641 results about "Creaming" patented technology

The invention discloses a high-stability endotoxin-free PHA nano-emulsion and a preparation method thereof, and belongs to the technical field of biodegradable high polymer material compositions and processing thereof. The nano-emulsion is characterized in that the endotoxin content is not higher than 0.10 EU / g, the median particle size d50 is 100-200 nm, and the PDI is not higher than 0.15, and the nano-emulsion is stable in long-term storage. The preparation method is a continuous solvent-free process and comprises the steps of melt extrusion, high-pressure thermal emulsification and deep endotoxin removal. By adopting the specific pH-insensitive cationic polymer emulsifier and the crystallization inhibitor, the chemical contradiction that an efficient alkaline purification process is incompatible with a nano-emulsion stable system is solved, physical aging is inhibited, and an unexpected technical effect is obtained. The invention also discloses an O / W type cream containing the nano emulsion.

The invention relates to a whitening and soothing composition, a nano microemulsion containing the same and a preparation method of the nano microemulsion. The whitening and soothing composition comprises a litchi fruit extract, a quercus root extract, a malt extract and palmitoyl tripeptide-5. According to the functional composition, the litchi fruit extract, the oak root extract, the malt extract and the palmitoyl tripeptide-5 are creatively combined for use, so that the functional composition has excellent skin whitening and soothing effects, and the four components have an obvious synergistic interaction effect in the aspects of whitening and soothing the skin; the functional composition can be widely applied to cosmetics with related functions. The nano micro-emulsion prepared from the functional composition is subjected to shearing emulsification and then high-pressure micro-jet treatment, so that the prepared nano micro-emulsion is better in stability and better in appearance property, and the nano micro-emulsion can stably play a role in whitening and relieving for a long time.

The invention relates to the technical field of functional materials, in particular to a chitosan nanocapsule as well as a preparation method and application thereof. The preparation method of the chitosan nanocapsule comprises the following steps: (a) mixing and emulsifying a chitosan solution, an oil-in-water emulsifier and essential oil to form an oil-in-water emulsion, adding an aqueous solution of sodium tripolyphosphate into the oil-in-water emulsion, and stirring to obtain a first mixture; (b) adding the first mixture into an oil phase solvent containing a water-in-oil emulsifier, and stirring to obtain a multiple emulsion; and (c) adding an aqueous solution of a dialdehyde cross-linking agent into the multiple emulsion, carrying out a cross-linking reaction, collecting a solid-phase substance, and drying. The physical / chemical double-crosslinking chitosan nanocapsule is obtained by utilizing physical crosslinking between the chitosan and the sodium tripolyphosphate and chemical crosslinking between the chitosan and the binary aldehyde crosslinking agent, so that the encapsulation efficiency and the encapsulation efficiency of the nanocapsule are remarkably improved; meanwhile, the nanocapsule also has pH responsiveness and has a slow release effect after pH response.

The invention provides a preparation method of a calcium emulsifying and embedding system with high bioaccessibility, which comprises the following steps: S1) heating and mixing biomacromolecules and an emulsifier in water to obtain a water phase; the biomacromolecules are protein colloids and / or polysaccharide colloids; the method comprises the following steps: heating and mixing a calcium source substance and anhydrous cream to obtain an oil-solid phase; and S2) mixing the oil-solid phase with a water phase, and emulsifying to obtain the calcium emulsifying and embedding system. Compared with the prior art, the preparation method has the advantages that the natural macromolecular protein and / or polysaccharide with high nutritional value is used as a carrier, the calcium source substance is embedded through a water-oil-solid three-phase emulsification technology, and the preparation method is simple, easy to operate, low in cost and environmentally friendly; in addition, a water-oil-solid three-phase homogenized emulsion is created, the problem that the dispersion stability of milk mineral salt in a liquid food matrix is poor is effectively solved, release of free calcium ions in the small intestine environment can be promoted, and the calcium bioaccessibility is remarkably improved.

