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46 results about "Blue dye" patented technology

Substituted amino dipyridyl derivative as well as preparation method and application thereof

The invention provides a substituted amino bipyridine derivative as well as a preparation method and application thereof, the structure of the substituted amino bipyridine derivative is as shown in formula I. In the formula, R1, R2, R3 and R4 are independently selected from any one of H, C1-C6 alkyl, C2-C6 alkenyl, C2-C20 alkynyl, C3-C6 cycloalkyl, C5-C20 aryl or C5-C20 heterocyclic radical; when R1, R2, R3 and R4 are not methyl, no more than one of R1, R2, R3 and R4 is H; and when any one of R1, R2, R3 and R4 is methyl, the rest groups are independently selected from H or methyl. When the substituted amino dipyridyl derivative provided by the invention is used as a blue dye, the dyed blue dye is bright in color, deep in dyeing and comprehensive in dyeing fastness; the preparation process is simple, convenient to purify, safe, simple, convenient and energy-saving, the product quality is stable, the reproducibility is good, the yield is high, and the method is suitable for industrial production.
Owner:VERTEXYN (NANJING) BIOWORKS CO LTD

Composite blue dye and fermentation process thereof

The invention relates to the technical field of microbial fermentation, and particularly discloses a composite blue dye and a fermentation process thereof. According to the method, the fermentation temperature and pH are controlled, the flux of synthesized mesoscopic blue is limited, part of the flux is led to synthesis of pyridone, the mesoscopic blue in the fermentation liquor is regulated and controlled to be mixed with pyridone in a certain proportion, and the purified product mesoscopic blue is compounded with pyridone to form the composite blue dye with a stable specific color. The cost of separately purifying the ornamental blue and the pyridone and then mixing the ornamental blue and the pyridone according to a certain proportion to obtain the composite blue dye is reduced, so that the composite blue dye can be better applied to a subsequent dyeing process. According to the invention, a blue-viewing product form is added, a better dyeing effect can be achieved on the premise of not increasing the production cost, and the application market is widened.
Owner:VERTEXYN (NANJING) BIOWORKS CO LTD

Biological blue dye, staining solution and preparation method and application thereof

The invention relates to the technical field of dyeing and finishing, and particularly discloses a biological blue dye, a dyeing solution as well as a preparation method and application thereof. The pyridone dye is mixed into the ornamental blue dye, the ornamental blue light is adjusted, the ornamental blue light shifts to the cyan light, and the red light effect is weakened, so that the problems of reddish color and insufficient dyeing depth after ornamental blue dyeing can be effectively solved, and along with the increase of the mixing proportion of the pyridone dye, higher color depth can be obtained under the same dyeing concentration and number of times, and the dyeing effect is improved. The dry and wet rubbing fastness of the dyed cloth is improved by 0.5 level.
Owner:XUZHOU HEGU LIFE TECH CO LTD

Composite blue dye and its fermentation process

The application relates to the technical field of microbial fermentation, and specifically discloses a kind of compound blue dye and its fermentation process. The application controls the fermentation temperature and pH, limits the flux of observing blue, makes part of the flux to the synthesis of pyridone, regulates and controls the mixed pyridone in the fermentation liquor at a certain proportion, and after purification, the product is formed into a compound blue dye with stable specific color, reduces the cost of mixing the compound blue dye at a certain proportion after separately purifying observing blue and pyridone, and makes it better applied to the subsequent dyeing process. The application increases the product form of observing blue, can achieve better dyeing effect under the premise of not increasing production cost, and widens the application market.
Owner:VERTEXYN (NANJING) BIOWORKS CO LTD

Antibiotic-demand-free ornamental blue high-yield strain as well as construction and application thereof

The invention relates to the technical field of synthesis of natural dyes by a biological method, in particular to an antibiotic-demand-free ornamental blue high-yield strain as well as construction and application of the antibiotic-demand-free ornamental blue high-yield strain. Corynebacterium glutamicum is used as an initial strain, a tricarboxylic acid circulating gene is regulated and interfered, and the copy number of exogenous blue pigment synthetase BpsA in a genome is adjusted, so that the ornamental blue high-yield strain is obtained. The strain does not need to use antibiotics in the fermentation process, the yield is stable, the product production capacity equivalent to the level when antibiotics are used can still be achieved through fermentation under the antibiotic-free condition, and the growth performance of the strain is kept. The method for producing the ornamental blue by using the strain provided by the invention ensures that the ornamental blue product is natural and green, also improves the efficient production capacity of the strain, solves the contradiction between green environmental protection and stable high yield of the ornamental blue dye, is green and environment-friendly, and has a remarkable industrial application prospect.
Owner:VERTEXYN (NANJING) BIOWORKS CO LTD

