61 results about "Indigo dye" patented technology

The invention relates to natural dye and green chemical industry, and particularly discloses water-soluble biological indigo blue and a preparation method thereof. The water-soluble biological indigo comprises the following raw material components in parts by weight: 80-90 parts of a biological-based indigo concentrated solution; 0.5 to 1 part of dimethyl sulfoxide; 10 to 15 parts of a solubilizer A; 5-10 parts of a solubilizer B; and 10 to 15 parts of deionized water. According to the invention, the bio-based indigo concentrated solution synthesized by a biological method is used as a raw material, the water-soluble compound is innovatively formed through beta-cyclodextrin inclusion and povidone compounding, and the water-soluble compound has relatively high water solubility; the water solubility of the product is greater than or equal to 50g / L, the stability is excellent, the obtained indigo dye is natural in source, environment-friendly and high in water solubility, secondary pollution of the traditional dye to the environment is avoided, and the indigo dye is suitable for sustainable chemical industry and green dyeing and finishing industries and can be widely applied to the fields of textile dyeing, water-based ink, cosmetic color developing agents, medicines and the like.

The invention belongs to the technical field of multifunctional composite seed coatings for ecological restoration of high and cold regions, discloses a Qinghai cold-region bluegrass seed coating agent and a preparation method thereof, and aims to solve the composite problems of component antagonism, time sequence mismatch, freeze-thaw failure and the like in the prior art. The coating agent is characterized in that a three-layer composite structure of a biological core layer, a nutrition buffer layer and a functional protection layer is sequentially coated on the surface of a seed from inside to outside. The biological core layer comprises complex microbial inoculant particles and a first adhesive; the nutrition buffer layer comprises a low-temperature germination inducer, a slow-release nutrition microcapsule and a second adhesive; the functional protection layer comprises an interpenetrating network polymer skeleton, high molecular weight sodium alginate, nano silicon dioxide particles subjected to surface modification by a silane coupling agent KH-570 and food-grade indigo dye. By means of the scheme, efficient germination and stable planting of the Qinghai cold land bluegrass seeds in the high and cold environment are achieved.

The invention discloses a dyeing color difference detection device for indigo dyed cloth. The dyeing color difference detection device comprises an unwinding frame, a horizontal transfer mechanism, a winding frame and a detection mechanism, the horizontal transfer mechanism is arranged at the discharging end of the unwinding frame. The winding frame is arranged at the discharging end of the horizontal transfer mechanism. The detection mechanism is arranged in the middle of the top end of the horizontal transfer mechanism and comprises a detection part, a material pressing part and an adjusting part, the detection part and the material pressing part are symmetrically arranged on the two sides of the adjusting part in the horizontal direction, and the detection part and the material pressing part are synchronously adjusted in the vertical position through the adjusting part. The detection mechanism is jointly composed of the detection part, the material pressing part and the adjusting part, the detection part and the material pressing part are symmetrically arranged on the two sides of the adjusting part in the horizontal direction, material pressing and detection are separately arranged, operation of the material pressing and detection is continuous, and therefore when color difference detection is carried out on the indigo dyed cloth, the surface of the cloth is flattened firstly, then detection is carried out, and the detection efficiency is improved. Therefore, stable optical detection is guaranteed, and detection errors are avoided.

The invention relates to the technical field of k'o-ssu technology and ink art, and discloses a color matching silk twisting method which comprises the following steps: S1, selecting silk threads for traditional k'o-ssu as ground color wefts and ink color wefts; s2, respectively splitting the ground color wefts and the ink color wefts into 12-20 monofilaments, and adjusting the thickness difference of each monofilament through a manual filament splitting method to form a filament diameter gradual change effect; and S3, according to the writing and ink layers of the freehand wash and ink painting, the ground color silk threads and the ink color silk threads are twisted according to a seven-two-three matching method. According to the color matching silk twisting method and the weaving method of the freehand wash and ink painting, natural white raw silk and indigo dyed raw silk are twisted according to different proportions of coke ink, dense ink and light ink through a seven-two-three matching method, and a technology of twisting three yarns and loosening one yarns is combined, so that wefts are gradually changed in layers due to different proportions of ink silk yarns and different twisting modes; the intermittent linear structure formed by loose twisting simulates the dry pen texture of the ink painting, and the problems that the ink color layer is fuzzy and the dry pen texture is deficient are solved.

