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Home > News > Packaging

Austrian invention becomes national standard for cement packaging in China

Source：Adsale Plastics Network Date ：2021-03-05 Editor ：JK

The Chinese Standard GB/T 9774-2020 “Sacks for Packing Cement”, officially released by the Chinese government in October 2020, defines types and specifications of bags used for packaging cement.

One of the three bag types permitted in the standard is the block bottom valve bag made of woven PP tape fabric. This type of bag was invented in 1995 by Starlinger & Co. GmbH and patented under the brand name AD*STAR.

With the AD*STAR bag, Starlinger, an Austrian engineering company specialized in machinery for woven plastic packaging, created a sustainable and efficient packaging solution for cement and all kinds of dry bulk goods.

The idea behind it was to combine the advantages of a paper bag – its brick shape and suitability for automatic handling – with the tightness and flexibility of a PE film bag, and the strength and resistance of a woven PP bag. The result: A laminated one-layer block bottom valve bag made of stretched and woven PP tapes.

AD*STAR bag is a block bottom valve bag made of woven PP tape fabric.

The main assets of AD*STAR bags are their low breakage rate and protection against moisture. Especially in countries like China, transport and storage of cement in bags is widespread and involves a lot of transhipping and long-term storage. Loss of cement due to bag rupture or hardening in humid conditions is a big issue.

Packaging cement in AD*STAR bags offers savings potential in this respect: low breakage rates and good moisture protection mean that less cement is lost in the logistic chain. Consequently, not only environmental pollution is reduced, but also less cement needs to be produced to replace these losses, which in turn saves CO2 emissions.

AD*STAR bags are produced on Starlinger ad*starKON block bottom conversion lines and are available in a wide range of sizes. The company’s focus on research and development ensures that AD*STAR bags and AD*STAR production technology are continuously improved and adapted to the needs of the market.

Technological advancements and new product features such as easy-open closure or handles for carrying make the bags even more versatile and usable in different applications.

Currently, around 15.7 billion AD*STAR sacks are produced each year on more than 550 Starlinger conversion lines installed on five continents.

Cement companies are given a transition period until 31 March 2022 to adapt to the new standard. Due to this time limit, Starlinger’s AD*STAR conversion lines are currently high in demand in China. The company expects to deliver and install machines for an additional production capacity of more than 2 billion AD*STAR bags on the Chinese market in 2021 and 2022.

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Source：Adsale Plastics Network Date ：2021-03-05 Editor ：JK

The Chinese Standard GB/T 9774-2020 “Sacks for Packing Cement”, officially released by the Chinese government in October 2020, defines types and specifications of bags used for packaging cement.

AD*STAR bag is a block bottom valve bag made of woven PP tape fabric.

Technological advancements and new product features such as easy-open closure or handles for carrying make the bags even more versatile and usable in different applications.

Currently, around 15.7 billion AD*STAR sacks are produced each year on more than 550 Starlinger conversion lines installed on five continents.