator. The mortar dry powder for building and plastering has the advantages of good water-retaining property, low bleeding and separating possibility, anti-seepage, anti-freezing and anti-cracking performances, good bonding strength, easy construction, low cost and reduction of building cost. The mortar dry powder can properly solve the problems in preparation of building and plastering mortar by using high-quality cement, has remarkable environmental and social effects, meets the national policy of waste recycle, and complies with modern construction technique and quality management level.

The invention relates to the technical field of fluorescent pigment preparation, and discloses a gel preparation method of fluorescent pigment which comprises the following steps: (1) mixing and grinding inorganic silicate and fluorescent dye to obtain mixed powder; (2) adding sodium alginate into water, stirring until the sodium alginate is completely dissolved, adding the mixed powder, and uniformly stirring to obtain mixed slurry; (3) adding anhydrous calcium chloride into the mixed slurry, and uniformly stirring to obtain a gel intermediate; and (4) adding sodium carbonate into the gel intermediate, performing uniform stirring and precipitating, washing the obtained product until no flooding exists, and drying the product to obtain the fluorescent pigment. Fluorescent dye molecules areadsorbed through sodium alginate gel, and the gel layer is converted into an inorganic salt protective layer, so that the fluorescent pigment is not prone to bleeding, has good acid and alkali resistance and is more stable.

The invention belongs to the technical field of building materials, and specifically relates to a high-impermeability cement-based repair material for tunnel engineering, which is composed of Portland cement, fly ash, silica fume, steel slag powder, rock powder, tailings sand, quartz sand, Attapulgite, acrylate emulsion, cellulose ether, polyacrylamide, PVA fiber, PET fiber, polycarboxylate water reducer and defoamer. The invention has the characteristics of easy construction, good workability, good water retention, high compressive strength, high impermeability grade, high toughness, cohesiveness and excellent durability; the product of the invention can be applied to the construction of lining concrete in tunnel engineering Initial protection or post-project maintenance and repair.

The invention relates to a high-side wall concrete construction joint zero-defect construction method. A poured bin side joint is polished to be flat, circumferential cutting is carried out at the side joint to form a construction joint, the construction joint and a grinding area are cleaned, a double-faced adhesive tape is attached to the flat grinding area. before pouring of a to-be-poured bin,a trolley template, the cutting joint and the double-faced adhesive tape are pressed and sealed, the trolley template is controlled to compress the thickness of the double-faced adhesive tape, and therefore the trolley template and the poured bin side joint are closely attached without seam face fracturing. The high-side wall concrete construction joint zero-defect construction method overcomes the problems that the joint angle of an original high side wall lining construction joint has defects, lap joint sealing is not good, and the lap joint opportunity selection deviation has defects, and the beneficial effects that the lap joint is tight, the joint angle of the construction joint is free from defects, jointing and sealing are good, during pouring of the to-be-poured bin, fracturing ofthe side joint is not prone to generating, slurry seepage is not prone to happening, and operation is simple and convenient to achieve are achieved.

The invention discloses glossy sea-buckthorn pectin powder which comprises components in parts by weight as follows: 35-40 parts of maltodextrin, 25-30 parts of white granulated sugar, 20-25 parts of maltitol, 15-20 parts of sea-buckthorn powder, 1-1.5 parts of pectin, 0.3-0.5 part of citric acid, 0.3-0.4 part of sea-buckthorn essence, 0.1-0.15 part of sodium citrate and 0.02-0.04 part of gardenia yellow, and the glossy sea-buckthorn pectin powder is prepared by blending and mixing the components. Glossy sea-buckthorn pectin can be simply, conveniently and rapidly prepared by the glossy sea-buckthorn pectin powder. The glossy sea-buckthorn pectin powder is slowly added into quantitative hot water with the temperature higher than 80 DEG C while stirred rapidly, the powder is dissolved and uniformly stirred, and the glossy sea-buckthorn pectin is prepared; the prepared glossy sea-buckthorn pectin has bright color and luster, the glossy effect is obvious after the surface of a cake is coated with the glossy sea-buckthorn pectin, the color and the luster are bright and natural, the brushability is good, the glossy sea-buckthorn pectin is not prone to flow after coated, tastes fresh, delicate and moderate in sour and sweet, has pure and rich sea-buckthorn flavor and is appetizing; and the glossy sea-buckthorn pectin powder is a powdered product and is easier to store.

