An aqueous polyurethane dispersion includes particles of polyurethane in water, wherein the polyurethane is derived from an organic diisocyanate, a hydrophilic monomer, a neutralizer, a chain extender, and a polyester resin, the polyester resin being a random copolymer having randomly distributed subunits of formula 1: ##STR00001##
where: R is ethylene, octylene, or decylene, a is from about 40 to about 100 mole % of the polyester resin, b is from 0 to about 30 mole % of the polyester resin, c is from 0 to about 30 mole % of the polyester resin, and a+b+c=100 mole % of the polyester resin.

A shielding device for shielding against weather influences that includes a textile sheet material which is stretched two-dimensionally or can be rolled out and which forms a shield against weather influences, in particular, against solar radiation and/or rain. The textile material has warp threads and weft threads connected together in a lattice-like manner so as to form a fabric. A foam layer which has foam pores that are separated from one another by solid foam walls is applied onto the textile sheet material on at least one side of the textile sheet material.

The present invention discloses a hydrophobic non-woven textile and the method of production thereof, the method for production comprising the steps of providing a fruit or vegetable pomace, comminuting the pomace, mixing the disrupted pomace with a density-modifying agent, dehydrating the disrupted pomace, distributing the water reduced pomace on a surface, drying the distributed water reduced pomace, and coating the non-woven textile with a hydrophobic polymer to provide the hydrophobic non-woven textile.

The present invention relates generally to compositions comprising polyelectrolytes complexes (PECs) of anionic and cationic biopolymers capable of forming barriers on fiber based materials. Also disclosed is a fibre based material with a barrier coating against oil and water, wherein the material is provided with a barrier from at least two layers formed from at least one composition comprising a polyelectrolyte complex (PEC) of a cationic biopolymer and an anionic biopolymer, The two layers result in improvements in both oil resistance and water resistance compared to the same material provided with a single layer of said at least one composition.

The invention relates to a water-repellent and lipophilic composite needle-punched nonwoven fabric and a preparation method thereof. The method comprises the following steps: blending a PET fiber and a polyolefin-based fiber in a mass ratio of 3:1-1:3, and performing needle punching to obtain a composite needle-punched nonwoven fabric; carrying out hot-drying treatment on the composite needle-punched nonwoven fabric at 110-160° C. for 40-90 min; and carrying out water-repellent finishing on the hot-dried fabric using 50-70 mL/L of an aqueous solution of a modified resin-based fluorine-free waterproofing agent, and drying to obtain the water-repellent and lipophilic composite needle-punched nonwoven fabric, wherein the water-repellent finishing is dip rolling, the air pressure is 1.8 kPa and the liquid carrying rate is 160-230%. The preparation method of the invention is simple, and the prepared composite needle-punched nonwoven fabric has significantly improved water repellency, lipophilicity and tensile strength compared with the fabric before treatment.

An interior material of a vehicle includes: a fabric layer made of a tricoat fabric, a foam layer disposed on a lower surface of the fabric layer, and an antifouling layer disposed at least between an upper surface of the fabric layer or the fabric layer and the foam layer. The tricoat fabric includes a combination of at least one of a polyurethane yarn, a high-elongation polyester yarn, or a polyester yarn.

A method of manufacturing a functional fabric includes the steps of: (a) providing an undyed base fabric having a top surface and a bottom surface opposite to the top surface; (b) forming a moisture-permeable waterproof layer on the top surface of the base fabric; and (c) forming at least one pattern layer on at least one of the moisture-permeable waterproof layer or the bottom surface of the base fabric.

The invention relates to a bio-based polyelectrolyte complex (PEC) composition suitable as a binder for fiber based materials, textiles, woven and nonwoven materials, said PEC composition comprising cationic biopolymer, anionic biopolymer, acid and a preservative, and wherein the net charge of the PEC is cationic, the charge ratio of the anionic polymer and the cationic polymer is ≤1, the cationic biopolymer is chitosan, the anionic biopolymer is a polyanion derived from nature, the acid is a Brønsted acid and/or a Lewis acid, wherein the Brønsted acid is selected from any organic and/or inorganic acids, and wherein the Lewis acid is selected from any cationic mono- or multivalent atom, the weight ratio between cation and anion is 1:0.1 to 1:20, the weight ratio between the cation and acid is 1:0.01 to 1:30, chitosan has a degree of deacetylation being 66-100%, the pH is less than 7, and wherein said composition further comprises one or more fatty compounds as well as methods and use thereof. The present invention further relates to a method for preparing the PEC composition, uses of the PEC composition, as well as method of treating materials with the PEC composition.

A surface treatment agent which is an aqueous emulsion containing: (a) a fluorine-free polymer including: (i) repeating units derived from a long-chain (meth)acrylate ester monomer represented by the formula: CH.sub.2═CA.sup.11-C(═O)—O-A.sup.12, wherein A.sup.11 is a hydrogen atom or a methyl group, and A.sup.12 is a linear or branched aliphatic hydrocarbon group having 10-30 carbon atoms; (b) a surface active agent including both of a nonionic surface active agent and an anionic surface active agent, wherein the amount of the anionic surface active agent is at least 22% by weight, based on the total of the nonionic surface active agent and the anionic surface active agent; and (c) a liquid medium comprising water.

A water-repellent fabric includes a base cloth and a water-repellent resin. The water-repellent resin is disposed on the base cloth, in which a method of fabricating the water-repellent resin includes the following steps. A first thermal process is performed to mix a polyol, a cross-linking agent, and a choline to form a first mixture, in which a reaction temperature of the first thermal process is between 90° C. and 120° C. A second thermal process is performed to mix the first mixture and a water repellent to form the water-repellent resin, in which the water repellent includes a hydroxyl group, an amino group, or combinations thereof, and a reaction temperature of the second thermal process is between 120° C. and 150° C.