Advances in slot die coating technology for hot melt adhesives
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Slot die coating technology is often used in hot melt coating for adhesive industries. Get technical information in this presentation.
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Advances in slot die coating technology for hot melt adhesives
- 1. ADVANCES IN SLOT DIE COATING TECHNOLOGY FOR HOT MELT ADHESIVES
- 2. INTRODUCTION • Hot melt adhesive coating • Extrusion coating • Liquid coating
- 3. INTRODUCTION • Internal similarities • External variations • Hot Melt o Versus Extrusion o Versus Liquid
- 4. Distribution chamber Feed port Slot gap Lip land INTRODUCTION • Internal similarities • Hot Melt o Versus Extrusion o Versus Liquid
- 5. INTRODUCTION • External variations o Coating technique • Hot Melt o Versus Extrusion o Versus Liquid
- 6. INTRODUCTION • External variations o Heat effect • Hot Melt o Versus Extrusion o Versus Liquid
- 7. ADHESIVE RHEOLOGY (VISCOSITY & ELASTICITY) • Viscosity (shear rate versus viscosity) • Elasticity (stress and velocity interaction)
- 8. ADHESIVE RHEOLOGY (VISCOSITY & ELASTICITY) • Defects o Wrinkle o Curl o Voids o Die Swell o Edge Beads
- 9. ADHESIVE RHEOLOGY (VISCOSITY & ELASTICITY) • Solutions o Wrinkle/Curl = reduce stress at coating or during curing o Voids = limit of process o Die Swell = reduce internal stress o Edge bead = slot to substrate gap
- 10. EQUIPMENT DESIGN • 3D FEA
- 11. EQUIPMENT DESIGN • System influence o Slot die o Positioner o Roll o Fluid delivery Adhesive formualtion o Substrate Web handling/tension
- 12. OPERATION • Variables o Lip gap o Lip offset o Lip geometry o Attack angle o Die to substrate gap
- 13. OPERATION • Limitations o Line speed 3280 feet/min (1000 meters/min) o Coat weight 1 mil (25.4 microns)*
- 14. OPERATION • Slot die design o Flex lip >3 mils (76.2 microns) o Rotary rod lip 1-3 mils (25.4-76.2 microns)
- 15. OPERATION • Slot die design o Flex lip >3 mils (76.2 microns)
- 16. OPERATION • Slot die design o Rotary rod lip 1-3 mils (25.4-76.2 microns)
- 17. OPERATION • Roll interaction o TIR < 0.0005 in (12.7 micron) o Concentricity < 0.0005 in (12.7 micron) o Cylindricity < 0.001 in (25 micron) o Ra < 4 micro-in (0.1 micro-m) o Durometer (90 Shore A) o Rotary rod lip 1-3 mils (25.4-76.2 microns)
- 18. CONCLUSION • Hot melt coating = crossroads of technology • Viscoelasticity • Temperature effects • System influence
Notas do Editor
- Worldwide growth in the use of hot melt adhesives has created a strong demand for process techniques and equipment systems that provide consistent, streak-free application of adhesives at high speed and with minimal environmental impact. Recent advances in technology and technique have added to the ability to coat hot melt adhesives economically, productively, and with improved product quality. Recent advances in technology and technique Current state of hot melt coating (economy, productivity, and improved product quality)
- Worldwide growth in the use of hot melt adhesives has created a strong demand for process techniques and equipment systems that provide consistent, streak-free application of adhesives at high speed and with minimal environmental impact. Recent advances in technology and technique have added to the ability to coat hot melt adhesives economically, productively, and with improved product quality. Recent advances in technology and technique Current state of hot melt coating (economy, productivity, and improved product quality)
- Worldwide growth in the use of hot melt adhesives has created a strong demand for process techniques and equipment systems that provide consistent, streak-free application of adhesives at high speed and with minimal environmental impact. Recent advances in technology and technique have added to the ability to coat hot melt adhesives economically, productively, and with improved product quality. Recent advances in technology and technique Current state of hot melt coating (economy, productivity, and improved product quality)
- Worldwide growth in the use of hot melt adhesives has created a strong demand for process techniques and equipment systems that provide consistent, streak-free application of adhesives at high speed and with minimal environmental impact. Recent advances in technology and technique have added to the ability to coat hot melt adhesives economically, productively, and with improved product quality. Recent advances in technology and technique Current state of hot melt coating (economy, productivity, and improved product quality)
- Worldwide growth in the use of hot melt adhesives has created a strong demand for process techniques and equipment systems that provide consistent, streak-free application of adhesives at high speed and with minimal environmental impact. Recent advances in technology and technique have added to the ability to coat hot melt adhesives economically, productively, and with improved product quality. Recent advances in technology and technique Current state of hot melt coating (economy, productivity, and improved product quality)
- Worldwide growth in the use of hot melt adhesives has created a strong demand for process techniques and equipment systems that provide consistent, streak-free application of adhesives at high speed and with minimal environmental impact. Recent advances in technology and technique have added to the ability to coat hot melt adhesives economically, productively, and with improved product quality. Recent advances in technology and technique Current state of hot melt coating (economy, productivity, and improved product quality)
