Enhance Your Paper Coating Processing Through Industry-Leading Milling, Mixing, and Dispersion Equipment

Paper coatings, which are composed of pigments, binders, additives, and solvents, are a key component of many paper products and enhance properties such as smoothness, gloss, and printability. The particle size distribution of paper coatings significantly influences your paper’s quality and performance. A controlled particle size distribution creates a uniform coating, improving printability and appearance and impacting rheological behavior, while a wider range can cause unwanted viscosity variations and frustrating challenges in maintaining consistent coating thickness.

Closely managing particle size ensures that your desired viscosity and rheology are achieved for optimal application. A narrow distribution guarantees even particle distribution, providing an appealing paper surface for the finished product. Binders controlling particle size encase pigments, boosting the coating’s integrity, adhesion, and durability. Smaller particles enhance light scattering for opacity and brightness, aiding optical properties, and optimized distribution allows proper ink penetration, refining color reproduction and print quality. Finally, smaller particles can prevent the defects and weak paper bonding that can result from uneven drying due to varied particle sizes. The greater consistency of smaller particles ensures more reliable outcomes.

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Industry Benefits

  • Paper Coatings

    Paper coatings enhance paper products’ properties with pigments, binders, and additives. Particle size distribution affects quality, influencing smoothness, gloss, print, and ink adhesion within these coatings. Better particle control ensures uniformity, optimal application, and improved print quality.

  • Adhesive Resins

    High-quality adhesive resins keep paper coatings in place. Ensuring smaller particles means they disperse uniformly, enhancing adhesive resin distribution for more consistent coatings. Improved resin adhesion bolsters your coating’s integrity, even under deformation, and the increased surface area from finer particles fosters flexibility and clarity.

  • Temperature Sensitive

    Thermal responsiveness is important to the paper coating process, especially in thermal printing and thermochromic labels. Particle size affects thermal responsiveness because finer particles provide an increased surface area, enabling quicker and more sensitive temperature responses. Smoother coatings can make a big difference with temperature-sensitive materials and yield more crisply printed images.

Featured Industry Solutions

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Milling, Mixing, and Dispersion Equipment for Paper Coating Manufacturers

Hockmeyer is a trusted partner for businesses seeking high-quality solutions in particle size reduction, dispersion, mixing and milling, and other process requirements. With its range of industry-leading equipment and wealth of experience, the company has a rich history of excellence and has solidified its place at the forefront of the paper coatings industry by prioritizing customer satisfaction and innovation.

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At Hockmeyer, we're committed to making your product the highest quality possible, whether you need milling, mixing, dispersion or agitation. Schedule your product to be tested in one of our demo machines and see the Hockmeyer difference for yourself.


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    Field Training & Support

    Hockmeyer is dedicated to providing best-in-class support to maintain the lifespan and efficiency of your Hockmeyer equipment.

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    Equipment Support Program

    Learn about how Hockmeyer can provide dedicated service, maintenance, and training through our Equipment Support Program.

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    Customer Testing-Applications Lab

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Paper Coating Processing Frequently Asked Questions

  • How can Hockmeyer’s equipment assist in the paper coating manufacturing process?

    Hockmeyer’s rapid flow and recirculation technologies play a crucial role in the dispersion process, ensuring the consistent and tight particle size distributions that are vital for maintaining high product quality in paper coatings. Machines like the HCP Immersion Mill, the HHL line of dispersers/mixers, the HCP Immersion Mill, and the HVI Hoist Mounted Disperser are all great options for manufacturing paper coatings. Furthermore, Hockmeyer’s innovative equipment improves efficiency, overall operational effectiveness, and productivity by drastically reducing process times.

  • Do you provide testing for your paper coating processing equipment?

    Yes! We understand that the process of finding the right equipment can be challenging, so we have equipped our testing facility with laboratory and scalable pilot models of our most popular offerings. We also offer free initial testing to help you evaluate the performance of the equipment and find the paper coatings solution that best fits your needs.

  • Why is the paper coating process important?

    Coatings are applied in layers of different substances to improve qualities like printability, smoothness, gloss, and durability, and the paper coating process is vital for enhancing the finished product’s properties and performance for specific uses. The process involves several steps, including coating formulation preparation (mixing pigments, binders, additives, and solvents to create a coating mixture), mixing and dispersion to ensure a uniform mixture to prevent clumping or settling, and applying the coating using methods like roll coating, blade coating, air knife coating, or size press coating based on thickness, paper type, and formulation. The process is completed through drying or curing, which removes solvents and enhances binder adhesion and durability through drying or chemical reactions.

  • What are the particle coating methods in the paper coating manufacturing process?

    Particle coating methods are vital in paper coating manufacturing, providing various techniques for enhancing paper properties and achieving specific effects on the paper’s surface. Air knife coating uses controlled air to deposit particle-laden fluid uniformly onto the paper. This method ensures even coatings with controlled thickness. In press coating, the paper passes through a particle-laden liquid bath that enhances properties like smoothness and printability. Spray coating involves dispersing particles in liquid and applying the mixture with precision. This method is versatile, allowing for textured surfaces and visual effects. Gravure coating employs engraved rollers to transfer the coating, providing high-quality, consistent fine coatings.

    Other methods include offset printing with dry powder, which modifies offset presses to apply powders, adding specific visual effects to printed materials. Electrostatic coating charges particles and applies them using an electric field, a process that is useful for toner-based printing and textures. Finally, hot melt coating melts solid coatings, applying them as a fluid that solidifies upon cooling, serving various applications.

A Hockmeyer employee reviewing testing results.

Test Your Product Free. Schedule a Test Today!

At Hockmeyer, we're committed to making your product the highest quality possible, whether you need milling, mixing, dispersion or agitation. Schedule your product to be tested in one of our demo machines and see the Hockmeyer difference for yourself.

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