Standard Practice for Determining Ticket Numbers for Sewing Threads

Abstract

4.1 This system of sewing thread ticket numbers was developed to overcome the confusion arising from the use by the thread industry of a multiple number of undefined and unrelated ticketing systems. 4.2 The practice is used by sewing thread manufacturers to determine the ticket number to be assigned to a sewing thread. The ticket number is an indicator of the amount of raw fiber in the thread. It is based on greige thread rather than finished thread because finishing processes such as bleaching, dyeing, stretching, mercerizing, or sewing finish application significantly change the apparent thread size so that it may become an inadequate indicator of raw fiber present. Because of the foregoing it is not practical to verify the ticket number by sizing the finished thread. 4.3 To better understand the relationship between linear density of yarns and ticket number sizes in tex sizes, see Practice D861. 4.4 To better understand the relationship between the conversion of various yarn sizes and the ticket numbers used for sewing threads, see D2260.