Antistatic Fabric With Polymeric Layer For Static Dissipation

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing surface protection fabrics do not effectively dissipate static charges, which can lead to issues such as dust attraction and contamination in environments with low humidity.

Innovation Solution

A static dissipating article is created by combining a fabric layer with a polymeric antistatic layer, which includes an acrylate polymer with crosslinkable monomers and a conductive polymer layer, to effectively dissipate static charges.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If traditional adhesive-based surface protection fabrics are used, then liquid protection is provided, but static charges accumulate leading to dust attraction and contamination

Engineering Contradiction:

Improvestatic charge accumulationVSAvoidprotection effectiveness

Core Design Contradiction:

Object-affected harmful factorsVSReliability

Solution Approach 1:

The patent combines a fabric layer with a polymeric antistatic layer to create a composite material that provides both liquid protection and static dissipation. The fabric layer (woven or nonwoven) provides structural integrity and liquid barrier properties, while the polymeric antistatic layer contains conductive polymers and antistatic compounds that dissipate static charges, preventing dust attraction and contamination.

Inventive Principle:

Principle #40Composite materials

Solution Approach 2:

The patent modifies the electrical properties of the surface protection fabric by incorporating a polymeric antistatic layer with specific electrical conductivity parameters. This layer changes the surface resistivity from insulating to antistatic ranges, enabling charge dissipation while maintaining the original liquid protection capabilities of the fabric layer.

Inventive Principle:

Principle #35Parameter changes

2Object-affected harmful factors

If antistatic compounds are added to films, then static dissipation is improved, but manufacturing complexity increases

Engineering Contradiction:

Improvestatic charge dissipationVSAvoidmanufacturing process simplicity

Core Design Contradiction:

Object-affected harmful factorsVSEase of manufacture

Solution Approach 1:

The antistatic polymer is applied as a coating layer on the fabric surface before final product assembly. This preliminary application of the antistatic layer ensures that static dissipation properties are built into the structure during manufacturing, rather than requiring post-processing treatments or complex integration of separate antistatic components.

Inventive Principle:

Principle #10Preliminary action

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 article achieves fast charge decay times of less than 0.02 seconds across a range of humidity levels, effectively preventing static-related contamination and ensuring clean removal from surfaces.

Implementation Method 1

The polymeric antistatic layer comprises an acrylate polymer which can include a crosslinkable monomer... The article has a charge decay of less than 0.02 seconds at less than 30% relative humidity and greater than 16% relative humidity

Methodology Applied

Scientific EffectElectrical conduction: Conduction (electrical)

Data Source

PatentUS20250135745A1Antistatic fabric article

Publication Date: 2025.05.01 3M INNOVATIVE PROPERTIES CO

AI summary

Aspects of the present disclosure relate to antistatic articles, including systems, and methods of use thereof. The article can include a fabric layer having a first fabric side and a second fabric side, and a polymeric antistatic layer disposed in a direction towards the second fabric side. The polymeric antistatic layer comprises an antistatic polymer.