PK - What does PK stand for?
Definition of PK:
PK is the Label Planet code assigned to coloured label products to indicate that they are made with pink paper. These labels have either a permanent adhesive or a removable adhesive and are suitable for use with inkjet and laser printers.
Here is the Harvard-style citation to use if you would like to reference this definition of the term PK:
Label Planet (2020) What does PK stand for? | PK Definition. Available at: https://www.labelplanet.co.uk/glossary/pk/ (Accessed: January 1, 2023).