1111results about How to "Reduce chroma" patented technology

Chroma is increased, color-to-color bleed is reduced, and edge acuity is increase for dye-based inks by an underprinting technique. A dye-based ink-jet ink printing system is provided, comprising cyan, yellow, and magenta inks, each ink contained in a separate ink pen. Each ink contains at least one water-soluble dye and vesicles. The vesicles are present in an amount sufficient to contain a substantial fraction of dye molecules within the water pool of the vesicles. The vesicles formed from a surfactant having a first polarity. The printing system further comprises an additional pen containing a fixer having a second polarity, opposite to the first polarity. Further, an ink-jet printer that includes the dye-based ink-jet ink printing system is configured to print the fixer on a print medium, followed by printing at least one ink on the fixer. A method for improving chroma, color-to-color bleed, and edge acuity in a dye-based ink-jet ink. The method comprises: (a) providing the above ink set; (b) providing an additional pen containing a fixer having a second polarity, opposite to the first polarity; (c) printing the fixer on a print medium; and (d) printing at least one ink on the fixer.

The invention relates to a recycling treatment process for coal coking high-salinity wastewater. The process comprises the following steps: (1) fluorine removing; (2) silicon removing; (3) softening;(4) treatment with a multi-medium filter; (5) ultrafiltration; (6) resin softening; (7) FDG; (8) nanofiltration and salt separation; (9) reverse osmosis concentration; (10) advanced oxidation; (11) resin adsorption; and (12) evaporative crystallization. The process has the advantages that the process of pretreatment, nanofiltration salt separation, reverse osmosis concentration, advanced oxidationand evaporative crystallization is adopted, so that zero emission and quality-divided resource utilization of the coal coking high-salinity wastewater are realized.

The invention discloses a deep treatment technique used for the printing and dyeing sewage recovery. The technique consists of a BAF pond, an air-bearing system, an ozone contact oxidation tower, a filter, an active carbon filter, an ozone generator and a medicine adding system. The technique is the improvement of the traditional BAF technique, removes the resolvable organism in the sewage through the biological degradation, outtakes the water into the air-bearing system and combines the flocculation medicine adding technique, so as to eliminate the non-solvent organism and colloidal substance in the sewage. The outtaken water enters into the ozone contact oxidation tower and gets mixed with ozone, so that the organism which is difficult to undergo the biological degradation in the printing and dyeing sewage is removed with the help of the strong oxidizing property of the ozone. The water flowing out of the ozone contact oxidation tower enters into the pond at the middle, and 30 percent of the water returns to a gas dissolving can under the action of a pressurizing pump, gets mixed with the pressurized air and then enters into the air-bearing system through utilizing the remaining pressure. The gas-water solution is dispersed into the small and equable drips through a dissolved gas releaser, and the drips drive the suspending substances and the colloidal substance to float up to the water surface so as to achieve the removal. The water coming out of the middle pond enters into the filter to remove the small suspending substances and enters into the ozone/active carbon filtering system so that the reaction of the ozone basic chain is caused under the action of the active carbon, thereby speeding up the decomposition of the ozone into OH and other free radicals, degrades a small amount of organism, eliminates the color and finally ensures that the outtaken water reaches the recovery standard of the printing and dyeing sewage.

The invention relates to a comprehensive treatment method for garbage leachate. The comprehensive treatment method for the garbage leachate comprises the following steps: (1) performing foam separation pretreatment; (2) performing coagulation sedimentation pretreatment; (3) performing microfiltration and ultrafiltration treatment; (4) performing gaseous film separation treatment; and (5) performing biochemical treatment. The garbage leachate is subjected to coagulation sedimentation and foam separation pretreatment, so that most of metal ions, floating oil, surfactants and part of organic matters are removed from the garbage leachate and the chemical oxygen demand (COD) and the chromaticity of the garbage leachate are reduced; suspended matters, macromolecular matters and the like are removed from the leachate through the microfiltration and ultrafiltration after pretreatment, so the liquid is clear, the gaseous film is difficult to block and pollute, and long-term operating stabilityof the gaseous film in the subsequence process is guaranteed; and ammonia nitrogen is efficiently removed from the leachate in the gaseous film stabilizing process and the ammonia nitrogen removal rate can be adjusted as required, so that the waste water has the best nitrogen carbon ratio and the successful operation of the subsequence biochemical system is guaranteed.

