SILICONIZED PAPERS
Silicone coated Papers
The variety of paper liners is nearly unlimited. Additionally to the main liner groups of super calandered, clay coated,
machine glazed and PE-coated papers, many other substrates could be applied.
Super calendered Kraft papers
Super calandered Kraft papers are highly densified papers, offering a smooth and closed surface which is ideal for
silicone coating. Generally, two different product groups can be distinguished:
Glassines
This paper grade encompasses the highest degree of density and offers an optimal surface for a consistent silicone
coating. Besides good coating capability, Glassine is manufactured within narrow caliper tolerances and provides
good die-cutting performance. Due to its low absorption level, thin and consistent silicone coatings can be applied.
Especially for double sided liners within narrow release differentials, Glassine offers considerable advantages in
comparison to other paper carriers.
Possible Product Combinations at Laufenberg
Available basis weights:
40 – 160 g/m² ( approx. 21,5 – 98 lbs/ream)
Paper Color:
upon request
Coatings:
single and double sided
Silicone:
solventfree; available also with low friction additive and in tinted version
Print:
reverse side or with print under silicone possible (single color flexographic)
Specialty:
also available as repulpable version
SCK – Super Calandered Kraft
Though also super calandered, this liner is less densified in comparison to a Glassine paper. Reverse side
roughnesses as well as caliper of a SCK liner are significantly higher, if compared with a Glassine.
Possible Product Combinations at Laufenberg
Available basis weights:
68 – 90 g/m² (approx. 30 – 50 lbs/ream)
Color:
white
Coatings:
single and double sided
Silicone:
solvent free; available also with low friction additive and in tinted Version
Print:
reverse side or with print under silicone possible (single color flexographic)
Specialty:
also available as repulpable version
Clay Coated Kraft (CCK)
Clay Coated Kraft papers combine two major advantages. Due to their top coating, these papers provide a very
consistent surface and good dimensional stability. The variations on clay coatings are very versatile, starting from
one side coated papers with single clay layers to double sided clay coated liners with multiple top coatings and high
internal bond constructions. Available surfaces range from high gloss to matt finish.
Possible Product Combinations at Laufenberg
Available basis weights:
80 – 150 g/m² (37 – 92 lbs/ream)
Colors:
white; colored liners upon request
Clay Coatings:
single or double sided
Surface Finish:
glossy to matt finish
Release Coating:
single or double sided
Silicone:
solvent free; available also with low friction additive and in tinted Version
Print:
reverse side or with print under silicone (single color flexographic)
Specialties:
reverse side PE-extruded with our without perforation
Machine Glazed Kraft Papers (MGK)
This carrier is an uncoated paper that is a glazed on one side (Yankee-Cylinder) only. Because of its low density, MGK
has a high porosity.
Possible Product Combinations at Laufenberg
Available basis weights:
45 – 65 g/m² (37 – 92 lbs/ream)
Colors:
white; natural/unbleached upon request
Release Coating:
single or double sided
Silicone:
solvent free
Print:
reverse side (single color flexographic)
PE-Coated Kraft (PEK)
The extruded PE-layer is primarily protecting the paper against moisture and /or is enhancing the dimensional
stability of a liner. Through the combination of especially selected paper carriers and PE coating, the surface
characteristic, mechanical strength as well as optical appearance can be customized.
Possible Product Combinations at Laufenberg
Available basis weights:
65 – 140 g/m² ( – 92 lbs/ream)
Colors:
white; unbleached or colored upon request
PE-coatings:
single or both sides PE coated LDPE/MDPE/HDPE possible
Surface finish:
gloss/matt further combinations possible
Release Coating:
single or double sided
Silicone:
solvent free
Print:
print on PE or under PE layer