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A cosmetic preservative removal device

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

Active Publication Date: 2022-06-21
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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  • A cosmetic preservative removal device
  • A cosmetic preservative removal device
  • A cosmetic preservative removal 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 a crosslinking agent polyethylene glycol dimethacrylate was added while stirring to obtain a mixed solution.

[0037] (2) Pour nitrogen into the mixed solution to remove the dissolved oxygen therein, then add 0.1 g initiator azobisisobutyronitrile, drop the solution into 65°C dimethyl silicone oil under the condition of isolating oxygen, and heat The polymerization reaction was carried out for 24 h to obtain solidified pellets.

[0038] (3) Collecting pellets, alternately washing with distilled water and ethanol, and drying 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 a crosslinking agent polyethylene glycol dimethacrylate was added while stirring to obtain a mixed solution.

[0042] (2) nitrogen was introduced into the mixed solution to remove the dissolved oxygen therein, 0.08g of initiator 2-p-hydroxy-2-methyl-1-phenyl-1-acetone was added, and then the solution was separated from oxygen It was added dropwise to dimethyl silicone oil, and at room temperature, 365nm ultraviolet rays were irradiated for 15 minutes to obtain cured pellets.

[0043] (3) Collecting pellets, alternately washing with distilled water and ethanol, and drying to obtain a HEMA / VP specific adsorbent (spherical particles).

Embodiment 3

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

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

[0047] 50 mL of the self-made cosmetic solution was put into a PP bottle; the HEMA / VP specific adsorbent provided in Example 1 was fixed with a PP mesh that fits with the mouth of the PP bottle, and then it was packaged in the mouth of the PP bottle. Invert the PP bottle and pour out the self-made cosmetic solution, simulate the use process, repeat the pouring 5 times, pour about 10 mL at a time, and then measure t...

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Abstract

The invention relates to the technical field of cosmetic packaging, and discloses a cosmetic antiseptic removal device. The cosmetic preservative removal device includes a preservative-specific adsorbent and a screen device for fixing the preservative-specific adsorbent, the screen device includes two layers of screens, and the preservative-specific adsorbent Set in the middle of the two layers of screens. The cosmetic preservative removing device is connected with the packaging of cosmetics and formed. On the basis of not absorbing the active ingredients of the cosmetics, the device has a better specific adsorption effect on the preservatives in the cosmetics, so as to achieve the purpose of reducing the content of the preservatives in the extruded cosmetics.

Description

technical field [0001] The invention relates to the technical field of cosmetic packaging, in particular to a cosmetic preservative removing 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 temperatures, skin care, beauty and modification. Cosmetics, especially those with high water content, may be contaminated 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 organelle of microorganisms, destroy cell proliferation and division, inhibit the growth and reproduction of microorganisms, and then play a role in preventing microbial contaminatio...

Claims

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Application Information

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