( Please help us to enlarge these “Incorrect Concepts” and contact us to add  related comments to the list ).

1- Mistake: PP can not be dyed, can not be exposed to heat and is not resistant to sun.
Therefore PP is a poor synthetic with a very limited usage area.
Reality:PP can be dyed during spinning and the color fastness is the highest amongst all the synthetic yarns. New color development is much easier today.   
  
Dyeable PP is already a half solved problem and will be developed in the future. Printable PP is not anymore 
a dream.
PP can resist heat more when it is combined with other yarns and not used 100% on it’s own. PP cold finishing and  steam finishing are already known processes.
  
Anti UV treatments can protect the PP CF yarns against risky outdoor applications like garden furniture fabrics, automotive, etc ...
2- Mistake: PP is a very rigid and high tenacity yarn and is very good for big sacksetc.
Reality: Actually PP CF can be produced very soft and can be consumed in very delicate applications 
(activewear, sportswear ...).