Barrier effect of woven fabrics used for surgical gowns

• Autorzy: Aibibu D. , Lehmann B. , Offermann P.
• Języki publikacji: EN

Abstrakty

EN

Surgical gowns must have a barrier effect between the sources of infection and the user (i.e. a healthy person), as well as good wearing comfort. They are often made of woven polyester fabrics. Different fabric constructions are available for this purpose; these are evaluated with reference to their barrier properties. We present an optical method of obtaining cross-section figures of woven fabrics. The fabric is cut in warp and weft directions, and embedded perpendicularly in a cylindrical sample carrier using an epoxy resin. After the manufactured samples have hardened, they are smoothened and polished. Subsequently, images of the cross-sections of the fabrics are obtained by using an optical microscope linked to a digital camera and a computer. The images show the microstructure of the woven fabrics, i.e. the size and distribution of the pores in the filament yarn, and between the filament yarns with respect to the fabric weave and yarn density. The porosity is determined by image analysis methods using ImageC ® by Aquinto. The distributions of the width of the pores and of the pore areas are calculated. Pore channels are shown. The results of structural barrier effect are compared with the results of penetration tests. Synthetic blood or particle-loaded liquids containing microspheres comparable with the sizes of bacteria are used. The time necessary to soak the fabric with liquids or the contamination on the back of the fabric is determined.

Słowa kluczowe

EN

structural barrier effect; surgical woven fabrics; pores in woven fabrics; images analysis methods; penetration test

PL

tkaniny chirurgiczne; pory; metody analizy obrazu; testy penetracyjne

• Wydawca: Lodz University of Technology, Faculty of Material Technologies and Textile Design
• Czasopismo: Autex Research Journal
• Rocznik: 2003
• Tom: Vol. 3, no. 4
• Strony: 186--193
• Opis fizyczny: Bibliogr. 7 poz.

Twórcy

autor

Aibibu D.

• Dresden University of Technology, Institute of Textile and Clothing Technology, D-01062 Dresden, Germany, phone:[phone], fax:[phone]

autor

Lehmann B.

• Dresden University of Technology, Institute of Textile and Clothing Technology, D-01062 Dresden, Germany, phone:[phone], fax:[phone]

autor

Offermann P.

• Dresden University of Technology, Institute of Textile and Clothing Technology, D-01062 Dresden, Germany, phone:[phone], fax:[phone]

Bibliografia

• 1. Mägel, M.; Aibibu, D.: Evaluation and Testing of Optical Test Methods for the Geometric Analysis of the Pore Spaces of Operating Room and Hospital Textiles. - 4th International Conf. TEXSCI 2000. - Liberec, June 2000. - In: conference papers p. 151-153
• 2. Offermann, P.; Aibibu, D.; Mägel, M.: Evaluation and Testing of Optical Test Methods for the Geometric Analysis of the Pore Spaces of Operating Room and Hospital Textiles. - FiberMed 2000. - Tampere, June 2000. - In: conference papers p. 123-134
• 3. Mägel, M.; Aibibu, D.: Mikrostrukturuntersuchungen an OP-Textilien. - 5. Dresdner Textiltagung. - Dresden, June 2000. - In: conference papers p. 114-115
• 4. Aibibu, D.; Lehman, B.; Offermann, P.: Optische Untersuchungsmethoden zur Bewertung der Barrierewirkung von OP-Textilien. - 6. Dresdner Textiltagung. - Dresden, June 2002. - In: conference papers p. 138-139
• 5. Aibibu, D.; Lehman, B.; Offermann, P.: Optische Untersuchungsmethoden zur Bewertung der Barrierewirkung von OP-Textilien/Optical test methods for the evaluation of the barrier effect of Operating Room and Hospital Textiles. – Melliand Textilberichte 84(2003)3 – Melliand Textilberichte 48(2003)3 – in print
• 6. Aibibu, D.; Lehman, B.; Offermann, P.: Image analysis for testing and evaluation of the barrier effect of surgical gowns. – 2nd European Conference on Protective Clothing (ECPC). – Montreaux, May 2003 – in print
• 7. Walz, Fr.; Luibrand, J.: Die Gewebedichte, Teil I und Teil II. – Textil-Praxis 2(1947)11-12, p. 330-335, p. 366-370