ANNALS OF THE UNIVERSITY OF ORADEA FASCICLE OF TEXTILES, LEATHERWORK STUDY REGARDING THE INFLUENCE OF THE BIOSCOURING TREATMENT IN ULTRASOUND ON 60 % COTTON + 40 % HEMP MATERIALS PART I. STUDY REGARDING THE OPTIMIZATION OF THE BIOSCOURING TREATMENT

Monica Pustianu, Dochia Mihaela, Maria Silvia, Sîrghie Cecilia
unpublished
The paper presents the optimization of the Bioscouring treatment in ultrasound on 60 % cotton + 40 % hemp materials, using the commercial product SERA ZYME C-PE (Roglyr Eco 183), based on 5-15 % Pectate Lyase (E.C.4.2.2.2). In order to assess more accurately the influence of some process parameters of the BIOSCORING treatment in ultrasound of 40 % hemp + 60 % cotton blended fabric-the concentration of enzyme (%) and treatment time (minutes)-on the weight loss, a mathematical modeling of the
more » ... ess was made, using a central compound rotatable program with two independent variables. The Bioscouring treatment was performed in ultrasound under the following conditions: (1-3 %) SERA ZYME C-PE (ROGLYR ECO 183)-Pectate Lyase; 2 mL/L HEPTOL NWS-sequestrant agent which have a binding role for the metal ions in water with high hardness, regardless of temperature; 2 mL/L SULFOLEN 148-wetting and scouring agent; 10 % of the fleet of treatment was buffer (0.1 Molar sodium phosphate/disodium phosphate, pH = 7.5); liquid to fabric ratio-H 10:1, at temperature T = 55 0 C and time-t = (20-60) minutes. Using the data obtained by measuring the weight loss, the optimum working parameters for the Bioscouring treatment in ultrasound with commercial enzyme SERA ZYME C-PE (ROGLYR ECO 183) were determined.
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