The present invention provides a plant indigo exhaust dyeing process for garments and the resulting indigo-dyed garments. The process comprises placing garments to be dyed in a non-air-insulated dyeing machine and adding water for infiltration; pumping a mixed solution of liquid caustic soda and sodium sulfate into the dyeing machine and operating the dyeing machine; mixing a plant indigo dye solution and a sodium sulfate solution and adding the mixture into the dyeing machine to dye the garments; pumping the mixed solution of liquid caustic soda and sodium sulfate into the dyeing machine and continuing to dye the garments; subjecting the dyed garments to oxidative water washing, dehydration, drying, ozone treatment, and water softening treatment to obtain indigo-dyed garments. The process provided by the present invention has the advantages of simple process, short dyeing time, convenient operation, re-dyeing and reworkability, and good stability. The indigo-dyed garments obtained by the process have unique style, uniform color, bright color, fresh and natural style, high color fastness, and meet the first-class plant dye standard, meeting subsequent wearing requirements.

To provide a process of recycling waste textile containing or based on polyester, or a process of recycling a waste textile comprising or consisting in dyed cotton fibers comprising indigo or indigoid dyes.SOLUTION: In a process for recycling waste fabric comprising dyed polyester fibers or dyed cellulosic fibers, a polar solvent is caused to flow through the waste fabric in an extraction chamber to remove the dyes. The polar solvent is evaporated in an evaporation chamber and condensed to be sent to a solvent collection tank or back to the extraction chamber. All elastomeric materials present in the waste textile are dissolved by the polar solvent during the treatment.SELECTED DRAWING: Figure 1

The present application relates to the field of printing dye technology, and more particularly to a photochromic printing dye, its preparation method, and its application. The photochromic printing dye provided herein is obtained by dispersing a disperse dye and microcapsules in an organic continuous phase. The disperse dye is selected from indigo dye, anthraquinone dye, or triarylmethane dye. The core material of the microcapsules is an oxidant, and the shell material of the microcapsules is a SiO2 complex. The printing dye provided herein contains microcapsules with an oxidant as the core material. During the washing process, the oxidant is slowly released from the shell material and has strong oxidizing properties. On the one hand, it can have a bactericidal effect. On the other hand, during the drying process, it can react with the disperse dye that is prone to photooxidation, causing the disperse dye to slowly decompose and fade.

The invention relates to a flame-retardant indigo blue composite dye and a preparation method thereof, and belongs to the technical field of dyes. According to the indigo blue composite dye and the preparation method thereof, the synergist is prepared, the synergist and indigo blue are subjected to ball milling and blending to obtain the indigo blue composite dye, phosphite ester groups and benzotriazole in the synergist can synergistically form a firm heat-insulation flame-retardant barrier, the indigo blue dye is endowed with good flame retardance, and a dyed fabric better meets the fireproof safety requirement; the benzotriazole can also enhance the ultraviolet absorption performance of the dyed fabric, and the phosphite group can also have a triangular pyramid-shaped space structure, so that the synergist is integrally of a three-dimensional structure, pi-pi accumulation among indigo molecules is effectively prevented, and the indigo has good dispersion stability; quaternary ammonium salt cations in the synergist enable the dyed fabric to achieve the antistatic effect, and meanwhile, the quaternary ammonium salt cations and indigo blue in the dyeing process can be mutually attracted through electrostatic attraction, so that the color fixing effect is achieved.

The application discloses a method for improving the ozone fastness of indigo dyed jean fabric, and belongs to the field of textile printing and dyeing processing technology, and comprises the following steps: adding the indigo dyed jean fabric into a treatment bath containing reactive amino condensate and secondary amino organosilicon emulsion, controlling the bath ratio to be 1:30, heating to 60 DEG C for treatment for 45 min, taking out the fabric, dehydrating, and drying at 100 DEG C-120 DEG C. The prepared reactive amino condensate has the advantages of high amino content, strong reducing effect and strong ozone resistance; meanwhile, the reactive amino condensate has reactivity and can react with the fiber during fixation, and has durability; the treatment bath of the application is added with the secondary amino organosilicon emulsion, which can provide the softness of the fabric, and the secondary amino group in the molecule also has a reducing effect, so that the ozone color fastness can be improved.

The invention discloses a continuous efficient decolorizing and bleaching system and process for preparing recycled pulp from waste textiles, and belongs to the technical field of waste textile recycling. The decolorizing and bleaching machine with a sectional type screw rod structure, process unit integration and the like is adopted for carrying out pretreatment, decolorizing treatment, first cleaning treatment, bleaching treatment and second cleaning treatment, so that continuous and efficient decolorizing, bleaching and cleaning on the waste textiles (especially the waste textiles containing indigo dyes) under the condition of medium and high concentration (10-30%) are realized; consumption of chemical agents and water resources is reduced, the technological process is shortened, and the technological requirements are met.

