Zippers are similar to clothing in that they come in a variety of styles and configurations. As such, steam-iron temperatures should be adjusted based on the type of zip-tape being used. The temperature guidelines for steam irons identifies that temperatures should not exceed the following levels:
|Zipper type||Iron Temperature Standard|
|Plastic / Chunky Zip||not to exceed 100 degrees Celsius|
|Nylon / Spiral Zip||not to exceed 130 degrees Celsius|
|Invisible Zip less||not to exceed 130 degrees Celsius|
Do not press an iron directly onto a zipper. Use fabric between the iron element and zipper to prevent damage to the look and function of the zipper.
For a closed zipper: (eg trouser zip)
- Zipper should be closed (zipped together) with the slider/puller in a proper position (i.e. flattened along the zip) before ironing;
- Cover the zipper area and the slider with a protective soft material;
- Place a protective material between the garment interior and the zip to avoid leaving a zip-chain mark on the garment; and
- Iron the garment with the steam only function. Do not use high impact directly on the garment (especially on the zipper and button area).
For an open zipper (eg jacket front zip):
- Unzip the zipper, open the garment during ironing and avoid direct pressure on the zipper-chain and sliders. This will prevent leaving a zip-chain impression or a stain on the garment. It will also prevent damage to the zipper;
- Cover the zipper area with a protective soft material; and
- Place a protective material between the garment interior and the zip.
Ensure freshly ironed garments have cooled down before folding and packing. The heat may cause a chemical reaction with some fabrics (eg. PVC or water resistance material) where the fabric might absorb the zipper tape colour or leave a stain on the garment. Always place tracing paper between the garment interior and the zipper when packaging.