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Disclosed is a method of making an acetate tow bands comprising identification fibers which can be used for tracking and tracing the acetate tow band through at least part of the supply chain. Each identification fiber exhibits at least one distinct feature. Each group of distinguishable identificat

Disclosed is a method of making an acetate tow bands comprising identification fibers which can be used for tracking and tracing the acetate tow band through at least part of the supply chain. Each identification fiber exhibits at least one distinct feature. Each group of distinguishable identification fibers can exhibit a taggant cross-section shape, a taggant cross-section size, or combination of the same taggant cross-section shape and same taggant cross-section size. The distinct features and the number of fibers in each group of distinguishable identification fibers can represent at least one supply chain component of the acetate tow band, including the manufacturer of the acetate tow band and the customer of the acetate tow band. The identification fibers can be produced on a cellulose acetate tow line using one or more spinnerets with spinneret holes to produce the taggant cross-section shapes and/or taggant cross-section sizes.

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1. A method of making an acetate tow band comprising fibers, wherein the fibers comprise identification fibers and standard fibers,wherein the standard fibers comprise cellulose acetate,and wherein the method comprises: (a) producing the identification fibers on a first fiber production process;(b)

1. A method of making an acetate tow band comprising fibers, wherein the fibers comprise identification fibers and standard fibers,wherein the standard fibers comprise cellulose acetate,and wherein the method comprises: (a) producing the identification fibers on a first fiber production process;(b) producing the standard fibers on a second fiber production process; and(c) combining the identification fibers and the standard fibers into an acetate tow band,wherein each of the identification fibers exhibits at least one distinct feature, wherein the distinct features comprise one or more taggant cross-section shapes and/or one or more taggant cross-section sizes,wherein the identification fibers consist of 1 to 50 groups of the distinguishable identification fibers, each group of the distinguishable identification fibers being formed by the identification fibers having the same distinct feature or the same combination of the distinct features,wherein a number of the identification fibers in each group of the distinguishable identification fibers is defined as a fiber count,wherein at least one of the fiber counts corresponds to a taggant fiber count,and wherein (i) the distinct features in each group of the distinguishable identification fibers and (ii) the one or more taggant fiber counts are representative of at least one supply chain component of the acetate tow band. 2. The method of claim 1, wherein the first fiber production process and the second fiber production process correspond to a common fiber production process. 3. The method of claim 1, wherein a number of taggant fiber counts for each group of the distinguishable identification fibers ranges from 1 to 10. 4. The method of claim 1, wherein the identification fibers are produced using distinguishable spinneret holes, each group of the distinguishable spinneret holes being formed by spinneret holes having the same distinguishable spinneret hole geometry, wherein each group of the distinguishable identification fibers are produced using a corresponding group of the distinguishable spinneret holes. 5. The method of claim 4, wherein all of the distinguishable spinneret holes are contained in a single spinneret. 6. The method of claim 1, wherein a number of the taggant cross-section shapes ranges from 1 to 25. 7. The method of claim 4, wherein a portion of the distinguishable spinneret hole geometries are selected from the group consisting of triangle, circle, rectangle, square, flattened round, trapezoid, hexagon, pentagon, and D-shaped. 8. The method of claim 1, wherein a number of the taggant cross-section sizes ranges from 1 to 10, wherein a ratio of a first of the taggant cross-section sizes to an average cross-section size of the standard fibers ranges from 10:1 to 1.1:1, or wherein a ratio of a second of the taggant cross-section sizes to the average cross-section size of the standard fibers ranges from 1:10 to 1:1.1, wherein the first taggant cross-section size, the second taggant cross-section size, and the average cross-section size are determined based upon an effective diameter. 9. The method of claim 1, wherein the taggant cross-section sizes range from 1 to 30 dpf. 10. The method of claim 4, wherein the distinguishable identification fibers comprise reference fibers, wherein the reference fibers exhibit a reference cross-section size and a reference cross-section shape, wherein the reference fibers are produced using the distinguishable spinneret holes comprising reference spinneret holes. 11. The method of claim 10, wherein a ratio of at least one of the taggant cross-section sizes to the reference cross-section size ranges from 20:1 to 1.1:1, and wherein first taggant cross-section size and the reference cross-section size are determined based upon an effective diameter. 12. The method of claim 10, wherein a ratio of the reference cross-section size to at least one of the taggant cross-section sizes ranges from 20:1 to 1.1:1, and wherein the reference cross-section size and the taggant cross-section size are determined based upon an effective diameter. 13. The method of claim 4, wherein a number of each of the distinguishable spinneret holes is selected to produce each of the fiber counts. 14. The method of claim 10, wherein a number of the reference spinneret holes is selected to produce a larger number of the reference fibers than any of the fiber counts for other groups of the distinguishable identification fibers. 