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: A method and apparatus for patterning a substrate wherein liquid unfixed dye is applied to the substrate. One or more streams of pressurized gas such as air then directed onto the substrate for the purpose of displacing some of the unfixed dye where the streams impinge the substrate, thereby causing a visually distinctive area on the substrate where the relative dye concentration is reduced.

Abstract: A process and apparatus is disclosed for dyeing an elongate textile material with different colors at predetermined intervals in a substantially continuous, uninterrupted cycle of operation. The apparatus comprises a plurality of dye baths exchangeable one with another, a nip and guide roll assembly rotatable into dyeing position in timed relation to the particular dye bath which has been exchanged; an orienting guide roll assembly carrying thereon a plurality of guide rolls and a cam plate adapted to retract one of the guide rolls away from the path of dyed material, and a cylindrical drum drier having a plurality of apertures for the passage of dyed and undyed materials, respectively.

Abstract: A method and apparatus for cleaning carpet tiles is disclosed. The apparatus which accomplishes the present method includes a machine having a frame structure, a loading station connected to the frame structure and adapted for receiving a carpet tile, and an unloading station connected to the frame structure and adapted for allowing removal of a carpet tile from the machine. Infeed rollers are provided a cleaning compartment of the machine for continuously propelling a carpet tile from the loading station and over a nozzle bank which subjects the pile side of the carpet tile to a cleaning fluid spray. A scrubbing roller then scrubs the pile side of the carpet tile, and the carpet tile is next propelled over rinsing nozzles which rinse the cleaning fluid therefrom.

Abstract: In order to be able to distribute the stretching forces more uniformly when stretching the fabric web in respect of width in the conical entry area of the tentering frame, the edge zones (14, 14') of the fabric web (2) are sprayed with a hot medium, for example hot weak lye, more heavily than the central zone (19). The already stabilized edge zones thus transmit the stretching forces into the central zone, thus avoiding different spacings between the warp threads after the stretching operation. Differentiated spraying is achieved by means of spray pipes (13) which are arranged in a particular fashion.

Abstract: A method for adjusting the flow and the temperature of wash water when washing out contaminations from fabric webs in textile processing methods upon employing of an open-width washing machine, whereby replacement factors are calculated at different temperatures and the costs of the wash water flow and steam consumption are consequently calculated and the corresponding wash water flow and the corresponding steam delivery are set for minimizing these costs.

Abstract: A method for preshrinking tubular knit fabrics in which the fabric is treated as a continuous length in tubular form. The elongated tube is continuously fed lengthwise into a series of liquid baths which include a wetting agent, scouring and washing constituents and rinses and any finish is to be applied to the fabric. The fabric tube is caused to advance into and through the bath in a substantially tensionless state by pushing the fabric into the flow of liquid and through the bath to avoid applying substantial tension. From the washing and rinsing baths, the saturated fabric is flattened, again without application of substantial tension, and is fed through a two-stage dryer. In the initial stage, the fabric is air-dried to a moisture content of substantially less than 40%. Before introducing the fabric into the second stage of the dryer, the moisture content is raised, for example in a steam atmosphere, to substantially 40%.

Abstract: A method and apparatus for dyeing a substrate using an array of spray generators. In a preferred embodiment, each spray generator is comprised of a gas port from which an intermittent jet of pressurized gas is directed onto the substrate to be dyed. Positioned along the path of the gas jet is a nozzle from which continuously flows a liquid dye. When dyeing is desired, i.e., in response to pattern data, the gas jet is rapidly cycled on and off, thereby atmoizing the dye emerging from the nozzle and establishing discrete bursts of spray which meter a controlled quantity of dye onto the substrate. When the gas jet is interrupted, the nozzle projects an interrupted stream of liquid dye which does not contact the substrate.

Abstract: After leaving the hot lye bath (2) the fabric web (1) is immediately cooled down in a cooling zone (C) and only then passed to a residence zone (5) in which the lye acts on the fabric. Stretcing of the fabric web is then effected in a widthwise stretching zone (E), wherein it is again heated, preferably by a feed of hot weak lye. That combination of method steps provides optimum mercerizing effects with careful removal of shrinkage of the fabric.

Abstract: A process for dyeing crystalline poly(meta-phenylene isophthalamide) fibers with a water-insoluble dye padded onto such fibers by heating with steam at critical temperatures first to activate the dye and thereafter to diffuse it into the fibers.

