Why do wool sweaters stretch out?
The wool is a natural fiber that has the ability to stretch and contract. This property is due to the structure of wool fibers. Wool fibers, as explained by the article on the site Sewingiscool.com, are elastic and can extend when subjected to tension.
The structure of wool
The natural fibers of wool consist of a series of overlapping layers. The outermost, called the cuticle, is covered by small scales that overlap like roof tiles. These scales can open and close depending on humidity changes. This allows wool to absorb water and expand.
Why does wool stretch?
When a sweater made of wool is washed or gets wet, the wool fibers absorb water and swell. This causes the cuticle scales to open and the fiber to expand.
How to prevent wool from stretching?
To prevent a wool sweater from stretching, it is important to follow some simple care rules:
- Hand wash: wool sweaters should always be hand washed in cold water. Hot water causes the cuticles of the natural wool fibers to open, leading to fiber stretching.
- Do not wring: After washing, do not wring the wool sweater. This can stretch the fibers. Remove excess water by gently rolling the sweater in a towel.
- Dry flat: wool sweaters should always be dried flat to maintain their shape. Hanging wool sweaters can cause the wool fibers to stretch.
By following these simple rules, it is possible to keep wool sweaters in good condition and prevent unwanted stretching.
Remember, wool is a natural fiber and requires special care to maintain its beauty and functionality. On our blog you can find many articles about the care and maintenance of your wool sweaters.
