First, wood is broken into very small pieces (fibers),
or pulp the wood. This can be done mechanically (usually with
a stone grinder) or chemically.
Second, the fibers are suspended in water to be washed
and/or bleached. Washing the fibers gets rid of chemicals that
might still be on the wood. Bleaching the fibers makes the paper
white. Not all paper is bleached--think of a piece of writing
paper and a grocery bag. The writing paper is bleached, but the
grocery bag isn't!
Third, The pulp is beaten. Beating the pulp unravels
the fibers a little. This makes them stick together better. The
pulp is beaten by putting it through two very close metal disks.
The disks grind the fibers up.
Fourth, a slurry is made by mixing the wood pulp with
Fifth, the slurry is poured onto a screen forming a mat.
The water drains away and leaves lots of fibers on the screen!
Sixth, since it's still a little damp, the paper has
to be thouroughly dried. This is usually done by rolling the paper
on big warm drums.
When the paper is dry, you've got finished paper!
Until the paper is used, it's stored on giant rolls. (They look
like huge toilet paper rolls!)