Pulp and Paper 3095 



PAPER 



Newsprint is paper made largely from groundwood pulp, used chiefly in the 

 printing of newspapers. Most newsprint is made with basis weight from 30 to 35 

 pounds; i.e., 500 sheets measuring 24 x 36 inches weigh 30 to 35 pounds. 



Uncoated groundwood includes uncoated papers containing more than 25 

 percent groundwood, excluding newsprint. 



Machine and offset coated paper is bleached paper with a coating weight of 

 at least 2.5 pounds (per 500 sheets of 25- x 38-inch paper) on either side, and at 

 least 50 percent of the coating consisting of pigment. 



Coated groundwood is coated paper containing more than 25 percent me- 

 chanical pulp. 



Coated free sheet is coated paper containing 25 percent or less mechanical 

 pulp. 



Uncoated free sheet (book paper, uncoated and chemical writing) in- 

 cludes bleached uncoated printing and writing papers containing no more than 

 25 percent groundwood pulp, e.g., offset, tablet, envelope, form bond, cover, 

 and text papers, and business papers (bond, ledger, mimeo, and duplicator 

 papers). 



Bleached bristols include coated bristols for tabulating indexes, tags, file 

 folders, and covers; and uncoated bristols for indexes, printing and postcards. 

 Bristols are stiff, with smooth surfaces, and have a minimum thickness of 0.006 

 inch. 



Cotton fiber papers contain 25 percent or more cotton, cotton rags, cotton 

 waste, linters, linter pulp, flax, or similar fibers. 



Thin papers include carbonizing, condenser, cigarette, and similar thin spe- 

 cialty papers. 



Packaging and industrial converting paper includes wrapping paper, ship- 

 ping sack, bag and sack paper other than shipping sack, and other converting 

 papers having a basis weight of 18 pounds or more. 



Unbleached kraft papers contain more than 50 percent unbleached sulfate 

 wood pulp. 



Bleached packaging and industrial converting paper contains more than 

 50 percent bleached wood pulp. This class includes glassine, greaseproof, 

 vegetable parchments, and some unbleached sulfite papers. 



Special industrial paper and board includes paper and board of all weights, 

 calipers, and furnishes, designed for specialized end uses such as abrasive 

 paper, cable paper, electrical insulation, vulcanized fiber, resin-impregnating 

 stock, and similar grades. It does not include wet machine board. 



Tissue includes sanitary grades of paper, i.e., toilet, facial, napkin, toweling, 

 sanitary napkin, wiper, and special sanitary papers. It also includes wax paper, 

 wrapping paper, and wadding. 



