1、Designation: D6295/D6295M 98 (Reapproved 2011)Standard Test Method forDispensability of LightDuty PressureSensitive Film Tape1This standard is issued under the fixed designation D6295/D6295M; the number immediately following the designation indicates theyear of original adoption or, in the case of r
2、evision, the year 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 the measurement of the forceand elongation required to dispense pressure-
3、sensitive film tapeon a 1-in. core intended for office and stationery applicationsfrom a desk-top dispenser.1.2 The values stated in either SI or inch-pound units are tobe regarded separately as standard. The values stated in eachsystem are not exact equivalents; therefore, each system mustbe used i
4、ndependently of the other.1.3 This standard does not propose 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 pr
5、ior to use.2. Referenced Documents2.1 ASTM Standards:2D996 Terminology of Packaging and Distribution Environ-mentsD3715/D3715M Practice for Quality Assurance ofPressure-Sensitive TapesD4332 Practice for Conditioning Containers, Packages, orPackaging Components for TestingE122 Practice for Calculatin
6、g Sample Size to Estimate,With Specified Precision, the Average for a Characteristicof a Lot or Process2.2 Commercial Item Description (CID):A-A-113 Tape, Pressure-Sensitive Adhesive33. Terminology3.1 DefinitionsTerminology found in Terminology D996shall apply.3.2 Definitions of Terms Specific to Th
7、is Standard:3.2.1 dispensabilitythe initial force and elongation re-quired to sever or cut off a strip of pressure-sensitive film tapefrom a roll using specific test conditions and specific bladedescribed in this test method.4. Significance and Use4.1 Pressure-sensitive film tapes are supplied in ro
8、ll form.For such a tape to be useful a strip of the tape must be easilydispensed or severed from the roll by means of a cutter foundon most dispensers. This test method is a means of measuringthe ease of this severing or dispensing of the tape.4.2 This test method provides information that can be us
9、edin material specifications for product design and qualityassurance applications. It can be used in comparing differenttape products on specific dispensing blades.4.3 This test method may be suited for office and stationeryand tapes with acetate, cellophane, or light-duty plastic back-ings. Some ta
10、pes may be shown to be difficult to dispenseunder these conditions yet are readily dispensable with otherdispensing systems.NOTE 1Backings described in CID A-A-113 are typical backings.5. Apparatus5.1 Tension TesterA constant-rate-of-extension (CRE)type with load cell capacity such that the maximum
11、expecteddispensing force does not exceed 90 % of its normal limit. Ameans of moving the stressing clamp at a uniform rate of 250mm/min or 10 in./min. Test information should be displayedgraphically with a sampling rate of at least 100 data points persecond.5.2 BladeManufactured in accordance with in
12、formationgiven in Fig. 1.NOTE 2The blade used in models C-15, C-38, C-40, and C-41dispensers4meets these requirements. This blade has been found to besuitable for this testing.5.3 Blade Support FixtureThe test fixture, as shown inFigs. 2 and 3, shall have a means of rigidly mounting the bladein the
13、tensile tester so that the land portion faces at 30 downfrom the vertical and rotates the blade 10 from the horizontal.1This test method is under the jurisdiction of ASTM Committee D10 onPackaging and is the direct responsibility of Subcommittee D10.14 on Tape andLabels.Current edition approved Apri
14、l 1, 2011. Published April 2011. Originallyapproved in 1998. Last previous edition approved in 2004 as D6295/D6295M 98(2004). DOI: 10.1520/D6295_D6295M-98R11.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of A
15、STMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from General Services Administration, Federal Supply ServiceSpecifications Section (3FP-E), Suite 8100, 470 East LEnfant Plaza, SW, Wash-ington, DC 20407.4Available from Chemsultants Internati
16、onal, 9349 Hamilton Dr., Mentor, OH440611118.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.5.4 Blade ChangeIn the normal course of events the bladeshould be changed at least every 1000 uses or when there isevidence of damage or wea
