Pantone TPX stands for Pantone Textile Paper eXtended.
Pantone 19-2430 color chip In May of 2003, the old Pantone Textile color system was renamed 'Pantone for Fashion and Home', and all colors changed from TP to TPX . For example, Pantone 19-2430TP was changed to 19-2430TPX.
The Pantone for Fashion and Home series also contains the Pantone for Fashion and Home color selector cotton, which has fabric chips mounted on paper. These are referred to as TC. For example, the above color would be called Pantone 19-2430TC, indicating Textile Cotton.