Abstract: Sheets of flash-spun polyolefin plexifilamentary film-fibril strands are subjected to impact-energy by columnar jets of water and are then impregnated with organic resin to provide sheet of high abrasion resistance and a wide range of desirable porosity.

Abstract: A composite fabric and its method of disposal after use. Garments, linens, drapes, towels and other useful articles are provided as the composite of a reusable first component and a woven, non-woven, knitted or otherwise formed fabric of thermoplastic polyvinyl alcohol polymer as a second component. The second component is water soluble in temperatures above approximately 140.degree. F. After use, the composite is subjected to water of sufficient temperature to substantially dissolve the thermoplastic polyvinyl alcohol component but not the reusable first component.

Abstract: A fire-proof buri filament material making process includes steps of obtaining buri fibers by dipping a smashed rattan buri in a salt and dilute hydrochloric acid solution, drying the buri fibers, dipping the well-dried buri fibers in a heated hydrogen peroxide dilution, boiling the buri fibers in a pigment dye, glycerin and soda water solution, dipping the colored buri fibers in a solution containing ammonium phosphate and borax at the ratio of 3:1 for 30 minutes in forming into buri filaments, drying the buri filaments and cutting them into the desired length and binding them up with iron wires in forming into bunches of buri filaments. The invention also relates to the buri filaments made according to the aforesaid process.

Abstract: A cover for a sanitary napkin or other absorbent product is provided which includes an outer layer of a hydrophobic material. The outer layer contains fluid passageways which are small enough so that the outer layer alone will not pass liquid therethrough. A second, liner layer is bonded to the interior surface of the outer layer and is comprised of a nonwoven web which is at least slightly wettable so as to draw liquids through the passageways of the outer layer. The liner layer contains large capillaries so that at least a majority of the liquid entering the liner layer from the fluid passageways will pass through the liner to the absorbent core of the product.

Abstract: Drawing, especially cold-drawing, or hot-drawing or other heat-treatments of spin-oriented crystalline polyester filaments, and particularly polyester feed yarns, that have been prepared by spinning at speeds of, e.g., 4 kg/min, and have low shrinkage and no natural draw ratio in the conventional sense, provides useful technique for obtaining uniform drawn filaments of desired denier and thereby provides improved flexibility to obtain filaments and yarns of various denier. The resulting uniform filaments have useful properties that are improved in certain respects.

Abstract: A papermaking fabric and method therefor is disclosed which may be used as a support fabric or a carrier fabric for paper material on a papermaking machine. The fabric, designated generally as (A) includes a first layer (B) of warp yarns (32, 34, 36, and 38) extending in a machine direction. A second layer (C) of warp yarns (42, 44, 46 and 48) is included in the fabric vertically spaced from the first layer. The warp yarns of the first and second layer form stacked pairs (52, 54, 56, and 58) which reinforce the fabric in a machine direction to enhance its stability. At the same time, the stacked pairs may be spaced apart in a cross-machine direction sufficiently to provide a desired degree of openness and fabric permeability. Fabric openness in the range of thirty percent or more of the total fabric area can be had in accordance with the fabric of the present invention without sacrificing the structural stability.

Abstract: A textile finishing agent is described which contains a water-soluble polysiloxane with polyether and epoxypolyether lateral chains and preferably moreover an antimicrobial substance, a crosslinking agent and catalysts.

Abstract: An insect repellent fabric has a coating containing permethrin and a plasticizer, and a barrier covers the coating to protect the permethrin from degradation by ultraviolet light and oxygen. The barrier may be an acrylic coating or film, aluminum foil, a urethane coating or film, or an outer fabric barrier such as an awning or a tent fly.

Abstract: A composition capable of being applied as a film and hardening to form a protective layer on the back of a mirror comprises a fluid organic resin and a corrosion inhibitor selected from the group consisting of dicyandiamide and metal or acid salt thereof. The organic resin may be any thermoplastic or thermosetting resin suitable for coating the reflective and other metallic layers of the mirror. Exemplary resins include alkyd resins, acrylic resins, modified alkyd resins, polyesters, urethane oils, vinyl halide polymers or copolymers, oleoresinous varnishes, nitrocellulose compositions, phenol-formaldehyde resin varnishes, and epoxy resins. Preferably, the resin is an alkyd or modified alkyd resin. The dicyandiamide or metal or acid salt of dicyandiamide may be present in an amount from about 0.1 to 20 weight percent, preferably 0.5 to 10 weight percent, of the organic resin coating system. The resin system should be essentially free of lead and lead salts.

Abstract: An elastic warp knitted fabric having a pulling out force for pulling out an elastic yarn from the knitted fabric of 30 g or more, and in which a shape of a sinker loop of a nonelastic yarn is maintained as a bulge shape after an application of a dyeing and finishing treatment. This elastic warp knitted fabric can be manufactured by using a specially prepared dyeing and finishing treatment, so that the sinker loop of the nonelastic yarn can be maintained in the treatment.

