How to Perform the "Dye Test" for Perfectly Sealed Cartons

Sealing is an essential operation in carton packaging to prevent leaks and reduce client returns.
The following video, accompanied by some technical information, explains how to perform this operation in the most accurate manner.
The most common way to test package sealing is called Dye Test.
The test is performed using a special solution composed by highly penetrant liquid chemicals. As Galdi technicians recommend, the test should be run every 30 minutes of machine operation both on the bottom and on the top of carton.
Needless to say, the more often the test is run, the lower the risk of leaks and the number of returns will be.
Testing package sealing is easy and requires four steps:
1. Cartons are prepared by cutting the top and bottom
2. Dye Test: a coloured penetrant liquid is poured into the cartons and is allowed time to soak into any surface flaws
3. Cartons are washed with water and dried
4. Cartons are completely opened and inspected to detect any surface penetrations
The video displays the four steps in detail, as well as a fifth one: Galdi technicians training operators. Indeed, this additional step is essential to transfer our highly specialised know-how and very useful for clients to anticipate and solve any problems in full autonomy.
Testing carton sealing is an extremely important procedure, as product leaks may happen several days after packaging, caused by the product volume exerting pressure on the bottom of cartons.
If the filling machine hasn't sealed the cartons correctly, the liquid may find some cracks on the package surface and therefore leak.
We hope that our clients will find this short explanation useful, although it represents only a fraction of the know-how we regularly share with them.
This is our way to be always on our clients' side, offering them our best training and ensuring their satisfaction.
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ABOUT GALDI SRL
With over 30 years of experience and more than 700 machines running all over the world Galdi has become a leader in engineering and manufacturing filling machines for gable-top cartons with a special focus on filling techniques for fresh and ESL dairy products and fruit juice.
Galdi operates worldwide and collaborates with packaging multinationals and global players on the lookout for the best solutions to optimize its products and meet customer needs.
WHAT WE OFFER
• Extremely accurate filling machines designed to the highest quality standards
• A wide range of output capacities and configurations
• Tailor-made solutions
• Efficient pre and after sales support.
OUR MISSION
Galdi offers high added value solutions for the packaging and filling of milk - dairy and fruit juice products. We’re focused on total quality and always have customer satisfaction in mind.
OUR MACHINES
The RG Series includes machines designed for filling liquid food such as fresh and ESL milk-based products and fruit juice into gable-top cartons. The main benefits provided by Galdi’s RG Series are:
• Extremely flexible, accurate, user-friendly management
• A wide range of options and output capacities
• Designed to the latest standards of technology, ergonomic and safe operation
• Fully customizable according to product characteristics and package configurations
• Easy to clean and designed with high sanitary standards (35% peroxide disinfection of cartons in the Ultra-Clean version).
AFTER-SALES SERVICES
Maintain productivity ratios and boost the efficiency of your equipment with the support of Galdi’s expertise.
PMP : The preventive maintenance practice helps you improve and support system performance and reduce the risks of unexpected breakdowns and related costs.
Spare Parts: Galdi’s spare parts store meets your spare parts
requirements regarding the machines currently in production, as well as parts subject to wear on older models up to ten years after the relevant machines have been discontinued.
Upgrades: New implementations responding to the need to keep your fillers steadily up to date and working at their full potential.
TRAINING
Specific educational and training programmes are developed to allow operators to fully understand the potential of Galdi fillers. Galdi’s experienced staff will show you how to achieve maximum expertise in guaranteeing high-performing systems and provide the necessary knowledge and skills in tailored training programmes.
Operator Training: This training will help you to consolidate your knowledge of ordinary duties including production start-up, cleaning, and packaging tests.
Maintenance Training: The aim of this training is to implement the know-how necessary to ensure safe and efficient machine maintenance. This will help you reduce maintenance costs and production breakdowns and improve performances.
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GALDI Srl
Via E. Fermi, 43/B
31038 Paese (TV) Italy
Tel.: [phone]
Fax: [phone]
[e-mail]
www.galdi.it