Techniques are directed to operating a crimping apparatus, and to a crimping apparatus for crimping a fibre strand having at least two driven rollers and a stuffer box. A nip is formed between the rollers and is sealed off at the end faces of the rollers by press plates. The press plates at the start of the process are temporarily actively pressed against the end faces of the rollers by press actuators, and, once a contact position has been reached, are held in place by generation of a clamping force by clamping actuators. Each press plate, in addition to a press actuator, is thus also associated with a clamping actuator for clamping of the press plate, the press actuators and clamping actuators being controllable by at least one control unit.

Techniques are directed to operating a crimping apparatus, and to a crimping apparatus for crimping a fibre strand having at least two driven rollers and a stuffer box. A nip is formed between the rollers and is sealed off at the end faces of the rollers by press plates. The press plates at the start of the process are temporarily actively pressed against the end faces of the rollers by press actuators, and, once a contact position has been reached, are held in place by generation of a clamping force by clamping actuators. Each press plate, in addition to a press actuator, is thus also associated with a clamping actuator for clamping of the press plate, the press actuators and clamping actuators being controllable by at least one control unit.

A tow band (TB) for use in a cigarette filter is a tow band in which a plurality of filaments (F) made of cellulose acetate fibers are bundled together and crimped. In the tow band, a filament denier is not less than 6.0 and not more than 11.0, a total denier is not less than 5,000 and not more than 15,000, and a Cv value of the number of crimps of the tow band is not more than 4%.

A tow band (TB) for use in a cigarette filter is a tow band in which a plurality of filaments (F) made of cellulose acetate fibers are bundled together and crimped. In the tow band, a filament denier is not less than 6.0 and not more than 11.0, a total denier is not less than 5,000 and not more than 15,000, and a Cv value of the number of crimps of the tow band is not more than 4%.

This invention relates to a crimped lyocell tow for use in stretch breaking, worsted or semi worsted spinning, its manufacture and use.

This invention relates to a crimped lyocell tow for use in stretch breaking, worsted or semi worsted spinning, its manufacture and use.

The present invention relates to an apparatus (100) for crimping a sheet of material (6), the apparatus comprising: a first (9) and a second (10) facing crimping rollers defining a first (1) and a second (22) rotational axis, respectively, the first and second axis being parallel to each other, wherein at least one of the first and second crimping roller includes a plurality of corrugations; an angle changing device, the angle changing device being adapted to change a crimping angle (11) formed between a fixed reference plane (12) and a movable plane (13) containing the first and the second rotational axis.

A lyocell material for a cigarette filter and a method of manufacturing the same are disclose. The lyocell material which is biodegradable and eco-friendly can be manufactured by crimping lyocell multifilaments to obtain a crimped tow.

A lyocell material for a cigarette filter and a method of manufacturing the same are disclose. The lyocell material which is biodegradable and eco-friendly can be manufactured by crimping lyocell multifilaments to obtain a crimped tow.

The invention provides for a method of delaying and reducing texture reversion of a textured artificial turf yarn (145), characterized by using a stretched and textured monofilament yarn as the textured artificial turf yarn, the stretched and textured monofilament yarn comprising a polymer mixture (400, 500), wherein the polymer mixture is at least a three-phase system, wherein the polymer mixture comprises a first polymer (402), a second polymer (404), and a compatibilizer (406), wherein the first polymer and the second polymer are immiscible, wherein the first polymer forms polymer beads (408) surrounded by the compatibilizer within the second polymer.