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Cosmetic preservative removing device

A technology for preservatives and cosmetics, applied in other chemical processes, chemical instruments and methods, liquid separation of solid adsorbents, etc., to achieve the effect of reducing the risk of adverse reactions, reducing the content of preservatives, and improving practicability

Active Publication Date: 2021-01-15
NANTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

All countries have stipulated the maximum allowable amount of paraben preservatives in cosmetics, but controlling the amount cannot fundamentally solve the adverse reactions caused by paraben preservatives to users

Method used

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  • Cosmetic preservative removing device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Preparation of Thermally Polymerized Hydroxyethyl Methacrylate / 4-Vinylpyridine (HEMA / VP) Specific Adsorbent (Spherical Particles):

[0036] (1) After mixing 4 g of hydroxyethyl methacrylate and 2 g of 4-vinylpyridine, 0.1 g of cross-linking agent polyethylene glycol dimethacrylate was added while stirring to obtain a mixed solution.

[0037] (2) Pass nitrogen into the mixed solution to remove the dissolved oxygen therein, then add 0.1g initiator azobisisobutyronitrile, and add the solution dropwise to 65°C dimethyl silicone oil under the condition of cutting off oxygen, and heat After 24 hours of polymerization reaction, solidified pellets were obtained.

[0038] (3) Collect the pellets, wash them alternately with distilled water and ethanol, and dry to obtain a HEMA / VP specific adsorbent (spherical particles).

Embodiment 2

[0040] Preparation of Photopolymerized Hydroxyethyl Methacrylate / 4-Vinylpyridine (HEMA / VP) Specific Adsorbent (Spherical Particles):

[0041] (1) After mixing 4 g of hydroxyethyl methacrylate and 2 g of 4-vinylpyridine, 0.1 g of cross-linking agent polyethylene glycol dimethacrylate was added while stirring to obtain a mixed solution.

[0042] (2) Feed nitrogen into the mixed solution to remove dissolved oxygen therein, then add 0.08g initiator 2-p-hydroxyl-2-methyl-1-phenyl-1-acetone, and then dissolve the solution under the condition of cutting off oxygen Add it dropwise into simethicone oil, and irradiate with 365nm ultraviolet rays for 15 minutes at room temperature to obtain cured pellets.

[0043] (3) Collect the pellets, wash them alternately with distilled water and ethanol, and dry to obtain a HEMA / VP specific adsorbent (spherical particles).

Embodiment 3

[0045] The test of the content change of each component after the self-made cosmetic solution flows through the HEMA / VP specific adsorbent:

[0046] In order to illustrate whether the specific adsorbent of the present invention will cause adsorption loss to typical small molecule active ingredients and macromolecular active ingredients in cosmetics while removing paraben ester preservatives. Taking the self-made cosmetic solution as an example, the components of the self-made cosmetic solution are: 1% nicotinamide, 0.2% hyaluronic acid, 0.2% methyl p-hydroxybenzoate, and 0.1% ethyl p-hydroxybenzoate.

[0047] Put 50mL self-made cosmetic solution into a PP bottle; use a PP screen that fits the mouth of the PP bottle to fix the HEMA / VP specific adsorbent provided in Example 1, and then package it in the mouth of the PP bottle. Invert and gently press the PP bottle to pour out the self-made cosmetic solution, simulate the use process, repeat the pouring 5 times, and pour about 10...

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Abstract

The invention relates to the technical field of cosmetic packaging, and discloses a cosmetic preservative removing device. The cosmetic preservative removing device comprises a preservative specific adsorbent and a screen device used for fixing the preservative specific adsorbent. The screen device comprises two layers of screens, and the preservative specific adsorbent is arranged between the twolayers of screens. The cosmetic preservative removing device is connected and formed with a cosmetic package. The device has a good specific adsorption effect on preservatives in cosmetics on the basis of not adsorbing effective components of the cosmetics, so that the purpose of reducing the content of the preservatives in cosmetic extrudate is achieved.

Description

technical field [0001] The invention relates to the technical field of cosmetic packaging, in particular to a cosmetic preservative removal device. Background technique [0002] Cosmetics are a class of chemical industrial products that are spread on the surface of the human body by smearing, spraying or other similar methods to achieve the purpose of cleaning, eliminating bad temperature, skin care, beauty and modification. Cosmetics, especially cosmetics with high water content, may be polluted by microorganisms during production, storage and use, resulting in deterioration, causing harm to the human body and losing their use value. At present, the methods to avoid microbial contamination in cosmetics are: [0003] (1) Add preservatives. Preservatives act on the cell membrane, cell wall or organelles of microorganisms to destroy cell proliferation and division, inhibit the growth and reproduction of microorganisms, and thus prevent microbial contamination of cosmetics. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D15/10B01D15/26B01J20/26B01J20/30
CPCB01D15/10B01D15/26B01J20/264
Inventor 朱强
Owner NANTONG UNIVERSITY
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