Hello all, this is my first post here. Over the past couple of months I have discovered the joys of leather and canvas crafting (even though they are usually very separate tasks, there is some cross over.) I have been trying to make journal covers and note pads out of 4/5 oz veg tan. For the most part I have had success, mainly by paying attention to threads here and taking a couple basic classes.
Over the last couple days I cut a piece of leather to 13x9 inches to make a notepad cover for a 5x8 mini legal pad. The leather was very dry feeling as I worked with it, some of the edges I made seemed to crumble as I beveled them. I wet the leather and put some stampings into the part that will be the cover flap, beveled the edges, same with the pieces that will be stitched to the inside to hold the paper pad and a section for loose pages. Next, after the water had dried, I rubbed a light coat of neatsfoot oil on it to give it some additional moisture and let it sit overnight. Yesterday I dyed the pieces and let them dry overnight. Today, I noticed the large piece had curled some and as I was buffing the dye, I realized the big 13x9 piece had shrunk considerably when I fit the pieces together to compare how they had taken the dye. When I remeasured the piece it is now 12-11/16s x 8-3/4s. I finished buffing it and rubbed some leather cream into it to replace what the might have dried out.
My question is, what would make the leather shrink so much? I know it's a natural/organic material and can shrink some but, I didn't think it would shrink this much. Would the dye (Fiebing's) make it shrink this much? Would the dryness of the leather before dying have anything to do with shrinkage? The other pieces didn't shrink and are still the size I cut them, but I may have cut them from a different piece of leather ( I cut a few pieces from another hide in other projects and started on a new one for this project) Is there anything I can do to make it expand again?
Thanks in advance for any insight.