Flat Viscose Fiber Transparency in Cosmetic Masks
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Solution Overview
Problem
Conventional viscose fibers are not suitable for producing transparent cosmetic masks due to their low transparency and limited water retention capacity, which affects the uniform delivery of lotions and aesthetic appeal.
Innovation Solution
The use of flat viscose fibers with a specific width-to-thickness ratio of 6:1 to 30:1 and a titre ranging from 1.0 to 4 dtex, which enhances transparency and moisture management, allowing for improved adhesion and lotion delivery in cosmetic masks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If conventional viscose fibers are used for producing cosmetic masks, then the water retention capacity and lotion absorption are improved, but the transparency is insufficient
Solution Approach 1:
The patent applies parameter changes by modifying the physical dimensions of viscose fibers, specifically reducing the width-to-thickness ratio to 6:1 to 30:1 and controlling the titre within 1.0 to 4 dtex. This dimensional transformation allows the fiber to maintain its water retention properties while achieving sufficient transparency for cosmetic mask applications.
2Illumination intensity
If Lyocell or cupro fibers are used to achieve high transparency, then the transparency is improved, but the water retention capacity and lotion absorption are reduced
Solution Approach 1:
The patent employs copying by replicating the transparent structure characteristics of Lyocell and cupro fibers while using viscose material. By copying the geometric configuration (flat cross-section with specific width-to-thickness ratio) rather than the material composition, the invention achieves transparency similar to Lyocell/cupro while retaining the superior water absorption and lotion delivery properties of viscose.
3Quantity of substance
If standard viscose fibers with crenulated surface are used, then the lotion absorption is improved, but the transparency is reduced due to light scattering
Solution Approach 1:
The patent applies local quality by differentiating the surface characteristics of the fiber. The invention maintains the crenulated surface structure for optimal lotion absorption while controlling the overall fiber geometry (flat cross-section with width-to-thickness ratio of 6:1 to 30:1) to ensure transparency. This localized differentiation allows different parts of the fiber to fulfill different functions.
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 achieves transparent cosmetic masks with a transparency index of 1,000 or more, comparable to or exceeding that of Lyocell fibers, while maintaining better moisture retention and lotion absorption than masks made from Lyocell or cupro fibers.
Implementation Method 1
standard viscose fibres have a crenulated fibre surface on which light is scattered and reflected. For this reason, papers and nonwoven fabrics made of standard viscose fibres are non-transparent
Data Source
AI summary
The present invention relates to the use of a viscose fibre for the production of a transparent cosmetic mask. The use according to the invention is characterized in that the viscose fibre is a flat fibre, the cross section of the viscose fibre has a width-to-thickness ratio of 6:1 to 30:1, and the titre of the viscose fibre ranges from 1.0 dtex to 4 dtex.