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Odporność włókienniczych wyrobów medycznych na przenikanie bakterii na mokro

Kiwała M.

Przegląd Włókienniczy - Włókno, Odzież, Skóra

2010

nr 9

40-43

Textiles used in hospital applications, especially those applied in clean rooms, eg. surgical gowns and drapes are medical products forming a barrier to infections. Barrier textiles should protect against the penetration and soaking through harmful, pathogenic agents. The risk of infection depends on: barrier efficiency of drapes for an operative field, duration of given surgical procedure and the humidity/ moisture of the operative field. General recommendations, test methods and requirements of the properties of textiles for hospital applications are described in a three-part standard PN-EN 13795. The need to assess textiles conformity with the requirements of this standard involved the usage of test methods of determining the resistance to wet bacterial penetration according to the standard PN-EN ISO 22610. This method is based on joined action of friction, liquid penetration and micro-organisms migration. Bacteria can penetrate from donor material through test specimen down to agar surface. Several tests were performed for polyester woven fabric and reference material according to the method of the above mentioned standard and using the apparatud RULLA II (Schütt Labortechnik GmbH). The barrier index of tested woven fabrics reached 2.8 which is close to the critical value of the resistance to wet bacterial penetration. These tests allow to state that tested woven fabrics did not conform to the high requirements obliging the areas of high probability of infectious agents transfer. Moderate penetration qualifies these woven fabrics for textiles applied in areas where standard performance of textiles is required - for critical and less critical product areas as well. The implementation of the test method conforming to the standard PN-EN ISO 22610 allows for the quality and applicability assessment of textile products for hospital applications because only textiles meeting the requirements of the standard PN-EN ISO 13795 can be applied as drapes and gowns.

Polymer Microspheres as Carriers of Antibacterial Properties of Textiles : A Preliminary Study

Goetzendorf-Grabowska B., Królikowska H., Gadzinowski M.

Fibres & Textiles in Eastern Europe

2004

Vol. 12, no. 4 (48)

62--64

A significant part of medical, fibre-based materials are antibacterial textile fabrics which can be obtained by various advanced technologies. The application of new nano-technologies offers the possibilities of producing and implementing such products. In this work we present some preliminary tests concerning the irreversible immobilisation of poly(L,L-lactide) microspheres loaded with Triclosan onto viscose nonwoven structures. In the available publications concerning encapsulation techniques, there is no information on trials pertaining to the production of microspheres from poly(L,L-lactide) with Triclosan. The experiments described in this paper were divided into two parts: the synthesis of microspheres with Triclosan (carried out at the Polish Academy of Sciences, Łódź), and the attachment of microspheres to a textile fabric structure (carried out at the Textile Research Institute, Łódź). The results were quantified and the microbiological efficiency of the modified fabrics was examined.

Wśród włókienniczych wyrobów medycznych znaczącą grupę stanowią tekstylia o właściwościach antybakteryjnych, uzyskiwanych przez stosowanie różnych technologii. Zastosowanie nowych technik, związanych z wykorzystaniem nanotechnologii, stwarza nowe możliwości dla produkcji i zastosowania tych wyrobów. W poniższej publikacji przedstawiono wyniki wstępnych prac, których celem było sprawdzenie możliwości trwalej inkorporacji mikrosfer, zawierających triclosan, do struktury włókniny wiskozowej stanowiącej podłoże włókiennicze. Badania wykonano w Instytucie Włókiennictwa przy współpracy Centrum Badań Molekularnych PAN w Łodzi w zakresie przygotowania mikrosfer. Uzyskane wyniki oceniono ilościowo i na podstawie badań skuteczności mikrobiologicznej.