Dye Sublimation Pressure Housing for Uniform Membrane Contact

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Solution Overview

Problem

Conventional dye sublimation apparatuses face issues with uneven and inconsistent pressure application between the printed sheet and substrate due to vacuum pulls, leading to air pockets and inconsistent contact, which affects the quality of the infused image.

Innovation Solution

Implementing a pressure housing that applies a positive pressure on the membrane covering the printed sheet and substrate, ensuring even and consistent contact throughout the heating cycle, complementing or alternative to negative pressure from a vacuum pump.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If vacuum pull is applied to hold the printed sheet against the substrate, then the printed sheet is held in place, but the edges of the membrane seal prior to the center causing air pockets and uneven pressure distribution

Engineering Contradiction:

Improveholding printed sheet in placeVSAvoidpressure uniformity

Core Design Contradiction:

ReliabilityVSManufacturing precision

Solution Approach 1:

The patent inverts the conventional approach by applying positive pressure from below the substrate rather than negative pressure from above the membrane. This reversal causes the printed sheet to be pulled toward the substrate uniformly from the center outward, preventing edge sealing and air pocket formation while maintaining reliable contact throughout the heating process

Inventive Principle:

Principle #13The other way round (Inversion)

2Reliability

If vacuum pull is used to press the printed sheet against the substrate, then contact is maintained, but the contact is inconsistent due to uneven vacuum distribution across the membrane surface

Engineering Contradiction:

Improvecontact maintenanceVSAvoidcontact consistency

Core Design Contradiction:

ReliabilityVSManufacturing precision

Solution Approach 1:

The patent reverses the pressure application direction by using positive pressure from below the substrate instead of negative pressure from above the membrane. This inversion creates uniform contact across the entire surface by pushing the substrate and printed sheet together from the center outward, eliminating the uneven vacuum distribution problem

Inventive Principle:

Principle #13The other way round (Inversion)

Solution Approach 2:

The patent changes the pressure parameter from negative (vacuum) to positive (pressurized air or gas), fundamentally altering how force is applied to the printed sheet-substrate assembly. This parameter change enables uniform pressure distribution and consistent contact across the entire surface area

Inventive Principle:

Principle #35Parameter changes

3Reliability

If membrane is used to enclose the printed sheet and substrate combination, then the components are held together, but air pockets form towards the center due to uneven sealing

Engineering Contradiction:

Improvecomponent holdingVSAvoidair pockets

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent inverts the pressure application approach by pressurizing from below the substrate rather than creating vacuum from above the membrane. This reversal eliminates air pockets by pushing air outward from the center toward the edges, ensuring complete contact between the printed sheet and substrate throughout the heating process

Inventive Principle:

Principle #13The other way round (Inversion)

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

Ensures uniform pressure distribution, enhancing the quality of the infused image by maintaining snug contact between the printed sheet and substrate during the heating process.

Implementation Method 1

The heat causes the dyes to sublimate from a solid state on the printed paper to a gaseous state to travel to the substrate, where the dyes are deposited as solids

Methodology Applied

Scientific EffectSublimation: Sublimation

Implementation Method 2

The pressure housing may apply a positive pressure on a membrane covering a combination of a printed sheet and a substrate. The positive pressure applied by the pressure housing may cause the printed sheet and substrate to snugly press against each other throughout a heating cycle

Methodology Applied

Scientific EffectPositive pressure application: Pressurisation

Data Source

PatentUS12594780B2Systems and methods for applying a positive pressure within a dye sublimation machine

Publication Date: 2026.04.07 SEKISUI KYDEX LLC

AI summary

An illustrative dye sublimation apparatus may comprise a pressure housing in the heating component. The pressure housing may apply a positive pressure on a membrane covering a combination of a printed sheet and a substrate. The positive pressure applied by the pressure housing may cause the printed sheet and substrate to snugly press against each other throughout a heating cycle. Furthermore, the positive pressure applied by the pressure housing may be even or approximately even throughout an upper surface of the membrane. The dye sublimation apparatus may utilize the pressure housing in addition or as an alternative to a negative pressure applied by a vacuum pump.