Alta y Baja Densidad S.A. is a plastic bag factory with a wide experience of more than 30 years, which nowadays has changed its name to (Plásticos AyB Densidad S.A) due to a generation change.

We have full-automated facilities, which are settled in the middle of the Iberian Peninsula and have a production capacity of 3.000.000 Kg per year. The high quality and the perfect finish are our priority. We produce following the UNE-EN-ISO9001:2015 norm, and it is a guarantee of our production system, what ensures to our clients the accuracy of the production process.

We transform polyethylene, either in mid and low density, with production of film with any characteristic (measurement, thickness and color), and as finished product, either anonymous as printed bags.

We are specialized in the production of waste collection bags of every kind (hospital, urban, etc.); bags for food use; Bags of special dimensions such as the hospitality sector (glass, hygienic strips, bath seals, laundry, etc.); Shrinking film; Tarpaulins for the building sector. Everything with the aim of covering the needs of our clients. We are suppliers of the most important companies in the country.

This factory consists of three very different segments, to ease the production and to carry out a better monitoring and control in the quality:

  •  Main section: Extrusion of polyethylene.
  •  Serigraphy and Printing section.
  •  Cutting and tailoring section.

Our products have the quality certification ISO 9001:2015, registered with the firm EQA, which guarantees both the quality of our product and the effectiveness of our service.

As direct manufacturers we can carry out a study of the models of bags that you consume, to offer you the most suitable products according with your necessities, with the subsequent costs saving and quality and service improvements. We can even manufacture the same product with biodegradable or ecological raw materials, thanks to the technology developed by our R&D department.

We work with reusable raw materials of first class and high resistance, with an exhaustive quality control, being all our products fully recyclable, maintaining our commitment with the environment protection.