262results about How to "No bleeding" patented technology

A recording ink containing at least a solid component which contains a colorant and a resin and is a solid at 25° C., a liquid component which has a higher boiling point than that of water and is a liquid at 25° C. and water, wherein the total content of the liquid component in the recording ink is 20% by mass or less, the total content of the solid component in the recording ink is 20% by mass or more, and the total content of a resin component in the solid component is 40% by mass to 95% by mass relative to a total amount of the solid component is provided.

Novel processes for printing high quality, high resolution, multi-color images on darkly colored fibrous or porous materials or other ink absorbing materials, is disclosed. The processes are effected by digitally printing a layer of an opaque, lightly colored ink composition, followed by digitally printing the colored image thereon, and optionally further involve applying a wetting composition prior to and / or subsequent to these printings. Processes utilizing wetting compositions and / or liquid ink compositions which can interact therebetween so as to effect a chemical and / or physical change in one or more of these compositions are further disclosed.

The invention relates to a cement-based shrinkage-free joint filling sealing mortar for doors and windows and a preparation method and a construction method thereof. The sealing mortar is prepared by the components in parts by weight as follows: 100 parts of cement, 0-80 parts of active admixture, 0.01-10 parts of water reducer, 0.01-10 parts of early strength agent, 0.01-10 parts of thickening time control agent, 0-25 parts of expanding agent, 0-30 parts of binder, 0-10 parts of air entraining agent, 0.01-30 parts of plastic retaining agent, 0.01-10 parts of moisture repellent, 0-5 parts of starch ether, 0-150 parts of powder filler and 0-300 parts of aggregate. Compared with the prior art, the mortar provided by the invention has the advantages of no shrinkage, strong binding power, no falling, good anti-permeability, simpleness in construction, efficiency and the like, and can adequately fill joints of doors and windows to ensure the sealing property around the doors and windows, and water is prevented from being seeped into the doors and windows.

The invention relates to cement-based shrinkage-free wall hole-penetrating blocking materials and a preparation method and a construction method. The materials comprise, by weight, 100 cement, 0-100 active admixture, 0.01-10 water reducing agent, 0.01-10 early strength agent, 0.1-30 expanding agent, 0-20 adhesion agent, 0-10 water repellent, 0.01-30 plastic retaining agent, 0.01-10 starch ether, 0-60 power filler and 0-300 aggregate. Compared with the prior art, the cement-based shrinkage-free wall hole-penetrating blocking materials have the advantages of being good in construction performance, and long in operational time. New mixing slurry has good plasticity, adhesive power and anti-falling performance, a caulking gun or a caulking machine can be used for pressing, injecting or sealing holes, a flowing phenomenon cannot appear even big holes are filled, and the big holes can be filled until the big holes are full and until reaching the deep hole, and completely sealed, and the sealing materials can fully come into play.

The invention provides an additive composition used for a high-ductility fiber-enhanced cement based composite material. The additive composition comprises, by weight percentage, 20-85% of a rheological adjusting component, 2-30% of a setting and hardening adjusting component, 1-20% of an interlayer bonding strength adjusting component, 4-40% of a volume stabilizer, and 1-10% of a water reducer. The invention further provides a high-ductility fiber-enhanced cement based composite material based on the additive composition. Through optimal design of the additive composition and aggregate, the workability and the setting and hardening speed of a material is adjusted, and the printability, constructability, and the interlayer bonding strength of the high-ductility fiber-enhanced cement based composite material in 3D printing are improved. Compared with a 3D printing building material in the prior art, the composite material shows excellent whole performance. A component made from the composite material can meet the ductility of structural requirements without steel bars, thereby solving the problem that a component made from a 3D printing building material in the prior art is finally broken in a brittle failure manner.

