Dual-Surface Mask Construction for Color and Shape Differentiation

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Solution Overview

Problem

Conventional masks lack distinct visual differentiation in shape and color, leading to boredom and reduced aesthetic appeal, failing to meet the desires of young consumers seeking unique experiences and fashion sense alignment with their clothing.

Innovation Solution

A manufacturing method that involves high-frequency fusion of inner and outer surface sheets with different colors and structured pleat portions, creating distinct diamond and linear shapes on the inner and outer surfaces, respectively, allowing dual color expression and enhanced aesthetic appeal.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Shape

If conventional masks use only two types (pleat-type and bird's beak-type) with limited color differentiation, then manufacturing simplicity is maintained, but visual differentiation and aesthetic appeal deteriorate

Engineering Contradiction:
Improvemask shape differentiationVSAvoidmask structure complexity
Core Design Contradiction:
ShapeVSDevice complexity

Solution Approach 1:

The mask body is divided into two distinct sheets: an inner surface sheet and an outer surface sheet. Each sheet can be independently designed with different shapes, colors, and structures. The inner surface sheet forms an inner mask body while the outer surface sheet forms an outer mask body, allowing visual differentiation without complicating the overall manufacturing process.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different regions of the mask are given different properties through the dual-sheet structure. The inner surface sheet and outer surface sheet can have different colors, patterns, and structural characteristics (such as different pleat configurations). This allows each surface to be optimized for its specific function while maintaining manufacturing simplicity.

Inventive Principle:
Principle #3Local quality

2Adaptability or versatility

If masks use identical inner and outer surface structures and colors, then manufacturing complexity is reduced, but user boredom increases and fashion sense is compromised

Engineering Contradiction:
Improvefashion adaptabilityVSAvoidmask manufacturing complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The mask is segmented into inner and outer surface sheets that can be independently designed. This allows the inner surface sheet to have one color/structure and the outer surface sheet to have a different color/structure, enabling users to express different fashion styles while maintaining a simple manufacturing process that only requires stacking and securing two separate components.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The dual-sheet mask structure serves multiple functions: it provides visual differentiation for fashion purposes, maintains simple manufacturing through standardized assembly, and allows selective visibility where users can choose which surface is exposed based on their clothing and occasion.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Quantity of substance

If masks lack visual differentiation, then manufacturing costs and complexity remain low, but consumer desire for unique experiences is not satisfied

Engineering Contradiction:
Improvematerial usage simplicityVSAvoidaesthetic versatility
Core Design Contradiction:
Quantity of substanceVSAdaptability or versatility

Solution Approach 1:

By dividing the mask into separate inner and outer surface sheets, the design enables aesthetic versatility through color and structure differentiation. Each sheet can be produced independently using simple materials and processes, then assembled together to create visually distinctive masks that satisfy consumer desire for uniqueness.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different local regions (inner vs. outer surfaces) are given different visual properties through the dual-sheet construction. The inner surface sheet can feature one color or pattern while the outer surface sheet features another, allowing the same mask to provide varied aesthetic experiences without requiring complex manufacturing.

Inventive Principle:
Principle #3Local quality

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 method enables masks with differentiated inner and outer surface structures, enhancing fashion sense and visual distinction from others, reducing boredom and manufacturing costs through simple processes.

Implementation Method 1

high-frequency fusion is performed on borders of the inner surface sheet and the outer surface sheet, thereby manufacturing a mask body

Methodology Applied
Scientific EffectHigh-frequency fusion: Ultrasonic Vibration

Data Source

PatentUS12419368B2Method of manufacturing mask having different inner and outer surface structures and mask manufactured by same method
Publication Date: 2025.09.23 PARK(KR)
  • US12419368B2 patent drawing
  • US12419368B2 patent drawing
  • US12419368B2 patent drawing

AI summary

Proposed is a method of manufacturing a mask and the mask. In the mask, an inner surface sheet and an outer surface sheet have colors different from each other, and a user is capable of wearing the mask by exposing the inner surface sheet to the outside or by exposing the outer surface sheet to the outside. In addition, since a diamond-shaped portion and a linear-shaped portion are provided on the mask, the appearance of the mask is different from a mask of other people. Furthermore, since an upper covering portion and a lower covering portion which extend from the outer surface sheet and which respectively covers an upper portion and a lower portion of the inner surface sheet are provided in band shapes, aesthetic sense may further be improved when the user wears the mask by exposing the inner surface sheet to the outside.