Display panel and display device

PCT designated stageWO2026007671A1AnthraquinonesDisplay device
The present disclosure provides a display panel and a display device. The material composition of a red filter unit (201) of the display panel comprises a 1,5-substituted alkylamino anthraquinone red dye having a mass percentage content of 0.5-20%. The material composition of a blue filter unit (202) comprises a blue dye, the blue dye comprising at least one of a 1,4-substituted alkylamino blue dye or a hydroxy anthraquinone blue dye which has a mass percentage content of 0.5-20%. The material composition of a green filter unit (203) comprises a 1,4-substituted alkylamino anthraquinone green dye having a mass percentage content of 0.5-20%.
Owner:BOE TECHNOLOGY GROUP CO LTD

DISPLAY FACILITY

UndeterminedDE102025137500A1Imaging qualityDisplay device
A display device (100) can include an antireflection pattern (152) or a column spacer (154) positioned between a light-emitting diode (D) and a bank layer (150), wherein the antireflection pattern (152) or the column spacer (154) contains a blue dye (135b). The blue light reflected by the antireflection pattern (152) or the column spacer (154) is barely perceptible to the human eye, thus helping to reduce visible spots such as rainbow mura caused by external light reflections. Furthermore, the blue light emitted by the light-emitting diode (D) can pass through the antireflection pattern (152) and / or the column spacer (154), thereby increasing the intensity of the transmitted light. This can improve image quality while minimizing brightness loss.
Owner:LG DISPLAY CO LTD

Trail Skirt (Tank Top Blue Dye Gradient Mermaid Tail)

1. The name of the design product: trailing skirt (topless top blue dye gradient fishtail). 2. The use of the design product: for wearing. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view. 5. The bottom of the design product is not easy to see or not visible during use, omit the top view; the top of the design product is not easy to see or not visible during use, omit the bottom view. 6. Other circumstances that need to be explained: the prosthesis model in the design product is a prop and does not belong to the protected design content.
Owner:JIANGXI INST OF FASHION TECH

High-fastness disperse blue dye as well as preparation method and application thereof

The invention discloses a high-fastness disperse blue dye as well as a preparation method and application thereof, and belongs to the technical field of disperse dyes. The dye comprises the following raw materials in parts by weight: 45-50 parts of a component A, 0-18 parts of a component B and 46-62 parts of an auxiliary agent. The general formula of the component A is the general formula of the component B. The preparation method comprises the following steps: (1) weighing the raw materials; and (2) uniformly mixing to obtain a finished product. The high-fastness disperse blue dye disclosed by the invention has excellent wet treatment fastness such as washing resistance and perspiration resistance and high sublimation fastness, overcomes the defect of the existing dye in fastness performance, complements and perfects the chromatography of the high-fastness disperse blue dye, especially fills the blank of no high-sublimation-fastness sapphire blue and brilliant blue series in printing and pad dyeing processes, and has the advantages of high fastness, high fastness, high fastness and the like. The use requirements of various high-end textiles under different dyeing processes can be met.
Owner:HANGZHOU JIHUA JIANGDONG CHEMICAL CO LTD

Red light fluorescent probe for hypochlorous acid detection and application thereof

The invention belongs to the technical field of biological probe preparation, and particularly relates to a fluorescent probe for hypochlorous acid detection and application thereof. The fluorescent probe comprises a near infrared fluorescent probe NIR-CDs and a red light fluorescent probe R-CDs, and the NIR-CDs probe is synthesized and prepared by taking toluidine blue dye as a precursor and introducing gallic acid; the R-CDs are prepared by using a nuclear fast red dye as a precursor to adjust the emission wavelength of carbon dots and introducing biuret. The fluorescent probe provided by the invention is simple and convenient in preparation method, easy to operate and stable and reliable in detection result, and compared with part of types of probes in the prior art, the probe material provided by the invention has the advantages of high sensitivity, wide application range, stable fluorescent signal and the like, so that the probe material can be used for preparing the fluorescent probe. The fluorescent probe has very important practical value and popularization and application significance in hypochlorite (ClO-) detection or related fluorescence imaging detection application.
Owner:HUANGHUAI UNIV