The invention relates to the technical field of indigo dyes, in particular to a water-soluble indigo derivative. The dye prepared from the water-soluble indigo derivative can be directly dissolved in water, so that the traditional indigo dyeing process can be thoroughly changed, and the water-soluble indigo derivative has the advantages of environmental protection, low toxicity, convenience in operation and the like, and can replace the traditional indigo dye.

This invention discloses a method for degrading dyes using dye decolorization peroxidase, belonging to the field of biotechnology. This invention expresses a DyP (RhDyPB) derived from the bacterium *Rhodococcus jostii* in *Escherichia coli*. By adjusting the pH, manganese ion, hydrogen peroxide, and Tween-80 content during the decolorization process, the decolorization efficiency of RhDyPB and *E. coli* expressing RhDyPB on the anthraquinone dye Reactive Blue 19, the oxanthracene dye Eosin Y, the indigo dye Indigo Carmine, and the triphenylmethane dye Malachite Green is effectively improved.

1. The name of the product of this design: Dress (Indigo Dye Style). 2. Purpose of the product of this design: clothing for wear. 3. The key design points of this product are the combination of shape, pattern and color. 4. The picture or photo that best illustrates the design points: three-dimensional picture. 5. The design for which protection is sought includes color. 6. The bottom and top surfaces of this design product are not easily visible or cannot be seen during use, so the top and bottom views are omitted. 7. Other circumstances that require explanation: The prosthetic model in this design product is a supporting object and does not belong to the content of the design for which protection is requested.

The invention discloses a multi-parameter control device and method for a reduction-state indigo dye liquor. The device comprises a dye liquor acquisition module, a control module and a control module, wherein the dye liquor acquisition module is used for acquiring a dye liquor sample of the reduction-state indigo dye liquor; the dilution oxidation module is used for converting the reduced indigo blue in the dye liquor sample into the oxidized indigo blue in the dye liquor sample; the titration analysis module is used for automatically judging a titration end point and calculating the concentration of sodium hydrosulfite; automatically judging a titration end point by combining a multi-wavelength spectrophotometry, and calculating the concentration of sodium hydroxide; the optical detection module is integrated with a fixed wavelength light source and an absorbance sensor and is used for detecting the absorbance of the oxidized dye liquor sample and calculating the concentration of indigo through a preset standard curve; the integrated probe module is used for synchronously detecting the pH value, the oxidation-reduction potential and the salt concentration of the dye liquor in real time; and the central control processing module is used for generating a control instruction and controlling the mother liquor added with the reduction-state indigo dye liquor, the sodium hydroxide solution and the sodium hydrosulfite. The method is used for improving the efficiency and the control precision of stability regulation and control of the reduction-state indigo dye liquor.

The present invention relates to a fabric printing method and system with reduced dyes, in particular indigo dye. The object of this invention consists in a method for printing a fabric with a dye and a fabric printing system comprising at least one printing module configured to apply dyeing paste to a fabric surface; at least one oxidation chamber comprising an internal cavity filled by an oxidizing gaseous mixture; a fabric-feeding device configured to feed a fabric sheet through the printing module and the oxidation chamber; wherein each printing module comprises a plurality of print heads, at least one main reservoir; a plurality of sub tanks; a main circulation pathway and a recirculation pathway. The proposed invention consists in a fabric printing method and fabric printing system aimed to solve the limitations of industrialized indigo printing.

1. Name of the designed product: table (indigo dyeing). 2. Use of the designed product: for furniture. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view.

The invention provides a denim fabric processing method. The denim fabric processing method comprises the following steps: S1, warping warp yarns; s2, adopting an electrolytic method to reduce indigo dye for dyeing; s3, performing low-temperature sizing by using the sizing agent; s4, weaving; and S5, desizing at normal temperature or low temperature. According to the denim fabric processing method, in the dyeing process, an electrochemical technology is used for replacing sodium hydrosulfite to reduce indigo, electric power is used for replacing chemicals, clean production without vulcanization is achieved, pollution and carbon emission to the environment are avoided, and better color precision and color fastness are achieved. In the sizing process, the surface of the warp can be better coated with the sizing agent in a non-drying or semi-drying state, and steam consumption and waste of the sizing agent can be reduced. In the desizing process, no chemicals are used, the desizing device is more environment-friendly and pollution-free, part of water can be recycled, exchanged and utilized after being filtered, drying is carried out under the normal temperature condition and without a drying cylinder, redundant water is removed through extrusion or suction, steam used for direct drying is reduced, and energy conservation and emission reduction are achieved.

