Mercerized vs unmercerized: Which will it be?

10/20/2011 at 7:03 am 3 comments

We cotton  lovers are really quite spoiled, compared with knitters, weavers & crochetters of the past.  The 21st century has given us such a great variety of high quality cotton yarns in a never-ending rainbow of vibrant colors!  But what to choose?  That’s the big question.  Mercerized vs unmercerized–what’s the difference?

Notice the sheen on the Pearly Perle mercerized yarns

Mercerized  Cotton:
The modern production method for mercerized cotton, also known as “pearl” or “pearle” cotton (that’s how we got the name Pearly Perle!) , gives cotton yarn a sodium hydroxide bath that is then neutralized with an acid bath. This treatment increases lustre, strength, affinity to dye, resistance to mildew and shrinkage. Mercerized yarns more readily accepts dye and hold the color longer. Cotton with long staple fibre lengths responds best to mercerization.

Smooth fibers after mercerization (bottom images)

Our Pearly Perle yarns fit the bill 100%!

It’s strength makes Pearly Perle a great choice for firm sturdy fabrics such as table runners and place mats or structures that can put stress on the yarn such as closely sett doubleweave or rep weave.

Check out our many Pearly Perle kits at http://www.cottonclouds.com

Pearly Perle is guaranteed to be light fast so it is also a great choice for other household textiles that are exposed to sunlight such as curtains, rugs, or pillows and it works well in garment fabrics. It also makes a nice crochet cotton or can be used by the machine
knitter.

It is avilable in a number of sizes from comes in a number of sizes (3/2, 5/2, 10/2 & 20/2). (Befuddled by these sizes? Check out our tips page for a quick rundown of what these numbers mean.)

Unmercerized Cotton
If it’s not mercerized (see above) then it’s got to be unmercerized!  So what’s the difference?

Mercerization made cotton easier to dye, but it also make it less absorbent—ironic huh? Unmercerized cottons retains the natural look of cotton and increased absorbency. Click Here to learn more about what makes cotton absorbent.

Check out our Aurora Earth kits at http://www.cottonclouds.com

Aurora Earth is an unmercerized cotton. Aurora Earth is a great choice for a weaver’s favorite—the hand towel. It is also great for napkins, bread cloths, and other absorbent fabrics. It is available in over 60 solid and 6 variegated colorways.

We also carry a wide variety of organic unmercerized cottons such as Fox Fiber 10/2, Pakucho Dark 10/2, Pakucho Light 10/2 and Ecocot. Organic cottons retain a lot of the cotton’s natural wax which leaves your fabric with a rich butter feeling that is still highly absorbent. Garments made out of organic unmercerized cotton are dreamy.

A Sampling of Cotton Clouds' Unmercerized & Mercerized Yarns

Both mercerized and unmercerized yarns are extremely affordable making it easyto throw on long warps and still do plenty of sampling before you begin your project. You will remember to sample, right? If you don’t’ feel like it better get one of our kits to make sure your project comes out perfect!

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Entry filed under: Of Interest. Tags: .

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3 Comments Add your own

  • 1. Connie Childs Peterson  |  10/23/2011 at 5:05 pm

    As you know, Aurora Earth is my favorite cotton yarn. But I have gotten hooked on Pearly Pearl for placemats and runners. They are both excellent cotton yarns and I love them both.

    Reply
  • 2. Diane  |  06/13/2014 at 6:28 pm

    Some of the information on this article is incorrect. Mercerization does not reduce absorbancy – it actually increases it. The reason that some mercerized yarns are less absorbant is because they are often more tightly twisted during spinning.

    Reply
    • 3. cottoncloudstore  |  06/13/2014 at 6:49 pm

      Thanks. Good point. Glad someone is reading our blogs. I’ll try to go in and correct it this weekend. We have a new blog with a new project you might enjoy; it’s still in development

      http://www.naturaldyeproject.wordpress.com Sign up for notice of posts. Thanks again Irene

      Reply

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