175 results about "Optical brightener" patented technology

The present disclosure provides a unit dose product comprising a pouch formed from a water-soluble film material; and a detergent composition comprising about 5 to about 20 wt % water, about 25 to about 65 wt % of at least one surfactant, at least one amino acid or a salt thereof, a base other than monoethanolamine (MEA) or triethanolamine (TEA), and a non-aqueous solvent, wherein the detergent composition is disposed within the pouch. The composition can further comprise additional components, such as an anti-redeposition agent, an enzyme, a bleaching agent, a bleach activator, a chelating agent, an additional chlorine scavenger, a biocide, an optical brightener, a bitterant, a corrosion inhibitor, or any combination thereof. The detergent composition in the unit dose product can scavenge chlorine to a concentration of 0 ppm in less than about 60 sec after contact with a 1 L water sample comprising up to 4 ppm chlorine.

The present disclosure provides a unit dose product comprising a pouch formed from a water-soluble film material and a detergent composition disposed within the pouch. The detergent composition comprises about 5 to about 25 wt % water, about 20 to about 40 wt % of at least one surfactant, about 35 to about 55 wt % non-aqueous solvent comprising polyethylene glycol and glycerin, and at least one enzyme. A pack height of the unit dose does not decrease by more than about 30% over a temperature range of 0° F. to 125° F., and a Zein score of the detergent composition is not more than about 1.5% dissolved zein when tested on a 3% dilution. The composition can further comprise additional components, such as base, performance polymer, an anti-redeposition agent, a defoamer, a bleaching agent, a bleach activator, a chelating agent, an optical brightener, a bitterant, a corrosion inhibitor, or any combination thereof.

The present invention discloses a wear-resistant and tear-resistant polyamide elastomer composition and a preparation method and application thereof, and belongs to the technical field of modified materials. The wear-resistant and tear-resistant polyamide elastomer composition is prepared by weight from 87.1 to 95.9 parts of polyamide elastomer, 3 to 10 parts of wear-resistant agent, 0.2 to 1 part of cross-linking agent, 0.4 to 1 part of antioxidant, 0.1 to 0.6 parts of nucleating agent, 0.2 to 0.6 parts of dispersant, 0 to 2 parts of masterbatch, and 0 to 0.01 parts of fluorescent brightener. The present invention adopts polyamide elastomer as a substrate, and generates a cross-linking structure through a trifunctional cross-linking agent and an amide bond and / or an end group (amino, carboxyl, hydroxyl) in a polyamide elastomer molecular chain to improve the tear strength of the composition, and adds a polymer wear-resistant agent (PTFE and / or POM powder) to improve the wear resistance and resilience of the composition, so that the badminton racket line nails prepared by the composition of the present invention have playability and durability.

The invention relates to the technical field of grinding, in particular to a fluorescent whitening agent grinding device which comprises a fluorescent particle grinding machine shell. According to the fluorescent particle grinding machine, fluorescent whitening agent particles going to enter the fluorescent particle grinding machine shell can be hammered, so that the structural stability of the fluorescent whitening agent particles is destroyed, and a fluorescent whitening agent can be poured into a fluorescent whitening agent storage tank in a sealed environment through a sealed filling mechanism; according to the technical scheme, the fluorescent whitening agent can be prevented from drifting to the outside in the filling process, and meanwhile, the abrasion of the grinding disc during friction between the grinding disc and fluorescent whitening agent particles can be reduced; the grinding device for the fluorescent whitening agent solves the problems that a grinding disc used for grinding the fluorescent whitening agent is gradually abraded along with the increase of the service time of the grinding device for the fluorescent whitening agent, and part of the fluorescent whitening agent drifts into the air in the process that the ground fluorescent whitening agent is poured into a packaging tin or a packaging bag.

