ASTM_D_5999_-_96.pdf

Designation:D 5999 96Standard Test Method forNoninterference of Adhesives in Repulping1This standard is issued under the fixed designation D 5999;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,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 test method covers the repulpability of adhesivesand adhesive coated products under normal repulping condi-tions in a papermaking environment.This test method does notaddress the impact of these adhesives on the process water,orits suitability with different substrates,backings,or facings.(Additional testing may be required to address the effect ofsoluble adhesives depending on the papermaking environ-ment.)1.2 This general method does not measure or predict repul-pability in cases of extremely acidic or alkaline repulpingconditions,but the method can be extended suitably to thoseconditions.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.Referenced Documents2.1 ASTM Standards:D 907 Terminology of Adhesives22.2TAPPI Standard:T 205 Test Method for Forming Handsheets for PhysicalTests of Pulp33.Terminology3.1 Definitions:3.1.1 Several terms in this test method are defined inaccordance with Terminology D 907.4.Significance and Use4.1 This test method evaluates the repulpability of adhesivesin normal papermaking environments and helps the adhesive oradhesive coated product(label,tape,etc.)manufacturer pre-pare materials that incorporate repulpable adhesives.To theend user,this test method provides a useful approach inprescreening the repulpability of the adhesives used on tapes,adhesives used for labels,and the adhesives used in the joining,seaming,and closing of products constructed of paper.5.Apparatus5.1 The following apparatus is required for this test method:5.1.1 Balance,capable of weighing the material accuratelyto the nearest percent.5.1.2 TAPPI/British Disintegrator.35.1.3 Image Analyzer or Formation Tester.5.1.4 TAPPI Handsheet Mold.35.1.5 Hand Sheet Dryer.5.1.6 Flat Screen,with a or 5 to 0.006-in.screen,orequivalent.5.1.7 Centrifuge.5.1.8 Blotter Paper,JR 411-01-11,or equivalent.5.1.9 Drying Oven.5.1.10 Transparent Centrifuge Jars,250-mL capacity.5.1.11 A pH Meter.5.1.12 Sulfuric Acid,0.1%.5.1.13 Sodium Hydroxide,1N,for adjusting pH of pulpingsolutions.5.1.14 Filter Bag,3 m.6.Test Specimens6.1 Test specimens are prepared using 2 L of sample at 3%consistency and containing 1%adhesive or adhesive coatedproduct,contamination based on the dry weight of paper usedunder room conditions.Approximately 60 g of this material isneeded.6.2 The size of the sample sheet is approximately 0.5 by 0.5in.6.3 The preferred paper to be used is JR 411-01-11 blotterpaper.47.Sample Preparation7.1 Apply adhesive to blotter squares uniformly as isrelevant to the application.Measure the weights of the adhe-sive or adhesive coated product used.7.2 Repulp this sample under any one set of the followingconditions in a TAPPI/British Disintegrator:7.2.1 Consistency3%.7.2.2 pH6,7,8.The pH may be adjusted usingH2SO4(0.1%)or NaOH(1N).1This test method is under the jurisdiction of ASTM Committee D-14 onAdhesives and is the direct responsibility of Subcommittee D14.06 on Impact ofAdhesives on Paper Recycling.Current edition approved Aug.10,1996.Published October 1996.2Annual Book of ASTM Standards,Vol 15.06.3Available from the Technical Association of the Pulp and Paper Industry,P.O.Box 105113,Atlanta,GA 30348.4Available from James River Corp.,Neenah Technical Center,1915 MarathonAve.,Neenah,WI 54956,or equivalent may be used.1Copyright ASTM,100 Barr Harbor Drive,West Conshohocken,PA 19428-2959,United States.NOTICE:This standard has either been superceded and replaced by a new version or discontinued.Contact ASTM International(www.astm.org)for the latest information.7.2.3 Temperature,F80,110,140.7.2.4 Time,min5,10,15.7.2.5 Revolutions(rpm)3000.7.3 Deionized/distilled water is used for all evaluations.7.4 The preferred pulping conditions would be 3%consis-tency,pH 7,110F for 5 min.7.5 Fig.1 is a flow chart of the test method described insubsequent sections.8.Dispersibility:Hand Sheet Evaluations8.1 Prepare ten TAPPI handsheets using a TAPPI handsheetmold and the TAPPI standard handsheet procedure.8.2 Measure percent area flocs in the image analyzer to300 3 300 dpi after dyeing the handsheets suitably.8.2.1 If percent area flocs is less than 10 ppm(mm2/m2ofsheet area)then the adhesive material is repulpable.8.3 Measure formation index in the formation tester.8.3.1 If the formation index is greater than 0.70,then thematerial is repulpable.9.Removability:Hand Shee