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Field Report - Minimizing paper curl

Field Report - Minimizing paper curl

Paper curl is critical for many grades of paper, such as copy machine paper, papers that get coated and printed on and multi-layer paperboard grades.What causes curl and how can it be minimized?

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Easier boiler outages with Liquor to Liquor Shutdown Service

Easier boiler outages with Liquor to Liquor Shutdown Service

Planning and executing a boiler outage can be a major challenge. Valmet has created a new lean concept for liquor to liquor recovery boiler outages that is easy, fast and trouble-free.

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Enhanced steaming provides better chip impregnation, case study

Enhanced steaming provides better chip impregnation, case study

When entering the chip bin, about one third of a chip's volume is air. In order for the white liquor to impregnate fast and evenly, the chips must be well steamed and the air content as low as possible.

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Helpful tips on retention chemistry, coagulants, starch, etc.

Helpful tips on retention chemistry, coagulants, starch, etc.

Most microparticle systems are based on anionic products, silica, micropolymers and bentonite. Retention aid systems involve coagulants, macroflocculants and microflocculants.

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Presentations from Valmet Technology Webinar at PaperCon 2017

Presentations from Valmet Technology Webinar at PaperCon 2017

Paper- and board-makers are invited to a free technology webinar on Monday, May 24. As part of Valmet's activities at PaperCon 2017, we will broadcast our Technology Seminar via a webinar. Valmet experts will be on hand for in-person and virtual Q&A after the webinar.

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LignoBoost plants produce large volumes of lignin, case studies

LignoBoost plants produce large volumes of lignin, case studies

LignoBoostâ„¢ is a complete system, exclusively available from Valmet, which extracts lignin from Kraft black liquor. The first two commercial installations are up and running, producing high-quality lignin.

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Calender case study - CD caliper control & sheet breaks

Calender case study - CD caliper control & sheet breaks

A southern USA mill requested Valmet expert assistance, specifically a process and condition audit of their online single nip calender.

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High quality Valmet Filter Bags improve power plant filtration

High quality Valmet Filter Bags improve power plant filtration

Valmet Filter Bags provide superior performance and durability in demanding baghouse conditions.

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Valmet Coater Blades eC and nC for challenging coating positions

Valmet Coater Blades eC and nC for challenging coating positions

Valmet Coater Blades eC and nC overcome the many challenges in blade coating, including paper quality variations, short blade life, the high cost of blades and frequent blade changes.

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Air Dryer Nozzle Upgrade saves energy at Ishinomaki, case study

Air Dryer Nozzle Upgrade saves energy at Ishinomaki, case study

In addition to reducing related energy consumption by ~20%, the new PowerFloat Plus air dryer nozzles improved drying capacity and sheet runnability at Nippon Paper's Ishinomaki mill.

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