The invention provides a water-blocking microcapsule, a fish oil composite hair beautifying ointment and a preparation method, and relates to the technical field of animal health products. The water-blocking microcapsule is a solid particle formed by a core material and a wall material coating the core material; the core material is fish oil emulsion subjected to bile salt emulsification treatment; the wall material sequentially comprises an inner-layer wall material and an outer-layer wall material from inside to outside; the inner-layer wall material is a wall material formed by solidifying alginate; and the outer-layer wall material is a water-blocking wall material which is arranged outside the inner-layer wall material and is made of nanocrystalline cellulose. The water-blocking microcapsule provided by the invention realizes multiple beneficial effects of efficient digestion and absorption of fish oil, improvement of palatability, enhancement of oxidation resistance and stability, fixed-point release of intestinal tracts and the like, provides an innovative technical scheme for development of animal health products, and has wide application prospects and market values.

The invention discloses application of a particle stabilizer, an oil-in-oil Pickering emulsion as well as a preparation method and application of the oil-in-oil Pickering emulsion, and relates to the technical field of emulsion preparation. The particle stabilizer is used for preparing the oil-in-oil Pickering emulsion, and the particle stabilizer is solid insoluble nanoparticles and is selected from one or more of inorganic nanoparticles, organic nanoparticles, composite oleophobic nanoparticles and stimuli-responsive nanoparticles. The preparation method of the oil-in-oil Pickering emulsion comprises the following steps: mixing the first oil phase, the second oil phase and the particle stabilizer, and carrying out an emulsification technology to obtain the oil-in-oil Pickering emulsion. According to the emulsion system prepared by the invention, the oil phase components with different polarity differences are reasonably matched, and the oil phase type is flexibly selected according to specific requirements of target application, so that the environmental adaptability and the function application range of the emulsion can be remarkably improved, and the emulsion system has a good application prospect.

The invention provides moisturizing and anti-wrinkle cream and a preparation method thereof. The moisturizing and anti-wrinkle cream is prepared from the following raw materials in percentage by mass: 2%-10% of fibroin composite microsphere solution, 2%-5% of skin conditioner, 1%-2% of emollient, 8%-15% of humectant, 0.1%-1% of emulsifier, 1%-2% of emulsion stabilizer, 0.1%-0.2% of thickener and the balance of water. Wherein the fibroin composite microsphere is a spherical aggregate obtained by interpenetrating and entangling fibroin and poly-desoxyribonucleic acid in a cation environment and folding and compressing the fibroin and the poly-desoxyribonucleic acid; the composite microspheres can be percutaneously absorbed, and when the composite microspheres are applied to a formula of cream, the percutaneous permeation efficiency of the cream is greatly improved, and the moisturizing and anti-wrinkle effects of the cream are improved.

The application belongs to the technical field of plant raw material processing, and particularly relates to a preparation method of a blocky emulsion gel product simulating animal fat, which is formed based on a soybean protein and sodium alginate composite base and comprises the following steps: (1) mixing pure water, soybean protein and sodium alginate, then shearing at high speed, and dispersing and emulsifying in perilla oil; (2) adding gluconolactone, stirring and mixing, then immediately adding calcium carbonate while stirring, to form a first gel network; (3) after stirring, pouring into a mold for shaping, placing in a 4 DEG C refrigerator for gelation, forming a second protein network, and obtaining a simulated fat product with strong stability. The application forms a simulated fat with a complex double-network structure under the action of two kinds of inducing agents by constructing a protein-polysaccharide composite gel system, improves the stability and oiliness of the gel, and expands the cooking adaptability of the simulated fat.

The invention belongs to the technical field of daily necessities, and particularly relates to a high-absorption side-leakage-preventing 3D liquid sanitary towel and a preparation method thereof. A high-absorption side-leakage-prevention 3D liquid sanitary towel sequentially comprises a surface layer, an absorption layer and a leakage-prevention layer from top to bottom. The preparation method of the absorption layer comprises the following steps: (1) introducing a first oil phase, a water phase A and a water phase B into a first continuous emulsification device to obtain a first emulsion; (2) introducing the second oil phase, the water phase C and the water phase D into a second continuous emulsification device to obtain a second emulsion; and (3) coating the upper surface of a non-woven fabric with the first emulsion, coating the lower surface of the non-woven fabric with the second emulsion, performing illumination and steam treatment, and then performing dehydration and drying to obtain the absorption layer. The absorption layer of the liquid sanitary towel is high in flow conductivity and liquid absorption capacity, and the absorption capacity and the side leakage prevention capacity of the liquid sanitary towel are improved.

