What Are U.S. Dollar Bills Made Of? Cotton and Linen Explained
U.S. dollar bills use currency paper made from 75% cotton and 25% linen, rather than the wood-pulp paper used for many everyday products. Small red and blue synthetic fibers are also embedded in the paper, according to the U.S. Currency Education Program.
That composition helps explain why a dollar feels different from a sheet of printer paper. It does not explain everything you feel, however. Printing contributes to the texture, too. And knowing what a genuine banknote is made of does not, by itself, establish whether a particular bill is genuine.
For a business that handles cash, the useful distinction is between the paper, features incorporated into it, and printing applied to it. Each tells you something different.
Are dollar bills actually paper?
Yes. Cotton-and-linen currency paper is a more accurate description than either "ordinary paper" or "cloth." The Bureau of Engraving and Printing's FAQ explicitly calls the material currency paper and confirms its cotton-and-linen composition.
"Made of cotton" does not mean a banknote is a piece of woven fabric. Cotton and linen describe the fibers used in the paper. Comparing dollar bills with clothing can make the blend memorable, but saying "dollars aren't paper at all" introduces another misconception.
It also helps to separate the paper blend from the finished banknote. The 75/25 description is not a complete inventory of everything in a printed bill. A finished note includes ink and features associated with its denomination and design. The official material description also identifies the embedded red and blue synthetic fibers separately.
For staff training, "special cotton-and-linen paper" gives people a useful starting point without suggesting that a banknote is ordinary printer paper or a small piece of cloth.
Why do dollar bills feel different?
Two parts of the answer matter: the paper and the printing.
The cotton-and-linen blend contributes to the paper's characteristic feel. Intaglio printing contributes to the raised texture of the printed note. The U.S. Currency Education Program explains this combination in its official discussion of banknote touch.
In intaglio printing, engraved plates and substantial pressure transfer ink to the sheet. The BEP's production guide explains that this process creates a slightly raised printed image. The texture is therefore not simply the result of cotton fibers: the way the note is printed also matters.
This distinction improves how a business explains currency to employees. "The paper feels different" and "the printing has a raised texture" refer to related but separate observations. Combining them into "real money always feels crisp" turns an explanation into an overly broad test.
Texture is useful background knowledge, not a stand-alone authenticity test.
What are the red and blue fibers?
The small red and blue fibers are synthetic fibers embedded in the currency paper. They should not be described as red cotton strands and blue linen strands.
There are two different descriptions here:
- Cotton and linen describe the paper's fiber blend.
- Red and blue synthetic fibers describe small fibers incorporated into the paper.
Recognizing what the fibers are is useful currency knowledge. Seeing a red or blue mark alone is not enough to establish authenticity.
How does this compare with polymer banknotes?
U.S. dollar bills use cotton-and-linen currency paper. Other currencies can use a different base material. Canada's polymer banknotes, for example, use a plastic-based material with transparent areas.
Material and printing still need to be considered separately. The Bank of Canada's guide to its $10 polymer note describes both its polymer construction and raised ink. Raised printing is therefore not a feature exclusive to cotton-and-linen banknotes.
The comparison is about different materials and currency designs, not a universal ranking of safety or quality. Do not transfer a rule about the feel or appearance of one currency directly to another.
For the separate question of what happens after Canadian notes leave circulation, read why Canada recycles its plastic banknotes.
What should businesses take away from this?
Use material knowledge to improve the language of cash handling, while keeping the limits of each observation clear.
| Common misconception | More accurate explanation |
|---|---|
| "Dollar bills aren't paper; they're cloth." | They are currency paper made with a cotton-and-linen blend. |
| "Cotton alone gives a dollar its distinctive feel." | Both the paper and intaglio printing contribute. |
| "The red fibers are cotton and the blue ones are linen." | The colored fibers are separately identified as synthetic. |
| "Plastic notes must be more secure than paper notes." | The substrate alone is not enough to compare the security of two banknote designs. |
| "Knowing the material tells us whether a bill is genuine." | Material knowledge does not replace checks appropriate to the note's denomination and design. |
Keep equipment questions separate, too. A description of the paper is not evidence that a particular counter can recognize a currency, and it does not explain every machine alert. Those questions require information about the specific equipment and supported notes, rather than an assumption based on cotton, linen or polymer.
When the task moves from learning about materials to examining an actual U.S. bill, use the official denomination guides. They provide a more appropriate next step than relying on a general claim about how "real money" should feel.