250 results about "Dye molecule" patented technology

The invention relates to the technical field of wastewater treatment, and discloses a dynamic circulation type chitosan column azo dye wastewater treatment system which comprises an integrated reaction column which is vertically arranged, a water inlet is formed in the bottom of the integrated reaction column, a water outlet is formed in the top of the integrated reaction column, and a composite functional fiber felt of a roll-shaped structure is arranged in the integrated reaction column. An inert anode is arranged in the center of the interior of the integrated reaction column, the composite functional fibrofelt is used as a distributed cathode, azo dye wastewater enters the integrated reaction column from a water inlet, dye molecules in the wastewater are adsorbed by the composite functional fibrofelt and then are discharged from a water outlet, and the wastewater is recycled. The composite functional fiber felt comprises a modified chitosan component used for adsorbing azo dye, a conductive component enabling the composite functional fiber felt to have conductivity, and a piezoelectric component capable of generating an electric field under mechanical stress. Two output contacts of the electric field applying device are respectively connected with the inert anode and the distributed cathode, and the electric field applying device is used for applying an electric field in a regeneration stage; provided is a mechanical vibration applying device. The adsorption-regeneration-degradation process is integrated in a single reactor, and in-situ self-cleaning and function recovery are achieved through self-sensing and intelligent control. The problem that in the prior art, after the adsorption column is saturated, off-line regeneration or replacement is needed is thoroughly solved.

The invention relates to the technical field of immunochromatography, in particular to time-resolved fluorescent microspheres, a preparation method and application of the time-resolved fluorescent microspheres in PSP / CRP / MxA quantitative detection immunochromatography test strip, and the preparation method of the time-resolved fluorescent microspheres comprises the following steps: 1) preparing surface aminated polystyrene microspheres; (2) carrying out glutaraldehyde crosslinking and 1, 10-phenanthroline-5-amino combination; 3) grafting a rare earth fluorescent dye on the surface; and 4) coating a polymer shell layer and modifying carboxyl. According to the invention, through a dual fixation strategy of surface grafting and polymer coating, the time-resolved fluorescent dye is confined to a functional region between the surface of the microsphere and a polymer shell layer, diffusion and leakage of dye molecules to the external environment are blocked, and the problem of dye shedding of traditional fluorescent microspheres is solved; the polymer shell layer can effectively isolate external ultraviolet light, oxygen and other corrosive factors, reduce photooxidative degradation and non-radiative transition loss of fluorescent molecules, and improve the light stability and fluorescent lifetime of the fluorescent molecules.

The invention provides a fullerene pyrrolidine enantiomer mediated cholesteric liquid crystal with circular polarization luminescence property and nonlinear anti-saturated absorption property, and a preparation method and application thereof. The method comprises the following steps: dissolving C60, paraformaldehyde and (R / S)-(+ / -)-alpha-methylbenzylamine in an organic solvent, and carrying out heating reflux reaction to obtain fullerene pyrrolidine enantiomer molecules; dissolving in carbon disulfide to obtain an enantiomer solution; dissolving achiral dye molecules in a solvent to obtain a dye solution; and dropwise adding the enantiomer solution and the dye solution into thermotropic liquid crystal molecules, and drying to obtain the thermotropic liquid crystal. The method is simple, the obtained cholesteric liquid crystal system shows a characteristic fingerprint texture and has a periodic spiral structure, and the doping proportion of chiral molecules is easy to adjust; the composite system has good time stability and is not prone to phase separation; the liquid crystal platform shows good circular polarization luminescence performance and third-order nonlinear optical property, and is a cholesteric liquid crystal platform with an integrated function.

The invention relates to a coloring composition, a color photoresist, a color filter and a display device, the coloring composition comprises a dye and a dispersant, the structural formula of the dye is shown as follows: at least one of X, R1, R2, R3, R4, X1, X2, X3 and X4 in dye molecules is configured to be connected with the dispersant through a chemical bond. According to the coloring composition provided by the invention, the dye and the dispersing agent can be connected through chemical bonds, so that precipitation or migration of the dye in the color filter prepared from the coloring composition is avoided, the weather resistance of the dye in the color filter is improved, and the reliability of the display device is improved.