The invention discloses fluticasone propionate emulsifiable paste and a preparation method thereof. The preparation method of the fluticasone propionate emulsifiable paste comprises the following steps: S1, mixing liquid paraffin, isopropyl myristate and other auxiliaries, and heating to obtain an oil phase; s2, purified water, propylene glycol, disodium hydrogen phosphate dodecahydrate and other auxiliaries are mixed to obtain a water phase; and S3, adding the oil phase into the water phase, adding fluticasone propionate and the like after complete emulsification, uniformly stirring, and standing to obtain the cream. Compared with the prior art, the fluticasone propionate emulsifiable paste prepared by the invention is not easy to layer at high and low temperatures, and the obtained emulsifiable paste has better stability and is very beneficial to transportation, storage and the like of the product.

The invention discloses water-soluble soldering paste and a preparation method thereof. A soldering flux A comprises a solvent A, a rosin-based material, a thixotropic agent A, an active agent A, a corrosion inhibitor and a surfactant; the rosin-based material comprises at least one of acrylic acid modified rosin, hydrogenated rosin or polyoxyethylene rosin; the soldering flux B comprises a solvent B, a rosin derivative, an active agent B and a thixotropic agent B; the solvent B is a hydrophobic solvent; the rosin derivative comprises at least one of polyoxyethylene rosin amine and polyoxyethylene polymerized rosin; and the soldering flux A and the soldering flux B are compounded into an emulsion structure. Refrigerating the soldering flux A, taking out the soldering flux B, returning to normal temperature, mixing, and emulsifying for 5-10 minutes at the stirring speed of more than 1000rpm to obtain the soldering flux C; and 85-92% of soldering powder is added into 8-15% of the soldering flux C, vacuum uniform mixing is carried out at the stirring speed of 20-40 rpm, and the water-soluble soldering paste is obtained.

A composite oil phase and composite emulsion matrix for site-mixed emulsion explosive and preparation methods therefor. The composite oil phase is divided into material A and material B, wherein in the material A, a high-viscosity polyisobutylene maleic anhydride amine esterification derivative is used as a primary emulsifier to increase the strength and thickness of an emulsification film of an emulsion matrix, thereby improving the stability of the emulsion matrix; in the material B, a low-viscosity polyisobutylene maleic anhydride amine esterification derivative and SP-80 are used as primary emulsifiers to regulate the ammonium nitrate dissolution rate of the emulsion matrix, thereby improving the sensitization characteristic of the emulsion matrix; and the emulsion matrix prepared from two composite oil phases can effectively improve the water resistance of the emulsion matrix while the problems of high-temperature over-sensitization and low-temperature insensitivity are solved, so that the explosion quality is guaranteed.

Emulsion explosives with gas bubbles that are resistant to in-borehole migration or coalescence are disclosed herein. Such emulsions can be sensitized by mechanically-introducing gas bubbles into the emulsion. Resistance to gas bubble migration and coalescence can be achieved by homogenization, without the need for bubble stabilization agents.

The invention discloses a ceramide-containing composition as well as a preparation method and application thereof, and belongs to the technical field of daily chemical products and medicines. The composition comprises 0.1%-5.0% of ceramide, 1.8%-2.7% of an emulsifier, 1.2%-2.5% of an emulsion stabilizer, 8%-14% of a solvent, 3%-5% of an emollient and 0.7%-0.95% of a stabilizing aid, the composition obtained by compounding the components has high stability, and the phenomena of particle precipitation, oil-water separation and the like are avoided; meanwhile, all the components are mutually matched and have a synergistic effect, and the effects of fading, repairing and resisting wrinkles can be achieved.

The invention discloses a long-acting cool and refreshing lingering paste based on compound matrix slow release and a preparation method thereof, and belongs to the technical field of cosmetics. The ointment body comprises 20-24 parts of beewax, 35-40 parts of a substance with an HLB (Hydrophile-Lipophile Balance) value of 12-15, 28-35 parts of a freshener and 5-7 parts of a plant extract composition. The plant extract is embedded into the matrix in the form of nano emulsion by combining staged temperature control with a nano emulsion technology. The invention has the following effects: by regulating and controlling the proportion of the beewax and the esters with high HLB (Hydrophile Lipophile Balance) value, a honeycomb porous structure is formed, and the body temperature triggered slow release of high-concentration cooling components is realized; through a low-temperature gradient process, staged temperature control (melting-> 40 DEG C emulsification) is combined with a nano-emulsification technology, and the activity of volatile components is retained (the retention rate gt is 98%). The product provided by the invention has the advantages that the cooling feeling lasts for 4-6 hours, the irritation is obviously lower than that of similar products, and the product is suitable for non-face resident type cooling and refreshing nursing for adults.

