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63 results about "Ultraviolet a" patented technology

Graphene/nylon 6 textile with permanent anti-ultraviolet function and preparation method thereof

The invention relates to a graphene / nylon 6 textile with a permanent ultraviolet protection property and a preparation method thereof, and belongs to the field of functional textiles. The graphene / nylon 6 textile with the ultraviolet protection property is obtained by making a graphene / nylon 6 composite fiber into a textile; the graphene / nylon 6 composite fiber is obtained by the in-situ polymerization of modified graphene and caprolactam and carrying out melt spinning. The graphene / nylon 6 textile obtained by the preparation method not only has excellent physical and mechanical properties, but also has functions, particularly the ultraviolet protection property, that multiple nylon 6 textiles do not have; further, the functions of the graphene / nylon 6 textile are permanently effective, and cannot be attenuated due to the increment of the water scrubbing times of the textile. The ultraviolet protection factor (UPF) of the graphene / nylon 6 textile is more than 40; the ultraviolet light transmissivity (T) (UVA (Ultraviolet A)) is less than 5 percent; the graphene / nylon 6 textile meets the requirements, about anti-ultraviolet products, of a standard GB / T18830-2009, and can serve as an anti-ultraviolet functional textile to be used for the fields of skin coats, parasols, curtains and the like.
Owner:HANGZHOU GAOXI TECH CO LTD +2

Preparation method of herba portulacae extracting solution

The invention discloses a preparation method of a herba portulacae extracting solution. The preparation method comprises steps as follows: fresh herba portulacae is weighed and crushed into herba portulacae pulp by a crusher; ethanol with the volume percentage being 50%-75% is added, the mixture is stirred at the temperature of 60-80 DEG C, extracted for 1-3 h and filtered, filtrate I is obtained and then distilled, ethanol is recovered, water is added until the volume of original filtrate I is reached, and filtrate II is obtained; an activated carbon and activated clay compounded decolorizing agent is added to the filtrate II, the filtrate II is decolorized for 20-40 min at the temperature of 20-80 DEG C, and activated carbon is filtered out with a ceramic membrane; filtrate with the molecular weight smaller than 150-300 is intercepted with a nanofiltration membrane, and filtrate III is obtained; a humectant is added to the filtrate III, then, a preservative is added, and the herba portulacae extracting solution is obtained. The preparation process of the herba portulacae extracting solution is simple to operate, and industrial production is facilitated; the herba portulacae extracting solution prepared with the preparation method has high anti-UVA (ultraviolet A), free radical scavenging and in-vitro oxidation resistance characteristics and cannot cause inflammatory factors.
Owner:弘正道(中国)中药研究有限公司

Comprehensive-effect sunscreen lotion containing oceanic biological active substances

The invention discloses a comprehensive-effect sunscreen lotion containing oceanic biological active substances. The lotion contains seashells active peptides, oceanic collagen peptides and algal polysaccharides as main active ingredients, and also contains allantoin, magnesium ascorbyl phosphate, vitamin E acetate, ultraviolet A absorbent and ultraviolet B absorbent. The comprehensive-effect sunscreen lotion disclosed by the invention solves the problem that the sunscreen cosmetics in the prior art have irritation and phototoxicity to skin and poor air permeability, make skin oily, and easily block sweat pores; and the sunscreen lotion organically combines oceanic biological active substances and a sunscreen agent, so as to greatly improve the sunscreen capacity and safety of the sunscreen lotion while reducing the use amount of the sunscreen agent. The lotion has mild and comprehensive effects, not only can effectively block the damage of ultraviolet ray to skin and relieve skin inflammations due to sunscald, but also can keep skin moist, provide nutrients, promote skin regeneration, repair damaged skin and comprehensively improve the protection capability of skin. Meanwhile, the lotion has w / o (water-in-oil) type and o / w (oil-in-water) type, and is suitable for people of various skin types.
Owner:FOSHAN ANAN BEAUTY & HEALTH PRODS

Ultraviolet pretreatment testing device for solar panel

The invention discloses an ultraviolet pretreatment testing device for a solar panel. The testing device consists of a main box body and a control cabinet, wherein a heating space is formed in the main box body; the inner wall of the heating space is provided with a heater; the front side of the heating space is provided with two groups of ultraviolet lighting tubes controlled by an ultraviolet lamp controller; the two groups of ultraviolet lighting tubes are arranged in an inserting way; one group of ultraviolet lighting tubes is driven by a motor transmission mechanism; a solar panel rotating stand driven by a motor is arranged in the heating space; the rotating stand is provided with a radiometer driven by a motor set to perform planar scanning, a UVB (ultraviolet B) detector and a UVA(Ultraviolet A) detector; an ambient temperature detection element is arranged in the main box body; and an exhaust device is arranged in the main box body. The testing device is an environmental ageing simulation testing device designed and developed specific to the ultraviolet pretreatment testing demand of the solar panel. A measuring system is designed according to the characteristics of highintegration level and high reliability of a motion control card and a multifunctional card. By adopting the testing device, the research and development periods can be shortened greatly, and the system constructing cost is lowered greatly.
Owner:SOUTHEAST UNIV