- Worldwide growth in the use of hot melt adhesives has created a strong demand for process techniques and equipment systems that provide consistent, streak-free application of adhesives at high speed and with minimal environmental impact. Recent advances in technology and technique have added to the ability to coat hot melt adhesives economically, productively, and with improved product quality. Recent advances in technology and technique Current state of hot melt coating (economy, productivity, and improved product quality)
- Worldwide growth in the use of hot melt adhesives has created a strong demand for process techniques and equipment systems that provide consistent, streak-free application of adhesives at high speed and with minimal environmental impact. Recent advances in technology and technique have added to the ability to coat hot melt adhesives economically, productively, and with improved product quality. Recent advances in technology and technique Current state of hot melt coating (economy, productivity, and improved product quality)
- Worldwide growth in the use of hot melt adhesives has created a strong demand for process techniques and equipment systems that provide consistent, streak-free application of adhesives at high speed and with minimal environmental impact. Recent advances in technology and technique have added to the ability to coat hot melt adhesives economically, productively, and with improved product quality. Recent advances in technology and technique Current state of hot melt coating (economy, productivity, and improved product quality)
- Worldwide growth in the use of hot melt adhesives has created a strong demand for process techniques and equipment systems that provide consistent, streak-free application of adhesives at high speed and with minimal environmental impact. Recent advances in technology and technique have added to the ability to coat hot melt adhesives economically, productively, and with improved product quality. Recent advances in technology and technique Current state of hot melt coating (economy, productivity, and improved product quality)
- Worldwide growth in the use of hot melt adhesives has created a strong demand for process techniques and equipment systems that provide consistent, streak-free application of adhesives at high speed and with minimal environmental impact. Recent advances in technology and technique have added to the ability to coat hot melt adhesives economically, productively, and with improved product quality. Recent advances in technology and technique Current state of hot melt coating (economy, productivity, and improved product quality)
- Worldwide growth in the use of hot melt adhesives has created a strong demand for process techniques and equipment systems that provide consistent, streak-free application of adhesives at high speed and with minimal environmental impact. Recent advances in technology and technique have added to the ability to coat hot melt adhesives economically, productively, and with improved product quality. Recent advances in technology and technique Current state of hot melt coating (economy, productivity, and improved product quality)
- Worldwide growth in the use of hot melt adhesives has created a strong demand for process techniques and equipment systems that provide consistent, streak-free application of adhesives at high speed and with minimal environmental impact. Recent advances in technology and technique have added to the ability to coat hot melt adhesives economically, productively, and with improved product quality. Recent advances in technology and technique Current state of hot melt coating (economy, productivity, and improved product quality)
- Worldwide growth in the use of hot melt adhesives has created a strong demand for process techniques and equipment systems that provide consistent, streak-free application of adhesives at high speed and with minimal environmental impact. Recent advances in technology and technique have added to the ability to coat hot melt adhesives economically, productively, and with improved product quality. Recent advances in technology and technique Current state of hot melt coating (economy, productivity, and improved product quality)
- Worldwide growth in the use of hot melt adhesives has created a strong demand for process techniques and equipment systems that provide consistent, streak-free application of adhesives at high speed and with minimal environmental impact. Recent advances in technology and technique have added to the ability to coat hot melt adhesives economically, productively, and with improved product quality. Recent advances in technology and technique Current state of hot melt coating (economy, productivity, and improved product quality)
- Worldwide growth in the use of hot melt adhesives has created a strong demand for process techniques and equipment systems that provide consistent, streak-free application of adhesives at high speed and with minimal environmental impact. Recent advances in technology and technique have added to the ability to coat hot melt adhesives economically, productively, and with improved product quality. Recent advances in technology and technique Current state of hot melt coating (economy, productivity, and improved product quality)
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