The invention discloses a preparation method of a fluoride-free oil-proof agent for paper pulp molding, and relates to the field of oil-proof agent preparation. The preparation method comprises the following steps: adding a nonionic and cationic surfactant, a thickening agent, a bio-based functional additive, a cross-linking agent and a polymerizable siloxane coupling agent into water, heating and stirring, emulsifying with molten wax, homogenizing at high pressure, then adding a preservative and an anti-settling agent, and reacting at room temperature to obtain the wax emulsion with small particle size and stable structure. The prepared product has excellent storage stability, oil-proof performance and washable performance, does not stratify after centrifugation and long-term storage, and meets the green and environment-friendly requirements.

The invention relates to the technical field of colloid and interface chemistry, in particular to an oil-in-water-in-oil double emulsion, a one-step preparation method of the oil-in-water-in-oil double emulsion and application of the oil-in-water-in-oil double emulsion. A water phase and an oil phase are sheared and stirred at a high speed of 6000-12000 r / min through a one-step process to form an emulsion with a droplet diameter of 1-100 [mu] m. According to the invention, the tedious process of respectively stabilizing the inner and outer oil-water interfaces of the double emulsion through two emulsifiers with different hydrophilic and oleophylic properties in a traditional two-step method is effectively improved, and the O / W / O double emulsion is directly obtained through a one-step process, so that the purpose of simultaneously stabilizing the inner and outer emulsion interfaces of the double emulsion through a single emulsifier is achieved; the method has a huge potential application prospect in the fields of food packaging, drug sustained release and the like.

The application discloses a preparation method of a high internal phase emulsion stabilized only by proteins, which mixes a completely hydrated protein solution as a water phase with an oil phase, and controls the hydrodynamic characteristics of a shearing emulsification process to obtain the high internal phase emulsion stabilized only by proteins. The preparation method of the application can obtain the high internal phase emulsion stabilized only by food-grade proteins through one-step shearing emulsification without other measures. The prepared high internal phase emulsion has good gel characteristics, stability and high safety, and can be used as a substitute for partially hydrogenated vegetable oil and saturated fatty acids. Meanwhile, the method is simple in operation, low in preparation cost and suitable for large-scale industrial promotion.

The invention discloses an anti-wrinkle composition based on micro-emulsion synergistic interaction and application, and belongs to the field of cosmetics, the anti-wrinkle composition comprises the following components by mass: 0.5-3 parts of a water-soluble chrysanthemum extract; 0.5-2 parts of an oil-soluble saussurea involucrata extract; 0.1 to 1 part of dipalmitoyl hydroxyproline; and 1 to 2 parts of tribehenyl PEG-20 esters. By combining a microemulsion technology, anti-wrinkle active matters can be dispersed into small particles which are more easily absorbed by skin, the anti-wrinkle active matters can be promoted to better exert effects, the product is made into a microemulsion particle size by pertinently designing and matching a formula system, the active components can be more easily absorbed by skin, and the anti-wrinkle effect can be improved. The effect of adding low amount of functional active matter to high amount of functional active matter is achieved, the production cost of manufacturers is reduced, and the anti-wrinkle effect is achieved from multiple dimensions.

The invention relates to the technical field of daily chemical production equipment, in particular to an essence emulsion emulsifying tank with an anti-wall-sticking scraping structure, which comprises a size mixing tank body, a triangular underframe is fixed at the bottom end of the inner side of the size mixing tank body, and a tank cover is assembled at the top end of the size mixing tank body. A transmission rod is rotationally connected to the inner side of the size mixing tank body and located between the tank cover and the triangular bottom frame, a plurality of stirring paddles are fixed to the outer side of the transmission rod, and a conical scraping frame is fixed to the bottom end of the outer side of the transmission rod and located above the triangular bottom frame; a second servo motor is started to drive a worm and a worm gear to rotate, the worm gear drives a U-shaped scraping plate and an inclined scraping piece to rotate synchronously, essence milk remaining on the inner wall of the size mixing tank body is effectively scraped downwards in the inclined direction, at the moment, a first servo motor drives a transmission rod, a stirring paddle and a conical scraping frame to rotate, and the stirring paddle is driven by a second servo motor to rotate. Further, the scraped essence milk participates in mixing, so that the essence milk is effectively mixed through a stirring paddle, and the mixed essence milk is scraped and discharged through a conical scraping frame.

