123 results about "Whitening Agents" patented technology

The present application relates to the technical field of resin, and relates to a preparation method of high-whiteness resin, respectively preparing mesoporous SiO2@Eu 3+ The two whitening agents are mixed in a weight ratio of 1:1 to 1:4, surface modification is carried out, and then the whitening agents are melt-blended with a resin matrix; an intelligent control system is used to real-time regulate process parameters, so that the whiteness is greater than or equal to 96, and the thermal decomposition temperature is greater than or equal to 380 DEG C; the present application realizes the synergistic effect of the mesoporous SiO2@Eu 3+ The whitening agent and the TiO2 photonic crystal whitening agent synergistically act, and surface modification is carried out by using a silane coupling agent, so that the whitening agent is uniformly and stably dispersed in the resin matrix, the whiteness of the resin product is greater than or equal to 96, the risk of yellowing is reduced, and the visual appearance quality of the resin product is greatly improved.

This invention discloses a firming and wrinkle-reducing eye cream, comprising a moisturizer, a whitening agent, a skin repair additive composition, a thickener, a preservative, a film-forming agent, a skin moisturizer, and a surfactant. The weight ratio of the moisturizer, whitening agent, anti-aging additive composition, thickener, preservative, film-forming agent, skin moisturizer, and surfactant is 20:1:2:3:0.3:0.5:1:0.2. The moisturizer includes butylene glycol, glycerin, polydimethylsiloxane, and hydrogenated polyisobutylene. The skin-repairing additive composition includes hydroxypropyl tetrahydropyranotriol, adenosine, cell growth factors, ceramides, and salicylic acid, comprising olefins, betaine, trehalose, 1,2-hexanediol, hydrogenated lecithin, allantoin, and Euglena galactosides. The film-forming agents include polyacrylamide, cyclohexylsiloxane, and polydimethylsiloxane alcohol. The emollients include C13-14 isoparaffins, polydimethylsiloxane / vinyl dimethylsiloxane crosspolymers, and cyclopentamethoxysiloxane. This invention can repair cells and provide long-lasting anti-wrinkle and whitening protection for the corners of the eyes.

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 iris tectorum essential oil with antioxidant and whitening effects for cosmetics as well as a preparation method and application of the iris tectorum essential oil. The aged iris rhizome is selected as an extraction material, and a supercritical carbon dioxide extraction method without adding an entrainer is adopted as an extraction method, so that the prepared iris essential oil has excellent antioxidant and whitening effects; meanwhile, by optimizing the aging year and the use concentration of the iris essential oil in cosmetics, the anti-oxidation and whitening effects of the iris essential oil are further improved, so that the iris essential oil has the potential of being developed into a natural anti-oxidation and whitening agent.

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 present invention relates to a film and a capsule which do not contain titanium oxide and which have light-blocking properties and improved mechanical strength. The film and capsule are produced using a composition comprising a film-forming polymer and a whitening agent. The film-forming polymer is selected from the group consisting of cellulose derivatives, gelatin, and pullulan. The whitening agent comprises a salt and a surfactant, wherein the salt is sodium sulfate or a combination of sodium sulfate and a white pigment, wherein the white pigment is not titanium dioxide. The light-blocking film and capsule having improved mechanical strength are obtained by molding the composition into a film and a capsule, respectively, and then drying the film and capsule at 55°C or lower.

The application belongs to the technical field of biological materials, and specifically discloses an amino acid whitening polypeptide and a preparation method thereof. The structural general formula of the polypeptide is as follows: R-A-B-NH2, wherein R is a modified acyl group serving as an N terminal and having a carbon number ranging from 6 to 10, A is D-proline and a derivative thereof, and B is D-arginine and a derivative thereof. The amino whitening polypeptide is prepared by using an Fmoc solid-phase synthesis method. The whitening polypeptide has excellent melanin synthesis inhibition activity, and plays a role by targeting inhibition of TRP-1. At a concentration of 1 μM, the melanin synthesis inhibition rate of B16 cells reaches a statistically significant standard, which is significantly better than a conventional whitening agent that can only achieve a similar inhibition effect at a high concentration, and greatly reduces the effective use concentration of a whitening product.

The invention discloses a cellulose diacetate tube and a melt extrusion formula, method and application thereof. The cellulose diacetate tube comprises cellulose diacetate, glycerol triacetate, polyethylene glycol, an antioxidant and a whitening agent. The cellulose diacetate tube is prepared from 50-80 parts by mass of cellulose diacetate, 10-30 parts by mass of glycerol triacetate, 5-30 parts by mass of polyethylene glycol, 0.1-2 parts by mass of an antioxidant and 0.1-5 parts by mass of a whitening agent. The cellulose diacetate tube prepared from the formula, the method and the application can meet the whiteness and hardness standards of filter tubes for cigarettes.

