ASTM D6571-01e1

Standard Test Method for Determination of Compression Resistance and Recovery Properties of Highloft Nonwoven Fabric Using Static Force Loading (Withdrawn 2008)

SIGNIFICANCE AND USE
The ability of a highloft nonwoven fabric to resist compression and recovery and elastic loss after compression are two basic physical properties that are measured to set specifications for certain end-use applications. This test method provides an inexpensive alternative for highloft producers, their suppliers and customers to determine compression resistance, and recovery properties thus better predicting their performance in the finished product.
Compression resistance and recovery performance requirements of highloft nonwovens will vary according to the end-use application. Furniture, bedding apparel, and industrial applications do not require the same property values to satisfy their individual consumers. They will require resistance to compression and the ability to recover to some degree.  
Option 1 of this test method is used in the trade for the acceptance testing of commercial shipments. Compression recovery graphs from Option 2 can be helpful in comparing performance of different highloft nonwoven fabrics.
In case of a dispute arising from differences in reported test results when using this test method, the purchaser and the supplier should conduct comparative tests to determine if there is a significant statistical bias between their laboratories. Competent statistical assistance is recommended for the investigation of bias. As a minimum, the two parties should take a group of test samples that are as homogeneous as possible and that are from a lot of material of the type in question. The test samples should be randomly assigned in equal numbers to each laboratory for testing. The average results from the two laboratories should be compared using an appropriate statistical test for unpaired samples and an acceptance probability level chosen by the two parties before the testing is begun. If a bias is found, either its cause must be found and corrected or the purchaser and the supplier must agree to interpret future test results with consideration o...
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.

General Information

• Status: Historical
• Publication Date: 09-Sep-2001
• ICS: 59.080.30 - Textile fabrics
• Technical Committee: D13 - Textiles
• Drafting Committee: D13.90 - Executive

Standards Content (Sample)

