Abstract
The AATCC Sealed Jar test (Method 112) uses accelerated storage conditions to determine formaldehyde released from finished fabrics. A modification of the incu bation conditions of this test has been investigated in an attempt to provide a better measure of the free formaldehyde in fabric. By incubating test specimens at 20°C instead of at 49°C as in the standard test, there is less hydrolytic degradation of the finish. These modified conditions release 90% or more of the free formaldehyde from the test specimen but minimize the contribution of hydrolytically released formal dehyde from finish degradation due to incubation conditions of the test. Reproducibility of determinations was good. Typical results from DMDHEU-finished cottons in the modified and standard tests are presented. Sequential use of the tests in various com binations provides additional insight into free and easily released formaldehyde as well as that more difficult to release.
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