ASTM D3107-2007e1 Standard Test Methods for Stretch Properties of Fabrics Woven from Stretch Yarns《弹力纱机织物拉伸性能的标准试验方法》.pdf
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1、Designation: D3107 071Standard Test Methods forStretch Properties of Fabrics Woven from Stretch Yarns1This standard is issued under the fixed designation D3107; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revis
2、ion. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1NOTEIn Eq 5, “Fabric Growth” was corrected to “Fabric Recovery” editorially in April 2011.1. Scope1.1 These test methods cover the determin
3、ation of theamount of fabric stretch, fabric growth, and fabric recovery offabrics woven in whole or in part from stretch yarns after aspecified tension and extension.1.2 These test methods are intended for use with wovenfabrics exhibiting high stretch (greater than 12 percent) andgood recovery prop
4、erties from low tension (up to 360 g/cm or2 lb/in. of fabric width). When agreed upon, these test methodscan be used for fabrics woven in whole or in part fromnon-stretch yarns that exhibit limits within the stretch charac-teristics shown above.1.3 These test methods allow the use of two tension opt
5、ionscommonly used in the textile industry; 1.35 kg (3 lb.) and 1.8kg (4 lb). Several calculations are included for fabric stretch,fabric growth and fabric recovery, and can be used individuallywhen required by individual specifications.1.4 These test methods should not be used to measurebreaking elo
6、ngation of woven fabrics which is covered in TestMethod D5035.1.5 The values stated in either SI units or inch-pound unitsare to be regarded separately as the standard. Within the text,the inch-pound units are shown in parentheses. The valuesstated in each system are not exact equivalents; therefore
7、, eachsystem shall be used independently of the other. Combiningvalues from the two systems may result in nonconformancewith the specification.1.6 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standar
8、d to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D123 Terminology Relating to TextilesD1776 Practice for Conditioning and Testing TextilesD2904 Practice for Interlaboratory Testi
9、ng of a Textile TestMethod that Produces Normally Distributed DataD2906 Practice for Statements on Precision and Bias forTextiles3D4848 Terminology Related to Force, Deformation andRelated Properties of TextilesD4849 Terminology Related to Yarns and FibersD4850 Terminology Relating to Fabrics and Fa
10、bric TestMethodsD5035 Test Method for Breaking Force and Elongation ofTextile Fabrics (Strip Method)3. Terminology3.1 For all terminology related to Fabric, refer to Terminol-ogy D4850.3.2 For all terminology related to Yarns and Fiber, refer toTerminology D4849.3.3 For all terminology related to Fo
11、rce, Deformation andRelated Properties of Textiles, refer to Terminology D48483.3.1 The following terms are relevant to this standard:bench marks, fabric stretch, fabric growth, stretch yarn, tension3.4 For all other terminology related to textiles, refer toTerminology D123.4. Summary of Test Method
12、s4.1 Fabric Stretch under a Specified TensionBench marksof a known distance are made on a fabric specimen.Aspecifiedtension is applied to a fabric specimen by a prescribed1These test methods are under the jurisdiction of ASTM Committee D13 onTextiles and is the direct responsibility of Subcommittee
13、D13.59 on Fabric TestMethods, General. Current edition approved July 1, 2007. Published August 2007.Originally approved in 1975 as D310775. Discontinued September 1999 andreinstated in 2003 as D310703. Last previous edition approved in 2003 asD310703. DOI: 10.1520/D3107-07.2For referenced ASTM stand
14、ards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Withdrawn. The last approved version of this historical standard is referencedon www.a
15、stm.org.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.technique and the resulting distance between bench markswhile the specimen is under the tension is measured. The fabricstretch is calculated from the length difference between b
16、enchmarks prior to application of the tension and while under thetension.4.2 Fabric Growth after a Specified TensionBench marksof a known distance are made on a fabric specimen.Aspecifiedtension is applied to a fabric specimen by a prescribedtechnique. The tension is removed and after various timein
17、tervals, the relaxed distance between the bench marks isremeasured. The fabric growth is calculated from the lengthdifference between the bench marks prior to application of thetension and after relaxation.4.3 Fabric Growth after Stretching to a SpecifiedExtensionBench marks of a known distance are
18、made on afabric specimen. A specimen, paired to one used in the fabricstretch test, is held at a specified extension for a prescribedperiod of time. The tension is then removed from the specimenand the distance between the bench marks is measured after thespecimen has been allowed to relax for vario
19、us time intervals.The fabric growth at each time interval is calculated from thedistance between the bench marks of the specimen prior tostretching and the length after each relaxation period at zerotension.4.4 Fabric Recoveryfabric recovery is calculated as thepercentage of the fabric growth recove
20、red with respect to thefabric growth determined after tension and/or after a specifiedextension obtained at the various relaxation intervals.5. Significance and Use5.1 these test methods are used to determine the stretch,growth and recovery properties that garments made with thefabric tested may be
21、expected to exhibit during use.5.2 these test methods is not recommended for acceptancetesting of commercial shipments because the between-laboratory precision is known to be poor.5.2.1 If there are differences of practical significance be-tween reported test results for two or more laboratories,com
22、parative tests should be performed by those laboratories todetermine if there is a statistical bias between them, usingcompetent statistical assistance. Use test samples that are ashomogeneous as possible, are drawn from the material fromwhich the disparate test results were obtained, and are ran-do
23、mly assigned in equal numbers to each laboratory for testing.The test results from the two laboratories should be comparedusing a statistical test for unpaired data, at a probability levelchosen prior to the testing series. If a bias is found, either itscause must be found and corrected, or future t
24、est results for thatmaterial must be adjusted in consideration of the known bias.5.3 Some stretch fabrics are constructed with stretch yarnsin only the filling direction. Consequently, for those fabrics,only the filling direction needs to be tested.6. Apparatus6.1 Stretch Testing Instrument4consisti
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