The invention relates to the related technical field of costume fabrics, in particular to a high-antibacterial anti-sunshine costume fabric not prone to fading and a preparation technology, the high-antibacterial anti-sunshine costume fabric comprises a base fiber layer, and an antibacterial finishing layer, an anti-ultraviolet layer and a color fastness enhancing layer are arranged on the base fiber layer. According to the high-antibacterial anti-sunshine clothing fabric not prone to fading and the preparation process, a nano-silver and chitosan composite system is adopted, nano-silver releases silver ions to destroy the physiological structure of bacteria, chitosan inhibits the activity of the bacteria through the amino effect, the nano-silver and the chitosan cooperate with each other, the antibacterial effect of clothing is improved, nano-zinc oxide and titanium dioxide composite sol improve the antibacterial effect of the clothing, and the antibacterial effect of the clothing is improved. Through multiple mechanisms of reflecting, scattering and absorbing ultraviolet rays, broadband protection is formed, the ultraviolet rays can be effectively blocked, the high-grade sunscreen requirement is met, the skin is protected from being damaged by the ultraviolet rays, the sulfonic-group-containing organic dye fixing agent, dye molecules and fibers form chemical bond combination, a stable color fixing network is constructed, and the appearance color and luster are kept lasting.

The invention discloses a high-specific-surface-area hexagonal boron nitride nanotube material with an adjustable microporous structure and a preparation method and application thereof.The preparation method of the hexagonal boron nitride nanotube material comprises the steps that urea and boric acid are dissolved in ethanol-water, stirring is continuously conducted in a water bath at 75-85 DEG C till a solvent is completely evaporated and dried, and the hexagonal boron nitride nanotube material is obtained; putting the powder into a graphite mold, heating to 950-1050 DEG C at a heating rate of 500-1200 DEG C / s under the protection of inert gas, keeping for 3-8 seconds, and naturally cooling to room temperature; and repeating the operation of thermal activation for 5-8 times to finally obtain the hexagonal boron nitride nanotube material. The h-BN-ts material prepared by a unique preparation process has the excellent properties that the specific surface area is greater than or equal to 1000 m < 2 > / g, the pore size distribution is less than 2 nm, and the pore volume is 0.4-1.5 cm < 3 > / g, and the technical problems of low adsorption efficiency and poor selectivity of a traditional adsorption material to oil, organic solvents and dye molecules are effectively solved.

The invention discloses a three-dimensional fluorescent nano printing method capable of being monitored in situ in real time, which comprises the following steps: (1) preparing a photoresist which comprises the following components: a two-step absorption photoinitiator, a small molecule polymerization monomer, aggregation-induced emission dye molecules and a photoresist auxiliary reagent; (2) a continuous laser beam acts on the photoresist through a three-dimensional scanning system, a double-step absorption photoinitiator generates an active factor through a double-step absorption process, a photopolymerization reaction of a small molecule polymerization monomer is initiated, and three-dimensional nano printing is achieved; in the photopolymerization region, the doped aggregation-induced emission dye molecules enable the printing structure to present strong fluorescence and the non-polymerization region to present weak fluorescence; and (3) rapidly scanning the three-dimensional nano printing area, obtaining the fluorescence intensity distribution of the three-dimensional nano printing structure in real time, and tracking and exploring the dynamic process and error correction of the three-dimensional nano printing. According to the invention, ultrahigh-precision fluorescent pattern three-dimensional nano printing and real-time in-situ detection can be realized.

The present invention discloses an anthraquinone and anthracene compound meso-substituted cyanine dye, its preparation method, and application. The anthraquinone and anthracene compound meso-substituted cyanine dye is prepared by meso-substituting a heptamethine cyanine dye with an anthraquinone or anthracene compound. The substituent groups regulate the fluorescence emission and heat release pathways of the dye, enhancing the photothermal effect of the dye molecule and enabling photoacoustic imaging. Furthermore, its excellent biocompatibility and low cytotoxicity make it suitable for use in the biological and medical fields.