A gum-protecting teeth whitening strip comprising 0.5-30 parts polyacrylic copolymer for gelling and sealing, 10-50 parts water, 0.1-15 parts whitening agent, 0.01-2 parts pH regulator, 0.01-3 parts s

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

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.

To appropriately set gamma correction characteristics for paper to which a fluorescent whitening agent is added.SOLUTION: The image data acquisition unit 21 acquires first image data obtained by reading the chart on the reference paper and acquires second image data obtained by reading the chart on the target paper. The gradation correction processing unit 22 (a) specifies the gradation characteristic of the target sheet based on the second image data, (b) specifies the correction target range based on the density gradient in the gradation characteristic, and (c) corrects the correction target range in the gradation characteristic of the target sheet based on the gradation characteristic of the reference sheet based on the first image data. The correction characteristic setting unit 23 sets the gamma correction characteristic for the target paper on the basis of the gradation characteristic for the target paper after the correction target range is corrected. The target paper contains a larger amount of the fluorescent brightener than the reference paper.SELECTED DRAWING: Figure 1

This invention provides a coating composition, a component, a method for manufacturing the component, and its application. The coating composition of this invention comprises: 20-80 parts by weight of Ulan tea crystal, 2.5-25 parts by weight of cement, 2.5-40 parts by weight of sand, and 0.1-10 parts by weight of whitening agent. According to the coating composition of this invention, by adding Ulan tea crystal as a new material as the main component to the coating composition formula, the obtained coating material, upon testing, exhibits excellent negative oxygen ion release performance, as well as excellent antibacterial function and far-infrared emission performance, thus possessing excellent health-preserving functions.

The utility model discloses a fluorescent whitening agent synthetic device convenient to discharge, including synthetic cylinder, the bottom of synthetic cylinder is conically arranged, the bottom center of synthetic cylinder is fixedly connected with the discharge cylinder perpendicularly, and the inner wall of synthetic cylinder is sleeved with the fixed ring, and the inside center of synthetic cylinder is fixedly connected with the inner tube perpendicularly, and the inner tube is arranged at the bottom of fixed ring, and the inner tube is rotatably connected with the auger, and the auger is arranged in the inner portion of discharge cylinder, and the rotating mechanism of rotating auger is arranged in the inner portion of synthetic cylinder, and the stirring mechanism is arranged in the inner portion of synthetic cylinder, and the outer surface of synthetic cylinder is sleeved with the support ring, and the surface of support ring is fixedly connected with a plurality of support legs perpendicularly. The utility model discloses a setting, can be convenient for the material that needs mixing in the inside of synthetic cylinder to be transported upward through the inner tube when using, is convenient for the inside of synthetic cylinder to turn over material, and the setting of two stirring rods is also matched, and the mixing effect of material is also improved, and the auger reverse rotation is also convenient for the material in the inside of synthetic cylinder to be discharged.

This invention discloses a polyamide composition comprising, by weight, the following components: 50 parts polyamide resin; 1-10 parts silica-coated zinc sulfide; 20-50 parts ethylene-methacrylate ionomer; and 0.002-0.020 times the weight of the ethylene-methacrylate ionomer as a benzofuranone carbon radical scavenger. This invention, by using silica-coated zinc sulfide as a whitening agent and employing a benzofuranone carbon radical scavenger, significantly improves color stability, as both the silica-coated zinc sulfide and the benzofuranone carbon radical scavenger tend to disperse within the ethylene-methacrylate ionomer.

This invention belongs to the field of functional polymer masterbatches and provides a highly concentrated fluorescent whitening agent masterbatch and its preparation method. The invention involves melting and wetting fluorescent whitening agent OB-1 with a polyethylene-acrylic acid copolymer to form composite microparticles, which are then melt-dispersed and granulated with polyethylene wax, a composite antioxidant system, and a carrier resin composed of polyethylene or a combination of polyethylene and ethylene-vinyl acetate copolymer. This constructs a high-content, fine-particle-size, and uniformly distributed granular masterbatch system, achieving a coordinated improvement in OB-1 dispersion stability, retention of effective whitening components, melt processing flow, and thermal processing stability. It reduces the proportion of free crystals, agglomeration degree, fuming, and agglomeration risks, solving the problem of balancing dispersion stability and whitening performance, as well as processing flow and thermal stability in highly concentrated whitening masterbatches. This invention is suitable for whitening processing of modified plastics, recycled plastics, and polyolefin products.