The invention relates to a high-performance polycarboxylic acid water reducing agent and a preparation method thereof, and belongs to the technical field of concrete admixtures in the construction industry. The high-performance polycarboxylic acid water reducing agent is a high molecular surfactant with a comb-type structure, wherein the high molecular surfactant is obtained by compounding of macromolecular compounds, comprising carboxyl and functional groups such as polyoxyethylene long chains, through free radical copolymerization with the presence of water as a solvent. Molecular main chains of the high-performance polycarboxylic acid water reducing agent are tightly adsorbed on the surfaces of cement particles, so that hydration reactions can be effectively inhibited to improve the plasticity retention; branch chains surround the cement particles to achieve the double effect of steric hindrance and electrostatic repulsion, which is completely different from the mechanism in which conventional water reducing agents disperse the cement particles through the electrostatic repulsion, so that high dispersing ability and good water reducing effect are achieved, and the comprehensiveperformance of concrete products is substantially boosted.

The invention relates to the technical field of building materials, in particular to self-compacting concrete prepared from modified ceramic polishing powder and a preparation method of the self-compacting concrete. The self-compacting concrete is prepared from the following raw materials: cement, modified ceramic polishing powder, fly ash, coarse aggregate, artificial sand, water and a polycarboxylic acid high-performance water reducing agent, the modified ceramic polishing powder is obtained by sequentially carrying out soaking treatment on ceramic polishing fine powder through a coupling agent solution and soaking treatment through a coupling agent solution added with cellulose ether and an organic silicon defoaming agent. The specific surface area of the ceramic polishing fine powder is 800-830 m < 2 > / kg. The self-compacting concrete is doped with the modified ceramic polishing powder, so that the compactness of the concrete can be effectively improved, the flowability and the water-retaining property of the self-compacting concrete can also be improved, more obviously, the later strength of the concrete is better improved, and the problem of shortage of mineral admixture resources can be effectively solved.

The invention discloses water-based fluorescent pigment for water-based ink and a manufacturing method of the water-based fluorescent pigment. The water-based fluorescent pigment comprises an antioxidant, polyacrylic resin, ethanol, fluorescent pigment, deionized water and other auxiliaries. The water-based fluorescent pigment is prepared from the multiple raw materials according to a reasonable matching ratio. The other auxiliaries include a wetting agent, a dispersing agent and light stabilizer. The adopted carrier resin in the water-based fluorescent pigment is the polyacrylic resin which is high in tinting strength, environmentally friendly and high in compatibility with water. The water-based fluorescent pigment for the water-based ink has the advantages of being environmentally friendly, sunproof, good in heat resisting performance, high in covering power, bright and pure in color, high in tinting strength, stability and compatibility with water-based ink and the like.

The invention discloses an oblique-angle micro-pore planting needle. The needle comprises a nut, a handle and a needle head, the top of the connecting rod is fixedly connected with a micro hydraulic cylinder, the upper end of the micro hydraulic cylinder is provided with a hair follicle placing cavity, an output end of the top of the micro hydraulic cylinder is fixedly connected with a hydraulic rod, the top of the hydraulic rod is fixedly connected with a rubber push plate, the hydraulic rod and the rubber push plate are located in the hair follicle cavity, the top of the hair follicle placing cavity, the top of the hair follicle placing cavity is connected with the needle head, the surface of the needle head is provided with scale marks, the corresponding position of the top of the needle head is provided with a needle head protecting sleeve, the needle head protecting sleeve is cooperatively connected with a rubber pad through two clamping plates, and the rubber pad is located between the tops of the two clamping plates. The needle has the advantages that the structure is novel, the automation level of the device is greatly improved, hole punching precision is higher, the needlehead is allowed to effectively control the needle head, the angle controlling of the needle head is easier, a scalp is not easily hurt in the planting process, blooding does not easily takes place inthe planting process, and hair is protected.