The invention discloses a preparation method of a chitosan modified polymeric dye and application of the chitosan modified polymeric dye in a temporary hair dye, and belongs to the technical field of polymeric dyes. The preparation method comprises the following steps: (a) dissolving dye containing monohydroxyl or monoamino in an organic solvent to obtain a solution A; (b) dissolving isocyanate in an organic solvent to obtain a solution B; dropwise adding the solution A into the solution B at the temperature of 20-80 DEG C, and reacting at the temperature of 20-80 DEG C to obtain a modified dye molecule solution C; (c) dissolving chitosan in a mixed solvent of water and ethanol to form a chitosan solution; and dropwise adding the modified dye molecular solution C into the chitosan solution, and reacting at 10-50 DEG C to obtain the chitosan modified macromolecular dye. The modified polymer dye has the characteristics of high safety, high stability, strong binding force with hair and the like, so that a temporary hair dye prepared from the modified polymer dye has a good dyeing effect.

The invention relates to the technical field of dye separation, and discloses a loose nanofiltration membrane and a preparation method and application thereof, the loose nanofiltration membrane comprises a porous support membrane, and a polyesteramide separation layer formed on the porous support membrane through one-step interfacial polymerization of nucleoside monomers and multi-acyl chloride monomers. The nucleoside monomer is one or more than two of adenosine, guanosine and cytidine nucleoside. The nucleoside monomer with a long-chain structure, a branched-chain structure, a rigid twisted structure and a plurality of hydrophilic reaction sites is selected as an interfacial polymerization water-phase monomer, so that the loose nanofiltration membrane is endowed with excellent permeation and separation performance. The membrane has a high rejection rate on dye molecules such as Congo red and methyl blue, also has high water permeability and extremely high dye / inorganic salt separation selectivity, and shows good application potential in the aspects of dye production and purification and dye wastewater recovery.

The invention relates to a cellulose fabric ozone water washing method. The method comprises the following steps: 1) feeding cloth and washing with cold water; 2) ozone water washing; 3) atomizing, spraying and washing; and 4) drying and discharging the cloth. According to the method, the strong oxidizing property of ozone is utilized, color development and auxochrome groups in unreacted dye molecules are efficiently destroyed, a better flooding removal effect is achieved, and the cleanliness and color fastness of the fabric are improved. Compared with a conventional water washing method, the water and electricity energy consumption can be greatly saved, and the use of chemical auxiliaries is remarkably reduced; and flooding dye molecules are degraded into colorless small molecules, so that the wastewater treatment difficulty is reduced, the treatment effect is improved, and remarkable environmental benefits are achieved.

The application discloses a structural color pressure-sensitive film based on a hollow polymer colloidal photonic crystal and a preparation method and application thereof, and belongs to the technical field of force-induced color-changing materials. The preparation method of the structural color pressure-sensitive film comprises the following steps: (1) uniformly dispersing core-shell nano colloidal particles in an organic solvent to obtain a colloidal particle dispersion liquid; the shell layer of the core-shell nano colloidal particles is a polymer material, and the core layer is an inorganic oxide; (2) coating the colloidal particle dispersion liquid on the surface of a flexible substrate, and obtaining a precursor photonic crystal film after heating; and after removing the core layer of the core-shell nano colloidal particles in the precursor photonic crystal film by acid treatment etching, the structural color pressure-sensitive film is obtained. The preparation method of the structural color pressure-sensitive film is simple, the conditions are mild, and no pigment dye molecules are needed; by utilizing the pressure deformation and shape memory characteristics of a single hollow polymer colloidal particle itself and the inherent structural color characteristics of a photonic crystal, the structural color pressure-sensitive film can realize the regulation and memory of rich and high-saturation structural colors under the action of pressure.