The invention discloses an electrochemical reduction preparation method of indigo dye liquor, which comprises the following steps: (1) pouring indigo powder needing to be electrolyzed into an indigo powder barrel, meanwhile, pouring alkali liquor needing to be mixed into a main tank body, and pouring alkali liquor for electrolysis into an alkali liquor cylinder; (2) the main tank body conveys the alkali liquor in the main tank body into a stirring tank, the stirring tank conveys the alkali liquor into a material melting cylinder, a load sensor arranged in the material melting cylinder senses the weight of the material melting cylinder, and when the weight of the material melting cylinder reaches a set value, conveying of the alkali liquor is stopped; (3) the indigo powder in the indigo powder barrel is conveyed into a chemical material cylinder through a lifting and conveying device; the indigo powder and alkali liquor can be fully mixed, continuous mixing can be achieved, the indigo white content in an indigo solution obtained after electrochemical reduction is uniform and meets the requirement, meanwhile, cleaning can be conducted after a batch of products are processed, and subsequent batch processing and using cannot be affected.

1. Name of the designed product: clothing set (blue and indigo dyeing). 2. Use of the designed product: the designed product is used for wearing. 3. Design points of the designed product: the combination of shape and pattern. 4. Picture or photo best indicating the design points: combined state reference drawing. 5. The top and bottom surfaces of the set 1 and set 2 of the designed product are parts that are not easily visible or invisible during use, and the top view and bottom view of the set 1 and set 2 are omitted. 6. Other circumstances that need to be explained: set 1 is a coat, and set 2 is a skirt. 7. Other circumstances that need to be explained: the prosthesis model in the design part picture is a prop and does not belong to the content of the design to be protected.

A method of ring dyeing a yarn includes the step of providing a cellulosic yarn selected from a free end yarn and a ring spun yarn. The yarn is immersed in only one sulfur dye box, and the sulfur concentration in the sulfur dye box is 1 g / L to 50 g / L. And taking out the yarns from the sulfur dye box, and airing for less than 30 seconds. The yarn is aired and then rinsed in water. The yarn is dyed in indigo dye bath, and the pH of the indigo dye bath is kept at 10.8 and 12.8. The yarn is taken out of the indigo dye box and then aired.

The present invention provides an electrochemical reduction indigo dye solution device and method. The electrochemical reduction indigo dye solution device of the present invention includes a cathode plate, a cathode functional plate, a diaphragm, an anode functional plate, an anode plate, etc.; the electrochemical reduction indigo dye solution device of the present invention can electrochemically reduce a high-concentration indigo dye solution, and the highest reduction concentration can reach 300 g / L. Moreover, no sulfur-containing compounds are generated during the reduction process, no other heavy metal ions are added, and the process is greener and cleaner. The electrochemical reduction indigo dye solution method of the present invention has the optimal process parameters as follows: the electrolysis temperature is 50 °C, the electrolysis voltage is 11 V, the electrolyte flow rate is 15 ml / min, and the ultrasonic time is 2 h. When electrolyzing through these process parameters, the indigo reduction time is the shortest and the electrolysis efficiency is the highest.

This invention discloses a simulated indigo carmine staining method based on a recurrent adversarial generative network, comprising the following steps: inputting an endoscopic image (white light image) into a trained simulated indigo carmine staining model to generate a simulated indigo carmine staining image; the simulated indigo carmine staining model is a TransUNet backbone network based on Transformer and CNN, wherein the CNN includes a generator G. A Generator G B and discriminator D x The training method for the simulated indigo carmine staining model includes: establishing a network training set; and then generating a simulated staining image P. 3 ; simulated staining image P 3 Input discriminator D x In the middle, by discriminator D x Determine the simulated staining image P 3 Is it an endoscopic image stained image P? 2 The corresponding total loss is obtained and input into the generator G. A and generator G B The present invention provides a simulated indigo carmine staining method based on a recurrent adversarial generative network, which can simulate indigo carmine staining on endoscopic images, reducing medical costs and avoiding multiple endoscopic examinations and drug use.

