Stitching Latex Between Translucent Substrates

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Solution Overview

Problem

The fashion industry has long considered latex fabric impossible to sew, requiring adhesives for joining instead, which poses health risks and limitations in garment construction.

Innovation Solution

A method involving placing latex between low GSM paper substrates and stitching through all layers to form secure stitches without adhesives, allowing for various sewing techniques like quilting and gathering.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If adhesive is used to join latex fabric, then the latex pieces can be joined together, but health risks and limitations in garment construction occur

Engineering Contradiction:

Improvejoint strengthVSAvoidhealth risks from adhesives

Core Design Contradiction:

StrengthVSObject-affected harmful factors

Solution Approach 1:

The patent replaces the chemical bonding mechanism (adhesive) with a mechanical bonding mechanism (stitching through latex between stabilizing layers). This substitution eliminates the health risks associated with adhesive chemicals while maintaining joint strength through physical interlocking of the stitching thread through multiple layers including the latex fabric.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Ease of manufacture

If stitching is attempted on latex fabric without protective layers, then the stitching process can proceed, but the needle will damage the latex material

Engineering Contradiction:

Improvestitching processabilityVSAvoidlatex material integrity

Core Design Contradiction:

Ease of manufactureVSStrength

Solution Approach 1:

The patent applies stabilizing layers (such as tissue paper or fabric) to the latex fabric before the stitching process. These layers act as a protective cushion that prevents the stitching needle from directly damaging the latex material. The stabilizing layers absorb the mechanical stress of needle penetration, allowing the stitching to proceed without compromising latex integrity, while still enabling strong joint formation.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

3Strength

If multiple layers including stabilizing substrates are used for stitching, then strong seams can be formed, but the device complexity increases

Engineering Contradiction:

Improveseam strengthVSAvoidmulti-layer construct complexity

Core Design Contradiction:

StrengthVSDevice complexity

Solution Approach 1:

The patent employs disposable stabilizing layers (such as tissue paper or temporary fabric layers) that are used during the stitching process to protect the latex and enable strong seam formation. After the stitching is complete, these stabilizing layers are removed or discarded. This approach allows the use of complex multi-layer constructs during manufacturing to achieve strong seams, while the final product remains relatively simple without the temporary supporting layers.

Inventive Principle:

Principle #34Discarding and recovering

Data Source

PatentUS12331442B2Methods for stitching latex and similar compounds

Publication Date: 2025.06.17 WALSH JESSICA M

AI summary

Described herein are methods and techniques for sewing natural rubber latex and similar materials, and forming garments and articles from same, via novel stitching methods that interpose natural rubber latex between two translucent substrates that entirely cover the surface of the natural rubber latex and enable new ways to manipulate natural rubber latex and similar materials without the use of adhesive.