1、Designation: D5570/D5570M 10Standard Test Method forWater Resistance of Tape and Adhesives Used as BoxClosure1This standard is issued under the fixed designation D5570/D5570M; the number immediately following the designation indicates theyear of original adoption or, in the case of revision, the yea
2、r of last revision. A number in parentheses indicates the year of lastreapproval. A superscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This test method covers a procedure to determine thewater resistance of an adhesive or tape as measured by theamo
3、unt of tape or adhesive dissolved or dispersed in water.1.2 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard. The values stated ineach system may not be exact equivalents; therefore, eachsystem shall be used independently of the other. Combiningvalues
4、 from the two systems may result in non-conformancewith the standard.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
5、applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D644 Test Method for Moisture Content of Paper andPaperboard by Oven DryingD996 Terminology of Packaging and Distribution Environ-mentsD1974 Practice for Methods of Closing, Sealing, and Rein-forcing Fib
6、erboard Boxes3. Terminology3.1 Definitions:3.1.1 General definitions for packaging and distributionenvironments are found in Terminology D996.3.2 Description of Term Specific to This Standard:3.2.1 box closurethe means of securing the flaps or coversof a box so that the box will not accidentally ope
7、n duringnormal shipment, handling, and storage.4. Summary of Test Method4.1 Procedure AThe water resistance of a tape (gummedor pressure sensitive) is measured by immersing the tape inwater at least 24 h at 73.4 6 4F 23 6 2C and determiningthe percent of tape that is dissolved or dispersed.4.2 Proce
8、dure BThe water resistance of an adhesive ismeasured by coating the adhesive on a paper surface, immers-ing in water at least 24 h at 73.4 6 4F 23 6 2C, anddetermining the percent of adhesive that is dissolved ordispersed.5. Significance and Use5.1 When a box becomes wet, the performance of the boxa
9、nd its closure are reduced. It is desirable to have box closuremethods that retain an ability to keep the box closed when wet.Sealing or reinforcing methods sometimes are useful to im-prove performance of wet boxes and closures. Water resistanceis sometimes a regulatory or contractual requirement.5.
10、2 A test result indicating that a box closure tape oradhesive is soluble or dispersible in water is an indication thatits function will be significantly impaired when wet. A testresult that does not indicate solubility or dispersibility does notnecessarily ensure that the bonding ability will be sat
11、isfactorywhen wet or that the performance of the box closure will besatisfactory when wet. Package performance testing describedin the water resistance section of Practice D1974 is useful tofurther investigate the effects of water on package and closurefunctions.6. Apparatus and Materials6.1 Drying
12、Oven, capable of maintaining 221 6 9F 105 65C and providing adequate air circulation.6.2 Testing Chamber, capable of keeping samples at 73.4 64F 23 6 2C.6.3 Balance, capable of reading the mass of specimens atleast to the nearest 0.00035 oz. 1 mg.1This test method is under the jurisdiction of ASTM C
13、ommittee D10 onPackaging and is the direct responsibility of Subcommittee D10.27 on Paper andPaperboard Products.Current edition approved April 1, 2010. Published May 2010. Originallyapproved in 1994. Last previous edition approved in 2005 as D5570 94 (2005).DOI: 10.1520/D5570_D5570M-10.2For referen
14、ced 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.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West C
15、onshohocken, PA 19428-2959, United States.6.4 Container, capable of holding at least 1 qt 1 L ofwater.6.5 Stainless Steel Screen, or other means of holding testspecimens under water and allowing for water to circulate totest specimens.6.6 Water, tap water is usually acceptable. Distilled ordeionized
16、 water shall be used for referee purposes.6.7 Dispensing System, as required, when adhesives are tobe tested.6.8 Specimen Marking Device, such as a pencil or a penwith water resistant ink.6.9 Paper or Paperboard, when adhesives are to be tested,which has the ability to remain intact for at least 24
17、h of waterimmersion. The approximate size shall be 10 3 10 in.250 3 250 mm.7. Test Specimens7.1 Samples of tape and adhesives shall be representative ofthe items under investigation.NOTE 1Water resistance is a property that is relatively constant for agiven formulation of tape and adhesive. This typ
18、e of testing is usuallyconducted only for design qualification or first article of manufacture, noton a periodic or lot-by-lot basis.8. Procedures8.1 Procedure ATape:8.1.1 Obtain three samples of tape, each with an approxi-mate area of 12 in.27500 mm2. Dry each specimen in anoven at 221 6 9F 105 6 5
