Patent classifications
D21H15/06
SYSTEM AND METHOD FOR MILL EFFLUENT BIOLOGICAL OXYGEN DEMAND (BOD) REDUCTION
A system and method of forming a molded pulp product that involves separately collecting, from a paper-making process, waste water containing short fibers at a first fiber consistency, waste water as dilution water containing fibers at a second fiber consistency that is lower than the first fiber consistency, and water containing long fibers, the long fibers having a length that is greater than a length of the short fibers, blending the waste water containing short fibers and the water containing long fibers to obtain a pulp slurry, and molding the pulp slurry into a molded pulp product at a pulp molding machine. In an embodiment, filtrate removed during the molding of the molded pulp product has a BOD measurement that is 95% less than a BOD measurement of the pulp slurry, where the BOD measurements are obtained using the EPA 405.1, SM5210B Test Method.
SYSTEM AND METHOD FOR MILL EFFLUENT BIOLOGICAL OXYGEN DEMAND (BOD) REDUCTION
A system and method of forming a molded pulp product that involves separately collecting, from a paper-making process, waste water containing short fibers at a first fiber consistency, waste water as dilution water containing fibers at a second fiber consistency that is lower than the first fiber consistency, and water containing long fibers, the long fibers having a length that is greater than a length of the short fibers, blending the waste water containing short fibers and the water containing long fibers to obtain a pulp slurry, and molding the pulp slurry into a molded pulp product at a pulp molding machine. In an embodiment, filtrate removed during the molding of the molded pulp product has a BOD measurement that is 95% less than a BOD measurement of the pulp slurry, where the BOD measurements are obtained using the EPA 405.1, SM5210B Test Method.
SOFT TISSUE COMPRISING SYNTHETIC FIBERS
The present invention provides a tissue product formed from a fiber furnish consisting essentially of short cellulosic fibers, such as fibers having an average fiber length less than about 2.0 mm, and a synthetic fiber having at least one cross-section dimension less than about 20 microns. The invention also provides a tissue product comprising at least one wet laid multi-layered tissue web comprising a fiber furnish consisting essentially of synthetic fibers and short cellulosic fibers, the multi-layered tissue web having a first and second outer layer and a middle layer disposed there between where the synthetic fibers are selectively disposed in the middle layer. Generally the tissue product comprises less than about 30 percent, by weight of the tissue product, synthetic fiber. In a preferred embodiment the tissue product comprises non-fibrillated polyethylene terephthalate (PET) fibers having a circular cross-section shape with a diameter less than about 5.0 microns and are substantially free from long cellulosic fibers. Despite being free from long cellulosic fibers the tissue product have good strength and low stiffness.
SOFT TISSUE COMPRISING SYNTHETIC FIBERS
The present invention provides a tissue product formed from a fiber furnish consisting essentially of short cellulosic fibers, such as fibers having an average fiber length less than about 2.0 mm, and a synthetic fiber having at least one cross-section dimension less than about 20 microns. The invention also provides a tissue product comprising at least one wet laid multi-layered tissue web comprising a fiber furnish consisting essentially of synthetic fibers and short cellulosic fibers, the multi-layered tissue web having a first and second outer layer and a middle layer disposed there between where the synthetic fibers are selectively disposed in the middle layer. Generally the tissue product comprises less than about 30 percent, by weight of the tissue product, synthetic fiber. In a preferred embodiment the tissue product comprises non-fibrillated polyethylene terephthalate (PET) fibers having a circular cross-section shape with a diameter less than about 5.0 microns and are substantially free from long cellulosic fibers. Despite being free from long cellulosic fibers the tissue product have good strength and low stiffness.
Durable tissue product
The present invention provides a durable tissue product produced from a tissue web that has been manufactured by applying a binder, such as by printing, to one side of the web and then contacting the binder applied side to a rotating dryer and creping the web therefrom. The side of the web opposite of the binder applied side is generally not treated with a binder, or the like, and is not subjected to creping. Further, the opposite side is generally formed from a layer of short, low coarseness cellulosic fibers, such as hardwood kraft fibers, and may be substantially free from long cellulosic fibers, such as softwood fibers. Despite forming the untreated surface from short fibers, the tissue product has good durability, such as a slough from about 6.0 to about 9.0 mg.
Durable tissue product
The present invention provides a durable tissue product produced from a tissue web that has been manufactured by applying a binder, such as by printing, to one side of the web and then contacting the binder applied side to a rotating dryer and creping the web therefrom. The side of the web opposite of the binder applied side is generally not treated with a binder, or the like, and is not subjected to creping. Further, the opposite side is generally formed from a layer of short, low coarseness cellulosic fibers, such as hardwood kraft fibers, and may be substantially free from long cellulosic fibers, such as softwood fibers. Despite forming the untreated surface from short fibers, the tissue product has good durability, such as a slough from about 6.0 to about 9.0 mg.
Fibrous structures and methods for making same
Novel fibrous structures that contain filaments, and optionally, solid additives, such as fibers, for example wood pulp fibers, sanitary tissue products comprising such fibrous structures, and methods for making such fibrous structures and/or sanitary tissue products are provided.
Fibrous structures and methods for making same
Novel fibrous structures that contain filaments, and optionally, solid additives, such as fibers, for example wood pulp fibers, sanitary tissue products comprising such fibrous structures, and methods for making such fibrous structures and/or sanitary tissue products are provided.
DURABLE TISSUE PRODUCT
The present invention provides a durable tissue product produced from a tissue web that has been manufactured by applying a binder, such as by printing, to one side of the web and then contacting the binder applied side to a rotating dryer and creping the web therefrom. The side of the web opposite of the binder applied side is generally not treated with a binder, or the like, and is not subjected to creping. Further, the opposite side is generally formed from a layer of short, low coarseness cellulosic fibers, such as hardwood kraft fibers, and may be substantially free from long cellulosic fibers, such as softwood fibers. Despite forming the untreated surface from short fibers, the tissue product has good durability, such as a slough from about 6.0 to about 9.0 mg.
DURABLE TISSUE PRODUCT
The present invention provides a durable tissue product produced from a tissue web that has been manufactured by applying a binder, such as by printing, to one side of the web and then contacting the binder applied side to a rotating dryer and creping the web therefrom. The side of the web opposite of the binder applied side is generally not treated with a binder, or the like, and is not subjected to creping. Further, the opposite side is generally formed from a layer of short, low coarseness cellulosic fibers, such as hardwood kraft fibers, and may be substantially free from long cellulosic fibers, such as softwood fibers. Despite forming the untreated surface from short fibers, the tissue product has good durability, such as a slough from about 6.0 to about 9.0 mg.