ASTM D7722-11

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D7722 − 11
StandardTerminology Relating to
Industrial Textile Stitches and Seams
This standard is issued under the fixed designation D7722; 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 needle damage, n—in sewn fabrics, the partial or complete
yarn severance or fiber fusing caused by a needle passing
1.1 This terminology covers stitches and seams related to
through a fabric during sewing.
industrial textiles.
DISCUSSION—This can also be referred to as needle cuts. D1908-89
1.2 Section 3, Terminology, is categorized into two
seam, n—a line where two or more fabrics are joined, usually
subsections, specific to the two areas of specialization under
near the edge. (See also sewn seam. See Terminology
this document.
D5646 for glued seam, stapled seam, and thermally bonded
1.2.1 Section 3.1 Relating to Seams.
seam.) D6193
1.2.2 Section 3.2 Relating to Stitches.
seam allowance, n—in sewn fabrics, the distance from the
1.3 For other terms relating to textiles refer to Terminology
edge of a fabric to the parallel stitch line furthest from that
D123.
edge. D1683/D1683M, D6193
2. Referenced Documents
seam assembly, n—the composite structure obtained when
fabric(s) are joined by means of a seam. D1683/D1683M,
2.1 ASTM Standards:
D6193
D123 Terminology Relating to Textiles
DISCUSSION—A seam assembly may be described in terms of fabric
D1683/D1683M Test Method for Failure in Sewn Seams of
orientation, seam direction, seam type, stitch type, seam allowance,
Woven Apparel Fabrics
sewing thread tex number(s) and type(s) stitch density, stitch gage, and
D1908 Test Method for Needle-Related Damage Due to
3 rows of stitching. D1683/D1683M
Sewing in Woven Fabrics
D5646 Terminology Relating to Seams and Stitches Used in
seam damage, n—in sewn fabrics, an adverse change in the
Home Sewing
physical condition of one or more of the components in a
D6193 Practice for Stitches and Seams
seam which would reduce the seam acceptability such as
yarn slippage, needle damage, or fabric rupture. D6193
3. Terminology
seam efficiency, n—in sewn fabrics, the ratio, expressed as a
3.1 Definitions Relating to Seams:
percentage, of the breaking force required to rupture a sewn
seam to that required to rupture the fabric; seam strength to
double-stitched seam-finish, n—a finish for the raw edges of
fabric strength. D1683/D1683M, D6193
a plain seam, in which another row of machine stitching is
DISCUSSION—For some constructions, yarn strength and stitchtype
made through both seam allowances placed together. D1683/
can contribute to a higher seam efficiency value. D6193
D1683M, D6193
seam engineering, n—in sewn fabrics, the procedures used to
grin, v—in sewn seams, to stress a seam so that the individual
select a specific combination of sewing thread, stitch type,
stitches can be seen.
seam type, and stitch density to achieve the maximum sewn
seam strength for a particular fabric type. D1683/D1683M
ThisterminologyisunderthejurisdictionofASTMCommitteeD13onTextiles
seam failure, n—in sewn fabrics, that point at which an
and is the direct responsibility of Subcommittee D13.54 on Subassemblies.
external force (1) ruptures the sewing thread, (2) ruptures the
Current edition approved June 1, 2011. Published July 2011. DOI: 10.1520/
fabric, (3) causes excessive yarn slippage adjacent to the
D7722-11.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
stitches, or (4) causes any combination of these unacceptable
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
conditions. D1683/D1683M
Standards volume information, refer to the standard’s Document Summary page on
DISCUSSION—Despite the lack of rupture, excessive seam slippage
the ASTM website.
willeithersignificantlyreduceseamefficiency,or,resultinanunsightly
Withdrawn. The last approved version of this historical standard is referenced
on www.astm.org. appearance thus creating seam failure. D1683/D1683M
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D7722 − 11
seam interaction, n—in sewn fabrics, the net effect of the standard seam, n—a seam assembly which uses a specific
relationship between the combination of fabric, seam type, sea
...