Aplicación de adhesivos termofusibles ecológicos en bolsas de papel

1. Asa de bolsa (Asas de bolsas de papel)
   Los adhesivos termofusibles ecológicos proporcionan una resistencia instantánea para pegar asas a bolsas de papel. Ofrecen alta resistencia al despegue (40N/25).mm²） and remain flexible even at -10°C, preventing handle detachment under load. Else adhesives are solvent-free, pass certificaciones SGS, and exhibit low odor, making them safe for food-grade packaging 610.
2. Unión de Costoura Lateral (Juntas de Papel a Papel)
   For side seams, adhesives like Devote® 9011 asegurar rapid curing (15–20 seconds) and strong cohesion across paper types (kraft, coated, or laminated). Key properties include high viscosity control (1,300–2,400 MPa·s /180°C) to prevent seam splitting during bag expansion. Open time (10–15 seconds) allows precise alignment in high-speed production.
3. Sellado Inferior (Costouras que Soportan Carga)
   Bottom seams require exceptional shear strength. Specialized adhesives (e.g., Devote® 9022A) withstand >15# copper ball initial tack and rigorous load tests. Ely maintain integrity under stress (e.g., 2.5 MPa tensile strength) and high weights, critical for grocery or gift bags. Performance is validated via load-bearing simulations (e.g., 60°C to -15°C cycles) .

Validación de carga
Los adhesivos se someten a pruebas de peso (por ejemplo, colgando pesos que simulan contenidos de 5 a 10 kg) y de resistencia a la flexión (10,000 pliegues) para garantizar la durabilidad de las costuras.