CMD said the traditional way to make drawstring bags creates the side seals of the bag on a blown film polyethylene web traveling up to 600 feet per minute, and then places a cut-off perforation between those seals to separate the string of bags. The exact placement of that perforation is a major challenge.
CMD's patent-pending sure-seal technology can cut down on waste when making the bags, saving about $100,000 a year in resin costs for each line, according to CMD President Steve Sakai.
“Because our technology creates a single seal with the perforation precisely centered, the problem of incorrect perforation placement, missing side seals and excessive film in between bags is reduced, if not eliminated,”
The technology is available on new equipment and it can be retrofitted on existing lines.
CMD also introduced its Global Drawtape System and its Global High Speed Winder.
For the Global winder, wound bags may be connected to each other by perforations, or with each bag separated and overlapped onto the previous bag. The winder turns out coreless rolls at up to 30 cycles per minute. It is designed for high-cycle production of small-count rolls, without limiting line speed.
Tel. 920-730-6888, fax 920-730-6880.