Sugar-cellulose composites VII. A comparative assessment of corn syrup as a fiber substitute in paper.

The ability of the mixture of alpha-linked glucose oligomers in corn syrup to function as intrafiber components of paper is statistically assessed at the 95% confidence level for two degrees of refining (257 and 402 mL CSF) of never-dried commercial softwood and hardwood/softwood pulps. Independent of the extent of refining, the replacement of the beaten fibers by corn syrup at about the 6% level does not result in a statistically significant deterioration (two-sided t-test, p=0.05) of the ISO brightness or of the tensile, tear, burst or surface strength values of the resultant papers. The economic potential of such fiber replacement is discussed. As paper additives, the mixed alpha-oligomers (corn syrup), glucose and lactose perform indistinguishably.

Extension de fibras celulosicas con pigmentos inorganicos: a tecnica de "carga en la pared celular" con pulpas de bagazo y un empaste experimental para papel prensa

La industria celulosica enfrenta en la actualidad tres problemas que afectan directamente al medio ambiente 1) la disponibilidad y costo de la materia prima virgen 2) el elevado consumo quimico-energetico requerido para transformar la fibra en papel 3) la magnitud y toxicidad de los efluentes generados en esa transformacion. Entre las diversas alternativas evaluadas se presenta el metodo de "carga en la pared celular" (cell-wall loading) como una tecnica para obtener papeles con alto contenido de cenizas (ultrahigh-ash paper). Se analizan las propiedades fisicas de pulpas semiquimicas de bagazo cargadas internamente por precipitacion in situ de carbonato de calcio