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Liquid-retaining sheet and face mask

A technology of liquid layer and liquid state, which is applied in the field of liquid-retaining sheet and the mask formed by said liquid-retaining sheet, which can solve the problems of reduced operability, low strength, and low strength, and achieves excellent application operability and improved close adhesion. Compatibility and compatibility, and the effect of promoting absorption

Active Publication Date: 2015-04-01
LENZING AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, the non-woven fabrics described in Patent Documents 3 and 4 have low strength in a wet state because they gel the highly water-absorbent cellulose fibers having carboxyl groups to become transparent.
Therefore, when used as a facial mask, the strength required to stretch 20 to 40% in a wet state is small, and the operability for sticking is reduced, making it difficult to make it closely adhere (fit) to the skin.

Method used

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  • Liquid-retaining sheet and face mask

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0167] Uniformly open 100 parts by mass of Tencel (bright) fiber, and then make a unit area weight of 100g / m by the usual method 2 A semi-random cotton web (card web), the cotton web is placed on a punching drum (punching drum) support body with an opening ratio of 25% and a hole diameter of 0.3mm, and is continuous in the length direction at a speed of 10m / min. While moving, the entanglement process is performed with high-pressure water sprayed from above, and an entangled fiber web (nonwoven fabric) is obtained. When performing this entanglement process, two nozzles (the distance between adjacent nozzles is 20cm) provided with orifices with a diameter of 0.10mm at intervals of 0.6mm along the width direction of the fiber web are used to spray out The water pressure of the high-pressure water flow is 2.0MPa, and the water pressure of the high-pressure water flow sprayed from the second row of nozzles is 3.0MPa. Then the fiber web is placed on a flat support body with finer m...

Embodiment 2～6

[0169] Except having produced the semi-random cotton web which changed the weight per unit area shown in Table 1, it carried out similarly to Example 1, and obtained the liquid retention sheet.

Embodiment 7～9

[0171] Instead of using Tencel (light) fibers alone, Tencel (light) fibers and rayon (light) fibers are evenly mixed in the ratio shown in Table 1 to make a semi-random cotton web. Example 4 was performed in the same manner to obtain a liquid-retaining sheet.

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Abstract

A liquid-retaining sheet formed from a nonwoven fiber aggregate comprising a liquid-retaining layer capable of absorbing a liquid component, in which the liquid-retaining layer comprises transparent fibers, wherein the degree of transparency as defined below is adjusted to 0.27 or less. Transparency = degree of white (%) / basis weight (g / m2) when the water content per sheet mass has been set at 700 mass%. The transparent fibers can comprise cellulose fibers that are essentially free of carboxyl groups. Even though the liquid-retaining sheet comprises a nonwoven fiber aggregate, it is possible to improve transparency in a wet state and to realize optimal strength in a wet state. This sheet is used in a skin care sheet or face mask impregnated by a liquid component containing a cosmetic.

Description

technical field [0001] The present invention relates to a liquid-retaining sheet and a facial mask formed from the liquid-retaining sheet, which have high transparency in a wet state despite containing nonwoven fiber aggregates therein. Background technique [0002] Conventionally, skin care sheets impregnated with liquids such as cosmetics (biofilm sheets impregnated with liquids) have been used as sheets to be attached to human skin or the like. Skin care sheets, represented by masks, can easily keep the skin in a highly moist state, and various products have been developed in recent years. Among them, the mask has the function of delivering the beauty essence impregnated in the sheet constituting the mask to the skin, but in order to deliver the beauty essence to the skin, the sheet itself needs to be closely adhered to the skin. Therefore, in facial masks, various designs have been made on the sheet itself or the shape of the sheet in order to make the sheet come into g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/00A45D44/22A61K8/02A61Q19/00B32B5/26D04H1/28D04H1/4374D04H1/498
CPCB32B5/26A45D44/002D04H1/425D06M11/46D06M15/333B32B5/08B32B7/12B32B2260/021B32B2260/046B32B2262/04B32B2262/14B32B2307/402B32B2307/412B32B2307/54B32B2556/00D04H1/492Y10T442/20Y10T442/626Y10T442/659Y10T442/674Y10T442/689Y10T442/696A61K8/0212A61Q19/00B32B5/022B32B2305/22A61K8/731D04H1/4374D04H1/498D04H13/00D04H1/28B32B2250/02D04H1/4258D04H1/465D04H1/49
Inventor 落合彻中山和之清冈纯人新屋信夫守谷直晃
Owner LENZING AG
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