1、Designation: D2091 96 (Reapproved 2011)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 Department of Defense.1. Scope1.1 This test method covers the resistance of dried lacquerfi
3、lms 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 standar
4、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:2D823 Practices for Producing Films of Uniform Thicknessof Paint, Varnish, and Related Products on Test PanelsD1005 Test Method fo
5、r 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 Base3D1400 Test Method for Nondestructive Measurement ofDry Film Thickness of Nonconductive CoatingsApplied toa
6、 Nonferrous Metal Base3D5235 Test Method for Microscopical Measurement of DryFilm Thickness of Coatings on Wood Products32.2 U.S. Federal Specifications:4CCC-C-419(f) Cloth, Duck, Cotton, Unbleached, PliedCCC-C-440(e) Cloth, Cheesecloth, Bleached and Un-bleached3. Summary of Test Method3.1 A weight
7、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 film inherently too soft or containing residualsolvent. This te
8、st 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 PanelsAplane surface consisting of wood, metal,paper supported on plate glass, plastic, or other surface with anarea at
9、 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 cheesecloth, Type I,conforming to Federal Specification CCC-C-44
10、0(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 standardstock 51 mm (2 in.) in diameter, with plane ends perpendiculart
11、o 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),asde-scribed in Practices D823.5.5 Film Thickness Measuring Apparatus, as described inTest Methods D1005, D1186, D1400, and D5235.6. Preparation of Test Specimen6.1 Singl
12、e 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 a1This test method is under the jurisdiction of ASTM Committee D01 on Paintand Related Coatings, Materials, and Applications and is the d
13、irect responsibility ofSubcommittee D01.52 on Factory Coated Wood Products.Current edition approved Nov. 1, 2011. Published November 2011. Originallyapproved in 1962. Last previous edition approved in 2003 as D2091 96 (2003).DOI: 10.1520/D2091-96R11.2For referenced ASTM standards, visit the ASTM web
14、site, 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.astm.org.4Available from
15、Standardization Documents Order Desk, DODSSP, Bldg. 4,Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http:/dodssp.daps.dla.mil.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.specified film thickness to be stated in the re
16、sult. 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.6.3 ConditioningAllow to dry as ag
17、reed 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 area of the specimen either asmooth
18、 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 3.5F) and 50 6 5 % relativehumidity fo
19、r 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,diffused illumination for impressio
20、n 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 Conditions of test other than those pr
21、imarily 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 (2011)2ASTM International takes no position respecting the validity of
22、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 responsibility.This standard is subject to r
23、evision 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 ASTM International Headquarters. Yo
24、ur 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 address shown below.This standard is cop
25、yrighted 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 ASTM website (www.astm.org/COPYRIGHT/).D2091 96 (2011)3
