957 results about "Textile dyeing" patented technology

The invention discloses a textile dyeing wastewater advanced treatment recycling technology. The technology comprises the following steps: filtering to remove textile fibers; cooling; neutralizing, degrading organic matters and decomposing, replacing or degrading (cracking) the chormophoric groups of the organic matters to reduce the chroma of the wastewater; performing biochemical treatment with the biomembrane; precipitating to ensure that the precipitated sludge enters a sludge treatment system and the supernatant enters a flocculation pool; performing chemical treatment, namely adding a medicament in the flocculation pool to remove the suspended matter (SS), CODcr (chemical oxygen demand), BOD (biochemical oxygen demand) and chroma of the water; performing secondary precipitation to ensure that the free SS is precipitated and the wastewater is decolored further; separating to remove and degrade the chloride ions of the reuse water; performing secondary biochemical treatment to further reduce the concentrations of the SS, CODcr and BOD in wastewater; performing ozone oxidation treatment, decoloring, degrading organic matters; performing chemical treatment to remove insoluble dye materials and SS and reduce the COD and chroma; and performing secondary filtration, and forming an ozone/activated carbon system to ensure that the hydroxyl radicals of activated carbon are used and the organic reaction in wastewater is adopted to decolor and degrade organic matters. The invention overcomes the defects of the existing physical method, chemical method and chemical method treatment technologies; and the technology has been used in many enterprises, and the good treatment effects are obtained.

The invention relates to a textile dyeing and printing technique and specifically relates to a dyeing and coating integrated dye dyeing and printing paste-shaped compound for a hydrophobic textile material and an application thereof. The dye dyeing and printing paste-shaped compound is composed of 1-25% of dyeing and printing concentrated paste, 0.5-10% of thickening agents, 0.05-3% of pH modifiers and 62-98.45% of water. The paste-shaped compound provided by the invention is used for dyeing and printing the hydrophobic textile material and has the advantages of dye dyeing and printing and pigment dyeing and printing; the high sublimation, washing and dry and humid rubbing fastness are ensured while the color is bright and the hand feeling is soft; the generation of high concentration waste water in the traditional disperse dyeing and printing processes is avoided; and therefore, the dyeing and coating integrated dye dyeing and printing paste-shaped compound is a clean and environment-friendly dye dyeing and printing product.

The invention provides a method for preparing a cellulose nanocrystal/electrostatic spinning nanofiber filter film. The method is characterized in that the prepared cellulose nanocrystals of which the diameter is 3 to 10nm are coated on the surface of an electrostatic spinning nanofiber film to form a network structure so as to filter out impurities in raw water, intercept suspended solids, colloid, bacteria and the like in the water and effectively adsorb residual chlorine and heavy metal in the water; and therefore, the aim of purifying water quality can be fulfilled. Moreover, due to the adoption of a multi-layer compounded mode, the mechanical strength of the nano fiber film can be improved by the cellulose nanocrystals, so that the filter film has the advantages of simple structure, high mechanical strength, good filtering effect, low cost and the like, and has wide application prospect in the fields of drinking water purification, textile dyeing wastewater treatment, polyvinyl acetate (PVA) slurry recycling and the like.

The invention relates to a method for dyeing textile materials and products thereof, and belongs to the field of textile printing and dyeing processing. In the method, prepared dye solution is subjected to ultrasonic atomization to form dye solution microbeads, and the dye solution microbeads directionally infiltrate the textile under the action of certain pressure and an electric field so as to complete the dyeing process. Due to the adoption of the technical scheme, dye solution atomized microbeads prepared from the dye solution through a high-frequency ultrasonic atomizer have smaller grain size, a small dispersion range on the textile and more fine and smooth dyeing effect; the dye solution atomized microbeads enter fibers more easily under the action of the air pressure and the electric field, and have better dyeing effect; and the atomized microbeads carry less solution, the utilization rate of the dye is high, water can be saved and the environmental pollution is lightened. The dyeing method has a wide application range, low energy consumption and light pollution, and is suitable for small-batch and multi-variety printing technology development direction.

The invention relates to a method for dyeing textile by dye liquor prepared by mutually dissolving organic solvent and water and belongs to the technical field of textile printing and dyeing processing. The dye liquor applies organic solvent soluble in water and lower than water in boiling point, and dye is soluble in water and insoluble in organic solvent, so that effective liquor ratio is lowered, distribution coefficient of dye on fiber is changed, and dye uptake is of dye is increased. Adding the organic solvent allows boiling point of the dye liquor to reduce, energy is saved, water consumption in dyeing process is greatly reduced, the organic solvent can be recycled and reused, and discharge of waste liquor is reduced. The dyeing process includes performing twice-soaking and twice-rolling accelerant solution to textile, and solid accelerant is prevented from being precipitated out at a great amount by being added in dyeing process. The method is low in water consumption, utilization rate of dye is increased, energy consumption is low, the organic solvent can be recycled and reused, and cleaning and dyeing are achieved simultaneously.

