1、Designation: D 7021 05Standard Performance Specification forBathrobe, Dressing Gown, Negligee, Nightgown, andPajama Fabrics1This standard is issued under the fixed designation D 7021; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision,
2、 the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This performance specification covers fabrics used inbathrobes, dressing gowns, negligee, nightgown, and
3、 pajamas.1.2 These requirements apply to the length and widthdirections for those properties where each fabric direction ispertinent.1.3 The following safety hazards caveat pertains only to thetest methods described in this performance specification: Thisstandard does not purport to address all of t
4、he safety concerns,if any, associated with its use. It is the responsibility of the userof this standard to establish appropriate safety and healthpractices, and determine the applicability of regulatory limi-tations prior to use.2. Referenced Documents (See Note 1)2.1 ASTM Standards:2D 123 Terminol
5、ogy Relating to TextilesD 434 Test Method for Resistance of Slippage of Yarns inWoven Fabrics Using a Standard SeamD 1336 Test Method for Distortion of Yarn in WovenFabricsD 1424 Test Method for Tearing Strength of Fabrics byFalling Pendulum Type (Elmendorf) apparatusD 2261 Test Method for Tearing S
6、trength of Woven Fabricsby the Tongue (Single Rip) Method (Constant-Rate-of-Extension Tensile Testing Machine)D 3786 Test Method for Hydraulic Bursting Strength ofTextilesDiaphragm Bursting Strength Tester MethodD 3787 Test Method for Bursting Strength of Textiles Constant-Rate-of-Traverse (CRT) Bal
7、l Burst TestD 5034 Test Method for Breaking Strength and Elongationof Textile Fabrics (Grab Test)D 7022 Terminology Relating to Apparel2.2 AATCC Test Methods:38 Colorfastness to Crocking: AATCC Crockmeter Method15 Colorfastness to Perspiration16 Colorfastness to Light23 Colorfastness to Burnt Gas Fu
8、mes61 Colorfastness to Laundering, Home and Commercial:Accelerated116 Colorfastness to Crocking: Rotary Vertical CrockmeterMethod124 Smoothness Appearance of Fabrics after RepeatedHome Launderings132 Colorfastness to Drycleaning135 Dimensional Changes of Fabrics after Home Launder-ing158 Dimensional
9、 Changes on Drycleaning in Perchloroeth-ylene: Machine Method172 Colorfastness to Non-Chlorine Bleach in Home Laun-dering188 Colorfastness to Sodium Hypochlorite Bleach in HomeLaundering2.3 Federal Standards:416 CFR 1610 Standard for Flammability of Clothing Tex-tiles16 CFR 1615 Standard for the Fla
10、mmability of ChildrensSleepwear: Sizes 0 Through 6X16 CFR 1616 Standard for the Flammability of ChildrensSleepwear: Sizes 7 through 14NOTE 1Reference to test methods in this specification give only thepermanent part of the designation of ASTM, AATCC, or other testmethods. The current editions of eac
11、h test method cited shall prevail.3. Terminology3.1 For definitions of textile terms used in this specificationrefer to Terminologies D 123 and D 7022. For terms relating tochemical and colorfastness testing refer to specificAATCC testmethods1This specification is under the jurisdiction of ASTM Comm
12、ittee D13 onTextiles and is the direct responsibility of Subcommittee D13.61 on Apparel.Current edition approved July 1, 2005. Published August 2005.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStanda
13、rds volume information, refer to the standards Document Summary page onthe ASTM website.3Available from American Association of Textile Chemists and Colorists, P.O.Box 12215, Research Triangle Park, NC 27709.4Available from Superintendent of Documents, Government Printing Office,Washington, DC 20402
14、.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.3.2 Definitions found in a dictionary of common usage aresuitable for this specification.4. Significance and Use4.1 Fabrics intended for this end-use should meet all of therequirements
15、 listed in Table 1.4.2 It should be recognized that fabric can be producedutilizing an almost infinite number of combination of construc-tion variables (e.g., type of fibers, percentage of fibers, yarntwist, yarn number, warp and pick count, chemical andmechanical finishes). Additionally, fashion or
16、 aesthetics dictatethat the ultimate consumer may find acceptable articles madefrom fabrics that do not conform to all of the requirements inTable 1.4.2.1 Hence, no single performance specification can possi-bly apply to all the various fabrics that could be utilized for thisend-use.4.3 The uses and
17、 significance of particular properties andtest methods are discussed in the appropriate sections of thespecified test methods.5. Test Methods (See Note 1)5.1 Breaking Strength (woven fabrics only)Determine thebreaking force (load), as directed in the grab test procedure ofTest Method D 5034 using a
18、constant-rate-of-extension (CRE)tensile testing machine.NOTE 2If preferred a constant-rate-of-traverse (CRT) tensile testingmachine may be used. There may be no overall correlation between theresults obtained with the CRT machine and the CRE machine. Conse-quently, these two breaking force testers c
19、an not be used interchangeably.In case of controversy, the CRE method, Test Method D 5034, shallprevail.5.2 Tearing Strength (woven fabrics only)Determine thetearing resistance as directed in Test Method D 1424.NOTE 3If preferred, use of Test Method D 2261 is permitted withexisting requirements as g
20、iven in this standard. There may be no overallcorrelation between the results obtained with the Elmendorf machine (TestMethod D 1424) and with the tongue tear method (Test Method D 2261).Consequently, these testers cannot be used interchangeably. In case ofcontroversy, Test Method D 1424 shall preva
21、il.TABLE 1 Specification RequirementsCharacteristic Minimum Requirements SectionSheer Fabrics Non-Sheer FabricsBreaking strength (CRE)A67 N (15 lbf) 8.9 N (20 lbf) 5.1Tearing strength (CRE)A4.4N(1lbf) 6.7N(1.5lbf) 5.2Yarn distortion:Satins 2.5 mm (0.1 in.), max at 4.4 N (1 lbf) loadAll other 1 mm (0
22、.05 in.), max at 4.4 N (1 lbf) loadResistance to Yarn slippageA5.4(6 mm (14 in.) separation) 44 N (10 lbf) 67 N (15 lbf)Bursting strength, KnitA133 N (30 lbf) 222 N (50 lbf) 5.5Dimensional Change - WovenLaundering 3 %, max 5.6.1Drycleaning 2 %, max 5.6.2Dimensional Change KnitLaundering 5 % max 5.6.
