While it’s easy to accidentally scorch polyester with an iron, it’s quite tricky to make it shrink. Polyester holds out better than many natural fabrics in this regard. High heat releases this tension and allows the fibers to snap back into their shorter, original length. Fabric fibers are spun and stretched out into threads before being woven into cloth. This holds true for most kinds of fabric. Submersing polyester in boiling water will cause its fibers to constrict and shrink. However, ironing may scorch or melt the fabric. We’re not talking about sitting in the stands at your daughter’s soccer practice in ninety-degree weather kind of heat. ![]() ![]() So, what does actually shrink polyester? There’s a very simple answer: high heat. It’s not easy, but you can melt, shrink, or misshape polyester by exposing it to temperatures that warp or melt those tough little fibers. (Please don’t dump your shirt into a body of water, though! It would damage the local environment, even if the polyester itself remained untouched!).Īll that said, you can destroy any fabric, even a synthetic polyester if you do not take the proper steps to care for it. You could probably throw a 100% polyester shirt into the Mississippi river way up in Minnesota, watch it tumble its way through 31 states, and then fish it out of the Gulf of Mexico pretty much undamaged. So, as long as you keep polyester away from very high heat, it will pretty much last forever! Normal washing and drying settings should never damage a 100% polyester garment. These lab-designed fibers can withstand a lot without getting damaged. Its fibers begin life as a chemical reaction between an alcohol and an acid, have a brief life cycle as brittle shards of plastic, and then become molten plastic melted and spun out into tiny threads. Polyester fabric is essentially plastic it’s a synthetic fabric made with long, durable yarns. On top of that, special chemical treatments give many polyester garments extra protection against shrinkage. While you can melt this fabric at a high enough temperature, the polymer fibers are designed specifically for their strength and durability and can withstand pretty tough circumstances without stretching or shrinking. It is difficult to shrink 100% polyester. ![]() Does Polyester Shrink When Dry Cleaned?.Do Polyester Blends Shrink in the Wash?.
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