1、Designation: D5053 03 (Reapproved 2015)Standard Test Method forColorfastness of Crocking of Leather1This standard is issued under the fixed designation D5053; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revisio
2、n. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S. Department of Defense.1. Scope1.1 This test method covers the determination of
3、 the degreeof color that may be transferred from leather to other surfacesby rubbing under wet (damp) or dry conditions, or both. Thistest method does not apply to wet blue.1.2 The values stated in inch-pound units are to be regardedas the standard. The values given in parentheses are forinformation
4、 only.1.3 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 standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Refere
5、nced Documents2.1 ASTM Standards:2D1517 Terminology Relating to LeatherD1610 Practice for Conditioning Leather and Leather Prod-ucts for TestingD2813 Practice for Sampling Leather for Physical andChemical Tests2.2 AATCC Methods:AATCC Method 8 Colorfastness to Crocking:AATCC Crockmeter Method3AATCC C
6、hromatic Transference Scale or Gray Scale forStaining33. Terminology3.1 DefinitionsFor definitions of colorfastness andcrocking, refer to AATCC Method 8. For other specific leatherterminology, see Terminology D1517.4. Summary of Test Method4.1 A specimen of the leather sample fastened to the base of
7、a crockmeter is rubbed with white crock test cloth undercontrolled conditions. Color transferred to the white cloth isassessed by a comparison with the AATCC chromatic trans-ference scale; an alternative is to use the gray scale for stainingas suggested in AATCC Method 8.5. Significance and Use5.1 T
8、his test method is intended for use on any type ofleather.6. Apparatus6.1 Apparatus, as specified in AATCC Test Method 8.4,56.2 Test Cloth, white crock.5,66.3 Test Cloth, black crock.5,77. Sampling, Test Specimens, and Test Units7.1 The minimum size of the test specimen shall be 2 by 5in. (5.1 by 12
9、.7 cm). However, where nondestructive testing ofskins is desired, the entire skin may be used and tested in anyportion of its area. (See Practice D2813 for proper samplingarea.)7.2 All specimens shall be conditioned as prescribed inPractice D1610. Conditioning other than as prescribed shall benoted
10、in the results.8. Procedure8.1 Dry TestMount the test specimen flat on the base ofthe testing machine with its long dimensions in the direction of1This test method is under the jurisdiction of ASTM Committee D31 on Leatherand is the direct responsibility of Subcommittee D31.04 on ApparelCurrent edit
11、ion approved Sept. 1, 2015. Published October 2015. Originallyapproved in 1995. Last previous edition approved in 2009 as D5053 03(2009).DOI: 10.1520/D5053-03R15.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book
12、of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Technical Manual of theAmericanAssociation of Textile Chemist and Colorist,P.O. Box 12215, Research Triangle Park, NC 27709-2215.4The sole source of supply of the AATCC crockmeter known to the commi
13、tteeat this time is Atlas Electric Devices Company, 4114 North Ravenswood Avenue,Chicago, IL 60613. Telephone: (312) 3274520.5If you are aware of alternative suppliers, please provide this information toASTM Headquarters.Your comments will receive careful consideration at a meetingof the responsible
14、 technical committee,1which you may attend.6The sole source of supply of test cloth known to the committee at this time isTestfabrics Inc., 200 Blackford Ave., Middlesex, NJ 08846. Telephone: (908)4696446. Fax: (908) 4691147.7The source of this test cloth is Textile Innovators Corp., 101 Forest St.,
15、Windsor, NC 27983, Tel No. 2527949703, Fax No. 2527949704. Order as TIC400 Cotton print cloth, Direct Black 22.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1the motion of the finger. Use white cloth for testing coloredleathers, and
16、use black cloth for white or light-colored leathers.Condition the piece of cloth, 2 in.2, for at least2hinthestandard atmosphere. Then place on the end of the finger withthe weave of the cloth oblique to the direction of rubbing. Placethe finger with the cloth cover on the specimen and operate thema
17、chine for ten complete turns of the crank at a rate of one turnper second. When a comparison is required, test a standardspecimen in the same manner.8.2 Wet TestPlace a new area of the test specimen and anew piece of cloth on the testing machine as described in 8.1.Before placing the cloth on the fi
18、nger, wet it with distilledwater. Then wring or extract until its moisture content isbetween 75 and 100 % of the weight of the cloth beforewetting. Carry out the rubbing test as described in 8.1. At theend of the test, remove the cloth and dry in air. When acomparison is required, test a standard sp
19、ecimen in the samemanner.9. Interpretation of Results9.1 If no comparison is specified, classify the colorfastnessof the specimen as follows:9.1.1 GoodNo appreciable staining of either the wet ordry cloth.9.1.2 FairAppreciable staining of wet cloth but no appre-ciable staining of dry cloth.9.1.3 Poo
20、rAppreciable staining of dry cloth.9.2 If a comparison standard is used, compare the cloth usedon the test specimen with the cloth used on the standardspecimen.9.3 If theAATCC scale is used for comparison, compare thecloths used on the test specimens with the scale.10. Report10.1 State that the spec
21、imens were tested as directed inASTM Test Method (D5053).10.2 Report the following information:10.2.1 Whether wet or dry crocking test was utilized, and10.2.2 Degree of staining for each specimen as the appro-priate grade on the AATCC chromatic transference scale.10.2.3 Indicate whether the AATCC ch
22、romatic transferencescale or gray scale for staining was used.11. Precision and Bias11.1 This test method is adopted from the procedures of theAmerican Leather Chemists Association8where it has longbeen in use and where it was approved for publication beforethe inclusion of precision and bias statem
23、ents were mandated.The original interlaboratory test data is no longer available.The user is cautioned to verify by the use of referencematerials, if available, that the precision and bias of this testmethod is adequate for the contemplated use.12. Keywords12.1 colorfastness; crocking; leatherASTM I
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25、ely 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 of this standard or for additional standardsand
26、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 shouldmake your views known to the ASTM Committee on
27、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
28、610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ Leather Chemists Association, Office of Secretary-Treasurer, Cam-pus Station, Cincinnati, OH 45221.D5053 03 (2015)2
