A ragger system for removing solid debris from a pulper vessel of a pulping system is disclosed. The ragger system includes a ragger operable to pull a tail of solid debris from the pulper vessel. The ragger includes a puller mechanism, a puller drive, a rider roll, and a pressure device to adjust a pressure of the rider roll on the tail between the puller mechanism and the rider roll. The ragger system includes a measurement device for determining attributes of the tail, operating conditions of the pulping system or ragger, or combinations of these. The ragger system includes a control system that measures input variables with the measurement devices, determines the attributes of the tail or operating conditions from the input variables, and adjusts a withdrawal rate, pull direction, pressure, rider roll torque or speed, or combinations thereof to maintain continuity of operation of the ragger.

A bale of sheets made of waste/recycle cellulose fibers and cellulose ester (CE) staple fibers can be fed to a hydropulper. The CE staple fibers have: i. a denier per filament (DPF) of less than 3, or ii. a cut length of less than 6 mm, or iii. crimping, or iv. a combination of any two or more of (i)-(iii).

The bales can be fed and dropped in as entire bales to a hydropulper, or a blend tank directly or indirectly in fluid communication with a hydropulper, using the same feed system employed for feeding cellulose to the hydopulper and avoiding having to defiberize by pulling or drawing fibers from a box container into a hydropulper. The waste/recycle cellulose fibers and CE staple fibers can be co-refined prior to making the bale of sheets.

A bale of sheets made of virgin cellulose fibers and cellulose ester (CE) staple fibers can be fed to a hydropulper. The CE staple fibers have: i. a denier per filament (DPF) of less than 3, or ii. a cut length of less than 6 mm, or iii. crimping, or iv. a combination of any two or more of (i)-(iii). The bales can be fed and dropped in as entire bales to a hydropulper, or a blend tank directly or indirectly in fluid communication with a hydropulper, using the same feed system employed for feeding cellulose to the hydopulper and avoiding having to defiberize by pulling or drawing fibers from a box container into a hydropulper.

A stirring apparatus includes a case that houses fiber pieces containing fibers, and a rotary body that is disposed inside the case and that stirs the fiber pieces, in which the rotary body includes a rotary portion that forms a portion of a bottom surface of the case and that rotates, and blades that stand upright on the rotary portion.

A stirring apparatus includes a case that houses fiber pieces containing fibers, and a rotary body that is disposed inside the case and that stirs the fiber pieces, in which the rotary body includes a rotary portion that forms a portion of a bottom surface of the case and that rotates, and blades that stand upright on the rotary portion.

Provided is microcrystalline cellulose (MCC) from cellulosic or lignocellulosic biomass produced efficiently and quickly through cost-effective methods and systems. The MCC is comprised of short fibers due to the process through which the biomass is subjected. In addition to MCC, nanocellulose (CNF), and high quality crystalline nanocellulose (CNC) can be produced, as well as other cellulosic compounds, clean lignin and monomeric C5 and C6 sugars.

Provided is microcrystalline cellulose (MCC) from cellulosic or lignocellulosic biomass produced efficiently and quickly through cost-effective methods and systems. The MCC is comprised of short fibers due to the process through which the biomass is subjected. In addition to MCC, nanocellulose (CNF), and high quality crystalline nanocellulose (CNC) can be produced, as well as other cellulosic compounds, clean lignin and monomeric C5 and C6 sugars.

Improved processes for liberating trichome fibers from non-seed portions of a trichome-bearing host plant are provided. The processes include one or more steps for disassociating trichome fibers that are already separated from leaves, stems, and still-attached fibers so that the separated trichome fibers can be collected and not lost through a waste stream.

Improved processes for liberating trichome fibers from non-seed portions of a trichome-bearing host plant are provided. The processes include one or more steps for disassociating trichome fibers that are already separated from leaves, stems, and still-attached fibers so that the separated trichome fibers can be collected and not lost through a waste stream.

The invention discloses a method for preparing chitosan and a derivative nanofiber thereof by mechanical means. The method comprises: firstly pre-treating a chitosan fiber or a chitosan derivative fiber material (referred to as chitosan fiber) of a suitable length with water or alkali or acid of an appropriate concentration added, then refining or beating the treated fiber (preferably using a beating device in a beating and papermaking process) to obtain a micro-sized chitosan fiber, and finally homogenizing the micro-sized chitosan fiber under a high pressure to obtain a chitosan nanofiber. According to an electron microscope image, the obtained chitosan nanofiber reaches a nano-level. The method is simple in operation and convenient for industrial production, and the obtained chitosan nanofiber with a new topology has broad application prospects in biomedicine, daily chemical engineering and special materials.