Standard Terminology Relating to
Open-End Spinning1
This standard is issued under the fixed designation D 3888; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of the last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This terminology covers those parts of a spinning
a machine that is specific to open-end yarn production.
2. Referenced Documents
2.1 ASTM Standards:
D 123 Terminology Relating to Textiles2
2.2 Other Standards:
ISO 2205 Terminology of Drafting Arrangements
ISO 447 Terminology Relative to Cone and Cheese Winders
3. Terminology
3.1 Definitions:
collecting surface, n—in the rotor of an open-end spinning
machine, that portion of the internal surface of the rotor,
often in the form of a groove, in which the fibers are
condensed for assembly into yarn.
doffing tube, n—a component of an open-end spinning machine that is an extension to the navel and is used to guide
the withdrawn yarn en route to the take-up rollers. (See also
navel.)
feed unit, n—in an open-end spinning machine, the device
which presents the feedstock to the opening roller by either
a feed roller and feed plate combination or interacting feed
rollers. (See also opening device.)
fiber channel, n—a component of an open-end spinning
machine through which the fibers are conveyed by an air
current from the opening device to the rotor. (Syn. fiber
transport tube.) (See also opening device.)
navel, n—a component of an open-end spinning machine
located on the axis of the rotor through which the yarn is
withdrawn from the rotor and which modifies the twist of the
yarn inside the rotor.
open-end spinning machine, n—a textile machine for converting staple fiber into spun yarn by a continuous process in
which the individual fibers or groups of fibers are caused to
assemble at the open end of the forming yarn. (See Fig. 1.)
(See also a rotor-type open-end spinning machine.)
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