The invention discloses a bisazo blue reactive dye for high-temperature dip dyeing as well as a preparation method and application of the bisazo blue reactive dye. The reactive dye is shown in a structural general formula (I). A color body of the reactive dye is of a bisazo structure, the color body contains two naphthalene ring structures and a benzene ring structure, and an active group in a dye molecular structure is quaternary ammonium salt containing a nicotinic acid structure. According to the present invention, the binding force between the dye and the fiber can be improved through the coplanarity of the chromophore molecules, the dissociation between the dye and the fiber at the high temperature can be reduced, and the dye uptake of the dye at the high temperature can be improved, such that the fixation rate between the dye and the fiber can be improved; meanwhile, quaternary ammonium salt containing a nicotinic acid structure can react with fibers under the high-temperature neutral condition, an alkaline agent does not need to be added in the whole dyeing process, the problem of environmental pollution caused by the alkaline agent in the printing and dyeing wastewater is solved, and wide application prospects are achieved.

The invention relates to the field of dye chemistry, and discloses an acid dye with high color fastness, a preparation method of the acid dye and application of the acid dye in textile dyeing. According to the dye molecule, a 4-sulfo benzene ring and a 2, 5-dichlorobenzene ring are connected through an azo bridge (-N = N-), and a polysulfonate substituent group (-SO3Na) is introduced to a molecular skeleton to form a symmetric azo conjugated structure. The preparation method comprises the steps of nitration, reduction, sulfonation, diazotization, coupling and the like, the process conditions are mild, and the yield is stable. The obtained dye has a strong absorption peak in the range of 540-560nm, and the molar absorption coefficient epsilon is greater than or equal to 1.0 * 10 < 5 > L.mol <-1 >. Cm <-1 >. Compared with the conventional acid red dye, the dye has the advantages that the light fastness can reach grade 8, the fastness to washing is grade 7 or above, the color is bright, the color layer is uniform, the high dye-uptake can be realized under the low-salt condition, the conductivity of waste liquid is remarkably reduced, and the dye is suitable for dyeing protein fibers such as wool, nylon and silk.

The application belongs to the field of membrane separation technology, and provides a preparation method and application method of a two-dimensional MXene-conductive polymer layered separation membrane with adjustable pore size. The two-dimensional MXene-conductive polymer layered separation membrane is a two-dimensional MXene membrane prepared by vacuum-assisted filtration, and a conductive polymer monomer is embedded between the membrane layers, and then prepared by in-situ electrochemical polymerization. The advantages are that the preparation is simple and easy to operate, and no expensive equipment is needed. The conductive polymer in the membrane layer greatly improves the mechanical stability and oxidation resistance of the membrane structure, and the conductive performance and electrochemical capacitance characteristics are excellent. The membrane can be used as a desalination membrane and a conductive electrode at the same time, an electric potential can be applied to the membrane surface, the membrane pore size can be controlled by electrochemical regulation, and the selective separation of monovalent salt, divalent salt and dye molecules can be realized.

The invention discloses a viscosity-sensitive near-infrared two-region fluorescent probe, which can perform fluorescence imaging in a near-infrared II region, can lighten tumor tissues and distinguish normal tissues from tumor tissues based on viscosity response, and is used for in-vivo positioning of cancers. The invention further discloses a preparation method and application of the probe. The preparation method is easy to operate and mild in reaction condition. Compared with a clinical dye molecule ICG, the fluorescent probe disclosed by the invention has more excellent light stability and can be used for long-time in-vivo imaging of organisms. The emission wavelength of the fluorescent probe reaches an NIR-II region, so that the interference of a biological background fluorescent signal can be effectively reduced.

This invention discloses a molecularly switched adsorbent for adsorbing triphenylmethane dyes and its application, belonging to the field of wastewater treatment technology. The molecularly switched adsorbent proposed in this invention can rapidly remove triphenylmethane dyes such as crystal violet, malachite green, and methylene blue dyes from water; it can remove tens of ppm concentrations of crystal violet, malachite green, and methylene blue dyes from water in a very short time (90 min), with a removal rate of ≥92%. Moreover, this adsorbent can maintain a removal rate of ≥90% under a wide pH range (6-11) and high ion concentration conditions (1M). The activation and regeneration conditions of the adsorbent of this invention are mild; dye molecules can be removed by elution in a low-concentration alkaline solution only a few times. The adsorbent can be continuously recycled at least 10 times without significant attenuation of adsorption capacity.

