There are many reasons why textile manufacturing processes leave formaldehyde on the fabric. The main culprits are “wash and wear”, “wrinkle free” and “noniron” treatments. These processes often use resins which have the ability to “free” quantities of formaldehyde. Also preservatives in chemicals e.g. auxiliaries for coating, printing and finishing can deliver formaldehyde after processing. There is a great demand in textile industry to have common methods and standards to measure residual formaldehyde on fabrics. Formaldehyde on the test fabric is transferred into a solution containing a special reagent by forced desorption in the MORAPEX system. The test reagent is delivered in pre-filled, sealed test tubes. The extraction process takes a few minutes. Parameters and timing are pre-programmed on the MORAPEX machine and depend on the selected method.
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