Adhesives for Laminating
Cattie Adhesives has deep market application knowledge of Laminating adhesives based on VAE- PVA – PVOH water based adhesives and 100% Solids hot melt and PUR technologies.
We have expertise in formulating Custom Adhesives based on polyurethane and hot melts, based on EVA, APAO, metallocene and polyethylene chemistry.
Laminating Adhesives – Types of laminates, primers, tie layers, for dry , wet bonding, extrusion lamination
- One and two part water-based adhesives based on VAE, PVA, acrylic emulsion and polyurethane EVA dispersions.
- One part moisture cure reactive polyurethanes PURs 100% solids PUR hot melts.
- One and two part water borne adhesives based on VAE, PVAc, PVOH, Acrylic, SBR and other Latex copolymers
- Hot melts for lamination based on EVA, APAO, Polyethylene ,metallocene
Application Methods
- Direct gravure, reverse gravure
- Flexo
- Smooth Roll
- Differential roll coaters , slot coaters
- Extrusion coaters
- Coex and tandem lamination extruders
- Smooth roll laminators 3,4,5 roll systems
Dispensing – Laminating equipment
- Meter mix dispensing units from Graco, Liquid Controls, Dopag, Pyles, Valco
- Drybond wet bond laminators Faustel, PCMC, Inta Rota, Black Bros glue spreaders
Markets Covered and typical structures
- Snack, dry food and confectionery PP/PP, PP/ MET/, Cello/Cello
- Fabric / fabric , Fabric / film ,foam (PU,EVA,EPS)
- Fresh cut produce PP/PP, PE/PE
- Aqueous ,snack, and condiment PET/PE, PP/PE, METPET/PE
- Meat and cheese PET/PVDC//PE, Nylon/PVDC//PE, METPET//PE
- Confectionery, Coffee, Coffee Brick Packs METPET/PE, PP/Nylon/Foil/PE
- Steam Autoclave, ETO pouches Medical PET/Cast PP
- Decorative Bags Overlays Paper/PP, or METPP, Acetate , PET
- Industrial PET/PE, PET/Foil, wood working HPL
For more detailed information on our complete line of Laminating Adhesives, to speak with a technical representative about your application, and to request samples, please call us at 1-800-249-0337 or email us sales@cattieadhesives.com
Hot Melt – Trouble Shooting Tips
| Problem | Possible Cause | Suggested Solution |
|---|---|---|
| Stringing | Application temp. too low | Raise application temp. DO NOT exceed recommended application temp. |
| Viscosity of adhesives is HIGH | Raise application temp. DO NOT exceed recommended application temp. | |
| Substrate is too far from applicator tip. | Position substrate closer to tip. | |
| Substrate temp. is too cold | Pre-warm substrate to increase surface temperature. | |
| Poor nozzle shut off | Clean Nozzle and repair. If problem persists, contact equipment manufacturer. | |
| Charring/Gelling in Reservoir | Reservoir temp. too high | Lower reservoir temperature |
| Faulty heating control | Check control and replace | |
| Surface oxidation | Maintain level of adhesive in reservoir. Keep reservoir covered; with some adhesives, nitrogen blanket may be necessary. | |
| Dripping Nozzle | Worn needle or seat | Replace |
| Nozzle dirty | Clean or replace | |
| Air in Adhesive at Applicator Tip | Extrusion head faulty | Consult with the manufacturer for a recommendation |
| Reservoir is out of adhesive. | Bleed lines and refill reservoir. Reset or replace valve. | |
| Poor Adhesion | Adhesive bond shows that the glue film is mostly on one surface which is caused by improper penetration of the secondary surface. | A) Apply heavier glue film and/or apply adhesive hotter. Sometimes both approaches are necessary.
B) In the case of very conductive surfaces (metals) the substrate may have to be preheated to assure proper penetration of the secondary substrate. |
| Bond failure shows adhesive on both surfaces with leggy strains.Usually caused by disturbing the Bond during the setting stage. | A) Check compression to assure that there is no shifting during adhesive set up.
B) Apply less adhesive. C) Lower adhesive Temperature. | |
| Poor penetration of substrate coating | A) Apply adhesive hotter.
B) Combine substrates quicker. C) Lower adhesive temperature. | |
| Glossy adhesive surface usually caused by poor contact with the secondary substrate. Temperature too low for proper wet out. | A) Adjust compression to assure intimate contact of substrates.
B) Increase adhesive temperature. | |
| Substrates Popping open | Hot melt is not cooling rapidly enough | A) Lower application temperature.
B) Decrease amount of adhesive applied. |
| Substrate is too hot to achieve proper cooling of adhesive | Cool substrates to room temperature if possible. |
For more detailed hot melt trouble shooting tips, or to speak with a technical representative about your application, and to request samples, please call us at 1-800-249-0337 or email us at sales@cattieadhesives.com
Heatseal Tapes
Cattie Adhesives – Manufactures a Full Line of Heatseal Tapes for many – Industrial, Food Packaging, Flexible Packaging, Paper Converting and Specialty Applications.
How to choose Barrier Film
