Spunlaced Cotton and Cotton Blend Cosmetic Pads and Bed Sheets: Study of Fiber Entanglement

Parikh, D. V.; Randall, R. Bresee; Muenstermann, U.; Watzl, Alfred; Crook, Legrand; Gillespie, Don

doi:10.1177/155892500700200304

Cited by 5 publications

(5 citation statements)

References 7 publications

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“…The integrity of the hydroentangled fabric structure is attributed to inter-fiber friction of tight cohesive groupings of fiber bundles. 6,7 Therefore, the micromechanics of hydroentangled nonwoven fabrics would be expected to be different. The uses of hydroentangled fabric are extensive because it resembles a woven fabric.…”

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confidence: 99%

Micromechanics of hydroentangled nonwoven fabrics

Moyo

Anandjiwala

Patnaik

2016

Textile Research Journal

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The mechanics of nonwoven fabrics is largely dependent on fiber properties, and other physical factors such as structural arrangement and degree of entanglement of the fibers. In this study, modeled and experimental stress–strain behaviors of uniaxially loaded hydroentangled nonwoven fabrics have been analyzed and compared. The theoretical values from the model were deduced from the measured properties of micro-samples, namely, fiber volume faction, orientation distribution and mechanical properties. Testing of the micro-samples was performed on a Deben Microtest Module fitted in the FEI Quanta 200 Scanning Electron Microscope. The experimental stress–strain results show that the structure is in the linear region when the modeled results approach the highest specific stress. Also, the theoretical models highly overestimate the specific stress of the hydroentangled nonwoven fabrics. The results show that the application of the model was limited in predicting tensile stress. Furthermore, a trapezoid method was used to quantify the actual deformation energy from the stress–strain graphs up to the ultimate tensile strength. The theoretical deformation energy was estimated and compared to the experimental values. The model was subsequently modified to improve its predictive capability.

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confidence: 99%

Micromechanics of hydroentangled nonwoven fabrics

Moyo

Anandjiwala

Patnaik

2016

Textile Research Journal

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“…Evidence for this is shown in Figure 2(a), where an increase in waterjet pressure was expected to increase the tensile strength of the fabric accordingly, but it did not. 4,10,[19][20][21] The fabric tensile strength was lower at waterjet pressure of 150 bars (0 level) and 200 bars (+1 level) compared to that at 100 bars (À1 level). This implies that the fibers were entangled reasonably well at a medium level of hydroentangling energy.…”

Section: Resultsmentioning

confidence: 99%

Optimization of energy usage in the hydroentanglement process

Moyo

Patnaik

Anandjiwala

2014

Textile Research Journal

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The hydroentanglement process is highly energy intensive compared to other methods of manufacturing nonwoven fabrics. This paper presents an exploratory study on optimizing the usage of hydroentanglement energy so as to lower the processing cost. The experiments were based on a Box-Behnken experimental design (BBD) and multivariate linear regression analysis to model the tensile strength as response to variables. Three variables were selected, namely fabric area weight (150-400 g/m 2 ), machine speed (5-15 m/min) and waterjet pressure (40-200 bars). These parameters were employed in two sets of experiments to achieve maximum tensile strength of viscose nonwoven fabrics. The first experiment was conducted using higher waterjet pressures of 100, 150 and 200 bars, which were proved to have exceeded the optimum levels. The second experiment was conducted at relatively lower waterjet pressures of 40, 60 and 80 bars. The results on tensile strength were analyzed using the SYSTAT 10 software package and response surface plots were prepared. The linear, quadratic and interactive effects of the main variables were shown to be significant. Interactions amongst the variables were found to have either a synergistic (positive) or offsetting (negative) relationship with the fabric tensile strength. The interactions involving machine speed were predominantly offsetting. The 400 g/m 2 area weight fabric produced at 80 bars of waterjet pressure achieved a fabric tensile strength of 222 cN, which compared favorably with that of 232 cN obtained at 200 bars of waterjet pressure. In this exploratory study using BBD, linear, quadratic and interactive effects were observed to be significant and the usage of hydroentanglement energy was successfully optimized. This indicates the possibility of achieving high fabric strength but at lower waterjet pressures; in other words, by employing low hydroentanglement energy and thereby minimizing the processing cost.

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“…Blends produced quality products, which cotton alone could not, and the blending improved the processability and uniformity of the webs. 13,14 With the recent installment of 1 m wide needle punch and hydroentanglement pilot plant lines, scientists at the SRRC-USDA are embarking on new initiatives to study the cotton's sustainability features in the context of nonwoven applications.…”

Section: Cotton and Flax-based Nonwovensmentioning

confidence: 99%