Intelligent sleeve glasses type multifunctional liquid crystal dimming glasses

The invention relates to the field of intelligent wearable equipment, and discloses intelligent sleeve glasses type multifunctional liquid crystal dimming glasses which comprise a glasses frame, glasses legs are fixedly connected to the two sides of the glasses frame, a color adjusting assembly is fixedly connected to the outer portion of the glasses frame, a shell is fixedly connected to the outer portions of the glasses legs, and an interaction assembly is installed in the shell. The shell is used for communicating with a mobile terminal APP and customizing the light transmittance, and a modularized light color self-adaption and audio enhancement integrated system is installed in the shell. The light color sensing module is arranged to collect ambient light intensity and spectral information in real time, a multi-layer color adjusting assembly composed of a red dye liquid crystal layer, a blue dye liquid crystal layer and a neutral gray light reducing film is combined, and a light color compensation algorithm integrated in the central processing module is used for cooperative operation. The driving voltage of the three layers of optical films can be dynamically adjusted according to specific color temperature characteristics of ambient light and user setting, so that color cast is compensated while brightness is adjusted.
Owner:福建紫鸿鹄科技有限公司

Tableware (blue dyed gold brocade)

ActiveCN309743988SPolymer scienceEngineering
1. The name of the design product: tableware (blue dye gold Tang grass). 2. The use of the design product: the design is used for tableware in the scene of family, restaurant, etc. 3. The design points of the design product: the combination of shape, pattern and color. 4. The picture or photo that best shows the design points: set 7 top view. 5. The design for which protection is sought includes color. 6. As expressed in the views submitted, omit other views, omit the rear, left and right views of each set.
Owner:SHANGHAI CHIMENG TRADING

A red stain, reagent combination and method for masson's trichrome staining

The application discloses a red dye solution, a reagent combination and a method for Masson trichrome staining, and belongs to the field of histochemistry technology. The red dye solution comprises 0.4-1.0% of bibracine, 0.4-1.0% of temptation red and 1-2% of acetic acid, and water is used as a solvent, and the red dye solution further comprises 0.05-0.15% of orange G sodium salt; the reagent combination comprises the red dye solution and further comprises a blue dye solution, the blue dye solution comprises 2% of aniline blue, 1-2% of acetic acid, and water is used as a solvent, and the blue dye solution further comprises 0.005-0.03% of fast green, 0.0025-0.015% of brilliant green or 0.005-0.03% of bromocresol green sodium salt. The reagent combination further comprises hematoxylin dye solution, red differentiation agent and blue differentiation agent. The improved red dye solution for Masson trichrome staining provided by the application increases the affinity for muscle fiber dyeing, makes the muscle fiber dyeing more firm, and can still maintain bright red after phosphomolybdic acid differentiation. Meanwhile, the improved blue dye solution makes the collagen fiber dyeing more bright, and the color contrast between the muscle fiber and the collagen fiber is more obvious and easier to distinguish.
Owner:图凌(杭州)生物医药有限公司

A mixed dyeing solution of biological blue dye and biological black dye and a dyeing method thereof

This invention relates to a blended dyeing solution of biological blue dye and biological black dye and its dyeing method, belonging to the field of dyeing and finishing technology. This invention utilizes a blend of biological blue dye and biological black dye, including a co-bath dyeing solution and an over-dyeing solution. Dyeing textiles using the co-bath dyeing solution, or using the black dye solution in the over-dyeing solution for initial base dyeing followed by over-dyeing with the blue dyeing solution, can significantly enhance the depth of the blue color, resulting in a navy blue textile with a reddish correction effect. Dyeing textiles using the co-bath dyeing solution and the over-dyeing solution of this invention can achieve a color depth and luster that are different from the insufficient depth achieved by dyeing the two dyes individually. Furthermore, it can synergistically improve the color fastness to dry and wet rubbing by 0.5-1 grade, and achieve a light fastness of 6-7 grade.
Owner:VERTEXYN (NANJING) BIOWORKS CO LTD

