Technical Criteria and Sustainable Practices to Optimize Production and Reduce Environmental Impact

by Marco Arezio

Recycled cardboard cores for paper mills are a crucial component in the production process of these companies, providing the necessary support for winding various types of paper.

Choosing the right supplier and the technical specifications of recycled cardboard cores can significantly affect operational efficiency, the quality of the final product, and the environmental impact of the company.

Therefore, it is essential to carefully consider the technical characteristics, customization options, and sustainability criteria when selecting a supplier of cardboard cores.

Technical Criteria for Choosing Recycled Cardboard Cores for Paper Mills

In the selection of recycled cardboard cores for paper mills, it is essential to consider a series of technical criteria that determine the suitability and efficiency of the product within the production process. These criteria must be carefully evaluated to ensure that the cores meet operational needs and contribute to the quality of the final product.

Compression Resistance

Compression resistance is a fundamental parameter for recycled cardboard cores, which must support the weight of the wound paper without deforming. This parameter can be measured through axial compression tests that evaluate the core's ability to maintain its shape under load. Cores with high compression resistance avoid deformations that can compromise the integrity of the paper roll.

Straightness

The straightness of recycled cardboard cores directly affects the uniformity of the paper winding. The cores must maintain a straight shape to prevent irregularities in the paper roll. Straightness can be evaluated using optical or mechanical measuring instruments that detect deviations along the longitudinal axis of the core.

Diameter Uniformity

Consistency in diameter along the entire length of the core is crucial for interaction with winding and paper processing equipment. Variations in diameter can cause alignment and tensioning problems. Dimensional precision of the cores is ensured through rigorous process controls and measurements with high-precision instruments, such as laser calipers.

Dynamic Robustness

Dynamic robustness is the ability of recycled cardboard cores to withstand mechanical stresses during transportation and use. This characteristic is evaluated through impact and flexion resistance tests, simulating the transportation and handling conditions the cores will face. Cores with high dynamic robustness prevent damage and deformations during these stages.

Quality of Raw Materials

The choice of raw materials is fundamental for the overall quality of recycled cardboard cores. These must be made from high-quality recycled cardboard, ensuring strength and durability. The properties of the raw materials, such as density, fiber composition, and adhesive used, are crucial for achieving the desired performance.

Torsion Resistance

Torsion resistance is important to prevent deformations during use, especially when the cores are subjected to torsional forces during the winding and unwinding of the paper. This parameter can be tested through controlled torsion tests that measure the core's ability to maintain its structural integrity under torsional stress.

Moisture Resistance

Moisture resistance is essential for cores used in environments with varying humidity levels. The cores must maintain their rigidity and shape even in humid conditions, preventing absorption that could compromise their performance. Specific treatments of the cardboard, such as waterproof coatings, can improve this characteristic.

Sustainability of Cardboard Cores for Paper Mills

Sustainability has become an essential component in the production and use of cardboard cores for paper mills. This chapter explores in detail the practices and criteria that companies must consider to ensure that cardboard cores contribute to more sustainable production, reducing environmental impact and complying with current environmental regulations.

Environmental Regulations and European Directives

One of the main regulations influencing the production of cardboard cores is the EU Directive 2018/852, which promotes the reduction of waste and the increase of recycling practices. This directive is part of a broader legislative framework aimed at encouraging the efficient use of resources and reducing the environmental impact of industrial products.

Use of Recycled Materials

The use of recycled cardboard for core production is a key practice for sustainability. Recycled cardboard is obtained from previously used paper and cardboard, reducing the need for new raw materials and the environmental impact associated with the production of virgin paper. Using recycled materials not only reduces waste but also energy and water consumption, cutting CO₂ emissions associated with production.

Benefits of Using Recycled Cardboard

Waste Reduction: Reusing previously used paper and cardboard reduces the amount of waste sent to landfills.

Energy Savings: Producing recycled cardboard requires less energy than producing virgin cardboard.

Conservation of Natural Resources: Reduces the demand for wood, preserving forests and natural ecosystems.

Less Pollution: Producing recycled cardboard generates fewer CO₂ emissions and other pollutants.

Eco-Friendly Production Processes

The production processes of cardboard cores must be optimized to minimize environmental impact. This can include the adoption of low-energy technologies, the use of renewable energy, and the implementation of efficient waste management systems. Companies can obtain environmental certifications, such as ISO 14001, to demonstrate their commitment to sustainable practices.

Sustainable Technologies and Practices

Renewable Energies: Use of renewable energy sources, such as solar or wind, to power production processes.

Energy Efficiency: Implementation of technologies and processes that reduce energy consumption, such as using high-efficiency motors and heat recovery systems.

Emission Reduction: Use of filters and other technologies to reduce CO₂ and other pollutant emissions.

Waste Management: Recycling and reusing production waste programs to minimize waste sent to landfills.

Eco-Compatible Treatments

The treatments used to improve the characteristics of cardboard cores, such as moisture and torsion resistance, must also be eco-friendly. The use of water-based adhesives and coatings, free of harmful solvents, helps reduce environmental impact. Additionally, such treatments must be easily recyclable, ensuring that cardboard cores can be recycled at the end of their life cycle.

Circular Economy

The circular economy approach is fundamental for the sustainability of cardboard cores. This economic model aims to keep materials and products in use for as long as possible, reducing waste and optimizing resource use. For cardboard cores, the circular economy involves:

Design for Recyclability: Cores must be designed to be easily recyclable at the end of their life cycle.

Extended Life Cycle: Improving the durability of cores to prolong their use and reduce the frequency of replacement.

Recovery and Recycling: Implementation of systems for recovering used cores and recycling them into new products.

Conclusions

Choosing recycled cardboard cores for paper mills requires a thorough evaluation of technical characteristics to ensure efficiency and quality in the production process. Compression resistance, straightness, diameter uniformity, dynamic robustness, raw material quality, torsion and moisture resistance, and compliance with sustainability standards are essential criteria for selecting cores that adequately meet the operational needs of paper mills.

The sustainability of cardboard cores for paper mills requires an integrated approach that considers the entire product life cycle, from raw materials to production, use, and disposal.

The adoption of recycled materials, eco-friendly production processes, eco-compatible treatments, and circular economy principles are all key elements to minimize environmental impact and promote more sustainable production. Additionally, commitment to social responsibility and compliance with environmental regulations contribute to creating a more responsible and environmentally conscious industry.