ASTM D6252 D6252M-1998(2004) Standard Test Method for Peel Adhesion of Pressure-Sensitive Label Stocks at a 90&176 Angle《压敏标签在90-176角度的剥离粘附力的标准试验方法》.pdf
《ASTM D6252 D6252M-1998(2004) Standard Test Method for Peel Adhesion of Pressure-Sensitive Label Stocks at a 90&176 Angle《压敏标签在90-176角度的剥离粘附力的标准试验方法》.pdf》由会员分享,可在线阅读,更多相关《ASTM D6252 D6252M-1998(2004) Standard Test Method for Peel Adhesion of Pressure-Sensitive Label Stocks at a 90&176 Angle《压敏标签在90-176角度的剥离粘附力的标准试验方法》.pdf(3页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: D 6252/D 6252M 98 (Reapproved 2004)Standard Test Method forPeel Adhesion of Pressure-Sensitive Label Stocks at a 90Angle1This standard is issued under the fixed designation D 6252/D 6252M; the number immediately following the designation indicates theyear of original adoption or, in the
2、 case of revision, the year of last revision. A number in parentheses indicates the year of lastreapproval. A superscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This test method covers the measurement of the peeladhesion of pressure-sensitive labe
3、l stocks. This test methodgives a measure of the adherence to a standard steel substrateor to other surfaces of interest for a pressure-sensitive labelstock.1.2 This test method provides a means of assessing theuniformity of the adhesion of a given type of pressure-sensitivelabel stock. The assessme
4、nt may be within a sheet or roll,between sheets or rolls, or between production lots.1.3 Variations in the label stock facestock and adhesive canaffect the response; therefore, this test method cannot be usedto pinpoint the specific cause(s) of nonuniformity.1.4 This test method may not be appropria
5、te to test labelstocks having either stiff backings or backings showing a highstretch at low forces. These characteristics could result in ahigh variability of the test response, which is not a trueindication of the real nature of the adhesive bond.1.5 The values stated in either SI or inch-pound un
6、its are tobe regarded separately as the standard. The values stated ineach system may not be exact equivalents; therefore, eachsystem must be used independently, without combining valuesin any way.1.6 This standard does not purport to address all of thesafety concerns, if any, associated with its us
7、e. 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:2A 666 Specification for Austenitic Stainless Steel, Sheet,Strip, Plate, and
8、 Flat BarD 996 Terminology of Packaging and Distribution Environ-mentsD 3715/D 3715M Practice for Quality Assurance ofPressure-Sensitive TapesD 4332 Practice for Conditioning Containers, Packages, orPackaging Components for TestingE 122 Practice for Choice of Sample Size to Estimate aMeasure of Qual
9、ity for a Lot or Process3. Terminology3.1 DefinitionsDefinitions of terms used in this testmethod are in accordance with Terminology D 996.3.2 Definitions of Terms Specific to This Standard:3.2.1 pressure-sensitive label stock, nthe combination offacestock (face material), pressure-sensitive adhesiv
10、e, andrelease liner.4. Summary of Test Method4.1 A strip of label stock is applied to a standard test panel,or other surface of interest, with controlled pressure. The labelstock is peeled from the panel at 90 angle at a specified rate,during which time the force required to effect peeling ismeasure
11、d.NOTE 1The pressure-sensitive adhesive (psa) is permanently tackyand instantly adheres to the surface for which the label stock is designed.A psa label stock also can be defined as a self-adhering label stock.5. Significance and Use5.1 This test method is a tool for quality assurance use.Given a pr
12、essure-sensitive label stock and a requirement interms of the minimum or maximum peel adhesion valueexpected for this label stock, the data from the test can be usedin conjunction with acceptance criteria.5.2 This test method can show the relative bond strength ofa given label stock to one or more s
13、urfaces of varied materialand texture as compared to the standard stainless steel panel.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 April 10, 1998. Published September
14、 1998.2For referenced 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, P
15、O Box C700, West Conshohocken, PA 19428-2959, United States.Substitution of panels representative of the proposed substratesfor the standard stainless steel panel would be acceptable forthis procedure.6. Apparatus6.1 Specimen Cutter3The specimen cutter shall hold twosingle-edged razor blades in para
16、llel planes, a precise distanceapart, to form a cutter of exact specimen width.NOTE 2A 25.4-mm or 1-in. cutter shall consist of a 25.4-mm or 1-in.thick by 200-mm or 8-in. length of aluminum bar stock 25.4 mm or 1 in.wide. The edges for about 125 mm or 5 in. from one end shall be slightlyrounded to f
17、orm a handle. The width of the bar for 75 mm or 3 in. fromthe opposite end shall be narrowed to exactly 25.4 mm or 1 in. minus thethickness of a single-edged razor blade (one of two used as cutting edges).The razor blades shall be held in position using side plates. The end of thecutter shall be cut
18、 away at 0.74 Rad or 45 angle to expose the cuttingedge at one end of the blades.6.2 Dispensing System for SolventsUse plastic washbottles.6.3 Panel3A 50 by 125-mm no less than 1.1-mm thick-ness ora2by5-in. panel no less than 0.043-in. thicknessstainless steel 302 or 304 in accordance with Specifica
19、tionA 666 having a bright-annealed finish. The surface roughnessheight shall be 50 6 5-nm or 2.0 6 0.2-uin. arithmeticalaverage deviation from the mean line. Panels showing stains,discoloration, or numerous scratches are not acceptable.6.4 Roller3, mechanically-operated.6.4.1 A steel roller 85 6 2.5
20、 mm or 3.25 6 0.1 in. indiameter and 45 6 1.5 mm or 1.75 6 0.05 in. in width, coveredby rubber approximately 6.5 mm or 0.25 in. in thickness,having a Shore Scale A durometer hardness of 80 6 5. Thesurface shall be a true cylinder void of any convex or concavedeviations. The mass of the roller shall
21、be 2040 6 45gor4.56 0.1 lb.6.4.2 No part of the apparatus shall increase the mass of theroller during use. The roller shall move mechanically at the rateof 5.0 6 0.2 mm/s or 12.0 6 0.5 in./min.NOTE 3A simple check to determine if the rubber surface is a truecylinder is to wrap the roller in a very t
22、hin paper (onion skin) and drag itacross a flat glass surface on which is placed a carbon paper face up. Thecarbon rubs off onto the thin paper wrapper to reveal high spots or hollowson the rubber surface.6.5 Adhesion TesterA constant-rate-of-extension (CRE)tension-type instrument shall be used. The
23、 instrument shallhave a means for rigidly holding a test panel or a test panelfixture and another means for holding one end of the labelstock specimen both having centers on one line. The instru-ment shall produce movement between the two points de-scribed above such that a 90 angle is maintained be
24、tween labelstock specimen and the test panel throughout the test. Theextension shall be at a uniform rate of 5.0 6 0.2 mm/s or 12 60.5 in./min. The force measuring system shall be calibrated toan accuracy of 0.5 % of full scale. The lowest required fullscale range is 0550 g or 020 oz. Above the 020
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