The invention relates to hami melon bright surface jelly powder. The jelly powder comprises the following components in parts by weight: 35-40 parts of maltodextrin, 25-30 parts of white granulated sugar, 20-25 parts of maltitol, 15-20 parts of hami melon powder, 1-1.5 parts of pectine, 0.3-0.5 part of citric acid, 0.3-0.4 part of hami melon essence, 0.1-0.15 parts of sodium citrate, and 0.02-0.04 part of chlorophyllin copper complex sodium salt. The hami melon bright surface jelly powder is prepared by compounding and mixing the components. A hami melon bright surface jelly is prepared by the Hami melon bright-surface jelly powder in a simple, convenient and quick way. Under rapid stirring, the hami melon bright surface jelly powder is slowly added into a fixed amount of hot water with the temperature being more than 80 DEG C, is dissolved in the hot water and uniformly stirred to obtain the hami melon bright surface jelly. The prepared hami melon bright surface jelly has a bright color, after the surface of a cake is coated with the hami melon bright surface jelly, the bright effect of the jelly is obvious, and the color of the jelly is smooth and natural. The coating effect is good, and after the cake is coated with the jelly, the jelly does not easily run off. The jelly tastes fresh and exquisite, and moderate sour-sweet and has an unadulterated and heavy hami melon flavor, so that the jelly tempts the appetite. The hami melon bright surface jelly powder is a powder product, so that the hami melon bright surface jelly is relatively easy to store and keep.

The invention discloses a pneumatic separation type stripper which is characterized by comprising an expansion air bag (1). An air inlet of the expansion air bag (1) is connected with one end of a hard inflation tube (2), the other end of the hard inflation tube (2) is connected with one end of an air delivery tube (3), the other end of the air delivery tube (3) is connected with an air outlet of an inflation handle (4), and a valve (5) is further arranged on the hard inflation tube (2) or the air delivery tube (3). The pneumatic separation type stripper has the advantages that shortcomings of severe bleeding and injury and difficulty in mastering layers during surgery in the past can be effectively overcome, gaps in non-traditional breast lacuna striping during domestic and overseas breast augmentation surgery can be filled, the pneumatic separation type stripper is simple in structure, convenient to operate, soft in texture and free of optional injury to human bodies, toxicity and peculiar smell and can be repeatedly disinfected and used, and obvious effects can be realized.

The invention relates to red date bright-face pectin powder which comprises, by weight, 35-40 parts of maltodextrin, 25-30 parts of white granulated sugar, 20-25 parts of maltitol, 15-20 parts of red date powder, 1-1.5 parts of pectin, 0.3-0.5 part of calcium gluconate, 0.3-0.4 part of red date essence and 0.02-0.04 part of monascus color which are mixed. The red date bright-face pectin powder is simple, convenient and fast in making red date bright-face pectin. The made red date bright-face pectin is bright in color, evident in brightness effect after coating the surface of a cake, bright and natural in color, good in hanging and coating performance, less prone to flowing after coating, smooth and fine in taste, rich and pure in red date flavor and capable of stimulating appetite. Due to the fact the red date bright-face pectin can be immediately made according to the required amount and immediately used, the preservation problem of residual products can be avoided, and the red date bright-face pectin powder is easy to store and preserve.

The invention discloses a lignosulfonate-polycarboxylic acid copolymerized composite high-performance water reducer and a preparation method thereof. The high-performance water reducer comprises the components in parts by weight: 5-30 parts of lignosulfonate, 20-30 parts of methyl allyl polyethenoxy ether, 2-5 parts of acrylic acid, 1-5 parts of ammonium persulfate, 4-15 parts of sodium hydroxide and water. The preparation method comprise the steps as follows: lignosulfonate, methyl allyl polyethenoxy ether and acrylic acid are directly synthesized under the action of ammonium persulfate, and the mixture is neutralized by sodium hydroxide to obtain the high-performance water reducer. As the high-performance water reducer is made from natural recycled materials, the high-performance water reducer is low in price, stable in performance, high in water-reducing rate, good in collapse prevention property, remarkable in improved effect, and is unlikely to bleed, separate and deposit after concrete is added, the quality problems of sand leakage, honeycomb-like phenomenon and leakage due to cracking in the middle and low-strength concretes are effectively avoided, and the safety performance is improved.

