Internal Bubble Cooling Control Systems and Technologies

D. R. Joseph, Inc. provides the blown film industry with the latest in high "value added" technologies. Since 1989, DRJ has established industry standards in internal bubble cooling (IBC) control, width control, and machine direction sealing technologies and continues to develop innovations that make our customers more competitive and more profitable.

The quickest way to get to know about us is to view this 4 minute video. It describes our company, our industry and how our products ensure that you add value to your bottom line.

Next if you are interested in IBC technology, click on the Getting Started link below. You can also click on the blown film line picture to see specific details. Don’t forget our Products link to see everything we do to provide solutions not just answers for your blown film processing requirements.

Read this first! From benefits to implementation to after sales service, click on the links to see for yourself! These performance improvements are 100% compatible with any IS-IBC1 system. Checkout the latest news from
D. R. Joseph, Inc.
NEW! DRJ R&D Lab is Now Open
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8-bit IBC Reach End of Life
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Tech Tip...(More)
Preventing Production Rate Losses from Clogged IBC Air Flow Paths
Clogged IBC pipes or ducting significantly reduce production rate and width control performance. As film producers use multi-layer structures to encapsulate reclaim resin, the need to clean die pipes and IBC exhaust ducting needs to be checked no less than every 6 months. For those running six days per week, the residue will accumulate even quicker.
It took only six months to block 40% of the flow area in this exhaust duct. This was a HDPE resin. In some cases, increasing the IBC chilled air temperature will reduce this effect.
Click on image for enlarged view
Clogged IBC outlet pipes prevent the IBC from removing air from the bubble. Chronic problems with the bubble overblowing result. This problem will rob you of 10-20% in production rate. Click here for in-depth article on this subject.


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