If u studied yarns and fabrics without first understanding fiber properties, what difficulties would you pos?
Plastic bottles apparently leaves some sort of residue in the water (I haven't done research on it yet, but I have heard about it)And I believe it only becomes a problem if you intend to use the same plastic bottle continuously.
I suppose some people might think it unhygienic because who really knows where the bottle has been before you buy it? If you say but there's a lid on it so the opening can't be dirty but what about if it falls off the conveyor belt before the lid is attached? But like my Grandad used to say You eat a ton of dirt before you die! so what's it really matter?
People primarily object to drinking from plastic bottles because they are bad for the environment.
but the plastic bottles aren't healthy either! They both have health concerns and destroy the environment! Drink from a glass ok?
You could study yarns and fabrics from several aspectsSpinning a yarn chemistry of fabrics dying of fabrics and yarns printing on fabrics clothing construction weaving draping rope making Fiber properties may include: physical strength chemical effects ability to spin into a yarn color absorption effect of sunlight tensile strength
