Well, first of all...welcome to Anime Beta. If you look around this particular forum, you can find a lot of good information about collecting, preserving and everything inbetween.
Thanatos wrote:
- I read that the polypropylene (in particular the bags) are a great way to conserve cels. But I have also heard about the polyester. Which is the best ?
For cels, stick with polypropylene (PP) or polyethylene (PE). Polyester is good for paper stuff, but it's more expensive. Cels stick to polyester, so, keep polyester away from the cels. I use PP for cels and PE for paper stuff (including shikishi). I've been using PE for about a year, and I like it better than PP because it breathes and because it's easier to modify to the shape of the object you have without the need to cut stuff off.
- I have also heard about letting the cels breathe. I find this is adapted, but what about the dust ?
If you bag each item and place them in Itoyas, the chance of dust getting into the cel is very small.
- For cels conservation, many persons say that Itoya portfolios are very convenient. But which kind of Itoya is optimal, and in which site could it be bought (a site that shipps internationally please) ?
I use the Itoya Profolios in various sizes. I actually prefer the 18x24 but I also find the 13x19 and 11x17 nice too. I think it depends on the size of artwork that you have. If you have a lot of big or oddly shaped items, then an 18x24 might work out really well for you. But if you have mostly standard sized cels and backgrounds, the 11x17 might be best for you. There are some people on this forum that buy the Itoya pages and then store that in one of the Itoya binders.
Another option may be to buy some of the B4 sized polypropylene folders that are sold in Japanese stores. I have a lot of these folders that I bought at Daiso and, thanks to all the backgrounds I purchased this year, I've gone through a lot of them. I use these folders for backgrounds and for shikishi. I would recommend putting your valuable cels in Itoyas, maybe those items of lesser concern into one of these B4 PP folders.
I don't know who ships internationally. I buy mine on E-bay or Amazon, and there might be some sellers who will ship internationally. If you can't find any, let me know and I can pick one up and send it to you, provided you're willing to pay the shipping costs.
- When you store you cels in an Itoya, should it be stored with the douga ? And do the dougas need a poly bag before being stored in the Itoya ?
1) There is some debate on this. Some people choose to store all of the items together. There are some that choose not to separately bag them, and there are others who will separately bag the cel, background and douga, and then package them in the same bag, together. There are others who place the cels in one folder, the backgrounds in another, and the douga in yet another folder due to the acidic nature of the paper used and so that it won't react with the cel's fumes.
I bag mine separately but then place them all in the same large bag, together. This way, I can keep track of what goes with what. I haven't noticed any deterioration in any of items that I placed together while in my care and I do inspect quite regularly.
2) Yes, I'd put the dougas in a polybag. It helps to keep out dust, bugs, dirt and whatever else could possibly get in there. Besides, you don't want the paper to react with Itoya paper.
- Should the cels be stored in vertical postion or in horizontal position ?
I store the books horizontally so that the pages of the Itoya book do not put pressure on the other pages. Some people choose to make a rack and then hang the spine of the Itoya on the rack. Others choose to store their books on their spine. The main thing you have to worry about with folders and cels is the weight being placed on each individual cel...so, laying them flat and storing several books on top of each other is not a good idea.
Hope this helps
