Product Flow Issues on Vertical Baggers
Refinements and Forming Set Designs that Boost Productivity and Package Quality Optimizing packaging performance requires fine-tuning of the entire product flow process—from the way product is distributed into the measuring system through to the filled, sealed, and cut bag or pouch. Symptoms of product flow issues on vertical baggers include downtime from product blockages and poor end seals and cutting […]
Solving Cutting Problems on Flow Wrappers During Production
When cutting problems occur on horizontal flow wrappers during a production run, what are the best procedures to get packaging lines up and running again and to keep them running? Minimizing downtime, producing consistent quality packages, and managing costs require a balanced approach that includes: Knowing which “quick-fix” adjustments will get knives cutting without causing […]
Sealing Over Extra Layers of Film at the End Seal (part 4 of 4): Optimizing Crimper & Sealing Jaw Design
There is no one-size-fits-all solution for the design of crimpers and sealing jaws on horizontal flow wrappers and vertical baggers; they should be specified according to the packaging film, products, and conditions of your packaging operation. This post, the last in our four-part series, reviews design options for crimpers and jaws. The optimal combination of […]
Troubleshooting Extra Layers of Film at the End Seal (part 3 of 4): Optimizing Set-Up & Adjustment of Crimpers, Sealing Jaws, & Knives
The first two parts of this series explored the potential problems created by end seal wrinkles and creases and ways to eliminate or reduce them on horizontal flow wrappers (Part 1) and vertical baggers (Part 2). In some situations wrinkles or creases are unavoidable, and, even without those issues, most packages have the inevitable transition between multiple film […]
Troubleshooting Extra Layers of Film at the End Seal (Part 2 of 4): Refining and Eliminating Wrinkles and Creases on Vertical Baggers
Varying thicknesses of film at the end seal can cause sealing problems, especially at the transition points of multiple film layers created by the fin or lap seal, gussets, wrinkles, creases, and at the corners. Applications of pressure and heat must be great enough to cause the sealant layer to flow into and seal off […]
Troubleshooting Extra Layers of Film at the End Seal (Part 1 of 4): Refining and Eliminating Wrinkles and Creases on Horizontal Flow Wrappers
Varying thicknesses of film at the end seal can cause sealing problems, especially at the transition point between two and four layers created by the fin seal, gussets, wrinkles and creases, as well at the corners. Applications of pressure and heat (if applicable) must be great enough to cause the sealant layer to flow into […]
Troubleshooting Intermittent Seal Quality Issues
When end seal issues such as leakers or splitting occur, an important initial step is to determine where, and how often, the trouble shows up. For problems that occur inconsistently—perhaps leakers on every other package, or splits only on the top or trailing end seals of the package—you need to determine if the bad seals […]
Optimizing Knife and Anvil Set-Up on Horizontal Wrappers
Set-up procedures for knives and anvils can vary according to the make and model of the packaging machine, knife adjustment style, and other factors. There are, however, some general principles that make these adjustments more effective and efficient, reducing downtime and parts costs. ♦ Optimize Knife Design Knives ground on a diagonal, or bias–whether they have […]
HEAT: Improving Seal Quality and Consistency
For heat seal applications, each packaging film structure has a Seal Initiation Temperature (SIT), at which the sealant layer is heated enough to flow into and seal off gaps in the end seal and provide a minimally acceptable seal, and a Maximum Temperature, beyond which the film distorts, fractures, or has inadequate hot tack (seal strength and integrity […]
Assessing Crimper and Sealing Jaw Set-Up
https://vimeo.com/1185273174?share=copy&fl=sv&fe=ci This “Tech Bites” video and blog post from Greener Corporation explains how carbon paper can help you optimize seal quality on horizontal wrappers and vertical baggers. Crimpers and sealing jaws that are worn, damaged, or need a good cleaning, as well as imbalances in alignment and pressure adjustments, can cause channel leakers and distorted end seals. […]