Park and Kim Fash Text (2018) 5:26
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Warp Weft
Denim fabric
Fig. 5 Dimensional change in washing and drying of Hanji denim fabrics
Table 2 Specific gravity, colorfastness, and elastic recovery rate of Hanji denim fabrics Sample code (denim fabric) Weight (g/ m 2 ) Thickness (mm) Specific gravity Colorfastness to washing (grade) Color- fastness to light (grade) Elastic recovery rate (%)
Color change
Staining
Warp Weft
DF1 (C8) DF2 (C8) DF3 (C8) DF4 (C8) DF1 (C10) DF2 (C10) DF3 (C10) DF4 (C10)
375 349 385 367 361 320 358 361 380 352
0.74 0.69 0.76 0.78 0.67 0.63 0.68 0.68 0.67 0.61
0.507 0.506 0.507 0.471 0.539 0.508 0.526 0.531 0.567 0.577
4–5 4–5 4–5 4–5 4–5 4–5 4–5 4–5 4–5 4–5
4–5 4–5 4–5 4–5 4–5 4–5 4–5 4–5
Above 4 Above 4 Above 4 Above 4
54 77 56 75 52 78 69 75 38 41 44 56 52 71 54 70 50 70 67 79
3–4 3–4 3–4
3
S1 S2
4
Above 4 Above 4
4–5
dyes gradually disappear in the course of repeated washing and dehydration, we believe that the denim fabric using the natural dyestuff as the warp is able to commercialize sufficiently. For the elastic recovery rate of Hanji denim fabrics developed in the study, we com- pared the result with that of existing stretch denim fabrics (S1, S2). Basically, the stand- ard denim fabrics are made of unbleached cotton yarn, so there is no elasticity and many wrinkles. Recently, denim fabrics have been given elasticity according to consumers’ needs. The existing denim fabrics, which were compared with the Hanji denim fabric
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