Blue dye and its fermentation process

PendingCN122382163ABiotechnologyMicrobiology
The application provides a blue dye and a fermentation process thereof, the dye comprising (85-98):(0.01-5):(0.5-10) of obelin, N-acetyl obelin and pyridinone in terms of mass percentage; the fermentation process comprises the following steps: inoculating activated obelin-producing recombinant strain liquid into a seed culture medium to culture, and obtaining a seed liquid; and then inoculating the seed liquid into a fermentation tank to carry out three-stage fermentation culture; the process utilizes the stage change of temperature, pH and dissolved oxygen to accurately control the metabolic flow of the strain, ensures the efficient synthesis of obelin, and improves the relative content of N-acetyl obelin and pyridinone; the mass percentage of obelin, N-acetyl obelin and pyridinone in the fermentation liquid is (85-98):(0.005-5):(0.2-10). The application can accurately control the synthesis ratio of the three components, realizes efficient preparation under the premise of ensuring the stability of the components, has strong controllability, and is suitable for industrialized fermentation production.
Owner:VERTEXYN (NANJING) BIOWORKS CO LTD

Breast cancer sentinel lymph node positioning device

PendingCN121177035ADiagnosticsSurgerySentinel lymph nodeMedical equipment
The invention provides a breast cancer sentinel lymph node positioning device, and belongs to the technical field of medical equipment. According to the device, a light absorption substance is injected through the injection module, the laser emission module emits a laser beam of which the wavelength is matched with the absorption peak of the light absorption substance, and the infrared thermal imaging module captures the temperature change caused by the photothermal effect and displays the overall design of an infrared thermal image. The sentinel lymph node positioning device solves the problem that an existing device using radionuclide combined with a blue dye method cannot position sentinel lymph nodes visually and accurately in real time without radiation. The device comprises an injection module, a laser emission module and an infrared thermal imaging module, and further comprises a temperature control module for controlling the temperature of an irradiation area of the laser emission module to be lower than a set temperature threshold value; the position adjusting module is used for adjusting the position of the laser emitting module; and the control module is used for controlling the laser emitting module, the infrared thermal imaging module and the position adjusting module.
Owner:CHONGQING YIBONA MEDICAL TECH CO LTD

5, 5 '-dihydroxy-observation blue derivative as well as preparation method and application thereof

The invention discloses a 5, 5 '-dihydroxy-observation blue derivative as well as a preparation method and application thereof, and relates to the technical field of dyes. The invention provides a preparation method of 5, 6-difluoro-2, 3 According to the 5, 5 '-dihydroxy-observation blue derivative, cyanuric chloride is adopted to replace one or two hydroxyl groups on a 5, 5'-dihydroxy-observation blue parent nucleus, then any one of-NH-SO3M,-NH-Ar-SO3M and-NH-Ar-COOM is introduced on the basis of cyanuric chloride modification to replace chlorine atoms of cyanuric chloride, the polarity of molecules is improved, the molecular weight of the cyanuric chloride is increased, and the molecular weight of the cyanuric chloride is increased. And when the dye molecules are used as dye molecules, homogeneous dye liquor with good dispersity can be obtained, and the contact between the dye and fabric fibers is facilitated, so that the reactive dye with good dye uptake, fixation rate and color fastness to fabrics can be obtained.
Owner:VERTEXYN (NANJING) BIOWORKS CO LTD

High-weather-resistance blue dye as well as preparation method and application thereof

The invention relates to the technical field of functional dyes, and particularly discloses a high-weather-resistance blue dye and a preparation method and application thereof.The preparation method of the high-weather-resistance blue dye comprises the following steps that S1, mitoxantrone, 3-bromine-1-amidonaphthalene, a catalyst and an organic solvent are mixed and then heated and stirred for a reaction, a solid is obtained through filtering, and the solid is dried; washing with water and ethanol, and drying to obtain a dye intermediate A; and S2, mixing the dye intermediate A with 2-amino-4 '-methoxybenzophenone, a catalyst and an organic solvent, heating, stirring and reacting, extracting, carrying out rotary evaporation to obtain a solid, recrystallizing, and drying to obtain the high-weather-resistance blue dye. The benzophenone structure is introduced into the anthraquinone dye, so that the light resistance and the heat resistance of the anthraquinone dye are synchronously improved fundamentally.
Owner:SHANGHAI HUZHENG IND CO LTD

A biological blue dye, a dyeing solution, and a preparation method and application thereof

The application relates to the dyeing and finishing technical field, and particularly discloses a biological blue dye, a dyeing liquid and a preparation method and application thereof. The application mixes and matches pyridone dyes in the observation blue dye, adjusts the observation blue light, offsets the light to cyan, and weakens the red light effect, so that the problem of red light color after the observation blue dyeing and insufficient dyeing depth can be effectively solved, higher color depth can be obtained under the same dyeing concentration and number of passes with the increase of the mixing and matching proportion of the pyridone dyes, and the dry and wet rubbing fastness of the dyed fabric is improved by 0.5 levels.
Owner:XUZHOU HEGU LIFE TECH CO LTD

A badminton shuttlecock manufacturing process and a badminton shuttlecock produced by the process.