The invention relates to cationoid aquosity dye color paste preparing method. It includes the following steps: using polymer with active group to modify dye surface, then cationic grafting. It can be used to prepare various cationoid aquosity dye color pastes. And the produced cationoid aquosity dye color paste has the advantages of good dispersion stability, quality stability, wide application prospect in ink jet printing, advertising, textile dyeing, and stain for wood fields etc.

The invention discloses a non-aqueous media dye-fixation method suitable for reactive dye and belongs to the field of textile dyeing and finishing technologies. The dyeing method comprises the following steps: (1) applying a reactive dye solution onto textile; (2) carrying out dye fixation on the textile in anon-aqueous media after the application of the reactive dye solution; and (3) soaping, washing and drying the textile after dye fixation so as to obtain a dyeing finished product. As there is no need to add inorganic salt or other dyeing additives by the method, water for dyeing and dyeingwastewater are greatly reduced, and dye fixation rate is raised. After dye fixation, the non-aqueous media is easy to purify and recycle, thus truly realizing ecological dyeing of reactive dyes. Thedefect that traditional reactive dye dyeing wastewater is much and hard to process and dye fixation rate is low is changed.

The invention discloses a textile dyeing device, comprising a box body, a dye box is fixedly installed at the left end of the bottom of the inner cavity of the box, and a first drive roller is movably installed at the upper left end of the inner cavity of the dye box. The lower end of the cavity is movably installed with a second transmission roller, the upper right end of the inner cavity of the dye box is movably installed with a third transmission roller, the right end of the upper surface of the dye box is provided with a second through hole, and the right end of the bottom of the inner cavity of the dye box is provided with a second through hole. A pressure sensor is fixedly installed. In the invention, the scraper is movably connected to the inner cavity of the second sleeve through the second spring, which can scrape off the dye adhering to the surface of the dyed fabric after dyeing. The fabric is air-dried, which solves the problem that a large amount of dye will adhere to the surface of the fabric during the dyeing process of the existing fabric dyeing machine, which not only prolongs the drying time of the fabric after dyeing, but also causes the waste of dye.

The process of dyeing woven polylactic acid fiber/cotton blended fabric belongs to the field of textile dyeing technology. The process of dyeing woven polylactic acid fiber/cotton blended fabric has China produced disperse dye and assistant adopted and improved steps of desizing, boiling and rinsing, mercerizing and dyeing. The dyed product has bright colors, proper shade and high color fastness. The present invention is suitable for industrial production.

The invention discloses a comprehensive treatment method of H acid production wastewater. The method comprises the following steps: regulating the pH value of the H acid production wastewater, afterwards complexing and extracting a naphthalene sulfonic acid type substance in the wastewater, back-extracting an extract phase by using alkaline liquor, recycling an extracting agent after the extracting agent is regenerated, evaporating and concentrating back-extraction liquid to synthesize a liquid dispersant product; transferring a raffinate phase into an evaporation system, evaporating and separating to obtain a sodium sulfate byproduct, and discharging the desalted evaporation and condensation water after the water reaches the standards by means of biochemical or oxidization flocculation treatment. According to the method disclosed by the invention, the naphthalene sulfonic acid type substance in the wastewater is recycled by utilizing a complexation-extraction method, and the sodium sulfate salt product is recycled by utilizing an evaporation method. The liquid dispersant product (degree of polymerization is 1-3) synthesized by utilizing the recycled naphthalene sulfonate solution is used as a dispersing agent in textile dyeing and leather industries. The method disclosed by the invention is reasonable in process design and can be used for effectively realizing comprehensive treatment and resource utilization of the H acid production wastewater.

The invention relates to a method of environment-protective low-temperature scouring and bleaching used for textile dyeing and finishing, comprising the following steps: a dyeing and finishing solution which consists of low-temperature scouring and bleaching promoter composition, 25-30% of hydrogen peroxide and caustic soda, with the mass percentage of 2:8-12:2.5-3 is prepared; subsequently, the dyeing and finishing solution is used for processing cotton knitted fabric with the bath proportion of 1:8-15, the temperature of 75-80 DEG C and the time of 40-60s. The method carries out scouring and bleaching one bath processing at the temperature of 75-80 DEG C, with the scouring and bleaching effect achieving the whiteness and capillary effect standard of the traditional high-temperature alkali-oxygen one bath process at the temperature of 98-100 DEG C or even 130 DEG C; furthermore, the cost is low, the processing time is saved, and the possibility of wrinkle of cotton and cotton blended fabric (such as blended polyurethane and cotton) is reduced.

