Standard Test Methods for Liner Removal at High Speeds from Pressure-Sensitive Label Stock

SIGNIFICANCE AND USE
These test methods are a tool for development and quality assurance use. Given a specific pressure-sensitive label and liner and a requirement in terms of the minimum for maximum peel value expected for this liner removal from the label, the data from the test can be used in conjunction with acceptance criteria.
SCOPE
1.1 These test methods cover the measurement of the adherence of the release liner to the adhesive of a pressure-sensitive adhesive label.
1.2 These test methods provide means of assessing the uniformity of the adhesion to the liner of a given type of pressure-sensitive label. The assessment may be within a sheet or roll between sheets or rolls or between production lots.
1.3 Variation in the label backing, liner, liner release coating, adhesive, and adhesive coating weight, affect the response. Therefore, these methods cannot be used to pinpoint the specific cause(s) of nonuniformity.
1.4 These test methods may not be appropriate to test labels having either relatively stiff backings or stiff liners, or backings showing high stretch at low forces. These characteristics will result in a high variability of the test response that is not a true indication of the real nature of the adhesive bond.
1.5 The values stated in inch-pound units are to be regarded as the standard. The SI units given in parentheses are for information only.
1.6 This standard does not purport to address all of the safety problems, 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.

General Information

Status
Historical
Publication Date
09-Apr-1998
Technical Committee
Drafting Committee
Current Stage
Ref Project

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ASTM D5375/D5375M-98(2004) - Standard Test Methods for Liner Removal at High Speeds from Pressure-Sensitive Label Stock
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D5375/D5375M – 98 (Reapproved 2004)
Standard Test Methods for
Liner Removal at High Speeds from Pressure-Sensitive
Label Stock
This standard is issued under the fixed designation D5375/D5375M; 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 D3715/D3715M Practice for Quality Assurance of
Pressure-Sensitive Tapes
1.1 These test methods cover the measurement of the
D4332 Practice for Conditioning Containers, Packages, or
adherence of the release liner to the adhesive of a pressure-
Packaging Components for Testing
sensitive adhesive label.
E122 Practice for Calculating Sample Size to Estimate,
1.2 These test methods provide means of assessing the
With Specified Precision, the Average for a Characteristic
uniformity of the adhesion to the liner of a given type of
of a Lot or Process
pressure-sensitive label. The assessment may be within a sheet
or roll between sheets or rolls or between production lots.
3. Terminology
1.3 Variation in the label backing, liner, liner release coat-
3.1 Definitions:
ing,adhesive,andadhesivecoatingweight,affecttheresponse.
3.1.1 General definitions for packaging and distribution
Therefore, these methods cannot be used to pinpoint the
environments are in accordance with Terminology D996.
specific cause(s) of nonuniformity.
3.2 Definitions of Terms Specific to This Standard:
1.4 These test methods may not be appropriate to test labels
3.2.1 pressure-sensitive label—the combination of face ma-
havingeitherrelativelystiffbackingsorstiffliners,orbackings
terial, pressure-sensitive adhesive, and liner.
showing high stretch at low forces. These characteristics will
3.2.1.1 Discussion—The adhesive is permanently tacky and
result in a high variability of the test response that is not a true
instantly adheres to whatever surface the label is designed for.
indication of the real nature of the adhesive bond.
Also, defined as a self-adhering label.
1.5 The values stated in either SI or inch-pound units are to
be regarded separately as standard. The values stated in each
4. Summary of Test Methods
system may not be exact equivalents; therefore, each system
4.1 Test Method A— The label stock is adhered to a rigid
must be used independently, without combining values in any
platform with double-coated tape with the liner side up. The
way.
liner is peeled from the adhesive at a specific rate. The liner is
1.6 This standard does not purport to address all of the
peeled back over itself at 180° angle.
safety concerns, if any, associated with its use. It is the
4.2 Test Method B— The label stock is adhered to a rigid
responsibility of the user of this standard to establish appro-
platform with double-coated tape with the liner side up. The
priate safety and health practices and determine the applica-
liner is peeled from the adhesive at a specified rate. The liner
bility of regulatory limitations prior to use.
is peeled from the label stock at an angle of 90° to the stock.
2. Referenced Documents
5. Significance and Use
2.1 ASTM Standards:
5.1 These test methods are a tool for development and
D996 Terminology of Packaging and Distribution Environ-
quality assurance use. Given a specific pressure-sensitive label
ments
and liner and a requirement in terms of the minimum for
maximum peel value expected for this liner removal from the
These test methods are under the jurisdiction of ASTM Committee D10 on
label, the data from the test can be used in conjunction with
Packaging and are the direct responsibility of Subcommittee D10.14 on Tape and
acceptance criteria.
Labels.
Current edition approved April 10, 1998. Published Oct. 1998. Originally
6. Apparatus
published as D5375–93. Last previous edition D5375–93. DOI: 10.1520/
D5375_D5375M-98R04.
6.1 Specimen Cutter— The specimen cutter shall hold two
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
single-edged razor blades in parallel planes, a precise distance
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
apart, to form a cutter of exact specimen widths. Two cutters,
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
D5375/D5375M – 98 (2004)
12.7 and 25.4-mm or 0.5 and 1-in. cutting width, shall be a means of moving the panel parallel with the direction of the
available. (See Fig. 1.) stressing clamp so that the specimen is held either in the same
plane or perpendicular to the stressing clamp and moved at a
NOTE 1—The 12.7-mm or 0.5 in. cutter shall consist of a 0.5 in. thick
uniform rate of 467 6 0.2 mm/s or 300 in./min away from the
by200mmor8in.lengthofaluminumbarstock12.7-mmor0.5in.wide.
clamp and a visual readout or an autographic device for
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 recording the load. Calibration should be performed as in the
opposite end shall be narrowed to exactly 12.7 mm or 0.500 in. minus the
manufacturers instructions in the operating manual.
thickness of a single razor blade (one or two used as cutting edges). The
razor blades shall be held in position using side plates. The end of the
7. Sampling
cutter shall be cut away at a 45° angle to expose the cutting edge at one
7.1 Sampling shall be in accordance with Practice D3715/
end of the blades. The edges shall be separated by 12.7 mm 6 0.127 mm
D3715M for rolls and Practice E122 for sheet stock.
or 0.500 6 0.005 in. A 25.4-mm or 1 in. cutter shall follow the same
description, except that the barstock width shall be 25.4 mm or 1 in. and 7.2 Useaminimumoffivesamplesfordevelopment.Thisis
shall be narrowed to exactly 25.4 mm or 1.00 in. minus the thickness of
common practice to use a minimum of five specimens taken
a single razor blade.
from several rolls or sheets, among several production runs of
6.2 Roller, mechanically operated: label stock. Strong conclusions about a specific property
6.2.1 A steel roller, 82 6 2.5 mm or 3.25 6 0.1 in. in cannot be based on test results of a single unit of product.
diameterand35 61.5mmor1.75 60.05in.inwidth,covered
8. Test Specimens
with rubber approximately 6.35 mm or 0.25 in. in thickness,
having a Shore Scale A durometer hardness of 80 6 5. The
8.1 The specimen shall be 25.4 mm or 1 in. wide. A
surfaceoftherollershallbeatruecylinderv
...

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