Abstract: Applying non-treating liquid to a traveling textile fabric substrate during temporary change-over discontinuance of treating liquor application in a textile treating and drying range with the non-treating liquid being applied in an amount sufficient to approximate the amount of treating liquor applied during normal operation of the range so as to allow the dryer to continue operating at substantially normal operating temperatures without damage to the fabric substrate. A non-treating liquid applicator is shifted between an inoperative position out of the path of the textile fabric substrate into an operative position in engagement with the substrate. The applicator includes a roller for arcuate engagement with the substrate and to which liquid is applied by spray and is uniformly distributed by a squeeze roll acting on a cover on the roller of material capable of retaining and transferring liquid onto the substrate.

Abstract: A process and an apparatus for the continuous and controlled application of liquor on an absorptive, compressible material web such as textile webs, warp yarn layers or fleeces. One or more liquors are applied in amounts being comprised between the values of water retention capacity and saturation. The liquor containing web is passed through an equalizing device wherein the web is drawn through an equalizing nip or slit whose thickness is adjustable and smaller than the thickness of the incoming, liquor containing material web. The equalizing may be effected in the nip of two rollers. The liquor concentration in the web before and after the equalizing is statistically the same.

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: This invention provides a method and an apparatus for direct formation of a stripe pattern on a textile substrate such as sliver. The object of the invention is to dispense with a gill which would interfere with a high-speed feed of said textile substrate and thereby improve the efficiency of coloration. In accordance with this invention, a color supply hollow drum (2) and a color suction hollow drum (3) are vetically juxtaposed and a continuous length of fibrous material is continuously fed between said two drums (2), (3) by rotation thereof. As the substrate material is thus fed, a color composition is supplied from color supply grooves (8) of the color supply hollow drum (2) while it is drawn by a suction force acting in color suction grooves (13) of the color suction hollow drum (3) to cause the color composition to strike through the fibrous substrate material to thereby form color stripes of substantially the same configuration as that of the above-mentioned grooves on the fibrous substrate material.

Abstract: In a method and device for the application of foamed or non-foamed flowable substances upon a substrate, where the quantity of the substance to be applied in function of the surface units to be coated is preselected, the flow rate of the material dispenser to the applicator is controlled by a control element and the quality of application is insured by measurements of the application pressure.

Abstract: A method and apparatus for applying a random, speckled pattern of dye to a moving web, such as carpeting. A series of closely spaced distributor units are mounted over the top surface of the web, and each carries a rotating disc, onto which dye material is flowed at a controlled rate. The rotating discs are formed with a highly irregular peripheral contour, such that a high degree of variability and randomness is imparted to the size and trajectory of the atomized dye particles. A significantly improved appearance of randomness in the speckled pattern is achieved.

Abstract: A machine and a method for dyeing fabrics with known dyestuffs in which the fabric has its ends sewn to a leader and forms an endless loop that continually passes through a scray and dyeing stations such as a padder, a foam applicator, a steamer, and a washbox, with the dyestuff of the stations being replaceable during the passing of the leader with which substantially small fabric dyelots may be dyed in a continuous machine that can process variable length lots.

Abstract: Process for the purification of products of regenerated cellulose in which the regenerated cellulose product is passed through at least one washing segment where it is initially squeezed out with the aid of a squeezing element and then washed out with the washing water, passed in counter current, while simultaneously being deflected over deflection elements.

Abstract: A chemical, such as a dye, is applied to a textile substrate, such as carpet, by continuously moving the substrate past an application position. At the application position a liquid formulation containing the chemical, heated to a temperature below the boiling point thereof, is sprayed toward the substrate, thereby driving the chemical into the substrate. The temperature of the spray is controlled such that the dye contacts the substrate at a temperature sufficient to achieve substantially instantaneous fixation.

Abstract: A system for the uniform distribution and delivery of foam finish to a fabric is disclosed. The system includes a pressure manifold for delivery of foam under pressure to a moving fabric which includes inner and outer concentrically disposed conduits. The inner conduit receives foam under pressure from both ends and has an effluent port along the length thereof supplying foam to the outer conduit. The outer conduit includes a slotted port along the length thereof for delivery of foam under pressure to a moving fabric passing across the slotted port. The pressure manifold may include a sleeve which is adjustably positioned to seal the end portions of the slotted port depending on the width of the fabric being foam finished. The system may include two such pressure manifolds, arranged in parallel crosswise to the moving fabric, to apply foam simultaneously to both sides of the fabric.

