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how do you know if material is cotton or polyester?

10 Answers

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  • Ann
    Lv 7
    2 months ago

    Read the label on the article of clothing. It will tell you, along with washing instructions.

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  • Anonymous
    2 months ago

    The label says it.  Also says it does not shrink(is poly)   If it shrinks it is cotton.  Usually most is a blend of the two. Always assume it to be cotton, so do not use bleach if it is colored.

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  • 2 months ago

    Use a single drop of bleach on a small area--if the color leaches out, it's cotton. If it doesn't, it's polyester. 

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  • Anonymous
    2 months ago

    Set fire to it. Cotton will smoulder but doesn't shrivel. A lot are mixes these days which give you a lot of the benefits of both fibres, ie stability and breath-ability.  I have a fibre allergy but can tolerate up to 70/30 modern cotton-poly without any real problem.

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  • Anonymous
    2 months ago

    Read the label on the clothing, usually the labels always states the fabric of the clothing.

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  • Brisco
    Lv 4
    2 months ago

    You can place a small bit of the fabric over a flame. Once is catches fire, blow it out quickly.  If it smokes a lot and the smoke smells like burnt paper, it's cotton. If it melts and crinkles up like plastic, it's polyester (or some other synthetic fabric). 

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  • 2 months ago

    Check the tag. Worst case scenario, if there is no tag then look up the brand and clothing type (ex. Shirt, pants, etc) online and there should be a description of the material the clothing is made of :)

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  • Anonymous
    2 months ago

    Read the label if you can't tell the difference.

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  • Anonymous
    2 months ago

    You read the little tag on the garment or the spool the fabric comes on.

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  • Jim
    Lv 7
    2 months ago

    Read the label.

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