Closure tapes for paper and plastic bags: precisely cut to size for automatic processing

Closure technology specialist Schümann from Stadtallendorf is responding to the growing variety of products with the further development of its optimally customised hotmelt tapes for quick and easy processing in fully automated packaging lines. The application of the right adhesive plays a key role here.

The market today offers numerous different types of paper and plastic sacks for packaging bulk goods. Depending on the industry and contents, they must be dust-tight or free-flowing and fulfil special hygiene and stability criteria. Growing demands on the Transport safety and the Product protection This means that new bag variants are constantly being created.

The closure technology specialists at Schümann are keeping a close eye on this development and are constantly adapting their range of Holtmelt tapes for closing the various bag designs accordingly. The company currently offers the right tape for almost all bulk bags currently available on the market. Hotmelt sealing strip. Regardless of whether powdery products are packed dust-tight in composite and plastic bags or granulates are packed free-flowing in paper bags.

[infotext icon]The hotmelt strips are available on ready-to-use rolls 45 or 50 millimetres wide (standard) and with running lengths of up to 1,000 metres. This makes them customisedt for processing in high automated packaging lines and seal up to 600 filled bags per hour with a multiple fold at throughput speeds of up to 25 m/s.[/infotext].

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The perfect strip for every bag

Also for the now widespread Combi bags, which consist of an inner polyethylene bag and an outer, printable paper coating, the company has the appropriate hotmelt sealing strips in its programme. This type of sack is often used in the so-called FTS process (Fold-Tape-Seal) in fully automated packaging lines, with leading system manufacturers using the company's hotmelt tapes specially designed for this technology. This is because these sealing strips have a solvent-free hot-melt adhesive that can be activated at a relatively low heating temperature and simply binds any dust particles that may be present when it penetrates the sack paper.

An important process step in the fully automated processing of the bag closure strips is their Customised cut to the width of the bag. After the automatic multiple folding of the top edge of the bag, it forms an ideal, dust-tight seal for the bag packaging. The AGV-compatible hotmelt tapes are used in the chemical, animal feed and food industries, for example.