Abstract: The invention discloses a composite material 1 comprising essentially a mixture of hydroexpandable powder and thermobonding powder, sandwiched between two flat solid supports, one at least of which is at least partially hydrosoluble.This material can be used in agriculture, medicine, surgery, in the hygiene field and in the cable, particularly electric cable, industry. In this application, when water penetrates into the cable, the at least partially hydrosoluble support or supports release the hydroexpandable powder which rapidly forms a pad preventing propagation of the water through the cable.

Abstract: An insulating element for buildings and more particularly for walls, ceilings and roofs, consists of a sheepswool fleece which is sandwiched between two layers of needled non-woven material consisting of sheepswool. The fleece and the needled non-woven material are connected together by fibers thereof to constitute a unit able to be handled as such.

Abstract: An organic thermal reservoir padding material containing a hydroxyalkylcellulose compounded with an alkylene glycol yields a dry, consolidated core material. Best results are obtained in a formulation comprising about 4 parts by volume of hydroxyethylcellulose and about 3 parts by volume of propylene glycol. The resultant organic compound (Table I) is non-toxic, solid, nontacky, dry and moldable into a solid structural form. A freeflowing, unconsolidated thermal reservoir material is produced by mixing about 2 parts by volume hydroxyethylcellulose with about 1 part by volume propylene glycol and about 1/4 part by volume bicarbonate of soda.

Abstract: A method of forming substantially continuous filaments which involves the steps of (1) extending a molten thermoplastic polymer through a die having a plurality of orifices to give a plurality of substantially continuous filaments; (2) quenching the filaments by contacting them with a quenching fluid having a temperature less than that of the filaments and a zero to high imposed velocity which, if other than zero, has a component which is in a direction other than parallel with the movement of filaments; (3) entraining and drawing the filaments in a nozzle with an attenuating liquid having a linear speed of at least about 400 feet/minute; and (4) collecting the drawn filaments. The filaments have an average diameter in the range of from about 5 to about 75 micrometers and a high variability of filament diameter from filament to filament and along the length of any given filament. In addition, at least some of such filaments are present as filament bundles.

Abstract: A self-hardened, high temperature-resistant, foamed composite is described. An alkali metal silicate-based matrix devoid of chemical water has dispersed therein inorganic particulates, organic particulates, or a mixture of inorganic and organic particulates, and is produced at ambient temperature by activating the silicates of an aqueous, air-entrained gel containing matrix-forming silicate, particulates, flyash, surfactant, and a pH-lowering and buffering agent.

Abstract: The invention concerns an interfacing for stiffening outer garments which is formed from a composite of a nonwoven textile (19), a warp knit fabric with synthetic multifilament threads and weft threads (20). The composite according to the invention contains a loosely bonded nonwoven fabric (19 ) of fibre count 1 to 5 dtex and weight class 30 to 150 g/m.sup.2, a warp knit fabric of warp thread count 20 to 80 dtex, set of the warp 40 to 70 threads per 10 cm and fibre count 1 to 3.5 dtex and resilient weft threads (20) incorporated into each stitch course of the warp knit fabric of thread count 300 to 2000 dtex, set of the weft 70 to 130 threads/10 cm and, for a fibre proportion in excess of 50% by weight, a fibre count of 7 to 60 dtex.

Abstract: Blends of nylon 6,6, nylon 6 or nylon 6,6/6 copolymer which contain a randomly copolymerized cationic dye modifier are formed by melt blending such copolymer with a polyamide, having 8 to 22 carbon atoms per amide link to form a block copolymer composition which is resistant to staining with acid dyes under ambient temperature and pH conditions.

Abstract: A method of producing crimped tow by continuously feeding a tow against an adjustable counter pressure means; the tow is maintained at an average predetermined thickness and steam enters the chamber and is exhausted from the chamber in a manner to provide uniform heating of the tow to provide a fiber that is uniformly annealed as determined by measuring light reflectance for yarn dyed with a structural sensitive Milling Blue "B" dye or shrinkage uniformity determined by thermal analysis.

Abstract: An overlay of sheet material that is impregnated with thermosetting resin--typically a fabric of a type including metallic, synthetic fiber, natural fiber and ceramic cloths impregnated with epoxy resin--is wrapped about or laid on an underlay of material that is also impregnated with thermosetting resin--typically a resin material reinforced with fibers of the graphite, glass, aramid, or ceramic types. The overlay and underlay are cured under heat and pressure in an oven at the same time, causing cohesive bonding of the resin within each. The resin exudes through the fabric overlay during curing and forms a hard transparent shell of cured resin to the composite article. The embedded sheet material selectively imparts color, pattern, texture, reflectivity, penetration resistance, tensile strength, thermal and electrical conductivity, and other visual and mechanical properties to the composite article as desired.

Abstract: A papermakers fabric and method of designing and manufacturing same which exhibits high tolerance to temperature and/or moisture variation and as a result, retains dimensional stability avoiding these problems. A specific fabric construction is selected having a defined machine direction (MD) and cross machine direction (CMD) yarn components. A mathematical model of the selected fabric structure is then defined in terms of the dimensions of the yarn components in relationship to the machine direction length of the fabric. The percent change in fabric length is then determined as a function of both the dimensions and the expansion characteristics of the MD and CMD yarns. The fabric is then designed to have calculated expansion characteristics within selected tolerances.