19、C for 2 h. Weigh each specimento the nearest 0.00035 oz. 1 mg immediately after removalfrom the oven; weighing procedures in Practice D644 arerecommended for referee purposes. Place specimens in acontainer with at least 1 qt 1 L of water at 73.4 6 4F 23 62C. Hold specimens under water by a stainless
20、 steel screen orby other means that allow circulation of water to all surfaces ofthe specimens but will not disrupt the adhesive surface. Keepspecimens under water at 73.4 6 4F 23 6 2C for 25 6 1h. Remove from water and repeat the drying and weighingoperations.8.1.2 Calculate the percentage water so
21、luble or dispersiblecomponents as follows:% loss 5 MI2 MF!/MI# 3 100 (1)where:MI= mass of oven-dried tape before water submersion,andMF= mass of oven-dried tape after water submersion.8.1.3 The test result shall be calculated as the arithmeticmean of the three specimens.8.1.4 InterpretationA maximum
22、 acceptable percentageloss may be specified in a contract or specification. It isgenerally accepted that a result of up to 2 % loss of mass couldbe attributed to incidental materials in the tape and experimen-tal variation. A result of over 2 % loss indicates that functionalcomponents of the tape ar
23、e removed by water.8.2 Procedure BAdhesives:8.2.1 Mark six paper samples for identification purposes.Pick three of the six samples. Dry each specimen in an oven at221 6 9F 105 6 5C for 2 h. Weigh each specimen to thenearest 0.00035 oz. 1 mg immediately after removal from theoven; weighing procedures
24、 in Practice D644 are recommendedfor referee purposes. Place specimens in a container with atleast 1 qt 1 L of water at 73.4 6 4F 23 6 2C. Holdspecimens under water by a stainless steel screen or by othermeans that allow circulation of water to all surfaces of thespecimens but will not disrupt the s
25、urface. Keep specimensunder water at 73.4 6 4F 23 6 2C for 25 6 1 h. Removefrom water and repeat the drying and weighing operations.8.2.2 Calculate the percentage water soluble or dispersiblecomponents (SP) in the paper (without adhesive) as follows:SP% 5 MI2 MF!/MI# 3 100 (2)where:MI= mass of oven-
26、dried paper before water submersion,andMF= mass of oven-dried paper after water submersion.Average the results from the three sheets of paper.8.2.3 Oven dry and weigh the other three paper samples aspreviously described. Apply generous amounts of adhesiveover the paper in a manner similar to that us
27、ed on a box and inaccordance with manufacturers instructions. Let the adhesiveset on the paper for two hours. Oven dry and weigh thespecimens as previously described; take care not to disrupt theadhesive. Place specimens under water for 25 6 1haspreviously described. Remove from water and repeat the
28、drying and weighing operations.8.2.4 Calculate the mass of the adhesive (MA) on each sheetof adhesive coated paper as follows:MA5 MT2 MP(3)where:MT= mass of oven-dried paper with adhesive before waterimmersion, andMP= mass of oven-dried paper only for the same speci-men.8.2.5 Calculate the gross per
29、centage water soluble or dis-persible components (SG) in the paper and adhesive as follows:SG% 5 MT2 MW!/MA# 3 100 (4)where:MW= mass of oven-dried paper and adhesive after waterimmersion.Average the three specimens.8.2.6 Correct the gross percentage of loss of the adhesiveand paper (SG) by subtracti
30、ng the percentage lost by the paper(SP). This net test result is the percent of water soluble ordispersible components in the adhesive.8.2.7 InterpretationA maximum acceptable percentageloss may be specified in a contract or specification. It isgenerally accepted that a result of up to 2 % loss of m
31、ass couldbe attributed to incidental materials in the adhesive andexperimental variation. A result of over 2 % loss indicates thatfunctional components of the adhesive are removed by water.9. Report9.1 Report the following information:9.1.1 Statement that this test method was used, indicatingany dev
32、iations from the method,D5570/D5570M 1029.1.2 Complete identification of the tape or adhesive thatwas tested,9.1.3 Anomalous behavior during the test, and9.1.4 The percent of tape or adhesive dissolved or dispersedin water as determined by this test.10. Precision and Bias10.1 No statement is made ab
33、out either precision or bias ofthis test method since the result merely indicates whether thereis conformance to the criteria for success specified in theprocedure.11. Keywords11.1 adhesive; box closure; tape; water resistanceASTM International takes no position respecting the validity of any patent
34、 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 revision at
35、 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. Your comment
36、s 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 copyrighted b
37、y 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/).D5570/D5570M 103