The invention discloses an amphiphilic carbon-based nano oil displacement agent with a high emulsification level and a preparation method thereof, and belongs to the technical field of emulsification. The carbon-based quantum dots are synthesized by taking various small molecule compounds as raw materials through one-step hydrothermal synthesis, and then functional groups such as hydroxyl and carboxyl of the carbon-based quantum dot material are subjected to post-modification by using alkylamine, sulfanilic diazonium salt and the like, so that the hydrophilic and hydrophobic properties of the carbon-based quantum dot material are directionally regulated and controlled; therefore, the amphiphilic carbon-based nano oil displacement agent with good surface activity is prepared. The method has general adaptability to most of carbon-based quantum dot materials, and the prepared carbon-based nano oil displacement agent shows good interface performance and emulsifying performance as a surfactant. Various prepared carbon-based nano oil displacement agents show good interfacial activity and excellent emulsifying performance, and a water-oil two-phase emulsion system prepared from the carbon-based nano oil displacement agents prepared by the method is dense in emulsion, small in emulsion bubble particle size and very excellent in stability.

The invention discloses a preparation method of a low-temperature-resistant heat-sealing emulsion, and belongs to the technical field of food packaging heat-sealing emulsions. The emulsion is composed of polyol, isocyanate, polydimethylsiloxane glycol, a micromolecule chain extender, a low-temperature-resistant bio-based adhesive, a cross-linking agent, an emulsifying dispersant and an antioxidant. The preparation method comprises the following steps: carrying out a reaction on polyol and isocyanate to generate a prepolymer, adding polydimethylsiloxane glycol and a micromolecular chain extender for continuous reaction, and then adding the low-temperature-resistant bio-based adhesive, the cross-linking agent, the emulsifying dispersant and the antioxidant to finally form an emulsion. The emulsion can still keep good heat sealing performance and stability in a low-temperature environment, is suitable for the field of food packaging, and meets the sealing performance requirement in the low-temperature storage and transportation process.

The invention provides a preparation method of composite microspheres for a medical beauty injection filler, and belongs to the technical field of chemical treatment methods, and the preparation method comprises the following steps: mixing polylactic acid macromolecules and inorganic particles to prepare an oil phase; preparing a polyvinyl alcohol or Tween 80 surfactant aqueous solution as an aqueous phase; shearing and emulsifying in supergravity equipment to form an oil-in-water solid-in-water emulsion; mechanically stirring at room temperature to promote volatilization of the organic solvent; centrifugally washing to remove residues; freeze-drying to obtain composite microspheres; determining and evaluating particle size distribution; mixing with cross-linked sodium hyaluronate gel to prepare an injection filler; evaluating the biocompatibility and the collagen regeneration efficiency; and optimizing the formula according to an evaluation result. The technical problem that the preparation stability of the composite microspheres in the medical beauty injection filler is poor is solved, and the medical beauty injection filler which is consistent in batch height and good in preparation stability is finally obtained.

The invention discloses a high-internal-phase emulsion and a graded porous material prepared from the high-internal-phase emulsion, the high-internal-phase emulsion comprises an oil phase and a water phase, the oil phase comprises a polymeric monomer, a crosslinking monomer, a foaming pore-forming auxiliary agent, an emulsifier and an initiator; according to the invention, the foaming pore-forming auxiliary agent is introduced into the high internal phase emulsion with a water-in-oil (W / O) structure, and the foaming pore-forming auxiliary agent is uniformly dispersed in an oil phase, so that the emulsification of the high internal phase emulsion is not influenced, and the integrity of a first-level foam skeleton structure formed after curing is not influenced; meanwhile, the foaming pore-forming auxiliary agent can be decomposed or volatilized at the polymerization temperature, gas is formed, pores are formed, and a large number of communicated micropores are formed in the continuous support, so that the obtained porous material has a first-stage macroporous structure and a second-stage microporous structure at the same time.

