Fig. 7
From: Self-folding of thick paper via continuous solution supply analyzed by FTIR spectroscopy
Fabrication process and demonstration of fine self-folding structures using the filter-paper method. All samples were prepared by placing solution-saturated filter paper on both sides of the sheet and applying a 4 min Loading Penetration Phase. (a) Miura-ori: a fold pattern that enables repeated deployment and folding from a flat sheet; specimen size 80 mm × 120 mm. (b) Corrugated structure: a pattern with continuous periodic waves, giving the sheet flexibility and stretchability. (c) Size comparison of Miura-ori samples. A 210 × 297 mm specimen produced by the inkjet method (left) and an 80 × 120 mm specimen produced by the filter-paper method (right). The filter-paper method achieved self-folding even when the same crease pattern was scaled down. (d) An 80 × 120 mm specimen produced by the filter-paper method. Continuous crease formation and stable shape reproduction are visually confirmed even at this small size.