The invention relates to a method for preparing a modified aliphatic high-efficiency water-reducing agent by utilizing lignosulfonate, belonging to the field of concrete water-reducing agents. The invention adopts acetone and formaldehyde as condensation monomers and lignosulfonate as a modifying agent and carries out sulfonating and condensation reactions under an alkaline condition to produce anovel high-efficiency concrete water-reducing agent. The preparation method of the novel high-efficiency concrete water-reducing agent comprises the following steps: (1) adding a sulfonating agent, acetone and water to a reactor, increasing the temperature to 25-65 DEG C and reacting for 0.1-1.5 hours; (2) dipping part of formaldehyde solution for 0.25-2.5 hours, increasing the temperature to 70-95 DEG C and reacting for 1-6 hours; and (3) decreasing the temperature to below 60 DEG C, adding the lignosulfonate and the rest of the formaldehyde solution to the reactor, using an alkaline regulator to regulate a pH value of the system to be 8.0-14.0, increasing the temperature to 70-98 DEG C, reacting for 1-5 hours and decreasing the temperature before discharging. The modified aliphatic high-efficiency water-reducing agent is suitable for producing commercial concrete which has similar color as normal concrete and has smaller collapsed slump loss. By adjusting the process, such as proportioning raw materials, and the like and effectively utilizing the lignosulfonate, the invention not only decreases the product cost, but also lessens environmental pollutants and has favorable industrialized prospects.

A circumcision anastomat is structurally characterized in that a glans penis head is an oval cavity, the left side of the oval cavity is open, the top of the right end of the glans penis head is fixedly connected with the left end of a glans penis head pull rod, an angle of 45-90 degrees is formed between the head body center axis of the glans penis head and the plane of a glans penis head edge, clamping grooves are formed in the glans penis head edge, an elastic ring which is matched with the clamping grooves to be used is arranged in the clamping grooves, a circumcision body which can slide along the glans penis head pull rod is arranged on the glans penis head pull rod coaxially, a blade is arranged on the inner side of the circumcision body, a fixed handle is arranged on the circumcision body coaxially, a movable handle is connected with the left side of the fixed handle, the left end of the circumcision body is contacted with the movable handle through a damping piece, a reset spring and an insurance piece are connected between the movable handle and the fixed handle, a tractive rotary knob is arranged on the right side of the movable handle, and the right end of the glans penis head pull rod is connected with the tractive rotary knob through a threaded structure. By means of the circumcision anastomat, circumcision anastomose operations are simple, efficient, safe and fast, surgical wounds are smooth and attractive and are in conformity with normal anatomical structures and appearances, and requirements for postoperative care are low.

The invention discloses ultrahigh-strength concrete which comprises the following components in parts by weight: 300-350 parts of cement, 270-315 parts of composite mineral admixture, 30-35 parts of composite expanding agent, 96-112 parts of water, 680-720 parts of river sand, 1012-1080 parts of gravel, 13.2-14.0 parts of polycarboxylic acid high-efficiency water reducing agent, 4.4-4.7 parts of plastic retaining agent and 0.18-0.21 part of defoaming agent, wherein the composite mineral admixture is prepared from 42-49 parts of ore powder, 150-175 parts of fly ash, 30-35 parts of silica fume, 18-21 parts of zeolite powder and 30-35 parts of wollastonite powder. The invention is characterized in that the 60d concrete compression strength is 140-160 MPa, the 60d splitting tensile strength is 9.2-10.2 MPa, extruded concrete can achieve self-compaction effect within 3 hours, and the 14d self-shrinkage value is less than 0.05%.

The invention discloses a sternum gathering up holder. The sternum gathering up holder comprises a locking wheel, a male fixing component and a female fixing component, wherein the male fixing component and the female fixing component can be connected together in an inserting mode. The section of the locking wheel is of an olive shape or an oval shape. The male fixing component is provided with an elastic plug and a first paw-shaped hook plate, wherein first saw teeth are arranged at two sides of the elastic plug, a tightening groove is formed in the middle of the elastic plug, and a locking hole which is in transition fit with the outer wall face of the locking wheel is formed in the tightening groove, and the long axis direction of the locking hole is the insert-connect direction of the male fixing component and the female fixing component. The female fixing component is provided with a second paw-shaped hook plate and a plug seat, wherein the plug seat is provided with an inserting groove which is matched with the elastic plug, second saw teeth which are matched with the first saw teeth are arranged on two sides of the inserting groove, the rotatable locking wheel is installed inside the locking hole so as to rotate the locking wheel. When the tightening groove is enlarged, the second saw teeth are meshed with the second saw teeth. When the tightening groove is decreased, the first saw teeth are separated from the second saw teeth. The sternum gathering up holder is not only capable of conveniently adjusting the opened chest gathering up width, but also easy and convenient to fix and stable, and capable of not producing cutting phenomenon to sternum.

A recording ink containing at least a solid component which contains a colorant and a resin and is a solid at 25 DEG C, a liquid component which has a higher boiling point than that of water and is a liquid at 25 DEG C and water, wherein the total content of the liquid component in the recording ink is 20% by mass or less, the total content of the solid component in the recording ink is 20% by mass or more, and the total content of a resin component in the solid component is 40% by mass to 95% by mass relative to a total amount of the solid component is provided.

