The answer is not so straightforward; the fact that the two fabrics are blended impacts how they react to heat and moisture.
Does a Cotton Polyester Blend Shrink?
Let’s look at the science behind cotton polyester blends and find out more about whether or not these clothes will shrink when exposed to heat.
Cotton Polyester Blends 101
First off, let’s get into the basics of cotton polyester blends. As the name suggests, these fabrics are made of cotton, and polyester fibers are woven in different proportions.
Generally, a 50/50 blend is most common, but other ratios also exist; for example, 60/40 or 70/30 blends might be available too.
Depending on the balance of each fabric used in production, the end product can have different properties, such as texture, breathability, flexibility, absorbency, and durability.
When it comes to shrinkage characteristics of cotton polyester blends, three possible outcomes depend on which proportion is more significant in the fabric blend:
- If the percentage of cotton is higher than that of polyester (for example, 70/30), then the fabric will shrink just like a regular 100% cotton material.
- When polyester fibers are higher than cotton fibers, such as in a 30/70 ratio, it results in an item that won’t shrink much at all.
- When both fibers are equally used in the blend (50/50), there may be some slight shrinkage, but not enough to make a difference.
In any case, it’s essential to always read care labels before washing your clothes to make sure!
It’s also worth noting that some synthetic fabrics such as Lycra or Spandex will generally not shrink even when exposed to high temperatures because they don’t absorb water as natural fabrics do.
So keep that in mind when shopping for clothing items with those materials included!
Now that we’ve explored whether cotton polyester shrinks, you know more about this unique fabric blend and its properties regarding heat exposure.
Generally speaking, if there’s more cotton than polyester in your garment, then yes – it will probably shrink – but if there’s more polyester, then no – your garment should stay true to size even after washing and drying!
Always be safe by checking care labels first so you can be sure of what you’re purchasing and caring for appropriately!