Hide Barcode Traceability With Imaging-Based Quality Control

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Solution Overview

Problem

Existing methods for tracking and managing hides in the leather industry are manual, labor-intensive, and error-prone, lacking reproducibility and fungibility, despite advancements in automated data assignment.

Innovation Solution

An automated method involving inkjet printing of unique machine-readable barcodes onto hides during translation on a conveyor belt, combined with imaging and data integration using an IT system to assess and manage hide quality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual methods are used for tracking and managing hides, then flexibility in handling natural product variations is maintained, but labor intensity increases and reproducibility decreases

Engineering Contradiction:
ImproveManual handling flexibilityVSAvoidProcessing efficiency
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The patent replaces manual mechanical tracking methods with an automated imaging and data processing system. Industrial size scanners capture images of hides, and IT systems automatically analyze and track quality parameters, eliminating manual labor while maintaining accurate record-keeping and hide identification throughout the tanning process.

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

Solution Approach 2:

The patent creates digital copies of hide characteristics through imaging. High-resolution images and extracted quality parameters are stored as data representations of the physical hide, enabling automated tracking and management without physical handling while preserving all necessary information for quality control.

Inventive Principle:
Principle #26Copying

2Measurement precision

If automated imaging and data assignment are implemented, then reproducibility and measurement precision improve, but device complexity increases

Engineering Contradiction:
ImproveQuality assessment accuracyVSAvoidSystem complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent employs industrial size scanners that serve multiple functions: capturing high-resolution images, extracting quality parameters, and providing automated hide identification. This multi-functional approach achieves precise measurement while avoiding the need for separate specialized devices for each function, thereby managing system complexity.

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

Solution Approach 2:

The patent introduces an IT system as an intermediary between the imaging process and quality management. This software layer automatically processes images, extracts quality parameters, and integrates data with hide identification, simplifying the overall system architecture by centralizing data processing functions.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Device complexity

If tracking and management processes are manual, then system simplicity is maintained, but error rates increase and fungibility decreases

Engineering Contradiction:
ImproveSystem simplicityVSAvoidTracking accuracy
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent replaces manual tracking operations with automated imaging and data processing. Scanners capture hide images and quality parameters automatically, and IT systems manage tracking data without human intervention, eliminating manual errors while maintaining reliable hide identification and quality assessment throughout processing.

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

4Productivity

If in-line automated processing is implemented, then productivity and operating speed improve, but process complexity increases

Engineering Contradiction:
ImproveProcessing throughputVSAvoidProcess complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent implements continuous in-line processing where hides move through the system on a conveyor belt while being imaged and scanned without interruption. This continuous operation maximizes productivity by eliminating stop-start processing, and the automated nature of the imaging and data capture maintains simplicity despite the continuous flow.

Inventive Principle:
Principle #20Continuity of useful action

Data Source

PatentEP4567133B1Method for traceability and quality control of hides using machine-readable code identification and it integration
Publication Date: 2026.04.22 HIDEXE SA
  • EP4567133B1 patent drawingFigure 1
  • EP4567133B1 patent drawingFigure 2

AI summary

The present invention introduces an integrated system for the leather industry, combining hide quality assessment with traceability. By inkjet printing unique machine-readable barcodes to hides and linking these to quality data obtained from imaging analyses, the system ensures accurate tracking and management of hides through IT system integration. The system comprises an apparatus, comprising a conveyor belt (11) for translating the hides along an operating line of the apparatus (10), an imaging station (14) configured for imaging each hide, and a coding station (13) configured for applying a unique machine-readable code to each hide.