One embodiment provides a papermaking machine, which includes a wire for conveying a fiber web; a trim squirt for making a cut line in the fiber web; a machine reference; and a measurement device for measuring a distance between the cut line and the machine reference, the device comprising a laser adapted to illuminate the cut line and determine a location of the cut line for the measuring. Methods of making and using the papermaking machine are also provided.

A monitoring system comprising: (a) one or more sensors that monitor activity, amplitude, size, scale, duration of activity or a combination thereof of stock on a paper machine and (b) a control system in communication with the one or more sensors and one or more foil sections within the paper machine; wherein the control system measures the activity, amplitude, size, scale, duration of activity or a combination thereof of the stock and correlates the activity, amplitude, size, scale, duration of activity or a combination thereof to formation of fibers within the stock so that an angle, height, or both of the one or more foil sections are adjusted to change the activity, amplitude, size, scale, duration of activity or a combination thereof in the stock.

Variation in the amount of material that is dispersed when material containing fiber is discharged by a sieve is suppressed. A fiber processing device has a drum that screens defibrated material containing fiber, a mesh belt that accumulates first screened material discharged from the drum, and a processor that processes the first screened material accumulated on the mesh belt. The drum operates at a first speed during processing by the processor; and when the drum starts from a stationary stop, a startup operation including a state in which the drum operates at a slower speed than the first speed executes for a specific time.

One embodiment provides a papermaking machine, which includes a wire for conveying a fiber web; a trim squirt for making a cut line in the fiber web; a machine reference; and a measurement device for measuring a distance between the cut line and the machine reference, the device comprising a laser adapted to illuminate the cut line and determine a location of the cut line for the measuring. Methods of making and using the papermaking machine are also provided.

Automated parameter tuning techniques for cross-directional model predictive control for paper-making under user-specified parametric uncertainties are developed. The CD-MPC design explicitly accounts for parametric model uncertainty while finding a value for the CD profile trajectory generation that minimizes the CD settling time of the measurement 2 sigma spread and does not exceed an overshoot limit for actuator 2 sigma spread. The inventive technique includes: (i) providing uncertainty specifications for the temporal parameters of the process model, (ii) specifying 2 sigma overshoot limits for the CD actuator profile, (iii) using robust stability theory to find a minimum bound for the profile trajectory tuning parameter, (iv) using a frequency domain technique to reduce the search range for the profile trajectory tuning parameter, and (v) performing an intelligent search for the tuning parameter that minimizes measurement 2 sigma settling time without exceeding the actuator 2 sigma overshoot limit.

The disclosure relates to a device for simultaneously producing a plurality of containers comprising fibers, using fiber-containing pulp. The disclosure furthermore relates to a method for simultaneously producing a plurality of containers comprising fibers, using fiber-containing pulp by means of the device.

An object is to provide a monitoring system capable of preventing the occurrence of a defect in paper by monitoring the device. The present invention is directed to a monitoring system A having a papermaking machine 1 for manufacturing paper X, an applying device 2 for applying a chemical solution to a site of the papermaking machine directly or indirectly in contact with the paper while the papermaking machine 1 is operated, a control panel 3 for setting an application condition of the applying device 2, a monitoring camera 4 for monitoring a monitoring target site, and a control device 5 connected to the monitoring camera 4 via a network. The monitoring target site is the site of the papermaking machine 1 directly or indirectly in contact with the paper X and/or the applying device 2, and the control device 5 has a computing unit S1 which converts a state of the monitoring target site into a numerical form by using video taken by the monitoring camera 4, a display unit S2 which displays detection data obtained by conversion into the numerical form at the computing unit S1, and a storage unit S3 which stores the detection data.

The invention relates to a system of producing MFC (micro fibrillated cellulose) having a process device (30) of a pulper, a refiner or a screen configured to process MFC suspension to consistency of 0.5-5%. The system has a continuous pressing means (15; 25, 26) configured to dry the MFC suspension to a consistency of 6-60%. A method of producing MFC has at least one process stage (30) which processes a MFC suspension to a consistency of 0.5-5% by a process device (30). In the process stage the MFC suspension is pulped in a pulping stage in a pulper and/or refined in a refining stage by a refiner and/or screened in a screening stage by a screen. The MFC suspension having the consistency of 0.5-5% is dried in a drying stage of continuous pressing (15, 25, 26) by continuous a pressing device (15, 25, 26) to a consistency of 6-60%.

An object of the present invention is to provide a carbon sheet to be used suitably for a gas diffusion electrode, in which the carbon sheet does not worsen the electrical resistance in the through-plane direction, and can be prevented from the deflection into the gas flow channels provided in the bipolar plate, although such characteristics. A carbon sheet according to the present invention, provided to achieve the above-described object, is a carbon sheet including a first surface and a second surface located at the opposite side to the first surface; wherein, assuming that a specific section is equally divided into 20 portions in the thickness direction to form 20 layers, the degree of fiber orientation of the first surface side outermost layer of the 20 layers is 1.20 or more and 3.00 or less; and wherein, assuming that a region composed of consecutive layers that are included in the 20 layers, and satisfy specific conditions is a first surface side region, and that a region composed of a layer(s) included in the 20 layers but not included in the first surface side region is a second surface side region, the thickness of the first surface side region is 40% or less of the thickness of the whole carbon sheet, and a difference between the average degree of fiber orientation of the second surface side region and the degree of fiber orientation of the first surface side outermost layer is larger than 0.10.

A monitoring system comprising: (a) one or more sensors that monitor activity, amplitude, size, scale, duration of activity or a combination thereof of stock on a paper machine and (b) a control system in communication with the one or more sensors and one or more foil sections within the paper machine; wherein the control system measures the activity, amplitude, size, scale, duration of activity or a combination thereof of the stock and correlates the activity, amplitude, size, scale, duration of activity or a combination thereof to formation of fibers within the stock so that an angle, height, or both of the one or more foil sections are adjusted to change the activity, amplitude, size, scale, duration of activity or a combination thereof in the stock.