Catalogs >
Davis Standard Extrusion Systems >
7 layer barrier film

7 layer barrier film
2Pages

Catalog excerpts

7 LAYER BARRIER FILM OVERVIEW Davis-Standard leads the industry in flexible packaging and knows the needs for blown film systems to serve high speed converting machinery lines. This is especially true in the area of barrier films where the roll geometry and uniformity of the thickness and especially each layer leads to fast conversion speeds on pouch lines, FFS machines and laminating lines. Consistency in output and low melt temperatures from the extruders are vital. The unique extrusion concept leads to the best and most consistent melt quality (temperature uniformity to 2 degrees F and pressure variation <1%) which is necessary to get uniformity across all layers. Uniform layers allow for thinner layers of expensive materials and DS lines produce the best economic coex structures. The die systems are stationary up to 1M diameter. Oscillating haul-offs and roller collapsing frames produce flat, smooth film and rolls. These systems produce symmetric and asymmetric films. KEY FEATURES ■ DSB screws for superior processing of resin mix providing excellent melt homogeneity ■ MAC 30:1 smooth bore extruders for control of melt temperature ■ Centrex die provides excellent gauge, thermal stability and low wetted surface area ■ AutoProfile control is critical to ensure highest tolerances are achieved ■ Collapsing system options include: Carbon fiber rolls and side guides ■ Oscillating nip options: vertical, adhesive package ■ PAC surface winders or Duplex turret winder

Open the catalog to page 1

SAMPLE PRODUCTS Cereal HDPE HDPE Tie EVOH Tie HDPE lonomer 20 - 50^ TECHNICAL DATA Pouch LLD+White +Slip LLD+White Tie EVOH Tie LLD + Black LLD + mLLD + Slip 80 - 100^ Finished Product Examples Machine Configuration Nominal Layer Structure Die Diameter BuR Typical Output Thickness Range LINE CONFIGURATION ■ Material Handling Blending system including vacuum loading ■ Extrusion MAC 30:1 smooth bore extruders DSB barrier screws ■ Die & Air Ring Centrex multi layer stationary IBC die with Triple Lip Air Ring Auto profile package with oscillating gauge ■ Tower Equipment Bubble sizing cage,...

Open the catalog to page 2