What does Slasher Dyed mean?
An indigo dyeing method for yarn.
Heddels explains Slasher Dyed
Slasher, or sheet, dyeing combines dyeing and sizing into a single process. Warp yarns are repeatedly passed in warp beam form through several baths of indigo dye before being sized and wound for weaving.
Slasher dyeing is considered to be lower quality than rope dyeing – the dye does not penetrate well and the color tends to be uneven. However, recent mechanical improvements have helped make it a more viable option.
Slasher dyeing machine: