A fibrous structure comprising first and second plies. The first ply comprises a first textured substrate comprising a first side comprising first discrete regions and a first continuous region extending between the first discrete regions, each first discrete region comprising an outer section and sidewall sections extending outwardly from the adjacent first continuous region to the outer section; a second side comprising first discrete portions corresponding to the first discrete regions and a first continuous portion corresponding to the first continuous region; and first polymer particles deposited on at least one of the first side or the second side. When the first polymer particles are deposited on the first side, the first polymer particles are substantially deposited on the outer sections of the first discrete regions and do not extend to the adjacent first continuous region. When the first polymer particles are deposited on the second side, the first polymer particles are substantially deposited on the first continuous portion and do not extend to the adjacent first discrete portions. At least a section of each of the first polymer particles defines a raised edge. The second ply comprises a second substrate joined to the first textured substrate.

A fibrous structure comprising first and second plies. The first ply comprises a first textured substrate comprising a first side comprising first discrete regions and a first continuous region extending between the first discrete regions, each first discrete region comprising an outer section and sidewall sections extending outwardly from the adjacent first continuous region to the outer section; a second side comprising first discrete portions corresponding to the first discrete regions and a first continuous portion corresponding to the first continuous region; and first polymer particles deposited on at least one of the first side or the second side. When the first polymer particles are deposited on the first side, the first polymer particles are substantially deposited on the outer sections of the first discrete regions and do not extend to the adjacent first continuous region. When the first polymer particles are deposited on the second side, the first polymer particles are substantially deposited on the first continuous portion and do not extend to the adjacent first discrete portions. At least a section of each of the first polymer particles defines a raised edge. The second ply comprises a second substrate joined to the first textured substrate.

A rectifying device includes: a first flow channel member that has an annular first flow channel through which a fluid flows in an axial direction, the first flow channel being provided between an inner peripheral wall and an outer peripheral wall; a second flow channel member that has a second flow channel between the inner peripheral wall and the outer peripheral wall, the second flow channel being provided upstream of the first flow channel in a flowing direction of the fluid and being connected with the first flow channel along an entire circumference; an inflow section that is provided at the second flow channel member and that allows the fluid to flow into a circumferential area of the second flow channel located away from the first flow channel in the axial direction; a first guide wall that is provided within the second flow channel at a position located away from the inflow section in a circumferential direction and that guides the fluid flowing toward a first side in the circumferential direction through the second flow channel toward the first flow channel; and a second guide wall that is provided within the second flow channel at a position adjacent to the first guide wall in the circumferential direction, the second guide wall guiding the fluid flowing toward a second side in the circumferential direction through the second flow channel toward the first flow channel and being disposed in a direction intersecting the first guide wall.

A rectifying device includes: a first flow channel member that has an annular first flow channel through which a fluid flows in an axial direction, the first flow channel being provided between an inner peripheral wall and an outer peripheral wall; a second flow channel member that has a second flow channel between the inner peripheral wall and the outer peripheral wall, the second flow channel being provided upstream of the first flow channel in a flowing direction of the fluid and being connected with the first flow channel along an entire circumference; an inflow section that is provided at the second flow channel member and that allows the fluid to flow into a circumferential area of the second flow channel located away from the first flow channel in the axial direction; a first guide wall that is provided within the second flow channel at a position located away from the inflow section in a circumferential direction and that guides the fluid flowing toward a first side in the circumferential direction through the second flow channel toward the first flow channel; and a second guide wall that is provided within the second flow channel at a position adjacent to the first guide wall in the circumferential direction, the second guide wall guiding the fluid flowing toward a second side in the circumferential direction through the second flow channel toward the first flow channel and being disposed in a direction intersecting the first guide wall.

A coating device includes: a coating liquid holding part provided with an upper opening portion and a lower opening portion and holding a coating liquid that is supplied from a coating liquid supply part; and an annular body that is disposed inside the coating liquid holding part, through which a cylindrical body penetrating the upper opening portion and the lower opening portion of the coating liquid holding part penetrates, and in which the coating liquid held by the coating liquid holding part flows in from an upper side and flows out from a lower side with a relative movement to the cylindrical body, the annular body being installed to be relatively displaceable along an installation surface intersecting a direction of the relative movement with respect to the coating liquid holding part.

A coating device includes: a coating liquid holding part provided with an upper opening portion and a lower opening portion and holding a coating liquid that is supplied from a coating liquid supply part; and an annular body that is disposed inside the coating liquid holding part, through which a cylindrical body penetrating the upper opening portion and the lower opening portion of the coating liquid holding part penetrates, and in which the coating liquid held by the coating liquid holding part flows in from an upper side and flows out from a lower side with a relative movement to the cylindrical body, the annular body being installed to be relatively displaceable along an installation surface intersecting a direction of the relative movement with respect to the coating liquid holding part.

A pipe doping apparatus comprises a bucket assembly including a base and a bucket supported on the base and having an inside volume, a lubricating unit having at least one lubricant applicator inside the bucket; and a source of torque configured to rotate the bucket and/or the lubricating unit relative to a tubular. The apparatus may include a cleaning unit and/or a drying unit and the source of torque may be a fluid jet in either. At least one lubricant applicator may be retractable and may be actuated between a retracted position and an extended position by centripetal force. The apparatus may further include a positioning assembly supporting the base and the rotary bucket assembly and a controller connected to and controlling each of:—the positioning assembly, the cleaning unit, the drying unit, and the lubricating unit.

A pipe doping apparatus comprises a bucket assembly including a base and a bucket supported on the base and having an inside volume, a lubricating unit having at least one lubricant applicator inside the bucket; and a source of torque configured to rotate the bucket and/or the lubricating unit relative to a tubular. The apparatus may include a cleaning unit and/or a drying unit and the source of torque may be a fluid jet in either. At least one lubricant applicator may be retractable and may be actuated between a retracted position and an extended position by centripetal force. The apparatus may further include a positioning assembly supporting the base and the rotary bucket assembly and a controller connected to and controlling each of:—the positioning assembly, the cleaning unit, the drying unit, and the lubricating unit.

A surface chemical treatment apparatus provided with: a first conduit having an opening at one end and communicating with a liquid supply means at the other end; a second conduit having at one end an opening that surrounds the opening of the first conduit and communicating with a liquid suction means at the other end; and a moving mechanism for moving the openings of the first and second conduits relative to the solid phase surface, so as to make a surface chemical treatment possible in a fine pattern by allowing the patterning solution to be dispensed through the opening of the first conduit while allowing the solution to be suctioned up together with the surrounding liquid phase or gas phase medium through the opening of the second conduit that surrounds the opening of the first conduit and, thus, preventing seepage of the solution in all directions.

A surface chemical treatment apparatus provided with: a first conduit having an opening at one end and communicating with a liquid supply means at the other end; a second conduit having at one end an opening that surrounds the opening of the first conduit and communicating with a liquid suction means at the other end; and a moving mechanism for moving the openings of the first and second conduits relative to the solid phase surface, so as to make a surface chemical treatment possible in a fine pattern by allowing the patterning solution to be dispensed through the opening of the first conduit while allowing the solution to be suctioned up together with the surrounding liquid phase or gas phase medium through the opening of the second conduit that surrounds the opening of the first conduit and, thus, preventing seepage of the solution in all directions.