· boucle has a hard twisted core yarn, the effect yarn is rapidly twisted round the core
so that excess yarn forms an irregular wavy, bumpy surface
· gimp is much the same as boucle, but the excess yarn forms a more regular surface
· loop yarn is the result of the excess soft spun yarn being formed into well shaped circular loops on the hard spun core
snarl yarns
· Snarl yarns are made in a similar way to loop yarns
· Except the effect yarn has a high, lively twist, so that the excess bits snarl and double up on themselves and twist together
· (Just like the lengths of cord we make on a door-knob!)
knop or button yarns
· These yarns are also made by feeding the yarns at different rates while spinning
· But this time the excess yarn of one or more of the components forms bunches
· These can be at regular or irregular intervals
slub yarns
· Slub yarn is charactorised by having,
alternating short places of thin, firm twist yarn,
with places of very thick, loose twist yarn
· The differnt areas can be at regular or irregular intervals
marl yarns
· Marl yarns are made by twistng together two or more ends of different coloured yarns
· The effect pattern is one of regular diagonal stripes of each colour
spiral and corkscrew yarns
· These are plied yarns where one yarn wraps around the other, rather than the yarns being twisted together
· A spiral yarn has a higher twist than a corkscrew yarn
· A spiral yarn usually has a thinner yarn wrapped round a thicker core
· A corkscrew yarn has a softer bulkyer yarn wrapped round a thin, firm yarn
chenille yarns
· chenille yarns have a soft, fuzzy cut pile which is bound to a core
· These yarns can be spun, but the machinery required is very specialised
· For this reason, these yarns are usually woven on a loom
· The effect yarn forms the warp, which is bound by a weft thread
· The weft thread is spaced out at a distance of twice the required length of pile
· The warp is then cut half way between each weft thread.
ribbon yarns
· These yarns are not produced by spinning
· They are finely knitted tubes, pressed flat to resemble ribbon or tape
· The ribbons are usually soft, shiny and silky
