151results about How to "Improve UV protection effect" patented technology

The invention discloses a functional chinlon 6 colored fiber and a manufacturing method thereof. The colored fiber comprises the following materials in percentage by weight: 2.5 to 5 percent of modified antibacterial ultraviolet resistant functional master batch, 3.0 to 4.0 percent of colored master batch and 91 to 94.5 percent of chinlon 6 slices. The invention further discloses a manufacturing method of the functional chinlon 6 colored fiber, which comprises the following steps: a, mixing drying modified antibacterial ultraviolet resistant functional master batch, the colored master batch and chinlon 6 slices and adding the mixture in a screw extrusion machine to melt; b, extrusion spinning the mixed molten material through a metering pump, and then cooling, applying oil on and winding silk bundles for preparing chinlon 5 POY; c, stretching, thermal softening, and then cooling and false twisting the chinlon 6 POY; d, applying oil on and winding the false twisted silk bundles to obtain the finished products. The functional chinlon 6 colored fiber provided by the invention integrates triple functions of coloredness, antibacterial property and ultraviolet resistance, and reduces production processes and sewage discharge.

Disclosed is an oil-in-water emulsion sunscreen cosmetic composition which has improved ultraviolet blocking capability by containing a large amount of an ultraviolet absorbent, while having excellent emulsion stability and good usability. Specifically disclosed is an oil-in-water emulsion sunscreen cosmetic composition which is characterized by containing (A) 1-7.5% by mass of octyl methoxycinnamate, (B) 0.5-4% by mass of t-butyl methoxybenzoyl methane and / or 2-hydroxy-4-methoxybenzophenone, (C) 0.5-3% by mass of a polyoxyethylene-polyoxyalkylene alkyl ether block polymer having a specific structure and (D) not less than 10% by mass of a nonpolar oil relative to the total amount of the oil component. The oil-in-water emulsion sunscreen cosmetic composition is also characterized by having an average emulsion particle diameter of not more than 700 nm.

An O / W emulsion composition having excellent ultraviolet light blocking properties, preparation stability and feeling of use, wherein an oily organic ultraviolet absorbent such as octocrylene and a solid organic ultraviolet absorbent are blended. The O / W emulsion composition contains the components (a)-(c) mentioned below, and an oil phase containing the component (a) has an average particle diameter of not more than 700 nm. (a) an organic ultraviolet absorbent containing (a1) octocrylene, which is in an oil form at 20 DEG C (b) an organic ultraviolet absorbent selected from (b1) bis-ethylhexyloxyphenol methoxyphenyl triazine and (b2) methylene bis-benztriazolyl tetramethylbutylphenol, which is in a solid state at 20 DEG C (c) a polyoxyethylene / polyoxyalkylene alkyl ether block polymer represented by general formula (1) or (2): R1O-(PO)m-(EO)n-H (1) (In the formula, R1 represents a hydrocarbon group having 16-18 carbon atoms; PO represents an oxypropylene group; EO represents an oxyethylene group; PO and EO are added in blocks; and m and n respectively represent average mole numbers of added PO and EO and satisfy 70 > m > 4, 70 > n > 10 and n > m.) R2O-(AO)p-(EO)q-R3 (2) (In the formula, R2 and R3 may be the same or different and each represents a hydrocarbon group having 1-4 carbon atoms; AO represents an oxyalkylene group having 3-4 carbon atoms; EO represents an oxyethylene group; AO and EO are added in blocks; and p and q respectively represent average mole numbers of added AO and EO and satisfy 1 = p = 70, 1 = q = 70 and 0.2 < (q / (p + q)) < 0.8.)

Provided is a sunscreen cosmetic, which is capable of effective protection from not only UVB but also UVA, feels fresh and cool when used, and yet has excellent stability and can form a highly ultraviolet ray-protective film when applied. An oil-in-water sunscreen cosmetic characterized in comprising (a) an aqueous dispersion of an oil-soluble ultraviolet absorber, (b) one or more of crosslinking polyether-modified silicones or crosslinking alkyl polyether-modified silicones, (c) a low viscosity silicone oil, and (d) water. It is preferable that the aqueous dispersion of the oil-soluble ultraviolet absorber is an aqueous dispersion of composite particles of bisethylhexyloxyphenol methoxyphenyl triazine and an organic polymer. Additionally blending methylene bis-benzotriazolyl tetramethylbutylphenol is desirable.