The invention belongs to the crossing field of biomass utilization, environmental governance and energy, and relates to a preparation method and application of a lignin biochar adsorbent. Lignin is prepared by three different extraction methods, and six different lignin-based activated carbon (LAC) are prepared from the lignin and are used for adsorbing dyes in wastewater. The prepared LAC has a very good adsorption effect on dye molecules, the removal rate of MB and CR dyes reaches 100%, the MB adsorption capacity of DLC-CL-ZnCl2 at the temperature of 600 DEG C is 502.51 mg / g, and the CR adsorption capacity of DLC-CL-ZnCl2 at the temperature of 600 DEG C is 2073.14 mg / g; meanwhile, the prepared LAC has a high recycling rate, and after the LAC is recycled for 6 times, the LAC still keeps high adsorption performance.

The utility model belongs to the technical field of fluorescent dye detection, and particularly relates to fluorescent dye molecular synthesis detection equipment which comprises an equipment main body, a control panel is fixedly connected to the top of the equipment main body, U-shaped groove plates are fixedly connected to the two sides of the inner wall of the equipment main body, T-shaped plates are slidably connected to the inner walls of the U-shaped groove plates, and the T-shaped plates are fixedly connected to the top of the equipment main body. A placement cavity is formed in the top of the T-shaped plate, a handle is fixedly connected to the face, away from the equipment body, of the T-shaped plate, a molecule detector is fixedly connected to the top of the inner wall of the equipment body, and two telescopic devices are fixedly connected to the top of the inner wall of the equipment body. The fluorescent dye molecule synthesis detection equipment solves the problems that when the fluorescent dye molecule synthesis detection equipment is cleaned, fluorescent dye is attached to the inner wall of the placing cavity, so that the cleaning is not comprehensive, the next analysis results are inconsistent, and the accuracy of the detection result is influenced, so that the cleaning effect of the inner wall of the placing cavity is improved.

The invention relates to the technical field of color fixing agents, in particular to an efficient polyester color fixing agent and a preparation method and application thereof. The efficient polyester color fixing agent is prepared from the following components in percentage by weight: 20 to 40 percent of quaternary ammonium salt type cationic polymer, 5 to 15 percent of cross-linking agent, 2 to 8 percent of ultraviolet absorbent, 2 to 8 percent of penetrant, 0.5 to 3 percent of pH regulator and the balance of deionized water, the cross-linking agent is a polyfunctional group epoxy compound. According to the efficient polyester color fixing agent, the color fastness, especially the color fastness to washing and the color fastness to rubbing, of dyed polyester is remarkably improved through the electrostatic interaction of the cationic polymer and dye molecules and a three-dimensional network structure formed by the cross-linking agent, an ultraviolet light absorber is introduced into the cationic polymer through grafting reaction, and the color fastness to washing and the color fastness to rubbing are remarkably improved. The light fastness is obviously improved; tests show that the color fastness to washing can reach grade 4-5, the color fastness to rubbing can reach grade 4 or above in dry friction, and the color fastness to rubbing can reach grade 3-4 in wet friction.

The invention discloses a chinlon 6 filament based on high carboxyl modification and a preparation method thereof, and belongs to the technical field of chinlon production. The polyamide 6 filament based on high carboxyl modification is prepared by adopting PA6 slices with low-end amino groups and high-end carboxyl groups as raw materials, the ordered combining capacity of fibers and anionic dye is enhanced by reducing the content of the end amino groups and increasing the proportion of the end carboxyl groups, the dye is prevented from being accumulated on the surface, the dyeing uniformity and the dyeing permeability of the polyamide 6 filament are improved, and the dyeing quality of the polyamide 6 filament is improved. Meanwhile, the production parameter combination is precisely regulated and controlled, so that more microporous structures are reserved to adsorb the dye while the high viscosity of the high-carboxyl section is solved in the production process, and dye molecules are more easily diffused into the fiber; the prepared chinlon 6 filament based on high carboxyl modification realizes high-saturation and high-uniformity dyeing under low dye concentration, has ideal dye-uptake and fixation rate, and also has excellent dyeing effect on light-color sensitive colors, not only reduces the washing times after the chinlon filament is dyed, but also does not fade after being washed for multiple times.

