Influence of Processing Conditions on Melt Blown Web Structure. Part III — Water Quench

Bresee, Randall R.; Qureshi, Uzair A.

doi:10.1177/1558925005os-1400404

Cited by 4 publications

(4 citation statements)

References 5 publications

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“…The web consisting of finer fibers usually had a better BWU. In the study of Bresee et al, − finer fibers were usually observed in the higher air jet velocity. The pores between finer fibers were evenly distributed in the fibrous web.…”

Section: Resultsmentioning

confidence: 86%

Influence of Processing Conditions on the Basis Weight Uniformity of Melt-Blown Fibrous Webs: Numerical and Experimental Study

Sun

Yang

Xin

et al. 2018

Ind. Eng. Chem. Res.

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Basis weight uniformity of melt-blown fibrous webs is attracting considerable interest because it directly affects the application performance of nonwovens. There are numerous studies which introduce factors of processing conditions on the basis weight uniformity based on their final applications. However, theoretical research is still scarce. This paper describes the numerical modeling (bead–viscoelastic element fibrous model) involving fibrous web structure generation and basis weight uniformity evaluation. The effects of four processing conditions, including velocity of air jet and suction, die-to-collector distance, and moving speed of collector, on the basis weight uniformity of the fibrous web were quantitatively analyzed. Additionally, computational fluid dynamics simulation was employed to study the air flow (including the suction) in the melt-blowing process. The simulated results were in good agreement with the experimental data. The numerical model was practical and could better be used to research the problems on fibrous web formation and structures.

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Section: Resultsmentioning

confidence: 86%

Influence of Processing Conditions on the Basis Weight Uniformity of Melt-Blown Fibrous Webs: Numerical and Experimental Study

Sun

Yang

Xin

et al. 2018

Ind. Eng. Chem. Res.

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“…The fiber orientation and basis weight of the entire web can be obtained by analyzing each image. This instrument was termed as “WebPro” and was extended to calculate additional structural parameters, including pore size, fiber diameter, and even shot formation. − Similarly, Wang developed an automatic system called “Beion” to capture the web structure. Beion could fuse the images shot at different field depths to form one image.…”

Section: Fiber Formation Mechanism Experimentsmentioning

confidence: 99%

“…The extension test is an indirect method of fiber orientation measurement, in which the ratio of strength MD /strength CD represents the fiber orientation. Another common method is the use of image analysis software, including WebPro and ImageJ. ,− , However, there were issues with the use of the ImageJ software in estimating the fiber orientation in the SEM images in Feng’s work . In the said work, a straight line parallel to the x -axis of the sample was drawn, and the angle formed between the fiber in the ordering direction and x -axis was measured.…”

Section: Fiber Formation Mechanism Experimentsmentioning

confidence: 99%

Overview of the Fiber Dynamics during Melt Blowing

Sun

Wan-jin

Wang

et al. 2022

Ind. Eng. Chem. Res.

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Melt blowing (MB) is an industrial process used in producing microfibrous nonwoven materials. Over the past decades, a considerable amount of theoretical and experimental research has been conducted on the mechanisms of fiber dynamics during MB. Although some studies have been summarized by recently published review articles, the evolution of the theoretical equations and improvements in the experiments are rarely mentioned. Therefore, this work presents a comprehensive overview of the research on fiber dynamics, especially on the evolution of its theories. For the theoretical aspect, the evolution of the fiber formation and the fibrous web formation models were analyzed. In addition, online and offline experiments were used to demonstrate fiber formation and fibrous web mechanisms. The fundamental studies reviewed in this paper contributed noteworthy findings in controlling the fiber and web quality, thereby improving the product behavior during MB.

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“…Shots are generally attributed to the breakage of the fibers as they are being drawn in the air stream [3,4,18,75,89,148,149,163,164,165]. Butin with Lohkamp (1973) suggested that shot is created from elastic "snap back" when fiber broke [165].…”

Section: Generation Of Small Isolated Spherical Particlesit Is Supposmentioning

confidence: 99%

Meltblown technology for production of polymeric microfibers/nanofibers: A review

Drábek

Zatloukal

2019

Physics of Fluids

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This work summarizes the current state of knowledge in area of meltblown technology for production of polymeric nonwovens with specific attention to utilized polymers, die design, production of nanofibers, the effect of process variables (such as throughput rate, melt rheology, melt temperature, die temperature, air temperature/velocity/pressure and die-to-collector distance and speed) with relation to nonwoven characteristics as well as to typical flow instabilities such as whipping, die drool, fiber breakup, melt spraying, flies, generation of small isolated spherical particles, shots, jam and generation of nonuniform fiber diameters.

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Influence of Processing Conditions on Melt Blown Web Structure. Part III — Water Quench

Cited by 4 publications

References 5 publications

Influence of Processing Conditions on the Basis Weight Uniformity of Melt-Blown Fibrous Webs: Numerical and Experimental Study

Influence of Processing Conditions on the Basis Weight Uniformity of Melt-Blown Fibrous Webs: Numerical and Experimental Study

Overview of the Fiber Dynamics during Melt Blowing

Meltblown technology for production of polymeric microfibers/nanofibers: A review

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