Polyvinyl Alcohol Fabric Embossing Without Heat or Molds

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Solution Overview

Problem

Existing methods for embossing and debossing fabrics require the use of heat and pressure with a mold, limiting the ability to create designs without a physical template.

Innovation Solution

Applying a composition of at least 90% hydrolyzed polyvinyl alcohol to the fabric in the shape of a design, which dries to create an embossed or debossed effect without the need for a mold or heat and pressure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If heat and pressure are applied with a mold to emboss or deboss fabric, then a defined embossed or debossed design is achieved, but the process requires complex equipment and a physical mold template

Engineering Contradiction:

Improvedesign definitionVSAvoidmold and pressure equipment

Core Design Contradiction:

Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent replaces the mechanical embossing system (mold, heat, and pressure equipment) with a chemical system using polyvinyl alcohol composition. The chemical composition is applied directly to the fabric in the desired design pattern, and upon drying, it creates the embossed or debossed effect without requiring physical contact with a mold or application of mechanical pressure.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The polyvinyl alcohol composition serves as an intermediary substance that carries the design pattern onto the fabric. Instead of using a physical mold to transfer the design, the chemical composition itself becomes the medium through which the design is applied and fixed on the fabric surface.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Manufacturing precision

If a physical mold is used for embossing or debossing, then consistent design replication is achieved, but the process lacks flexibility for artistic or custom designs

Engineering Contradiction:

Improvedesign consistencyVSAvoiddesign flexibility

Core Design Contradiction:

Manufacturing precisionVSAdaptability or versatility

Solution Approach 1:

The invention transitions from a static mold-based system to a dynamic application system. The polyvinyl alcohol composition can be applied in various patterns, shapes, and designs directly onto the fabric using different tools or methods, allowing the design to be changed freely without replacing physical molds. This provides both consistency (through controlled application) and flexibility (through varied design possibilities).

Inventive Principle:

Principle #15Dynamics

3Manufacturing precision

If mechanical embossing with heat and pressure is used, then a raised or depressed design is created, but the process is time-consuming and requires multiple steps

Engineering Contradiction:

Improveemboss depthVSAvoidprocess speed

Core Design Contradiction:

Manufacturing precisionVSProductivity

Solution Approach 1:

The polyvinyl alcohol composition is pre-prepared in the desired design pattern before application to the fabric. This eliminates the need for time-consuming mechanical pressing and heating steps during the actual embossing process. The design is essentially pre-formed in the chemical composition, which then simply needs to be applied and dried on the fabric.

Inventive Principle:

Principle #10Preliminary action

4Reliability

If traditional embossing methods are used, then a permanent design is achieved, but the process requires harsh conditions (heat and pressure) that may damage sensitive fabrics

Engineering Contradiction:

Improvedesign permanenceVSAvoidfabric damage

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The invention changes the parameters of the embossing process from high temperature and high pressure to ambient temperature and atmospheric pressure. The polyvinyl alcohol composition is applied at room temperature and dried under normal conditions, eliminating the harsh thermal and mechanical stresses that could damage sensitive or delicate fabrics while still achieving permanent embossed or debossed effects.

Inventive Principle:

Principle #35Parameter changes

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 method allows for the creation of raised or depressed designs on fabrics without a mold, maintaining stability through multiple wash and dry cycles, and enabling artistic effects on various fabric types.

Implementation Method 1

drying the fabric. Upon the fabric drying, the surface of the fabric is embossed and/or debossed in the shape of the design

Methodology Applied

Scientific EffectEvaporation: Evaporation

Data Source

PatentUS9982385B2Compositions and methods for embossing and debossing fabrics

Publication Date: 2018.05.29 CRAYOLA LLC

AI summary

The present invention provides methods for chemically embossing and debossing fabric. A composition comprising polyvinyl alcohol is applied to fabric in the shape of a design, and the fabric is dried. Upon the fabric drying, the surface of the fabric is embossed and/or debossed in the shape of the design. In particular embodiments, the composition comprises polyvinyl alcohol that is at least about 90% hydrolyzed. A kit for embossing and/or debossing fabric includes a composition comprising polyvinyl alcohol inside of a container, and one or more applicators.