683results about How to "Improve dyeing efficiency" patented technology

The invention discloses an environment-friendly terylen low-temperature dyeing auxiliary agent taking alkyl phthalimide as a carrier and a preparation method thereof. The compositions in percentage by weight of the dyeing auxiliary agent are: 70 to 90 percent of alkyl phthalimide compound, 8 to 15 percent of concentrated emulsion 8206, 1 to 7.5 percent of castor oil polyoxyethylene ether sulphonated matter and 1 to 7.5 percent of alkyl phenol polyoxyethylene ether, wherein the alkyl phthalimide is takes as the carrier; and the concentrated emulsion 8206, the castor oil polyoxyethylene ether sulphonated matter and the alkyl phenol polyoxyethylene ether are takes as an emulsifying agent. The environment-friendly terylen low-temperature dyeing auxiliary agent is used in low-temperature dyeing of terylen and terylen-containing textile fabrics; moreover, the dyeing auxiliary agent not only has the characteristics of nontoxicity, tastelessness, environmental protection and low cost, etc., but also has the advantages of high dye uptake, excellent level dyeing property, high dyeing fastness and wide application range, etc., thereby meeting the requirements of low-temperature dyeing production of terylen-containing textile fabrics.

The invention discloses Chinese iris mat spreading, dyeing and drying integrated equipment comprising a mat spreading device, a dyeing box and a drying box, which are arranged in a straight line, wherein three layers of spaces are arranged up and down in the dyeing box; transfer rollers are arranged on both front and rear sides of each layer of space; dye jetting mechanisms are arranged on the rear sides of the upper-layer space and the middle-layer space of the dyeing box; an inner chamber of the drying box is divided into upper and lower layers by a meshed plate, the lower layer of chamber is a heating chamber and the upper layer of chamber is a drying chamber; and a mat rolling device is arranged on the front side of the drying box for folding and rolling the mat. During operation of the equipment disclosed by the invention, the mat spreading device spreads a semi-finished mat product first, the mat passes through the dye box so that both the front and back surfaces are dyed; the dyed mat is delivered to the drying chamber of the drying box by a mat delivering device, so that the mat is dried, thereby improving the spreading, dyeing and drying efficiency effects.

The invention discloses a nonwoven fabric dyeing device for clothing production in the technical field of nonwoven fabric production. The nonwoven fabric dyeing device comprises a dyeing tank and a drying tank, and the drying tank is fixedly connected to the right side wall of the dyeing tank. Dyeing liquid can be stirred by a stirring mechanism to avoid layered settlement; by arrangement of a heating plate and a component thereof, dyeing liquid temperature can be changed; by arrangement of an end cover and a telescopic mechanism, convenience in mounting of a nonwoven fabric in the dyeing tankis achieved; by arrangement of a protective screen, the problem of fabric loss caused by contact of the nonwoven fabric and the stirring mechanism can be avoided; by the drying tank and dyeing tank integrated structure, fabric dyeing and drying processes are integrated, a fabric dyeing process is simplified, and processing cost is reduced; by arrangement of array cloth rollers, two surfaces of the nonwoven fabric can be dried completely, and drying effects are improved; by arrangement of a filter tank, waste gas generated in dyeing and drying can be purified.

The invention provides a method and device for dyeing by utilizing ultrasonic waves and microwaves. The dyeing device comprises a water storage tank WT001, a dye kettle DT001, a dyeing kettle DT002, a separator ST001, an ultrasonic generator SW001-1, an ultrasonic generator SW001-2, an ultrasonic transducer SW001, an ultrasonic transducer SW002 and a microwave generator MW001. The dyeing method comprises the steps of: preparing dye liquor under the action of ultrasonic waves, dyeing fabric under the action of ultrasonic waves and microwaves, treating the dye liquor after dyeing, and recycling the recovered water and dye. The method and device for dyeing has the following benefits: the dyeing efficiency and the dyeing effect are effectively improved without using assistants, and the dye can be recycled; and simultaneously, the dyeing device has simple structure, is convenient to control, reduces energy consumption and saves water resources.

