Abstract: This invention relates to an improved process for providing fibrous polyamide materials and wool materials with stain resistance and superior lightfastness that are more durable against alkaline washing. This is accomplished by treating the materials with an aqueous solution comprising a combination of a partially sulfonated novolak resin, methacrylic polymer and a soluble aluminum compound or a combination of a partially sulfonated novolak resin and a soluble aluminum compound. This invention additionally relates to polyamide and wool materials as treated by the aqueous solution for imparting stain resistance and superior lightfastness.

Abstract: The present invention involves a process whereby fabric constructed of 100% or primarily cotton fabric is treated to produce fabric which will have a predicted degree of shrinkage and density. Garments are constructed oversize from such prepared fabric to allow for the predicted shrinkage. The garments are moisturized within a range of 15%-30% while the garments are being agitated and subsequently tumble-dried. Such garments shall have reduced residual shrinkage of up to 95%, superior hand and appearance.

Abstract: A process for the production of bias-oriented reinforcing fabrics for the manufacture of power transmission belts, hoses and the like. The fabric is initially woven on a high speed, flat shuttleless loom, then immersed in a warm liquid solution to soften the sizing. The fabric is then processed to displace one selvedge longitudinally relative to the other, to achieve the desired bias angle of the weft yarns, usually about 120/60.degree. to the warp yarns. After partial drying, and fine adjustment of bias angle in a weft straightener, the fabric is gripped at its selvedges by a clip tenter and retained with the desired bias orientation while being dried. The dry fabric is substantially stabilized in its desired bias orientation. The selvedge edges are then trimmed off hot knives and the trimmed fabric is collected on a roll for shipment to and use by the belt/hose manufacturer, where it is calendered with a rubber compound and banner cut into rhomboid-like sections.

Abstract: A method for achieving the flame retardancy of polypropylene fiber and for fabrics which include such fibers has been devised which has a low add-on finish. The finish comprises a mixture containing a bromochlorinated paraffin having a high concentration of bromine, up to 80% by weight, but, notwithstanding low add-on, the invention will produce an extremely effective fire retardancy where the bromine and chlorine constituents equal 20% and 40% respecively by weight of the bromochlorinated paraffin. Antimony oxide, preferably a antimony pentoxide is used, having a preferred particulate size in the range of 30-50 millimicrons. The quantity of antimony oxide to be used may be 1/3 mole to 1 mole of bromine. After the bromochlorinated paraffin is combined with emulsifiers to form a stable premix, the premix and antimony pentoxide are preferably combined with a binder consisting of an ethylacrylate latex.

Abstract: In conjunction with a heat-set apparatus for carpet yarns which incorporates a plenum chamber having a porous upper surface in combination with a forced draft system for recirculating the heating medium throughout the length of the heat-set chamber, an improved design of the plenum chamber and the distribution of the medium to compensate for a temperature gradient which has heretofore existed in the heat-set chamber resulting from the introduction of cooled yarn into the chamber. Such temperature gradient has been the cause of dye streaking which occurs when the yarn is subjected to relatively cooler temperature adjacent to the entrance to the heat-set chamber when the machine is stopped.

Abstract: The pile-to-ground warp yarn ratio of terry cloth is controlled during the weaving operation by sensing both the tension imposed on the pile warp and the amount of pile warp yarn dispensed from its supply beam. The sensed information is used to control the speed of a pile warp let-off motor which dispenses the pile warp yarn from its beam. Additionally, the sensed information is employed to selectively alter the displacement of a rocking bar to vary the height of the terry loop formed in the cloth.

Abstract: A process for package dyeing yarn is disclosed. Yarn is wound on a tube having perforations along a portion of its length. The density of the yarn package is such that when dye liquor is circulated from the interior of the tube, through the perforations and then through the yarn, its path of flow is different from when dye is circulated in the opposite direction. By circulating and absorbing dyes of different colors in each direction, multicolored dyeing of the yarn is achieved.

Abstract: An arrangement is disclosed for depositing a color spray pattern on a substrate, such as a carpet. A plurality of dye bars are employed, each feeding a separate row of control valves. The valves are mounted on separate headers which are displaceable through an arc so that the spray of dye passed from each valve through an associate nozzle can be varied from the perpendicular. The result is a variation in spray pattern width and penetration on the substrate.

Abstract: A device is provided for uniformly appyling foam onto textiles. The applicator includes a pair of concentric pipes dimensioned to define a space between the pipes which is filled with a porous material. The inner pipe is provided with at least one longitudinally extending slit angularly offset with respect to a longitudinally extending discharge slit in the outer pipe. Foam supplied to the inner pipe passes through its slit(s), the porous material, and the discharge slit of the outer pipe so as to be deposited on the textile material.

