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Overcoming Induction Heat Sealing Pain Points

Lori Szkodzinski — Fri, 17 May 2024 16:54:30 +0000

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Overcoming Induction Heat Sealing Pain Points

05/17/2024

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Alimento

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Region: Europe

Overcoming Induction Heat Sealing Pain Points

Globally the induction sealing machine market was worth USD 113.2 million back in 2021 and is expected to reach USD 169.67 million by 20311. The reason for the technology’s continued market growth is the range of benefits it delivers. However, to determine the most suitable induction heat sealing liner to choose for any packaging application, the container’s material, its product type and production volume all have a part to play. Also, an often overlooked factor is where in the world the product is being packaged, and its journey down the process packaging supply chain. As more and more is understood about the challenges that influence sealing success, how can producers ensure the best seal for each and every product?

Why use induction heat sealing?

Before jumping into the specifics of induction heat sealing, let’s take a moment to recap why it is such a popular sealing method across the globe:

Leak prevention

When the electromagnetic field heats the aluminium foil in the liner it activates the seal layer on the liner, and the activated seal bonds the foil to the container, creating a hermetic seal. To achieve a hermetic seal to glass containers a special type of heat seal layer is required (see GlassFuze™ boxout).

Shelf-life extension

The creation of a hermetic seal means moisture, air and other contaminants are prevented from entering the container, extending the product’s shelf-life.

Tamper evidence

Although there are clean peel liner options available, the process of sealing the foil to the container traditionally means that a tamper-evident seal is created. This is of key importance in applications such as food, beverages and pharmaceutical.

Brand boosting

The liners can be branded, allowing for increased opportunities for a brand to communicate their messaging to the consumer. Security printed liners can also be used if additional anti-counterfitting measures are needed.

Contamination risks minimised

As induction heat sealing involves no direct contact between the sealing equipment and the product, contamination risks are minimised.

Production line speeds

Easily integrated into automated packaging lines, induction sealing equipment can promote fast, efficient production processes.

Energy efficient process

Induction heat sealing seals the material in a targeted way, with no need for pre-heating, therefore overall energy consumption is kept to a minimum, unlike traditional conduction sealing.

Product consistency

Induction heat sealing delivers reliable and consistent seal quality. And as long as the right liner and container combination is chosen to meet the product’s process production and geographical demands, the seal will not be affected by ambient temperature or other environmental conditions.

Peelability and other pain points

When it comes to induction heat sealing problems that producers approach Selig to help them solve, the most frequent are:

Peel/bond strength

Peelability and bond strength problems are top of the list for producers who come to Selig looking for solutions. Power, time, heat and choice of liner needs to be carefully managed to stop premature delamination of the foil from the backing before sealing, or the backing pulling out from the cap, onto the top of the foil and getting stuck on the container. Also, in the context of sealing liners to glass jars, the resin technology needs to be fine-tuned depending on the contents being sealed and the humidity, heat or altitude the process is being carried out in.

Liner consistency

The cut and flatness of the liner is vital for a consistent seal. Either purchased as pre-cuts or as tape, it is important that the liner manufacturer is able to deliver a clean cut liner that has no damage between the foil and the backing at the cut edge. Bad cutting can cause contamination on the foil surface. Liners can also be cut in such a way as they are prone to curling once cut, increasing the potential for machine jams, causing a loss in production efficiency.

Hot climate processing

Taking coffee as an example, it is likely to be manufactured, sealed and distributed from hotter countries. However maintaining the stability of product as it moves through hot climates, particularly as heat, humidity and altitude pressure variations can stress seals. A heat seal that can perform in these challenging conditions, such as Selig’s GlassFuze™ is needed to ensure the integrity of the finished product is maintained from production site to end customer.

Successful sealing every time

The polymer bond strength between a liner’s foil and backing – and in the case of glass containers the adhesive technology it is used with – all matters to ensure there are no peel or bond issues, as does the liner producer’s manufacturing processes. Here is how Selig overcomes such issues to deliver consistent sealing around the world.