The invention relates to a polymeric cement gravity flow leveling material prepared from silicate cement, polymer emulsion powder, high-alumina cement, mineral blending materials, high efficiency water reducing agent, defoaming agent, and quartz sand and with right weight ratio through finite process, material possesses good mobility, stability, high early stage folding and compression resistant strength, thus can be widely applied in ground surface leveling and mending of old ground surface, sand streak ground surface and ground surface with less qualified construction.

The invention provides a preparation method of a slushing agent for concrete. The preparation method comprises the following steps in sequence: implementing the first reaction between maleic anhydride and hydroxypropyl methyl cellulose in glacial acetic acid under the catalysis of acetate, so as to obtain the hydroxypropyl methyl cellulose monomaleate; and carrying out free radical polymerization between methyl allyl polyoxyethylene ether, acrylic acid solution and hydroxypropyl methyl cellulose monomaleate under an oxidentive-reductive initiation system, so as to obtain the slushing agent for concrete. According to the slushing agent for concrete, prepared by the preparation method provided by the invention, the molecular structure contains the hydroxypropyl methyl cellulose molecular structure unit, so that the macromolecules of the slushing agent can be entangled with each other to form a net-shaped structure to wrap cement and water for effectively preventing the moisture in the mortar from evaporating, and as a result, the slump keeping property is good. The invention also provides the slushing agent for concrete, and the slushing agent for concrete has the structure as shown in formula (1).

A sheath assembly for different fields of endoscopic surgery involving suction, irrigation and material removal which would on one hand enable reducing the size of keyhole to do the endoscopic surgery making it minimally invasive surgery, minimal damage to surrounding organ and practically no bleeding, faster recovery and early discharge and yet on the other hand provide for the advantages of big hole surgery. The sheath assembly of the invention would enable using variety of sheath sizes of different length and width of working sheath and thus facilitate applying to neonates as well as morbidly obese patients. The sheath assembly would enable endoscopic surgery such as percutaneous renal surgery with even about 3.0 mm inner diameter tubular sheath for large varieties of stones which would further add comfort and extra safety both for the patient as well as the surgeons.

The invention discloses a pretreatment liquid for cold transfer digital ink-jet printing and an application method of the pretreatment liquid. The pretreatment liquid for cold transfer digital ink-jet printing contains pseudo plastic rheological etherified starch, an alkaline agent, urea and water. In the rotary screen sizing process, a fabric to be printed is treated by the pretreatment liquid and then closely bonded with a digital ink-jet transfer printing medium, and jet-printing patterns are transferred from the medium to the fabric by use of a transfer printing machine. The pretreatment liquid can effectively prevent transfer of dyes to the inside of the fabric to increase the surface dye-uptake rate of the fabric. In case of the same ink amount, the color of the product is darker than that of the conventional cold-transfer printing.

Novel processes for printing high quality, high resolution, multi-color images on darkly colored fibrous or porous materials or other ink absorbing materials, is disclosed. The processes are effected by digitally printing a layer of an opaque, lightly colored ink composition, followed by digitally printing the colored image thereon, and optionally further involve applying a wetting composition prior to and / or subsequent to these printings. Processes utilizing wetting compositions and / or liquid ink compositions which can interact therebetween so as to effect a chemical and / or physical change in one or more of these compositions are further disclosed.

The invention provides super retarding concrete which comprises the following components by weight percentage: 11-16 percent of cement, 2-4 percent mineral powder, 3-5 percent of coal ash, 23-30 percent of sand, 39-50 percent of crushed stone, 0.15-0.3 percent of retardant, 0.2-0.4 percent of additive and 7-12 percent of water, wherein the sum of the percentage contents of all components is 100 percent. The super retarding concrete greatly prolongs the setting time under condition of ensuring adequate long-term strength, has the advantages of good cohesiveness and water retention, and avoids segregation and bleeding phenomenon before or after being poured.

In color ink-jet recording, even if a black image is recorded adjacent to a color image, the present invention prevents bleeding between black ink and color ink to achieve a high recording grade. In a divided recording method, as division patterns used to allot image data to each recording scan, different division patterns are provided for black image data and for color image data. The division patterns for black and another color used during the same scan have different allotment rates so that the amount of image data allotted to the same scan varies between black and the other colors. As a result, the amount of image data recorded during the same scan also varies between black and the other colors. This reduces the frequency with which the black ink and the color ink are provided adjacent to each other during the same scan.

