Abstract: The invention relates to a process and a device for the winding-up of textile yarn.The process includes winding-up by double drive, namely peripheral and axial drive, according to which, in a first phase, the torque supplied by the axial drive is decreased progressively to zero, and in a second phase, the rotation of the take-up package is effected by the single peripheral drive.Preferably, the device used is a gas turbine, the inlet pipe to which is progressively obstructed.The invention applies to winding-up of chemical textile yarns.

Abstract: An apparatus for cutting textile strands and forming the cut strands into bundles including a means for supplying the textile strands. A means for positioning the textile strands funnels the textile strands into a grouping of substantially parallel strands having a substantially cylindrical cross-section. A means for wrapping the parallelly arranged strands places a wrapper of paper around the strands and secures it by adhesive. A capstan guides the parallel strands to an accumulator pipe which has at its end a means for cutting the strands. The strands are held and retained so that a blade can cut them and the ends of the strands of the bundle are joined by adhesive or heat. An adhesive strip is tangentially attached to the sides of the bundles so that they may be wrapped around a rotating shaft.

Abstract: Pile textile elements are disclosed in which heat fusible textile filamentary materials are assembled in a bundle wrapped in a plastic envelope. The filaments are held together at one end only of the bundle by fusing the ends of the filaments and the plastic envelope while they are in contact, under pressure, with a heated flat surface. The fused end of the bundle forms a base to facilitate handling of the pile textile element, and also facilitating securing the element to a suitable backing, such as a textile backing, furniture, bedding, etc., in a conventional manner.

Abstract: Bicomponent filaments are produced by separately melting the polymers, and passing the sparingly cross-linked polybutylene terephthalate through a plurality of channels in a distribution plate in the form of a jet or stream, which is then introduced into a cavity between the distribution plate and the spinneret plate of the spinneret assembly. The molten polyethylene terephthalate is separately introduced into the cavity between these plates, wherein it surrounds and envelopes the jets of sparingly cross-linked polybutylene terephthalate. The jets of polybutylene terephthalate, and accompanying polyethylene terephthalate, then pass through bores in the spinneret plate, which are of larger diameter than the aforesaid channels, with each bore associated with a corresponding channel. The axis of each bore is displaced from the axis of the corresponding channel at least the distance equal to the differences between the radius of the bore and the radius of the channel.

Abstract: New compounds are disclosed for obtaining novel polymeric flameproofing agents. The former are diphenols of the general formula: ##STR1## where n=0 or 2. The latter are aromatic polyphenylphosphonates having recurring units of the general formula: ##STR2## in which n equals 0 or 2, and are obtained by reacting (I) with phenylphosphonyl chloride. The latter are especially useful for the flameproofing of polyester and finished or shaped articles based on polyester.

Abstract: A process for the preparation of texturized multifilamentary polyester yarn possessing a stable crimp, in which the yarn passes first through a crimping device comprising an injector where the yarn is subjected to a stream of hot fluid which separates the filaments, and thereafter through a stacking nozzle to cause crimping, characterized in that the fluid is fed in at a temperature below the second order transition temperature of the polyester yarn, which feeding temperature is usually between 95.degree. and 220.degree. C., and in that the stack, after it issues from the nozzle is kept in the compressed state, subjected in this state to a high pressure of the order of 20 to 200 kg/cm.sup.2, and kept at ambient temperature or subjected to a heat treatment at a temperature below the second order transition temperature of the polyester yarn, which is usually at a temperature of up to about 220.degree. C., for a period of time ranging from one minute to 150 minutes.

Abstract: A process for producing shaped articles of cellulose is disclosed, wherein a solution of cellulose in dimethylsulphoxide (DMS0) and formaldehyde, at a formaldehyde/cellulose weight ratio of 0.2 to 2, and at a cellulose concentration of at least 6% by weight based on the volume of DMSO, is spun into a coagulant bath. The coagulant bath contains water, DMSO and ammonia or an ammonium salt, with the DMSO present in an amount of about 25 to 60 weight percent of the mixture of DMSO and water. The ammonia or ammonium salt is present in an amount, calculated as ammonia, of at least 1 gram per liter in the mixture of DMSO and water.The use of the coagulant bath of the present invention permits the cellulosic solution to be formed into shaped articles, and especially into filaments which are useful in the textile field. Other shaped articles which can be made from the cellulosic solution include fibers, threads, membranes, films, and sheets.

Abstract: A process is disclosed for converting a bis-(diol) terephthalate to dimethyl terephthalate, by interchange in a methanol medium in the presence of magnesium methylate as catalyst. In this way dimethyl terephthalate may be regenerated from scrap of polyterephthalate or copolyterephthalate filaments or films, for the purpose of manufacturing fresh polyterephthalates or copolyterephthalates which can then be used for the manufacture of, for example, filaments or films.

Abstract: An irrigating device formed from an absorbent product, such as a polymeric pulp or hydrophilic textile contained within a filtering envelope, such as a woven, knitted or non-woven fabric. The device is placed in the ground in communication with a source of water which may be above or below ground. The irrigation device provides for a uniform rate of irrigation of the soil in which it is placed, requires less water than conventional irrigation devices providing the same overall coverage, and is not subject to dogging or blockage, as with conventional irrigation devices.In one embodiment for preparing the irrigation device, the absorbent product is in the form of a tow of hydrophilic continuous filament and the textile filter envelope is produced in a continuous in-line operation in conjunction with the production of the tow.The irrigation device can be applied to the irrigation of soils to facilitate the growth of plants, trees, crops and the germination of seeds.