The invention relates to a multifunctional fully-automatic Gram staining instrument. The instrument comprises a glass slide lateral movement device, a microbe automatic staining device, a glass slide entering and departing device, a push rod device and a liquid path control device, the push rod device pushes a coated glass slide positioned on the glass slide entering and departing device into the glass slide lateral movement device, the glass slide moves with a first glass slide rack on a reciprocating movement mechanism to the automatic staining device, is stained, cleaned and blow-dried, the liquid path control device cooperates a computer program in order to control a staining solution in a Gram staining solution bottle to carry out staining, water spraying, gas spraying, drying and other fully-automatic activities on the coated glass slide according to preset steps and time, and the push rod device moves the processed glass slide into the glass slide entering and departing device in order to carry out subsequent operation. The instrument has the advantages of fully-automatic realization of the whole Gram staining process, accurate delivery, cross infection avoiding, staining solution waste avoiding and manpower resource saving.

The invention discloses an aggregation-induced emission nanoparticle and preparation method and application thereof. The preparation method comprises the following steps: dissolving an aggregation-induced emission compound shown in a formula I and an amphiphilic polymer in a water-soluble organic solvent, then adding the mixture to water, and conducting ultrasonic reaction; removing organic solvents by volatilization to form nanoparticles loaded with the aggregation-induced emission compound; adding cell penetrating peptides in aqueous solution of the nanoparticle, reacting to form aggregation-induced emission nanoparticles capable of efficiently staining cells. The fluorescent particles can be used for tracing long-term differentiation of stem cells, especially the tracing of mouse bone marrow mesenchymal stem cells in the process of osteogenic differentiation. Compared with the commercial tracer reagent in the prior art, which can only trace 6 generations of cell proliferation, the nanoparticle has a better tracing effect, which can trace to more than 12 generations of cell proliferation. The aggregation-induced emission nanoparticle has the advantages of high cell staining efficiency, long-term tracing ability, high light stability and low cell toxicity.

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

The invention discloses a supercritical CO2 waterless dyeing system and a cloth dyeing method thereof. The method comprises the following steps of A, preparing and storing of CO2; B, cooling; C, pressurizing; D, heating, wherein a heating device is utilized for enabling CO2 to form supercritical fluid, and the supercritical fluid is heated to 120-150 DEG C; E, dyeing, wherein a circulating pump pushes a mixture of the supercritical fluid and dye to circularly flow inside a circulation channel, cloths inside a pressure kettle are dyed, the pressure inside the pressure kettle is 28-30 MPA, the temperature is 120-150 DEG C, the circulation flowing time is 20-40 min, and the circulation flow is not smaller than 10 M<3> per hour; F, pressure relieving, wherein a nanoscale color masterbatch is dissolved through the supercritical CO2 fluid, the cloths are dyed, and dyeing technological conditions such as pressure, temperature and time are optimized at the same time so as to improve the dyeing efficiency and dyeing quality.

The invention belongs to the fiber fabric dyeing process, especially relating to a process of wet steaming salt-free dyeing for a cellulose fiber fabric, which has the effects of energy conservation and emission reduction. A method of dyeing fabric with an active dye by means of a proportional pump comprises the following three process steps: (1) a step of mixing a padding dye with a fixing agent; (2) a step of steaming fixation; and (3) a step of water washing. The technical proposal of the process, compared with the traditional pad drying and pad steaming processes, only employs a reducing soaper without a padding machine, so that the dyeing time is shortened and the dyeing efficiency is improved; the wet steaming salt-free process, compared with the batch-type cold pad dyeing process, has the advantages that the time of dyeing padding is shortened and the tinctorial yield is consistent; as the improvement of the fixing alkaline agent overcomes the shortcoming of water glass contamination, the continuity of pad dyeing is realized and the production efficiency is improved.