The application discloses a short-process printing process of polyester-cotton blended fabric, which comprises screen printing by using active disperse dyes containing double active groups and steaming by using alcohol vapor; the double active groups include hydroxyethyl sulfone sulfate group and CH2CH(OH)CH2X (X is Br or Cl); the CH2CH(OH)CH2X can be converted into an epoxy group under alkaline conditions and can react with the alcohol vapor during the steaming process to realize the cross-linking between dye molecules, so that the effects of improving the fixation efficiency and shortening the process flow are achieved, and then the printed fabric with high color depth and high color fastness is obtained.

The invention relates to an azo blue dichroic dye compound and application thereof, and belongs to the technical field of organic optical materials. In order to solve the problem of insufficient thermal stability of the existing azo blue dichroic dye compound, the invention provides an azo blue dichroic dye compound with a structure as shown in a formula I, r1 and R4 are respectively and independently selected from C1-C6 saturated alkyl substituent groups, R2 represents-H, CH3 or-F, R3 represents hydrogen atoms or C1-C6 saturated alkyl substituent groups, and R2 and R3 cannot be hydrogen atoms at the same time. The molecular structure can effectively inhibit the risk of thermal isomerization of azo bonds, improves the stability of dye molecules in a high-temperature environment, and can be used for high-temperature application scenes such as vehicle-mounted sunroofs and the like.

The present application relates to the technical field of molecular sieve, in particular to a kind of molecular sieve self-assembly light response membrane and its preparation method and application.Utilize the supramolecular assembly based on dithiophene ethylene derivative and calabash urea as basic functional unit, after being coated on substrate, it is introduced into oil phase solution, and composite polyamide membrane is formed on substrate surface using interfacial polymerization reaction.Based on the host-guest recognition ability of dithiophene ethylene derivative and calabash urea, a dynamic adjustable recognition system is formed.Under light condition, the recognition ability of the whole system to molecule is influenced by changing the configuration of molecule.The self-assembly light response membrane has good dye interception effect and small cut-off molecular weight, and can realize accurate screening of similar molecular weight dye molecules, and is expected to be widely applied in wastewater treatment field.

The invention discloses a preparation method and application of a metal-organic dye adsorbent based on sulfonyl calixarene, Ni (II) is used as a metal node, and the metal-organic dye adsorbent is prepared through a solvothermal directional assembly strategy by utilizing the synergistic coordination effect of a dicarboxylic acid ligand 4, 4 '-dithiobisbenzoic acid and p-tert-butylsulfonyl calix [4] arene (H4TBSC). The sulfonyl calixarene-based structure metal-organic dye adsorbent with definite inner and outer cavity partitions is successfully constructed. The adsorption material comprises a central large cavity and two symmetrically distributed peripheral cavities, and the special structure enables the adsorption material to show excellent selective adsorption performance on Congo red (CR) dye molecules. And efficient separation of a Congo red / rhodamine B (RhB) mixed system can be realized through a molecular size screening effect. The invention provides a new thought and method for developing a multifunctional supramolecular adsorption material based on dynamic coordination engineering, and has a wide application prospect in the fields of dye separation and wastewater treatment.

The invention discloses a covalent organic framework membrane with an asymmetric structure as well as a preparation method and application thereof, and the preparation method comprises the following steps: preparing a trialdehyde phloroglucinol solution as an aldehyde solution, preparing a 2, 5-diaminobenzene sulfonic acid solution as an amine solution, and dripping the aldehyde solution into the amine solution under stirring to obtain a COF nanosheet mixed solution; diluting with deionized water to obtain a diluent, and dialyzing to obtain a COF nanosheet dispersion liquid; adding the COF nanosheet dispersion liquid into ethanol to obtain a second dispersion liquid; carrying out vacuum filtration on the second dispersion liquid to deposit the COF nanosheets on the nylon base membrane, and drying to obtain a Primary COF membrane; carrying out vacuum filtration on a gamma-cyclodextrin aqueous solution, depositing gamma-cyclodextrin on a Primary COF membrane, and drying to obtain a covalent organic framework membrane with an asymmetric structure; through a mixed solution nanofiltration test experiment, the membrane disclosed by the invention has the capability of separating dye molecules and salt ions in salt-containing wastewater or dye-containing wastewater.

