Stacked Cosmetic Sponge Incision Patterns for Smooth Release
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Solution Overview
Problem
Conventional methods for forming surface patterns on cosmetic sponges cause deformation and collapse of pore structures, leading to difficulties in smooth release of cosmetic materials.
Innovation Solution
A stacked sponge structure comprising a first block impregnated with cosmetic material and a second block with an incision pattern formed by a slit, bonded with an adhesive layer, which maintains the pore structure integrity and facilitates material release.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a recess and protrusion pattern is formed by compressing the sponge surface with a heated mold, then the uniform release of cosmetic contents is promoted, but the open-cell pore structures collapse and cell structures deform due to melting during compression
Solution Approach 1:
The patent replaces the conventional thermal compression method with a laser beam method to form surface patterns. The laser beam creates recess and protrusion patterns through ablation or localized heating without requiring mechanical compression, thereby avoiding the collapse of open-cell pore structures while still achieving the desired surface topology for cosmetic material release
Solution Approach 2:
The patent utilizes laser-induced phase transitions (vaporization, ablation, or localized melting followed by rapid cooling) to form surface patterns. This allows pattern formation through controlled material removal or restructuring rather than mechanical compression, preserving the three-dimensional pore structure while creating the necessary surface topology
2Stability of the object's composition
If a laser marking method is used to form surface patterns, then pore structure deformation is minimized, but processing time becomes excessively long
Solution Approach 1:
The patent employs periodic or pulsed laser action to form surface patterns. By using pulsed laser beams with optimized duty cycles and repetition rates, the method achieves rapid pattern formation while minimizing heat accumulation and processing time, thereby resolving the contradiction between maintaining pore structure integrity and improving productivity
Solution Approach 2:
The patent optimizes laser processing parameters including power density, pulse duration, scanning speed, and beam diameter to achieve rapid pattern formation. By adjusting these parameters, the method reduces processing time while maintaining pore structure integrity, directly addressing the productivity versus structural stability contradiction
Data Source
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AI summary
The present invention relates to: a sponge foam for cosmetic material impregnation comprising a sponge for cosmetic material impregnation, and a cosmetic product comprising same. The present invention provides the cosmetic-impregnated cosmetic product comprising: a first block including an impregnation sponge to be impregnated with a liquid cosmetic material; and a second block stacked on the first block, wherein the second block includes an incision pattern formed by a slit penetrating the second block in a thickness direction.