Abstract: Sandy terrains are fixed against displacement by the wind of the sandy soil using at least one non-woven textile filament network. Erosion of the soil is thereby prevented or at least significantly reduced. The network is preferably formed from a tow of artificial or synthetic textiles in the form of continuous threads which are separated first into locks which are fixedly positioned in the ground and then the locks are separated or opened to form a regular or irregular open network.Application of the non-woven network for fixing the surface soil of sandy zones prevents erosion and improves the planting and development of vegetation and crops.

Abstract: A chair is disclosed which includes a filled seat portion and a filled back portion joined by a unitary, non-articulated semi-rigid connection integral with the seat portion and the back portion, the connection having a rebate therein, for example in the form of a step, a triangle, an arc, or a continuation thereof.

Abstract: A new process of adhesive-coating which makes it possible to increase the adhesion of glass fibers to rubbers based on natural rubber. The fibers are impregnated by means of a composition consisting or consisting essentially of a solution containing a resorcinol/formaldehyde resin, a natural latex, a latex based on vinylpyridine and, preferably, ammonium hydroxide, and while passing through the coating bath they are subjected to vibratory movements communicated directly to the fibers. The glass fibers adhesive-coated in this way are of great interest to the rubber industry in the manufacture of tires, conveyors, conveyor belts, hoses and the like.

Abstract: New method of manufacturing polyesters and copolyesters having a base of aromatic diacids and condensation diols having at least 3 carbon atoms.This method, carried out in the presence of an organic titanium derivative, by transesterification between an alkyl ester of the aromatic diacid and the diol, and then polycondensation, is characterized by the addition, during the polycondensation stage, of 0.001 to 1% by weight of a nonvolatile amine, based on the weight of polymer.The polymers obtained may be transformed into threads, fibers, films or molded objects.

Abstract: Bicomponent polyester fibers exhibiting a hand similar to wool, a crimp contraction less than 60%, and a crimp frequency of at least 7 half-waves per centimeter, and the process for producing the same, are disclosed.These crimped bicomponent fibers are useful in the textile field, particularly to at least partially replace the wool in polyester/wool blends.

Abstract: The present invention relates to an adhesive-coating composition for increasing the adhesion of heat-stable, high-modulus, modal, polyester-based yarns and glass fibres towards compounded rubbers based on natural rubber and on synthetic rubber, said composition comprising a solution of a precondensed resorcinol/formaldehyde resin, a latex based on vinylpyridine and polychloroprene latex, 28% strength ammonium hydroxide and a dicarboxylated butadiene/styrene resin. Yarns and fibres coated with the adhesive-coating composition of the invention are useful in the manufacture of tires, conveyors, conveyor belts, hoses and the like.

Abstract: A process for producing shaped articles of cellulose is disclosed, wherein a solution of cellulose in dimethylsulphoxide (DMSO) and formaldehyde, at a formaldehyde/cellulose weight ratio of 0.2 to 2, and at a cellulose concentration of at least 6% by weight, based on the volume of DMSO, is spun into a gaseous atmosphere containing ammonia.The process of the present invention permits the cellulosic solution to be formed into shaped articles in a very rapid and economical manner. The invention is especially useful in the production of filaments which can be used in the textile field, but other shaped articles, such as fibers, threads, films and sheets, can also be made from the cellulosic solution.

Abstract: The invention relates to elongated textile elements having one or more thickened portions along its length, processes for their manufacture and the articles produced with such elements.The element is characterized in that it consists of an assembly of substantially parallel yarns of high bulk, which possesses, over its length, at least two compressed zones of low diameter separated by a bulky zone of high diameter.These elements, used by themselves or in association with other materials, make it possible to obtain very decorative articles suitable for garments and especially for furnishings such as tapestries, wall coverings, seat covers and the like.

Abstract: A process for producing shaped articles of cellulose is disclosed, wherein the process includes steps of contacting a shaped solution of cellulose in DMSO and formaldehyde, containing at least 6% by weight of cellulose based on the volume of DMSO, and containing formaldehyde in a weight ratio of formaldehyde/cellulose of about 0.2 to about 0.6, with a coagulating solution of DMSO and water at a temperature no greater than 10.degree. C. The coagulant bath generally contains 30 to 50% by weight of DMSO, and the solutions are readily coagulated at coagulation speeds appropriate for commercial practice, and generally the coagulation occurs in less than 20 seconds.The products produced by the present process are shaped articles such as filaments, fibers, films, sheets and membranes, and especially filaments which are suitable for use in the textile field.

Abstract: Spinnable, shapable solutions of celluose are disclosed, wherein the solutions contain native cellulose in a mixture of dimethylsulphoxide (DMSO) and formaldehyde. The cellulose has a degree of polymerization (DP) of at least 400 and a concentration in the mixture of at least 6% by weight, based on the volume of DSMO. The formaldehyde/cellulose weight ratio is 0.2 to 2, and the solutions have a water content no greater than 5,000 ppm by weight.The solutions are obtained by dissolving the cellulose in a mixture of DMSO and formaldehyde, at a formaldehyde/cellulose weight ratio of at least 1, and thereafter the formaldehyde/cellulose weight ratio is reduced, if necessary, to the final level of about 0.2 to 2.The solutions can be converted into films, membranes, sponges, varnishes, paints, and especially into filaments, with the filaments being generally similar in properties to regenerated cellulose filaments.

Abstract: A size composition is described which is capable of increasing the adherence, and particularly the adherence to rubber, of multifilament yarns having a base of polyester, a base of polymers of high modulus of elasticity, or a base of thermostable polymers, wherein said size composition contains tris(epoxypropoxy 2,3)3-propionyl 1,3,5-hexahydro-s-triazine as preadhering agent, preferably present in an amount between 1 and 30% based on the weight of the size composition. The treated yarn is thereafter bonded to a desired substrate, such as rubber.