This invention provides a method for manufacturing a high-efficiency environment-friendly soaping agent composition for cleaning printed fabrics. The soaping agent composition is manufactured by mixing and adequately stirring C12 fatty alcohol polyoxyethylene ether, coconut diethanolamide, sodium secondary alkane sulfonate (SAS), dyeing-proof salt (S), sodium tripolyphosphate and water. The soaping agent composition has good soaping and anti-contaminating effects on printed fabrics, and can improve the strength of printed fabrics.

The present invention relates to one kind of antiseptic active cationic dye and its preparation process. The dye has matrix in anthraquinone structure, active group of sym-triazine monochloride or sym-triazine monofluoride, water soluble group of long carbon chain quaternary ammonium salt structure and the chemical structure as shown. The dye may be used in dyeing and antiseptic finishing of various kinds of fiber and has high antiseptic effect, high color fastness and lasting antiseptic performance. It is prepared through the following steps: dissolving anthraquinone A and sym-triazine trichloride or sym-triazine trifluoride in nitrobenzene solvent, heating, cooling and filtering to obtain intermediate B; dissolving the intermediate B in DMF solvent, adding tertiary amine, heating to react, evaporating DMF and vacuum drying to obtain intermediate D; dissolving the intermediate D in DMF solvent, adding alkyl halide, heating to react, washing with ethyl ether, re-crystallizing and drying.

The invention discloses a silicon based non-aqueous medium dyeing method suitable for cheese, and belongs to the technical field of textile dyeing and finishing. The dyeing method comprises the following steps: (1) preparing a dye solution; (2) dyeing cheese: soaking cheese in a silicon based non-aqueous medium, and adding the dye solution to carry out dyeing in a cheese dyeing facility; and (3) after dyeing, carrying out dehydration, soap washing, water washing, and drying to obtain a finished product. The method has the advantages that only a little amount of water and alkali is needed, other dyeing aids are not needed; the water for dyeing and dyeing wastewater are largely reduced, and dye uptake and fixation rate of cheese dyeing are improved effectively. After dyeing, the silicon based non-aqueous medium can be separated from water and is capable of being used repeatedly. The ecological dyeing of cheese is realized. The shortages of conventional water bath cheese dyeing such as much wastewater, difficulty in wastewater treatment, low dye uptake and fixation rate, and the like, are overcome.

The invention relates to a method for fluorescent staining of orlon, which belongs to the field of dye synthesis and textile dyeing. Stilbazole salt is taken as a cation fluorescent dye, 0.2 and 2.5 percent owf fluorescent dye, 0.5g/L Peregal 0, a 1.0 percent owf leveling agent and 4g/L glauber salt are mixed to prepare a dye solution, acetic acid and a sodium acetate buffer solution are used to adjust the pH value of the dye solution to 5, and the dyeing processing with the dyeing bath ratio of 100 to 1 is performed to obtain a fluorescent orlon fabric. The stilbazole salt provided by the method has simple synthesis reaction, has relative flexibility in molecular design and assembly, and also has good linear optical performance and non-linear optical performance; and under specific dye bath concentration, the dyed orlon fabric satisfies the coordinate range of orange color stipulated in European EN471 standard High-visibility Warning Clothing for Professional Use-Test Methods (2003).

The invention relates to an assistant agent used for dyeing and printing a textile, particularly a cleaning agent used for preventing a contaminant during the soaping process after the textile is dyed and printed, and belongs to the textile dyeing technology field. The assistant agent comprises the following components by mass percentage: 2% to 15% of N-vinyl pyrrolidone/ acrylamide/ vinyl alcohol terpolymer, 2% to 15% of maleic acid/ acrylic copolymer, 0 to 10% of sodium polyacrylate, 2% to 15% of aliphatic amine polyethenoxy ether, 2% to 15% of fatty alcohol polyoxyethylene ether, and water in balancing amount. The assistant agent has the advantages that: the components meet the standard of ecological textiles and the environmental protection requirements, the assistant agent has a certain cationic nature, thus having good affinity for the anionic dye used for conventional dyeing and printing, is conducive to washing and removing the dye which is attached to the textile, and meanwhile, has protective colloidal properties, thus allowing the removed dye to be stably existing in a washing solution, so as to prevent second contamination.

The invention provides a dye waste water treatment system which sequentially comprises a physico-chemical pretreatment system, an anaerobic tank, an aerobic tank and an advanced oxidation treatment system; dye waste water to be treated firstly enters into the physico-chemical pretreatment system to remove part chromaticity, sulphate and COD in the dye waste water, so as to ensure the pH, the alkalinity and the proper sulfate concentration which are needed by high-efficiency and stable running of later stage of anaerobic technique; after that, the dye waste water enters into the anaerobic tankto have anaerobic reaction and then enters the aerobic tank to have aerobic reaction; finally, the dye waste water enters into the advanced oxidation treatment system to remove the residual chromaticity and organic matter hard to degraded in the aerobic effluent as well as intermediate metabolite generated in the process of biological treatment. When being used for treating the dye waste water, especially the waste water having high salinity, sulfate, chromaticity and COD as well as higher concentration organic matter hard to degraded, the combined system has good treating effect and ensures the finally yielding water to reach the first-grade standard in GB4287-92 pollutant emission standards for textile dyeing and finishing industry.

