Optimized Transfer Printer With Low-Temperature Adhesive Activation

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Solution Overview

Problem

Existing transfer printing techniques require separate steps for applying adhesive and high temperatures, which are costly and inefficient, especially in DTF printing, and cannot effectively decorate uneven or irregular surfaces without pre-treatment.

Innovation Solution

An optimized printer system that integrates the application of adhesive layers directly onto a flexible backing using thermoplastic resin, eliminating the need for pounce adhesive and reducing activation temperatures to 40-50°C, enabling direct transfer application without additional steps.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If traditional DTF printing with separate adhesive application is used, then transfer can be applied to surfaces, but the process requires multiple steps and high temperatures (160-200°C)

Engineering Contradiction:

Improvetransfer application processVSAvoidprinting process steps

Core Design Contradiction:

Ease of manufactureVSDevice complexity

Solution Approach 1:

The invention merges the adhesive layer and graphical element into a single integrated transfer component. The adhesive layer is printed directly onto the flexible backing along with the graphical element, eliminating the need for separate adhesive application steps and high-temperature curing processes required by traditional DTF printing methods

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The invention changes the temperature parameter from high temperatures (160-200°C) required by traditional DTF printing to low temperatures (40-50°C) sufficient for the integrated adhesive layer to activate and bond to the surface, significantly reducing energy consumption and simplifying the application process

Inventive Principle:

Principle #35Parameter changes

2Reliability

If traditional DTF printing with separate adhesive application is used, then transfer can be applied to surfaces, but energy consumption is high due to high temperatures

Engineering Contradiction:

Improvetransfer adhesionVSAvoidheating energy

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The invention uses a composite structure with an integrated adhesive layer formulated to activate at low temperatures (40-50°C), combining the adhesive properties with the graphical element to create a unified transfer that bonds effectively without requiring high energy input

Inventive Principle:

Principle #40Composite materials

3Manufacturing precision

If screen printing is used, then high resolution and colour detail can be achieved, but uneven or irregular surfaces cannot be printed on

Engineering Contradiction:

Improveprint resolutionVSAvoidsurface compatibility

Core Design Contradiction:

Manufacturing precisionVSAdaptability or versatility

Solution Approach 1:

The invention uses a flexible backing that can conform to uneven and irregular surfaces, allowing the integrated adhesive layer and graphical element to bond to complex geometries while maintaining high print resolution and colour detail through direct digital printing technology

Inventive Principle:

Principle #30Flexible shells and thin films

4Adaptability or versatility

If pad printing is used, then uneven surfaces can be decorated, but the process requires elastic silicone pads and cannot accommodate all material types

Engineering Contradiction:

Improvesurface compatibilityVSAvoidprinting process

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The invention uses a flexible backing that can conform to uneven and irregular surfaces without requiring elastic silicone pads, combining the adaptability of pad printing with the ease of digital direct printing processes

Inventive Principle:

Principle #30Flexible shells and thin films

Solution Approach 2:

The invention replaces the mechanical pad pressing system with a digital direct printing system that deposits the integrated adhesive layer and graphical element directly onto the flexible backing, simplifying the manufacturing process while maintaining versatility across different surface types

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

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

Simplifies the transfer process, reduces energy consumption, and allows for decorating complex surfaces without pre-treatment, while maintaining high print quality and cost-effectiveness.

Implementation Method 1

a) heating said adhesive layer to a temperature of between 40 and 50° C. to activate adhesion

Methodology Applied

Scientific EffectThermal heating: Heating

Implementation Method 2

b) exposing said adhesive layer to UV radiation to cure the adhesive

Methodology Applied

Scientific EffectPhotopolymerisation: Photopolymerisation

Data Source

PatentEP4603295A1Procedure for making transfers via an optimised printer

Publication Date: 2025.08.20 MULTI GRIFFE SRL

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AI summary

The Invention describes an optimisation of the technique to create graphical elements known as transfers, which enables the elimination of steps to apply pounce adhesive and the use of particularly high temperatures to activate the adhesive element of transfers. The Invention also describes the optimisation of printing equipment to make transfers.