TECH BITES

Technical posts and videos from Greener Corporation that help you solve problems and optimize your entire packaging process on horizontal flow wrappers and vertical form/fill/seal baggers. Learn how to improve:

  • Part Designs for Sealing Jaws, Knives, Formers, & more
  • Problem Solving & Preventative Maintenance
  • Training
  • Quality Improvement & Cost-Saving Projects

TECH BITES

Publicaciones técnicas y videos de Greener Corporation que lo ayudan a resolver problemas y optimizar todo su proceso de empaque en envolvedoras horizontales y envasadoras verticales de formado / llenado / sellado. Aprenda a mejorar:

  • Diseños de piezas para mordazas selladoras, cuchillas, formadores y más
  • Resolución de problemas y mantenimiento preventivo
  • Entrenamiento
  • Proyectos de mejora de la calidad y ahorro de costos

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.

packages-numbered-and-labeled_greener-corp_hff-4-descriptions_4

Read more

Share

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.


Diagonal Zig Zag Knife for Horizontal Wrapper_Greener Corporation
  Optimize Knife Design

  • Knives ground on a diagonal, or bias–whether they have a zig zag or a straight cutting edge—require less pressure to cut so they are easier to set up and typically last longer.
  • Zig zag knives with smaller (more) teeth are also easier to set up and provide longer life.

  Set Up the Crimpers First

Read more

Share

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 while the seal is still warm). The temperature range between the minimum and maximum is the film’s Operating Window.

For a number of reasons, regulating heat is not as straightforward as simply adjusting the temperature setting within the operating window for the film you are running.

 The sealing face of crimpers and sealing jaws is often hotter in the middle than at the ends, where heat dissipates more quickly. These inconsistencies are readily apparent in the thermal profile shown below:

Stainless Steel Crimper Thermal Profile

Stainless Steel Crimper Thermal Profile

Read more

Share

Case Study: Packaging Material Cost Reduction

Project Goals

The corporate engineering department at a large, international company commenced a project to reduce material costs for a variety of products that are individually packaged on horizontal flow wrappers. Greener Corporation was invited to participate in a series of meetings that defined the project’s initial goals:material cost reduction_Greener Corporation

  • To reduce the cut-off length for each package by reducing the overall seal width, thus allowing the product envelope to remain unchanged.
  • To achieve material savings without degrading seal integrity or productivity levels.
  • To achieve a project payback period of twelve months or less.

Read more

Share

Keeping Your Packaging on Track

Side to Side Misalignment

Side to Side Misalignment

Even experienced users of forming sets can, over time, become conditioned to accept the hidden costs and preventable constraints of their packaging equipment. As with all waste, however, careful diagnosis of the root causes will lead to implementation of effective solutions.

One such root cause is forming tube misalignment. This can occur if the forming set has been accidentally mishandled and damaged or if the forming set has not been properly designed and fabricated in the first place. Read more

Share

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.

Read more

Share

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

Read more

Share