The purpose of the present disclosure is to provide a frozen foamable oil-in-water emulsified oil / fat composition having excellent whipping properties after thawing and capable of providing smooth whipped cream with cool feeling.　This frozen foamable oil-in-water emulsified oil / fat composition contains sorbitan monostearate and an emulsifier (A) having a HLB of 7-17 inclusive, and the content of the sorbitan monostearate is 0.1-0.5 wt% in the entire frozen foamable oil-in-water emulsified oil / fat composition.

The invention discloses a semitransparent skin-nourishing face cream based on a medium-temperature hot pot process and a preparation method and application thereof, belongs to the technical field of cosmetics, and aims at solving the problems that in the prior art, in the face cream preparation process, a high-temperature processing process can destroy the activity of natural extracts; and the technical problem of how to enable the face cream to be semitransparent through formula system combination is solved. The preparation method of the semitransparent skin-care face cream based on the medium-temperature hot pot process comprises the following steps: putting a phase A into an emulsifying pot, and stirring and heating to 80-85 DEG C; adding the phase B into the emulsifying pot, stirring and heating to 80-85 DEG C, and then cooling to 60-65 DEG C; sequentially adding the phase A, the phase B, the phase C and the phase D into an emulsifying pot to enable the materials to be uniform, and cooling the materials to 53-57 DEG C to obtain cream; and filling the cream to obtain the prepared semitransparent skin-nourishing face cream based on the medium-temperature thermal tank process. The semitransparent face cream is prepared by designing a component compounding system.

The present invention relates to a method for producing farnesene oil, the method comprising the use of a raw material fermentation yeast in a fermentation vessel to produce a whole cell culture fluid (WCB); and adding a surfactant to the fermentation vessel to reduce emulsification within the fermentation tank.

The present invention relates to a cosmetic composition in the form of a water-in-oil emulsion, comprising, in a physiologically acceptable medium, (i) at least two distinct linear alkanes, each containing from 9 to 14 carbon atoms and differing from each other by at least two carbon atoms, (ii) an emulsifying system comprising at least two distinct polyglycerols and fatty acid esters, which may optionally be (poly)hydroxylated, and (iii) pigments and fillers, wherein the total content of C9 to C14 linear alkanes is at least 12% by weight, preferably at least 15% by weight, relative to the total weight of the composition.

The invention belongs to the technical field of food, and discloses a method for preparing an emulsifier-free functional sauce from a plant-based particle stable oil phase and a plant-based particle stable water phase. Food raw materials and edible byproducts thereof are physically modified into plant-based particles with emulsifying performance by utilizing a medium grinding technology, and effective adsorption of the particles on an oil-water interface is realized, so that an oil phase and a water phase are stabilized; meanwhile, by utilizing the effective interaction of other components such as food gum, edible salt, table vinegar and plant-based emulsion particles in the sauce on an oil-water interface and a water phase, a stable emulsion space structure network is formed, the stability of the sauce in different processing and storage environments is maintained, and the stability of the sauce is remarkably improved. In addition, the plant-based emulsified particles are only subjected to physical treatment instead of chemical modification, raw material names can be labeled in a product ingredient table, and the'clean label 'attribute of the product is enhanced.

The present application relates to string maintenance nanoemulsion and its preparation method, belong to string maintenance technical field. The nanoemulsion includes: polysorbate 80, stearic acid sorbitan 60 as main emulsifier, glycerin monostearate, cetyl alcohol, stearyl alcohol as auxiliary emulsifier, liquid paraffin, xanthan gum adjusts consistency, chitosan carries sodium hyaluronate nanoparticle as long-acting moisturizing agent, glycerol, propylene glycol is humectant and can be used as antifreezing agent; hydroxyphenyl ethyl as preservative; can also selectively add essence, the balance is water. The water-soluble ingredients are mixed and stirred uniformly; the oil-soluble ingredients are mixed and stirred uniformly; the oil phase is added to the water phase, and the primary emulsion is stirred and emulsified, and the essence is added after cooling, and the present application is obtained. The present application realizes long-acting moisturizing and nourishing of the string by introducing chitosan carrying sodium hyaluronate nanoparticles, and has the advantages of fine texture, softness and the like.