Influence of the Physical and Chemical Properties of Composite Insoles on the Microclimate in Protective Footwear

• Autorzy: Irzmańska E. , Brochocka A.

Warianty tytułu

PL

Wpływ właściwości fizykochemicznych kompozytowych wkładek do obuwia ochronnego na poprawę mikroklimatu

• Języki publikacji: EN

Abstrakty

EN

The objective of the paper was to evaluate the influence of the physical and chemical properties of composite insoles on the microclimate in protective footwear under conditions of hard physical work. The study used the sorption kinetics of composite insoles using artificial sweat with acidic and alkaline pH, the porosity of the composite structure, and measurement of the microclimate inside the footwear in a test involving human subjects under laboratory conditions on a treadmill. The results revealed that sorption kinetics largely depend on sweat pH – sorption is slower at alkaline pH (less effective moisture transport across the insole) than at acidic pH (more effective moisture transport). Strong correlations were found between the sorption parameters of the composite insole at alkaline pH and the porosity parameters of its structure. The microclimate measurements showed optimum temperature and humidity levels inside the footwear, which remained within the thresholds of comfort of use defined in the literature. It was found that composite insoles containing a polycarbonate melt-blown nonwoven may be recommended in particular for non-permeable protective footwear in conditions of very intensive physical work, which is accompanied by a shift in pH from acidic to alkaline.

PL

Celem prezentowanych badań była analiza zdolności sorpcyjnych, zaprojektowanych innowacyjnych wkładek do obuwia ochronnego, w całości wykonanych z gumy w aspekcie porowatej budowy wyrobu włókienniczego. Zakres prac uwzględniał badania fizyko – chemiczne wkładek w zakresie kinetyki sorpcji potu o różnym pH (kwaśnym i zasadowym) i parametrów porowatości oraz badania użytkowe w zakresie pomiaru mikroklimatu w szczelnym obuwiu ochronnym. W badaniach użytkowych wkładki kompozytowe porównywano z wkładkami komercyjnymi powszechnie stosowanymi w obuwiu ochronnym. Na podstawie badan stwierdzono, że wkładki kompozytowe zbudowane w warstwie środkowej z włókniny melt-blown z włókien poliwęglanowych zapewniają bardzo dobrą sorpcję potu o pH zasadowym, typowego dla warunków intensywnego wysiłku w szczelnym obuwiu ochronnym.

Słowa kluczowe

EN

insoles; protective footwear; sweat sorption; sweat pH; porosity; footwear microclimate; comfort of use

PL

wkładki do obuwia ochronnego; wkładki kompozytowe; mikroklimat w obuwiu ochronnym; właściwości fizykochemiczne wkładek

• Wydawca: Sieć Badawcza Łukasiewicz - Łódzki Instytut Technologiczny
• Czasopismo: Fibres & Textiles in Eastern Europe
• Rocznik: 2014
• Tom: Vol. 22, no. 5 (107)
• Strony: 89--95
• Opis fizyczny: Bibliogr. 30 poz., rys., tab.

Twórcy

autor

Irzmańska E.

• Poland, Łódź, Central Institute for Labour Protection - National Research Institute

autor

Brochocka A.

• Poland, Łódź, Central Institute for Labour Protection - National Research Institute

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