ASTM D6571-01
(Test Method)Standard Test Method for Determination of Compression Resistance and Recovery Properties of Highloft Nonwoven Fabric Using Static Force Loading
Standard Test Method for Determination of Compression Resistance and Recovery Properties of Highloft Nonwoven Fabric Using Static Force Loading
SCOPE
1.1 This test method covers the measurement of compression resistance and recovery properties of any type of highloft nonwoven fabric using a simplistic and economical applied static weight loading technique.
1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
1.3 The values stated in SI units are to be regarded as the standard. The values stated in parentheses are for information only.
1.4 This test method offers two options for the measurement of compression resistance and recovery properties. Option 1 contains fewer steps and is, therefore, simpler. Option 2 makes more measurements and provides more details about the behavior of a fabric under these test conditions.
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Designation:D6571–01
Standard Test Method for
Determination of Compression Resistance and Recovery
Properties of Highloft Nonwoven Fabric Using Static Force
1
Loading
This standard is issued under the fixed designation D 6571; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope 3.1.2 batting, n—a textile filling material consisting of a
continuous web of fibers formed by carding, garnetting, air
1.1 This test method covers the measurement of compres-
laying, or other means.
sion resistance and recovery properties of any type of highloft
3.1.3 compression force, n—the perpendicular force applied
nonwoven fabric using a simplistic and economical applied
to surface (s) of a material in compaction.
static weight loading technique.
3.1.4 compression recovery, n—thepropertyofamaterialto
1.2 This standard does not purport to address all of the
regain its original dimensions after release from compaction.
safety concerns, if any, associated with its use. It is the
3.1.5 compression resistance, n—the property of a material
responsibility of the user of this standard to establish appro-
to oppose its change in dimension under compaction.
priate safety and health practices and determine the applica-
3.1.6 dead-weight loading, n—in testing, a method of load-
bility of regulatory limitations prior to use.
ing in which a mass is supported solely by the specimen and
1.3 The values stated in SI units are to be regarded as the
has no other mechanical connection to the test machine. Static
standard. The values stated in parentheses are for information
loading may be considered a synonym of dead-weight loading.
only.
3.1.7 elastic loss, n—the permanent loss of specimen’s
1.4 This test method offers two options for the measurement
original dimension after the compression or tension force is
of compression resistance and recovery properties. Option 1
applied and then subsequently removed.
contains fewer steps and is, therefore, simpler. Option 2 makes
3.1.8 highloft nonwoven fabric, n—a low-density fiber net-
more measurements and provides more details about the
work structure characterized by a high ratio of thickness to
behavior of a fabric under these test conditions.
mass per unit area.
2. Referenced Documents
3.2 For definitions of other textile terms, refer to Terminol-
ogy D 123.
2.1 ASTM Standards:
2
D 123 Terminology Relating to Textiles
4. Summary of Test Method
D 5796 Test Method for Thickness of Highloft Nonwoven
3 4.1 Aspecimen (one piece of or a stack of pieces) is placed
Fabrics
between two plates and the height of the stack measured. A
2.2 ASTM Adjuncts:
weight of specified mass is placed on the top plate for a
D 2904 Practice for Interlaboratory Testing of a Textile Test
2
specified period of time. The height of the specimen with the
Method that Produces Normally Distributed Data
mass in place is measured at specified time intervals. The mass
D 2906 Practice for Statements on Precision and Bias for
2
is removed and the height of the stack is measured at specified
Textiles
time intervals. Compression resistance and recovery properties
Adjunct TEX-PAC
are calculated using the height measurements.
3. Terminology
5. Significance and Use
3.1 Definitions:
5.1 The ability of a highloft nonwoven fabric to resist
3.1.1 applied static force, n—in testing, the application of a
compression and recovery and elastic loss after compression
fixed force by action of gravity on a fixed mass.
are two basic physical properties that are measured to set
specifications for certain end-use applications. This test
1
This test method is under the jurisdiction ofASTM Committee D13 onTextiles
method provides an inexpensive alternative for highloft pro-
and is the direct responsibility of Subcommittee D13.90 on Executive.
ducers,theirsuppliersandcustomerstodeterminecompression
Current edition approved September 10, 2001. Published December 2001.
resistance, and recovery properties thus better predicting their
Originally published as D 6571–00. Last previous edition D 6571–00.
2
performance in the finished product.
Annual Book of ASTM Standards, Vol 07.01.
3
Annual Book of ASTM Standards, Vol 07.02.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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D6571–01
TABLE 1 Number of Rolls, or Pieces, of Nonwoven Material in
5.2 Compression resistance and recovery performance re-
the Lot Sample
quirements of highloft nonwovens will vary according to the
Number of Rolls, Pieces in Number of Rolls or Pieces in
end-use applicat
...
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