UV Varnish Curing Control for Sheet Embellishing Transfer

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Solution Overview

Problem

Existing sheet embellishing systems require users to manually adjust various control items to achieve the desired UV irradiation intensity for varnish curing, which is burdensome and complex.

Innovation Solution

A sheet embellishing system that includes a control device which acquires adhesivity-related information and uses job history data to propose optimal UV emission intensity settings based on past job data, reducing the user's burden in adjusting these settings.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If manual adjustment of control items is implemented to achieve desired UV irradiation intensity, then manufacturing precision of varnish curing is improved, but ease of operation deteriorates due to user burden

Engineering Contradiction:
Improvevarnish curing qualityVSAvoiduser operation burden
Core Design Contradiction:
Manufacturing precisionVSEase of operation

Solution Approach 1:

The system automatically determines optimal UV irradiation intensity values by referencing stored adhesivity-related information and job history data, eliminating the need for manual user adjustment. The control device autonomously selects parameters based on the relationship between adhesivity requirements and UV intensity, making the system self-configuring without user intervention.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system utilizes job history storage to retain information about previous processing results and adhesivity outcomes. By referencing this historical feedback data, the control device can optimize UV irradiation parameters for current jobs, continuously improving precision while reducing operational complexity through learned patterns.

Inventive Principle:
Principle #23Feedback

2Manufacturing precision

If multiple control items are adjusted to optimize UV irradiation, then manufacturing precision is improved, but device complexity increases

Engineering Contradiction:
Improveadhesivity control precisionVSAvoidcontrol system complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The system extracts and stores the essential relationship between adhesivity requirements and UV irradiation parameters in a dedicated storage unit. By separating this knowledge base from the control logic, the system simplifies the control device while maintaining high precision through referenced historical data and predetermined parameter sets.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The system pre-stores optimal control parameter values in the job history storage unit based on adhesivity-related information from previous successful operations. This preliminary preparation of parameter sets eliminates the need for complex real-time calculations and reduces device complexity while ensuring consistent manufacturing precision.

Inventive Principle:
Principle #10Preliminary action

3Ease of operation

If automatic parameter selection is implemented, then ease of operation is improved, but adaptability may deteriorate due to reliance on historical data

Engineering Contradiction:
Improveparameter setting simplicityVSAvoidflexibility for new job types
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The job history storage unit is designed to accommodate diverse adhesivity-related information and parameter combinations from various job types. The system maintains a universal database that can store and retrieve parameters for different materials, adhesivity requirements, and processing conditions, ensuring broad adaptability while keeping the interface simple for users.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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

Automatically suggests UV emission intensity settings based on historical job data, simplifying the process and reducing user intervention, thereby enhancing operational efficiency.

Implementation Method 1

a UV irradiation unit that irradiates the varnish on the sheet by UV rays

Methodology Applied
Scientific EffectUV curing: Photopolymerisation

Data Source

PatentEP4699805A1Sheet embellishing system and method
Publication Date: 2026.02.25 DUPLO CORP
  • EP4699805A1 patent drawingFigure 1
  • EP4699805A1 patent drawingFigure 2
  • EP4699805A1 patent drawingFigure 3

AI summary

A sheet embellishing system (10) performs embellishment on a sheet while conveying the sheet. The sheet embellishing system (10) includes a varnish-applying unit (46) that applies varnish having ultraviolet (UV) curability onto the sheet, a UV irradiation unit (48, 50, 66) that irradiates the varnish on the sheet by UV rays, and a control device (20). The control device (20) acquires, from a storage unit (140) that stores adhesivity-related information that is information relating to adhesivity between the varnish on the sheet and a transfer material that is to be transferred into the varnish on the sheet, and a value regarding a control item of the sheet embellishing system (10), in a correlated manner, a value of the control item of which the adhesivity-related information corresponds to the adhesivity-related information of a current job, and executes predetermined processing using the value of the control item that is acquired.