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Composition for blocking ultraviolet C (UV-C) radiation

A composition and ultraviolet technology, applied in the directions of cosmetic preparations, cosmetics, preparations for skin care, etc., can solve the problems of increasing air pollution and increasing the necessity of blocking UVC, and achieve the effect of excellent blocking effect.

Inactive Publication Date: 2012-09-12
AMOREPACIFIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Generally, ultraviolet rays are divided into UVC (200-290nm), UVB (290-320nm), UVAII (320-340nm), and UVAI (340-400nm) according to wavelength. Among them, UVC has high energy as short-wavelength ultraviolet rays, but most of them are caused by the ozone layer. Absorbs, so it disappears without reaching the ground
[0006] However, recently, with the acceleration of industrial society, the level of education has increased rapidly, the number of automobiles has increased, indoor and outdoor air pollution caused by heating and air conditioning has become serious, and complex factors such as ozone layer depletion and environmental pollution caused by nitrogen compounds have increased. Air Pollution
Due to this phenomenon, ozone alarms are issued from time to time. In addition, a large part of the ozone layer in the polar regions has disappeared, which increases the necessity of blocking UVC.

Method used

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  • Composition for blocking ultraviolet C (UV-C) radiation
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  • Composition for blocking ultraviolet C (UV-C) radiation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Example 1 Manufacture of cosmetic composition

experiment example 1

[0050] [Experimental Example 1] Measurement of UVC blocking power

[0051] Under the light source (100nm~290nm) that emits UVC, use 2mg / cm2 on two kinds of matrix polymethyl methacrylate (PMMA) and artificial skin (vitro skin). 2 The amount of coating was tested. The UVC detector (detector) used SPR-4001 (Luzchem), DO 9721 quantum photo-radiometer (quantum photo-radiometer) and LP 9021 UVC probe (Probe) 200-280nm (DelaOHM), and measured the transmittance to UVC. UVC transmittance measurement results are attached figure 1 As shown, the calculation of the UVC blocking power was performed according to the following mathematical formula.

[0052] Table 2

[0053]

[0054] [mathematical formula 1]

[0055] Blocking rate (%)={1-(Sm / Bm)}×100

[0056] Sm: average value of UVC transmittance of the examples

[0057] Bm: Mean value of UVC transmittance of the control group

[0058] As shown in Table 2 above, compared with Comparative Example 2 and Comparative Example 3, the UVC...

experiment example 2

[0059] [Experimental example 2] UV absorbance measurement of octyl salicylate

[0060]

[0061] Octyl salicylate is as shown in the above chemical formula 1, and its UV absorbance measurement result is as attached figure 2 shown. The UVC light absorption area is shown to be large compared to UVB and UVA.

[0062] Octyl salicylate shows two peaks in the ultraviolet C region in the ultraviolet region of 200nm to 400nm, λ max It exists around 200-220nm and shows a high absorbance 6-7 times higher than the peak in the UVB region. The absorbance in the UVA region is relatively weak, and no peaks are seen.

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Abstract

The present invention relates to a composition for blocking ultraviolet C (UV-C) radiation comprising one or more selected from the group consisting of octyl salicylate and phenyl benzimidazole sulfonic acid as an active ingredient.

Description

technical field [0001] The present invention relates to a composition for blocking ultraviolet C (UVC) containing octyl salicylate or phenyl benzimidazole sulfonic acid. Background technique [0002] It is well known that ultraviolet rays are a necessary factor for the production of vitamin D in human skin, but excessive exposure of the skin to ultraviolet rays can induce skin cancer, moles, freckles, and erythema, etc., and accelerate lipid peroxidation and wrinkles etc., thereby promoting skin aging. [0003] Therefore, recently, not only products for the purpose of blocking ultraviolet rays, that is, chemical sunscreen (sunscreen) or physical sunblock (sunblock) products, but also ultraviolet blocking agents are also added to common basic cosmetics, so as to protect the skin from ultraviolet rays. Various skin problems have been caused, and many efforts have been made to delay skin aging through skin whitening and inhibition of lipid peroxidation production. [0004] In...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/37A61K8/49A61Q17/04
CPCA61K8/37A61K8/4946A61Q17/04A61K8/49
Inventor 金亨俊吴泽珍孙义东李海光金润京崔玹卢旻秀金汉坤
Owner AMOREPACIFIC CORP
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