ASTM D Resistance to Pilling. What This Test is Used For: This test is used to cover the resistance to the formation of pills and other related surface. ASTM D/DM Standard Test Method for Pilling Resistance and Other Related Surface Changes of Textile Fabrics: Random. Find the most up-to-date version of ASTM D at Engineering
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NOTE 6—The mass of a 6-mm long section of tex sliver is about 25 mg.
ASTM D3512 Random tumble pilling tester-fabric propensity to pilling
Hang the specimens on racks until dry, and in any case for at least 2 h. Take the specimens evenly spaced across the width of the laboratory sample or from three different panels in a garment. To eliminate any tendency for the liner to rotate, tape the outside edge of the liner to the chamber wall at the butt joint with a short piece of mm 1-in. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.
Selection, Number, and Preparation 9.
Since the overall acceptability of a specific fabric is dependent on both the characteristics of the pills and the other factors affecting surface appearance, it is suggested that fabrics tested in the laboratory be evaluated subjectively with regard to their acceptability and not rated solely on the number of pills developed. A series of standards, based on graduated degrees of surface change of the fabric type being tested, may be set up to provide a basis for subjective ratings.
China tester tool China a. NOTE 5—If there is not sufficient material to provide three standard-size specimens, run with the available number of specimens rather than adding a specimen from another fabric, since there may be a strong interaction between fabrics which will create misleading results. The pilling resistance of a specific fabric in actual wear varies more with general conditions of use and individual wearers than in replicate fabric specimens subjected to controlled laboratory tests.
As a minimum, the test samples should be used that are as homogeneous as possible, drawn from the material from which the disparate test results were obtained, and randomly assigned in equal numbers to each laboratory for testing.
Satm observed resistance to pilling is reported on an arbitrary scale ranging aastm 5 no pilling to 1 very severe pilling. Vacuum all specimens in this manner. There is no independent, referee method by which bias may be determined. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below.
A superscript epsilon e indicates an editorial change since the last revision or reapproval. Shipped in 15 days after payment. Apparatus and Materials 6. The test results showed that those fabrics with average ratings less than or equal to 2.
Counting the pills and weighing their number with respect to their size satm contrast, as a combined measure of pilling resistance, is not recommended because of the excessive time required for counting, sizing, and calculating. After each test, clean the bottom of the weight by wiping with a cloth wetted in a solution of detergent and water.
These factors are not evaluated when pilling is rated solely on the number of pills.
Originally approved in Tests run with one or two specimens, while not strictly comparable with standard tests, are considered more indicative than tests that include more than one fabric type. NOTE 2—An adequate speci?
Pilling Resistance Testing of Textile Fabrics Using ASTM and AATCC
Since the overall acceptability of a speci? The degree of fabric pilling is evaluated by comparison of the tested specimens with visual standards that may be actual fabrics, or photographs of fabrics, showing a range of pilling resistance.
Pressing the adhesive into the specimen face may be accomplished using the dispensing adtm in a closed con? In some cases the purchaser and the supplier may have to test a commercial shipment of one or more specific materials by the best available test method, even though the test method is not recommended for acceptance testing.
NOTE 7—Depending on the nature of the material under test, running times of other than 30 min may be more appropriate for evaluating the pilling tendencies of fabrics; for example, min intervals up to 30 min may d512 more indicative for certain knit or soft-woven fabrics. Precision and Bias It is advisable to have a separate set of in-house fabric rating standards for each surface effect to be rated.
Current edition approved Dec. Firmly grasp the specimen by a corner and allow the vacuum suction to draw the specimen inside. To cope with this problem in the laboratory, asgm a subsequent test using the used liner surface on which the silicone-treated fabric was tested with a standard in-house fabric of known pilling history. These factors are not evaluated when pilling is rated solely on the number of pills.
This experience should be borne in mind when adopting levels of acceptability for any series of standards. Record on the data sheet any hang-ups or other abnormal behavior of the specimens.
Within the text, the inch-pound units are shown in parentheses. The visual standards are most advantageous when the laboratory test specimens correlate closely d3521 appearance with worn fabrics and show a similar ratio of pills to fuzz.
The development of pills may be accompanied by other surface phenomena such as loss of cover, color change, or the development of fuzz. The development of pills may be accompanied by other surface phenomena such as loss of cover, color change, or the development of fuzz.