The present disclosure provides a unit dose product comprising a pouch formed from a water-soluble film material and a detergent composition disposed within the pouch. The detergent composition comprises about 5 to about 25 wt % water, about 20 to about 40 wt % of at least one surfactant, about 35 to about 55 wt % non-aqueous solvent comprising polyethylene glycol and glycerin, and no enzyme, wherein a percent swelling is not more than about 30% in a 24 hr test. The composition can further comprise additional components, such as a base, a performance polymer, an anti-redeposition agent, a defoamer, a bleaching agent, a bleach activator, a chelating agent, an optical brightener, a bitterant, a corrosion inhibitor, or any combination thereof. The detergent composition comprises surfactants with improved mildness and solvents with lower allergic components.

The invention relates to a PDLC (polymer dispersed liquid crystal) dimming film capable of displaying patterns in an electric control manner and a laser etching preparation method of the PDLC dimming film. The PDLC dimming film comprises a first substrate layer, a first conductive layer, a first orientation layer, a polymer dispersed liquid crystal layer, a second orientation layer, a second conductive layer and a second substrate layer which are sequentially stacked, the first substrate layer and the first conductive layer protrude at the first side end of the PDLC dimming film to form a first protruding part, and the second substrate layer and the second conductive layer protrude at the second side end of the PDLC dimming film to form a second protruding part; the first conductive layer and the second conductive layer are correspondingly and respectively provided with at least two parting lines extending from the first side end of the PDLC dimming film to the second side end of the PDLC dimming film; the first electrode is arranged between at least two adjacent segmentation lines on the first conductive layer of the first protruding part, and the second electrode is arranged between at least two adjacent segmentation lines on the second conductive layer of the second protruding part; the first alignment layer and the second alignment layer each contain a fluorescent whitening agent. The PDLC dimming film can save electricity and improve permeability.

The invention relates to a fluorescent whitening agent, in particular to a stilbene biphenyl fluorescent whitening agent and a preparation method thereof. The stilbene biphenyl fluorescent whitening agent is a crystal represented by a formula (1), and contains crystal water or an isomer. The fluorescent whitening agent CBS provided by the invention comprises rod-shaped, needle-shaped and lamellar crystal forms. In the invention, all crystal forms are measured by adopting an X-ray diffractometer, and the water content is precisely measured by adopting a KarlFischer titration method. The X-ray scanning spectrum peak attributions of the crystal samples obtained by different preparation methods have significant difference. # imgabs0 #

The present disclosure provides a unit dose product comprising a pouch formed from a water-soluble film material; and a detergent composition disposed within the pouch that comprises about 5 to about 20 wt % water, about 35 to about 65 wt % of at least two surfactants, and a non-aqueous solvent. The at least two surfactants comprise methyl ester ethoxylate (MEE) and a linear alkylbenzene sulfonate (LAS), and at least one of an alkyl ether sulfate (AES) and a non-ionic alcohol ethoxylate (AE). The composition can further comprise additional components, such as a base, a performance polymer, an anti-redeposition agent, an enzyme, a bleaching agent, a bleach activator, a chelating agent, an optical brightener, a bitterant, a corrosion inhibitor, or a combination thereof. The detergent composition comprises surfactants with improved mildness and solvents with lower allergic components.

The present disclosure provides a detergent composition comprising about 10 to about 25 wt % water, about 20 to about 40 wt % of at least one surfactant, and about 30 to about 60 wt % of a non-aqueous solvent comprising glycerin and a non-reducing sugar, wherein the water activity is less than 0.8, and the detergent composition has a pH of about 8 to 11. The detergent composition can further comprise additional components, such as an acid, a base, an enzyme, an anti-redeposition agent, a performance polymer, a defoamer, a chelating agent, a chlorine scavenger, an optical brightener, a corrosion inhibitor, and any combination thereof. The detergent composition comprises surfactants with improved mildness and self sustaining solvents with reduced allergic components.

