Abstract: The invention relates to the discontinuous wet treatment of a hank of fabric in at least one cycle of the fabric through a treatment compartment. In order to achieve a rapid and reliable wet treatment with a relatively simple construction, the treatment compartment is divided into two treatment chambers which lie parallel adjacent to one another, so that with each circulation of the fabric two sections of fabric running parallel to one another are treated simultaneously in two similar treatment chambers of the same treatment compartment which serve for the same type of treatment.

Abstract: The invention relates to a method and apparatus for continuous wet-in-wet processing of a length of material in which a continuously regulated additional dosaging occurs using a treatment both of low content, the quantity of treatment liquor added being always exactly the quantity which has just been carried off by the outgoing length of material. In this way the bath concentration can be kept constant with a high degree of accuracy and the balance in the bath is also achieved quickly.

Abstract: The invention relates to a method and apparatus for the discontinuous wet processing of knitted or worked textile material (knitted fabric) (1) which circulates continuously in a tank (2), being passed through a resting zone (7) in the lower region of the tank and through a dipping vat containing a treatment liquor (14). In order in particular to be able to wet process even small production quantities economically, reliably and in open width, the textile material is spread by rollers (12 and 13) in the region of the dipping vat (before it and/or after it) and in the region above this dipping vat it has fluid removed from it by squeezer rolls (15) to a predetermined residual moisture content before it again enters the resting zone (7) in its continuous circulation.

Abstract: The invention relates to the wet processing in particular of knitted tubular material in the broad tubular state which in a first processing section is led through a fluid bath then inflated to form a balloon section and afterwards led in the broad tubular state through the gap between a pair of squeezer rollers. Within the fluid bath the incoming material in hank form is subjected to twist sensing and if any twist is detected the incoming tubular material is rotated in the region before the first processing section to undo the twist. The completely and stably relaxed and untwisted tubular material leaves this first processing section in a stable broad tubular state and can then be passed in an optimum manner through the succeeding principal processing sections.

Abstract: The invention relates to a method and to apparatus for stretching tubular material by blowing in compressed air, in which the delivery speed and/or the removal speed of the tubular material are regulated. In this way, a very uniform stretching of the tubular material is achieved without impairing the surface.

Abstract: The invention relates to a method and apparatus for the treatment of continuously moving tubular fabric (1) in the wet state, in which this tubular fabric is deliberately expanded in an expansion zone (3) by blowing air in and the fabric width (WB) effectively obtained is measured. The actual value obtained for the fabric width is compared with a predetermined theoretical value and in the event that they differ a correction value is formed and the quantity of air blown into the tubular fabric is controlled as a function of this correction value. The tubular fabric (1) is expanded immediately after wet treatment and is then delivered to the expansion zone free of tension and with a sealing material store. In this way a compact apparatus is achieved which functions simply and reliably.

Abstract: The invention relates to apparatus for the continuous wet treatment of a length of tubular material in which a changing device is provided at the inlet and the arrangement for introducing air into the length of material extends over the entire width of the chamber. Such apparatus also permits full utilization of the machine capacity even with narrow material.

Abstract: The invention relates to apparatus for inflating a continuously moving length of tubular material, in which the nozzle tube is rotatable and an arrangement is provided which locks the nozzle tube in an angular position in which the nozzle is in contact with the length of material during the discharge of gas from the nozzle. Such apparatus is distinguished during the greater part of the production time by a considerable reduction in the friction between the length of material and the nozzle tube.

Abstract: The invention relates to a method and to apparatus for washing material wound on a beam, in which from the time at which a specific degree of cleanness has been reached in the central region of the roll length until the end of the washing process the proportion of the washing fluid coming out of the central region of the roll length is returned directly to the beam. In this way water and energy can be saved on a considerable scale.

Abstract: The invention relates to apparatus for the wet treatment of a continuous length of textile material, containing a plurality of chambers through which the length of material flows in succession, in which a fluid connecting channel through which the length of material passes in counterflow to the treatment solution is provided in the region between adjacent chambers. This results in a significant improvement in the exchange of material between the solution and the length of material.

