Jul 12, 2005. /Lesprom Network/. Nippon Paper Industries Co., Ltd. is pleased to announce the release of Opera Cream Max, a woodfree low-density book paper. By crystallizing its low-density technology, the company has achieved a new industry-low density of 0.55g/cm3. Opera Cream Max is 9% lighter than the old low-density book paper. Opera Cream Max has smoothness that is on a par with Opera Cream Ultra, although the smoothness is generally believed to decrease when density is lowered. It also maintains a softness and flexibility that has earned high marks from the market. The sales target for the new product is 1,000t/month.