Abstract: When textile materials are treated with wet processes, attempts are usually made to detect organic and inorganic contaminant substances retained in the cloth either by allowing conductivity-measuring or other electrodes placed on the cloth to travel with it during transport, or by analyzing the fluid squeezed out of the cloth. The data obtained by these methods are extremely unreliable and subject to interfering factors. As a substantial improvement, it is proposed that the loading of the cloth with extraneous substances be measured in the interior of the cloth, between or at its surfaces. This can be achieved by applying and collecting solvent to extract samples of the extraneous substances from the cloth, section by section, and measuring the extraneous substances in the collected solvent quantitatively and/or qualitatively.

Abstract: The invention is a mechanical method for measuring the position of a weft thread in a moving textile fabric and aligning the weft thread. The invention is also an apparatus for carrying out the method. The method comprises introducing substantially at points, a tension (in the direction of the weft thread) and to scan at least in two places the forces that appear in the textile and therefrom determine the draft angle. The method also emcompasses stretching the textile sheet with increasing force in the direction of travel over a follower stretching device and measuring the propelling/dragging forces on the stretching device and determining the draft angle from those measurements.

Abstract: The invention is a process and an apparatus for measuring the weft threads and draft angle for a continuously moving textile sheet. At least one long narrow section of the sheet is monitored by transmitted or reflected illumination. The long narrow section has a small width and long length in comparison with the thickness of the weft threads. The longitudinal axis of the section has a defined, constant angle in relation to the transport direction. The illuminated section is monitored by a sensor array. The brightness values within the section are divided in two classes (bright, dark), and those sensors within the field in which brightness values are the same, and that there be determined either the number of (total) length of the sensors within the same class or speed at which the sensors of one class move in the section, and that the draft angle of the weft thread is determined therefrom.

Abstract: A system for measuring the weft or mesh serial position in textiles, in which the angular position of the weft/mesh series is measured for determining the angle of distortion passing over a partial amount of the length thereof, includes an illumination measuring system which measures values of light from a light source either passing through or reflected from the textile fabric to be tested, in a substantially linear range, and an adjusting assembly which reciprocally and oscillatingly rotates the linear range about a central angle to adjust the linear range at an angle relative to the textile fabric; rotating or measuring the reflection or transmission values in several discrete equidistant angular units; a group of memories for storing the measured values corresponding to at least a few angular units; and a digital unit connected to the memories for comparing the stored values in calculating a distortion angle in response to such comparison.

Abstract: For controlling the dye receptivity or color absorption capacity of textile goods by means of air or sound, a web is continually guided between transmitter and receiver, and measured values determined at various locations of the web are compared with each other.

Abstract: For controlling the dye receptivity or color absorption capacity of a running web of textile goods, a monitoring method by means of electromagnetic waves penetrating through the web of goods is used (FIG. 2).

Abstract: The deviation of the weft threads in a fabric is ascertained to show the extent and angle of the deviation relative to a line extending at a right angle relative to the edge of a moving fabric web. For this purpose a sensor head or several sensor heads are movable across the web. Separate signals are produced for the left and right half of the web relative to a longitudinal center line of the web. A comparing unit compares the separate signals for forming a control value or signal.