Abstract: A continuous process and an apparatus for effecting, in direct succession a dyeing and backing of a carpet, for example, in the process, the dyeing step is performed with a minimum application of dyeing liquor, making it possible to effect backing wet-on-wet without a washing step and an expensive drying procedure. The dyeing step can also be directly preceded by the carpet manufacturing process within the framework of a continuous installation.

Abstract: Apparatus and method for removing real or false twist from a moving fabric in rope form. Fabric is moved along a first path followed by second and third generally vertical paths which define a fabric loop. A twist removal device is located along the first fabric path to remove twist from the fabric. A fabric opening or spreading unit is located along or downstream of said third path with a twist detector located between the fabric opening unit and the nadir of the fabric loop, preferably adjacent the location where the fabric is just begins to spread for detecting direction and magnitude of any twist remaining in the fabric. Controls are operatively associated with the twist detector means and the twist removal device to control further twist removal responsive to detected remaining twist in the fabric.A preferred twist detector includes spaced parallel cylindrical rolls contactable with the fabric rope on opposite sides thereof.

Abstract: An apparatus for dyeing leather has an application roller and a backup device defining a gap therebetween. The application roller has recesses, and dye is supplied to it to fill the recesses. Sheet articles, e.g. leather pieces, are fed through the gap. The apparatus is operated so that a uniform coating of dye is continuously spread over one surface of the article by the application roller. The dye can have a low viscosity comparable to that of water.

Abstract: A method and apparatus for sequentially performing dye strikes on a continuous dye range from a plurality of dye lots to reduce downtime of the range. The apparatus employs two dye pans that are horizontally and vertically movable relative to the dye pad on the range so that each can be sequentially moved into and out of a dyeing position while the machine is running and fabric continues to move therethrough. The textile material includes a leader section ahead of the fabric to be dyed in a desired strike order, such as, for example comprised of three leaders with first and second dye strike patches positioned therebetween in order to provide first and second strikes or runs on a continuous basis without stopping the dye range.

Abstract: A method for continuous liquid treatment of a cloth comprising transporting a cloth soaked with a treating solution continuously under width expansion by the use of a tenter while subjecting the cloth successively to wet heat treatment by jetting high temperature hot water thereto and drying the resultant cloth by jetting hot blast thereto. Under certain circumstances, it is preferably to swell the cloth by applying high temperature hot water thereto after the cloth is soaked with the treating solution for expanding width of the cloth and/or to dry the cloth tentatively before the wet heat treatment thereof for preventing the peeling off of the treating agent applied to the cloth.

Abstract: The invention is a method and apparatus for treating a permeable web with a fluid. The apparatus has a rotatable drum with a fluid permeable endless belt reeved about at least a portion of the drum circumference. Two or more spaced-apart press rolls bear against the outer surface of the belt, pressing it against the drum with sufficient force to form nip zones. A belt position control mechanism gives the belt limited freedom of radial movement away from the drum in the area between the nip zones. This permits a gap of controllable dimension to form between the drum and the belt. The gapped region defines a volume which creates a permeable web treating zone. The drum surface has at least one row of spaced apertures located entirely around its circumference. These apertures communicate with a fluid supply system which can supply treating fluid under pressure outwardly through the surface apertures into the treating zones between the press rolls.

Abstract: Method and apparatus for impregnating tubular fabrics wherein the fabric is driven over an elongate driving member extending through an impregnation station by means of a transport layer or tube extending between said fabrics and said guiding member and driven to transport the fabric through the impregnating station.

Abstract: The present invention is directed to a method of caustic alkali treatment, wherein the knitted work extended in the lengthwise direction and shrunken in the widthwise direction due to the scouring (or degumming) and the bleaching treatment is, after being returned to the condition of the length and the width before the scouring (or degumming) and bleaching treatment, able to be subjected to the caustic alkali treatment and the washing treatment as it is in such a natural state as when it is knitted by a knitting machine, whereby the knitted work is never short of width as is the case with the prior art method of treatment.