Simplified supply chain

Selig has full control over the production of its liners and can go from print and lacquer to lamination within the same facility and sequence of manufacturing. For foam backed liners, the foam is produced in Selig’s Centre of Excellence in France. It is then shipped to the UK manufacturing facility where the foam is polymer bonded and the foil added. Thanks to investment in machinery and process control, all punched disks and tape are completed in-house and to the highest quality control standards.

Bond strength

Selig’s DELTASEAL™ is a two-piece induction applied liner with a polymer bonded reseal liner. Available in board or foam options, the foam products can be created in thicknesses ranging from 1 mm to 4 mm. It has negligible retained solvent, compared to competitors’ membranes, as Selig uses water-based printing inks. Also, testing has shown greater peelable bond strength stability over the course of time, compared to liners made from other liner manufactures that use outsourced materials.

Consistent peelability

Selig is able to deliver a peel range that fits standard specifications where possible, to ensure good performance and consistency. For example, Selig’s DELTASEAL™ liner has greater consistency in its peelability over time when Selig’s in-house foil is used, compared to outsourced foil.

Heat, humidity and altitude

It is particularly challenging to seal glass containers and deliver high performance in hot or humid conditions. Selig’s GlassFuze™ heat seal technology can be used with the liners such as DELTASEAL™ to create a hermetic seal, even when the product contains oils, spices or fats. GlassFuze™ also performs well during altitude pressure changes, making it the ideal solution for glass products that are transported across the globe.

Embracing environmental and design requirements

Keeping pace with the environmental agenda and customer demands can have producers playing catch up when it comes to their packaging. Liners are at present not required to be part of any recyclability schemes. However, for those wanting to facilitate closed loop and clean recycling streams, there are options available. Also for producers wanting to push the boundaries of container design, highly effective sealing can be achieved.

Clean recycling streams

Liners have a part to play in achieving a clean recycling stream. From an environmental point of view, the foam backing can be matched to the closure material (for example PE to PE or PP to PP), to allow for the recycling of the final package.

Recycling foil

Also, if the foil sealing any glass containers meets the deadfold test for aluminium (where it creates a crease when folded in half), then it too can be considered to be aluminium and put in the relevant recycling container once removed from the glass jar.

Design flexibility

Foam liners lend themselves to square as well as round cap designs, as the cap orientates to the jar and the seating lugs in it, rather than being screwed on, as with cylindrical containers. With a square cap the liner and cap have to marry exactly and thanks to Selig’s exacting process control, great success has been achieved in delivering high quality square liner solutions for producers from a range of applications.

Induction sealing has a crucial part to play in product shelf-life and integrity. However, to ensure success for each application, no matter where in the world the technology is being used, the factors influencing sealing success need to be understood and factored in. Working with an experienced induction heat sealing supplier can help producers overcome any induction heat sealing pain points and boost a brand’s reputation.

Why not visit www.seliggroup.com to find out how DELTASEAL™ can help remove your induction heat sealing pain points?

DELTASEAL™

Food

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Envasado flexible – El panorama cambiante

Amabel Ryan — Fri, 22 Jul 2022 17:57:18 +0000

PÁGINA PRINCIPAL

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Noticias y documentos técnicos

Envasado flexible – El panorama cambiante

julio 22, 2022

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Alimento, Bebida, Vinos y licores

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Región: Europa

The Growth of Flexibles

We might be forgiven for thinking that flexible packaging is a relatively new concept. However, as far back as the second Century BC, when the Chinese used the bark of the mulberry tree to wrap their food1, flexible packaging has been used to protect and preserve fragile goods. Although plastic was discovered in the 19th Century, it wasn’t until the 20th Century that its potential as a packaging material began to be explored.

Now, packaging is the largest end-user segment for plastic products, accounting for more than 40% of the total plastic usage in the world2. Within this category, flexible plastic packaging is used to protect many products. It is such a versatile packaging solution that the flexible packaging market was valued at USD 230.49 billion in 2020, and it is projected to be worth USD 289.89 billion by 2026, registering a CAGR of 3.89% during the forecast period (2021 – 2026)3.