The invention belongs to the technical field of textile dyeing and finishing assistants, and discloses a high-efficiency level dyeing assistant for dyeing and finishing and a preparation method thereof, the assistant is formed by assembling an amphiphilic block copolymer and a dynamic reversible covalent bond polymer, the block copolymer has hydrophilic and oleophylic sections, nano-scale micelles are formed through self-assembly, and the nano-scale micelles are uniformly dispersed in the dynamic reversible covalent bond polymer. Dye molecules can be efficiently captured, slowly released and stably dispersed; a reversible ketoxime bond is introduced into a main chain of the dynamic polymer to form a cross-linked network with micelles, so that the assistant keeps a stable structure under a dyeing condition; after dyeing and finishing are finished, reversible bond breakage is triggered through acid-base adjustment or reducing agent treatment, micelles are rapidly depolymerized, and the auxiliaries are recycled and can be repeatedly used; the auxiliary agent can significantly improve the uniform dispersion of dye in dye liquor and the color consistency of fabric, enhance the color fastness, reduce the dosage of the auxiliary agent and reduce the wastewater treatment load, and has good environmental protection and cyclic utilization performance.

This invention relates to a lysosome-targeting fluorescent dye based on the BODIPY structure and its synthesis method, belonging to the field of organic fluorescent dyes. The invention designs and synthesizes the lysosome-targeting fluorescent dye BDP. The dye molecule uses BODIPY as the parent structure, and a novel lysosome-targeting fluorescent dye molecule is synthesized by introducing diphenylphosphine salt and tert-butyloxycarbonyl groups. The synthetic route of this dye is simple, it possesses excellent photostability, and exhibits good resistance to interference from ions, amino acids, and viscosity. Furthermore, this dye demonstrates superior fluorescence performance in a variety of common solvents, with fluorescence quantum yields exceeding 0.70. Experimental results show that this fluorescent dye can precisely target lysosomes in living cells, demonstrating promising applications in the field of bioimaging.

The invention discloses an ABS (Acrylonitrile Butadiene Styrene) composite material as well as a preparation method and application thereof. The ABS composite material is prepared from the following components in parts by weight: 87 to 99 parts of ABS resin, 0.5 to 5 parts of lanthanide oxide, 0.5 to 5 parts of liquid crystal polymer, 0.1 to 0.5 part of carbon nano tube, nano zinc oxide, organic dye molecules and a carbon-based nano material, the mass ratio of the nano zinc oxide to the organic dye molecules to the carbon-based nano material is (2-4): (3-5): (2-4); the total dosage of the nano zinc oxide, the organic dye molecules and the carbon-based nano material is 3-7 parts. According to the ABS composite material provided by the invention, the time required by laser marking is shortened, the definition of laser marking is improved, and the carbonization or yellowing phenomenon caused by local overheating of the surface of the material is avoided.

This invention relates to a liquid crystal electrically controlled reflector capable of breaking the reflectivity limit, comprising, from front to back, a first liquid crystal device, a second liquid crystal device, a first reflective polarizer, and a second reflective polarizer. The main body of the first liquid crystal device is a first liquid crystal cell sandwiched with a first liquid crystal layer. The first liquid crystal layer is composed of negative liquid crystal doped with dichroic dyes. In its natural state, the negative liquid crystal molecules and the dichroic dye molecules are perpendicularly aligned, while in the driven state, the negative liquid crystal molecules drive the dichroic dye molecules to deflect along a second axis. The second liquid crystal device has a 90° optical rotation function in its natural state, but no optical rotation function in the driven state. This invention not only achieves efficient reflection of two beams of orthogonally polarized states simultaneously in its high-reflectivity operating mode, significantly improving the overall reflectivity, but also reduces the reflectivity to a minimum level in its low-reflectivity operating mode.