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Art Fry was sitting in church one Sunday morning when the idea came to him. He thought to himself: "I wonder if I can make a bookmark that would stick to paper?"
Earlier in the service, Art got up to sing with the choir when one of the pieces of paper being used to mark the pages in his music fell out. "Everybody else is singing and I'm trying to find out what page we're on," he recalls.
"It was kind of a dull sermon that morning and my mind was thinking about this problem. All of the adhesives that I knew about would pull paper apart. Their adhesion strength to the paper was stronger than the internal strength of the paper. So if you pulled it off, you tore the paper apart. How can I make one that was less sticky so that the adhesion to the paper was below the lamination strength of the paper?
"I thought, 'Oh, what about those sticky spheres? The closer you put them together, the stickier they are. The farther apart, the less sticky they are. There should be some point where I can get just the perfect adhesion rate.'"
And so goes the story of Post-it® notes, one of the most innovative products of our time. Today, 27 years after 3M Corporation introduced Post-it® notes, they are sold in a variety of colors and sizes in more than 100 countries. They are synonymous with innovation at 3M and one of the company's most valuable assets with sales of more than $1 billion a year.
Art left church that Sunday on a mission to satisfy his curiosity.
Taking full advantage of 3M's policy of allowing its technology people to devote 15 percent of their time to projects of their own choosing, Art went to work on making a bookmark out of the copolymer micro-spheres discovered several years earlier by 3M research scientist Dr. Spence Silver.
"I tried an early sample on some of the music and the pages stuck together for years later," Art says. "But I was able to solve the problem of welding those sticky spheres to the bookmark."
Art made samples and handed them out to engineers, chemists, and secretaries at 3M. "When I asked how they liked them, they said, 'Fine. They're going from page to page to page, and working great.'"
But the real "Ah-ha" moment came when Art wrote a question on a bookmark and attached it to a report to his boss, who sent back the answer on the same piece of paper. "During a coffee break that afternoon, we were talking about it and realized, 'Ah, this isn't just a bookmark. It's a whole new way to communicate. It's simple. It's easy. It's forgiving. It's going to last.'"
It took two years of "making a little and selling a little" in market tests in four U.S. cities and five years altogether, but 3M developed the manufacturing and marketing ability to deliver Post-it® notes to the North American market in 1980. Looking back on the obstacles he had to overcome, Art explains: "Successful innovators have to design products not only with their brains but with their hearts. Customers can look at a product and see very quickly if it was designed for them. And if you have heart-to-heart contact, they're going to keep buying your product."
Art held 3M's top technical title, corporate scientist, when he retired in 1992 after nearly 40 years of service. He lives in Maplewood, Minnesota, about 10 minutes by car from 3M's world headquarters, and remains active "wholesale mentoring" on creativity and innovation.
"A lot of companies want innovation," Art says. "But what they want is the growth and the rewards. That's like focusing on the end line or awards ceremony and not focusing on the race."
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