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

Abstract

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 process 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 agen t 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 fabricratio - H 10:1, at temperature T = 550C 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.

Keywords

• cotton
• hemp
• enzymes
• bioscouring tretment with ultrasound
• weight loss