Packaging papers

UPM Silken Strong

UPM Silken™ Strong is a smooth and strong semi-kraft paper. It’s recyclable and safe for direct food contact.

Key features

As the name suggests, UPM Silken™ Strong is a smooth and strong semi-kraft paper. With no added optical brighteners (OBA), it is safe for direct food contact. It provides a good base for lamination and printing with flexo and offset. This recyclable paper is suitable for a wide variety of non-food and food end-uses, including wraps, bags, sacks, pouches, and sachets.
Safe for food
Semi-kraft
Hight strength
Smooth surface
Lamination base
Recyclable
No optical brighteners

Product information

Regions
Asia-Pacific
Business contact
Category
Packaging papers
Grade
Kraft
End use
Bags | Lamination | Pouches, sachets | Sacks | Wraps
Printing method
Flexo | Offset
Reel diameter (cm)
80.0 - 125.0
Reel width (cm)
42.0 - 220.0
Core (mm)
76.0 / 153.0
Note
Note FSC™ and PEFC on request but subject to availability (FSC C014719, PEFC/02-31-80).

Technical target values

Basis weight (ISO 536) (g/m²)
55
70
75
80
Thickness (ISO 534) (µm)
54.0
82.0
86.0
93.0
Moisture (%)
6.0
6.0
6.0
6.0
Tensile strength MD (kN/m)
4.2
6.0
6.0
6.6
Tensile strength CD (kN/m)
2.0
2.8
2.8
3.0
Tearing Resistance MD (mN)
250
450
450
550
Tearing Resistance CD (mN)
250
550
550
650
Roughness, Bendtsen Top (ml/min)
30
150
150
150
Roughness, Bendtsen BTM (ml/min)
30
150
150
150
Please note: Technical values are informative and subject to production variations.

Certificates

Product Compliance

BfR Food Certificate | FDA Food Certificate | EN 71-3: Safety of Toys | GB4806.8 | GB9685 | China QS Food Safety

Fibre Certificates

FSC Chain-of-Custody | PEFC Chain-of-Custody | CFCC

Mill Certificates

ISO 9001 | ISO 14001 | ISO 45001 | ISO 50001 | EMAS

End of life

Recyclable