Tissue paper or simply tissue is a lightweight paper or, light crêpe paper. Tissue can be made from recycled paper pulp.
Key properties are absorbency, basis weight, thickness (caliper), bulk (specific volume), brightness, stretch, appearance and comfort.
Tissue paper is produced on a paper machine that has a single large steam heated drying cylinder (yankee dryer) fitted with a hot air hood.
The raw material is paper pulp.
The yankee cylinder is sprayed with adhesives to make the paper stick. (source)
So can chinchillas eat tissues?
Well they can chew them, however do watch for choking as they can’t digest them.