The invention discloses a two-photon fluorescence probe for detecting peroxynitrite as well as a preparation method and application of the two-photon fluorescence probe. The two-photon fluorescence probe has the structural formula as shown in the description. The two-photon fluorescence probe is named as TPNIR-FP. The two-photon fluorescence probe adopts a Nile red derivative as a fluorescent group and an alpha-keto-amide functional group as an ONOO-reaction group, can rapidly respond to ONOO- (within 10 seconds), and in addition is high in sensitivity and good in selectivity. The two-photon fluorescence probe can be applied to imaging research on ONOO- in antharcycline antibiotic induced cardiac muscle cell and cardiac muscle tissue damage.

The invention discloses a Schoenoplectus trigueter (L.) Palla mat dyeing and drying technology. The Schoenoplectus trigueter (L.) Palla mat dyeing and drying technology comprises the following steps of shaking out a Schoenoplectus trigueter (L.) Palla mat semi-finished product bundle by a mat shaking device, putting the spread Schoenoplectus trigueter (L.) Palla mat on a base plate, feeding the Schoenoplectus trigueter (L.) Palla mat into a dyeing tank, carrying out dyeing by a dye composed of white glue, dry jelly belly, pure green pulp, alkaline bright yellow powder and water, feeding the dyed Schoenoplectus trigueter (L.) Palla mat into a drying tank, and carrying out drying, wherein a Schoenoplectus trigueter (L.) Palla mat transmission rate in the drying tank is in a range of 1000-1500m/h; a temperature in the dyeing tank is controlled in a range of 90-120 DEG C; and the humidity is controlled in a range of 55-80%. The Schoenoplectus trigueter (L.) Palla mat dyeing and drying technology improves drying efficiency, and reduces a labor cost. The Schoenoplectus trigueter (L.) Palla mat dyed by the Schoenoplectus trigueter (L.) Palla mat dyeing and drying technology has a light yellow Schoenoplectus trigueter (L.) Palla natural color and an elegant appearance.

The invention discloses a single yarn dyeing process and system. The system comprises an unwinding mechanism, a guide roller mechanism, a wetting mechanism, a spray dyeing mechanism, a drying mechanism and a winding and rewinding mechanism. Dyeing steps comprise procedures of yarn rewinding and unwinding, yarn humidity adjusting, yarn dyeing, drying, yarn rewinding and forming, and the like, wherein in a dyeing process, a temperature control high-frequency atomization dyeing process is adopted, dyeing effects of more efficiency and more stable chromaticity can be achieved by adjusting atomization chamber temperature and atomization chamber humidity during dyeing, and a dyeing effect of more evenness can be achieved by adjusting yarn humidity before dyeing. By adopting the dyeing process and system, the dyeing course is simple, dyeing permeation is even, the course is continuous, the operation is simple, the yield is high, water consumption and sewage drainage are less, energy consumption is low, loss is less, and economic benefit can be greatly improved.

The invention discloses a 360-degree rotating drum type dyeing machine with low bath ratio. The dyeing machine comprises a box body arranged on a dyeing machine base; one end of the box body is provided with a door, an open rotating drum is arranged in the box body, the open end of the rotating drum is arranged corresponding to the door, and a transmission shaft is fixed at the other end of the box body; the transmission shaft is connected with a power output shaft of a power device through a transmission belt, and the power device drives the rotating drum to rotate through the transmission belt; and a plurality of through holes are uniformly distributed on the side wall of the rotating drum, and a plurality of reinforcing plates are fixed on the inner side of the side wall of the rotating drum. According to the 360-degree rotating drum type dyeing machine with low bath ratio, the open rotating drum is arranged in the box body, a motor drives the rotating drum to rotate in the box body, and dyeing solution flows into the rotating drum from the through holes on the side wall of the rotating drum to dye the textiles in the rotating drum; and the dyeing machine has simple structure, integrates multiple functions of dyeing, washing and dehydrating, and has low bath ratio and high dyeing efficiency.

