Application of Gelatin in Textile Industry
Application of Gelatin in Textile Industry
1. Sizing Agent
Function: Gelatin is applied to yarn (especially cotton or silk) before weaving to increase strength and reduce breakage.
Benefits:
Forms a thin, flexible film around fibers.
Reduces friction and hairiness during weaving.
Improves abrasion resistance.
2. Fabric Finishing
Gelatin is used to impart a smooth, lustrous, and slightly stiff finish to delicate fabrics such as:
Silk
Tulle
Fine cotton
It provides a temporary crispness and is water-soluble, allowing removal after washing.
3. Printing Paste Ingredient
Gelatin can be used in thickening printing pastes for textile printing (especially with natural dyes).
Helps achieve sharp design outlines and consistent color penetration.
4. Coating and Adhesion Promoter
Used as a base layer or adhesive for functional textile coatings (such as metallic or conductive films).
Helps in adhering decorative or technical coatings onto fabric surfaces.
Summary of Functions:
| Application | Role of Gelatin |
|---|---|
| Yarn sizing | Strengthens yarns, reduces breakage during weaving |
| Fabric finishing | Adds stiffness, smoothness, and a glossy look |
| Printing paste | Thickens dye paste, improves print clarity |
| Coating aid | Enhances adhesion of coatings or functional materials |
Advantages:
- Natural and biodegradable
- Non-toxic and safe for workers
- Water-soluble and easily removed if needed
- Compatible with delicate fabrics
Limitations：
- Less durable than synthetic sizing agents (e.g., polyvinyl alcohol)
- Moisture-sensitive: Gelatin finishes may degrade in humid conditions
- Not suitable for high-speed, modern weaving in industrial settings
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