Hot-Melt Adhesive for Sanitary Products
1. Application Scope & Production Adaptability
1.1 Wide Substrate Compatibility
Effectively bonds core substrates in sanitary product manufacturing, including PE film, non-woven fabric, porous film, and tissue paper. Ensures stable, long-lasting adhesion between layers, eliminating delamination risks that cause downstream product defects.
1.2 Target Application Scenarios
Exclusively engineered for the structural bonding of sanitary napkins and disposable diapers (including baby diapers). Optimized for all types of high-speed fully automated production lines (common line speeds: 300–800 pcs/min for diapers, 200–500 pcs/min for sanitary napkins), matching the rhythm of modern sanitary product manufacturing to avoid production bottlenecks.
2. Product Types & Functional Positioning
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Adhesive Type
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Target Product
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Core Function
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Construction Hot-Melt Adhesive
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Baby diapers, Sanitary napkins
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Serves as the “structural backbone”—secures key components (e.g., absorbent core, top sheet, back sheet) to ensure overall product integrity during use.
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Positioning Hot-Melt Adhesive
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Sanitary napkins
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Enables precise fixation of functional parts (e.g., wings, leak-proof edges) on the product body, ensuring consistent positioning accuracy (tolerance ≤±0.3mm) in high-speed production.
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Elastic/Spandex Hot-Melt Adhesive
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Baby diapers
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Bonds elastic/spandex strips (waistband, leg cuffs) to the diaper body, maintaining elasticity after repeated stretching while preventing adhesive failure or spandex slippage.
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3. Core Advantages (Procurement-Centric Value)
1. Safety & Compliance (Meets Premium Brand Standards)
- Non-toxic & Harmless: Complies with global sanitary product safety regulations (e.g., EU REACH, US FDA 21 CFR) and infant skin-contact standards. Free of heavy metals, formaldehyde, and volatile organic compounds (VOCs), eliminating safety risks for end-users and avoiding brand reputation losses for procurers.
2. Production Efficiency & Stability
- Excellent Sprayability: Optimized viscosity (1,500–3,000 cP at 160–180℃) ensures uniform atomization in automated spraying systems, reducing adhesive waste by 5–8% and preventing nozzle clogging that causes production downtime.
- Superior Heat Stability: Maintains consistent performance (no viscosity fluctuation, no carbonization) under long-term high-temperature operation (160–200℃) in production lines, ensuring stable adhesion quality across 8–12 hours of continuous production.
3. Quality & Cost Optimization
- Strong Initial & Long-Term Viscosity: Delivers instant bonding (initial tack ≥8N/25mm) to avoid component displacement in high-speed production, while maintaining long-term adhesion (no aging or brittleness) for the product’s shelf life (18–24 months).
- Light Initial Color: Transparent to pale yellow appearance, avoiding color migration to light-colored substrates (e.g., white non-woven fabric). Ensures product aesthetics, reducing rejection rates caused by visual defects.
- High Applicability: Compatible with multiple substrate types and production processes (spraying, rolling, dot coating), eliminating the need for procurers to switch adhesives for different product lines—lowering inventory costs and simplifying supply chain management.
