XRF-Identifiable Marker Embedding for Leather Supply Chain Tracking
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The leather production process lacks a reliable method to inherently mark animal skins and hides with information about their origin, processing history, and supply chain details, leading to loss of valuable information as hides are processed and transformed into leather products.
Innovation Solution
Applying a formulation containing XRF-identifiable markers at various stages of leather processing, allowing the markers to be securely embedded within the leather, enabling detection and analysis throughout the production process and in finished products, thereby encoding and tracking the origin, processing history, and supply chain information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If external tags and markings are used to mark hides, then information about origin and processing can be recorded, but the markings are separable from the hide and information can be lost during processing
Solution Approach 1:
The patent extracts the marking function from external tags and integrates it directly into the hide material itself through chemical embedding. The marking information is taken out of the external domain and embedded within the substrate, ensuring it cannot be separated or lost during processing.
Solution Approach 2:
The patent uses chemical intermediaries (dyes, pigments, or other substances) that can be embedded within the hide structure. These intermediaries serve as carriers for the marking information, allowing the information to be held within the material itself rather than on external surfaces.
2Productivity
If hides are processed in batches mixing from several sources, then production efficiency is improved, but all information regarding the origin of the hide is lost
Solution Approach 1:
The patent segments the marking information into individual units that can be independently embedded in each hide or batch. This allows each hide to carry its own origin information even when processed in mixed batches, enabling traceability without requiring separate processing lines.
Solution Approach 2:
The patent creates a copy of the origin information directly within the hide material through chemical marking. This internal copy ensures that the information travels with the hide through all processing stages and batch mixings, providing permanent record-keeping without affecting production flow.
3Reliability
If inherent marking of the hide is implemented, then information is encoded inseparably in the material, but the marking method must be integrated into existing processing steps
Solution Approach 1:
The patent merges the marking function with existing leather processing steps such as tanning, dyeing, or finishing. By combining the marking operation with these necessary processing steps, the system achieves inherent marking without requiring separate dedicated marking equipment or additional processing stages.
Solution Approach 2:
The patent uses substances that serve multiple functions: they act as both processing chemicals (e.g., dyes, tanning agents) and as marking carriers. This multi-functionality allows the same material to accomplish both the necessary leather treatment and the information embedding, reducing overall system complexity.
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 irreversible marking of leather products with information about their origin, processing history, and supply chain, facilitating better management and authentication, and allowing for the classification and verification of leather products throughout the supply chain.
Implementation Method 1
treating an animal skin or an unprocessed hide with a formulation comprising at least one XRF-identifiable marker
Data Source
AI summary
A process is provided for marking leather manufactured from hide with an XRF-identifiable marker, the process comprising treating a hide or processed leather with a formulation comprising at least one XRF-identifiable marker to embed said marker in the hide or processed leather, to thereby obtain a marked hide or marked leather, wherein the XRF-identifiable marker is not a native material to a hide or leather or involved in a process for its manufacturing.