The invention discloses efficient heterogeneous catalytic oxidation ferric-carbon micro-electrolysis packing and a preparation method thereof. The packing is prepared from the following raw materials in parts by weight: 45-65 parts of pure iron powder, 10-25 parts of cast iron powder, 2-8 parts of graphite powder, 5-15 parts of active carbon powder, 2-10 parts of copper powder, 2-10 parts of manganese powder, 2-10 parts of aluminum powder, 2-10 parts of fine wood bits, 1-6 parts of sodium silicate, 1-6 parts of sodium borate, 2-6 parts of pyrite dust and 5-15 parts of an adhesive. The efficient heterogeneous catalytic oxidation ferric-carbon micro-electrolysis packing disclosed by the invention is prepared by taking heterogeneous metal alloy with high potential difference as a catalyst and using a high-temperature micropore roasting technology and has the characteristics of heterogeneous metal and ferric-carbon integration, micropore framework type alloy structure, large specific surface area, low density, strong activity, high current density and the like; organic wastewater is treated so that COD, ammonia nitrogen and total phosphorus can be efficiently removed, the chroma can be reduced, the biodegradability can be improved, the treatment effect is extremely stable, and the phenomena of packing passivating, hardening and the like caused in the operation process can be avoided.

The invention relates to a pharmaceutical wastewater technology using microelectrolysis-Feton-EGSB (expanded granulate sludge bed)-A/O (anaerobic/aerobic)-BCO (biological contact oxidization)-BAF (biological aeration filtration)-coagulation treatment. High-concentration pharmaceutical wastewater is sequentially sent into an oil separation tank, a conditioning tank, a microelectrolysis reaction tank, a Feton catalytic oxidation tower, a horizontal flow type primary settling tank, a comprehensive conditioning tank, a hydrolysis acidifying tank, the EGSB, an A/O tank, a two-stage BCO tank, a secondary settling tank, a BAF tank, a coagulation tank, an air floating tank and a final settling tank to be treated, and then is drained after the standard is reached. The technology has the advantages that the technique is matured, the treatment effect is stable, and the anti-impact ability is strong; after the pharmaceutical wastewater is treated by the combined technology, the quality of drained water can reach the class-one standard of Comprehensive Drainage Standard of Wastewater (GB8978-1996).

The invention relates to a cooperative pretreatment method for biological catalysis and controlled oxidation of cotton and cotton-type fabrics, comprising the following steps: (1) preparing a biological compound enzyme preparation, a biological enzyme synergist and a non-ionic surfactant into an enzyme working solution, wherein the pH of a processing bath is 6-7.5; padding the fabrics into the working solution; carrying out heat preservation; (2) washing the processed fabrics with cold water; padding the fabrics into a hydrogen peroxide bleaching solution containing the controlled decomposition additive of hydrogen peroxide; and steaming, washing with water and drying to obtain the finished products. In the method, high-density strong base is not required to serve as a scouring agent, thepH value of pretreatment waste water is 7-8, the chromaticity is low, the COD (Chemical Oxygen Demand) value is lowered by 30% compared with that of the traditional alkali kiering pretreatment technology, the water is saved by 10-30%, and the steam and electricity can be saved by 20%. The indexes (whiteness, capillary effect, water absorption, cotton seed hull strainaway rate, desizing rate, strong force and the like) of the processed cotton and cotton-type fabric all reach the quality indexes of a semi-product, cotton seed hulls can be completely removed, and the fabrics have vivid color andgood levelling property after being dyed.

The invention provides a wastewater treatment and reuse method for a paper mill. The method comprises the following steps: (a) physical treatment: providing wastewater from the paper mill, and removing the cellulose and other foreign impurities in the wastewater from the paper mill to obtain the wastewater from the paper mill after the physical treatment; (b) biochemical treatment: performing biochemical treatment and deposition to the paper mill wastewater obtained in the step (a) after the physical treatment to obtain safe pool water conforming to the required emission standard; and (c) advanced treatment: providing air-floatation water after super-efficient shallow air-floating treatment in a machine room and merging the air-floatation water with the safe pool water obtained in the step (b) to obtain intermediate water, and then performing intermediate water advanced treatment, i.e. adding drugs into the intermediate water, coagulating, depositing and filtering to obtain purified water; and performing fiber bunch or the biological film technical treatment to the purified water to obtain effluent.

The present invention relates to controlling contrast in at least part of a picture. The contrast control is performed by reducing the saturation (2–4) of the picture during contrast increase (1).

