elastik
Why the band goes loose before the cups
Short answer: The band carries most of the weight and is stretched with every breath. The cups carry less and move le...
Read more
What wears out a bra strap
Short answer: The strap carries part of the weight all day, is stretched with every movement, and sits against skin t...
Read more
Why a sock slides down after six months
Short answer: The elastic thread in the shaft loses tension with every wear and every wash. When it can no longer pul...
Read more
How a sock cuff holds without squeezing
Short answer: A sock cuff needs just enough tension to hold the sock up and no more. The answer is a wide, soft rib w...
Read more
Why a pair of underpants goes loose at the thigh
Short answer: The leg edge is stretched every time you sit, walk and bend. It is the edge that works the most, and so...
Read more
What happens when the elastic breaks inside
Short answer: In a core-spun yarn the elastane thread sits inside a soft sheath. If the core breaks, the fabric looks...
Read more
Why the waistband rolls
Short answer: A narrow elastic in a soft fabric is not wide enough to lie stable. When the body moves, the band tips ...
Read more
How a waistband is built
Short answer: A waistband is either a woven elastic sewn onto the edge or a tunnel with an elastic inside. Both must ...
Read more
Why elastic tolerates sun poorly
Short answer: Ultraviolet light breaks the bonds in elastane in the same way it fades dye. The thread turns brittle, ...
Read more
What heat does to elastane
Short answer: Heat makes the molecular chains in elastane move faster, and the hard segments that hold the elastic to...
Read more
Why elastic gets tired
Short answer: Each time elastic is stretched, some of the bonds that pull it back break. Most form again, but a small...
Read more
How an elastic returns to its shape
Short answer: The molecule chains in elastane are coiled at rest. When pulled out, they lose their disorder, and when...
Read more
