Archival Quality Paper - Acid-Free, Lignin-Free And Wood-Free Paper?

[TechnicGeek]

Hey guys! Have been delving deep into paper type, coating etc. and basically trying to understand paper subtleties and got confused due to much information available and many sources.

 

I am trying to understand whether acid-free paper only has it's acid base at neutral or it also has lignin removed? Is acid-free synonym of archival quality paper but more detailed? Are both same pretty much?

 

Now I think some sources stated that acid-free is only that but nothing about lignin removed. I wonder how would one perform with and without lignin. What affects lignin that acid doesn't?

 

Finally wood-free paper. I read that lignin there is removed but nothing is mentioned about acid-free there. What is this type of paper? Was there wood removed and chemical substitute used?

 

Anyone knows if any of aforementioned terms affect writings of fountain pens? Things like feathering, bleed-through, ghosting (a.k.a show-through?)?

 

Cheers!

[TechnicGeek]

Does anyone know about websites that discuss paper subject on a deeper level? I want to make my diary and buy paper locally but one that fits the purpose of writing with rollerballs and gels.