Abstract: Textile fabrics are dyed in open widths in a closed, heated environment by spraying a heated dye composition containing a dyestuff dispersed in a non-aqueous, high-boiling solvent, without the dye applicator directly contacting the fabric, directly onto the fabric. The sprayed fabric is held under transverse tension in a heated (350.degree. to 450.degree. F.) environment and further heated while the sprayed dye dispersion migrates, penetrates thoroughly through the fabric and levels substantially evenly across the width of the fabric. Fabrics are thus simultaneously uniformly dyed and uniformly heatset. Apparatus for conducting the process is also disclosed.

Abstract: A carpet dye beck is provided with submerged combustion heating apparatus for heating dye solution in the dye beck, by discharging pressurized high-temperature gas directly into the dye solution. The discharge of pressurized high-temperature gas directly into the dye solution provides bubbling of the gas through the solution, with turbulent agitation of the dye solution, and promotes high-efficiency, cost effective heating of a dye bath.

Abstract: A method for the continuous and uniform application of controlled amounts of treating liquor on a liquid receptive material web comprising passing the web over a counter-roll having a resilient, non-skid surface and then passing the web onto an applicator roll with a metallic cylinder surface that has been dipped into a vat of treating liquor and making the treating liquor a uniform film on the roll. The treating liquor is tested before use by placing a quantity of the liquor in a mixing container, rotating the container for a first period and measuring the volume of treating liquor plus foam that develops in the container, and making two subsequent volume readings after further periods of time, adding all of the volume readings and comparing the sum with a standard value, and also determining that each volume reading is less than the preceding reading, and rejecting treating liquor which does not meet the foregoing requirements.

Abstract: Apparatus and method for removing real or false twist from a moving fabric in rope form. Freely rotatable, diagonally opposite elements are located on opposite sides of an fabric path of travel. Each element has a helically wound fabric contact member therearound with the helix direction of the diagonally opposite elements being the same. Fabric passing between the elements and engaging the contact members of the elements imparts rotation to the elements while the contact members impart rotation to the fabric for twist removal. A twist direction detector is located downstream of the elements to detect any remaining twist in the fabric, and a twist measurement sensor is located downstream of the twist detector to determine the amount of any remaining twist.

Abstract: A method and apparatus for coating the back of carpet products providing improved control over coating weight, uniformity, and penetration. A layer of adhesive is formed on a rotating coating roll, and the upper edge of an applicator blade is brought into contact with the coated roll. The layer of adhesive is transferred to the upper edge of the applicator blade and flows under the effect of gravity to the lower edge of the blade. The back of the carpet is then pressed against the lower edge of the blade, simultaneously applying and spreading the adhesive.

Abstract: A process for washing textile material wherein a non-foamed washing liquor, combined with a foam-producing chemical, is applied to a continuously fed textile material, the foam is produced on the textile material by effecting alternating compression and pressure relief of the textile surface while simultaneously loosening the dirt, and finally the foam, and thus the dirt dissolved in and taken up by the foam, is removed by suction.

Abstract: Process and apparatus for applying in a continuous and level manner aqueous impregnating liquors to water-wet textile goods to prevent unlevelness of the liquor applied to the goods. This is accomplished by partly or completely exchanging the moisture on the goods by sucking or pressing liquor through the goods and by circulating the liquor to be applied while maintaining its volume and concentration at a constant value. The new technique makes it possible to dispense with the customary intermediate drying stage after the pretreatment.

Abstract: Apparatus for applying a foamed medium to a running workpiece has a tubular housing which is disposed in the interior of a rotary screen and forms part of a slotted squeegee whose outlet allows the foamed medium to flow from the interior of the housing against the internal surface of the screen. The outlet contains one or more deflectors in the form of shoulders, bars, rods or other types of obstacles which prevent the medium from flowing along a straight path from the opening or openings of the housing directly against the internal surface of the screen. This reduces the likelihood of non-uniform application of the medium to the workpiece.

Abstract: Two linear arrays of foamed dyestuff dispensing nozzles reciprocate 180.degree. out of phase normal to the path of a carpet web being dyed. Each array dispenses streams of foamed dyestuff over a gum coated web in alternate groups of first and second colors, the second array dispensing its dyestuff superimposed over the dyestuff dispensed by the first array. The same dyestuff color groups overlap in spaced repeating regions of the carpet web while different colors overlap in the remaining regions to provide a fully dyed web having the appearance of repetitive spaced regions of either the first or the second colors.

