What Is Glue Coating GSM?
Direct Answer
Glue coating GSM is the grams of hot-melt adhesive applied per square meter — typically 1.5–3 gsm — balancing bond strength against cost and stiffness.
Key Takeaways
- Glue coating GSM is the grams of hot-melt adhesive applied per square meter — typically 1.5–3 gsm — balancing bond strength against cost and stiffness.
- How it works: Spray or slot-die systems deposit adhesive at a controlled gsm; too little causes delamination, too much stiffens the product and raises cost..
- Elastic waistband glue at low gsm
- Lower gsm is not always better — bond strength must still pass peel tests
How Glue Coating GSM Works
Spray or slot-die systems deposit adhesive at a controlled gsm; too little causes delamination, too much stiffens the product and raises cost.
Examples and Applications
- Elastic waistband glue at low gsm
- Full-coverage slot-die coating for backsheets
Glue Coating GSM vs. Related Terms
| Term | What it is | Key difference |
|---|---|---|
| Hot melt adhesive | Glue Coating GSM | GSM is the amount applied; hot melt is the material |
Limitations and Common Misconceptions
- Lower gsm is not always better — bond strength must still pass peel tests
- Application pattern (spray vs slot) matters as much as the amount
How much glue is used in a diaper?
Typically 1.5–3 gsm across targeted areas — enough for strong bonding without stiffening the product.
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)