Smart Textile Coating for Temperature-Responsive Insulation

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Standard textile fabrics do not effectively adjust their insulation performance in response to changes in ambient temperature, limiting their adaptability and comfort in varying conditions.

Innovation Solution

A textile fabric with a smooth surface featuring a bi-component coating system, where one coating material exhibits thermal expansion or contraction in response to temperature changes, adjusting the fabric's insulation performance. This system includes a first coating material, such as a shape memory polymer, and a second coating material, like polyurethane or silicone, which are chemically or physically bonded and applied in discrete regions to alter the fabric's three-dimensional configuration based on temperature fluctuations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If standard textile fabrics are used with fixed properties during construction, then manufacturing simplicity is maintained, but adaptability to ambient temperature changes deteriorates

Engineering Contradiction:
Improveadaptability to temperature changesVSAvoidfabric structure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies parameter changes by incorporating a shape memory polymer coating that changes its physical state (crystalline vs. amorphous) in response to temperature changes. This allows the fabric to dynamically adjust its insulation properties without changing the fundamental fabric structure, resolving the contradiction between adaptability and structural complexity.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent uses composite materials by combining a standard textile fabric with a shape memory polymer coating layer. This composite structure maintains the simplicity of the base fabric while adding the adaptive functionality of the polymer coating, enabling temperature-responsive behavior without overcomplicating the overall fabric construction.

Inventive Principle:
Principle #40Composite materials

2Adaptability or versatility

If a shape memory polymer coating is applied to enable thermal response, then insulation adjustment capability is improved, but manufacturing complexity increases

Engineering Contradiction:
Improveinsulation adjustment capabilityVSAvoidcoating application process
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The patent exploits phase transitions of the shape memory polymer (crystallization and melting) as the core mechanism for insulation adjustment. The polymer transitions between crystalline (insulating) and amorphous (non-insulating) states based on temperature, providing automatic insulation adjustment without requiring complex active control systems or multi-step manufacturing processes.

Inventive Principle:
Principle #36Phase transitions

3Ease of operation

If the polymer crystallizes at higher temperature (50-100°F), then comfort in moderate climates is improved, but reliability in extreme cold conditions deteriorates

Engineering Contradiction:
Improvecomfort in moderate climatesVSAvoidperformance in extreme cold
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent applies local quality by creating discrete regions of shape memory polymer coating on the fabric surface rather than uniform coverage. This allows different areas of the fabric to have different thermal response characteristics, enabling optimization for specific climate conditions while maintaining overall fabric functionality.

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 bi-component coating system enhances the fabric's insulation performance by adjusting its configuration in response to temperature changes, providing improved comfort and adaptability across a range of temperatures, from -40°F to 100°F, by altering its three-dimensional structure to either increase or decrease thermal insulation as needed.

Implementation Method 1

one or more regions of a first coating material exhibiting thermal expansion or contraction in response to change in temperature

Methodology Applied
Scientific EffectThermal expansion: Thermal Expansion

Implementation Method 2

The polymer exhibits volume change by crystallization

Methodology Applied
Scientific EffectCrystallization: Crystallisation

Implementation Method 3

The first coating material and the second coating material exhibit differential thermal expansion to cause a change in a three dimensional configuration of the textile fabric in response to change in temperature

Methodology Applied
Scientific EffectDifferential thermal expansion: Thermal Expansion

Data Source

PatentUS8187984B2Temperature responsive smart textile
Publication Date: 2012.05.29 MORDEN MILES IND INC
  • US8187984B2 patent drawing
  • US8187984B2 patent drawing
  • US8187984B2 patent drawing

AI summary

A textile fabric includes a smooth surface with one or more regions having coating material exhibiting thermal expansion or contraction in response to change in temperature, adjusting insulation performance of the textile fabric in response to ambient conditions.