Abstract: A device measuring the fineness and/or maturity of cotton fibers contains a measuring chamber accommodating a cotton fiber sample and a tubular plunger. The measuring chamber extends between a first end closed by a wall having one or more vent holes and a second end opposed to the first end and hermetically closed. The plunger penetrates within the measuring chamber through the second end to run at least two strokes of predetermined lengths and has an inner channel extending between a tail portion and a perforated head portion placing the inner channel in fluid communication with the measuring chamber. The device further contains a reservoir placed upstream of the inner channel and in fluid communication with the inner channel; a pump filling the reservoir with air from an environment; and a flow regulator placed downstream of the reservoir and upstream of the inner channel.

Abstract: A measuring device for measuring stickiness, imperfections and impurities in textile fibers, such a device includes a housing inside which a pair of rollers are placed, arranged side by side to one another and rotating in opposite senses and between which a web of cotton fibers is made to pass. The rollers are heated, the sticky fractions of the web that adhere to the rollers after the passage of the web between them are detected, and the sticky fractions adhering to the rollers are removed, wherein the heating is controlled by a processing and control unit as a function of the temperature of the rollers detected by a temperature sensor associated with them.

Abstract: A measuring device for measuring the fineness and maturity of cotton fibers is provided. The measuring device includes a measuring chamber; a supply conduit; a flow regulator arranged along the supply conduit; a first pressure sensor upstream of the flow regulator; a second pressure sensor downstream of the flow regulator; an electronic proportional pressure regulator for regulating the air pressure in the supply conduit; and an electronic processing and control unit programmed to control the electronic proportional pressure regulator as a function of the detections of the first sensor and of the second sensor or of the second sensor alternatively and respectively to keep the difference between the air pressure upstream and downstream of the flow regulator or the air pressure entering the measuring chamber substantially constant and equal to a predeterminable value.

Abstract: The present, invention refer(c) to. a measuring device (200) for measuring stickiness, imperfections and imparities in textile fibers, in particular cotton fibers, such a device comprising a housing inside which. a pair of rollers (203a, 203b) are placed, arranged side by side to one another and rotating in opposite senses and between which a web of cotton fibers is made to pass, heating means for heating the rollers (203a, 203b) , detection means (205a, 205b) for detecting the IS sticky fractions of the web that adhere to the rollers after the passage of the web between them, removal means (206a, 205b) for removing from the rollers (203a, 203b) the sticky fractions adhering thereto, wherein the operation of the heating means is controlled by a processing and control unit as a function of the temperature of the rollers detected by temperature sensor means (207a, 207b) associated with them.

Abstract: The present invention refers to a measuring device (600) for measuring the fineness and maturity of cotton fibers, such a measuring device (600) comprises a measuring chamber (CM) into which a sample of cotton fibers can be inserted, the measuring chamber (CM) comprises a first base and a second base that are opposite each other and that can be crossed by an air flow entering the measuring chamber (CM) through the first base and exiting from the measuring chamber (CM) through the second base, a supply conduit (619) having an inlet end associable with an air flow source and an outlet end associated with the first base of the measuring chamber, a flow regulator (611) arranged along the supply conduit (609) between its inlet and outlet ends, a first pressure sensor (612) for detecting the air pressure that is arranged along the supply conduit (609) upstream of the flow regulator (611), a second pressure sensor (613) for detecting the air pressure that is arranged along the supply conduit (609) downstream of the