Cellulosic fabrics printing with multifunctional encapsulated phthalocyanine pigment blue using phase separation...

Area of Science:

• Materials Science
• Textile Chemistry
• Polymer Science

Background:

• Traditional pigment printing on cellulosic fabrics faces challenges with efficiency and performance.
• Developing advanced encapsulation methods is crucial for improving pigment application and fabric properties.

Purpose of the Study:

• To formulate aqueous dispersions of citric-acrylate (CAC) oligomer encapsulating C.I. Pigment Blue 15:3 (PB15:3).
• To evaluate the impact of encapsulated PB15:3 on pigment printing efficiency, fabric properties, and antibacterial performance.

Main Methods:

• Phase separation method for CAC oligomer encapsulation of PB15:3.
• FT-IR spectroscopy and centrifuge sedimentation for confirming encapsulation.
• Thermal gravimetric analysis (TGA) and transmission electron microscopy (TEM) for characterization.

Main Results:

• Encapsulated pigment demonstrated multifunctional benefits, minimizing printing forces and accelerating fixation.
• Reduced binder requirements and improved one-step fixation without drying were observed.
• Printed fabrics exhibited enhanced antibacterial activity against E. coli and S. aureus.
• Superior light and washing fastness compared to control samples.

Conclusions:

• Citric-acrylate oligomer encapsulation offers a promising approach for advanced pigment printing on cellulosic textiles.
• The method enhances functional properties, including antibacterial activity and durability.
• This technique contributes to more efficient and effective textile coloration processes.