How Is Paper Made?

What Is Paper Made From?

Paper is made from tiny fibers from plants. You can see the fibers at the edge of a torn piece of paper.

You can make paper from many types of plant fibers. Paper-makers use fibers in straw, leaves, bamboo, sugar cane, and bark. Way back in history, most paper-makers used the fibers in cotton and linen rags. Today, most paper is made from wood fibers.

Fun Fact: The most important trees used for making paper are softwood trees. Softwoods include pine, fir, hemlock, and spruce. The long fibers in softwoods are ideal for making many kinds of paper. After paper is used, it can be reused, or recycled, to make new paper.

So, Who Invented Paper?

The ancient Chinese invented paper about 2,000 years ago. Chinese paper-makers used fibers from tree bark and old rags. The art of paper-making spread out from China about 500 years later. It finally arrived in Europe about 900 years ago.

The invention of the printing press in the 1400s made books popular, and the demand for paper increased. All paper was handmade until 1798. That’s when a Frenchman named Nicholas Robert invented a paper-making machine that could make paper in continuous rolls.

Before the invention of paper, ancient people used many different surfaces for writing. They wrote on clay, wood, stone, and metals. More than 4,500 years ago, the ancient Egyptians made a paper like material from a plant called papyrus. Papyrus reeds were cut into flat slices, layered, moistened with water, and pressed into sheets. The English word paper comes from the word papyrus.

How Is Paper Made?

Paper is made in two stages. The first stage is to remove the fibers from the wood. This is done by grinding the wood or cutting it into chips that are softened with chemicals. The wood fibers are then mixed with water to make a soup like substance called pulp.

The second stage is to spread out the pulp, press it flat, and dry it. This makes the fibers stick together in thin sheets. Some paper is still made by hand. But most paper is made by machines at factories called paper mills.

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What Are the Different Types of Paper?

Different kinds of pulp make different kinds of paper.

• Pulp made by grinding is called ground-wood pulp. It’s inexpensive to make, but the grinding breaks the wood fibers into very short pieces. Ground-wood pulp is used to make cheap papers, such as newsprint.
• Pulp made using chemicals is called chemical pulp. The chemicals separate the fibers from each other but do not break them. Chemical pulp is used to make stronger, longer-lasting paper for use in fine books and magazines.
• The best writing paper and stationary comes from cotton and linen rag fibers. Thin rag fibers are long, strong, and make very durable paper.
• Fiber from recycled paper is used to make paper towels, napkins, and tissue. Paper for printing is treated with special chemicals so the paper won’t absorb ink and cause fuzzy lines that are hard to read.

How Does A Paper-making Machine Work?

The main part of a paper-making machine is a wide belt made of tightly woven wire mesh. The belt moves in a loop, and it keeps moving all the time.

Pulp is poured evenly onto the belt at one end of the machine. As the belt moves along, water drains from the pulp. The fibers remain, leaving a mat of wet paper. The belt goes through metal rollers that squeeze out more water.

Now the paper is strong enough to be lifted off the belt. It passes between heated rollers that dry it completely. Finally, the paper is pressed tightly between cold metal rollers that make it smooth. The finished paper is wound onto large rolls or cut into standard sizes.

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