Loepfe YarnMaster Zenit, Instruction Manual

Page: 10 / 83

10 ZENIT
YARN CLEARING GENERAL
Accumulations of Faults
(Cluster)
ƒ
Periodic clusters (moiré)
ƒ
Non-periodic clusters
in the short, long or thin fault range which repeat them-
selves several times within a short distance.
Off-standard Bobbins (SFI / D)
Irregularities of the surface structure such as:
ƒ
Hairiness
ƒ
Neppiness
ƒ
Irregularity
ƒ
Imperfections (IPI)
Yarn Irregularities (VCV)
Disturbing diameter variations or sporadic irregularities, for
example:
ƒ
Neppiness
ƒ
Irregularity (CV)
ƒ
Imperfections (IPI)
Check length adjustable between 1–50 m
Foreign Matter (F)
Foreign matter with a color that is different from the base
color of the yarn:
ƒ
Bright foreign matter in the dyed yarn
ƒ
Dark foreign matter in the raw-white yarn
Even the smallest contrast differences are reliably detect-
ed in colored yarns.
Synthetic Foreign Matter (P)
Synthetic foreign matter (e.g. polypropylene)
ƒ
Irrespective of the color of the yarn and the foreign
matter, for example, white and transparent polypropyl-
ene in raw-white yarn
In dyed or colored yarn In raw-white yarn
Periodic
Non-periodic
Hairiness
Neppiness
Irregularity
Imperfections
Neppiness
Irregularity
Imperfections
Synthetic foreign matter in raw-white yarn