ActiveCN119711213BWool fibre washing/scouringDyeing processPolymer scienceIndigo dye
This invention discloses a badminton shuttlecock production process and a badminton shuttlecock prepared using this process, relating to the field of sporting goods. The process includes the following steps: S1, cleaning the feathers: collecting and sorting the feathers and placing them in a pre-treatment device for cleaning and drying. During the cleaning process, the feathers are dyed and bleached using an indigo dye solution within the pre-treatment device; S2, rinsing and sorting the feathers: rinsing the cleaned feathers into individual feather pieces; S3, drilling holes in the shuttlecock head and inserting feathers: drilling a ring of holes in the end face of the shuttlecock head and inserting the feathers one by one into the holes; S4, binding with thread; S5, labeling and packaging. This invention involves briefly immersing the cleaned feathers in a low-concentration indigo dye solution. Indigo produces a visual effect that makes the originally white feathers appear brighter and purer; that is, the pale blue dye enhances the reflection of white light, making the feathers appear whiter and reducing the likelihood of yellowing.
Owner:NINGBO DONGGANG SPORT PROD LTD

A method of dyeing silk fabric

The present application relates to the dyeing and finishing technology field of natural dyes on fabrics, and particularly relates to a silk fabric dyeing method. The dyeing method of the present application first dilutes, reduces, and then adjusts the pH and centrifugally processes the observation blue fermentation liquor to obtain an observation blue dye mother liquor, and further dilutes the observation blue dye mother liquor to obtain an observation blue dyeing liquid; then, the pretreated silk fabric is completely immersed below the liquid level of the observation blue dyeing liquid, dyed, taken out, and air-oxidized, and then washed with water, air-dried, finally subjected to soaping treatment and air-drying to obtain the dyed silk fabric. The method provides a dyeing method for silk fabrics aiming at the problem that silk fabrics are difficult to dye at present, selects the observation blue from a microbial source as a dyeing agent, has the advantages of green environmental protection and easy combination with silk fabrics; meanwhile, the dyeing process of the present application reduces the amount of sodium hydrosulfite, thereby reducing the pollution to the environment, and on the other hand, reduces the dyeing temperature and time, reduces the energy consumption, and improves the dyeing efficiency.
Owner:VERTEXYN (NANJING) BIOWORKS CO LTD

Blue dye compound and photoresist

The invention provides a blue dye compound and photoresist, and belongs to the technical field of dye compounds. The blue dye compound comprises a compound as shown in a formula I. By designing the molecular structure of the blue dye compound, the dye compound which has relatively good optical performance and relatively high thermal stability, is uniform in dyeing and is simple and convenient in preparation method is obtained.
Owner:FUYANG SINEVA MATERIAL TECHNOLOGY CO LTD

Polyamide compositions with reduced yellowing properties and methods of making the same

PCT designated stageWO2026143183A1Phosphoric Acid EstersPolymer science
This disclosure relates to a polyamide composition containing a polyamide and small amounts of (a) a combination a sterically hindered phenolic primary antioxidant and an organophosphate antioxidant and / or (b) a blue dye, that unexpectedly provide color improvements to the resulting polyamide composition, both after the antioxidants have been introduced and for a sustained period of time thereafter.
Owner:ASCEND PERFORMANCE MATERIALS OPERATIONS LLC