The application discloses isobutyryl amino thiazyl resorcinol dipalmitate and a preparation method and application thereof. The compound is successfully prepared by performing an acylation reaction on isobutyryl amino thiazyl resorcinol and palmitic acid. Experiments prove that, compared with the prior art, the compound not only retains excellent whitening efficacy, but also exhibits extremely low cytotoxicity and significant soothing efficacy. The compound has whitening, soothing and high safety, overcomes the defect that traditional whitening agents are strong in irritation, and can be directly applied to cosmetics or skin external drugs, and has extremely high industrial value.

The present invention provides a melanin phagocytosis inhibitor and a topical skin whitening agent that can produce a whitening effect by suppressing the phagocytosis of melanin by keratinocytes caused by thermal stimulation. [Solution] A melanin phagocytosis inhibitor containing a plant extract of the Commelinaceae family, for suppressing the phagocytosis of melanin by keratinocytes caused by thermal stimulation.

Disclosed herein are oral care compositions comprising one or more water-soluble polymers and a whitening agent comprising one or more acyl donors and one or more perhydrolytic enzymes, wherein the oral care composition is in the form of a solid film. Further disclosed herein are methods of making and using the oral care compositions, as well as kits comprising the oral care compositions and a dentifrice comprising at least one source of hydrogen peroxide.

An oral liquid dental suspension is disclosed, including (a) a tooth whitening agent; (b) a solvent; and (c) at least one of (i) a resin or (ii) a urethane. The suspension is formulated to be applied to the surface of human teeth, where it rapidly dries—even in the presence of saliva—to form an adherent varnish. This varnish enables prolonged and effective contact between the whitening agent and tooth enamel for enhanced whitening efficacy. The composition may further include one or more optional additives, such as sweeteners, glazing agents, teeth desensitizers, remineralization agents, sequestering agents, complexing agents, or fluoridation agents. Also provided are kits containing the oral liquid dental suspension and one or more applicators, as well as methods of use involving topical application to teeth and subsequent drying to achieve a whitening effect.

The present invention relates to an adhesive oral film strip designed for the controlled release of sodium fluoride and other therapeutic agents to enhance oral health. The strip comprises a polymeric matrix — primarily polyvinyl alcohol (PVA), hydroxypropyl methylcellulose (HPMC), and carboxymethylcellulose (CMC) which provides mechanical integrity, controlled erosion, and sustained release of active ingredients when applied to the teeth. The invention addresses the challenges of traditional fluoride delivery methods by enabling targeted, prolonged, and customizable administration of fluoride and additional agents such as remineralization compounds, desensitizers, antimicrobials, and whitening agents. The strip may feature multilayer constructions, heterogeneous therapeutic agent distribution, and auxiliary components for improved adhesion, user compliance, and safety. The invention further encompasses methods of manufacture, application, and integration into comprehensive dental care kits, offering solutions for diverse populations and oral health needs. This innovation provides a significant advancement in preventive dentistry by improving caries prevention, enamel remineralization, and overall oral hygiene, while minimizing risks such as fluorosis and enhancing user experience.

The invention relates to polyamide 6 compositions and articles made therefrom. The invention relates to a composition for injection molding. The composition comprises yellow polyamide 6; and a whitening agent. The invention also provides injection molded accessories, such as buttons, zipper sliders, buckles, cord fasteners, cord ends and barriers, comprising the composition. Also provided is a method of making an article, such as a fitting, comprising injection molding the composition.

The utility model relates to the technical field of landscaping, and particularly discloses a landscaping construction tree spraying device which comprises a base, universal wheels rotatably connected to four corners of the bottom of the base, a push rod fixedly connected to the top of the base, a white agent barrel fixedly connected to the top of the base, and a feeding port rotatably connected to the top of the white agent barrel. Two pump bodies are fixedly connected to the top of the base, input pipes are fixedly connected to the input ends of the pump bodies, telescopic pipes are fixedly connected to the output ends of the pump bodies, and hoses are fixedly connected to the ends, away from the pump bodies, of the telescopic pipes. By means of the rubber brushing roller, the white agent can be brushed more evenly, the phenomenon that the white agent is polymerized and dripped in lines of bark, and consequently the white agent is wasted is prevented, the utilization rate and the brushing effect of the white agent are improved, and meanwhile the rubber brushing roller is convenient to replace when the rubber brushing roller is damaged after being used for a long time.

