Utmost priority of a food manufacturer is to retain its quality until it reaches to its consumer. Seals play an important role in making food contamination free on the other hand user-friendly seal is very important. There are many factors that contribute to delivering successful seals.
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Hot tack tester is used to check the seal strength of the packets when the seal is still hot.The type of food products decides the type of packing it requires. And based on that packing, its sealing process it decided. Sealing is a very crucial process that assures the safety of the products. During the filling process, it is very important to have apt sealing factors so as to have a successful seal. Manufacturers often face a problem of seal breakage during the filling process. This happens due to weak strength when the bonding is still hot and in the process of attaining the room temperature.is used to check the seal strength of the packets when the seal is still hot.
There are certain points to be considered in the filling line make sure that no seals are breaking during the process.
1.
Due to the difference in the polymer structure, there is a difference in behaviour of polymer type. Due to this, there is a difference in the behaviour of the sealant. Thus, the performance of polymer with hot tack and strength of seal may vary. It is very important to identify the properties of the polymer to choose the right sealant.
2.
Sealant selection is a crucial aspect that decides the behaviour of the packet during the filling process. Melt index, density, Zero Shear Viscosity are important considerations.
3.
At what temperature sealant will form the bond with the substrate? This is very important to know so that right sealing temperature can be set.
4.
Hot tack strength can be defined as the force required to break the seal when it is still hot. If this strength is high, the chances of failure are very less. It is an important factor to evaluate the performance of the flexible packing.
5.
Dwell time is the period required by the sealant to form the bond. The shorter the dwell time is, the better is the seal quality. But it should not be compromised with the seal quality. It is often noticed that shorten dwell time may result in weak seal strength. So there has to be a balance between the both.
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What does a Hot Tack Tester can do?
Hot tack tester is the instrument which is used to measure the hot tack seal strength i.e. the strength of the seal when it is still hot. Presto is the leading manufacturer and supplier of seal testing machine and offers a highly standardised and precise testing machines for flexible packings.is the instrument which is used to measure the hot tack seal strength i.e. the strength of the seal when it is still hot. Presto is the leading manufacturer and supplier of seal testing machine and offers a highly standardised and precise testing machines for flexible packings.
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Vived Management (Belgium) took over the J&B hottack business in and are now exporting the latest and improved model HTMB Worldwide.
The J&B Hottack tester has helped businesses getting better results in R&D and QC for over more than 25 years. Experience in R&D, designing and development of measuring equipment has resulted in a range of instruments for the flexible packaging industry. That helped a lot in setting the new standards for unique set up, control and sealing performance with the improved J&B Hottack tester.
The HTMB can automatically measure the heat sealing properties of heat sealing packaging materials in an accurately controlled environment. It is the ideal instrument for producers of raw materials, packaging material manufactures, semi-finished material producers and research laboratories. An extensive range of adjustable parameters enables the user to test various materials such as flexible films and coated paper, thicker laminates and even 2 different kind of samples. The HTMB leverages all of the reliable aspects of its predecessor while updating the functionality of its design with an assortment of significant new features.
Advanced new features include maintenance free; hot tack, peel only, seal only and rigid sample mode (rigid sample mode optional); pneumatic software-controlled protection plates for easy cleaning; minimum sample size 250 mm; maximum peeling distance 130mm; optional sample feeder for automatic measurements; optional peeling speed up to mm/s and more.
One of the biggest advantages of J&B Hot Tack tester is the automatic sample feeder option, as it has the benefit of measuring several measurements automatically without the need of an operator.
Multiple measurements can be done automatically, depending on the length of the samples which you can cut yourself very easy and without the need of expensive cutting tools. Vived is going to launch this year a ample cutter, vwhich is efficient and easy to operate.
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