Block Bottom Valve Sacks Feature Enhanced Durability

Produced in a heat-sealing process from coated polypropylene woven fabric, Starlinger AD*STAR block bottom valve sack features enhanced break resistance and durability, and is also versatile, economical, and environment-friendly.

The latter was confirmed by a recent life cycle analysis, in which these sacks scored better than sewn cement sacks made from polypropylene tape fabric and paper cement sacks. The study, which compared AD*STAR cement sacks with cement sacks from China (sewn sacks made of recycled woven polypropylene tape fabric) and Saudi Arabia (paper), showed that AD*STAR sacks have the lowest greenhouse potential of them all. Also by other criteria, such as acidification potential, ozone depletion potential, energy and water consumption, they were the most eco-friendly.

“A changeover to AD*STAR sacks for cement packaging would be of special interest to China,” said Hermann Adrigan, sales director of Starlinger, assessing the situation. “Not only would it ease the impact on the environment by considerably reducing CO2 emissions, but using AD*STAR sacks would enable the automation of the entire chain of cement filling and transport processes to a much higher degree. This would greatly benefit the ongoing modernization on the Chinese cement sector.”

140 Sacks per Minute and More
AD*STAR block bottom valve sacks are produced using a special heat sealing process on ad*starKON conversion lines from Starlinger. These lines achieve production speeds of 100 to 140 sacks per minute, operating on the basis of the heat-sealing process patented by Starlinger. ad*starKON conversion lines feature a wide range of product options. In addition to block bottom sacks with or without valve, as well as lined and BOPP laminated block bottom sacks, they can produce AD*STAR *carry bags and reicoSTAR block bottom sacks made of spunbonded fabric. Quick, simple, and almost entirely automated format changeover offers sack producers maximum flexibility for the production of varying sack sizes and designs.
 
Starlinger & Co. Ges.m.b.H., Vienna, Austria +43 1 59955-0 www.starlinger.com

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