Abstract: In the jig type textile finishing method and apparatus of the invention, the textile material (19) passes through a heated treatment bath (20) and is rolled alternately in one direction and in the opposite direction with high frequency or microwave electromagnetic waves (24) being applied to said textile material (19) while it is being rolled in and/or out. The power of the waves is determined, as a function of the optimum temperature for the reaction that is to be implemented, in such a manner as to maintain the temperature of the assembly (5, 6) constituted by the rolled-in textile material and the bath in which it is impregnated substantially equal to or greater than said optimum temperature.

Abstract: This invention relates to adsorbing antimicrobial agents contained in a biological fluid by passing the fluid over and through a fibrous material that is free of binding agents and is formed of activated carbon fibers.

Abstract: Apparatus for physicochemical separation and filtering constituents of fluids having a flexible leak-tight or semipermeable casing which tightly envelopes a filter material and inlet and outlet pipes for passing a fluid through the casing in contact with the filter material. The casing is made in a flat profile that can be formed into various shapes such as spirals, ribbons or the like.

Abstract: In the jig type textile finishing method and apparatus of the invention, the textile material (19) passes through a heated treatment bath (20) and is rolled alternately in one direction and in the opposite direction with high frequency or microwave electromagnetic waves (24) being applied to said textile material (19) while it is being rolled in and/or out. The power of the waves is determined, as a function of the optimum temperature for the reaction that is to be implemented, in such a manner as to maintain the temperature of the assembly (5, 6) constituted by the rolled-in textile material and the bath in which it is impregnated substantially equal to or greater than said optimum temperature.

Abstract: The invention relates to the use of the amino groups created on the surface of a polymer material, such as a polypropylene film, by an electric treatment, notably a cold plasma, under nitrogen atmosphere, for accelerating the grafting of the polymer material by impregnating the latter with a bath containing a vinyl type unsaturated monomer comprising a carbonyl group in .alpha. of the double vinyl bond, such as an acrylic monomer.

Abstract: A method for producing a shaped non-woven comprises the steps of feeding fibers on a carding machine over a limited width, superposing on a receiving system the fibrous web leaving the carding machine and needling the superposed layers. The superposition is preferably obtained by winding over a cylindrical drain.The shaped non-woven obtained has a thickness gradually decreasing towards its selvedges. The obtained strip has a cross-section of an asymmetrical shape by longitudinal cutting along the median axis and optionally two longitudinal cuttings on the selvedge side.

Abstract: According to the invention, the treatment process for imparting flame retardancy consists in grafting a textile material containing nitrogen atoms in its polymeric structure, especially silk, with a phosphoric acid ethyenic ester of the general formula ##STR1## in which R.sub.1 is selected from the group comprising H and alkyls and R.sub.2 is selected from the group comprising alkylenes and alkylene oxides and/or polyalkylene oxides, for example phosphated ethylene glycol methacrylate, the grafting rate being less than or equal to 20%.

Abstract: According to the invention the material, in particular a textile, includes in its polymeric structure grafts forming complexes with at least one metal ion possessing recognized antiseptic activity. These grafts are formed by polymerization of unsaturated monomers with a complexing function, including the phosphate of ethylene glycol methacrylate or a polymerizable derivative of quinoline such as acryl 8-hydroxy quinoline. The process of preparation comprises a first step of grafting, for example by electronic irradiation of the material and impregnation with a bath of monomer, and a second step of impregnation of the grafted material with one or serveral baths containing the metal ion(s), such as copper, zinc, tin, mercury.

Abstract: A resonant high-frequency or micro-wave applicator for the thermal treatment of a flat material is disclosed. This applicator comprises a flat capacitor between the plates of which the material moves and an inductor which is constituted by a metal band extending transversely the plate acting as hot electrode. The inner face of the plate acting as ground electrode is divided into elementary sections by an assembly of longitudinal grooves. Preferably, the same applies to the inner faces of the plate acting as hot electrode and the inductor.

Abstract: The invention relates to the use of grafted celluloses, in fibrous form, particularly paper, non-woven web, flock, yarn, woven fabric, comprising quaternary ammonium functions, for eliminating humic substances and nitrates contained in natural water or industrial sewage.The grafted cellulose is for example obtained by radical grafting with the aid of a non-saturated monomer with quaternary ammonium function, particularly quaternized diethyl-amino-ethyl methacrylate.Its capacity is greater than or equal to 0.2 meq/g.

Abstract: The process of treatment according to this invention is applied to a textile piece--weave, knit or finished article--constituted wholly or partly by yarns of continuous filaments with adherent microfilaments, obtained by star--or lamellar spinning, for example comprising six to eight unitary microfilaments of 0.2 to 0.4 dtex. It consists in subjecting said piece, resting on a support screen, to the action of jets of water at a pressure of at least 4.multidot.10.sup.6 Pa, whereby the structure of the piece is modified and the unitary microfilaments are separated.

