ASTM D6798-02(2013)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: D6798 − 02(Reapproved 2013)
Standard Terminology Relating to
Flax and Linen
This standard is issued under the fixed designation D6798; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope hackling, v—in flax, the process of cleaning and aligning
long-line fibers to improve fineness and remove non-fibrous
1.1 This terminology covers definitions of technical terms
materials and short fibers.
related to flax and linen.
linen, n—a yarn or fabric made solely from flax fibers.
2. Referenced Documents
2.1 ASTM Standards: linen blend, n—a yarn or fabric made from a combination of
D123 Terminology Relating to Textiles
flax and other fibers.
3. Terminology
long line, n—in flax, flax fiber bundles that have a minimum
length of 50 cm.
3.1 Definitions:
bast fibers, n— in flax stems, fibers found in the layer of
over-retting, v— in flax, indicates that decomposition has
phloem of the flax stem between the inner xylem tissue and
caused excessive deterioration of bast fibers. (See retting and
the epidermis tissue.
underretting)
breaking, v—in flax stems, the crushing of the structure of the
retting, v—in flax, the process of partial biological or chemical
stem; loosening the bond between the fiber bundles and
decomposition of pectins and other components which bind
shives and breaking the shives into short pieces to facilitate
the fiber, fiber bundles, and the non-fiber structures, thereby
its removal.
facilitating removal of bast fibers from stems. (See under-
combing, v—in flax, the processing of tow so as to produce
retting and over-retting)
tops or silver which have the staple length and width suitable
scutching, v—the mechanical beating and scraping of flax
for use in the worsted spinning system.
straw subsequent to breaking to separate the shives and tow
cottonizing, v— in flax, the processing of flax fiber so as to
from the long line flax fiber.
make it suitable for use in the cotton spinning system.
shives, n—the woody parts of the flax plant which are not
decorticating, v— in flax, the process of mechanically sepa-
fibers.
rating fiber bundles from straw.
straw, n—in flax, refers to dried stems and plant parts such as
de-seeding, v—in flax, the process of removing seeds and
roots, leaves, and seed holding structures.
seed-holding structures from plants.
tow, n—in flax fibers, a combination of fiber bundles and
fiber bundle, n— in flax, group of ultimate fibers which are
ultimate fibers that have a maximum length of 50 cm.
held together in the flax stem by pectins, lignins or any
DISCUSSION—Tow can be made during any stage of processing. F
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