3077 



25-4 PRESS DRYING 3115 



25-5 MECHANICAL PULPING 3118 



GROUNDWOOD 3118 



CHEMIGROUNDWOOD 3120 



PRESSURIZED STONE GRINDING 3121 



REFINER MECHANICAL PULP (RMP) 3122 



THERMOMECHANIC AL PULP (TMP) 3122 



CHEMI-MECHANICAL PULP (CCMP) 3123 



CHEMI-THERMOMECHANICAL PULP (CTMP) 3124 



COLD SODA PULP 3125 



ENERGY TO MANUFACTURE MECHANICAL PULP 3126 



25-6 SEMICHEMICAL PULPING 3127 



TRENDS IN MECHANICAL AND SEMICHEMICAL 



PULP PRODUCTION 3127 



NEUTRAL SULFITE SEMICHEMICAL PULPING. . . . 3129 



Unbleached NSSC pulps 3130 



Bleached NSSC pulps 3131 



GREEN LIQUOR SEMICHEMICAL PULPING 3131 



NON-SULFUR SEMICHEMICAL PULPING 3132 



25-7 CHEMICAL PULPING 3133 



SPECIES PROPORTIONS FOR KRAFT PULPING . . . 3134 



Unbleached kraft linerboard 3134 



Bleached kraft pulp 3134 



Preferred species 3135 



KRAFT PROCESS 3135 



Pulping cycle and chemical recovery furnace 3135 



Process references ^ southern pine 3136 



Process references, hardwoods 3136 



HARDWOOD KRAFT PULPING VERSUS 



SOFTWOOD KRAFT PULPING 3137 



Pulping 3137 



Beating and bleaching 3138 



Strength properties 3139 



Reaction wood 3139 



25-8 DISSOLVING PULP 3140 



CELLULOSE ETHER DERIVATIVES 3140 



25-9 PULPING OF WHOLE-TREE HARDWOOD CHIPS .... 3141 



25-10 LITERATURE CITED 3143 