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
e1
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
e NOTE—Added research report reference to Section 12 editorially in March 2008.
1. Scope D 2906 Practice for Statements on Precision and Bias for
2
Textiles
1.1 This test method covers the measurement of compres-
Adjunct TEX-PAC
sion resistance and recovery properties of any type of highloft
nonwoven fabric using a simplistic and economical applied
3. Terminology
static weight loading technique.
3.1 Definitions:
1.2 This standard does not purport to address all of the
3.1.1 applied static force, n—in testing, the application of a
safety concerns, if any, associated with its use. It is the
fixed force by action of gravity on a fixed mass.
responsibility of the user of this standard to establish appro-
3.1.2 batting, n—a textile filling material consisting of a
priate safety and health practices and determine the applica-
continuous web of fibers formed by carding, garnetting, air
bility of regulatory limitations prior to use.
laying, or other means.
1.3 The values stated in SI units are to be regarded as the
3.1.3 compression force, n—the perpendicular force applied
standard. The values stated in parentheses are for information
to surface (s) of a material in compaction.
only.
3.1.4 compression recovery, n—thepropertyofamaterialto
1.4 This test method offers two options for the measurement
regain its original dimensions after release from compaction.
of compression resistance and recovery properties. Option 1
3.1.5 compression resistance, n—the property of a material
contains fewer steps and is, therefore, simpler. Option 2 makes
to oppose its change in dimension under compaction.
more measurements and provides more details about the
3.1.6 dead-weight loading, n—in testing, a method of load-
behavior of a fabric under these test conditions.
ing in which a mass is supported solely by the specimen and
2. Referenced Documents has no other mechanical connection to the test machine. Static
loading may be considered a synonym of dead-weight loading.
2.1 ASTM Standards:
2 3.1.7 elastic loss, n—the permanent loss of specimen’s
D 123 Terminology Relating to Textiles
original dimension after the compression or tension force is
D 5796 Test Method for Thickness of Highloft Nonwoven
3 applied and then subsequently removed.
Fabrics
3.1.8 highloft nonwoven fabric, n—a low-density fiber net-
2.2 ASTM Adjuncts:
work structure characterized by a high ratio of thickness to
D 2904 Practice for Interlaboratory Testing of a Textile Test
2
mass per unit area.
Method that Produces Normally Distributed Data
3.2 For definitions of other textile terms, refer to Terminol-
ogy D 123.
1
This test method is under the jurisdiction ofASTM Committee D13 onTextiles
4. Summary of Test Method
and is the direct responsibility of Subcommittee D13.90 on Executive.
Current edition approved Sept. 10, 2001. Published December 2001. Originally
4.1 Aspecimen (one piece of or a stack of pieces) is placed
published as D 6571–00. Last previous edition D 6571–00.
2 between two plates and the height of the stack measured. A
Annual Book of ASTM Standards, Vol 07.01.
3
Annual Book of ASTM Standards, Vol 07.02. weight of specified mass is placed on the top plate for a
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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D6571–01
specified period of time. The height of the specimen with the 6.3.2 Cover or Top Plate, 230 by 230 by 6.35-mm (9 by 9
1
mass in place is measured at specified time intervals. The mass by ⁄4-in.) plywood plate covered with aluminum foil weighing
is removed and the height of the stack is measured at specified 187 6 2 g (0.41 6 0.005 lb).
time intervals. Compression resistance and recovery properties 6.4 Weight, pieces of metal, liquid-filled containers, or other
are calculated using the height measurements. appropriate substitute of a specific mass to equal 7.26 kg (16
lb) used to compress highloft battings.
5. Significance and Use
7. Sampling and Test Specimens
5.1 The ability of a highloft nonwoven fabric to resist
7.1 Lot Sample—As a lot sample for acceptance testing,
compression and recovery and elastic loss after compression
take at random the number of rolls directed in an application
are two basic physical properties that are measured t
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
e1
Designation:D6571–00 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
e NOTE—Added research report reference to Section 12 editorially in March 2008.
1. 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.
2. Referenced Documents
2.1 ASTM Standards:
2
D 123 Terminology Relating to Textiles
3
D 5796 Test Method for Thickness of Highloft Nonwoven Fabrics
2.2 ASTM Adjuncts:
2
D 2904 Practice for Interlaboratory Testing of a Textile Test Method that Produces Normally Distributed Data
2
D 2906 Practice for Statements on Precision and Bias for Textiles
Adjunct TEX-PAC
3. Terminology
3.1 Definitions:
3.1.1 applied static force, n—in testing, the application of a fixed force by action of gravity on a fixed mass.
3.1.2 batting, n—a textile filling material consisting of a continuous web of fibers formed by carding, garnetting, air laying, or
other means.
3.1.3 compression force, n—the perpendicular force applied to surface (s) of a material in compaction.
3.1.4 compression recovery, n—the property of a material to regain its original dimensions after release from compaction.
3.1.5 compression resistance, n—the property of a material to oppose its change in dimension under compaction.
3.1.6 dead-weight loading, n—in testing, a method of loading in which a mass is supported solely by the specimen and has no
other mechanical connection to the test machine. Static loading may be considered a synonym of dead-weight loading.
3.1.7 elastic loss, n—the permanent loss of dimensions following a release from an applied load either in compression or
extension. —the permanent loss of specimen’s original dimension after the compression or tension force is applied and then
subsequently removed.
3.1.8 highloft nonwoven fabric, n—a low-density fiber network structure characterized by a high ratio of thickness to mass per
unit area.
1
This test method is under the jurisdiction of ASTM Committee D13 on Textiles and is the direct responsibility of Subcommittee D13.64 on Nonwoven Fabrics.
Current edition approved June 10, 2000. Published August 2000.
1
This test method is under the jurisdiction of ASTM Committee D13 on Textiles and is the direct responsibility of Subcommittee D13.90 on Executive.
Current edition approved March 31, 2005. Published December 2001. Originally published as D 6571–00. Last previous edition D 6571–00.
2
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
3.2 For definitions of other textile terms, refer to Terminology D 123.
4. Summary of Test Method
4.1 Aspecimen (one piece of or a stack of pieces) is placed between two plates and the height of the stack measured.Aweight
of specified mass is placed on the top plate for a specified period of time. The height of the specimen with the mass in place is
measured at specified time intervals. The mass is removed and the height of the stack is measured at specified time intervals.
Compression resistance and recovery properties are calculated using the height measurements.
5. Significance and Use
5.1 The
...