Devices for On-Line Assessment of Nonwovens' Basis Weights and Structures
| Autor: | Hawthorne Davis, R. Veerabadran, A.C. Bullerwell, Subhash K. Batra |
|---|---|
| Rok vydání: | 1996 |
| Předmět: |
010302 applied physics
Materials science Polymers and Plastics Basis (linear algebra) Orientation (computer vision) Acoustics Attenuation 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Light scattering Distribution function 0103 physical sciences Line (geometry) Chemical Engineering (miscellaneous) Light beam Composite material 0210 nano-technology Anisotropy |
| Zdroj: | Textile Research Journal. 66:257-264 |
| ISSN: | 1746-7748 0040-5175 |
| DOI: | 10.1177/004051759606600412 |
| Popis: | Two devices for quantifying the basis weight and fiber orientation distribution func tion in nonwoven webs have been developed and studied. The basis weight device measures the attenuation of a light beam by the fabric. The particular device is im plemented, calibrated, and tested at speeds up to 400 m/min. By statistical analysis, this device is accurate enough to use with fabrics that are three or more times less variable than current commercial nonwovens. The device for quantifying web structure measures the orientation distribution function of a static sample by light scattering, and it is sensitive enough to detect subtle differences in spunbonded webs produced with different filament-dispersing hardware. An anisotropy ratio calculated from mea sured orientation distribution functions correlates well with fabric tensile properties. |
| Databáze: | OpenAIRE |
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