Alignment device (1) for adjusting a position of a curved shower bar nozzle flange (2) relative a permeable outer cylindrical surface (3) of a drum roll (4) of for instance a drum washer. The alignment device comprises a body element (8), an attachment device (9) and a contact element (11). The body element has a length adapted to a desired predetermined distance between the end (7) of the nozzle flange and the outer cylindrical surface (3). The attachment device (9) is arranged at a first end (10) of the body element (8) for releasably connecting the body element to the nozzle flange end (7) to extend tangentially therefrom. The contact element (11) is arranged at a second opposite end (12) of the body element, said contact element being adapted to abut against said permeable outer cylindrical surface (3). A method for aligning a nozzle flange using such an alignment device is also provided.

Disclosed is mechanical and decolorization pretreatment of cotton-containing textiles, such as “trash” feedstock in terms of end-of-life-cotton textiles, that may be used to produce sugar without the use of harsh pretreatments conditions.

Disclosed is mechanical and decolorization pretreatment of cotton-containing textiles, such as “trash” feedstock in terms of end-of-life-cotton textiles, that may be used to produce sugar without the use of harsh pretreatments conditions.

Alignment device (1) for adjusting a position of a curved shower bar nozzle flange (2) relative a permeable outer cylindrical surface (3) of a drum roll (4) of for instance a drum washer. The alignment device comprises a body element (8), an attachment device (9) and a contact element (11). The body element has a length adapted to a desired predetermined distance between the end (7) of the nozzle flange and the outer cylindrical surface (3). The attachment device (9) is arranged at a first end (10) of the body element (8) for releasably connecting the body element to the nozzle flange end (7) to extend tangentially therefrom. The contact element (11) is arranged at a second opposite end (12) of the body element, said contact element being adapted to abut against said permeable outer cylindrical surface (3). A method for aligning a nozzle flange using such an alignment device is also provided.

A system (1) for refining lignocellulosic biomass material (A) comprising a presteaming bin (2), a dewatering device (3), a preheater (4), a defibrator (9) comprising at least one refining zone (14) wherein steam is generated during refining of said biomass material so that a pressure peak occurs, a blowpipe (19), and a first steam flow path (D) arranged to convey steam from said refining zone to said presteaming bin (2). The system further comprises a second steam flow path (E) arranged to convey steam from said refining zone to said presteaming bin, wherein said first and second steam flow paths are connected to the refining zone on opposite sides of the pressure peakin a biomass material transport direction, and wherein said first and second steam flow paths are separate from said blow pipe. The invention also relates to a process for refining lignocellulosic biomass material.

A system (1) for refining lignocellulosic biomass material (A) comprising a presteaming bin (2), a dewatering device (3), a preheater (4), a defibrator (9) comprising at least one refining zone (14) wherein steam is generated during refining of said biomass material so that a pressure peak occurs, a blowpipe (19), and a first steam flow path (D) arranged to convey steam from said refining zone to said presteaming bin (2). The system further comprises a second steam flow path (E) arranged to convey steam from said refining zone to said presteaming bin, wherein said first and second steam flow paths are connected to the refining zone on opposite sides of the pressure peakin a biomass material transport direction, and wherein said first and second steam flow paths are separate from said blow pipe. The invention also relates to a process for refining lignocellulosic biomass material.

A fibrous product for use in a variety of applications. The fibrous product particularly well suited for use in thermoforming 3-D articles such as food packaging, automotive parts, and electronic packaging. The fibrous product can be biodegradable, recyclable, and compostable. The fibrous product can contain a first plant fiber that is a non-wood fiber.

The present invention discloses a preparation method of a cotton bast fiber and chitosan composite non-woven fabric for filtration and belongs to the technical field of fiber materials. The preparation method adopts steam flash explosion for pretreatment to separate cotton bast first, then a papermaking method is used for forming, finally chitosan is added to enhance the mechanical performance and improve the filtration efficiency, and a technological process is simple, environmentally friendly and suitable for industrial production. The non-woven fabric adopts lignin-rich cotton bast fibers and chitosan as raw materials, so that the non-woven fabric has good antibacterial performance. The cotton bast and chitosan used in the preparation method are both bio-based materials which can be degraded in the natural environment after use, so that burdens caused to the environment are reduced. At the same time, the problem that electrospinning methods are difficult to use in industrialized and mass production is avoided.

The present invention discloses a preparation method of a cotton bast fiber and chitosan composite non-woven fabric for filtration and belongs to the technical field of fiber materials. The preparation method adopts steam flash explosion for pretreatment to separate cotton bast first, then a papermaking method is used for forming, finally chitosan is added to enhance the mechanical performance and improve the filtration efficiency, and a technological process is simple, environmentally friendly and suitable for industrial production. The non-woven fabric adopts lignin-rich cotton bast fibers and chitosan as raw materials, so that the non-woven fabric has good antibacterial performance. The cotton bast and chitosan used in the preparation method are both bio-based materials which can be degraded in the natural environment after use, so that burdens caused to the environment are reduced. At the same time, the problem that electrospinning methods are difficult to use in industrialized and mass production is avoided.

The present invention discloses a preparation method of a cotton bast fiber and chitosan composite non-woven fabric for filtration and belongs to the technical field of fiber materials. The preparation method adopts steam flash explosion for pretreatment to separate cotton bast first, then a papermaking method is used for forming, finally chitosan is added to enhance the mechanical performance and improve the filtration efficiency, and a technological process is simple, environmentally friendly and suitable for industrial production. The non-woven fabric adopts lignin-rich cotton bast fibers and chitosan as raw materials, so that the non-woven fabric has good antibacterial performance. The cotton bast and chitosan used in the preparation method are both bio-based materials which can be degraded in the natural environment after use, so that burdens caused to the environment are reduced. At the same time, the problem that electrospinning methods are difficult to use in industrialized and mass production is avoided.