A framework for determining the bonding intensity in hydroentangled nonwoven fabrics

Mao, Ningtao; Russell, Stephen J.

doi:10.1016/j.compscitech.2005.05.030

Cited by 47 publications

(31 citation statements)

References 15 publications

(18 reference statements)

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“…The flexural rigidity of fiber had a high impact on fiber entanglement during nonwoven fabrication. Mao et al reported that increasing the flexural rigidity of fiber leads to the decrease of fiber entanglement during the hydroentanglement process [29]. To calculate and compare the flexural rigidity of pulp fiber and Danufil fiber, the relative flexural rigidity is defined as follows [30]:R fr = (1/4π) × η f × (E/γ) ×10 −5 , where R fr is the fiber relative flexural rigidity of fiber material with the same linear density (cN cm 2 tex −2 ), η f represents the cross-section shape coefficient, which is the actual sectional moment of inertia divided by the equivalent circular sectional moment of inertia with the same area, E is the fiber elastic modulus (cN tex −1 ), and γ is the fiber density (g cm −3 ).…”

Section: Resultsmentioning

confidence: 99%

Tensile Strength and Dispersibility of Pulp/Danufil Wet-Laid Hydroentangled Nonwovens

et al. 2019

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Wet-laid hydroentangled nonwovens are widely used for disposable products, but these products generally do not have good dispersibility and can block sewage systems after being discarded into toilets. In this study, both pulp fibers and Danufil fibers are selected as we hypothesize that the high wet strength and striated surface of Danufil fibers would allow us to produce nonwovens with better dispersibility while having enough mechanical properties. The wet strength and dispersibility of nonwovens are systematically studied by investigating the influence of the fiber blend ratio, fiber length, and water jet pressure. The results indicate that the percent dispersion could be as high as 81.3% when the wet strength is higher than 4.8 N, which has been improved greatly comparing the percent dispersion of 67.6% reported before.

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Section: Resultsmentioning

confidence: 99%

Tensile Strength and Dispersibility of Pulp/Danufil Wet-Laid Hydroentangled Nonwovens

et al. 2019

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“…The basis weights shown in Table 1 are averages of measured values. 4 . Since all the water that didn't pass through the holes is reflected back, the mass flow rate of the reflected water is…”

Section: Perfojet ® Sleevementioning

confidence: 99%

Modeling of the Hydroentanglement Process

Xiang

Кузнецов

Seyam

2006

Journal of Engineered Fibers and Fabrics

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Mechanical performance of hydroentangled nonwovens is determined by the degree of the fiber entanglement, which depends on parameters of the fibers, fiberweb, forming surface, water jet and the process speed. This paper develops a computational fluid dynamics model of the hydroentanglement process. Extensive comparison with experimental data showed that the degree of fiber entanglement is linearly related to flow vorticity in the fiberweb, which is induced by impinging water jets. The fiberweb is modeled as a porous material of uniform porosity and the actual geometry of forming wires is accounted for in the model. Simulation results are compared with experimental data for a Perfojet ® sleeve and four woven forming surfaces. Additionally, the model is used to predict the effect of fiberweb thickness on the degree of fiber entanglement for different forming surfaces.

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“…Historically, the ODF is measured only in two dimensions. It has been argued that the planar two-dimensional (2D) ODF can reasonably describe the behavior of a nonwoven (Pourdeyhimi et al, 1996 a , 1996 b ; Xu & Yu, 1997; Chhabra, 2003; Mao & Russell, 2006; Xiang et al, 2006). While this holds true for planar structures such as lightweight structured that are thermally bonded, it may not hold completely true for heavier structures and those that are subjected to needlepunching and/or hydroentangling.…”

Section: Introductionmentioning

confidence: 99%

Three-Dimensional Structural Characterization of Nonwoven Fabrics

et al. 2012

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Nonwoven materials are found in a gamut of critical applications. This is partly due to the fact that these structures can be produced at high speed and engineered to deliver unique functionality at low cost. The behavior of these materials is highly dependent on alignment of fibers within the structure. The ability to characterize and also to control the structure is important, but very challenging due to the complex nature of the structures. Thus, to date, focus has been placed mainly on two-dimensional analysis techniques for describing the behavior of nonwovens. This article demonstrates the utility of three-dimensional (3D) digital volumetric imaging technique for visualizing and characterizing a complex 3D class of nonwoven structures produced by hydroentanglement.

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A framework for determining the bonding intensity in hydroentangled nonwoven fabrics

Cited by 47 publications

References 15 publications

Tensile Strength and Dispersibility of Pulp/Danufil Wet-Laid Hydroentangled Nonwovens

Tensile Strength and Dispersibility of Pulp/Danufil Wet-Laid Hydroentangled Nonwovens

Modeling of the Hydroentanglement Process

Three-Dimensional Structural Characterization of Nonwoven Fabrics

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