Sheet manufacturing apparatus, sheet manufacturing method, resin powder, and sheet
A sheet manufacturing apparatus according to the invention has a mixing unit that mixes fiber and resin powder in air; and a sheet forming unit that forms a sheet by laying and heating the mixture mixed by the mixing unit; the grindability index of the resin contained in the resin powder being 0.8 or less.
1. A sheet manufacturing method comprising:
a mixing step of mixing fiber and resin powder in air; and
a sheet forming step of forming a sheet by laying and heating the mixture mixed in the mixing step;
the grindability index of the resin contained in the resin powder being 0.8 or less.
2. The sheet manufacturing method described in claim 1 , wherein:
the volume mean particle diameter of the resin powder is 20 μm or less.
3. A sheet containing fibers, and a BPA-free polyester resin, the BPA-free polyester resin having a grindability index of 0.8 or less,
the fibers being bonded to each other through the BPA-free polyester resin.