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ASTM D3121-06

(Test Method)

Standard Test Method for Tack of Pressure-Sensitive Adhesives by Rolling Ball (Withdrawn 2015)

Standard Test Method for Tack of Pressure-Sensitive Adhesives by Rolling Ball (Withdrawn 2015)

SIGNIFICANCE AND USE
The rolling-ball tack test is fast, easy to run, and requires little investment in equipment and little operator training. This test is intended primarily for quality control use since it demonstrates good reproducibility within a single laboratory and ability to detect batch-to-batch variations accurately if adhesive film thickness is held constant. Rolling ball tack is not intended as an investigative tool since for most pressure sensitive adhesive applications rolling ball tack results do not correlate well with application tack requirements.
FIG. 1 Adhesion Test Apparatus and Specimen Showing Distance of Roll That is Measured
FIG. 2 Incline for Adhesion Test
SCOPE
1.1 This test method covers measurement of the comparative tack of pressure-sensitive adhesives by a rolling ball and is most appropriate for low-tack adhesives. This test method is only one of several available for the measurement of tack.
1.1.1 This test method is not recommended for the specification of end use products.
1.2 Values stated in either SI or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents, therefore, each system must be used independently without combining values in any way.
This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
WITHDRAWN RATIONALE
This test method covered measurement of the comparative tack of pressure-sensitive adhesives by a rolling ball.
Formerly under the jurisdiction of Committee D10 on Packaging, this test method was withdrawn in January 2015 in accordance with section 10.6.3 of the Regulations Governing ASTM Technical Committees, which requires that standards shall be updated by the end of the eighth year since the last approval date.

General Information

Status
Historical
Publication Date
28-Feb-2006
Withdrawal Date
12-Jan-2015
ICS
83.180 - Adhesives
Technical Committee
D10 - Packaging
Drafting Committee
D10.14 - Tape and Labels
Current Stage
Ref Project

Relations

Replaces
ASTM D3121-05 - Standard Test Method for Tack of Pressure-Sensitive Adhesives by Rolling Ball
Effective Date
01-Mar-2006
Replaced By
ASTM D3121-17 - Standard Test Method for Tack of Pressure-Sensitive Adhesives by Rolling Ball
Effective Date
01-May-2017
Referred By
ASTM D6123/D6123M-97(2020) - Standard Specification for Pressure-Sensitive Tape for Light-Duty Packaging and General Purpose Masking
Effective Date
01-Mar-2006
Referred By
ASTM D6465-99(2016) - Standard Guide for Selecting Aerospace and General Purpose Adhesives and Sealants
Effective Date
01-Mar-2006

