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Table 3 Thickness of the coating layer or the fiber layer

From: Applying micro-computed tomography (micro-CT) and Raman spectroscopy for non-invasive characterization of coating and coating pigments on ancient Chinese papers

Lab. no.

Paper name

The thickness of the observed layers (Mean ± SD, μm)

Coating layer (n = 10)

Fiber layer (n = 15)

QP

Lajian

17.3 ± 6.5

117.3 ± 8.0

QY

Lajian

19.3 ± 4.9

77.6 ± 8.3

QR

Lengjinjian

13.8 ± 4.3

101.3 ± 8.0

ENA#1

Raw xuan

0

156.5 ± 29.1

ENA#2

Bamboo paper

0

118.5 ± 19.1