ASTM D5375/D5375M-98

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Designation: D 5375/D 5375M – 98
Standard Test Methods for
Liner Removal at High Speeds from Pressure-Sensitive
Label Stock
This standard is issued under the fixed designation D 5375/D 5375M; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope E 122 Practice for Choice of Sample Size to Estimate a
Measure of Quality for a Lot or Process
1.1 These test methods cover the measurement of the
adherence of the release liner to the adhesive of a pressure-
3. Terminology
sensitive adhesive label.
3.1 Definitions:
1.2 These test methods provide means of assessing the
3.1.1 General definitions for packaging and distribution
uniformity of the adhesion to the liner of a given type of
environments are in accordance with Terminology D 996.
pressure-sensitive label. The assessment may be within a sheet
3.2 Definitions of Terms Specific to This Standard:
or roll between sheets or rolls or between production lots.
3.2.1 pressure-sensitive label—the combination of face ma-
1.3 Variation in the label backing, liner, liner release coat-
terial, pressure-sensitive adhesive, and liner.
ing, adhesive, and adhesive coating weight, affect the response.
3.2.1.1 Discussion—The adhesive is permanently tacky and
Therefore, these methods cannot be used to pinpoint the
instantly adheres to whatever surface the label is designed for.
specific cause(s) of nonuniformity.
Also, defined as a self-adhering label.
1.4 These test methods may not be appropriate to test labels
having either relatively stiff backings or stiff liners, or backings
4. Summary of Test Methods
showing high stretch at low forces. These characteristics will
4.1 Test Method A— The label stock is adhered to a rigid
result in a high variability of the test response that is not a true
platform with double-coated tape with the liner side up. The
indication of the real nature of the adhesive bond.
liner is peeled from the adhesive at a specific rate. The liner is
1.5 The values stated in either SI or inch-pound units are to
peeled back over itself at 180° angle.
be regarded separately as standard. The values stated in each
4.2 Test Method B— The label stock is adhered to a rigid
system may not be exact equivalents; therefore, each system
platform with double-coated tape with the liner side up. The
must be used independently, without combining values in any
liner is peeled from the adhesive at a specified rate. The liner
way.
is peeled from the label stock at an angle of 90° to the stock.
1.6 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
5. Significance and Use
responsibility of the user of this standard to establish appro-
5.1 These test methods are a tool for development and
priate safety and health practices and determine the applica-
quality assurance use. Given a specific pressure-sensitive label
bility of regulatory limitations prior to use.
and liner and a requirement in terms of the minimum for
maximum peel value expected for this liner removal from the
2. Referenced Documents
label, the data from the test can be used in conjunction with
2.1 ASTM Standards:
acceptance criteria.
D 996 Terminology of Packaging and Distribution Environ-
ments
6. Apparatus
D 3715/D 3715M Practice for Quality Assurance of
2 6.1 Specimen Cutter— The specimen cutter shall hold two
Pressure-Sensitive Tapes
single-edged razor blades in parallel planes, a precise distance
D 4332 Practice for Conditioning Containers Package or
2 apart, to form a cutter of exact specimen widths. Two cutters,
Package Components for Testing
12.7 and 25.4-mm or 0.5 and 1-in. cutting width, shall be
available. (See Fig. 1.)
NOTE 1—The 12.7-mm or 0.5 in. cutter shall consist of a 0.5 in. thick
These test methods are under the jurisdiction of ASTM Committee D-10 on
by 200 mm or 8 in. length of aluminum bar stock 12.7-mm or 0.5 in. wide.
Packaging and are the direct responsibility of Subcommittee D10.14 on Tape and
Labels.
Current edition approved April 10, 1998. Published Oct. 1998. Originally
published as D 5375–93. Last previous edition D 5375–93.
2 3
Annual Book of ASTM Standards, Vol 15.09. Annual Book of ASTM Standards, Vol 14.02.
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D 5375/D 5375M
uniform rate of 467 6 0.2 mm/s or 300 in./min away from the
clamp and a visual readout or an autographic device for
recording the load. Calibration should be performed as in the
manufacturers instructions in the operating manual.
7. Sampling
7.1 Sampling shall be in accordance with Practice D 3715/
D 3715M for rolls and Practice E 122 for sheet stock.
7.2 Use a minimum of five samples for development. This is
common practice to use a minimum of five specimens taken
from several rolls or sheets, among several production runs of
label stock. Strong conclusions about a specific property
cannot be based on test results of a single unit of product.
8. Test Specimens
8.1 The specimen shall be 25.4 mm or 1 in. wide. A
tolerance of 0.40 mm or 6 ⁄64in. shall be allowed. The length
shall be approximately 150 mm or 6 in.
8.2 If the samples are in a roll form discard at least three but
no more than six outer wraps of label from the sample roll
FIG. 1 Specimen Cutter
before taking the specimen for testing.
8.3 Remove one specimen, minimum length of 150 mm or
6 in. per sample roll or sample sheet.
The edges for about 125 mm or 5 in. from one end shall be rounded
slightly to form a handle. The width of the bar for 75 mm or 3 in. from the 8.4 When the label stock is wider than 25.4 mm or 1 in.
opposite end shall be narrowed to exactly 12.7 mm or 0.500 in. minus the
specimens of the widest specified width are to be cut from the
thickness of a single razor blade (one or two used as cutting edges). The
center strip removed from the roll or sheet.
razor blades shall be held in position using side plates. The end of the
cutter shall be cut away at a 45° angle to expose the cutting edge at one
9. Conditioning
end of the blades. The edges shall be separated by 12.7 mm 6 0.127 mm
9.1 Condition the sample roles in the standard conditioning
or 0.500 6 0.005 in. A 25.4-mm or 1 in. cutter shall follow the same
atmosphere as described in Practice D 4332 for a period of not
description, except that the barstock width shall be 25.4 mm or 1 in. and
shall be n
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