Influence of Inlay-Yarn Properties and Insertion Density on the Compression Properties of Knitted Orthopaedic Supports

• Autorzy: Ališauskienė D. , Mikučioniené D. , Milašiute L.

Warianty tytułu

PL

Wpływ właściwości przędzy wątku i gęstości wprowadzenia na właściwości ściskające dzianych wyrobów ortopedycznych

• Języki publikacji: EN

Abstrakty

EN

The aim of this study was to investigate the influence of inlay-yarn linear density and insertion density on the compression properties of knitted orthopaedic supports. Samples were made on a flat double needle-bed knitting machine with a laid-in structure knitted on a rib 1×1 pattern base, differing in the inlay-yarn linear density and their insertion density. It was established that for knitted samples with the same insertion density of inlay-yarn, values of pressure differ in the ranges of error if the linear density of the inlay-yarn differs even twice and less. In the area of low extensions (in our case – 10%), the linear pressure depends on the inlay-yarn’s PU core linear density, while the dependence of the elastic inlay-yarn’s insertion density on pressure values has an exponential character. However, the influence of inlay-yarn linear density on the compression of the knits investigated is not high. Moreover the raw material and linear density of covering yarns do not have any significant influence on pressure generated by the knit in the area of low extensions. When designing a knitted compressive support, it is necessary to find an optimal ratio between the elastic inlay-yarn’s linear density and insertion density, thereby achieving the best compressive, wear comfort and economical result.

PL

Badano wpływ masy liniowej i gęstości wprowadzenia na właściwości uciskowe wyrobów ortopedycznych. Badane próbki wykonano na płaskiej dwu-łożyskowej maszynie dziewiarskiej w splocie dwuprawym 1x1 przy zróżnicowanej gęstości liniowej i gęstości wprowadzenia w dzianinę. Sprawdzono w szczegółach wpływ masy liniowej zastosowanych przędz oraz gęstości wrobienia poszczególnych rodzajów nitek na właściwości uciskowe otrzymanych wyrobów. Opracowano zależności teoretyczne dla poszczególnych przypadków uzyskując stosunkowo dobrą korelację z wynikami praktycznymi. Uzyskane wyniki badań mogą stanowić użyteczną podstawę przy projektowaniu nowych wyrobów.

Słowa kluczowe

EN

orthopaedic supports; compressive knits; laid–in structure; inlay-yarn

PL

ortopedyczne wsporniki; uciskowe dzianiny; zawarte w strukturze; masa liniowa przędzy

• Wydawca: Sieć Badawcza Łukasiewicz - Łódzki Instytut Technologiczny
• Czasopismo: Fibres & Textiles in Eastern Europe
• Rocznik: 2013
• Tom: Vol. 21, no. 6 (102)
• Strony: 74--78
• Opis fizyczny: Bibliogr. 14 poz., rys., tab.

Twórcy

autor

Ališauskienė D.

• Department of Textile Technology, Faculty of Design and Technologies, Kaunas University of Technology, Kaunas, Lithuania

autor

Mikučioniené D.

• Department of Textile Technology, Faculty of Design and Technologies, Kaunas University of Technology, Kaunas, Lithuania

autor

Milašiute L.

• Department of Textile Technology, Faculty of Design and Technologies, Kaunas University of Technology, Kaunas, Lithuania

Bibliografia

• 1. Wang L, et al. Study of Properties of Medical Compression Fabrics. Journal of Fibre Bioengineering & Informatics 2011; 4, 1: 15 - 22.
• 2. Krimmel G. The construction and classification of compression garments. In: Template for Practice: Compression hosiery in upper body lymphoedema. HealthComm UK Ltd, 2009, pp. 2 - 5.
• 3. AL-Ansary MAR. Effect of Spandex Ratio on the Properties of Woven Fabrics Made of Cotton/Spandex Spun Yarns. Journal of American Science 2011; 7, 12: 63 - 67.
• 4. Abramavičiūtė J, et al. Structure Properties of Knits from Natural Yarns and their Combination with Elastane and Polyamide Threads. Materials Science (Medžiagotyra) 2011; 17, 1: 43 - 46.
• 5. Comandar C. Investigation of knitted fabric structure on its elasticity. In: 5th International Textile, Clothing & Design Conference – Magic World of Textiles Croatia. Dubrovnik, October 3 - 6, 2010: pp. 226 - 230.
• 6. Bruniaux P, et al. Modeling the mechanics of a medical compression stocking through its components behavior: Part 1 – modeling at the yarn scale. Textile Researh Journal 2012;82, 18: 1833 - 1845.
• 7. Maklewska E, Nawrocki A, Ledwoń J, Kowalski K. Modelling and Designing of Knitted Products Used in Compressive Therapy. Fibres & Textiles in Eastern Europe 2006;14, 5, 59: 111 - 113.
• 8. Sadek R, et al. Effect of Lycra Extension Percent on Single Jersey Knitted Fabric Properties. Journal of Engineered Fibres and Fabrics 2012; 7, 2: 11 - 16.
• 9. Tezel S, Kavusturan Y. Experimental investigation of effects of spandex brand and tightness factor on dimensional and physical properties of cotton/spandex single jersey fabrics. Textile Research Journal 2008; 78, 11: 966 - 976.
• 10. Herath CN, Choon B, Jeon Yong H. Dimensional Stability of Cotton – Spandex Interlock Structures under Relaxation. Fibres and Polymers 2007; 8, 1: 105 - 110.
• 11. Chathura NH, Bok CK. Dimensional characteristics of core spun cotton – spandex core spun cotton – spandex rib knitted fabrics in laundering. International Journal of Clothing Science and Technology 2007; 19, 1: 43 - 58.
• 12. Kowalski K, et al. Modelling and Designing Compression Garments with Unit Pressure Assumed for Body Circumferences of a Variable Curvature Radius. Fibres & Textiles in Eastern Europe 2012; 20, 6A, 95: 98 - 102.
• 13. Ališauskienė D, Mikučionienė D. Influence of the Rigid Element Area on the Compression Properties of Knitted Orthopaedic Supports. Fibres & Textiles in Eastern Europe 2012; 20, 6A, 95: 103 - 107.
• 14. Ozbayrak N, Kavusturan Y. The Effects of Inlay Yarn Amount and Yarn Count of Extensibility and Bursting Strength of Compression Stockings. Tekstil’ve Konfeksiyon 2009; 2: 102 - 107.