Multicomponent Identification Fibers for Cigarette Filter Traceability
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Solution Overview
Problem
Current anti-counterfeiting measures in the textile industry, particularly in cigarette filters, are susceptible to countermeasures such as destruction, modification, or relabeling, and there is a need for a traceable acetate tow that can be easily manufactured, detected, and integrated into cigarette filters without impacting performance or requiring regulatory approval.
Innovation Solution
Incorporating multicomponent identification fibers with distinct features such as taggant segment counts, shapes, sizes, geometrical relationships, or pointers into acetate tow bands, which can be used to track the supply chain information through imaging technology, ensuring traceability even when the acetate tow is bloomed, plasticized, or formed into a filter.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If overt anti-counterfeiting measures (watermarks, colored fibers, holograms) are used, then product identification is easily observable, but these measures are susceptible to destruction, modification, or duplication
Solution Approach 1:
The patent extracts the identification function from visible surface features and embeds it within the fiber structure itself through multicomponent construction. The taggant segments are incorporated into the fiber cross-section during manufacturing, making the identification code an intrinsic part of the material rather than an applied overlay, thus preventing destruction or modification without compromising the fiber's identity
Solution Approach 2:
The patent implements nesting by placing taggant segments inside the fiber structure. The multicomponent fiber contains multiple distinct segments (different polymers, colors, or materials) nested within a single fiber cross-section. This nested configuration allows the identification code to be hidden within the fiber itself, observable only through cross-sectional analysis, making it resistant to surface-level countermeasures while maintaining manufacturability
2Loss of information
If multicomponent identification fibers with multiple segments are used, then traceability and authentication capability are enhanced, but fiber manufacturing complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the fiber cross-section into multiple distinct taggant segments during the spinning process. Each segment can represent different supply chain information (manufacturer, location, batch). This segmentation is achieved through controlled fiber formation techniques that create discrete, countable segments within each fiber, enabling high-information encoding without requiring complex post-manufacturing processing
Solution Approach 2:
The patent utilizes parameter changes in the fiber manufacturing process to control the number, size, and distribution of taggant segments. By adjusting spinning parameters (extrusion rates, temperatures, component ratios), the system can vary the segment characteristics to encode different information. This allows flexible information encoding while maintaining compatibility with existing fiber production infrastructure, balancing traceability needs with manufacturing simplicity
3Reliability
If taggants are incorporated into fibers to track supply chain information, then product authentication is improved, but the physical properties of fibers may be altered
Solution Approach 1:
The patent maintains homogeneity by ensuring that the taggant segments are uniformly distributed and integrated into the fiber structure during manufacturing. The multicomponent fibers are formed with consistent segment patterns and compositions throughout the fiber band, ensuring that the identification code remains stable and detectable while the overall fiber properties (strength, flexibility, processing behavior) remain uniform and suitable for cigarette filter applications
Solution Approach 2:
The patent employs composite materials by combining multiple polymers or materials within the single fiber structure. The multicomponent fiber consists of different polymer components (e.g., acetate, nitrocellulose, or other filter-compatible materials) that maintain the fiber's functional properties while providing distinct, detectable segments for authentication. This composite approach allows the taggants to be structurally integrated without compromising the fiber's performance in the final filter product
Data Source
AI summary
Disclosed are fibers which contains identification fibers. The identification fibers can contain a plurality of distinct features, or taggants, which vary among the fibers and/or along the length of the identification fibers of the fibers, a fiber band, or. The disclosed embodiments also relate to the method for making and characterizing the fibers. Characterization of the fibers can include identifying distinct features, combinations of distinct features, and number of fibers with various combinations of distinct features to supply chain information. The supply chain information can be used to track the fibers, fiber band, or yarn from manufacturing through intermediaries, conversion to final product, and/or the consumer.