The invention relates to a hydrocolloid oil yarn. The hydrocolloid oil yarn comprises a base material and a hydrocolloid ingredient, wherein the base material is netty polyester fiber; the hydrocolloid ingredient comprises the following raw materials in parts by weight: 8 to 10 parts of thermoplastic elastomers, 16 to 30 parts of sodium carboxymethylcellulose, 1 to 5 parts of growth factor microspheres, 1 to 5 parts of chitosan, 100 to 200 parts of liquid paraffin, 30 to 40 parts of Vaseline and 5 to 10 parts of wool fat. The content of grown factors inside the grown factor microspheres is 0.01wt% to 0.03wt%.

The invention relates to non-sterides antipyretic-analgesic and anti-inflammatory drug with enteric solubility and the preparation thereof; when the non-sterides antipyretic-analgesic and anti-inflammatory drug is taken orally, the confessed side effects such as nausea, emesis, gastric ulcer, gastric perforation, gastrorrhagia, edema, and the like on the gastrointestinal tract of human body and animals caused by the drug are avoided.

The invention relates to a low-temperature early strong bridge support anchoring material which is prepared from the following components in percentage by weight: 38-45 percent of aluminum sulfate cement, 2-6 percent of expanding agent, 1-5 percent of superfine silica fume, 40-50 percent of quartz sand, 0.5-0.8 percent of water reducing agent, 0.5-1 percent of reinforcing agent, 0.1-0.4 percent of thickening time control agent, 0.02-0.06 percent of defoaming agent, 2-5 percent of anti-freezing agent and 0.04-0.08 percent of fluid volume stabilizing agent. All the components are uniformly mixed, mixed with water and stirred, wherein the ratio of material to water is 0.13-0.16; and after being uniformly stirred, the mixture is used for support grouting anchoring. The low-temperature early strong bridge support anchoring material is suitable for rapid construction of bridge support anchoring under the low-temperature condition, and has the characteristics of high fluidity, super easy strong high strength, no shrinkage, good anti-freezing effect and the like.

The present invention relates to the production process of water reducer for cement and concrete, and belongs to the field of building material technology. The water reducer consists of calcium lignosulfonate, p-aminobenzenesulfonic acid, phenol, alkali and formaldehyde, and is produced into water preparation via adding water in 1-3 times. The production process includes heating water to 85-100 deg.c, adding the said materials successively via stirring, cooling to room to form water preparation, or further drying to form powder preparation. The present invention has the advantages of low temperature and normal pressure production, easy control of technological process, no environmental pollution, high function of controlling flowability loss of cement slurry and concrete and no harm to concrete durability.

The invention discloses a geopolymer grouting material applicable to using in a cold region, relates to geopolymer grouting materials, and is used for solving the problems that the existing grouting material is high in production cost, poor in liquidity, poor in strength and poor in anti-freezing effect. The geopolymer grouting material consists of solid particles and an excitant, wherein the solid particles consist of coal ash, mineral slag and fine aggregate; the excitant is sodium silicate with modulus of 0.8-3.0. The geopolymer grouting material disclosed by the invention adopts the coal ash and the mineral slag industrial wastes as gelling materials, is wide in source and low in cost; flow performance is good, so that bleeding and separation are not generated; a mixture is good in cohesiveness, quick in setting and hardening and high in early strength; besides, the geopolymer grouting material has good filling performance, good anti-freezing performance and an anti-freezing level of F300, is suitable for being used in a cold temperature changing environment, and is simple and quick to construct.

The invention relates to the field of building concrete, and particularly relates to iron tailing sand concrete and a preparation method thereof. The concrete is prepared from the following raw materials in parts by weight: 20 to 40 parts of tailing ball, 10 to 20 parts of tailing powder, 5 to 15 parts of cement and 2 to 6 parts of water, wherein the tailing ball is prepared from the following rawmaterials in parts by weight: 8 to 12 parts of cement, 36 to 48 parts of tailing powder, 17.6 to 24 parts of water, 1.6 to 2.4 parts of water reducing agent and 0.24 to 0.36 part of rubber powder. The preparation method comprises the steps of preparation of the tailing ball and preparation of the concrete. The iron tailing sand concrete and the preparation method thereof are provided; the concrete is high in strength and meets the requirement of concrete for a building; meanwhile, the concrete utilizes the iron tailing sand as the raw material; the waste is utilized anew; the pollution of tailing to an environment is reduced; the preparation method is simple; the obtained concrete is high in strength; the tailing ball is used as an aggregate; further, the strength of the obtained concreteis higher than the strength of the aggregate; the concrete is researched from a microscopic angle, and the practicability is high.

