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A.Celli and Saueressig Unveil New Technological Collaboration

A.Celli and Saueressig have partnered to develop the VoluMAX3 3D embossing and aperturing line, a breakthrough solution for hygiene nonwovens production. This advanced system combines in-line slitting winding with high-speed processing capabilities up to 600 mpm, delivering enhanced efficiency and product performance for absorbent hygiene products. The collaboration integrates A.Celli's expertise in unwinding and web handling with Saueressig's embossing technology, creating a flexible, easy-to-maintain solution that meets stringent safety and environmental standards while optimizing liquid absorption and skin comfort for next-generation hygiene materials.

Rewet suppression through press felt engineering, TAPPI Journal June 2022

ABSTRACT: Due to the immense energy and associated financial cost of drying paper, achieving a drier web entering the dryers is a key objective in paper manufacture. One major research thrust has been finding a way to increase press solids by mitigating or eliminating rewet in the press section. For decades, solutions to this problem have remained elusive. In this work, we develop a novel approach that significantly reduces rewet by rupturing the liquid channels between felt and web. We illustrate the effects that altering the mechanical and surface properties of the press felt matrix have on the stability of these liquid channels. In a laboratory-scale platen press, a 40% reduction in the residual water of 120 g/m2 southern bleached softwood kraft (SBSK) pulp handsheets after pressing was observed, corresponding to an increase in press solids from 48% to 61%. For reference, pressing under identical conditions with paper blotters, in which minimal rewet is presumed to occur, resulted in 64% solids. Furthermore, we observed enhanced dewatering across a range of basis weights, applied pressures, and felt types. In addition to measuring the solids content of pressed sheets, we capture and analyze video evidence of the mechanisms at play in our improved dewatering technology.

Development of a fast brightness testing method for mechanical pulp based on microwave oven drying, TAPPI Journal June 2020

ABSTRACT: Brightness is an important quality parameter for pulp products, and it is important to have reliable measurement of pulp brightness in a timely manner for process control and/or quality control purposes. In these circumstances, a quick testing method for pulp brightness is highly desirable.A rapid handsheet brightness testing method for lignin-rich mechanical pulp has been developed, which is based on the use of tap water to make handsheets and microwave ovens to rapidly dry the handsheet. Microwave oven fast drying decreased the handsheet brightness of mechanical pulp by 5•6 points due to the lignin-originated discol-oration reactions. The spray of ascorbic acid and ethylenediaminetetraacetic acid (EDTA) solutions to the handsheet can effectively inhibit these lignin discoloration reactions.With 0.2% ascorbic acid and 0.2% EDTA spraying on the wet pulp handsheet, the brightness of the handsheet from a peroxide-bleached stone groundwood pulp after the microwave oven fast drying method was similar to that obtained from the same pulp but following TAPPI Standard Test Method T 272 sp-12 “Forming handsheets for reflectance testing of pulp (sheet machine procedure)”. The effect of handsheet dryness on the handsheet brightness was also studied, and the results showed that the brightness reading was almost constant in the dryness range of 70% to 90%. The method developed is a reliable, fast brightness testing method for lignin-rich pulp that is of practical interest in industrial operations.

Multilayering of conventional latex-based dispersion coatings containing small amounts of silica nanospheres: Runnability on a pilot scale flexographic coater and barrier performance, TAPPI Journal November 2023

ABSTRACT: The addition of functional coatings to packaging materials is a key requirement for increasing their performance and creating innovative packaging solutions. Flexography, a cost-effective printing method commonly used to print information and graphics directly onto a wide variety of packaging substrates, shows good potential for applying functional coatings. In this study, conventional clay-latex coating formulations containing approximately 1.3 wt% silica nanospheres were applied to a linerboard using a pilot scale flexographic printing web press. The performance of multilayered silica nanosphere-based coatings was compared with conventional coatings containing talc and/or wax dispersion in terms of coating grammage, runnability, and barrier performance. Coating grammage increased with an increased number of coating layers and a significant decrease in both the water vapor transmission rate (WVTR) and the direct water uptake of water (Cobb 120 wettability test) was observed for coatings containing silica nanoparticles. In general, the silica nanosphere-based coatings performed better than talc-based coatings. Talc/wax-based coatings had the highest variation in surface roughness due to an uneven distribution and variations of coating layers.

Denso Introduces Comprehensive Viscotaq Tank Base Corrosion Protection System for the Pulp and Paper Industry

Cascades and Its Employees Win a Host of Awards

Duni Group Behind Munich’s Circular Initiative

Tetra Pak Invests €60 Million in Owned Pilot Plant to Advance its Paper-Based Barrier Technology Development

Metsä Board Introduces a New Product and Service Concept for Fast Moving Brand Packaging in Europe

Metsä Board, a leading European producer of premium fresh fibre paperboards, is launching MetsäBoard Pro FBB Go – a new folding boxboard designed for demanding food and pharmaceutical packaging – together with a fast and predictable custom-cut sheet delivery solution for the European market.

Dow and RDM Group Collaborate on an Innovative Fibre-Based Food Packaging

Dow (NYSE: DOW), a global materials science company, and RDM Group, a leading producer of recycled cartonboard, today announced the launch of Multiboard CirculaRR, a breakthrough solution that advances circularity in food barrier packaging. The innovation is suitable for food-contact applications, including frozen foods such as fish and cakes as well as fruit trays or dry pet food.