The invention belongs to the field of textile dyeing, and particularly relates to a fabric pressing mechanism and method. The mechanism comprises two symmetrically arranged supporting devices, two symmetrically arranged sliding devices, and a transmission shaft driving the two sliding devices, wherein the sliding devices are installed on the supporting devices in a sliding mode, cylinders are symmetrically installed on each sliding device, and a press roller is installed between the two sliding devices and can move vertically under the driving of the cylinders. The fabric pressing mechanism is realized mainly by means of the fabric pressing method that the press roller is suspended firstly; fabric is made to pass through the press roller, and cylinder buttons are pressed down manually to press down the press roller; a printing switch is pressed down, and the fabric is fed through the sliding devices at a speed same as the speed of a guiding belt; the guiding belt is stopped, printing is conducted through a spray head, and meanwhile, the press roller moves backwards at a constant speed to press the fabric. The fabric pressing mechanism and method are intelligent, efficient, and capable of preventing creases from appearing on the fabric to affect the fabric dyeing effect.

The present invention is one kind of botanic dye and its production process and use. The botanic dye is prepared with plant material containing pigment, and through steaming, filtering the steamed liquid to obtain filtrate, adding lime water into the filtrate, stilling to make the liquid laminate into different layers of different colors, and taking the liquid of different layers as different dyes. The present invention utilizes plant material and has no pollution, simple technological process and low cost. The present invention obtains dyes of different shades with the same plant material to enrich color spectrum, and the botanic dye may be used widely in dyeing textile.

The invention discloses a method for dyeing silk broadcloth by using the pollen of lily as a natural dye and belongs to the technical field of textile dyeing and finishing. The method comprises the following steps of: soaking fresh or dried dark-red lily pistil, heating and performing suction-filtration to obtain a dye solution; adding silk broadcloth fabric which is refined, and dyeing the silk broadcloth fabric; and adding different mordants for mordanting and thus obtaining silk fabric with different colors. The method has the advantages of low cost, simple process, high performance, high additional value, non-allergic and non-carcinogenic to skin, and the like; raw materials are inexpensive, easy to get, and reproducible; and taking of dyeing products is safe. Particularly, by taking plant ash as a mordant, pollution is avoided. The method is environment-friendly and energy-saving, and clothes which are made of fabric dyed by using the method are natural, environment-friendly and nonirritating to the skin.

The invention provides printing and dyeing equipment. The printing and dyeing equipment comprises a dyeing box, a dewatering and drying mechanism and a printing machine which are arranged from left toright sequentially. The dewatering and drying mechanism comprises a dewatering mechanism, a water absorbing mechanism, an ironing mechanism and a drying machine which are arranged from left to rightsequentially. The dewatering mechanism comprises a guide rail frame. A water pressing roller is mounted in a groove of the guide rail frame movably through a wheel. An air cylinder is arranged on theright side of the guide rail frame. A piston rod of the air cylinder is connected with the water pressing roller. The water absorbing mechanism comprises a water pressing plate and a water absorbing roller. The printing and dyeing equipment has the advantages that centrifugal dewatering is not needed after textile dyeing through the dewatering and drying mechanism, so that flattening degree of textiles is guaranteed, and flattening on a scutcher is not needed; the dyeing equipment, the dewatering and drying equipment and the printing equipment are combined, so that equipment replacement time during working is reduced, dyeing and printing can be completed on one equipment, and working efficiency is improved.

The invention discloses a textile dyeing machine which comprises a cylindrical dye vat, the cylindrical dye vat is internally provided with a rotary drum coaxial with the dye vat, blades are uniformly distributed on the rotary drum, and a group of press rolls arranged above one another is arranged above the cylindrical dye vat. The textile dyeing machine is also provided with a dye solution circulating pipe, one end of the dye solution circulating pipe is communicated with the bottom of the dye vat, the other end of the dye solution circulating pipe is communicated with a sprayer above the dye vat, and a heater and a circulating pump are arranged on the dye solution circulating pipe. The raffinate containing rate after each time of liquid discharge is reduced by the press rolls, so as to improve the washing efficiency, and greatly reduce the use amount of water, electricity and steam. A loose processing manner is adopted for the textile dyeing machine so as to adapt to all textiles and non-woven fabrics; and in operation, no mechanical friction exists between the fabric and the equipment, the fabric is free from rapid impact of the dye solution, and the fabric surface is lint-free.