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Liquid crystal emulsion containing lecithin and preparation method thereof

A technology of lecithin and emulsion, which is applied in the field of liquid crystal emulsion containing lecithin and its preparation, and emulsifier, which can solve the problems of poor emulsification ability and inability to form liquid crystal structure, and achieve stable structure, remarkable technological progress, and preparation method simple effect

Inactive Publication Date: 2017-10-20
广东三好科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] For the above-mentioned technical problem in the prior art, the invention provides a kind of liquid crystal emulsion containing lecithin and preparation method thereof, described this liquid crystal emulsion containing lecithin and preparation method thereof will solve the problems in the prior art When the lecithin is used as a liquid crystal emulsifier, the emulsifying ability is poor, so the technical problem that a regular liquid crystal structure cannot be formed

Method used

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  • Liquid crystal emulsion containing lecithin and preparation method thereof
  • Liquid crystal emulsion containing lecithin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A liquid crystal emulsion containing lecithin, calculated by weight percentage, its raw material composition and content are as follows:

[0033] Lecithin 3%;

[0034] Co-emulsifier 2%;

[0035] Liquid oil 20%;

[0036] Solid Lipid 3%;

[0037] Preservatives 1%;

[0038] water to 100

[0039] Described lecithin is soybean lecithin;

[0040] The auxiliary emulsifier is sorbitan fatty acid ester;

[0041] The liquid oil is caprylic capric triglyceride;

[0042] The solid lipid is a mixture of fatty alcohol (cetyl alcohol) and glyceride (glyceryl monostearate) calculated by mass ratio, that is, cetyl alcohol: glyceryl monostearate at a ratio of 1:1 ;

[0043] The preservative is diazolidinyl urea.

[0044] The preparation method of above-mentioned a kind of liquid crystal emulsion, comprises the steps:

[0045] (1) Heat the oil phase component composed of liquid oil, solid lipid, lecithin and auxiliary emulsifier to 70~90°C to obtain a uniformly dispersed oil pha...

Embodiment 2

[0050] A liquid crystal emulsion containing lecithin, calculated by weight percentage, its raw material composition and content are as follows:

[0051] Lecithin 6%

[0052] Co-emulsifier 3%

[0053] Liquid Grease 18%

[0054] Solid Lipid 5%

[0055] Preservatives 1%

[0056] water to 100

[0057] The lecithin is calculated by mass ratio of hydrogenated lecithin and egg yolk lecithin, that is, hydrogenated lecithin: egg yolk lecithin is a mixture composed of 4:1;

[0058] The auxiliary emulsifier is polyoxyethylene sorbitan fatty acid ester;

[0059] The liquid oil is caprylic capric triglyceride and jojoba oil calculated by mass ratio, i.e. caprylic capric triglyceride: jojoba oil is a mixed fat composed of 4:1;

[0060] The solid lipids are fatty alcohols (stearyl alcohol) and glycerides (glyceryl monostearate) calculated by mass ratio, that is, stearyl alcohol: glyceryl monostearate is composed of 1:1 mixture;

[0061] The preservatives are parabens.

[0062] The p...

Embodiment 3

[0068] A liquid crystal emulsion containing lecithin, calculated by weight percentage, its raw material composition and content are as follows:

[0069] Lecithin 8%

[0070] Co-emulsifier 1%

[0071] Liquid Grease 16%

[0072] Solid Lipid 7%

[0073] Preservatives 1%

[0074] water to 100

[0075] Described lecithin is hydrogenated lecithin;

[0076] The auxiliary emulsifier is fatty alcohol polyoxyethylene ether;

[0077] Described liquid grease is isopropyl palmitate;

[0078] The solid lipids are fatty alcohols, including cetyl alcohol, octadecyl alcohol and behenyl alcohol in mass ratio, namely cetyl alcohol: octadecyl alcohol: behenyl alcohol is 1:1 : a mixture of 1 composition;

[0079] The preservative is imidazolidinyl urea.

[0080] The preparation method of above-mentioned a kind of liquid crystal emulsion, comprises the steps:

[0081] (1) Heat the oil phase component composed of liquid oil, solid lipid, lecithin and auxiliary emulsifier to 70~90°C to obta...

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Abstract

The invention provides a liquid crystal emulsion containing lecithin which comprises the following components: 2-8% lecithin, 1-5% coemulsifier, 10-30% liquid grease, 1-10% solid grease, 0.01-1% of preservative and the balance of water. The invention also provides a method for preparing the liquid crystal emulsion containing lecithin. The method comprises the following steps: firstly, dissolving coemulsifier in an oil phase; simultaneously heating the oil phase and water phase to 70-90 DEG C; homogenizing the water phase; slowly adding the oil phase into the water phase; and stirring and cooling to room temperature, thereby acquiring the liquid crystal emulsion containing Maltese cross. The Maltese cross liquid crystal can be observed in the liquid crystal emulsion under a polarizing microscope. The technology according to the invention is simple and can be applied to various cosmetic formulas.

Description

Technical field: [0001] The invention belongs to the field of cosmetics and relates to an emulsifier, in particular to a liquid crystal emulsion containing lecithin and a preparation method thereof. Background technique: [0002] Liquid crystal is a thermodynamically stable phase state between crystalline states. It is in an incompletely dissolved state and has certain thermodynamic stability. In recent years, emulsions containing liquid crystal structures have attracted the attention of many scholars in the cosmetics industry. Emulsions containing liquid crystal structures are mainly composed of emulsifiers with unique structures and suitable oils to form an orderly alignment. Cosmetics contain liquid crystal structure, which can increase the stability of emulsion, enhance moisture retention, control drug release and excellent skin feel. [0003] There are six main types of liquid crystal emulsifiers, namely phospholipids, glucosides, sucrose esters, phosphate esters, oliv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/55A61K8/02A61Q19/00A61K8/37A61K8/85A61K8/92A61K8/86
CPCA61K8/553A61K8/0295A61K8/37A61K8/375A61K8/85A61K8/86A61K8/922A61K2800/10A61K2800/524A61K2800/5922A61Q19/00
Inventor 畅绍念班育安张婉萍
Owner 广东三好科技有限公司
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