1、Designation:D555210(Reapproved 2015)Standard Test Method forResistance of Colored Leather to Bleeding1This standard is issued under the fixed designation D5552;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision
2、.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This test method covers the determination of the resis-tance of colored leather to bleeding.This test method does notapply to wet blue.1
3、.2 This test method is intended for use on finished upperleather for shoes or similar end use,or the leather article suchas shoe,handbag,etc.1.3 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversions to SI units that are provid
4、ed for information onlyand are not considered standard.1.4 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
5、 regulatory limitations prior to use.2.Referenced Documents2.1 ALCA Method:K 12 Method for Testing Resistance of Colored Leather toBleeding23.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 bleedingthe transfer of color from a finished leathersample onto or into another medium.4.
6、Significance and Use4.1 Bleed resistance is considered to be an important char-acteristic in leather used to make lined and unlined items thatmay come in contact with water.5.Apparatus5.1 Air-Tight Oven.5.2 Bleached Cotton Sheeting,32 in.squares(51.6 by 51.6mm).5.3 Glass Plates,two 6 in.squares(152.
7、4 by 152.4 mm)and0.125 in.(3.18 mm)thick.6.Test Specimen6.1 The test specimen shall be a 4 in.square(101.6 by 101.6mm)of finished leather.7.Procedure7.1 Place the unfinished side of the leather specimen on thecenter of one of the glass plates.Thoroughly soak the foursquares of cotton sheeting in dis
8、tilled water for 5 min.Stackthem on top of each other on the other glass plate.Invert thisplate with the cotton cloths,and place on top of the other plateholding the leather specimen.The cloths should line upapproximately in the center of the leather specimen.7.2 The cloth in immediate contact with
9、the leather ismarked Number 1,the next cloth Number 2,the next Number3 and the top cloth Number 4.Place this entire sandwich in anoven at 120F(49C)for 12 to 16 h.Remove the glass platesand observe the individual cloths for discoloration.8.Report8.1 Migration of BleedingObserve each of the four cloth
10、sfor coloration and report migration as 0,1,2,3,or 4.Thenumbers indicate the cotton cloth that discoloration hasreached by migration.8.2 HueNote the predominant hue of the colors that bledon each cloth.8.3 IntensityObserve each cloth Number 1 for this pur-pose.The degrees of intensity shall be terme
11、d none,slight,moderate,or considerable as determined by comparing the test1This test method is under the jurisdiction of ASTM Committee D31 on Leatherand is the direct responsibility of Subcommittee D31.04 on Apparel.Current edition approved Sept.1,2015.Published October 2015.Originallyapproved in 1
12、994.Last previous edition approved in 2010 as D555210.DOI:10.1520/D5552-10R15.2Developed by and available from the American Leather Chemists Association(ALCA),University of CincinnatiM.L.14,Cincinnati,OH 45221-0014.3The sole source of supply of the sheeting known to the committee at this timeis Test
13、fabrics Inc.,200 Blackford Avenue,P.O.Box 420,Middlesex,NJ 08846-0420.If you are aware of alternative suppliers,please provide this information toASTM Headquarters.Your comments will receive careful consideration at a meetingof the responsible technical committee,1which you may attend.Copyright ASTM
14、 International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 cloth discoloration to the AATCC Grey Scale for EvaluatingStaining.4Intensity shall be reported usingAATCC Grey Scalenumbering.8.4 Report the exact number of hours of contact of leather tocloth.9.Precisio
15、n and Bias9.1 This test method is adopted from Method K 12 of theAmerican Leather ChemistsAssociation where it has long beenin use and was approved for publication before the inclusion ofprecision and bias statements was mandated.The originalinterlaboratory test data are no longer available.The user
16、 iscautioned to verify by the use of reference materials,ifavailable,that the precision and bias(or reproducibility)of thistest method is adequate for the contemplated use.10.Keywords10.1 bleed resistance;bleeding;migrationASTM 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 the riskof infringemen