The invention discloses a fluorescent whitening agent with high dispersion stability, a preparation method and an application method, and belongs to the technical field of textile printing and dyeing. The invention introduces a fluorescent whitening agent with the characteristics of small particle size, high stability, strong whitening ability and the like. The fluorescent whitening agent is a dispersion liquid composed of a whitening agent filter cake, a dispersing agent, a solvent, a thickening agent, water and the like. The whitening agent is applied to whitening processing of polyester and blended fabrics thereof, and can show higher whiteness under the condition of lower dosage; and even under the condition that a leveling agent is not added, a uniform whitening effect can be obtained, fluorescent spots or yellow spots are not formed, and high-quality whitened fabric can be obtained.

The invention belongs to the technical field of detergents, and particularly relates to a preparation method of a composite fluorescent whitening agent. The method comprises an acylation reaction, a sulfonation reaction, a carbonyl reduction reaction, a dehydration reaction and a sulfonic acid salification reaction. Compared with a commercially available fluorescent whitening agent such as CBS, the composite fluorescent whitening agent synthesized by the preparation method disclosed by the invention has similar application effects, but the preparation process disclosed by the invention is simple, low in cost, environment-friendly in route and environment-friendly in working environment.

The present disclosure provides a unit dose product comprising a pouch formed from a water-soluble film material; and a detergent composition comprising about 5 to about 20 wt % water, about 35 to about 65 wt % of at least one surfactant, and a non-aqueous solvent, wherein the detergent composition is disposed within the pouch. The composition can further comprise additional components, such as a base, a performance polymer, an anti-redeposition agent, an enzyme, a bleaching agent, a bleach activator, a chelating agent, an optical brightener, a bitterant, a corrosion inhibitor, or a combination thereof. The detergent composition comprises surfactants with improved mildness and solvents with lower allergic components.

The invention discloses a spore fluorescent staining solution and application thereof. The fluorescent whitening agent 220 is used for detecting spores; the spore fluorescent staining solution provided by the invention comprises a fluorescent whitening agent 220. The spore fluorescent staining solution disclosed by the invention is simple in component, low in cost, capable of accurately detecting spores in a sample to be detected, low in toxicity and small in influence on the environment; the detection method disclosed by the invention is simple and convenient to operate and rapid in determination and can be completed by one-step operation.

The invention relates to a bright-color gradient-color safety belt and a production process thereof, and relates to the technical field of fabric production processes, and the bright-color gradient-color safety belt comprises a gradient-color woven belt and a color optimization finishing agent, the color optimization finishing agent comprises the following components in parts by mass: 20-30 parts of nano disperse dye, 10-15 parts of an ultraviolet light absorber, 5-10 parts of mesoporous silica, 15-20 parts of a color fixing agent, 5-8 parts of an organic silicon softening agent, 2-4 parts of a fluorescent whitening agent, 1-2 parts of a pH buffering agent and 30-40 parts of a solvent. The production process comprises the following steps: weaving more than two yarns with different colors to obtain a gradient yarn-dyed woven belt; the preparation method comprises the following steps: removing impurities, flattening to obtain a treated braid, padding the treated braid in a color optimization finishing agent, washing with water, fixing color, shaping in cold water, drying after treatment, packaging and storing to obtain the gradient color safety belt with bright color. The gradient color safety belt has the effect of improving the optical performance, the color fastness and the structural stability of the gradient color safety belt, and has a good safety protection function and durability.

Fluorescent whitening agents (FWA) or optical brighteners based on bicyclic heterocyclic compounds (I) and (II) are suitable for use in consumer products: Wherein the variables are as defined in claim

The present disclosure provides a detergent composition comprising about 20 to about 35 wt % water, about 20 to about 40 wt % of at least one surfactant, about 25 to about 45 wt % of a non-aqueous solvent comprising glycerin, and at least one enzyme, wherein the water activity is less than 0.8, and the detergent composition has a pH of about 5 to 7.7. The detergent composition can further comprise additional components, such as a base, a performance polymer, an anti-redeposition agent, a chelating agent, an optical brightener, a corrosion inhibitor, or any combination thereof. The detergent composition comprises surfactants with improved mildness and solvents with reduced allergic components.

