Olefin
The one common textile fibre that chlorine bleach does not decolour. That single property changes where it belongs and what may be used on it.
In detail
Olefin is polypropylene spun as a fibre, used widely in carpet, rugs and outdoor textiles. Its defining property for cleaning is one no other common fibre has: a professional body describes it as BLEACH-PROOF, and recommends it for laundry rooms and areas near swimming pools for exactly that reason. Where chlorine bleach takes the colour out of almost every other textile permanently — correctable only by dyeing or patching — olefin keeps it, because the colour is in the polymer rather than applied to it. That does not make it robust. It is a polyolefin, so it is OLEOPHILIC: oily soil is chemically similar to the fibre and is held tenaciously, which is why olefin carpets look greasy in traffic lanes while resisting water-based stains. Solvent has to be used carefully for the same reason. And it is one of the two fibres a professional body names as exceptionally hard to clear of filtration soiling, the fine airborne particulate that embeds at room edges. So the sequence inverts. On most textiles the water-based stain is the easy one and bleach is the catastrophe; on olefin bleach is survivable and the body oil from bare feet is the problem.
What works
Sodium hypochlorite (chlorine bleach) is safe on, in specific conditions, Olefin
Safe only in specific conditions
This is only appropriate within specific limits, and nothing is established outside them.
Only within these limits:
- The fibre must actually be olefin — most readers cannot tell, and being wrong is irreversible
- Bleach-proof means the COLOUR survives; it is not a clearance for the backing, the adhesive or anything underneath
The single exception in a category where everything else is permanent damage, and a manufacturer recommends the fibre for laundry rooms and poolside areas on exactly this basis.
Evidence
Supported
Sources
Consumer Floor and Furnishings Care Information: carpet topics
Institute of Inspection, Cleaning and Restoration Certification (IICRC) · Trade or professional body
Relied on for: That olefin fibres are bleach-proof, are the one exception to chlorine bleach causing colour loss on textiles, and should be considered for carpeted laundry rooms and areas near swimming pools. (states this directly)
Related
- Olefin is commonly affected by Filtration soil
Sources for this page
Sources
Consumer Floor and Furnishings Care Information: carpet topics
Institute of Inspection, Cleaning and Restoration Certification (IICRC) · Trade or professional body
Relied on for: That olefin fibres are bleach-proof and are the one exception to chlorine bleach causing colour loss on most textiles, that they should be considered for carpeted laundry rooms and areas near swimming pools, and that filtration soiling is exceedingly difficult to remove completely from wool or olefin carpets. (states this directly)