Biological Fiber Composite Dressing Moisture Retention

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Solution Overview

Problem

Current wound dressings, such as cotton pads and non-woven dressings, suffer from poor antibacterial properties, wound adhesion, and difficulty in removing, while facial masks face issues like rapid water evaporation and poor moisturizing capabilities, leading to inefficiencies in ingredient absorption and skin care.

Innovation Solution

A biological fiber composite dressing featuring a cloth membrane with a three-dimensional reticular structure formed by bacteria of the genus Gluconacetobacter, which combines with cloth membrane fibers to enhance moisture absorption and retention, preventing rapid evaporation and improving skin attachment comfort.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If non-woven dressings are used to provide a moist environment for wound repair, then wound healing is improved, but wound adhesion occurs when moisture is reduced

Engineering Contradiction:
Improvewound healingVSAvoidwound adhesion
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The invention uses a composite structure combining non-woven fabric and biological fiber membrane. The non-woven fabric provides initial moisture retention for wound healing, while the biological fiber membrane layer prevents adhesion when moisture decreases, creating a multi-functional dressing that resolves the contradiction between promoting healing and preventing adhesion.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

Different layers of the dressing have different properties: the non-woven fabric layer provides absorbency and moisture retention for wound healing, while the biological fiber membrane layer provides anti-adhesion properties. Each layer performs its specific function locally to resolve the contradiction.

Inventive Principle:
Principle #3Local quality

2Reliability

If sheet-like masks are used with non-woven fabric to deliver essence, then skin care is improved, but water evaporation occurs rapidly causing essence waste

Engineering Contradiction:
Improveskin care efficacyVSAvoidwater evaporation
Core Design Contradiction:
ReliabilityVSLoss of energy

Solution Approach 1:

The mask combines non-woven fabric for essence delivery with biological fiber membrane for moisture retention. The biological fiber layer reduces water evaporation while allowing essence penetration, thereby improving skin care efficacy and reducing essence waste simultaneously.

Inventive Principle:
Principle #40Composite materials

3Reliability

If higher concentration of essence is used in non-woven fabric masks to compensate for rapid evaporation, then skin care effect is improved, but essence cost increases and waste occurs

Engineering Contradiction:
Improveskin care effectVSAvoidessence waste
Core Design Contradiction:
ReliabilityVSLoss of substance

Solution Approach 1:

The composite structure allows use of lower essence concentration because the biological fiber membrane reduces evaporation losses. This maintains skin care effectiveness while reducing both cost and waste compared to high-concentration non-woven fabric masks.

Inventive Principle:
Principle #40Composite materials

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 dressing effectively absorbs and retains moisture and active ingredients, reducing waste and improving skin care efficacy by maintaining a long-lasting moisturizing effect without the need for excess ingredient absorption, thus saving costs and enhancing user experience.

Implementation Method 1

a biological fiber membrane having a third surface layer and an opposing fourth surface, wherein the biological fiber membrane is formed by bacteria of the genus Gluconacetobacter, and the fourth surface layer is combined with the first surface layer, and the fourth surface layer has a plurality of biological fibers being wound and combined with the cloth membrane fibers extending therealong

Methodology Applied
Scientific EffectCapillary action: Capillary Action

Data Source

PatentUS10682257B2Biological fiber composite dressing
Publication Date: 2020.06.16 EVOPHANCIE BIOTECH LTD
  • US10682257B2 patent drawing
  • US10682257B2 patent drawing
  • US10682257B2 patent drawing

AI summary

The present invention provides a biological fiber composite dressing. The biological fiber composite dressing includes: a cloth membrane having a first surface layer and an opposing second surface layer, wherein the cloth membrane has cloth membrane fibers; and a biological fiber membrane having a third surface layer and an opposing fourth surface layer, wherein the biological fiber membrane is formed by bacteria of the genus Gluconacetobacter, and the fourth surface layer is combined with the first surface layer, and a plurality of biological fibers being wound and combined with the cloth membrane fibers are extended along the fourth surface layer of the biological fiber membrane, such that the moisturizing effect of the dressing can be enhanced by the biological fiber membrane, thereby carrying more active ingredients.