Table 2. Comparison of transparent paper prepared using various methods.

	Diameter	Thickness	Density	Fiber width	Pore size of filter	Preparation time for fibers	Filtration time	T550	Refs
	(mm)	(μm)	(g/cm3)	(nm)	(μm)	(min)	(min)	(%)
Transparent Paper	200	60	0.5–1.3	19.3 (μm)	38	20 (16 + 4)a	10	91.55	This work
Nanopaper	72–200	40–60	0.85–8.73	5–20	0.65	>90b	∼45c	49.7d	15
Transparent Paper	200	50	1.14	26 (μm)	0.65	490	∼60	96	4
Nanopaper	200	—	1.03	5–30	0.65	>490	∼480	90–96	4
Nanopaper	—	60	1.53	15–20	0.1	>2520	180–240	71.6d	27
NFC Film	130	120	1.25	5–20	10	—	∼30	—	28

^aThe RCFs took 16 min to dissolve and 4 min to debond.

^bThe cellulose nanofibers took 60 min to undergo enzymatic treatment and 30 min to incubate. The time for homogenization is unknown.

^cThe time for filtrating a 0.2 wt% suspension used to fabricate a 60 μm thick nanopaper with a density of 0.85 g/cm³.

^dPercent transmission at 600 nm wavelength.