The invention relates to a fluorescent whitening agent for absorbing sunlight ultraviolet rays and a preparation method and application thereof, and the structural formula is as follows: # imgabs0: a method for dissolving 2, 5-dihydroxy dimethyl terephthalate in N, N-dimethylformamide, adding potassium carbonate and bromo-isobutane, heating to 80 DEG C, and stirring to react for 10 hours; adding an extracting solution ethyl acetate and water, extracting, drying an organic phase by using a drying agent, filtering, and carrying out reduced-pressure rotary evaporation concentration to obtain a crude product; and performing column chromatography on the crude product to obtain the fluorescent whitening agent A. The fluorescent whitening agent is applied to a whitening process for papermaking, textile printing and dyeing or plastic processing. The structure is relatively simple, the preparation method is easy, and the material has excellent ultraviolet absorption and fluorescence emission performance.

A UV / HEVL filterable SiHy contact lens is described herein that not only has a relatively high UV / HEVL filterability but also has an aesthetically attractive color. Bulk siloxane hydrogels for UV / HEVL filterable SiHy contact lenses comprise repeating units of (1) at least one hydrophilic ethylene monomer, (2) at least one siloxane-containing ethylene monomer and / or at least one polysiloxane ethylene crosslinking agent, (3) at least one UV-absorbing ethylene monomer, (4) at least one crosslinking agent, and (5) at least one crosslinking agent. And (4) at least one polymerizable HEVL-absorbing compound capable of absorbing HEVL between 380 nm and 450 nm, and further comprising at least one blue colorant and at least one optical brightener distributed in the bulk siloxane hydrogel.

The utility model discloses a granulating mechanism for processing a water-soluble polymerization type fluorescent whitening agent, which relates to the technical field of fluorescent whitening agent processing and comprises a support, a post-processing mechanism is fixedly mounted at the front end of the support and comprises a driving component, a mounting frame, a water-soluble polymerization type water-soluble polymerization type water-soluble polymerization type water-soluble polymerization type water-soluble polymerization type water-soluble polymerization type water-soluble polymerization type water-soluble polymerization type water-soluble polymerization type water-soluble polymerization type water-soluble polymerization type water-soluble polymerization type water-soluble polymerization type water A motor is fixedly mounted on the front wall of the mounting frame and enables a first bevel gear to rotate through a transmission shaft, an n-shaped rod is connected to the axis position of the first bevel gear, a connecting shaft rotationally connected with the inner wall of the mounting frame is fixed to the other end of the n-shaped rod, and a movable shaft rod is rotationally connected to the top end of the n-shaped rod. The screening and filtering assembly is arranged on the inner side of the support and used for screening fluorescent whitening agent particles, and the problems that in the prior art, although some devices capable of conducting screening treatment exist, the screening technology and the drying technology are mostly separated, the processing period is long, and the device cost is high are solved.

The invention discloses a preparation method of a thin coating type protective adhesive, the thin coating type protective adhesive and a protective film. The preparation method comprises the following steps: (1) pre-dispersing 0.1-1 part by mass of nano fumed silica, 0.1-0.5 part by mass of a fluorescent whitening agent and 50-80 parts by mass of solvent oil; and (2) sequentially adding 0.01 to 0.04 part by mass of a platinum catalyst, 2 to 7 parts by mass of vinyl-polyhedral oligomeric silsesquioxane and 20 to 50 parts by mass of hydrogen-terminated silicone oil. According to the scheme, the ultrathin coating can be formed while the surfaces, corners, curved surfaces and welding spots of components are completely covered, and the hydrophobic performance, the insulating performance, the environmental protection performance and the safety performance of the coating are effectively ensured.