The invention discloses a water-based nano sealing coating for an automobile wood interior and a preparation method of the water-based nano sealing coating. The water-based nano sealing coating comprises the following raw materials in percentage by mass: 66-80% of water-based nano resin; 16%-30% of deionized water; 0.1%-0.5% of a water-based acid-base balancing agent; 0.1%-0.5% of a water-based surfactant; 1%-2% of a water-based dispersant; and 0.5%-1% of a water-based thickening agent. The water-based nano sealing coating disclosed by the invention can be used for well sealing the automobile wood interior trim, isolating internal pigment permeation of the automobile wood interior trim and permeation of water vapor in air, solving the sealing problem of the automobile wood interior trim, enabling the automobile wood interior trim not to be easy to bleed, discolor and crack, greatly reducing the VOC content, and being non-toxic and odorless; the paint can well protect the safety of coating workers and environment in a vehicle factory, and is a non-dangerous chemical. In addition, the water-based nano sealing coating is convenient to prepare, reasonable in proportion and low in production cost.

The invention relates to glossy apricot apricot pectin powder which comprises components in parts by weight as follows: 35-40 parts of maltodextrin, 25-30 parts of white granulated sugar, 20-25 parts of maltitol, 15-20 parts of apricot powder, 1-1.5 parts of pectin, 0.3-0.5 parts of citric acid, 0.3-0.4 parts of apricot essence, 0.1-0.15 parts of sodium citrate and 0.02-0.04 parts of gardenia yellow, and the glossy apricot pectin powder is prepared by blending and mixing the components. Glossy apricot pectin can be simply, conveniently and rapidly prepared from the glossy apricot pectin powder. The glossy apricot pectin powder is slowly added into quantitative hot water with the temperature higher than 80 DEG C while stirred rapidly, the powder is dissolved and uniformly stirred, and the glossy apricot pectin is prepared. The prepared glossy apricot pectin has glossy color and luster, the glossy effect is obvious after the surface of a cake is coated with the glossy apricot pectin, the color and the luster are glossy and natural, the brushability is good, the glossy apricot pectin is not prone to flow after coating the surface of a cake, tastes fresh, delicate and moderate in sour and sweet, has pure and rich apricot flavor and is appetizing; and the glossy apricot pectin powder is a powdered product and is easier to store.

The invention discloses purple sweet potato glossy pectin powder. The powder comprises the components in parts by weight as follows: 35-40 parts of maltodextrin, 25-30 parts of white granulated sugar, 20-25 parts of maltitol, 15-20 parts of purple sweet potato powder, 1-1.5 parts of pectin, 0.3-0.5 part of calcium gluconate, 0.3-0.4 part of purple sweet potato essence and 0.01-0.02 part of a purple sweet potato pigment, and the powder is formed through batching and mixing. The purple sweet potato glossy pectin powder can be used for preparing purple sweet potato glossy pectin simply, conveniently and quickly. The prepared purple sweet potato glossy pectin is bright in color, is obvious in brightening effect, smooth and natural in color and good in smearing property after being applied to cake surfaces, is not prone to flow after being smeared, tastes smooth and fine, has the pure and rich purple sweet potato flavour and is appetizing. The powder can be prepared and used according to the required amount, so that the problem of storage of residual products is solved; and the purple sweet potato glossy pectin powder is a powdery product, so that the powder is easier to store.

The invention belongs to the technical field of building materials, in particular to inorganic hollow vitrified microbead thermal insulation mortar and a preparation method thereof. The mortar is prepared from cement, fly ash, ash calcium, hollow vitrified micro bubbles, rubber powder, cellulose and a thickening agent. By adjusting the dosage ratio of the components, the mortar has the excellent properties of heat preservation and insulation, fire prevention, freezing prevention and aging resistance, the phenomena of hollowing, falling, pulverization and cracking easily occurring after plastering are avoided, rework is avoided, the product quality is guaranteed, and the mortar has good fineness and operation hand feeling and is good in water retention performance and not prone to bleedingcompared with traditional mortar.

The invention discloses red printing ink for wash label printing, which comprises the following components according to mass percent: 0.8% of C.I. acid red 52, 0.7% of C.I. acid red 289, 16-19% of diethylene glycol, 6-9% of triethylene glycol monobutyl ether, 0.4-0.5% of surfactant and the balance of deionized water. The invention further discloses a preparation method of the red printing ink for wash label printing. A pattern printed by the red printing ink prepared by the method is good in quality, unlikely to bleed, free of bur and good in fastness to rubbing, and the pattern has certain light fastness.

