Brønsted acidic ionic liquids: Innovative starch desizing agents.

Area of Science:

• Textile Chemistry
• Green Chemistry
• Materials Science

Background:

• Traditional textile desizing often relies on enzymatic or harsh acidic processes with environmental and performance drawbacks.
• Developing sustainable and efficient desizing agents is crucial for the textile industry.

Purpose of the Study:

• To investigate the efficacy of synthesized Brønsted acidic ionic liquids as novel starch desizing agents for textile substrates.
• To evaluate the impact of varying conditions (temperature, concentration, time) on the desizing performance.

Main Methods:

• Synthesized inexpensive Brønsted acidic ionic liquids were applied to cotton fabric for starch desizing.
• Sample analysis included Fourier transform infrared spectroscopy, microscopy, Tegewa tests, weight loss, tensile strength, wetting properties, and shade change assessment.

Main Results:

• Ionic liquids demonstrated effective starch desizing, achieving Tegewa 6 or higher.
• No adverse effects were observed on fabric strength, whiteness, or other physical properties.
• The ionic liquids proved to be a viable alternative to conventional enzymatic desizing processes.

Conclusions:

• Synthesized Brønsted acidic ionic liquids are promising novel agents for textile starch desizing.
• These ionic liquids offer advantages over enzymatic treatments, avoiding common drawbacks of acidic processes.