The present invention relates to a bonded nonwoven fabric generally comprising absorbent staple fibres and having bonding stripes of relatively high fibre entanglement density extending along the fabric and into the fabric from at least one face thereof. A method of producing a bonded nonwoven fabric suitable for use as an absorbent layer in a wound dressing is also described.

The present invention relates to a bonded nonwoven fabric generally comprising absorbent staple fibres and having bonding stripes of relatively high fibre entanglement density extending along the fabric and into the fabric from at least one face thereof. A method of producing a bonded nonwoven fabric suitable for use as an absorbent layer in a wound dressing is also described.

An artificial leather is provided in some embodiments of the present disclosure, including: an artificial bio-nutritional fiber layer and a mycelium layer. The artificial bio-nutritional fiber layer includes a first surface, a second surface opposite to the first surface and a plurality of holes, in which the plurality of holes extends from the first surface to the second surface. The mycelium layer encapsulates the first surface and the second surface of the artificial bio-nutritional fiber layer, and extends from the first surface to the second surface through the plurality of holes. A manufacture method of an artificial leather is further provided in some embodiments of the present disclosure.

An artificial leather is provided in some embodiments of the present disclosure, including: an artificial bio-nutritional fiber layer and a mycelium layer. The artificial bio-nutritional fiber layer includes a first surface, a second surface opposite to the first surface and a plurality of holes, in which the plurality of holes extends from the first surface to the second surface. The mycelium layer encapsulates the first surface and the second surface of the artificial bio-nutritional fiber layer, and extends from the first surface to the second surface through the plurality of holes. A manufacture method of an artificial leather is further provided in some embodiments of the present disclosure.

There is provided a system for creating a fibre, the system comprising, a first tube having a first tube outlet for dispensing a first liquid composition at a first dispensing rate; a second tube having a second tube outlet for dispensing a second liquid composition at a second dispensing rate; and a rotatable collector for applying a drawing force to draw and collect the fibre, said rotatable collector being configured to rotate about its longitudinal axis that is aligned substantially parallel to a horizontal plane; wherein the first tube is positioned in proximity with respect to the second tube to allow the first liquid composition from the first tube outlet and the second liquid composition from the second tube outlet to form an interfacial polyelectrolyte complex where a fibre is to be drawn therefrom.

A method for obtaining an elongate polysaccharide element, in particular a chitosan thread, includes extruding a hydroalcoholic extrusible solution containing a polyalcohol of said polysaccharide through an extrusion die, coagulating the extruded solution by neutralization, and at least one operation of removing the polyalcohol. The ratio of water to polyalcohol in the extrusible solution is determined such as to obtain in the elongate element a polysaccharide with the crystalline structure thereof mainly in the form of an anhydrous allomorph. Since the polysaccharide used to prepare the extrusible solution has a weight-average molar mass Mw0, the polysaccharide in the elongate element obtained preferably has a weight-average molar mass Mw1 comprised between Mw0 and 0.7 Mw0. Since the purpose is to obtain a chitosan thread, the latter has properties of mechanical strength and flexibility that allow the thread to be tied into overhand knots and to be woven without breaking.

A method for obtaining an elongate polysaccharide element, in particular a chitosan thread, includes extruding a hydroalcoholic extrusible solution containing a polyalcohol of said polysaccharide through an extrusion die, coagulating the extruded solution by neutralization, and at least one operation of removing the polyalcohol. The ratio of water to polyalcohol in the extrusible solution is determined such as to obtain in the elongate element a polysaccharide with the crystalline structure thereof mainly in the form of an anhydrous allomorph. Since the polysaccharide used to prepare the extrusible solution has a weight-average molar mass Mw0, the polysaccharide in the elongate element obtained preferably has a weight-average molar mass Mw1 comprised between Mw0 and 0.7 Mw0. Since the purpose is to obtain a chitosan thread, the latter has properties of mechanical strength and flexibility that allow the thread to be tied into overhand knots and to be woven without breaking.

An alginate fiber and a preparation method thereof are provided. The preparation method of the alginate fiber includes: S10: preparing a spinning solution with a raw material including sodium alginate; S20: extruding the spinning solution obtained in S10 into a solidification bath to allow solidification molding to obtain a primary fiber; S30: drawing and water-washing the primary fiber obtained in S20 to obtain an alginate fiber; and S40: soaking the alginate fiber obtained in S30 in a finishing agent to allow a post-treatment, where at least one of the raw material in S10, the solidification bath in S20, and the finishing agent in S30 includes a five-membered cyclic quaternary ammonium salt polymer. The alginate fiber obtained above has a high dye uptake, a small fiber strength loss, and a high soaping fastness.

An alginate fiber and a preparation method thereof are provided. The preparation method of the alginate fiber includes: S10: preparing a spinning solution with a raw material including sodium alginate; S20: extruding the spinning solution obtained in S10 into a solidification bath to allow solidification molding to obtain a primary fiber; S30: drawing and water-washing the primary fiber obtained in S20 to obtain an alginate fiber; and S40: soaking the alginate fiber obtained in S30 in a finishing agent to allow a post-treatment, where at least one of the raw material in S10, the solidification bath in S20, and the finishing agent in S30 includes a five-membered cyclic quaternary ammonium salt polymer. The alginate fiber obtained above has a high dye uptake, a small fiber strength loss, and a high soaping fastness.

A gel fiber manufacturing apparatus includes: a first ejection portion configured to eject a main liquid containing a core liquid; a second ejection portion provided to surround a radially outer side of the first ejection portion and configured to eject a sheath fluid that hardens the core liquid; and a sheath fluid supply portion configured to alternately apply to the sheath fluid a constant pressure and a high pressure to supply the sheath fluid to the second ejection portion, the high pressure being higher than the constant pressure.