Anti-counterfeiting Lyocell Fiber Encoding via Amino Acid Metal Chelates
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Solution Overview
Problem
Current anti-counterfeiting technologies in China lack advanced intelligent automation and effective methods for tracking and identifying anti-counterfeiting fibers, with existing solutions providing only moderate anti-counterfeiting effects and limited integration of amino acid metal chelates in material preparation.
Innovation Solution
The development of an anti-counterfeiting lyocell fiber using an amino acid metal chelate as a tracer, integrated into the fiber production process through a specific method involving the dissolution of the chelate and cellulose pulp in an aqueous cellosolve solution, followed by wet spinning, which allows for the encoding and decoding of the fiber's authenticity based on the type and amount of amino acids and metal ions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional anti-counterfeiting fibers (thermochromic, photochromic, fluorescent) are used, then anti-counterfeiting identification is achieved, but tracking and identification effectiveness is limited with moderate anti-counterfeiting effect
Solution Approach 1:
The invention changes the chemical composition parameters of the fiber by incorporating specific amino acid metal chelates (such as copper-glycine chelate, copper-L-histidine chelate, copper-L-lysine chelate, or copper-L-methionine chelate) at controlled content ratios (0.1-5% by mass), creating unique chemical fingerprints that enable both identification and tracking of the fiber
Solution Approach 2:
The invention creates a composite fiber structure by combining conventional fiber materials with amino acid metal chelates, integrating multiple functions (mechanical strength, anti-counterfeiting identification, and tracking capability) into a single material system
2Reliability
If amino acid metal chelates are added to the fiber, then anti-counterfeiting strength and tracking capability are improved, but the fiber preparation process becomes more complex
Solution Approach 1:
The amino acid metal chelates are pre-synthesized and prepared before fiber production, allowing for controlled incorporation into the fiber during the spinning process. This preliminary preparation simplifies the overall process by avoiding complex post-processing steps
Solution Approach 2:
The amino acid metal chelates serve as intermediary substances that bridge the gap between conventional fiber production and anti-counterfeiting functionality, being easily incorporated during the wet spinning process without requiring separate complex manufacturing steps
3Loss of information
If amino acid metal chelates are incorporated into the fiber, then unique identification and tracking are enabled, but the detection and measurement methods become more complex
Solution Approach 1:
The invention utilizes the characteristic color reactions of different amino acid metal chelates when exposed to specific reagents or conditions, enabling visual or instrument-based detection through colorimetric methods that are relatively simple to implement
Solution Approach 2:
The invention replaces complex mechanical or physical tracking systems with chemical identification methods, using the unique chemical composition (amino acid metal chelate types and ratios) as a fingerprint that can be detected through straightforward chemical analysis techniques
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
The resulting anti-counterfeiting lyocell fiber offers high anti-counterfeiting strength with memory tracking properties, maintaining the macroscopic structure and physical properties of the fiber, and enabling secure identification through detection of amino acid and metal ion ratios, providing a simple and effective anti-counterfeiting solution.
Implementation Method 1
dissolving at least one amino acid metal chelate and a cellulose pulp in an aqueous solution of a cellos_solve to obtain a spinning solution
Implementation Method 2
performing wet spinning using the spinning solution to obtain an anti-counterfeiting lyocell fiber
Data Source
AI summary
The present invention provides a preparation method of an anti-counterfeiting lyocell fiber, including the following steps: dissolving at least one amino acid metal chelate and a cellulose pulp in an aqueous solution of a cellosolve to obtain a spinning solution, and then performing wet spinning using the spinning solution to obtain an anti-counterfeiting lyocell fiber, wherein the amino acid metal chelate account for 0.2% to 0.6% of the total mass of the anti-counterfeiting lyocell fiber. The anti-counterfeiting lyocell fiber of the present invention uses an amino acid metal chelate for encryption, and the process is simple. The prepared product can be provided with one or two passwords based on the ratio of metal ions and the amino acids, so that the product prepared from this fiber has the advantages of memory tracking properties, identification function and high anti-counterfeiting capability grade.