Human body surface coating object containing photochromic sunblock particles

The invention provides a photochromic sunblock particle, a human body surface coating object containing photochromic sunblock particles, and application of the coating object in skin sunblock, body painting and a field hidden material. A photochromic material is added into the human body surface coating object and serves as an ultraviolet absorber, the absorption wavelength is between 280 nm and 400 nm and is just in the wavelength range of UVA (ultraviolet a) and UVB (ultraviolet b) radiating to the ground, the absorption efficiency is high, and the ultraviolet protection effect is improved; the photochromic material is stable in performance, long in service life and good in hot and cold resistance, and the fatigue endurance can reach more than 10,000 times; the surface coating object can be changed into various beautiful and bright colors while absorbing ultraviolet light, can change the colors when applied to a human body and irradiated under sunshine, and can be used for body painting, the field hidden material and the like due to the characteristic; and besides, the ultraviolet intensity of sunlight can be evaluated through observation of the color change condition and the color degree, and a user can be reminded of certain ultraviolet protection.
Owner:TIANJIN UVOS TECH CO LTD

Embedding type sunscreen cream and preparation method thereof

The invention discloses an embedding type sunscreen cream and a preparation method thereof, and relates to the technical field of cosmetics. The embedding type sunscreen cream is prepared from the following components in percentage by weight: 14 to 20% of solid lipid, 4.5 to 6% of emulsifier, 8 to 14% of sunscreen agent, 1 to 3% of polysorbate-80, 0.5 to 1.5% of pentanediol, 0.5 to 1.5% of lecithin, and the balance of water. The embedding type sunscreen cream has the advantages that the solid lipid is used as the raw material to prepare the sunscreen cream embedded with the composite sunscreenagent, so that the embedding rate is high, the medicine carrying amount is high, the stability is high, the irritation property is low, the medicine release property is good, and the like; by compounding three types of sunscreen agents, the good synergistic function on the sunscreen effect is realized, and the SPF (sun protect factor) value and PFA (protection factor of ultraviolet A) value are improved; the particle size is increased by the molecules of the solid lipid, so that the sunscreen agents are stayed at the skin surface to realize the sunscreen function; the periphery of each sunscreen agent is coated with the solid lipid, so that the medicine can be effectively released, the leakage of medicine is reduced, and the irritation to the skin is reduced; the liquid oil grease is notneeded, so that the greasiness is reduced; the organic solvent is not needed, so that the irritation property is decreased.
Owner:上海格兰化妆品有限公司

Sunblocking cream containing zingiber corallinum hance essential oil

The invention provides a sunblocking cream which is natural and resists ultraviolet B (UVB) radiation and ultraviolet A (UVA) radiation, and can improve the resisting and defending capacity of the human body cells to ultraviolet radiation. The product comprises the following raw materials in parts by weight: 0.5-5 parts of zingiber corallinum hance essential oil, 0.5-1 parts of curcuma oil, 0.5-1parts of zedoary turmeric oil, 5-8 parts of emulsifier, 1-5 parts of humectant, 1-3 parts of active agent, 8-10 parts of excipient and 62.8-72.3 parts of pure water, and is prepared by the following steps: mixing and heating aqueous phase substances, namely the humectant, active agent and pure water to the temperature of 85-87 DEG C; evenly mixing and heating oil phase substances, namely the zingiber corallinum hance essential oil, curcuma oil, zedoary turmeric oil, emulsifier and excipient to the temperature of 85-87 DEG C; and slowly pouring the oil phase into the aqueous phase, stirring and evenly mixing, homogenizing for 5-10 minutes at the temperature of 85-87 DEG C, and cooling. The sunblocking cream of the invention resists the UVB radiation and UVA radiation, can improve the resisting and defending capacity of the human body cells to ultraviolet radiation, can promote skin cell division and accelerates self renewal of the skin cells; the skin does not generate erythema after being exposed to the sun, and can not be tanned; and the sunblocking cream has good sunblocking effect, low application cost, simple and feasible preparation method.
Owner:重庆灵方生物技术有限公司

Open type multichannel visual photocatalytic oxidation teaching experimental device

The invention relates to an open type multichannel visual photocatalytic oxidation teaching experimental device, which comprises a reactor, wherein a vertical light source and a gas circuit thrusting needle are arranged in the reactor; the light source is a light source with small power and low energy consumption, namely an ultraviolet-A (UV-A) light tube with the power of between 5 and 10 W; theUV-A light tube is sleeved in an annular tube, so that the light source is insolated from liquid in the reactor; the gas circuit thrusting needle is connected with a diaphragm air pump or an ozone generator; a rotor flowmeter is arranged on a connecting pipeline; the diaphragm air pump or the ozone generator is connected to a controller, and the light source is also connected to the controller; asuction tube is also arranged in the reactor and is connected to an external magnetic force liquid discharging pump to realize the experiment conversion of adding and extracting the liquid quickly; and the controller sets reaction time to complete the selection control of intermittent or period programs and methods. According to the open type multichannel visual photocatalytic oxidation teaching experimental device, the photocatalytic advanced oxidation method and principle can be mastered and analyzed by the design of a multiparameter open type and multichannel parallel visual device.
Owner:XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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