The utility model discloses a fluorescent whitening agent slurry vacuum degassing device of anti -spill, including degassing furnace, and the degassing mechanism includes two first connecting tubes, and the one end of two first connecting tubes is connected with the U type anti -spill pipe of intercommunication, and the other end of two U type anti -spill pipes is connected with the second connecting tube of intercommunication, and the other end of two second connecting tubes is located inside the bottom of degassing furnace, and the top of degassing furnace is fixed with the conical cover, and the inner wall bottom of conical cover is fixed with the sealing plate, and the top of sealing plate is installed with vacuum pump, and the air inlet end of vacuum pump is connected with the duct of intercommunication, and the other end of duct is located inside the top of degassing furnace. The utility model has formed good sealing effect in the process of degassing, improved the efficiency of degassing, and improved the quality of fluorescent whitening agent slurry, and sealing effect avoided the outside air backwash, maintained the stable vacuum environment in the degassing furnace, reduced the equipment operation failure caused by the pressure fluctuation.

The utility model relates to the field of fluorescent whitening agent production technology discloses a fluorescent whitening agent high temperature high pressure synthetic device with monitoring mechanism, including the reaction kettle, the reaction kettle outer wall bottom fixedly equipped with heating sleeve, heating sleeve top one side is provided with the oil inlet pipe, heating sleeve bottom is provided with the oil outlet pipe, and the oil outlet pipe is uniformly fixedly installed with the valve on the oil inlet pipe, heating sleeve bottom circumference equidistance fixedly connected with three support legs, heating sleeve outer wall one side is fixedly connected with the mounting bracket, and the mounting bracket outside is fixedly connected with the copper plate, and the copper plate outside is fixedly connected with the semiconductor refrigeration plate, and the one side of semiconductor refrigeration plate close copper plate is the refrigeration surface. The utility model, realized can fast the reaction kettle inside temperature and maintain in stable state, avoid because temperature abnormal heightening influence fluorescent whitening agent production, maintain the reaction kettle operation stability, guarantee equipment safe and reliable operation.

The oral care compositions described herein comprise an ascorbic acid derivative as a tooth whitening agent. The oral care compositions described herein are stable until use, affordable, safe, easy to use, and do not require special equipment or trained personnel to apply.

The invention belongs to the technical field of organic compounds and artificial boards, and relates to a whitening agent, a preparation method thereof and application of the whitening agent in whitening type medium density fiberboards, the whitening agent comprises the following components by mass percent: 2-5% of hydrogen peroxide, 0.2-0.6% of sodium silicate, 0.5-1.5% of sodium hydroxide, 0.1-0.4% of water-soluble stilbene fluorescent whitening agent and the balance of water. The preparation method comprises the following steps: sequentially adding the components into water at 60-65 DEG C, stirring and dissolving, and keeping the temperature at 60 DEG C for later use. When being applied, the cleaning agent is added in a wood chip washing process, the mass of the cleaning agent is 1-1.5% of the total mass of cleaning water for the first time, and 0.05-0.08% of the cleaning agent is supplemented per hour subsequently. According to the whitening agent, through the synergistic effect of chemical oxidation and physical color complementing, the whiteness of a fiberboard reaches 31-36 (only 14 in a conventional process), the physical and chemical properties meet the GB / T 11718-2021 standard, and the whitening agent is environmentally friendly, free of residues, simple to prepare and apply, suitable for industrial continuous production and capable of remarkably improving the added value of products.

The invention discloses a composition for inhibiting color change of a whitening agent based on troxerutin. The composition is prepared from the following core active components in parts by mass: 0.1 to 0.5 part of syringyl malonic acid diethyl hexyl ester, 0.01 to 0.05 part of pentaerythritol tetra (bis-tert-butyl hydroxy hydrocinnamic acid) ester, 0.5 to 2 parts of troxerutin liposome and 0.05 to 0.5 part of toxostat; the composition does not contain any one or more of sodium pyrosulfite, sodium sulfite and sodium hydrogen sulfite; sulfate components are not used in the whole process, all the components are cosmetic-grade safe raw materials, skin irritation tests prove that the composition has no obvious irritation to people with sensitive skin and is wide in applicable people coverage, and the pain point that a traditional inhibitor is not friendly to sensitive skin is solved.

The present application relates to a moisturizing and whitening body milk containing a composite plant extract and a preparation method thereof, and belongs to the technical field of cosmetics. The composite plant extract is prepared by pretreatment, compounding, fermentation and ultrasonic extraction of Dendrobium nobile Lindl. flowers and Dendrobium nobile Lindl. leaves, and combined with ginseng extract, salvia miltiorrhiza root extract and schizonia parilis fermentation technology, which significantly improves the stability of active ingredients. The moisturizing and whitening body milk formula contains the composite plant extract, supplemented with emollients, whitening agents, thickeners, colorants and other components, and is prepared by step-by-step mixing and homogenization of the water phase and the oil phase. The body milk of the present application has excellent moisturizing performance and whitening effect, the composition has high stability, no delamination phenomenon during long-term storage, and the preparation process is simple, suitable for industrial production.