The invention relates to a process (100, 101) for the production of spunbonded nonwovens (1.1, 1.2, 1.3) and a device (200, 201) for the production of spunbonded nonwovens (1.1, 1.2, 1.3), wherein, in the process (100, 101), a spinning mass (2) is extruded through a plurality of nozzle holes (4.1, 4.2, 4.3) of at least a first spinneret (3.1) and a second spinneret (3.2) to form filaments (5.1, 5.2, 5.3) and the filaments (5.1, 5.2, 5.3) are drawn, in each case, in the extrusion direction, with the filaments (5.1) of the first spinneret (3.1) being deposited on the conveyor belt (9) to form a first spunbonded nonwoven (1.1) and the filaments (5.2) of the second spinneret (3.2) being deposited on the conveyor belt (9) to form a second spunbonded nonwoven (1.2) over the first spunbonded nonwoven (1.1) in order to obtain a multi-layered spunbonded nonwoven (10). For increasing the throughput of the process, it is suggested that the multi-layered spunbonded nonwoven (10) is separated into at least the first spunbonded nonwoven (1.1) and the second spunbonded nonwoven (1.2) in a subsequent step and the first and second spunbonded nonwovens (1.1, 1.2) after separation each undergo a hydroentanglement (15.1, 15.2) and optionally a drying (12) individually and/or are each wound up individually.

The invention relates to a process (100, 101) for the production of spunbonded nonwovens (1.1, 1.2, 1.3) and a device (200, 201) for the production of spunbonded nonwovens (1.1, 1.2, 1.3), wherein, in the process (100, 101), a spinning mass (2) is extruded through a plurality of nozzle holes (4.1, 4.2, 4.3) of at least a first spinneret (3.1) and a second spinneret (3.2) to form filaments (5.1, 5.2, 5.3) and the filaments (5.1, 5.2, 5.3) are drawn, in each case, in the extrusion direction, with the filaments (5.1) of the first spinneret (3.1) being deposited on the conveyor belt (9) to form a first spunbonded nonwoven (1.1) and the filaments (5.2) of the second spinneret (3.2) being deposited on the conveyor belt (9) to form a second spunbonded nonwoven (1.2) over the first spunbonded nonwoven (1.1) in order to obtain a multi-layered spunbonded nonwoven (10). For increasing the throughput of the process, it is suggested that the multi-layered spunbonded nonwoven (10) is separated into at least the first spunbonded nonwoven (1.1) and the second spunbonded nonwoven (1.2) in a subsequent step and the first and second spunbonded nonwovens (1.1, 1.2) after separation each undergo a hydroentanglement (15.1, 15.2) and optionally a drying (12) individually and/or are each wound up individually.

A process for the production of a nonwoven fabric. In particular, it relates to the production of a nonwoven fabric having desirable tactile and haptic as well as mechanical properties, as well as to the nonwoven fabric itself. The process requires the selection of specific polylactic acid polymers and corresponding process conditions.

The invention relates to a process (100) for the production of spunbonded nonwoven (1) wherein a spinning mass (2) is extruded through the nozzle holes (4) of at least one spinneret (3, 30) to form filaments (5, 50), the filaments (5, 50) are drawn in the extrusion direction and deposited on a first conveying device (9) to form the spunbonded nonwoven (1), and wherein the spunbonded nonwoven (1) is subjected to at least one washing (10). For increasing the throughput of the process without losses of quality, it is suggested that the spunbonded nonwoven (1) is subjected to the washing (10) at least partially on a perforated second conveying device (13) with a lower conveying speed with respect to that of the first conveying device (9), wherein the spunbonded nonwoven (1) is sprayed with washing liquid during the washing (10) and the washing liquid is discharged at least partially through the perforated second conveying device (13).

The invention relates to a process (100) for the production of spunbonded nonwoven (1) wherein a spinning mass (2) is extruded through the nozzle holes (4) of at least one spinneret (3, 30) to form filaments (5, 50), the filaments (5, 50) are drawn in the extrusion direction and deposited on a first conveying device (9) to form the spunbonded nonwoven (1), and wherein the spunbonded nonwoven (1) is subjected to at least one washing (10). For increasing the throughput of the process without losses of quality, it is suggested that the spunbonded nonwoven (1) is subjected to the washing (10) at least partially on a perforated second conveying device (13) with a lower conveying speed with respect to that of the first conveying device (9), wherein the spunbonded nonwoven (1) is sprayed with washing liquid during the washing (10) and the washing liquid is discharged at least partially through the perforated second conveying device (13).

A smokeless tobacco product includes smokeless tobacco and structural fibers. The structural fibers forming a network in which the smokeless tobacco is entangled. The structural fibers have a composition different from the smokeless tobacco. The tobacco-entangled fabric can have an overall oven volatiles content of at least 10 weight percent. In some embodiments, the structural fibers form a nonwoven network. In some embodiments, fibrous structures of the smokeless tobacco are entangled with the structural fibers.

A smokeless tobacco product includes smokeless tobacco and structural fibers. The structural fibers forming a network in which the smokeless tobacco is entangled. The structural fibers have a composition different from the smokeless tobacco. The tobacco-entangled fabric can have an overall oven volatiles content of at least 10 weight percent. In some embodiments, the structural fibers form a nonwoven network. In some embodiments, fibrous structures of the smokeless tobacco are entangled with the structural fibers.

A method of forming a hydro-patterned nonwoven web including the steps of forming a nonwoven batt comprising continuous spunmelt fibers, calender bonding the nonwoven batt to form a thermobonded precursor nonwoven web with a bond pattern that defines bond impressions and unbonded areas between the individual bond impressions, and hydraulically treating the thermobonded precursor nonwoven by a plurality of steps of water injection as the thermobonded nonwoven web passes over a screen. The bond pattern has specific features that provide advantages in terms of mechanical properties and visual appearance of the final nonwoven product.

A method of forming an apertured hydro-patterned nonwoven web including the steps of forming a nonwoven batt comprising continuous spunmelt fibers, calender bonding the nonwoven batt to form a fully bonded precursor nonwoven web with a regular bond pattern that defines individual bond impressions and unbonded areas between the individual bond impressions, the regular bond pattern having a percentage bond area of 10% to 25%, and hydraulically imparting the fully bonded precursor nonwoven web with a plurality of apertures, the step of hydraulically imparting comprising hydraulically treating the fully bonded precursor nonwoven web by a plurality of steps of water injection as the fully bonded nonwoven web passes over a plurality of pins.

A process (100, 101) for the production of spunbonded nonwoven (1) and a device (200, 201) are shown, comprising an embossing pattern (10), wherein a spinning mass (2) is extruded through a plurality of nozzle holes of at least one spinneret (3, 30) to form filaments (4, 40) and the filaments (4, 40) are drawn by a drawing air stream (5, 50), in each case, in the extrusion direction, with the filaments (4, 40) being deposited on a perforated tray (7) of a conveying device (8) to form a spunbonded nonwoven (1). So as to allow an efficient, technically simple and inexpensive introduction of the embossing pattern into the spunbonded nonwoven, it is suggested that the perforated tray (7) has an embossing structure (9) with an embossing pattern (10), the filaments (4, 40) are pressed into the embossing structure (9) by the drawing air stream (5, 50) and the spunbonded nonwoven (1) thus formed is provided with the embossing pattern (10).