The invention belongs to the technical field of synthesis and detection, and particularly relates to a fluorescent probe for detecting peroxynitrite and a preparation method and application thereof. The invention provides a universal identification group for detecting peroxy nitrite, and three new fluorescent probes which are respectively named as BT-FAP, NA-FAP and NR-FAP are formed by connectingthe universal identification group with common fluorophores, wherein aminonaphthalene (BT), naphthalimide (NA) and benzophenoxazine (NR) are the fluorophores, and formamide (FAP) is the identification group to achieve the instant reaction with ONOO (all 4s), the fluorescent probe has high sensitivity and good selectivity, and is very suitable for ONOO fluorescence imaging studies in cells.

The invention provides a cotton yarn dyeing process, and belongs to the technical field of dyeing treatment. A method for dyeing cotton yarns used for weaving a jean fabric comprises the following steps: a, preparing the cotton yarns; b, performing surface treatment on the cotton yarns; c, rinsing the cotton yarns for the first time; d, rinsing the cotton yarns for the second time; e, dyeing the cotton yarns; f, drying the cotton yarns; and g, rolling up the cotton yarns. The cotton yarn dyeing process disclosed by the invention has the advantage of capability of dyeing the cotton yarns used for weaving the jean fabric more effectively.

The invention provides a one-step dyeing method of a porous cellulose microspheres-modified dyed cotton blended fabric. The one-step dyeing method comprises the steps of soaking a polyester-cotton blended fabric in an alkaline pretreating solution containing hexadecyl trimethyl ammonium chloride, and padding to obtain a pretreated polyester-cotton blended fabric; adding cellulose fibers into a formate mixed liquid, heating, stirring for dissolving, adjusting pH to neutrality, dispersing in an aqueous solution to obtain a methylated cellulose microcrystalline solution, dropwise adding into acidic regenerating solution, curing, taking out cellulose nano hydrogel spheres, lyophilizing to obtain porous cellulose microspheres, dispersing in a solution containing dimethylol dihydroxy ethylene urea resin, mixing, soaking the pretreated polyester-cotton blended fabric under vibrating, and washing repeatedly to obtain a cellulose microspheres-modified polyester-cotton blended fabric; soaking the cellulose microspheres-modified polyester-cotton blended fabric in a dye, heating for dyeing, taking out, drying, and baking to obtain the dyed polyester-cotton blended fabric.

The invention provides a cashmere-like yarn dyeing method and a cashmere-like yarn dye vat, belongs to the technical field of textile and solves the technical problems that one end of a yarn hanger of an existing double-cylinder dyeing machine is a suspended end, bearing capacity is poor, the existing double-cylinder dyeing machine is not provided with a pedal device, an operator cannot conveniently take down upper yarns, operation is strenuous, a preparation method omits dye liquor and the like. The cashmere-like yarn dyeing method includes the steps: a, blank inspection; b, threading; c, dye liquor manufacture; d, feeding; e, dewatering; f, drying; g, warehousing. The dye vat is used for dyeing cashmere-like yarns and comprises a frame, a plurality of upper dyeing sticks and a plurality of lower dyeing sticks, and an upper vat body and a lower vat body are fixed on the frame. The dye vat has the advantages of high dyeing efficiency, fine supporting effect and fine working stability.

The invention provides a leather dyeing machine, and belongs to the technical field of leather dyeing equipment and the leather dyeing machine can be used for solving the technical problem in the prior art that the leather dyeing machine has low dyeing efficiency. The leather dyeing machine comprises a base, wherein the base is provided with a drum body, the drum body is internally provided with an inner cavity, a rotary shaft I and a rotary shaft II are respectively fixed at two ends of the drum body, a drive device is arranged between the base and the outer end of the rotary shaft I, the rotary shaft II is pivoted on the base, a rotary joint II is arranged outside the rotary shaft II, a power-driven three-way valve is connected outside the rotary joint II, the power-driven three-way valve comprises an outlet I, an outlet II and an inlet, the inlet is communicated with the outer side of the rotary joint II, a vacuum pump is also fixed on the base, and the vacuum pump is communicated with the outlet I through a gas guide tube. Through vacuum pretreatment on the leather in the inner cavity of the drum body, the dyeing efficiency of the leather dyeing machine is improved.