SRF new algorithm for Hungary plant: isotropic metalization
SRF metallizer facilities

December 20, 2021

After successfully installing the FILTRO – Slitting optimizer, INFORMA is proud to announce new mathematical algorithms to solve an NP-hard problem.

The new algorithm is facing a widespread BOPET quality product like isotropic. FILTRO was already able to take care of this constraint on the primary slitter, but it did not consider the following metallization phase.

The result: Informa proposed SRF a collaboration to improve this vital scenario. Today, we are very proud to say that the new algorithm improves the solution in terms of isotropic output.

INFORMA wants to thank SRF for executing many test cases to certify the excellent quality of the new algorithm.

Isotropic PET Film Market: Overview

Isotropic PET film is primarily used for lidding applications. For this reason, the food and beverage industry uses isotropic PET films to package food products to keep them durable and safe. Isotropic PET film is also known as biaxially oriented polyester film. Due to this feature, isotropic PET film has desirable characteristics such as superior thermal stability, crack resistance, gloss, and medium barrier. For example, ice cream products are packed in the isotropic PET film due to their thermal stability. Additionally, isotropic PET films are transparent and glossy, thus providing an on-shelf display, and consumers can also view the product before purchasing. Lastly, the long-lasting feature of isotropic PET film helps to sell and preserve the products for a long time without worrying about the condition of the products in the packages


  1. Transparency and Market Research. Isotropic PET Film Market – Global Industry Analysis, Size, Share, Growth, Trends and Forecast 2018 – 2026. Retrieved from



FILTRO is a combinatorial solver. The software considers the process and machine constraints, and it is fully integrated with the TANGRAM Suite (Scheduling. and M.E.S.)

• minimization of trim and setup waste – Primary slitter
• maximization of intermediate roll widths
• minimization of Metalizer/Secondary slitter trim/setups
• multi-width optimization
• isotropic optimization
• defect optimization
• cardboard core optimization
• integration with warehouses



Since 1986, INFORMA has been fully dedicated to studying and solving optimization problems in production planning, specifically for manufacturing and distribution companies.

INFORMA has become highly specialized in optimizing the cutting of materials, scheduling the production planning to order confirmation, transportation planning, and truck/container loading for goods delivery


About SRF

SRF is one of the largest manufacturers of a spectrum of standard and speciality Bi-axially Oriented Polyethylene Terephthalate (BOPET) and Bi-axially Oriented Polypropylene (BOPP) films in the world.

SRF Limited is a multi-business chemicals conglomerate manufacturing industrial and speciality intermediates. The company’s diversified business portfolio covers Fluorochemicals, Specialty Chemicals, Packaging Films, Technical Textiles, Coated and Laminated Fabrics. It is anchored by a strong workforce of 7,000 employees from different nationalities working across eleven manufacturing plants in India, Thailand, South Africa, and Hungary. The company exports to more than 90 countries.

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