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Water-in-oil type sun block with low viscosity and high suspending capacity and preparation method of water-in-oil type sun block

A water-in-oil type, sunscreen lotion technology, applied in the directions of medical preparations containing active ingredients, preparations for skin care, pharmaceutical formulas, etc. The effect of reducing the dosage, high suspending capacity and reducing the cost of raw materials

Inactive Publication Date: 2017-11-03
GUANGZHOU OUSIA IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the viscosity of the emulsion containing powder is low, the powder will precipitate out because it cannot be suspended
If the amount of suspending agent is increased, the viscosity of the emulsion will increase and the spreadability will be poor

Method used

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  • Water-in-oil type sun block with low viscosity and high suspending capacity and preparation method of water-in-oil type sun block

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A water-in-oil type sunscreen with low viscosity and good suspending ability, by weight percentage, comprising:

[0036] Hydrophilic silica 0.2%;

[0037] Suspending agent: magnesium aluminum silicate (Veegum Gel) 0.5%;

[0038] Water-in-oil emulsifier: cetyl polyethylene glycol / polypropylene glycol-10 / 1 polymethylsiloxane (EM90 composite emulsifier) ​​1%;

[0039] Inorganic sunscreen: titanium dioxide 15%;

[0040] Oil phase: dodecamethylcyclohexasiloxane 50%, polydimethylsiloxane 8%, mineral oil 3%, isopropyl myristate 8%;

[0041] Water phase: deionized water 14.05%;

[0042] Additives: methylparaben 0.15%, essence 0.1%.

Embodiment 2

[0044] A water-in-oil type sunscreen with low viscosity and good suspending ability, by weight percentage, comprising:

[0045] Hydrophilic silica 0.2%;

[0046] Suspending agent: magnesium aluminum silicate (Veegum Gel) 0.5%;

[0047] Water-in-oil emulsifier: PEG-10 polydimethylsiloxane (KF6017 silicone oil emulsifier) ​​0.8%, polyglycerol-2 diisostearate (PG321S non-silicone oil emulsifier) ​​0.2%;

[0048] Inorganic sunscreen: titanium dioxide 15%;

[0049]Oil phase: dodecamethylcyclohexasiloxane 50%, polydimethylsiloxane 8%, mineral oil 3%, isopropyl myristate 8%;

[0050] Water phase: deionized water 14.05%;

[0051] Additives: methylparaben 0.15%, essence 0.1%.

Embodiment 3

[0053] A water-in-oil type sunscreen with low viscosity and good suspending ability, by weight percentage, comprising:

[0054] Hydrophilic silica 0.2%;

[0055] Suspending agent: magnesium aluminum silicate (Veegum Gel) 0.5%;

[0056] Water-in-oil emulsifier: cetyl polyethylene glycol / polypropylene glycol-10 / 1 polymethylsiloxane (EM90 composite emulsifier) ​​1%;

[0057] Inorganic sunscreen: titanium dioxide 15%;

[0058] Oil phase: dodecamethylcyclohexasiloxane 40%, polydimethylsiloxane 8%, mineral oil 3%, isopropyl myristate 8%;

[0059] Water phase: deionized water 24.05%;

[0060] Additives: methylparaben 0.15%, essence 0.1%.

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PUM

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Abstract

The invention provides water-in-oil type sun block with low viscosity and high suspending capacity and a preparation method of the water-in-oil type sun block. The water-in-oil type sun block is mainly prepared from the following components in percentage by weight: 0.1 to 3 percent of hydrophilic silicon dioxide, 0.1 to 3 percent of a suspending agent, 0.2 to 3 percent of a water-in-oil emulsifier, 5 to 20 percent of an inorganic sun screener, 10 to 80 percent of an oil phase and 5 to 30 percent of a water phase, wherein the suspending agent is one of magnesium aluminum silicate and magnesium lithium silicate. Through the cooperation of the hydrophilic silicon dioxide and the magnesium aluminum silicate or the magnesium lithium silicate, the sun block provided by the invention has the advantages of high suspending capacity, low viscosity and high smearing performance, and is excellent in stability under conditions of low temperature, high temperature, freezing and thawing cycling and cold-thermal cycling; moreover, the use amount of the emulsifier is reduced, and the raw material cost is reduced.

Description

technical field [0001] The invention relates to sunscreen lotion, which belongs to the technical field of cosmetics, in particular to a water-in-oil sunscreen lotion with low viscosity and good suspending ability. Background technique [0002] Sunscreen is applied to the skin to protect the skin from ultraviolet rays, which can prevent the production and accumulation of melanin. Sunscreens are generally divided into two types: oil-in-water (O / W) and water-in-oil (W / O). Water-in-oil sunscreens are more water-resistant and skin-friendly than oil-in-water sunscreens. Water-in-oil sunscreen is an emulsion formed by dispersing the oil phase in the water phase. When the water-in-oil type sunscreen has a low water content, the formed emulsion is difficult to be stable due to the disparity in the ratio of the water phase and the oil phase, and separation is easy to occur. [0003] At present, a foundation cream in the form of a water-in-oil emulsion is disclosed in the existing C...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/25A61K8/06A61K8/26A61K8/29A61K8/27A61Q17/04
CPCA61K8/064A61K8/25A61K8/26A61K8/27A61K8/29A61K2800/592A61Q17/04
Inventor 罗嵘陈晓朋
Owner GUANGZHOU OUSIA IND CO LTD