Soleplate
The face of the iron, and the part that transfers a mark straight onto a garment. Everything on it arrived from fabric, starch or scale.
Precautions
- Disconnect from the power supply first
- Do not apply to a hot surface
- Check the manufacturer's instructions
Start here
What this is, what tends to go wrong with it, and what to do about it.
Made from
What tends to go wrong
Food heated until it carbonised and bonded to the surface. Time and softening do the work; scouring powder does the damage.
Why it is difficult: Contact time, Carbonisation, Adhesion and cohesion, Why old stains are harder
A hard, chalky calcium carbonate deposit left by hard water. Dissolved by acids, essentially untouched by detergents.
Why it is difficult: Water hardness, Crystallisation, Adhesion and cohesion
- Fingerprintsvia its material
Skin oils transferred by touch. A greasy soil rather than a dirty one, which is why water alone does not shift them and why they return immediately.
Why it is difficult: Surfactancy
- Water marksvia its material
What hard water leaves behind when it evaporates instead of being wiped away. A mineral film, not dirt, and the fix is at the drying stage.
Why it is difficult: Water hardness, Evaporative deposition
- Rustvia its material
Hydrated iron oxide from corroding iron or steel. Distinguish a surface deposit, which cleans off, from active corrosion of the item itself, which does not.
Why it is difficult: Corrosion and passivation, Why old stains are harder, Adhesion and cohesion
- Greasevia its material
Fats and oils, which water alone cannot lift. Removed by surfactants, by heat, by solvents, or by alkalis that convert the fat into soap.
Why it is difficult: Why oil resists water, Emulsification
- Heat tintvia its material
The rainbow or brown bloom on stainless steel that has been heated. Not a deposit and not dirt: the metal's own surface oxide, thickened by heat.
- Cleaning product residue· no established method
What the last clean left behind. It attracts soil, so the surface gets dirty faster — and the usual response is to use more of what caused it.
Why it is difficult: Residue and resoiling, Soil shielding, Why different surfaces get different dirt
The science behind this: Polymerised oil, Corrosion and passivation, Water hardness, Chloride attack, Cleanability is designed in
Part of Steam iron.
In detail
A soleplate is a coated or polished metal plate run hot and pressed against textiles, so what accumulates on it is a mixture of melted synthetic fibre, starch and finishing products from the fabric, and mineral deposits carried out of the steam vents. Each of those transfers back onto the next garment, which is why a dirty soleplate is a laundry problem rather than an appearance one. The manufacturer's own routine after descaling is the useful one and it is mechanical: heat the iron and glide it over a cloth to clean the soleplate. That works because the deposits soften at ironing temperature and are picked up by the cloth. The steam vents are a separate problem, and the manufacturer's descaling routine rather than a cotton bud is what clears them.
Why
- Soleplate is explained by Polymerised oil
Related
- Soleplate is made from Stainless steel
- Soleplate is made from Non-stick coating
- Soleplate is commonly affected by Burnt-on food and carbon deposits
- Soleplate is commonly affected by Cleaning product residue
- Soleplate is commonly affected by Limescale
Hacks and claims involving this
- Descaling a steam iron with vinegar Does not work
Sources for this page
Sources
How do I descale my Philips Steam Iron?
Philips · Manufacturer documentation
Relied on for: That after descaling the iron is heated and glided over a cloth to clean the soleplate, and that scale comes out of the steam vents during the routine. (states this directly)