Abstract: Rinsing of textile material is accomplished in a tank having a rinsing zone through which the material passes upwardly from a resting zone. Rinsing fluid is applied to the upwardly moving material exclusively in the rinsing zone and in a quantity greater than that which the material can carry with it during its upward movement.

Abstract: Apparatus for the wet treatment of lengths of textile material in hank form has a plurality of chambers through which the lengths of material pass in succession and transport means which convey the length of material. To enable more or less elastic types of material to be subjected to wet treatment under desired uniform treatment conditions, the quantities of material contained in the individual chambers are monitored by sensing devices which control the rate at which the material is conveyed by the transport means.

Abstract: The invention relates to a process and an apparatus for spreading a moving web of textile material during a treatment by means of fluid streams directed from the middle to the edges of the web. The side edges of the web are probed by sensors which control the fluid streams directed onto the associated edges of the web. In this way, reliable spreading is obtained with minimal outlay, even with different webs of textile material and under varying working conditions.

Abstract: At least one nozzle is provided for supplying a stream of air to tubular knitted textile material. A retaining device, including at least one guide roller, is provided for retaining an air bubble formed in the textile material by the air supplied thereto. Means for controlling the air supply comprises a probing device for measuring said air bubble which is separate from and is located ahead of said retaining device, and includes a feeler element in contact with the side of the air bubble which is remote from said nozzle.

Abstract: An aqueous solution containing impurities such as size is applied to a textile material and the textile material subsequently is exposed to treatment by an organic. solvent. Between the application of the aqueous solution and the exposure of the material to the solvent, the material is exposed to a saturated steam treatment in which the impurities are dissolved or degraded.

Abstract: A process for heat-treating and, in particular, for drying and/or fixing a continuously moved fabric web in a treatment unit comprising at least two treatment zones through which the fabric web successively passes, using a hot gas stream recirculated in the treatment unit, a certain quantity of waste gas being continuously removed from the treatment unit and freed from constituents present in it and some of the waste gas thus treated being returned to the treatment unit after reheating, the rest of the waste gas being released into the atmosphere.

Abstract: Apparatus for drying a continuously moving web containing a combustible organic liquid comprises a walled chamber through which the web passes. Ignition and heating means adjacent the inlet of the web to the chamber initiates combustion of the organic liquid. Enroute to the web outlet of the chamber the web passes between heat radiating members located on opposite sides of the web so as to define between the heat radiating members a main combustion zone. Hot waste gases of combustion are led from the main combustion zone to an after combustion zone defined in part by the heat radiating members and in part by guide members located within the the chamber. The waste gases are drawn through the after combustion zone to waste gas outlets by means of a suction fan, the heat radiating members being heated by the waste gases.

Abstract: Water or organic solvent soluble impurities are removed from textile materials at a treatment zone by applying to the material a first liquid capable of dissolving the impurities, following which a second liquid immiscible with the first liquid is applied to the material to expel the first liquid and the dissolved impurities. The two liquids are then separated and the material is removed from the treatment zone and dried without further contact with the first liquid.

Abstract: A slot nozzle for a flow medium is formed by a pair of side walls joined together by a connecting wall with a weakened zone that forms a hinge between the side walls. The slot width of the nozzle is adjustable by relative adjustment of the two side walls defining the slot, on the one hand by the pressure of the flow medium disposed in the slot nozzle acting in the sense of opening the slot and on the other hand by the counter pressure of a fluid acting in the sense of closing the slot.

Abstract: Apparatus for treating a web of textile material in a dwell zone comprises means for guiding around a closed circuit a plurality of suspension bars for carrying loops of the web of material. The web is fed downward at a fixed entrance point in such circuit to cause each passing suspension bar to pick up a loop of the web and is withdrawn continuously at a point in such circuit immediately preceding such entrance point.