Varnish Surface Treatment for Post-Printing on 3D Objects

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Solution Overview

Problem

Existing manufacturing processes for consumer goods packages coated with varnish create a barrier that prevents effective post-manufacturing decoration and data addition, limiting flexibility and customization options, especially in mass customization scenarios.

Innovation Solution

A method involving enhancement of the varnish layer to accept ink, applying a secondary ink between the varnish and raw material, and optionally sandwiching it between two varnish layers, allowing for decoration and data addition post-manufacturing using digital or analogue printing systems.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a varnish layer is applied to protect the raw material, then protection and durability are improved, but the ability to accept subsequent ink application deteriorates

Engineering Contradiction:

ImproveprotectionVSAvoidability to accept ink

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent applies surface enhancement treatments (flame, plasma, corona, chemical deposition) that modify the physical and chemical parameters of the varnish layer surface. These treatments increase surface energy and create micro-roughness, transforming the varnish from an ink-repellent state to an ink-receptive state without compromising its protective function

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The surface enhancement treatment acts as an intermediary between the varnish layer and the ink. It creates a modified surface layer that serves as a bridge, allowing ink adhesion while maintaining the integrity and protective properties of the underlying varnish coating

Inventive Principle:

Principle #24Intermediary (Mediator)

2Productivity

If decoration is applied during initial manufacturing, then production efficiency is improved, but flexibility for mass customization deteriorates

Engineering Contradiction:

Improveproduction efficiencyVSAvoidflexibility for customization

Core Design Contradiction:

ProductivityVSAdaptability or versatility

Solution Approach 1:

The patent applies a preliminary protective varnish coating during initial manufacturing that is specifically designed to be later enhanced for ink reception. This preliminary action prepares the surface for future customization without committing to specific decoration content, enabling both efficient initial production and flexible later modification

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent creates a dynamic system where the varnish layer can be selectively enhanced in different areas or to different degrees based on customization requirements. The surface treatment can be applied on-demand to specific regions, allowing flexible decoration timing and location while maintaining production efficiency

Inventive Principle:

Principle #15Dynamics

3Reliability

If a robust varnish barrier is applied, then protection is improved, but the ability to add data post-manufacturing deteriorates

Engineering Contradiction:

ImproveprotectionVSAvoidability to add data

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The patent modifies the surface parameters of the robust varnish barrier through enhancement treatments that increase surface energy and create micro-anchoring structures. This allows data ink to be applied post-manufacturing without compromising the protective integrity of the original varnish barrier

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

Enables mass customization and delayed differentiation of three-dimensional objects by allowing decoration and data addition without additional substrates, maintaining graphic quality and recyclability, while adhering to regulatory standards.

Implementation Method 1

exposing the varnish to several flame treatment systems that have a lean methane and oxygen mixture while the object is being stretched

Methodology Applied

Scientific EffectFlame treatment: Combustion

Implementation Method 2

applying a plasma treatment to the varnish of about 80% nitrogen and about 20% argon mixture

Methodology Applied

Scientific EffectPlasma treatment: Plasma

Implementation Method 3

executing an enhancement to the varnish layer so the varnish receives an ink

Methodology Applied

Scientific EffectSurface enhancement: Adsorption

Data Source

PatentUS12558914B2System and method for printing on a treated surface

Publication Date: 2026.02.24 JUNO DTS LLC

AI summary

A method for safely differentiating a three dimensional object subsequent to its creation and varnish protection by means of applying and sealing a decoration and/or data between the original and a final varnish layers. The three dimensional object may be decorated and/or contain data from its original manufacturing process but it may also be protected by a varnish prior to utilizing this process. The method enables the addition of decoration and data at any time or location subsequent to the original manufacturing process. The process takes place on top of the original varnish and may be subsequently sealed by applying another varnish layer.