The invention relates to the field of fine chemical engineering, and discloses an indigo dyeing method which comprises the following steps: 1) mixing water, small molecular alcohol, sodium hydroxide, thiourea dioxide and indigo to prepare a dye liquor with the pH value of 8-11; the small molecular alcohol is at least one of methanol, ethanol, isopropanol and tert-butyl alcohol; in the dye liquor, the concentration of the small molecular alcohol is 20-70 vol.%; (2) reducing the dye liquor obtained in the step (1), and cooling to 30 DEG C or below; the reduction treatment comprises the following steps: the treatment temperature is 40-80 DEG C, and the treatment time is 20-90 minutes. 3) dyeing the bleached natural fibers by using the dye liquor obtained in the step 2). According to the method, the reduction of indigo is promoted by the micromolecular alcohol, the alcohol generates reductive alcohol free radicals by capturing oxidizing species in a system, and meanwhile, the alcohol is used as a hydrogen donor, so that the transfer of protons and electrons in the system is promoted, and the reduction of the indigo is enhanced.

The application belongs to the technical field of lithium ion battery cathode materials, and provides an indigo dye-based porous organic polymer, synthesis and application thereof in lithium ion battery cathode materials. Through a Sonogashira coupling reaction, an indigo molecule containing a carbonyl structure is copolymerized with 1,3,5-triethinyl benzene monomers to synthesize a novel porous organic polymer containing indigo dye in a molecular chain. The material has a large specific surface area, and is the first porous organic polymer based on an indigo structure. Then, a multi-walled carbon nanotube is used to in-situ polymerize the porous organic polymer to obtain a composite material with good electrical conductivity, and a novel indigo-based organic electrode material with high rate performance and good cycle performance is developed. Compared with traditional inorganic materials, the material has simple synthesis, does not need high temperature, is rich in dye material sources, is low in price and can be applied in industrialization.

The invention provides an indigo dyeing assistant for denim fabric as well as a preparation method and application thereof, and belongs to the technical field of textile chemistry. The application method comprises the following steps: (1) immersing the cotton fabric in an indigo dyeing auxiliary solution for modification to obtain a modified cotton fabric; (2) dispersing 1-7% o.w.f of indigo dye in deionized water, adding sodium hydroxide, sodium hydrosulfite and thiourea dioxide, and reducing to obtain an indigo leuco body solution; (3) putting the modified cotton fabric into the indigo leuco body solution, uniformly stirring, padding and dyeing, taking out, ventilating and oxidizing, washing with water, soap boiling, washing with water, and drying to obtain the indigo jean fabric. The novel indigo dyeing auxiliary is adopted to modify the cotton fabric, so that the surface property of the cotton fabric is changed, the dye uptake and the leveling property of the dye are improved, and meanwhile, the salt-free indigo dyeing effect is also realized.

1. Name of the design product: Top (embroidered indigo dyeing). 2. Use of the design product: Daily wear. 3. Design key points of the design product: The combination of shape, pattern and color. 4. Picture or photo that best shows the design key points: Front view. 5. The claimed design includes color. 6. Since the design product is a flat product, the left view is omitted; since the design product is a flat product, the right view is omitted; since the design product is a flat product, the top view is omitted; since the design product is a flat product, the bottom view is omitted.

1. Name of the design product: Dress (embroidered indigo dyeing). 2. Use of the design product: For performances. 3. Design key points of the design product: The combination of shape, pattern and color. 4. Picture or photograph that best shows the design key points: Three-dimensional view. 5. The design for which protection is claimed includes color. 6. The top view of the design product is a part that is not easily seen or not seen during use, so the top view is omitted; the bottom view of the design product is a part that is not easily seen or not seen during use, so the bottom view is omitted.

To provide an indigo dyeing method for partially dyeing a fabric using a dye solution. [Solution] An indigo dyeing method comprising the steps of preparing a dye solution containing color components including indigo and a binder resin, imprinting the dye solution onto a fabric to be dyed, fixing the color components of the dye solution imprinted onto the fabric to be dyed, reducing the color components of the dye solution fixed onto the fabric to be dyed, and oxidizing the reduced color components. The color components are preferably solid components extracted from indigo flowers that are produced during the indigo-building process of indigo dye solution derived from natural indigo.

The invention provides a method for preparing silk skin paper from waste dyed silk threads and isatis root indigo. The method comprises the following steps: pretreating the waste dyed silk threads; preparing the indigowoad root indigo dye; preparing dyed paper pulp; forming a silk paper pulp complex; and manufacturing a finished product to finally obtain the silk skin paper. Waste dyed silk threads and natural indigowoad root indigo are utilized, resource recycling is achieved through an environment-friendly process, meanwhile, natural antibacterial and hydrophobic functions are given to the silk skin paper, and the silk skin paper has ecological value and practical performance.