The invention discloses a general modified epoxy antirust paint with high performances and high solids and a preparation method thereof. The paint comprises a component A and a component B, wherein the component A comprises 10-20 parts of an E44 epoxy resin, 10-20 parts of an NPPN-631 epoxy resin, 5-15 parts of a terpene resin, 4-18 parts of a cumarone resin, 0.1-1.0 parts of a BYK antifoaming agent, 0.1-1.0 part of an HX leveling agent, 0.1-1.5 parts of a rheological assistant, 5-20 parts of active silica, 10-20 parts of a mixed solvent and 10-30 parts of a pigment-filler; and the component B comprises 10-40 parts of cardanol modified amine and 0.5-3 parts of a modified silane coupling agent. The antirust paint of the invention has the advantages of compact coating, low viscosity, good compatibility and fast curing of a curing agent, high tough strength and strong adhesion of the coating, coating number reduction during the thick slurry curing, construction efficiency improvement, construction cost reduction, and anticorrosion life prolongation.

The invention discloses super early-strength mortar. The key point of the technical scheme is that the super early-strength mortar is prepared from the following components in percentage by weight: 40-50% of an inorganic bond material, 1-3% of an enhancer, 45-55% of aggregates, 0.3-1.5% of an early-strength agent, 0.05-0.4% of a retarder, 0.1-0.5% of a water reducer and 0.03-0.15% of anti-cracking fibers. The invention provides the super early-strength mortar which does not bleed or shrink and is high in liquidity; in addition, the 1h compressive strength can reach 30MPa and the long-term strength is not decreased.

An ink jet printing method includes attaching an ink composition to a cloth by using a printer head which has a nozzle discharging the ink composition, a pressure chamber for imparting pressure to the ink composition to cause the nozzle to discharge the ink composition, and a connection portion connecting the pressure chamber and the nozzle, and in which a distance of the connection portion is 500 μm or more, the distance of the connection portion being from a portion of the pressure chamber where the ink flows out from a pressure chamber to the nozzle side to the nozzle, in which the ink composition includes the resin as a solid content in the amount of 10% by mass to 26% by mass with respect to the ink composition, the ratio of the total content of the organic solvent to the total content of the solid content of the resin is 0.3 or more, and a sum of the total content of the solid content of the resin and the total content of the organic solvent is 37% by mass or less with respect to the ink composition.

The invention discloses a method for vacuum pouring concrete in steel pipes, which comprises the following steps: ① preparing steel pipe concrete: adding 0.8%-1.5% by weight water reducer and appropriate amount of expansion agent or anti-shrinkage agent to the concrete, and controlling the water reducer The amount of air-entrained air is less than 2.2% by volume, and fly ash is mixed with 10%-20% by weight; ②In the vacuum perfusion system, the vacuum pressure inside the steel pipe is under the vacuum negative pressure condition of -0.1MPa~-0.09MPa , Use a concrete pump to inject concrete into the steel pipe; ③ Continuously pour concrete into the steel pipe: When the steel pipe is filled with cement slurry and the concrete flows out of the slurry outlet, the construction of pouring concrete is completed. The steel pipe concrete prepared by the invention can effectively reduce the number of air bubbles attached to the pipe wall, improve the compactness of the concrete in the steel pipe, and is beneficial to exert the mechanical properties of the steel pipe concrete structure.

A cement mortar composition for grouts which retains satisfactory flowability, is free from bleeding and material separation, has an anti-cracking ability due to high strength, high durability, and reduction in dry shrinkage, and is for use in applications such as foundations for machines; and a grout mortar obtained from the composition. The cement mortar composition for grouts comprises a binder, a setting retarder, a water-reducing agent, and a fine aggregate. It is characterized in that the binder comprises a quick hardening material comprising a cement, calcium aluminosilicate glass, and plaster and a fine pozzolan powder, the water-reducing agent comprises at least a polycarboxylate-type water-reducing agent, and the fine aggregate is a heavy aggregate having a density of 3.0 g / cm<3> or higher. The grout mortar is obtained by kneading the cement mortar composition together with water.