IN A TOKYO SHOPPING CENTER, ARTIST LOTTA JANSDOTTER CAN EXPECT TO BE MOBBED FOR AUTOGRAPHS. And with a store in San Francisco and orders for her retro-inspired textiles, cards, and ceramics coming in daily, it's just a matter of time before fame finds Swedish-born Jansdotter in the U.S. But it's not just the designer who's poised for mass recognition. Her method--screen printing--is making a comeback: "As the fabrics and forms of the '60s grow more popular, so does screen printing," ...