Transparent Nonwoven Face Mask Sheet With Wet-State Strength
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional facial masks with nonwoven structural members suffer from insufficient adhesion, low strength in a wet state, and opacity, making it difficult to confirm close adherence to the skin and effectively transfer beauty essence.
Innovation Solution
A liquid-retaining sheet with a nonwoven structural member containing solvent-spinning cellulose fibers and a meltblown adhesion layer, which maintains transparency and strength in a wet state, allowing for improved adhesion and balanced liquid retentivity and releasability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a nonwoven structural member is used in the facial mask, then the mask can retain liquid and provide skin care function, but the mask becomes opaque and adhesion is insufficient
Solution Approach 1:
The patent employs a nonwoven structural member with controlled porosity that allows light transmission while retaining liquid. The porous structure is designed to balance liquid absorption capacity with optical transparency, enabling the mask to maintain both skin care functionality and visual confirmation of adhesion.
Solution Approach 2:
The facial mask combines multiple materials including the nonwoven structural member, adhesion layer, and liquid-retaining layer into a composite structure. This composite design allows each layer to contribute its specific properties: the nonwoven layer provides liquid retention, the adhesion layer ensures skin attachment, and the overall structure maintains transparency for visual confirmation.
2Quantity of substance
If the basis weight of the facial mask is increased to retain more beauty essence, then the liquid retention improves, but the mask becomes opaque
Solution Approach 1:
The patent distributes the liquid retention function across a distributed porous network rather than concentrating mass in a single thick layer. This local quality approach allows the mask to retain sufficient beauty essence while maintaining a thin, transparent structure that enables visual confirmation of adhesion to the skin.
3Quantity of substance
If a nonwoven fabric with high liquid absorption is used, then the beauty essence transfer capability improves, but the adhesion to skin becomes insufficient
Solution Approach 1:
The patent segments the facial mask into distinct functional layers: a nonwoven structural member for liquid retention, an adhesion layer for skin attachment, and a liquid-retaining layer for beauty essence storage. This segmentation allows each layer to optimize its specific function without compromising the others, ensuring both effective beauty essence transfer and sufficient adhesion strength.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution ensures high transparency and strength in a wet state, facilitating visual confirmation of adhesion and effective transfer of beauty essence, while maintaining liquid balance and skin conformity.
Implementation Method 1
a liquid-retaining sheet which is highly transparent in a wet state in spite of a nonwoven structural member contained in the sheet
Implementation Method 2
the liquid-retaining sheet has a transparency shown below of not more than 0.27％·m 2 when the liquid-retaining sheet is in the wet state
Data Source
Figure 1
AI summary
A liquid-retaining sheet contains a liquid-retaining layer that is able to absorb a liquid component, and the liquid-retaining layer is formed from a nonwoven structural member containing a transparent fiber. In the liquid-retaining sheet, the transparency shown below is adjusted to not more than 0.27. Transparency=Whiteness%of a sheet impregnated with700%by mass of water relative to the sheet mass/Basis weightg/m2 The transparent fiber may contain a cellulose-series fiber substantially free from a carboxyl group (in particular, a regenerated cellulose fiber such as a solvent-spinning cellulose-series fiber). The proportion of the solvent-spinning cellulose-series fiber may be not less than 30% by mass in the transparent fiber. The liquid-retaining sheet may be a skin care sheet (in particular, a facial mask) that is impregnated with a liquid component containing a cosmetic preparation. The liquid-retaining sheet has an improved transparency in a wet state in spite of a nonwoven structural member contained in the sheet and shows a suitable strength in a wet state.