What Is Spiral Spraying?
Direct Answer
Spiral spraying is an adhesive application method that deposits hot-melt glue in a spiral pattern, balancing bond strength with flexibility and breathability.
Key Takeaways
- Spiral spraying is an adhesive application method that deposits hot-melt glue in a spiral pattern, balancing bond strength with flexibility and breathability.
- How it works: Air-assisted nozzles swirl hot-melt adhesive into a spiral thread as it lands on the substrate.
- Attaching elastic strands without stiff glue lines
- Spiral spray is weaker than full coating — it is designed for elastic bonds where flexibility matters more than raw strength
How Spiral Spraying Works
Air-assisted nozzles swirl hot-melt adhesive into a spiral thread as it lands on the substrate. The spiral leaves open areas between glue lines, keeping the bond strong while the material stays flexible and air-permeable.
Examples and Applications
- Attaching elastic strands without stiff glue lines
- Bonding acquisition-distribution layers while keeping them soft
Spiral Spraying vs. Related Terms
| Term | What it is | Key difference |
|---|---|---|
| Spiral Spraying |
Limitations and Common Misconceptions
- Spiral spray is weaker than full coating — it is designed for elastic bonds where flexibility matters more than raw strength
Why spray adhesive in a spiral?
Spiral patterns give strong, flexible bonds with open spaces for breathability and softness, ideal for elastic attachment and soft layers.
References
- JP CIA (industry) - Baby diaper material: key components and their functions — 行业媒体 (accessed 2026-08-02)
- EDANA - What are nonwovens? (ISO 9092 / CEN EN 29092 definition) — EDANA (accessed 2026-08-02)