Fig. 1.
Global rubbish distribution map [6]
Table 1.
Cotton stock fabric test sample specifications
| Parameter | Natural-color Stock Fabric | Black Stock Fabric |
|---|---|---|
| Composition (%) | Cotton 100 | Cotton 100 |
| Weave |  Woven |  Woven |
| Width (cm) | 162cm | 157cm |
| Weight (g/m2) | 120.8 | 136.1 |
| Category | Plain | Poplin |
| Warp (/10 in) | 281 | 482 |
| Weft (/10 in) | 252 | 210 |
| Sample |  |  |
| Sample size (mm) | 250 × 50 | 250 × 50 |
| SEM (100×) |  |  |
Fig. 2.
Natural-colored stock fabric samples after water immersion, showcasing the original sample and 12 subsequent samples at different time intervals
Fig. 3.
Black-colored stock fabric samples after water immersion, showcasing the original sample and 12 subsequent samples at different time intervals
Table 2.
Fracture appearance of cotton stock fabric after water immersion
| Time (day) | SEM (100×) | ||
|---|---|---|---|
 |  | ||
| Time | SEM (100×) | Time | SEM (100×) |
 |  |  |  |
 |  |  |  |
 |  |  |  |
 |  |  |  |
 |  |  |  |
 |  |  |  |
Fig. 4.
Warp-breaking strength curve of natural-color stock fabric as a function of the water immersion time, along with the fitted polynomial
Table 3.
Variation equation of the warp-breaking strength of natural-color stock fabric with the water immersion time.
| Item | Value |
|---|---|
| Equation | y = Intercept + B1*x^1 + B2*x^2 + B3*x^3 |
| Intercept | 416.81931 ±2.30958 |
| B1 | -2.98305 ± 0.57912 |
| B2 | 0.12271 ± 0.03832 |
| B3 | -0.00303 ± 6.9863E-4 |
| R Squared (COD) | 0.99213 |
Fig. 5.
Warp strength loss rate curve of natural-color stock fabric as a function of the water immersion time, along with the fitted polynomial
Table 4.
Variation equation of the warp strength loss rate of natural-color stock fabric with the water immersion time
| Item | Value |
|---|---|
| Equation | y = a + b*x^c |
| a | 2.82614 ± 0.69975 |
| b | 0.01178 ± 0.01136 |
| c | 2.0436 ± 0.26749 |
| R Squared (COD) | 0.97772 |
Fig. 6.
Weft-breaking strength curve of natural-color stock fabric as a function of the water immersion time, along with the fitted polynomial
Table 5.
Variation equation of the weft-breaking strength of natural-color stock fabric with the water immersion time
| Item | Value |
|---|---|
| Equation | y = Intercept + B1*x^1 + B2*x^2 + B3*x^3 |
| Intercept | 361.06445 ± 5.59434 |
| B1 | -13.77009 ± 1.40277 |
| B2 | 0.41888 ± 0.09282 |
| B3 | -0.00453 ± 0.00169 |
| R Squared (COD) | 0.98841 |
Fig. 7.
Weft strength loss rate curve of natural-color stock fabric as a function of the water immersion time, along with the fitted polynomial
Table 6.
Variation equation of theweft strength loss rate of natural-color stock fabric with the water immersion time
| Item | Value |
|---|---|
| Equation | y = a + b*x^c |
| a | -4761.23452 ± 240347.01947 |
| b | 4751.43356 ± 240340.24304 |
| c | 0.00329 ± 0.16514 |
| R Squared (COD) | 0.9671 |
Fig. 8.
Warp-breaking strength curve of black stock fabric as a function of the water immersion time, along with the fitted polynomial.
Table 7.
Variation equation of the warp-breaking strength of black stock fabric with the water immersion time
| Item | Value |
|---|---|
| Equation | y = Intercept + B1*x^1 + B2*x^2 + B3*x^3 |
| Intercept | 554.12959 ± 3.86116 |
| B1 | 0.34807 ± 0.96818 |
| B2 | -0.15123 ± 0.06406 |
| B3 | 9.20422E-4± 0.00117 |
| R Squared (COD) | 0.99342 |
Fig. 9.
Warp strength loss rate curve of black stock fabric as a function of the water immersion time, along with the fitted polynomial
Table 8.
Variation equation of the warp strength loss rate of black stock fabric with the water immersion time
| Item | Value |
|---|---|
| Equation | y = a + b*x^c |
| a | 1.13831 ± 0.77734 |
| b | 0.02858 ± 0.02007 |
| c | 1.88035 ± 0.19398 |
| R Squared (COD) | 0.9867 |
Fig. 10.
Weft-breaking strength curve of black stock fabric as a function of the water immersion time, along with the fitted polynomial
Table 9.
Variation equation of the weft-breaking strength of black stock fabric with the water immersion time
| Item | Value |
|---|---|
| Equation | y = Intercept + B1*x^1 + B2*x^2 + B3*x^3 |
| Intercept | 237.00269 ± 1.84906 |
| B1 | -1.08479 ± 0.46365 |
| B2 | -0.12965 ± 0.03068 |
| B3 | 0.00224 ± 5.59328E-4 |
| R Squared (COD) | 0.99728 |
Fig. 11.
Weft strength loss rate curve of black stock fabric as a function of the water immersion time, along with the fitted polynomial
Table 10.
Variation equation of the weft strength loss rate of black stock fabric with the water immersion time
| Item | Value |
|---|---|
| Equation | y = a + b*x^c |
| a | -1.30967 ± 1.99386 |
| b | 1.02445 ± 0.4266 |
| c | 1.06488 ± 0.10863 |
| R Squared (COD) | 0.9921 |
Table 11.
Quick reference table of strength loss rate node parameters for cotton stock fabric after water immersion
| Item | Loss rate | Natural color stock fabric (Time/D) | Black color stock fabric (Time/D) | ||
|---|---|---|---|---|---|
| After water immersion | After water immersion | ||||
| Warp | Weft | Warp | Weft | ||
| Time /D | 5% | 13 | 3 | 14 | 6 |
| 10% | 23 | 4 | 21 | 10 | |
| 15% | 30 | 5 | 27 | 13 | |
| 20% | 35 | 7 | 32 | 17 | |
| 25% | 40 | 9 | 36 | 21 | |
| 30% | 44 | 13 | 40 | 25 | |
| 35% | 48 | 17 | 43 | 29 | |
| 40% | 52 | 24 | 46 | 32 | |
| 45% | 55 | 33 | 50 | 36 | |
| 50% | 58 | 45 | 52 | 40 | |