Abstract: An absolute humidity sensor and a thermostat are located in an area where humidity and temperature are to be controlled. Air from this area is circulated through an air washer having a dry bulb temperature sensor at its discharge. Output signals from the absolute humidity and dry bulb temperature sensors are utilized to operate the air washer to control the moisture content of its discharge air. The thermostat operates a bypass damper to control the amount of circulating air which passes through the washer.

Abstract: Phosphate ore is concentrated by flotation in the presence of a half-ester of an organic dicarboxylic acid, such as maleic acid, with a saturated aliphatic alcohol containing at least 11 carbon atoms. Water and oil also are present. The half-ester may be partly neutralized, e.g. with caustic soda, in an amount at most sufficient to raise the pH to 7.0.

Abstract: An elongated manifold is supplied with either foam or liquid under pressure through a plurality of inlet ports spaced along the manifold. The manifold contacts a curved blade along a line substantially parallel to, and below the elevation of, the crest of a horizontally disposed curved blade. The manifold is provided with outlet means above the line of contact whereby foam or liquid discharged from the manifold builds up behind the blade's crest until it overflows the crest to flow as a uniform film onto a web moving past an edge of the blade.

Abstract: A flocked electric blanket construction is provided wherein a fabric substrate woven from filament yarn is interposed between, and is bonded to, layers of foam. The exposed surfaces of the foam are flocked. The substrate includes channels woven into the fabric to receive electrical heating wires.

Abstract: A process for the manufacture of alkyl carbamates from urea and aliphatic alcohols. The process is carried out under a vacuum, preferably at least 20 inches, and preferably in the presence of magnesium oxide catalyst.

Abstract: Either foam or liquid is supplied under pressure to a distributor having a plurality of outlets each connected to a respective passageway extending along one side of a trough. Means are provided to combine the streams of material exiting the passageways prior to the material entering the trough. A curved blade is positioned along the opposite side of the trough. As the trough fills, an overflow of material passes over the crest of the blade and moves along the blade's curvature so as to be uniformly deposited on a web of material moving in a direction normal to the length of the trough.

Abstract: Metered amounts of air and liquid are mixed to produce a foam which is directed to an applicator. The applicator includes an apertured spreading plate, a bed of porous material, and a contour which converges towards a discharge orifice to uniformly distribute the foam across the orifice.

Abstract: In a preferred embodiment of the invention, a manifold in the form of a pipe having a closed end is utilized to supply a finishing agent to orifices arranged at spaced intervals along the pipe. A foam material surrounds the manifold to receive the finishing agent and to apply it in a thin film to the curved surface of an element comprising a longitudinal section of a cylinder. The film is retained on the curved surface by surface tension as it moves under the force of gravity to a longitudinal edge of the cylindrical section. A web of fabric is tensioned against the section edge as the fabric moves past the cylindrical section. The direction of fabric movement is such that the film of finishing agent is applied to the fabric immediately ahead of the line of contact between the fabric and the section edge.

Abstract: Apparatus and method for dyeing carpets and the like in random patterns and multiple colors. Dye is applied in liquid streams from troughs having rollers and doctor blade scrapers. The troughs are arranged in pairs along the path of carpet movement, one trough in each pair being above the other trough of the pair. Dye streams from the pairs of troughs are broken up into droplets before contacting the carpet in such a way as to prevent substantial mixing of the streams prior to contact with the carpet. The particular arrangement of the trough pairs and dye streams results in a dyed carpet of high quality at a substantial savings in equipment cost and quantity of dye used.

Abstract: Flock is treated with a long chain aliphatic acid or a salt of such an acid to control static charges, increase flow and reduce waste. The acid or salt is applied from a solution in a non-aqueous liquid.

Abstract: An improved arrangement for testing the operability of drop wire circuitry associated with yarn handling equipment which does not require yarn movement to be interrupted during tests. A two-position switch operable between normal and test mode positions is included in the circuitry. A jack arrangement is rendered operable with the switch in the test position, thereby permitting an indicator to be selectively inserted in the drop wire circuitry path. The electrical characteristics of the indicator are such as to permit the indicator to be actuated when a drop wire falls while simultaneously disabling the normal response of the remaining drop wire circuitry. Means are provided to selectively bypass the indicator with the switch in the test position to thereby allow the drop wire circuitry to operate as if the switch were in the normal position.