Abstract: This invention relates toa process for manufacturing a ribbon constituted by at least one yarn impregnated with a thermoplastics polymer, wherein the ribbon is obtained by controlled sheathing of the yarn by the thermoplastics polymer, then passage of the yarn thus sheathed between two rollers crushing the yarn while the polymer is in its plastic state. This is obtained either by heating the rollers, or, preferably, by subjecting the polymer to the action of ultra-sounds during its passage between the two rollers.

Abstract: The apparatus has particular use in the detection of flaws in articles being knitted on a circular knitting machine and aplies in particular to the manufacturing of footwear. The apparatus comprises a light source, an electro-optical sensor receiving light coming from the light source after the light has been reflected by the knitted fabric, or after it has passed through that knitted fabric. Devices are provided for processing the data produced by the electro-optical sensor. According to the invention, there is provided a linear endoscope fixedly mounted along the rotation axis of the machine, whose viewing cone is matched to a distal lens and is oriented radially towards the knitted fabric. The photosensitive zone of the electro-optical sensor is located at the image plane of a lens located at a proximal end of the endoscope.

Abstract: The fibrous polymeric material based on polyvinyl chloride contains at least one antiseptic mercury derivative distributed in its polymeric structure in the form of a substantially molecular and practically non-releasable dispersion.The preferred mercury derivatives have the following general formula: ##STR1## in which Y is H or HgX. If the concentration of the derivative is equal to at least 0.5% by weight, relative to the chlorofiber, the latter has a permanent antiseptic character.This material is obtained by incorporating the above-mentioned derivative into the collodion when the chlorofiber is spun.

Abstract: The thermo-bonding interlining is a nonwoven covered on one face with dots of thermo-bonding resin. According to the invention, the nonwoven is a web, containing no binder or thermo-fusible fibers, whose weight per square meter is between 50 and 150 g, and which is produced from filaments in a thermoplastic material, such as polyester; the mean diameter of the filaments is between 3 and 5 .mu.m, and preferably 90% of the filaments have a diameter comprised between that range; intermingling of the filaments is obtained by streams of high pressure fluid, such as streams of water at pressures of 40 to 80 bars.

Abstract: This invention relates to needling of continuous glass yarn mats.The invention consists in subjecting the mat to the action, preferably simultaneous action, of needles of different diameters. Thus perforations of different dimensions, preferably regularly distributed, are made in the mat.This mat is intended to be used as reinforcement in composite materials with a base of thermoplastic resins, in particular in laminates.

Abstract: The device comprises at least one element for immobilizing certain molecules contained in the medium to be tested. According to the invention, the immobilizing element is in the form of a hydrophilic material fixed on the surface of a plane hydrophobic material, such as for example viscose fibers (2) implanted by flocking into a sheet (3) of polyvinyl chloride. The device (4) further comprises:(a) a bottom plate (5) supporting the plane hydrophobic material,(b) at least one cavity (6) for the liquid medium to be tested, said cavity having an outlet orifice (9) situated above the plane hydrophobic material, and(c) scraping means (8) acting on the hydrophilic material (1) and capable of moving the liquid contained therein over the surface of the plane hydrophobic material (3).

Abstract: The apparatus relates to separation apparatus (1) for separating at least two elements contained in a liquid or gaseous fluid, the apparatus including a separation chamber (60) of adjustable height delimited by a piston (30) slidably mounted in a piston cylinder (2). A variable pressure may be applied to the face (34) of the piston (30) situated outside the chamber (60). The piston cylinder (2) is mounted in a protection cylinder (6) in which a fluid may flow for maintaining a given temperature inside the separation chamber (60).

Abstract: The novel antiseptic mercurial derivatives according to the invention have at least one benzene ring and comprise: a) at least one radical HgX in which X is selected from F,Cl,Br, I, OH, CH.sub.3 COO, CN, SCN, NO.sub.3, OB(OH).sub.2, b) and, bonded to a benzene ring, at least one group--OR or--COOR in which R is a functional group capable of intervening in a reaction of polymerization or of polyaddition. The preferred derivative is 2-chloromercuri 4-tertiobutyl phenol allyl-ether. They may intervene in grafting reactions for the protection of a polymeric support, or in reactions of copolymerization.

Abstract: The invention consists in making an emulsion of a fluorinated product, in the presence of a derivative of morpholine. The derivative of morpholine may be the morpholine itself, a saturated derivative or a non-saturated derivative, for example morpholinoethyl methacrylate. The fluorinated product may be a fluorinated monomer, for example 3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctyl methacrylate. Placing in emulsion is effected by adding to the fluorinated product the derivative of morpholine in the presence of a surface-active agent, and by adjusting, with mechanical stirring, the desired quantity of liquid.