Inkjet Dyes: The Chemistry Behind Colorful Textiles

Inkjet Dyes: The Chemistry Behind Colorful Textiles

Uncover the science behind vibrant textile prints! This slide explores the chemical structures of inkjet dyes: reactive (strong bonds), acid (ionic bonds), and disperse (physical dispersion). Learn how these structures interact with fibers, impacting color vibrancy and washfastness. Discover the future of inkjet dyes: improved washfastness, eco-friendliness, and functional properties.

1. CDP Presentation Group – 05 Arup Roy Antor – P202113016 Utpal Das ( Arjun ) – P202113017 Riadul Hasan Riyad - P202113020 Ink Dye/Dyes for I nkjet P rinting Understanding the Chemistry and Applications

2. Inkjet Printing or Digital Textile Printing Inkjet printing is a modern method of applying color designs directly onto fabric using inkjet technology.

3. Why Inkjet Dyes for Textiles? Traditional textile printing methods can be : Time-consuming and labor-intensive. Limited in design complexity and detail. Environmentally impactful due to water and chemical usage. Inkjet printing offers : Efficient and on-demand printing for small batches. High-resolution printing for intricate designs and patterns. More sustainable printing processes with reduced waste.

4. Chemical Structure of Inkjet Dyes for Textiles Inkjet dyes for textiles are designed for interaction with specific fiber types . Chemical structure determines dye behavior : Reactive dyes: Contain reactive groups (e.g., vinyl sulfone ) that form covalent bonds with fiber molecules for excellent wash-fastness . Acid dyes: Have sulfonic acid groups that attract positively charged sites on fibers through ionic interactions, leading to good color depth but lower wash-fastness . Disperse dyes: Small, non-ionic molecules with aromatic rings that physically disperse within hydrophobic regions of synthetic fibers, offering good color on synthetics but with limited wash-fastness .

5. Types of Inkjet Dyes for Textiles Three main types of inkjet dyes are used in textile printing : Acid dyes: Offer vibrant colors but have lower wash-fastness , suitable for decorative textiles. Reactive dyes: Form a covalent bond with fibers for excellent wash-fastness , ideal for apparel and upholstery. Disperse dyes : Work well with synthetic fibers but have limited wash-fastness , often used for sportswear.

6. Properties of Inkjet Dyes for Textiles Key properties to consider for textile inkjet dyes: Wash fastness: Ability of the dye to resist fading or bleeding during washing. Light fastness: Resistance of the dye to fading when exposed to light. Color gamut: Range of colors achievable for creating diverse and vibrant textile designs. Fiber compatibility: Suitability of the dye for different types of natural and synthetic fibers.

7. The Future of Inkjet Dyes in Textiles Advancements in inkjet dye technology : Development of dyes with even better wash-fastness and light-fastness for long-lasting textiles. Creation of eco-friendly dyes with reduced environmental impact. Exploration of functional dyes that offer additional properties like UV protection or water repellency.

8. THANK YOU

9. OUR TEAM Arup Roy Antor ID: P202113016 Dept : WPE Utpal Das Arjun ID: P202113017 Dept : WPE Riadul Hasan Riyad ID : P202113020 Dept : WPE