Abstract: The crease displacement and the achievable dilution factor in the conventional continuous pretreatment or aftertreatment operations of fabric ropes with liquid means in rope washers are not adequate, and consequently the water consumption necessary for satisfactory results is too high. To date the existing problems can only be solved with squeeze rollers which, however, have an adverse effect on the goods.According to the invention the textile rope is now introduced into a treatment store of a liquid-operated jet apparatus, is subjected to the action of the treatment liquor, is then carried along by a steam- or more generally gas-operated jet arrangement and conveyed into an interim store, where dewatering takes place. From the interim store the goods, with satisfactory dilution factor, are then passed to the next isothermal or non-isothermal treatment stage of the same or a very similar structure.

Abstract: The invention is concerned with a method of producing in-line dyed fibers, in a gel state, characterized in that it essentially consists of extruding the spinning dope in a coagulum bath, stretching the resulting filaments, scrubbing said filaments to remove residual solvent, passing the resulting filament tow through a dyeing bath at an overall rate in excess of 4 cm.sup.3 bath per second per square centimeter of tow surface area. The overall rate, being preferably in the 4 to 10 cm.sup.3 /sec per cm.sup.2 range, is achieved by means of crossflows to the forward advance direction of said tow, and alternately directed to and from said tow, the tow residence time in the dyeing bath being no longer than 5 seconds. The tow is then subjected to a dye fixing heat treatment, and is then scrubbed, finished, and dried. The method is particularly suitable for use with substantially acrylic and modacrylic fibers.

Abstract: The method of dyeing a continuously moving carpet pile fabric with a base color and thereafter applying other color dyes onto the base color and fixing all of the dyes without the use of steam. The dyeing process employs a dye applicator to which a heated dye solution is supplied and this dye is sprayed onto the carpet while at a temperature of approximately 185.degree. F. to 205.degree. F. to provide the base color. The base color dye is applied with a wet pick-up of approximately 200 percent to 300 percent. Thereafter while the carpet is still hot from the wetting by the hot dye, other color dyes at substantially ambient temperatures are independently sprayed onto the carpet at spaced locations while the carpet is still in the temperature range of approximately 165.degree. F. to 175.degree. F. The total amount of additional dye applied subsequent to the base color dye provides a wet pick-up of approximately 120 percent.

Abstract: The method of dyeing a continuously moving carpet pile fabric with a heated base color dye and either thereafter applying other color dyes onto the base color or applying the other color dyes prior to the base color, all of the dyes being fixed by the heat of the base color dye and without the use of steam. The dyeing process employs a dye applicator to which is heated dye solution is supplied and this dye is sprayed onto the carpet while at a temperature of approximately 185.degree. F. to 205.degree. F. to provide the base color. The base color dye is applied with a wet pick-up of approximately 200 percent to 300 percent. The other color dyes, which are pattern colors, at substantially ambient temperatures are independently sprayed onto the carpet at spaced locations either before the heated dye is applied or subsequent to the hot dye while the carpet is still in the temperature range of approximately 165.degree. F. to 175.degree. F.

Abstract: Methods and apparatus for fixing dye to pile fabrics such as carpet material by employing the electrical conductivity of the wet carpet itself for the purpose of heating the carpet and dye to a temperature sufficient to fix the dye. The present apparatus, in the space of several feet along the length of a continuous carpet treating apparatus, performs the same function as a conventional carpet steamer, which is typically several hundred feet in length. In one specific form, the electric current is passed in a direction through the thickness of the carpet employing a pair of flat plate-like electrodes which contact the front and back surface of the carpet. In another specific form, the electric current is passed through the carpet in a direction generally parallel to a surface of the carpet, e.g. longitudinally, employing electrodes on the back surface of the carpet which do not disturb any pattern which may be printed on the carpet during the dyeing process.

Abstract: The disclosure relates to a method for pad batch dyeing of tubular knitted fabrics of substantial cotton content, typically 50% or more. One or more connected strings of tubular knitted fabric are advanced toward the dyeing apparatus, where the fabric is gripped across its full width and positively advanced toward the dye solution. A ring guide spreader is positioned in close coupled relation to the driven entry roller and spreads the fabric to flat form and to its natural greige width. Closely coupled to the ring guide means is a dye pad station comprising a pair of horizontally opposed, resilient squeeze rollers, a treating roller forming a submerged dye nip with the front squeeze roller, and a submerged guide roller to receive the fabric as it travels in a downward incline through the dye nip and redirect it to a vertically upward path for passage through the squeeze nip.

