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Nanofiber laminate sheet

A technology of nanofibers and composite nanofibers, applied in the field of layered sheets, can solve problems such as difficulty in pasting

Active Publication Date: 2013-03-06
KAO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, there is a problem that it is difficult to stick if the surface is dissolved with fingers or the like when sticking on the skin

Method used

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  • Nanofiber laminate sheet
  • Nanofiber laminate sheet
  • Nanofiber laminate sheet

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach 〕

[0095] Hereinafter, the present invention will be described based on preferred embodiments. The nanofiber laminated sheet (hereinafter also referred to as "laminated sheet") of the first embodiment has a layer of nanofibers of a water-insoluble polymer compound (hereinafter also referred to as "water-insoluble nanofiber layer") and a water-soluble polymer compound layer ((hereinafter also referred to as "water-soluble layer") as its basic structure. The water-soluble layer is arranged on one side of the water-insoluble nanofiber layer. It is suitable to arrange the water-soluble layer adjacent to the water-insoluble nanofiber layer Of course, depending on the specific application of the laminate, layers different from these layers can also be arranged between the water-insoluble nanofiber layer and the water-soluble layer.

[0096]The water-insoluble nanofiber layer is preferably composed of only nanofibers containing a water-insoluble polymer compound (hereinafter, the nanofi...

no. 2 Embodiment approach 〕

[0144] The embodiment described above is a laminated form of a water-insoluble nanofiber layer and a water-soluble layer, but other embodiments of the present invention include water-insoluble nanofibers and water-soluble nanofibers containing the aforementioned active ingredients. Embodiments of Nanofibrous Sheets. Hereinafter, the nanofiber sheet of this embodiment will be described. Regarding this nanofiber sheet, unless otherwise specified, the description regarding the laminated sheet of the first embodiment described above applies. The nanofiber sheet of the second embodiment has a single-layer basic structure. From the viewpoint that the structure of the nanofiber sheet can be sufficiently ensured even after the water-soluble nanofiber dissolves in water and disappears, the proportion of the water-insoluble nanofiber in the nanofiber sheet of the second embodiment is preferably 20 to 90% by mass, especially It is 30 to 90% by mass. On the other hand, the proportion o...

Embodiment 1

[0226] As the water-insoluble compound, polyvinyl butyral (trade name BM-1) manufactured by Sekisui Chemical Co., Ltd. was used. It was dissolved in an ethanol solution, adjusted to a concentration of 15%, and used as a spray liquid for the electrospinning method. Use this spray liquid, with figure 2 The shown device performs electrospinning to form each on the surface of a polyethylene terephthalate mesh (Volteing Crosteron T-No. 100T, TOKYO SCREEN CO., LTD) disposed on the surface of the current collector 33. Square meter unit weight 5g / m 2 layer of water-insoluble nanofibers. The conditions of the electrospinning method were set as follows.

[0227] · Applied voltage: 26kV

[0228] ·Distance between capillary and current collector: 120mm

[0229] ·Spray volume of aqueous solution: 1.0ml / h

[0230] ·Environment: 26℃, 40%RH

[0231] Next, Hayashibara Shoji pullulan was used as a water-soluble compound. This was dissolved in warm water at 80° C. to obtain an aqueous s...

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Abstract

Disclosed is a nanofiber laminate sheet comprising a layer of nanofibers composed of a water-insoluble polymeric compound and a layer of a water-soluble polymeric compound containing a cosmetic component or a medicinal component. Preferably, the nanofibers are colored. Preferably, the layer of the water-soluble polymeric compound comprises a layer of nanofibers composed of a water-soluble polymeric compound containing the above-mentioned active ingredient. The nanofiber laminate sheet can be used suitably as a sheet-shaped make-up cosmetic.

Description

technical field [0001] The present invention relates to sheets having a layer of nanofibres, which are particularly suitable for cosmetic, medical, etc. applications. Background technique [0002] Nanofibers are used, for example, in fields requiring optical properties such as high transparency utilizing the effect of the nanometer size. As an example, by setting the diameter of the nanofibers to be equal to or less than the wavelength of visible light, a transparent fabric can be realized. In addition, by setting the diameter of the nanofiber to be the same as the wavelength of visible light, structural coloration can be achieved. In addition, the use of high specific surface area effect is being studied for fields requiring high adsorption characteristics and high surface activity; the use of high molecular alignment effect for fields requiring mechanical properties such as tensile strength and high electrical conductivity. Nanofibers having such characteristics can be u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/81A61K8/02A61K8/67A61K8/73A61L15/16A61Q1/02A61Q19/00B32B5/26
CPCA61K8/8129A61Q1/02A61K8/0233A61K8/02A61K8/81A61K8/0208A61K8/67A61L15/44A61Q19/08A61K9/7007A61L15/16A61K8/676A61Q1/00A61Q19/00A61L2400/12A61K9/70B32B5/26A61K8/027A61K2800/413A61K8/73A61K2800/412
Inventor 东城武彦石川雅隆山崎律子矢后祐子伊藤元章山下好美
Owner KAO CORP
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