Optical laminate, polarizing lens, and eyewear

The present invention relates to an optical laminate (100, 110) which comprises a support (10), a polarizing element (20), and at least one adhesive layer (30) that is disposed between the support (10) and the polarizing element (20). The polarizing element (20) is a gray polyvinyl alcohol-based polarizing film in which hue values a*s and b*s in CIE 1976 L*a*b* color space are respectively in the range of - 5 to 5 inclusive. At least one adhesive layer (30) includes a plurality of hue adjustment dyes for adjusting the hue of the optical laminate (100, 110) and the transmittance of the visible light region, and the hue adjustment dyes include at least one of the following dyes (A) to (C). (A) A blue dye (which has a maximum absorption wavelength in a wavelength range of 600 nm to 700 nm inclusive), (B) a green dye (which has a maximum absorption wavelength in a wavelength range of 500 nm to 600 nm inclusive), and (C) a red dye (which has a maximum absorption wavelength in a wavelength range of 400 nm to 500 nm inclusive)
Owner:NIPPON KAYAKU CO LTD

COF modified blue dye, lens coating, lens as well as preparation method and application of COF modified blue dye

The invention discloses a COF modified blue dye, a lens coating, a lens and a preparation method and application thereof, and belongs to the technical field of resin lenses. The preparation method of the COF modified blue dye comprises the following steps: step 1, preparing COF powder; step 2, a preparation method of the COF modified blue dye: dispersing 1 part by weight of COF powder in 5-10 parts by weight of 5-8wt% HCl aqueous solution to obtain a COF dispersion liquid; the preparation method comprises the following steps: dissolving 1-3 parts by weight of a blue dye in 10-30 parts by weight of DMSO, uniformly mixing to obtain a blue dye dispersion liquid, uniformly mixing the COF dispersion liquid and the blue dye dispersion liquid, adding a polydimethylsiloxane stabilizer, freeze-drying, and crushing to obtain the product. According to the lens coating obtained by the invention, the blue dye is uniformly dispersed, the blue light reflecting effect is excellent, and meanwhile, an object is clearly seen without distortion; the problems of spots and flow marks are avoided, the yield is high, and the method is suitable for industrial mass production.
Owner:JIANGSU XINDA FINE CHEM TECH CO LTD

Reaction kettle for preparing reactive brilliant blue dye with high thermal mass transfer

The utility model provides a reaction kettle for preparing a reactive brilliant blue dye with high thermal mass transfer, and relates to the technical field of reaction kettles. The reaction kettle for preparing the reactive brilliant blue dye with the high heat mass transfer comprises a partition plate, the upper surface of the partition plate is fixedly connected with a lifting frame, the inner surface of the lifting frame is fixedly connected with an outer partition cover, the outer circumferential surface of the outer partition cover is in through connection with a ventilation pipe, and the lower end of the outer partition cover is rotationally connected with a sealing ring. According to the reaction kettle for preparing the reactive brilliant blue dye with the high heat mass transfer, an auxiliary rotating frame is driven to rotate through the output end of a motor, so that a sealing ring is driven to rotate in the rotating process of the auxiliary rotating frame, and air entraining columns on the two sides are driven to rotate with the output end of the motor as the axis in the rotating process of the sealing ring; therefore, the flowing direction of hot air is guided through the grooves of the air entraining columns in the rotating process, the purpose of reducing heating dead zones of the mixing cylinder is achieved, and the problem that heating airflow is not guided to cause uneven heating is solved.
Owner:JIANGSU WORLD CHEM CO LTD

Tote bag (blue dye)

ActiveCN309853944SPolymer scienceOptics
1.The name of the design product: handbag (blue dye). 2.The use of the design product: a bag for carrying articles. 3.The design points of the design product: the combination of shape, pattern and color. 4.The picture or photo that best indicates the design points: perspective view. 5.The design claimed contains color.
Owner:SUZHOU IND PARK SERVICE OUTSOURCING VOCATIONAL COLLEGE (SUZHOU SERVICE OUTSOURCING TALENT TRAINING & TRAINING CENT)

Active dark blue dye composition and dye product

The invention discloses an active dark blue dye composition which comprises a component A, a component B and a component C. The component A is selected from at least one of dye compounds shown in the formula (I), the component B is selected from at least one of dye compounds shown in the formula (II), and the component C is selected from at least one of dye compounds shown in the formula (III). In the active dark blue dye composition, the mass percentage content of the component A is 1-50%, the mass percentage content of the component B is 1-50%, and the mass percentage content of the component C is 45-90%, and when the active dark blue dye composition is used for printing and dyeing a nitrogen-containing and / or hydroxyl-containing fiber material, the active dark blue dye composition has the characteristics of excellent washing resistance, chlorine fastness resistance, sweat-light composite fastness resistance and the like. (I), (II) and (III)
Owner:ZHEJIANG KEYONG CHEM CO LTD +2