The reasons for flexible packaging’s popularity are numerous. As a material it is lightweight, durable, cost-effective, and convenient. It also offers producers on-pack design opportunities, cheaper transportation and shelf-life supply chain benefits, as well as consumer health and safety reassurance. However, things are changing for flexible packaging. Some of the main drivers include concern for the environment, the changing face of convenience and technological advances.

All change for flexible packaging?

Increasing concern for the environment – sustainability is now top of consumer concerns when it comes to packaging. With single-use, plastic-based flexible packaging firmly on the consumer watch-list, producers are increasingly having to look at incorporating more recyclable content into their flexible packaging and explore more sustainable biodegradable, compostable, returnable or recyclable solutions.

Convenience drives packaging changes – demand for more convenience is driving design changes in flexible packaging. As a result, pouch packaging and sharing packs are increasing in popularity. As well as being lightweight and an economical way to package specifically tailored servings for snack products, pet foods Etc., the additional ability to add zipped closures makes them appealing single-serve and sharing serving solutions.

Technology augments consumer experience – one of the by-products of the pandemic has been a wider consumer acceptance for scanning QR codes. This, amongst other technologies, is now being used to full effect on flexible packaging to augment the consumer experience. From website to video QR codes, the ability to drive customers to more information about the product is a powerful one that is being experienced by a wider consumer demographic than ever before.

The size of the flexible films market

Demand for polyethylene (PE) flexible films is on the rise and is coming from a number of different sectors – including a sizeable share of food packaging producers.

What Consumers Want

Consumers across the globe want more recyclable packaging. According to those surveyed in the US, Europe, and South America, two out of every three see environmentally friendly, recyclable packaging as important and 74% would pay more for sustainable packaging⁵.

At present, there are many different grades of PE used in food packaging and the challenge for many producers is that flexible plastic packaging recycling rates vary depending on the country and even region that recycling schemes are operating in. At present, flexible plastic packaging recycling rates are relatively low.

Challenges

Recycling rates of plastic packaging waste (including rigid and flexible plastics) in Europe vary significantly, ranging from 26% to 52%6. However, with the introduction of The Directive (EU) 2019/852 on Packaging and Packaging Waste, higher recycling targets per material have been set (50% for plastic packaging by 2025 and 55% by 2030), and a new calculation method of recycling performances has been put in place.

The reason for low recycling rates across many countries can be broadly explained by widespread consumer confusion as to what can and can’t be recycled, multi-layer materials that can’t yet be recycled and limited recycling infrastructures in some regions.

Bridging the gap

According to the European Commission’s New Circular Economy Action Plan7 design is key to sustainability; with up to 80% of a product’s environmental impact determined at the design phase8 and one of the barriers to the expansion of markets for circular products being the complexity of packaging materials. However, transitioning from a linear economy that sees plastic packaging as disposable to a fully circular one needs more than just re-designed packaging, it needs a cohesive recycling strategy that involves many players.

So, how can producers play their part in giving consumers what they want, whilst still delivering light weight packaging that promotes health and safety, is durable and convenient, has graphic impact, can be designed to very specific requirements and offer supply chain benefits?

Packaging focus areas

Building more sustainability into flexible packaging, without compromising material performance, is being approached in several ways at present by producers:

Thanks to country-specific incentives such as the UK’s Plastics Packaging Tax⁹, more recycled plastic content is being introduced
More mono-material constructions are being designed, to improve the recyclability of current packaging options
Suitable markets for flexible biopolymers are being identified at present

As well as continued consumer education, waste collection and materials recyclability need to be developed in parallel. However, with consumers demanding change, how is the flexible packaging used on your product lines being altered to meet this need?

A case in point
With the focus squarely on plastic packaging waste reduction, Selig Flexibles is working with clients to offer them more biodegradable and recyclable flexible packaging solutions. The company’s 84% recyclable flexible plastic packaging is being trialled in companies across Europe at present and has recently been approved for use by a German baby food manufacturer seeking to improve its sustainability credentials.

