Edwin Sutermeister (1876–1958): The Chemist Who Defined Modern Papermaking
In the early 20th century, the manufacturing of paper was transitioning from an ancient, secretive craft into a rigorous industrial science. At the forefront of this transformation was Edwin Sutermeister, an American chemist whose research provided the foundational blueprints for the modern paper industry. While his name may not be a household word, anyone who has ever handled a high-quality coated magazine or a durable book has benefited from his technical innovations.
1. Biography: From MIT to the Maine Woods
Edwin Sutermeister was born on November 29, 1876, in Milton, Massachusetts. He was the son of Arnold Sutermeister, a Swiss-born architect and Civil War veteran. Edwin’s academic journey led him to the Massachusetts Institute of Technology (MIT), where he graduated in 1899 with a degree in Chemistry.
Immediately following graduation, Sutermeister joined the S.D. Warren Company in Cumberland Mills, Maine. At the time, S.D. Warren was one of the premier producers of high-quality coated papers in the United States. Aside from a brief three-year hiatus (1907–1910) spent at the U.S. Forest Service in Washington, D.C., where he worked on early forestry products research, Sutermeister spent his entire 55-year career at S.D. Warren. He eventually rose to the position of Chief Research Chemist, retiring in 1954. He passed away on July 30, 1958, in Westbrook, Maine.
2. Major Contributions: Turning Craft into Science
Before Sutermeister, papermaking relied heavily on "rule of thumb" methods passed down through generations. Sutermeister introduced analytical chemistry to the mill, focusing on several key areas:
- The Sutermeister Stain: Perhaps his most enduring technical contribution, this is a chemical reagent (a mixture of iodine, potassium iodide, and calcium chloride) used to identify and distinguish between different types of wood fibers under a microscope. By observing the color changes in the fibers—ranging from yellow to blue-violet—chemists could determine whether a paper was made from mechanical groundwood, chemical softwood, or hardwood pulps.
- Casein and Coatings: Sutermeister was a pioneer in the use of casein (a protein derived from milk) as an adhesive for paper coatings. His work allowed for the creation of smoother, more receptive surfaces for the high-speed printing presses that were emerging in the 20th century.
- Sizing and Bleaching: He conducted extensive research into the chemical "sizing" of paper (the process that prevents ink from spreading or soaking through) and refined the bleaching processes that allowed for the mass production of bright white paper.
3. Notable Publications
Sutermeister was a prolific writer who believed that industrial knowledge should be shared to advance the field. His books became the "bibles" of the paper industry.
- Chemistry of Pulp and Paper Making (1920): This was the first comprehensive English-language textbook on the subject. It went through several editions and remained the standard reference for students and professionals for nearly half a century.
- Casein and Its Industrial Applications (1927; revised 1939): This work established the chemical parameters for using milk proteins in industrial settings, extending beyond paper to plastics and adhesives.
- The Story of Papermaking (1954): Written toward the end of his life, this book was an accessible history of the industry, blending his technical expertise with a storyteller’s touch.
4. Awards & Recognition
Sutermeister’s peers recognized him as a titan of industrial chemistry:
- TAPPI Gold Medal (1935): The Technical Association of the Pulp and Paper Industry (TAPPI) awarded him its highest honor for his
"outstanding contributions to the technical progress of the pulp and paper industry."
He was only the fourth person to receive this prestigious award. - Honorary Doctorate (1948): The University of Maine conferred upon him an honorary Doctor of Science degree in recognition of his role in advancing the state's most vital industry.
- Legacy induction: He is a member of the Paper Industry International Hall of Fame (inducted posthumously in 2001).
5. Impact & Legacy
Sutermeister’s legacy is defined by the professionalization of the paper industry. Before his tenure, mills were often chaotic environments where "batches" of paper could vary wildly in quality. Sutermeister’s insistence on chemical testing and standardized formulas ensured that paper could be manufactured with scientific precision.
His research into fiber analysis remains relevant in the fields of forensics and art conservation. When historians or forensic scientists need to date a document or identify a forgery, they still use the principles of fiber staining and analysis that Sutermeister perfected in the early 1900s.
6. Collaborations
Sutermeister worked closely with the Technical Association of the Pulp and Paper Industry (TAPPI), of which he was a founding member. He was a frequent collaborator with other pioneers of the era, such as Arthur D. Little, another MIT alumnus who championed industrial research. Within the S.D. Warren Company, he acted as a mentor to decades of young chemists, instilling a culture of rigorous data collection that made the Cumberland Mills laboratory one of the most respected in the world.
7. Lesser-Known Facts
- Meticulous Records: Sutermeister was famous for his laboratory notebooks. He kept exhaustive records of every experiment, no matter how small. These notebooks were preserved by the S.D. Warren Company for decades after his death as a primary resource for troubleshooting production issues.
- The "Forestry" Gap: During his three years at the U.S. Forest Service (1907–1910), he was one of the first researchers to investigate the potential of using "non-traditional" wood species for pulping, anticipating the industry's eventual shift toward a wider variety of timber sources.
- A Lifelong Resident: Despite his international reputation and invitations to work in major cities, Sutermeister remained deeply rooted in Maine. He lived in the same small town of Westbrook for over fifty years, preferring the practical environment of the mill to the ivory towers of academia.