The apparatus according to the present invention includes a level adjusting circuit that increases a gain of a G (or B) signal output from a color conversion circuit, a binarization circuit that forms a binarized image from this G signal and an edge detection circuit that extracts blood vessel position signals through edge detection based on this binarized signal. Then, the apparatus extracts RGB color signals making up a blood vessel image by using the above-described blood vessel position signals, increases the gains of these blood vessel color signals and then adds the blood vessel color signals to the color signals of an original image. This allows blood vessels to be displayed in high contrast to mucous membranes, etc. Furthermore, the apparatus can also amplify the R signal and B signal by using a signal obtained by differentiating the above-described G signal as a gain signal to highlight blood vessels.

The invention relate to a quaternary ammonium salt positive ion-type organic polymeric flocculant and a preparation method thereof. The polymeric flocculant contains a quaternary ammonium group, the positive ion degree is between 40% and 50%, and the raw material of the flocculant comprises the following components in parts by mass: 5-50 parts of dimethylamine, 1-45 parts of urea, 20-60 parts of epichlorohydrin, 1-40 parts of water, 1-5 parts of catalyst and 2-8 parts of cross-linking agent. In the invention, the product is less in dosage, is obvious in waste water-treating effect, and is especially suitable for treating slurry-preparing and paper-making paper waste water, printing and dyeing waste water and organic waste water containing active groups; and the preparation method is simple, the process conditions are mild, the preparation method is carried out by adopting a conventional device under the ordinary pressure, and no three wastes are discharged.

The invention belongs to a method for preparing pentaerythritol trimethylacrylate, comprising the steps as follows: (1) pentaerythritol, acrylic acid, catalyst, solvent and polymerization inhibitor are put into a reaction kettle to be fully mixed and stirred so as to form a miscible liquid; (2) a steam valve of the reaction kettle is opened to slowly heat the miscible liquid, and the temperature is controlled and maintained at 70-90 DEG C for a 20-40min reaction; (3) the mixture is continued to be heated, when the temperature is increased to 80-115 DEG C, reflow is carried out for 3-5h and then the reaction is finished; (4) soda water solution and sodium chloride water solution are added into the mixture and after washing the upper organic phase is extracted; (5) the upper organic phase is separated from the solvent; (6) and filter pressing is carried out to obtain the end product. The method has simple process, good quality, activity and flexibility, low shrinking percentage and color intensity and high yield coefficient, and produces few by-products or little waste water.

The invention discloses a dephosphorization flocculating agent and a preparation method thereof. The dephosphorization flocculating agent is formed by compounding an inorganic flocculating agent and an organic flocculating agent. The raw materials of the inorganic flocculating agent comprise sodium ferrate, borax, ferrous sulfate, silicate or aluminate; the raw materials of the organic flocculating agent comprise modified chitosan or modified polyacrylamide. The preparation process comprises the following steps: firstly adding a non-oxidizing acid into the silicate or aluminate to obtain a polysilicate colloid or an aluminum hydroxide colloid, then adding a borax solution and a sodium ferrate solution sequentially while stirring, further dropping a ferrous sulfate solution, mixing to form the inorganic flocculating agent, standing, then adding the modified polyacrylamide or modified chitosan into the inorganic flocculating agent, curing and adding the acid till the pH value is less than 7 to obtain the finished dephosphorization flocculating agent. The flocculating agent is suitable for a wide range of water quality, is little affected by co-existing salts, the pH value of sewage and temperature and is particularly effective for dye wastewater, oilfield sewage and the like.

The invention relates to a coking wastewater treatment device which comprises a flocculation reaction tank, wherein the flocculation reaction tank is connected with a flocculation settling pond, the flocculation settling tank is connected with a sand filter, and the sand filter is connected with an active carbon filter. A coking wastewater posttreatment method comprises the steps of: adding an efficient composite flocculating agent, a polymer coagulant aid and a mineral powder absorbing agent into the coking wastewater subjected to common treatment; regulating the pH value to be 8-9 with alkali, wherein the flocculation reaction settling time is 1-2.5h; and then carrying out sand leaching and active carbon filtration, wherein the effluent quality fully reaches the standard for emission or recycling. The COD (Chemical Oxygen Demand), the total phenol, the ammonia nitrogen, SS (Suspended Substances) and the chromaticity in the coking wastewater subjected to the treatment with the method are respectively reduced by above 80 percent, 90 percent, 60 percent, 90 percent and 95 percent; and by treating the coking wastewater according to the invention, the purposes of good effect, simple operation and convenience in management are achieved.

The present invention relates to a method for producing chemical fibre pulp by using plant fibre as raw material. Said method includes the following several steps: raw material treatment, making the treated raw material undergo the processes of rubbing and extruding, cooking, washing, removing sand and bleaching treatment. It is characterized by that in the preparation process of said chemical fibre pulp a screw extruding machine and a rubbing-extruding machine are adopted.