ASTM D2091-96(2017) Standard Test Method for Print Resistance of Lacquers.pdf

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1、Designation: D2091 96 (Reapproved 2017)Standard Test Method forPrint Resistance of Lacquers1This standard is issued under the fixed designation D2091; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A num

2、ber 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 resistance of dried lacq

3、uerfilms to imprinting.1.2 The values stated in SI units are to be regarded as thestandard. The values given in parentheses are for informationonly.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 st

4、andard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.1.4 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles f

5、or theDevelopment of International Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2D823 Practices for Producing Films of Uniform Thicknessof Paint, Varnish, and Related Products on Tes

6、t PanelsD1005 Test Method for Measurement of Dry-Film Thick-ness of Organic Coatings Using MicrometersD1186 Test Methods for Nondestructive Measurement ofDry Film Thickness of Nonmagnetic Coatings Applied toa Ferrous Base (Withdrawn 2006)3D1400 Test Method for Nondestructive Measurement of DryFilm T

7、hickness of Nonconductive Coatings Applied to aNonferrous Metal Base (Withdrawn 2006)3D5235 Test Method for Microscopic Measurement of DryFilm Thickness of Coatings on Wood Products2.2 U.S. Federal Specifications:4CCC-C-419(f) Cloth, Duck, Cotton, Unbleached, PliedCCC-C-440(e) Cloth, Cheesecloth, Bl

8、eached and Un-bleached3. Summary of Test Method3.1 A weight presses a piece of fabric against the testsurface. The surface is then examined and changes in appear-ance of the test surface are reported.4. Significance and Use4.1 An unsatisfactory appearance can result from pressuredeformation of a fil

9、m inherently too soft or containing residualsolvent. This test method is primarily used to evaluate theresistance of a lacquer finish to printing under the conditions ofpackaging, shipping, and warehousing.5. Apparatus and Materials5.1 Test PanelsA plane surface consisting of wood, metal,paper suppo

10、rted on plate glass, plastic, or other surface with anarea at least 100 % greater than the base of the weight. Theplaneness, smoothness, and composition should be agreedupon by the purchaser and the seller.5.2 Imprinting Fabric, 8-oz Army duck, Type III, conform-ing to Fed. Spec. CCC-C-419(f) or che

11、esecloth, Type I,conforming to Federal Specification CCC-C-440(e).NOTE 1With the cheesecloth only, use a pad of nonwoven felt clothat least 1.3 mm (0.05 in.) thick, weighing 0.24 kg/m2(7 oz/yd2) and largerthan the plane end of the weight.5.3 Weights, consisting of metal cylinders cut from standardst

12、ock 51 mm (2 in.) in diameter, with plane ends perpendicularto the axis, and of a length to give a pressure of 3.5 or 7.0 kPa(12 or 1 lb/in.2).5.4 Automatic Application Equipment, (Optional), as de-scribed in Practices D823.1This test method is under the jurisdiction of ASTM Committee D01 on Paintan

13、d Related Coatings, Materials, and Applications and is the direct responsibility ofSubcommittee D01.52 on Factory Coated Wood Products.Current edition approved July 1, 2017. Published July 2017. Originally approvedin 1962. Last previous edition approved in 2011 as D2091 96 (2011). DOI:10.1520/D2091-

14、96R17.2For referenced ASTM standards, 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.3The last approved version of this historical standard

15、is referenced onwww.astm.org.4Available from DLA Document Services, Building 4/D, 700 Robbins Ave.,Philadelphia, PA 19111-5094, http:/quicksearch.dla.mil.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was d

16、eveloped in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.15.5 Film Thickn

17、ess Measuring Apparatus, as described inTest Methods D1005, D1186, D1400, and D5235.6. Preparation of Test Specimen6.1 Single CoatsPrepare a specimen for test by applyingthe test lacquer to a panel with a film applicator or otherspecified method, as described in Practices D823, to give aspecified fi

18、lm thickness to be stated in the result. In the absenceof a specified dry film thickness, 25 6 3m(16 0.1 mil) isrecommended.6.2 Multiple CoatsUse the finish system as agreed uponbetween the purchaser and the seller. In the absence of aspecified dry film thickness, 75 6 8m(36 0.3 mils) arerecommended

19、.6.3 ConditioningAllow to dry as agreed upon between thepurchaser and the seller, but run the test within 48 h aftercoating. In the absence of a specified drying schedule, a periodof 24 h at 23 6 2C (73.5 6 3.5F) and a relative humidity of50 6 5 % is recommended.7. Procedure7.1 Place over a uniform

20、area of the specimen either asmooth piece of duck cloth or a piece of cheesecloth with a feltpad cushion. Place one or more weights, each on top of theother, on the duck or cheesecloth and pad and maintain theweight in compliance with one of the following test conditions:7.1.1 At 23 6 2C (73.5 6 3.5

21、F) and 50 6 5 % relativehumidity for an 18-h period,7.1.2 At 50C (120F) for a 4-h period, or7.1.3 At 60C (140F) for a 4-h period.7.2 After the specified time, remove the weight, pad, andfabric. Remove lint and dust from the panel with a clean airstream. Examine the specimen immediately under bright,

22、diffused illumination for impression of the fabric into thelacquered surface and compare to photographic standards (Fig.1).8. Report8.1 Report the following information:8.1.1 Surface involved,8.1.2 Drying schedule,8.1.3 Film thickness,8.1.4 Weight used,8.1.5 Test temperature used, time, and8.1.6 Con

23、ditions of test other than those primarily specifiedin this test method.9. Precision9.1 Results varying by more than 1 of print should besuspect, either with the same or different operators.10. Keywords10.1 lacquer; print resistanceFIG. 1 Print ResistanceD2091 96 (2017)2ASTM International takes no p

24、osition 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 infringement of such rights, are entirely their own responsib

25、ility.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 should be addressed to

26、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 Standards, at the addre

27、ss 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). 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:/ 96 (2017)3