Improving the Color Stability of Naturally Colored Silk by Cross-Linking the Sericin with Phytic Acid

Figure 4

SEM observation of uncross-linked and cross-linked NCS filament before and after degumming ((a) and (b): uncross-linked fiber before and after degumming; (c) and (d): cross-linked fiber before and after degumming).

(a)

(b)

(c)

(d)