NPFC - TT-I-542
INK, MARKING, LAUNDRY, BLACK
|Publication Date:||15 April 1975|
This specification covers black laundry marking ink (indelible) for marking all nonsized fabric or fabrics from which the sizing has been removed, of a type suitable for use in a power-operated laundry marking machine, for marking impressions with rubber stamps, and for marking with ball point and other pens suitable for use with subject ink.
Ink covered by this specification is intended for use in the ranking of all nonsized fabrics or fabrics from which the sizing has been removed.