17、r. A new blade should be used forreferee testing.6. Sampling6.1 Acceptance SamplingAcceptance sampling shall be inaccordance with Practice D3715/D3715M.6.2 Sampling for Other PurposesThe sampling and thenumber of test specimens depends on the purpose of thetesting. Practice E122 is recommended. It i
18、s common to test atleast five rolls of a particular tape, and wherever possible,among several production runs of tape. Strong conclusionsabout a specific property of a tape cannot be based on test of asingle roll of product.7. Test Specimen7.1 The specimens shall be 18 mm or34 in. wide. Atolerance o
19、f 60.8 mm or132 in. shall be allowed. The lengthshall be approximately 150 mm or 6 in.7.2 Discard at least three but not more than six outer wrapsof tape from the sample roll before taking the specimen fortesting. Take at least 10 specimens per roll.8. Conditioning8.1 Condition the sample rolls of t
20、ape in the standardconditioning atmosphere as described in Practice D4332 for aperiod of not less than 24 h. Test at these conditions.9. Procedure9.1 Mount the fixture containing the dispenser blade in thelower jaw of the tensile tester so that the plane of the land is30 from the vertical with the r
21、ow of teeth uppermost, facingthe operator and at 10 from the horizontal. The distancebetween the teeth of the blade and the upper jaw shall be 50mm or 2 in. measured from the tape edge which will first bepunctured by the dispenser blade teeth. The combination of therate of movement of the jaw and th
22、e jaw separation from thedispensing teeth provides a strain rate of 500 %/min.9.2 Fold over end of tape specimen (see 7.1)12mmor12 in.to form a tab and place in jaw.9.3 Place this tab in the upper jaw of the tester making surethat it is aligned such that the edge of the specimen is parallelto the mo
23、vement of the stressing jaw. Firmly adhere theadhesive side of the lower portion of the specimen to the landFIG. 1 BladeD6295/D6295M 98 (2011)2of the blade, over the teeth of the blade with very slight tensionon the tape specimen. Take care that the teeth do not penetratethe tape.9.4 Operate the str
24、essing jaw at 250 mm/min. or 10 in./min.until the blade has severed the specimen.9.5 Run ten measurements per roll.10. Calculation10.1 From the graph determine the highest dispensing force.This is normally the initial puncture force.10.2 The stretch at dispensing is determined from the graph.The tim
25、e between the initial increase in force and the maxi-mum force obtained in 10.1 is recorded. This time (in minutes)is then multiplied by the strain rate of 500 %/min. to give thepercent stretch.10.3 Calculate the average of each roll and use this as onetest determination.11. Report11.1 The report sh
26、all include the following:11.1.1 Statement that this test method was used and indi-cating any deviations from the test method as written.11.1.2 Complete identification of each roll of tape tested,including source, manufacturers code number, and form.11.1.3 Anomalous behavior during the test (that is
27、, splittingof backing, dispensing not at blade, etc.)11.1.4 Report the dispensing force in newtons or pounds-force to two significant places.12. Precision and Bias12.1 PrecisionBased on data provided by one laboratory,the typical repeatability standard deviation for the peak force isabout 0.45 N (0.
28、1 lb); the typical repeatability standarddeviation for the elongation is about 1.8 percentage points. Theactual standard deviation will also depend on the specific tapetested. The between laboratory reproducibility of this methodis being determined.12.2 BiasNo information can be presented on the bia
29、s ofthe procedure in this test method because no accepted referencevalue is available.13. Keywords13.1 dispensability; pressure-sensitive; tapeFIG. 2 Tape and BladeD6295/D6295M 98 (2011)3ASTM International takes no position respecting the validity of any patent rights asserted in connection with any
30、 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 any time by the responsible technical
31、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 comments will receive careful consideration at
32、 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 by ASTM International, 100 Barr Harbor D
33、rive, 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/).FIG. 3 Blade Support FixtureD6295/D6295M 98 (2011)4
