ASTM_F_1782_-_97_2002.pdf

Designation:F 1782 97(Reapproved 2002)Standard Practice forAmount of Ink Deposit on Fabric Type Ribbons1This standard is issued under the fixed designation F 1782;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 practice covers the determination of the amount ofink deposit,sometimes known as ink content,on inked fabricribbons.1.2 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.See 6.1 and 9.4 forspecific precautionary statements.2.Referenced Documents2.1 ASTM Standards:D 685 Practice for Conditioning Paper and Paper Productsfor Testing2F 221 Terminology Relating to Carbon Paper and InkedRibbon Products and Images Made Therefrom23.Terminology3.1 For definitions of terms used in this test method,refer toTerminology F 221.4.Summary of Practice4.1 The amount of ink deposit is gravimetrically determinedby analytically weighing a conditioned test specimen.The inkdeposit is removed by the use of a suitable solvent(s)in anultrasonic cleaner.The de-inked fabric sample is conditionedand reweighed.The amount of ink deposit is calculated.5.Apparatus5.1 Analytical Balance,with a sensitivity to 0.1 mg.5.2 Ultrasonic Bath,with or without heater.6.Reagents6.1 Care should be taken to select the extraction solvent(s)so that only the ink is removed from substrates.WarningVapors from solvents can be toxic when inhaled over pro-longed periods.Some solvents commonly used may be listedas carcinogenic.Others are flammable and suitable precautionsshould be taken.Handle with care and use only in properlyventilated areas to avoid breathing vapors.A fume hood isrecommended.7.Conditioning7.1 Allow the test specimen to stabilize under room condi-tions for 15 min for routine testing.7.2 Allow the test specimen to condition 1 h at 23.06 2.0Cand 50 6 2%relative humidity for a more precise determina-tion(see Practice D 685).8.Test Specimen8.1 Cut a representative test sample of the desired size fromthe conditioned specimen.9.Procedure9.1 From a sample that has been conditioned in accordancewith 7.1 or 7.2,discard at least two outer wraps of ribbonmaterial if from a reel of inked fabric prior to sampling.If thesample to be checked is from a ribbon cartridge,pull out someof the ribbon in order to check the ink inside the cartridge.9.2 For a narrow fabric ribbon sample,typically 1 in.or lessin width,cut a 10 to 15 in.long section for ink percentagecalculation.For wide fabric ribbons,typically 14 in.or greaterin width,cut a 2 by 3 in.portion from the right and left sidesfor ink percentage calculation.This helps to determine if thefabric is inked evenly across the width of the fabric.For gramsper square metre calculation,a popular scaling factor for thesample is1200of a square metre for ribbons12in.(12.7 mm)or less and1100of a square metre for ribbons above12in.(12.7mm).Care should be taken to avoid contact of sample with inkabsorbing surfaces.(Example:Cardboard,paper towel,etc.)Sheet mylar or similar surfaces are acceptable.9.3 Weigh the sample in accordance with acceptable ana-lytical procedure.Weigh to the nearest 0.1 mg.Record as inkedweight(A).9.4 Set up the ultrasonic bath by first filling the tank with atransfer medium(for example,warm tap water plus a wettingagent/detergent).Place two glass beakers(400 or 600 mL)ofthe desired solvent(s)in a beaker positioning cover to suspendthe beakers in the bath.Plug in the ultrasonic bath and turnpower on.If using a bath with a heater,turn the heat switch toon and allow the bath to stabilize to the desired temperature.WarningThe temperature of the bath should not exceed theboiling point of the solvent.1This practice is under the jurisdiction of ASTM Committee F05 on BusinessImaging Products and is the direct responsibility of Subcommittee F05.02 on InkedTransfer Imaging Products.Current edition approved March 10,1997.Published June 1997.2Annual Book of ASTM Standards,Vol 15.09.1Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959,United States.9.5 Using tongs,remove the sample from the balance.Immerse the sample into the first beaker containing the solventfor 1 min,longer if desired.9.6 Using tongs,remove the sample from the first beakerand transfer it to the second beaker containing the solvent for1 min,longer if desired.9.7 Remove the sample from the bath and waft it in the airto remove excess solvent.(To further remove solvent,awarmed oven may be needed to remove residual solvent.)Place on a clean surface and allow to dry and humidity stabilizefor 10 min.9.8 Reweigh on an an