Standardizing Knives & Sealing Jaws on Flow Wrappers & Vertical FFS Baggers

You can use the same knife and sealing jaw designs across different models or makes of machinery to reduce costs, improve package quality, and decrease downtime.

Do you run different makes or models of flow wrappers or vertical form-fill-seal baggers? If you do, you probably use a variety of knife and sealing jaw styles that you need to keep in stock. With different knife or sealing jaw designs, the seal quality and appearance of your packages may vary, depending on which machine, line, or facility produced them. Read more

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Forming & Sealing on Vertical FFS Baggers: 6 Key Design & Set-Up Principles

Discover 6 key design and set-up principles that will help you identify the source of forming and sealing problems and develop solutions. Learn how to optimize the performance on your formers, sealing jaws, and your whole packaging process.

This Greener Tech Bite, with the help of our partner Kenray Forming, explores six key design and set-up principles to help you identify the source of forming and sealing problems and develop solutions for quality packages. Read more

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Repeatable Quality and Productivity


In this blog post and Tech Bites video we outline solutions to achieve repeatable quality and productivity on horizontal flow wrappers and vertical baggers across all production shifts, multiple packaging machines, and different plant locations.

In this blog post and Tech Bites video we outline solutions to achieve repeatable quality and productivity on horizontal flow wrappers and vertical baggers across all production shifts, multiple packaging machines, and different plant locations.
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Case Study: New Film Trials

In this blog post and Tech Bites video we consider a case study on running successful new film trials by optimizing parts designs, machine set-up, and operating procedures according to new film specifications.

In this blog post and Tech Bites video we consider a case study on running successful new film trials by optimizing parts designs, machine set-up, and operating procedures according to new film specifications.
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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 and seal off these voids. Excess pressure can easily crush or split the end seal, while overheating distorts the seal and can cause poor hot tack, where the film springs back open, or “moons,” before the seal can set.

Package Quality Issues_Greener Corporation

The operating window for creating quality seals can be elusive, resulting in packages that leak, are distorted, and have little appeal to consumers.

An important step in troubleshooting these issues is to eliminate unintended wrinkles and creases. This post, the first in a four-part series, will examine this process on horizontal flow wrappers; Part 2 considers these issues on vertical baggers.

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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 show up randomly or according to a pattern. Do the problems occur on every package? On both ends of the package?

Start out by collecting a series of packages produced by the machine during production conditions. Number the packages sequentially and mark the machine flow direction. If you are working on a horizontal wrapper with multiple crimpers, label each pair (ex: A, B) and mark each seal according to the set of crimpers it came from. Now you can trace the problem seals back to the place they occur.

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Cleaning to Improve Package Quality & Productivity

The newest video in Greener Corporation’s “Tech Bites” series demonstrates the benefits of proper cleaning procedures for crimpers and sealing jaws on horizontal flow wrappers and vertical baggers.
The newest video in Greener Corporation’s “Tech Bites” series demonstrates the benefits of proper cleaning procedures for crimpers and sealing jaws on horizontal flow wrappers and vertical baggers.

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White Papers: From Problem Solving to Proactive Improvement

Greener Corporation has published a series of white papers devised to help optimize package quality and productivity on horizontal and vertical form fill seal packaging lines. In addition to helping you solve problems, these technical articles provide foundational information you can use to implement proactive improvements—an approach that helps deter problems from occurring in the first place.

End Seal Leaks at the Fin Seal Fold

End Seal Leaks at the Fin Seal Fold

Serration Pattern Design

Serration Pattern Design

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Adjusting Backlash to Improve Quality and Performance

The first video in Greener Corporation’s “Tech Bites” series explains how adjusting backlash on horizontal flow wrappers helps prevent problems such as fractured end seals and premature failure of knives and anvils.
The first video in Greener Corporation’s “Tech Bites” series explains how adjusting backlash on horizontal flow wrappers helps prevent problems such as fractured end seals and premature failure of knives and anvils.

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