Fiber Crimp Distribution in Nonwoven Structure
نویسندگان
چکیده
The crimp of the text ile fibers is very crit ical to determine its properties and volumin isity. The microscopic characteristic of the nonwoven fabric is totally depends on the linearity and length of the crimp and the amplitude of the crimp. In this review paper we have discussed about the crimp calculat ion, measurement techniques and the standards used for the text ile nonwoven substrates. The crimp frequency (orientation distribution function; ODF) which is being measured by Textechno FAVIMAT instrument and by modern image processing techniques is also been discussed here.
منابع مشابه
The Influence of Fiber Crimp on Acoustic Performance of Polypropylene Fibrous Batt
This paper reports on the effect of fiber crimp frequency on sound absorption capability of staple polypropylene nonwoven batts. Stuffer box was used to impart crimp to spun tow. Crimping of the tow renders the fibers the required textile applicability. In this work, polypropylene batts composed of staple fibers with linear densities of 9, 14, and 18 denier were employed. Three crimp frequency ...
متن کاملEffect of Fiber Crimp on the Elasticity of Random Fiber Networks With and Without Embedding Matrices.
Fiber networks are assemblies of one-dimensional elements representative of materials with fibrous microstructures such as collagen networks and synthetic nonwovens. The mechanics of random fiber networks has been the focus of numerous studies. However, fiber crimp has been explicitly represented only in few cases. In the present work, the mechanics of cross-linked networks with crimped atherma...
متن کاملElastic Strain of PTT/PET Self-Crimping Fibers
This paper studies the relationship between crimp curvatures and elastic strains of two series of PTT (Polytrimethylene terephthalate)/ PET (Polyethylene terephthalate) self-crimping fibers produced with two different spinnerets which merge PTT and PET fluids at different points. The crimp curvature is estimated based on fiber crosssectional parameters and the polymer properties. The elastic st...
متن کاملCollagen Fiber Re-Alignment and Uncrimping in Response to Loading: Determining Structure-Function Relationships Using a Developmental Tendon Mouse Model
Collagen fiber re-alignment and uncrimping are postulated mechanisms of structural response to load. It has been suggested that fibers re-orient in the direction of load and then "uncrimp" before collagen is tensioned and that in general, the structure is a result of the function tendons perform. However, little is known about how fiber re-alignment and uncrimping change in response to load, ho...
متن کاملEvaluating changes in tendon crimp with fatigue loading as an ex vivo structural assessment of tendon damage.
The complex structure of tendons relates to their mechanical properties. Previous research has associated the waviness of collagen fibers (crimp) during quasi-static tensile loading to tensile mechanical properties, but less is known about the role of fatigue loading on crimp properties. In this study (IACUC approved), mouse patellar tendons were fatigue loaded while an integrated plane polaris...
متن کامل