15. The method of claim 1, wherein the at least one supply chain component comprises a manufacturer of the acetate tow band, a manufacture site of the acetate tow band, a manufacturing line of the acetate tow band, a production run of the acetate tow band, a production date of the acetate tow band, a bale of the acetate tow band, a warehouse of the acetate tow band, a customer of the acetate tow band, or a ship-to location of the acetate tow band. 16. The method of claim 15, wherein the at least one supply chain component comprises the manufacturer of the acetate tow band and the customer of the acetate tow band. 17. The method of claim 15, wherein the at least one supply chain component comprises the manufacturer of the acetate tow band and the ship-to location of the acetate tow band. 18. A method of making an acetate tow band comprising cellulose acetate fibers, wherein the cellulose acetate fibers comprise identification fibers and standard fibers,wherein the method comprises: (a) co-producing the identification fibers and the standard fibers; and(b) combining the identification fibers and the standard fibers into the acetate tow band,wherein each of the identification fibers exhibits at least one distinct feature,wherein the distinct features comprise taggant cross-section shapes and/or taggant cross-section sizes,wherein the identification fibers consist of 1 to 20 groups of distinguishable identification fibers, each group of the distinguishable identification fibers being formed by the identification fibers having the same taggant cross-section shape, the same taggant cross-section size, or a same combination of the taggant cross-section shape and the taggant cross-section size,wherein a number of the identification fibers in each group of the distinguishable identification fibers is defined as a fiber count,wherein at least one of the fiber counts corresponds to a taggant fiber count,and wherein (i) the distinct features in each group of distinguishable identification fibers and (ii) the one or more taggant fiber counts are representative of at least one supply chain component of the acetate tow band. 19. The method of claim 18, wherein the identification fibers are produced using distinguishable spinneret holes, each group of the distinguishable spinneret holes being formed by spinneret holes having the same distinguishable spinneret hole geometry, wherein each group of the distinguishable identification fibers are produced using a corresponding group of the distinguishable spinneret holes. 20. The method of claim 19, wherein all of the distinguishable spinneret holes are contained in a single spinneret. 21. The method of claim 19, wherein a number of the taggant cross-section shapes ranges from 1 to 20, and wherein at least a portion of the spinneret hole geometries are selected from the group consisting of triangle, circle, rectangle, square, flattened round, trapezoid, hexagon, pentagon, and D-shaped. 22. The method of claim 18, wherein a number of the taggant cross-section sizes ranges from 1 to 10, wherein a ratio of at least one of the taggant cross-section sizes to an average cross-section size of the standard fibers ranges from 10:1 to 1.1:1, or wherein a ratio of at least one of the taggant cross-section sizes to the average cross-section size of the standard fibers ranges from 1:10 to 1:1.1, and wherein the taggant cross-section size and the average cross-section size are determined based upon an effective diameter. 23. The method of claim 18, wherein a number of the taggant cross-section shapes ranges from 1 to 12, a number of the taggant cross-section sizes ranges from 1 to 4, and wherein a number of taggant fiber counts for each group of the distinguishable identification fibers ranges from 1 to 10. 24. The method of claim 19, wherein the distinguishable identification fibers comprise a reference fiber, wherein the reference fiber comprises a reference cross-section size and a reference cross-section shape, wherein the reference fibers are produced using the distinguishable spinneret holes comprising reference spinneret holes; wherein a ratio of each of the taggant cross-section sizes to the reference cross-section size ranges from 20:1 to 1:20, wherein the reference cross-section size and taggant cross-section sizes are determined based upon an effective diameter. 25. The method of claim 19, wherein a number of each of the distinguishable spinneret holes is selected to produce each of the fiber counts. 26. The method of claim 24, wherein a number of the reference spinneret holes is selected to produce a larger number of the reference fibers than any of the fiber counts for other groups of the distinguishable identification fibers. 27. The method of claim 18, wherein the at least one supply chain component comprises a manufacturer of the acetate tow band, a manufacture site of the acetate tow band, a manufacturing line of the acetate tow band, a production run of the acetate tow band, a production date of the acetate tow band, a bale of the acetate tow band, a warehouse of the acetate tow band, a customer of the acetate tow band, or a ship-to location of the acetate tow band. 28. The method of claim 27, wherein the at least one supply chain component comprises a manufacturer of the acetate tow band and a customer of the acetate tow band. 29. The method of claim 27, wherein the at least one supply chain component comprises the manufacturer of the acetate tow band and the ship-to location of the acetate tow band. 30. A method of making an acetate tow band, wherein the acetate tow band comprises cellulose acetate fibers,wherein the cellulose acetate fibers comprise standard fibers and identification fibers, the method comprising (a) coproducing standard fibers and identification fibers and(b) combining the standard fibers and the identification fibers into the acetate tow band,wherein each of the identification fibers exhibits at least one distinct feature,wherein the distinct features comprise 1 to 10 taggant cross-section shapes and/or 1 to 4 taggant cross-section sizes,wherein the identification fibers consist of one or more groups of the distinguishable identification fibers, each group of the distinguishable identification fibers being formed by the identification fibers having the same taggant cross-section shape, the same taggant cross-section size, or a same combination of the taggant cross-section shape and the taggant cross-section size,wherein a number of the identification fibers in each group of the distinguishable identification fibers is defined as a fiber count,wherein each of the fiber counts corresponds to a taggant fiber count, and wherein a number of taggant fiber counts for each group of the distinguishable identification fibers ranges from 1 to 4, andwherein (i) the distinct features in each group of the distinguishable identification fibers and (ii) the taggant fiber counts are representative of a manufacturer of the acetate tow band and a customer of the acetate tow band or the manufacturer of the acetate tow band and a ship-to location of the acetate tow band.