As the degree of a flexible film’s recyclability is impacted by the type of method used to seal the product and the inks featuring on the packaging’s surface, further trials are underway by Selig Flexibles to achieve recyclability of more than 90%. These will subsequently be certified by RecyClass, to achieve Recycled Content Certification.

As flexible packaging requirements change, getting the right partner has become even more important. And as a customer focused producer, Selig Flexibles offers a customised service, low minimum order quantities and short lead times – for both cold and hot seal packaging.

1. http://ufdcimages.uflib.ufl.edu/IR/00/00/15/24/00001/AE20600.pdf
2. https://www.mordorintelligence.com/industry-reports/plastic-packaging-market
3. ibid
4. https://www.plasticsrecyclers.eu
5. Trivium Packaging and Boston Consulting Group Packaging Report, April 2020
6. Conversio Market & Strategy GmbH
7. https://ec.europa.eu/environment/pdf/circular-economy/new_circular_economy_action_plan.pdf
8. https://op.europa.eu/en/publication-detail/-/publication/4d42d597-4f92-4498-8e1d-857cc157e6db
9. https://www.gov.uk/government/publications/introduction-of-plastic-packaging-tax/plastic-packaging-tax

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Selig nombra a su nuevo Presidente

Amabel Ryan — Thu, 12 May 2022 18:24:00 +0000

PÁGINA PRINCIPAL

/ RECOURSOS /

Noticias y documentos técnicos

Selig nombra a su nuevo Presidente

05/12/2022

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Alimento, Bebida, Químico e Industrial, Cuidado personal

|

Region: AMÉRICA, EMEIA, ASIA-PACÍFICO

Naperville, IL – May 12 – Global packaging solutions provider, Selig Group is pleased to announce that Adam Sheridan will assume the role of President of Selig Group effective June 1st. Selig Group’s President and CEO Steve Cassidy will step away from day-to-day activities as company President, while retaining the role of CEO. Mr. Sheridan’s appointment is part of a managed executive transition coordinated by Steve Cassidy and Bill Crown, Selig’s Chairman of the Board, over the past few years. Mr. Cassidy, having served as President and CEO for the past 19 years, will continue to support the company’s growth and key strategic projects, and remain an active member of the Board of Directors. Mr. Sheridan joined Selig in 2015 as an advisor to the Board and has held the roles of Selig’s Vice President of Corporate Development and Strategy and Executive Vice President / General Manager, North America. Prior to Selig, Adam was a senior member of CC Industries’ Corporate Development team for over ten years. Adam is a graduate of the University of Wisconsin and the University of Chicago School of Business. «Estoy muy ilusionado por dirigir el equipo de Selig y servir a los clientes de Selig», dijo el Sr. Sheridan. “Investing in the team, with safety as a top priority, and a commitment to world class service, quality, and product innovation will remain Selig’s focus. Through strategic sourcing, manufacturing excellence and market knowledge, we will continue to provide the lowest total cost of ownership to our customers. I look forward to spending more time with employees, customers, suppliers, and strategic relationships to enhance Selig’s unique portfolio of technologies and products that serve our customer’s needs across all markets.”

#####

About Selig Group (www.seliggroup.com)

Selig Group is a leading global provider of innovative packaging solutions. The company is the leading global supplier of innovative, technically differentiated container sealing and venting solutions for food, beverage, wine, pharmaceutical, healthcare, personal care and industrial applications. Selig also manufactures a range of technical laminates and flexible packaging products in Europe for these applications. The company’s products are designed to serve customers’ needs for ensuring freshness, providing packaging integrity, extending shelf life, providing tamper evidence, expanding in ecommerce, and protecting brand identity. Selig is headquartered in Naperville, Illinois, USA with manufacturing and distribution locations worldwide.

For further information, contact Selig Communications Department:

Tel: +1 (630) 615-7240

Email: seligcommunications@seliggroup.com

Web: http://www.seligsealing.com

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