23、1Drycleaning 5 % max 5.6.2Colorfastness:Laundering: 5.7.1Shade change Grade 4Staining Grade 3Drycleaning: 5.7.2Shade change Grade 4Sodium Hypochlorite Bleach 5.7.3Shade Change Grade 4Non-Chlorine Bleach 5.7.3Shade Change Grade 4Burnt gas fumes2 cycles: 5.7.4Shade change, original fabric Grade 4Shade
24、 change, after one launderingor one drycleaningGrade 4Crocking: 5.7.5Dry Grade 4Wet Grade 3Perspiration: 5.7.6Shade change Grade 4Staining Grade 3Light (10 AFU) (xenon-arc) Grade 4 5.7.7Fabric appearance SA 3.5 5.8Flammability 5.916 CFR 1610 Class I16 CFR 1615, 1616 PassAThere is more than one metho
25、d that can be used to measure breaking strength, tearing strength, bursting strength, and lightfastness. These methods cannot be usedinterchangeably since there may be no overall correlation between them (see Note 2, Note 3, Note 4, and Note 5).D70210525.3 Yarn Distortion (woven fabric only)Determin
26、e theyarn distortion as directed in Test Method D 1336.5.4 Resistance to Yarn Slippage (woven fabrics only)Determine the resistance to yarn slippage as directed in TestMethod D 434.5.5 Bursting Strength (knit fabrics only)Determine thebursting strength of knit fabrics as directed in Test MethodD 378
27、6.NOTE 4If preferred, a consant-rate-of-extension (CRE) tensile testingmachine may be used. Since there is no overall correlation between theresults obtained with the CRE machine equipped with a bursting attach-ment (Test Method D 3787) and the diaphragm bursting tester (TestMethod D 3786), these tw
28、o bursting testers cannot be used interchange-ably. In case of controversy, the diaphragm bursting tester method (TestMethod D 3786) shall prevail.5.6 Dimensional Change:5.6.1 LaunderingDetermine the dimensional change afterlaunderings as directed in the applicable procedure in AATCCMethod 135.5.6.2
29、 DrycleaningDetermine the dimensional change af-ter dry cleanings as directed in AATCC Test Method 158.NOTE 5Launderable fabrics are expected normally to be drycleaned,except where all or part of the fabric will not withstand drycleaning. Forexample, the fabric could contain a functional finish solu
30、ble in the solvent,or the fiber could be degraded by the solvent, which would be the casewith poly (vinyl chloride) fiber. If a fabric would be harmed by ALLmethods of care except for drycleaning, it should be considered Drycleanonly.5.7 Colorfastness:5.7.1 LaunderingDetermine the colorfastness to l
31、aunder-ing as directed in the applicable procedure of AATCC Method61.5.7.2 DrycleaningDetermine colorfastness to drycleaningas directed in AATCC Method 132.5.7.3 BleachingWhen testing with bleach is indicated,test as directed in AATCC Test Method 172 for sodiumhypochlorite bleach or AATCC Test Metho
32、d 188 for non-chlorine bleach, as appropriate.5.7.4 Burnt Gas FumesDetermine the colorfastness toburnt gas fumes on the original fabric and after one launderingor one dry cleaning as directed inAATCC Method 23. Washingor drycleaning conditions shall be as for dimensional changetesting.5.7.5 Crocking
33、Determine colorfastness to dry and wetcrocking as directed in AATCC Method 8 for solid shades andAATCC Method 116 for prints.5.7.6 PerspirationDetermine colorfastness to perspirationas directed in AATCC Method 15.5.7.7 LightDetermine colorfastness to light as directed inAATCC Method 16.NOTE 6There a
34、re distinct differences in spectral distribution betweenthe various types of machines listed inAATCC Method 16, with no overallcorrelations between them. Consequently, these machines can not be usedinterchangeably. In case of controversy, results obtained with the water-cooled xenon-arc machine list
35、ed in Option E shall prevail.5.8 Fabric AppearanceDetermine the fabric smoothnessappearance (SA) as directed in AATCC Method 124 after theapplicable laundering or drycleaning procedure.5.8.1 For fabrics not intended for use in durable pressgarments, determine the smoothness appearance after pressing
36、as specified in AATCC Test Method 135.5.9 FlammabilityThe flammability test and requirementsshall meet or exceed the applicable Flammable Fabrics Actmandatory standards as specified in 16 CFR 1610 (for adultnightwear), or 16 CFR 1615 or 16 CFR 1616 (for childrensnightwear).6. Keywords6.1 bathrobe; d
37、ressing gown; negligee; nightgown; pajamaASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and th
38、e riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision o
39、f this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you should
40、make your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).D7021053
