The present invention relates to a method for processing grass or hay as paper pulp having the steps of pre-reducing the grass or hay with a bale breaker and/or a shredder to an average fiber length between 500 mm and 10 mm, preferably between 120 mm and 10 mm, removing impurities and foreign or extraneous substances by means of a cyclone; reducing and fibrillating the grass or hay in a fiber mill, fraying the grass or hay; and screening and/or sifting the grass or hay by means of a circulating-air separator and/or a cyclone screener.

The present invention relates to a method for processing grass or hay as paper pulp having the steps of pre-reducing the grass or hay with a bale breaker and/or a shredder to an average fiber length between 500 mm and 10 mm, preferably between 120 mm and 10 mm, removing impurities and foreign or extraneous substances by means of a cyclone; reducing and fibrillating the grass or hay in a fiber mill, fraying the grass or hay; and screening and/or sifting the grass or hay by means of a circulating-air separator and/or a cyclone screener.

A sheet manufacturing apparatus includes a defibrator configured to produce defibrated material, a feedstock supply unit, a monitoring device, and a cleaning device. The feedstock supply unit includes a conveyance device configured to convey feedstock, a storage device configured to accumulate the feedstock conveyed from the conveyance device and supply the feedstock to the defibrator, and a measuring device configured to measure a state of the feedstock accumulated on the storage device. The monitoring device is configured to predict stopping of conveyance of the feedstock by the feedstock supply unit and activate the cleaning device when a conveyance speed of the feedstock by the feedstock supply unit becomes slower than during normal operation. The cleaning device is configured to execute on at least one of the conveyance device and the storage device a cleaning process that preemptively prevents the stopping of conveyance.

A sheet manufacturing apparatus includes a defibrator configured to produce defibrated material, a feedstock supply unit, a monitoring device, and a cleaning device. The feedstock supply unit includes a conveyance device configured to convey feedstock, a storage device configured to accumulate the feedstock conveyed from the conveyance device and supply the feedstock to the defibrator, and a measuring device configured to measure a state of the feedstock accumulated on the storage device. The monitoring device is configured to predict stopping of conveyance of the feedstock by the feedstock supply unit and activate the cleaning device when a conveyance speed of the feedstock by the feedstock supply unit becomes slower than during normal operation. The cleaning device is configured to execute on at least one of the conveyance device and the storage device a cleaning process that preemptively prevents the stopping of conveyance.

A method for treating cellulosic fibers to improve paper, board and tissue quality; the method involves splitting fibers from feed pulp into an original portion containing original fibers and a refineable portion containing original fibers. The refinable portion is refined to create a refined portion containing refined fibers. Varying amounts of the original unrefined fibers and refined fibers are blended together to form a recombined slurry that is processed by a paper machine into an optimized paper product. A master control system and fiber measurement system are integrated with the overall system to regulate all processing.

Disclosed herein are methods for producing a pulp or paper product from a plant material having bast and hurd fibers, such as a cannabis plant material. For example, there is method for producing a pulp or paper product from a plant material having bast and hurd fibers, the method comprising processing of a plant hurd fiber material into a hurd fiber pulp or pulp slurry in a first stream; processing of a plant bast fiber material into a bast fiber pulp or pulp slurry in a second stream; blending of the hurd fiber pulp or pulp slurry and the bast fiber pulp or pulp slurry to provide a blended pulp or pulp slurry; and producing the pulp or the paper product from the blended pulp or pulp slurry. Also provided are pulp and paper products produced from such methods. Also provided are cannabis pulp and paper products.

Disclosed herein are methods for producing a pulp or paper product from a plant material having bast and hurd fibers, such as a cannabis plant material. For example, there is method for producing a pulp or paper product from a plant material having bast and hurd fibers, the method comprising processing of a plant hurd fiber material into a hurd fiber pulp or pulp slurry in a first stream; processing of a plant bast fiber material into a bast fiber pulp or pulp slurry in a second stream; blending of the hurd fiber pulp or pulp slurry and the bast fiber pulp or pulp slurry to provide a blended pulp or pulp slurry; and producing the pulp or the paper product from the blended pulp or pulp slurry. Also provided are pulp and paper products produced from such methods. Also provided are cannabis pulp and paper products.

A system for treating cellulosic fibers to improve paper, board and tissue quality; the system involves splitting fibers into an original portion having original fibers and a refinable portion. The refinable portion may further be fractionated by one or more fibers properties by a fiber fractionation system into a first fraction and a second fraction. The refinable portion as a whole, or a fractionated fraction thereof, is then refined to produce refined fibers. Varying amounts of the original unrefined fibers, refined fibers and possibly additionally fractionated unrefined fibers are blended together to form an optimized slurry that is processed by a paper machine into an optimized paper product. A master control system, fiber measurement system and optional fractionation maintenance system are integrated with the overall system to regulate all processing.

The present invention relates to a method for processing grass or hay as paper pulp having the steps of pre-reducing the grass or hay with a bale breaker and/or a shredder to an average fiber length between 500 mm and 10 mm, preferably between 120 mm and 10 mm, removing impurities and foreign or extraneous substances by means of a cyclone; reducing and fibrillating the grass or hay in a fiber mill, fraying the grass or hay; and screening and/or sifting the grass or hay by means of a circulating-air separator and/or a cyclone screener.

Disclosed herein are methods for producing a pulp or paper product from a plant material having bast and hurd fibers, such as a cannabis plant material. For example, there is method for producing a pulp or paper product from a plant material having bast and hurd fibers, the method comprising processing of a plant hurd fiber material into a hurd fiber pulp or pulp slurry in a first stream; processing of a plant bast fiber material into a bast fiber pulp or pulp slurry in a second stream; blending of the hurd fiber pulp or pulp slurry and the bast fiber pulp or pulp slurry to provide a blended pulp or pulp slurry; and producing the pulp or the paper product from the blended pulp or pulp slurry. Also provided are pulp and paper products produced from such methods. Also provided are cannabis pulp and paper products.