Chatter on a Yankee is a result of multiple process and mechanical issues in the manufacturing of tissue that cause the doctor blade to skip or flex, and eventually bounce on the dryer surface digging into the metal and leaving chatter marks.

Recycled fibers are critical for sustainable paper and board production, but they are often contaminated with stickies and waxes from adhesives.

Mills incorporating waste paper in their process has since long struggled with many different issues. The more obvious are the actual contaminants accompanying the waste paper.

Kimberly Clark Mexico operates many tissue mills in Mexico; one of them is located in Orizaba. As phase I of a major machine rebuild, KCM decided to replace one of their Yankee steam cylinders and simultaneously install a new state-of-the-art Yankee hood, process air systems and full heat recovery systems.

More vacuum alone may not be the answer

Hybrid structured tissue is a term that has risen to describe the latest iterations of structured tissue machines which forego the through air dried sections of the dominant structured platform approach. 

The previous chapter highlighted the history and safety of paper machine ceramics. This chapter covers common ceramic failures and causes.

The use of ceramics on dewatering elements in the forming and press section of a modern-day paper machine was introduced over 60 years ago.

Benchmarking is a continuous improvement tool for comparing the effectiveness of product lines within your company or the effectiveness of your product lines against competitors near and far.

Spring failures can occur in some manufacturer’s float level control pressure powered pumps due to harsh environments and repeated cycling. The three main causes of spring failure are chloride stress cracking, contaminants, and work hardening.

A supply shortage of good and white conventional recycled papers can be felt in Europe and in many other places around the world. For different reasons concerning market evolution, this situation is expected to stay the same or even worsen in times to come. This has pushed the market to seek out alternative fibers.

Building ventilation systems that are poorly designed or lack the required capacity will often result in corrosion of the building structure and equipment, potentially unsafe working conditions and a negative impact on production. Let’s review building ventilation solutions for today’s paper mills.

Engraving Solutions, the Körber Group company that specializes in designing and engraving embossing rolls, presents two innovative services that meet tissue manufacturers’ demand for products with a low environmental impact.

ANDRITZ helps you boost production

In a previous article I mentioned filtration. It was the first part of a small excursion into the world of compressed air preparation... Today, we will move on to the second stage of our trip: regulation.

In today’s world of electrical energy, paper mills and box plants still prefer steam to deliver heat energy to their processes. To understand why steam technology remains the most effective process heat source for paper mills, box plants and many other process industries, it’s useful to understand its intrinsic benefits.

Paolo Bergadano, Mechanical Maintenance Engineer at Smurfit-Kappa Verzuolo, often encountered problems with the extraction of the coarse screen basket.

A corrugated box plant in the Midwest struggled with its turndown capability in the hot plate section.

Pulp and paper producers are under constant pressure to reduce production and maintenance costs, maximize uptime and maintain high quality.

Good runnability means continuous machine operation with minimal web breaks, while machine productivity and the amount of waste stay at the desired level.

The paper industry is going through a multi-faceted transformation. It is not only about digitalization, workforce trends and switching to a more innovative or sustainable culture, but also about building on global networks.