[Troubleshooting Case Study] Foaming in the Coating Process
Case Study
Defoaming for All Types of Coating Liquids! Eliminates foam and repellency even in formulations with different components!
Case Summary 【Challenges】 Foaming during coating caused streaks, leading to a decline in paper quality. Excessive addition of defoamer to control foaming resulted in oil spots on the paper surface. 【Solutions】 To address these issues, we conducted a combination of foam suppression tests and repellency (wettability) tests to identify the most suitable defoamer. 【Results】 The optimized defoamer reduced oil spots, eliminated streak formation, and improved repellency, resulting in better paper quality and cost reduction. Example Overview Problem: ・Foaming in coating liquids caused streaks and degraded paper quality. ・Excessive defoamer dosage led to oil spot formation. For more details, please refer to the attached PDF or feel free to contact us.
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Overview ■ Challenge A defoamer with a well-balanced performance was needed — one that effectively suppresses foam without adversely affecting surface wettability (repellency). ■ Solution We conducted a combination of foam suppression tests and repellency (wettability) tests to select the most suitable defoamer formulation. ■ Results Reduction of oil spots (oil dots) Elimination of streaks Improvement of repellency Enhanced paper quality Cost reduction For more details, please refer to the attached PDF or feel free to contact us.
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For more details, please refer to the PDF document or feel free to contact us.
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Company information
We are a chemical company with our headquarters and primary factory located in Osaka JAPAN. NISSIN KAGAKU KENKYUSHO, which translates to NISSIN Chemical Laboratory, was founded in 1931. Since our foundation, we have been a research and development-focused company specializing in surfactants, enzymes, and biotechnologies to address production challenges at various manufacturing sites. We conduct research and develop specialized chemicals tailored to meet our customers' requirements, enabling stable and efficient manufacturing in industries like paper products, textiles, printing, and other processes integral to your daily life. In 1955, the current president's grandfather, along with his father, transformed the company into a joint-stock corporation. Our company operates seven locations in Japan, comprising of two factories, two laboratories, two sales offices, and one sub-branch. Rather than pursuing rapid growth, we emphasize "Permanent Development" and will continue to exert our efforts as a collective of engineers committed to creating completely new value daily, characterized by our quick response and customization.
