Brown Sack Kraft Paper

In order to give our brown paper grades the best possible strength properties, they are made out of virgin fibre from slow-growing pine and spruce. With efficient converting in mind, our paper is the ideal choice for a wide range of applications, such as sacks for cement & building materials, food and animal feed.

Advantage High Strength Plus is recommended to be used for particularly demanding applications.

Benefits of our Sack Kraft Papers

  • Strength
    Both our brown and our white sack kraft paper grades offer excellent strength properties. Our strongest grades have a TEA index of up to 3.8 J/g. These grades are ideal for 1-ply and 2-ply industrial bags with a filling weight up to 50 kg.
  • Porosity
    For fast and dust-free filling of cement or other powdered goods we offer papers with a perfect combination of strength and porosity. These papers are porous enough to allow efficient de-aeration of bags during filling so that perforation is not needed. Yet they are strong enough to withstand the tough demands of filling and handling.
  • Printability
    Our white sack kraft paper grades in particular offer excellent print characteristics. A smooth paper surface and uniform paper formation achieve a high-quality print result that enhances your bag`s point-of-purchase appearance.
  • Runnability
    In the bag converting plant, paper features such as strength, stiffness and surface smoothness must be stable to ensure effective operation of the high-speed machinery.

End-uses

  • Cement & Building Materials
  • Chemicals
  • Food
  • Animal Feed
  • Pet Food

 

Specifications

Properties

 

Test method

 

Typical values

Basis weight

g/m² ISO 536   70 80 90
Tensile strength kN/m ISO 1924-3

MD

CD

6.0

4.8

6.8

5.4

7.6

6.1

Tensile index Nm/g ISO 1924-3

MD

CD

85

68

85

68

85

68

Stretch at break % ISO 1924-3

MD

CD

8.0

8.5

8.0

8.5

8.0

8.5

Tensile Energy Absorption (TEA) J/m² ISO 1924-3

MD

CD

265

265

300

300

345

330

TEA index J/g ISO 1924-3

MD

CD

3.8

3.8

3.8

3.8

3.8

3.7

Tear index mN.m²/g ISO 1974

MD

CD

13.0

13.0

13.0

14.0

14.0

14.5

Air resistance

s ISO 5636-5   15 15 15

Cobb 60"

g/m² ISO 535  

30

30 30

The table above shows typical values for certain basis weights.

Validity: 01.01.2017 – 31.12.2017
Test conditions: ISO 554 – 1976 (23 ± 1°C / 50 ± 2%)

MD= Machine Direction
CD= Cross Direction  

Related products

Advantage High Strength

Advantage High Strength is a brown, highly extensible sack kraft paper combining excellent runnability and extremely high tensile energy absorption (TEA).