The invention discloses printing ink for wash labels, which comprises the following components according to mass percent: 0.22-0.4% of C.I. direct black 68, 2.5-3% of C.I. direct black 19, 0.5% of glycerol, 5% of 1,3-dimethyl-3-imidazolone and the balance of deionized water. The invention further discloses a preparation method of the printing ink. A pattern printed by the printing ink prepared by the method is good in quality, unlikely to bleed, free of bur and good in fastness to rubbing, and the pattern has certain light fastness.

The invention discloses a concrete nanocrystalself-compacting agent and a preparationmethod thereof and solves the problem of severe water leakage condition of a building due to unreasonable raw material design of concrete in the prior art. The concrete nanocrystalself-compacting agent is prepared from raw materials in parts by weight as follows: 9-11 parts of methoxypolyethylene glycols, 5-7 parts of maleic anhydride, 5-7 parts of hydroquinone, 50-53 parts of tap water, 7-9 parts of nanometer aluminium oxide, 12-14 parts of cane molasses and 4-5 parts of sodium dichromate. The raw materials replace a water reducing agent, a pumping aid, a retarder, an expanding agent and a waterproof agent with single function in the concrete, one agent is multipurpose, the problem of proneness to chemical incompatibility caused by mixed use of admixtures is solved, few water leakage conditions are caused in a practice process, the service life of the building is long, and the social benefit is remarkable.

The invention discloses a preparation method of a highly weather-resistant imitation granite water-in-water multicolor paint, which belongs to the technical field of building coating materials. The water-in-water multicolor paint uses water-based polymer synthetic emulsion as a base material, and various water-soluble substances as auxiliary It is odorless and pollution-free. Its preparation process is simple, its production cost is low, its construction materials are saved, and its decoration effect is unique. It is an ideal healthy interior and exterior wall decoration material. Compared with other materials on the market, this product Water-in-water multi-color paint has the advantages of not easy bleeding of color spots, stable storage, long shelf life, elasticity and crack resistance, and good weather resistance.

The invention discloses an eyebrow tattooing method implemented through washing. The method comprises the following steps of 1, cleaning local parts of eyebrows with disinfectant for disinfection; 2, designing the standard eyebrow style according to the golden section proportion between the face length and the face width; 3, selecting blended color materials according to the skin color and the eyebrow color of a person with the eyebrows tattooed, so that the color of tattooed eyebrows is consistent with the color of the eyebrows of the person with the eyebrows tattooed; 4, using an eyebrow melting instrument to puncture the skin by vertically entering a needle, bringing the color materials below the epidermis in a mode of dotted needle entry, and tattooing multiple brows in the growing direction of the eyebrows from each brow head. By means of the eyebrow tattooing method implemented through washing, almost no wound or skin damage is caused; due to dotted needle entry, bleeding does not occur easily, the eyebrow parts do not get red and swollen, it only takes about 8 minutes to restore, certain food does not need to be avoided, and water does not need to be avoided after eyebrow tattooing either; in addition, no scar is left, and the situation that eyebrows cannot emerge due to hair follicle is damaged is avoided.

The invention discloses pineapple surface-brightening pectin powder which is formed by, by weight, 35-40 parts of maltodextrin, 25-30 parts of white granulated sugar, 20-25 parts of maltitol, 15-20 parts of pineapple powder, 1-1.5 parts of pectin, 0.3-0.5 part of citric acid, 0.3-0.4 part of pineapple flavor, 0.1-0.15 part of sodium citrate and 0.002-0.004 part of lemon yellow through burdening and blending. Using the pineapple surface-brightening pectin powder to prepare pineapple surface-brightening pectin is simple, convenient and quick. A method for preparing the pineapple surface-brightening pectin includes slowing adding the pineapple surface-brightening pectin powder while quickly stirring into hot water in a fixed amount and at temperature higher than 80 DEG C, dissolving and stirring uniformly to obtain the pineapple surface-brightening pectin. The prepared pineapple surface-brightening pectin is bright in color and luster, obvious in brightening effect after being coated on the surface of a cake, smooth and natural in color and luster, high in coating performance, less prone to draining after being coated, clear and exquisite in taste, moderate in sourness and sweetness, pure and strong in pineapple flavor and tempting in appetite. The pineapple surface-brightening pectin powder is a powdery product, thereby being easier to store and preserve.