Immunization Effect of Sodium Aluminate on Wool

• Autorzy: Sirvaityte J. , Beleska K. , Alaburdaite R. , Komiciute I. , Valeika V.

Identyfikatory

DOI

10.5604/01.3001.0010.4626

Warianty tytułu

PL

Immunizacja wełny metaglinianem sodu

• Języki publikacji: EN

Abstrakty

EN

Since the environmental requirements for leather manufacture as well as for other industry branches are becoming stricter, investigations of unhairing have been directed towards conditions of the process which allow the saving of hair: enzymatic unhairing or unhairing with hair immunization conventionally achieved by using lime and sodium sulphide. The problem is that lime forms a big quantity of liquid waste which contains lime sludge polluted by sulphides and protein degradation products. The research is devoted to the replacement of Ca(OH)₂ as hair immunization material with some other soluble non-hazardous material with a similar immunization effect. The preliminary tests showed that alkaline sodium aluminate suits this purpose very well. Its immunisation efficiency increases with prolonged treatment duration and increased concentration of the treatment solution. Treatment with 20 g/l of sodium silicate solution for 3 h allows to reach a high immunization ability almost the same as that of calcium hydroxide under the same conditions. The immunisation effect lasts when the pH is approx. 13.

PL

Ponieważ normy dotyczące ochrony środowiska w przemyśle skórzanym, jak również w innych gałęziach przemysłu stają się coraz bardziej restrykcyjne, badano immunizację wełny wodorotlenkami wapnia i potasu oraz metaglinianem sodu, badając poziom degradacji wełny po obróbce. Efekt immunizacji został oszacowany na podstawie zmian utraty masy wełny i zawartości azotu w roztworze. Potwierdzono, że metaglinian sodu jest skutecznym środkiem immunizującym. Skuteczność immunizacji metaglinianem sodu zwiększa się wraz z wydłużeniem czasu obróbki i zwiększeniem stężenia roztworu.

Słowa kluczowe

EN

immunization; wool; keratin; sodium aluminate; sodium sulphide

PL

immunizacja; wełna; keratyna; metaglinian sodu; siarczek sodu

• Wydawca: Sieć Badawcza Łukasiewicz - Łódzki Instytut Technologiczny
• Czasopismo: Fibres & Textiles in Eastern Europe
• Rocznik: 2017
• Tom: Vol. 25, no. 5 (125)
• Strony: 42--46
• Opis fizyczny: Bibliogr. 25 poz., rys., tab.

Twórcy

autor

Sirvaityte J.

• JSC Plungės kooperatinė prekyba “Viciunai group”, Birutes str. 50, Plunge LT-90112, Lithuania

autor

Beleska K.

• Kaunas University of Technology, Department of Polymer Chemistry and Technology, Radvilėnų pl. 19, Kaunas LT-50254, Lithuania

autor

Alaburdaite R.

• Kaunas University of Technology, Department of Physical and Inorganic Chemistry, Radvilėnų pl. 19, Kaunas LT-50254, Lithuania

autor

Komiciute I.

• Kaunas University of Technology, Department of Polymer Chemistry and Technology, Radvilėnų pl. 19, Kaunas LT-50254, Lithuania

autor

Valeika V.

• Kaunas University of Technology, Department of Physical and Inorganic Chemistry, Radvilėnų pl. 19, Kaunas LT-50254, Lithuania

Bibliografia

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