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ASTM D3121-06 - Standard Test Method for Tack of Pressure-Sensitive Adhesives by Rolling Ball (Withdrawn 2015)ASTM D3121-06 - Standard Test Method for Tack of Pressure-Sensitive Adhesives by Rolling Ball (Withdrawn 2015)
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ASTM D3121-06 - Standard Test Method for Tack of Pressure-Sensitive Adhesives by Rolling Ball (Withdrawn 2015)
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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D3121 − 06
StandardTest Method for
1
Tack of Pressure-Sensitive Adhesives by Rolling Ball
This standard is issued under the fixed designation D3121; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope accelerate down the incline and roll on to a horizontal surface
covered with a pressure-sensitive adhesive. Tack is determined
1.1 This test method covers measurement of the compara-
by measuring the distance that the ball travels across the
tive tack of pressure-sensitive adhesives by a rolling ball and is
adhesive before stopping.There are two major retarding forces
most appropriate for low-tack adhesives. This test method is
applied by the adhesive to the ball: (1) the adhesion between
only one of several available for the measurement of tack.
the ball and the adhesive, often called “grab,” and (2) the
1.1.1 This test method is not recommended for the specifi-
“plowing effect” or energy required to push the adhesive out of
cation of end use products.
the ball’s path.
1.2 Values stated in either SI or inch-pound units are to be
4.2 Test results are influenced by (1) adhesive film
regarded separately as standard. The values stated in each
thickness, (2) bond of adhesive to backing, and (3) backing
system may not be exact equivalents, therefore, each system
rigidity, so these factors must be carefully controlled for
must be used independently without combining values in any
satisfactory comparisons.
way.
1.3 This standard does not purport to address all of the
5. Significance and Use
safety concerns, if any, associated with its use. It is the
5.1 Therolling-balltacktestisfast,easytorun,andrequires
responsibility of the user of this standard to establish appro-
little investment in equipment and little operator training. This
priate safety and health practices and determine the applica-
test is intended primarily for quality control use since it
bility of regulatory limitations prior to use.
demonstrates good reproducibility within a single laboratory
and ability to detect batch-to-batch variations accurately if
2. Referenced Documents
adhesivefilmthicknessisheldconstant.Rollingballtackisnot
2
2.1 ASTM Standards:
intended as an investigative tool since for most pressure
D907 Terminology of Adhesives
sensitive adhesive applications rolling ball tack results do not
E171 Practice for Conditioning and Testing Flexible Barrier
correlate well with application tack requirements.
Packaging
D5750/D5750M Guide for Width and Length of Pressure-
6. Apparatus (Fig. 1 and Fig. 2)
Sensitive Tape
6.1 Inclined Trough equipped with a release lever at the top
through which the ball gains downhill momentum. The ball is
3. Terminology
7
a11mm( ⁄16in.)diametersteelballunlessotherwisespecified.
3.1 Definitions—Many of the terms found in this test
method are defined in Terminology D907.
7. Reagents
7.1 Purity of Reagents—Reagent grade chemicals should be
4. Summary of Test Method
used in all tests. Other grades may be used, provided it is first
4.1 In the determination of tack by the rolling-ball method,
ascertained that the reagent is of sufficiently high purity to
a steel ball is released at the top of an incline, allowed to
permit its use without lessening accuracy of the determination.
7.2 Solvents:
1
This test method is under the jurisdiction of ASTM Committee D10 on
7.2.1 Any of the following solvents may be used for
Packaging and is the direct responsibility of Subcommittee D10.14 on Tape and
cleaning:
Labels.
7.2.1.1 Diactone alcohol non-residual, technical grade or
Current edition approved March 1, 2006. Published April 2006. Originally
better,
approved in 1973. Last previous edition approved in 2005 as D3121 – 05. DOI:
10.1520/D3121-06.
7.2.1.2 Methanol (95 %),
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
7.2.1.3 Methyl ethyl ketone (MEK),
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
7.2.1.4 n-Heptane, or
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. 7.2.1.5 Acetone.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D3121 − 06
surfaces with fingers.The cleaned surface should be allowed to
dry at standard conditions for at least 10 min. If cleaned
apparatus is not used within 10 h, it should be recleaned.
NOTE 1—All operations with solvents should be conducted in a
well-ventilated hood.
10.3 Arrange the specimen to be tested, adhesive side up, in
linewiththeinclinedtrough.Thesp
...

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5.1 These test methods provide a quantitative measure of the pressure-sensitive tack property of an adhesive.
FIG. 1 Loop Tack Test Fixture 1  
FIG. 2 Loop Tack Test Fixture 2  
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5.1 When a box becomes wet, the performance of the box and its closure are reduced. It is desirable to have box closure methods that retain an ability to keep the box closed when wet. Sealing or reinforcing methods sometimes are useful to improve performance of wet boxes and closures. Water resistance is sometimes a regulatory or contractual requirement.  
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SCOPE
1.1 This specification covers film, paper, and cloth pressure-sensitive tapes used for box closure and sealing.  
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This specification covers paper-backed pressure sensitive tapes used for light-duty packaging and masking. The paper presents two types of pressure-sensitive tape: type I - crepe paper backed, and type II - flat paper backed. The materials used in the construction of the tape shall be such as to ensure conformance to the requirements specified. The tape shall comply with the physical requirements specified. Specimen preparation shall be as specified in the appropriate test method. Number of tests per unit of product shall be as specified in the appropriate test method. Accelerated aging, adhesion, tensile and elongation, tack, and thickness shall be tested to meet the requirements specified.
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4.1 Conformance to this guide will reduce chances of misunderstanding between suppliers and users of pressure-sensitive tapes.  
4.2 It is recommended that this guide be referenced where widths and lengths of pressure-sensitive tapes are stated, such as in contracts, orders, advertisements, and labeling.
SCOPE
1.1 This guide provides guidelines for widths and lengths of pressure-sensitive tape, including tolerances and labeling in the inch-pound and SI systems. It is not intended for tapes used for medical, surgical, or label stock purposes.  
1.2 Units stated in the inch-pound system followed by a calculated unit in the SI system are to be regarded separately as standard and should not be interchangeable with units stated in the SI system. The units stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other.  
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