Abstract: A versatile carpet dyeing applicator capable of producing novel and visually pleasing multicolor pattern effects ranging from apparently completely random to fairly well-defined. An inclined distributing plate such as a conventional doctor blade extends across the width of the carpet web, transverse to the direction of web travel, with a lower edge of the distributing plate positioned so that dye flowing off falls on the carpet web. Means, such as a conventional dye pickup roller rotating in a dye supply trough, introduces liquid of a base color onto the distributing plate at an upper edge thereof to form a base color dye film initially flowing substantially uniformly downwardly over the distributing plate.

Abstract: A plurality of jet gun bars are spaced apart along the path of travel of a textile material and responsive to pattern data to form patterns on the material. Each gun bar stores and supplies different color dyestuff to color the material. A computer, on each periodic request, supplies pattern data to a predetermined number of gun bars, thereby providing dyestuff to different pattern lines for each request. During a change from printing one pattern to printing another different pattern, for each such request the computer provides data for the other pattern to a first predetermined number of gun bars and data for the one pattern to a second predetermined number of gun bars subsequent to the first number, thereby simultaneously completing the printing of the one pattern and starting the printing of the other pattern.

Abstract: There is effected an accelerated direct neutralization in-situ of the substrates which are impregnated with alkaline hydroxide which is free or fixed on the cellulose, by contact with a neutralizing fluid containing carbon dioxide in a gaseous, aqueous or combined phase, this fluid being introduced in accordance with requirements related to the quantity of alkali to be neutralized. The process may be used in the textile industry in continuous and discontinuous treatments and is adaptable to all types of textile machines employing an aqueous method.

Abstract: In a process for mercerizing cellulosic cloth by treating the cloth with 3-10% caustic solution at the boil in a boilout stage, washing the cloth after treatment in the boilout stage and treating the washed cloth with 20-25% caustic in a mercerizer, an improvement comprises the steps of:(a) collecting overflow from the boilout stage, contaminated with additives used in weaving or knitting the cloth;(b) treating the contaminated overflow from the boilout stage by hyperfiltration to produce a recovered fraction of relatively pure caustic solution and a concentrate fraction containing additives used in weaving or knitting the cloth;(c) washing the cloth after treatment in the boilout stage with the recovered fraction of relatively pure caustic from step (b).

Abstract: Two or more liquid treating agents which are to be applied to a stationary or running substrate are formed ahead of a collecting unit which thereupon admits a foamed compound composition into the applicator wherein the composition passes through the interstices of a screen so that it is reconverted into a liquid prior to contacting the substrate. The collecting unit can comprise or may be followed by a mixer, depending upon whether or not the constituents of the compound composition are to be converted into a homogeneous foam. The collecting unit receives discrete streams of foamed treating compositions, e.g., in the primary colors, from discrete foam generators each of which is followed by a storing device and by a regulating device, such as a valve which is adjustable by hand and/or by a computer.

Abstract: A method of carpet treating and apparatus for the dyeing of intricate patterns is provided wherein a plurality of spray nozzles are disposed in a spray line transverse to the direction of movement of a carpet. Each spray nozzle is connected to a mixing chamber where air and treating liquid preferably dye, are applied at selected pressures between 0 and 60 p.s.i. Depending on the relative pressure of the air and liquid dye, the mixture is caused to be either atomized or foamed through the spray nozzles onto the face of a moving carpet web. Each nozzle is connected to its own separate mixing chamber the input of which are controlled through a corresponding control valve which turns on and off the spray nozzle by opening and closing a corresponding gas valve and corresponding dye valve.

Abstract: A method of treating carpet and apparatus for dyeing of carpet is provided wherein a plurality of spray nozzles are disposed in a spray line transverse to the direction of movement of a carpet. Each spray nozzle is connected to a mixing chamber where air and treating liquid, preferably dye, are applied at selected pressures between 0 and 60 p.s.i. Depending on the relative pressure of the air and liquid dye, the mixture is caused to be either atomized or foamed through the spray nozzles onto the face of a moving carpet web. Each nozzle is connected to its own separate mixing chamber the input of which are controlled through a corresponding control valve which turns on and off the spray nozzle by opening and closing a corresponding gas valve and corresponding dye valve.