Responses should include information that supports the responder’s claim that the requestor has not demonstrated its capability to produce the subject product, or one substitutable, in commercial quantities in a timely manner. Responses should include all requested information as well as any other information the responder views as relevant to CITA's final determination.
Responses are due by 11:59 P.M. (EST), March 25, 2014. Rebuttals are due by 11:59 P.M. (EST), March 31, 2014.
SPECIFICATIONS: Certain Textured and Non-Textured Cuprammonium Rayon Filament Yarns
Fiber content: rayon
Yarn sizes (which include the +/-10% variance that may occur after knitting, weaving and finishing):
200 – 163.64 Nm/30 filaments (45 - 55 denier)
133.33 – 109.09 Nm/45 filaments (67.5 – 82.5 denier)
133.33 – 109.09 Nm/54 filaments (67.5 – 82.5 denier)
100 – 81.81 Nm/70 filaments (90 - 110 denier)
Yarn sizes were calculated using a conversion factor of 9000/ denier = Nm
Finish: bright raw white
Explanatory note, not part of the official announcement: Fairchild's Dictionary of Textiles (7th Edition, 1996) defines cuprammonium rayon as --
Rayon yarn or staple made by the cuprammonium process. It is a regenerate cellulose. In this process...cellulose...is dissolved in an ammoniacal copper solution. This cellulose in solution becomes the spinning solution that is extruded downward into a coagulating bath. During the stage of coagulation, the filaments are elongated in a process called stretch spinning. Then they are treated with an acid solution to remove the copper residue and then washed and dried...No longer manufactured in the United States due to the cost of cleaning waste water to meet clean water standards.
Also known as "Bemberg," cuprammonium rayon is often used as a substitute for silk, especially as a lining fabric.