In piece dyeing, the mill weaves grey cloth from undyed yarn, then dyes the whole roll. In yarn dyeing, the yarn is dyed before weaving, so the colour is already in the threads when they go on the loom. The visible result: a piece-dyed poplin is one flat colour; a yarn-dyed oxford shows a built-in check or stripe that a dye bath can never produce.
Yarn dyeing adds a dyeing step before weaving, so it typically costs a little more and leads a little longer than the equivalent piece-dyed cloth. For plain solid colours there is usually no reason to pay for it; for checks, stripes and any pattern that must survive washing, it is the right route.
Both routes run in-house: our own yarn dyeing, weaving, piece dyeing and finishing sit on one site, so a development can move between the two without a second supplier. See the full woven range or ask for a swatch card to feel the difference.
It can, but for a single flat colour there is normally no benefit over piece dyeing, and piece dyeing is usually faster and cheaper. We recommend yarn dyeing when the design needs a pattern in the cloth itself.
Not automatically. Fastness depends on the dye class and after-treatment, not on when the dye was applied. We state the fastness standard and method on every specification.