Paper Quality
There are various types of paper you can get. This can get a bit personal, and is dependent on your drawing style as well. There are a variety of paper weights available. Experience with your way of working and the materials you use will help you choose what you like best. For myself, I feel it is dependent on the kind of pencils I’m using (how dark or light they are), how much flipping is required (how much paper endurance is required), and the length of the scene I’m animating (this also effects the amount of strain on the registration punches in the paper and if they will tear and deform).
Quality animation paper is made with some translucency, so that you can see the impression of the drawing on the paper beneath the page you are working on. However this does not mean that it is flimsy. Professional animation paper is also made with the understanding that you will be doing a lot of flipping, and therefor it has to endure the physical demands that flipping places upon it, as well as any erasing and any corrections you are doing to your drawings. Pro animation paper is a specific design of paper.
Some suppliers offer a mid tier standard quality of paper. It is not made for high end professional use, but it is still reliable in most cases and good for lower end productions or student work.
Suppliers often offer a cheaper economy option as well. This paper is much more affordable but tears easily. It is similar to printer paper, however I believe it is even thinner, to offer some translucency. It is without the reinforced quality that professional paper provides. This is fine for when you are testing the waters in animation, but it will not be ideal for when you get into more sophisticated work as it gets damaged easily with flipping and erasing.
Back in the hand drawn days at Disney Feature Animation, we used Chromacolour Prograde Plus animation paper.
Chromacolour used to be a Canadian company but is now turned over in the U.K. The paper options are not exactly the same as they were before, but this would be the professional paper that is the equivalent:
https://www.chromacolour.co.uk/animationsupplies/animation-paper/pro-grade-animation-paper.html *
* There are many other suppliers that sell animation paper. You do not have to go with Chromacolour. I have always purchased through Chromacolour, so it is the only one I can suggest from my personal experience. I have heard good things about Lightfoot LTD as well. Both companies manufacture environmentally conscious paper which I appreciate as well!
Paper Texture
How much tooth or smoothness? This can depend on your drawing materials. The higher quality paper that is made specifically for animation usually has one side that is a little smoother, and another side that has a bit more tooth (rough texture) to it. Depending on the drawing materials** you use (how waxy or chalky your drawing pencils are), you may prefer the smooth side or you may prefer the toothier side. I appreciate that about quality paper, I like being able to have the option that works best with the pencils I’m using.
** Side note: choosing your drawing pencils is dependent on your approach to drawing. Let me know in the comments if this is something you’d like me to talk about in the future!
Punched vs. Unpunched