The utility model relates to the technical field of chemical equipment, and discloses a fluorescent whitening agent crystallization kettle temperature control device which comprises a stirring mechanism, and a cooling mechanism is arranged on the right side of the stirring mechanism; the stirring mechanism comprises a crystallization kettle body, a rotating rod is rotatably connected to the interior of the crystallization kettle body, a motor is fixedly connected to the top of the rotating rod, a connecting ring is fixedly connected to the outer side of the rotating rod, stirring blades are fixedly connected to the outer side of the connecting ring, and connecting rods are fixedly connected to the left side and the right side of the rotating rod; the outer side of the connecting rod is fixedly connected with a supporting ring, and the outer side of the supporting ring is fixedly connected with a scraping plate and a guide plate. According to the temperature control device for the fluorescent whitening agent crystallization kettle, by arranging the connecting rings and the stirring blades and utilizing the auxiliary effect of the scraping plate and the guide plate, it is guaranteed that fluorescent whitening agent raw materials are evenly mixed and efficiently stirred in the crystallization kettle body, the production efficiency is improved, and raw material waste is reduced.

The invention discloses a degradable plastic quality release and demolding residue traceability management method, and relates to the technical field of quality release traceability, and the method comprises the following steps: 1, doping a fluorescent whitening agent European in a polylactic acid matrix to form an inner channel, attaching a polyvinyl alcohol witness sheet to the edge of a cavity, and presetting riboflavin to form an outer channel, establishing a dual-channel ultraviolet detection position; 2, collecting two paths of intensity, calculating a ratio coefficient, and establishing mapping with surface residues to form red, yellow and green threshold values and a correction list; 3, a workpiece is judged through a black box, spray volume, wind shear and mold temperature instructions are automatically given, a witness piece is separated from warm water and confirmed through a background, and meanwhile a cavity-level demolding event is generated and bound with the digital link two-dimensional bar code; and step four, third-party compliance files are archived in a ticket-folder manner with quantiles as reference to a reconvergence threshold value, so that mold-crossing and line-crossing consistent release and verifiable traceability are realized, and food contact and compostable boundaries are considered. And the release efficiency and stability are improved.

The application discloses a preparation method of a nano TiO2 composite fluorescent whitening agent and relates to the technical field of fluorescent whitening agents. The method comprises the following steps: firstly, one-time condensation is carried out on cyanuric chloride and 4,4'-diamino-stilbene-2,2'-disulfonic acid; secondly, secondary condensation is carried out on diethanolamine, and quaternary ammonium is formed by using epichlorohydrin in the secondary condensation process; finally, tertiary condensation is carried out on amino nanoparticles, so that the nano TiO2 composite fluorescent whitening agent is obtained. The nano TiO2 composite fluorescent whitening agent prepared by the application has the characteristics of good ultraviolet aging resistance and water solubility.

The utility model discloses a mixing and dispersing device for producing a fluorescent whitening agent, which comprises a shell, a first motor is arranged at the top of the shell, the first motor is connected with a stirring rod, and the stirring rod penetrates through the shell and extends into the shell; the lower end of the stirring rod is connected with a stirring piece; a first air channel is formed in the stirring rod, a second air channel is formed in the stirring part, the first air channel is communicated with the second air channel, the first air channel is connected with a ventilation pipe, the stirring part is provided with a plurality of air holes, and air in the second air channel is exhausted from the air holes; a powder adding mechanism is arranged on one side of the first motor and connected with the top wall of the shell. The powder adding mechanism comprises a discharging pipe, the discharging pipe is connected with a conveying pipe, the conveying pipe is connected with a material guiding pipe, and the other end of the material guiding pipe is arranged in the shell; and water vapor is prevented from being condensed at the discharging opening and adhered to powder, and the mixing and dispersing effects are better.

