Digital Printing on Clear Gel Coat for Decorative Panels

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Solution Overview

Problem

The manufacturing of decorative panels is often expensive, labor-intensive, and time-consuming, and they often fail to achieve a natural visual appearance, making them unsuitable alternatives to the surfaces they imitate.

Innovation Solution

A method of digitally printing patterns onto a clear polymer layer applied over a mold, which accurately replicates textures and patterns, using a combination of gel coats and UV curing to create a realistic and durable decorative panel.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If conventional manufacturing methods (cutting tools, tubular heaters, ink repulsion) are used to create indented decorative panels, then the panels can be produced, but the manufacturing process is expensive, labor-intensive, and time-consuming

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidproduction efficiency
Core Design Contradiction:
Ease of manufactureVSProductivity

Solution Approach 1:

The patent replaces mechanical cutting tools and tubular heaters with a digital printing system that uses inkjet technology to deposit ink on the panel surface. The ink acts as a mask during gel coat application, eliminating the need for mechanical indentation processes and significantly simplifying the manufacturing workflow while increasing production speed

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the approach from physically indenting the panel surface to chemically masking areas with ink. By changing the state of the surface (from indented to printed), the process becomes less labor-intensive and more suitable for automated production, directly addressing the contradiction between ease of manufacture and productivity

Inventive Principle:
Principle #35Parameter changes

2Manufacturing precision

If conventional manufacturing methods are used to create decorative panels, then panels can be produced, but they often have an unnatural visual appearance that fails to truly imitate the target surface

Engineering Contradiction:
Improvevisual accuracyVSAvoidmanufacturing complexity
Core Design Contradiction:
Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The patent replaces mechanical indentation methods with digital printing technology, allowing for precise reproduction of surface patterns through ink deposition. This substitution enables higher visual accuracy by using digital images to guide the printing process, ensuring that the reproduced patterns closely match the target surface appearance

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent uses digital copying of the target surface pattern through imaging and digital printing. By capturing the visual characteristics of the surface being imitated and reproducing them through precise ink deposition, the method achieves natural visual appearance while maintaining manufacturing simplicity

Inventive Principle:
Principle #26Copying

3Manufacturing precision

If digital printing is used to print patterns on a clear polymer layer, then natural visual appearance and accurate pattern replication are achieved, but additional curing steps and layers are required

Engineering Contradiction:
Improvepattern accuracyVSAvoidprocess complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent merges the pattern printing step with the gel coat application process. The ink printed on the clear polymer layer serves as a mask that defines both the pattern and the areas where gel coat should be applied, combining two functions (pattern creation and surface coating) into a single integrated process step

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent performs preliminary digital printing of the pattern on the clear polymer layer before applying the gel coat. This preliminary action establishes the pattern framework that guides subsequent manufacturing steps, ensuring pattern accuracy is achieved early in the process and maintained through final curing

Inventive Principle:
Principle #10Preliminary action

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

This method produces decorative panels with a natural visual appearance and improved textured finish, reducing manufacturing costs and time while maintaining the accuracy of the printed patterns, resulting in a more cost-effective and efficient production process.

Implementation Method 1

the first layer is cured by exposing the first layer to electron beam, ultraviolet light or heat, or is cured by the previous addition of a catalyst

Methodology Applied
Scientific EffectUV curing: Photopolymerisation

Implementation Method 2

the first layer is cured by exposing the first layer to electron beam, ultraviolet light or heat

Methodology Applied
Scientific EffectThermal curing: Heat Treatment

Data Source

PatentUS20230322016A1Decorative panel having a digitally printed pattern and printing method therefor
Publication Date: 2023.10.12 MAAX BATH
  • US20230322016A1 patent drawing
  • US20230322016A1 patent drawing
  • US20230322016A1 patent drawing

AI summary

Disclosed is a method of producing a pattern for a decorative panel. The method includes applying a clear gel coat on a mold to form a clear layer. The clear layer is cured and then digitally printed with one or more inks so as to produce a pattern on the clear layer. Also disclosed is a decorative panel including a clear layer, an opaque layer and a pattern digitally printed on the clear layer, between the clear and opaque layers, such that the pattern is visible through the clear layer.