The utility model relates to the technical field of fluorescent whitening agent processing, and discloses a fluorescent whitening agent crystal dehydration device, which comprises a main body structure and a purification structure, the purification structure is arranged on the outer wall of the main body structure, the main body structure comprises a shell, the inner wall of the shell is fixedly connected with a partition plate, and the partition plate is fixedly connected with the purification structure. The interior of the shell is divided into a power chamber and a dewatering chamber through the partition plate, fluorescent whitening agent crystals are put into the dewatering cylinder through the feeding pipe, the driving motor is started to enable the first rotating wheel to rotate, the rotating first rotating wheel drives the second rotating wheel to rotate through the crawler belt and drives the rotating shaft to rotate at the same time, and the rotating shaft drives the dewatering cylinder to rotate. According to the fluorescent whitening agent dehydration device, the dehydration barrel generates centrifugal force to dehydrate fluorescent whitening agent crystals, in the dehydration process, a small part of crystals thrown out along with water are separated from sewage through the filter plate, after dehydration is completed, the sealing door is opened, the filter plate is pulled out, the thrown-out crystals are collected, cost is saved, and crystal waste is avoided.

The application discloses a fluorescent whitening functional auxiliary and a production process thereof, and relates to the technical field of functional dyes. The fluorescent whitening functional auxiliary comprises the following raw materials in parts by weight: 35-45 parts of a fluorescent whitening agent, 8-10 parts of gamma-cyclodextrin, 4-6 parts of a pH buffer, 2-3 parts of a dispersing agent, and 50-70 parts of deionized water. In the application, L-cysteine is reacted with 2-methyl-2-propenoic acid-2,2,6,6-tetramethyl-4-piperidyl ester to generate a sulfide compound, 4,4'-diaminostilbene-2,2'-disulfonic acid is reacted with cyanuric chloride to generate a monosubstituted compound, the monosubstituted compound is reacted with 7-hydroxy-4-methylcoumarin to generate a disubstituted compound, and the disubstituted compound is reacted with the sulfide compound to generate the fluorescent whitening agent. The fluorescent whitening functional auxiliary prepared in the application has excellent dispersibility, stability and anti-aging performance.

Use of compounds of formula (II) as fluorescent whitening agents or optical brighteners; wherein the compounds of formula (II) have the structure: wherein Y and R are as defined in claim 1. Also sh

The invention discloses an acid-resistant efficient whitening agent for cotton, which contains 0-20% of a fluorescent whitening agent C.I.220; 0 to 20% of a fluorescent whitening agent C.I.47; 0-70% of anhydrous sodium sulphate; 0 to 0.10% of disperse violet RL; and 0 to 0.10% of disperse blue BGL. The components of the screened whitening agent are two tetrasulfonic acid whitening agents which are compounded, and proper dyes are added, so that the whiteness can be improved by 17 CIE value, the same whiteness or higher whiteness can be achieved by using fewer whitening agents, and the effects of reducing cost and improving efficiency are achieved.

A resin based material whose composition includes a light-curable mixture of monomers of no more than 35 wt. % of an ethoxylated difunctional bisphenol A dimethacrylate; of no more than 10 wt. % of a methacrylate monomer; of no more than 10 wt. % of a difunctional urethane acrylate; of no more than 0.1 wt. % of an optical brightener; of no more than 5 wt. % of silica particles having methacrylate functionalization layers and having an average particle size of less than about 200 nm; of having more than 40 wt. % of an inert glass; of no more than 15 wt. % of a heavy metal oxide; of no more than 2.5 wt. % of an ultraviolet / visible (UV / Vis) light-photo-polymerization initiator; a colorant; and a stabilizer.

This invention belongs to the field of polymer material additives, and provides a fluorescent whitening agent anti-migration stabilizing excipient and its preparation method. The method involves intercalating 4,4'-bis(2-sulfonate sodium styryl)biphenyl into a zinc-aluminum layered double hydroxide, and then surface-coating it with ethanolamine-modified polypropylene grafted with maleic anhydride compatible components. This is followed by melt granulation with a polypropylene carrier resin, bis(2,2,6,6-tetramethyl-4-piperidinyl) sebacate, and 2-(2H-benzotriazol-2-yl)-4,6-di-tert-amylphenol. This achieves low migration, high retention, and stable dispersion of the fluorescent whitening agent, solving the problems of easy migration, insufficient thermo-photoaging stability, and difficulty in balancing processing window and toughness in polypropylene systems. This method is suitable for the industrial preparation and application of polypropylene whitening modified materials.