A wiping sheet includes a patterned part of a fiber assembling base material and a non-patterned part of the fiber assembling base material. The patterned part includes cellulose nanofiber; and the non-patterned part does not include the cellulose nanofiber.

A composite material contains a nonwoven layer (i) which contains fibers formed from a first thermoplastic elastomer having meshes with a mesh size in the range from 10 to 100 μm, and a membrane layer (ii) which contains a second thermoplastic elastomer and having a layer thickness of less than 30 μm. The membrane is either pore-free (ii.1) or is porous and has pores with an average pore diameter of less than 2000 nm (ii.2). The membrane (ii) is at least partially in direct contact with the fibers of the nonwoven layer (i) and covers the mesh openings in the nonwoven layer (i) at least partially. The fibers of the first nonwoven layer (i) and the membrane (ii) in the contact area are at least partly joined to one another in an interlocking manner.

A method for producing a support for polyurethane-based imitation leather free of dimethylformamide or other solvents or water involves preparing a base. A two-component polyurethane layer is sprayed on the base which includes preparing a first component and a second component. The first and second components are combined to obtain a mixture, and the mixture is sprayed uniformly on the base forming the polyurethane layer. A backing is applied on the two-component polyurethane layer forming a support and the support is dried.

A nonwoven fabric for manufacturing an oral pouched product, where the nonwoven fabric is chewable to increase its liquid permeability. When the nonwoven fabric is used to form a pouch, it may thus control the release of substances from within the pouch. The nonwoven fabric can be formed by applying a diffusion restricting treatment to a base nonwoven fabric. The diffusion restricting treatment may include any of (a) incorporating a digestible compound; (b) incorporating a superabsorbent polymer; (c) incorporating a hydrophobic material; and (d) forming a deformable barrier layer.

Coated articles include a substrate and a periodic mesoporous organosilica layer adhered to a surface of the substrate. The coated articles may further include a secondary silane layer covalently attached the periodic mesoporous organosilica layer. Depending on the compositions of the layers, the combination of the periodic mesoporous organosilica layer and the secondary silane layer renders the surface of the substrate superhydrophobic or omniphobic. Methods for coating a surface of a substrate include contacting the surface with a mixture of a hydrolyzed organosilane and a poloxamer and curing the mixture on the surface to form a PMO-coated substrate. The methods may further include contacting the PMO-coated article with a secondary silane coating solution of one or more silanes, then curing the secondary silane coating solution to form a dual-coated article comprising a secondary alkylsilane layer covalently attached to the periodic mesoporous organosilica layer on the surface of the substrate.

The invention relates to a method for coating textiles and/or leather, comprising applying at least one polyurethane urea dissolved in a solvent or solvent mixture, wherein the solvent consists of one or more monohydroxy-functional alcohols, or a solvent mixture consisting of organic solvents, containing >80 wt. % of at least one monohydroxy-functional alcohol in relation to the total mass of the solvent mixture is used, and wherein the polyurethane urea is formed by: a) at least one araliphatic, aliphatic and/or cycloaliphatic diisocyanate; b) at least one polyether polyol having a number average molecular weight M.sub.n≧400 and ≦6000 g/mol and an average hydroxyl functionality of ≧1.5 and ≦4; c) at least one amino-functional compound having at least two isocyanate reactive amino groups; and optionally other components. The invention also relates to a textile or leather coating produced using this method and a dissolved polyurethane urea, and to the use of the polyurethane urea for coating substrates and for producing free films.

A composite material contains a nonwoven layer (i) which contains fibers formed from a first thermoplastic elastomer having meshes with a mesh size in the range from 10 to 100 μm, and a membrane layer (ii) which contains a second thermoplastic elastomer and having a layer thickness of less than 30 μm. The membrane is either pore-free (ii.1) or is porous and has pores with an average pore diameter of less than 2000 nm (ii.2). The membrane (ii) is at least partially in direct contact with the fibers of the nonwoven layer (i) and covers the mesh openings in the nonwoven layer (i) at least partially. The fibers of the first nonwoven layer (i) and the membrane (ii) in the contact area are at least partly joined to one another in an interlocking manner.

The invention relates to a fabric for lightweight nautical sails, such as spinnakers, asymmetric spinnakers, and gennakers, for sailboats and other surface vessels, the fabric being formed of continuous polyester warp and weft yarns and being coated on one or both of its two surfaces with a crosslinked polymer, characterised in that the polyester is poly(ethylene terephthalate) (PET) having a tenacity greater than or equal to 6 cN/dtex; in that the fabric has a density of between 20 and 50 threads/cm, in terms of warp and weft density; in that the polymer is a crosslinked polyurethane (PU) that is polyether-, polyester-, or polycarbonate based; and in that this PU is derived from the crosslinking (1) of a single-component polyurethane elastomer having a modulus at 100% elongation comprised between 1 and 15 MPa, better still between 2 and 15 MPa, in particular between 6 and 15 MPa, according to the standard DIN 53504, used in implementation in solvent phase; and (2) by a crosslinking agent, based on a proportion of dry crosslinking agent relative to the dry elastomer of between 20% and 75% by weight, in particular between approximately 30% and approximately 75% by weight. The coated fabric has an elongation in the bias direction under 20 Lbs, comprised between 10 and 30 hundredths of an inch.

Provided are a sound-absorbing membrane, a sound-absorbing material, and methods of manufacture therefor that can provide suitable sound absorbing performance, suppressed deterioration in appearance quality, and easy production. A sound-absorbing membrane 10 includes: a base sheet 11 made of a nonwoven fabric having a airflow resistance of 0.01 to 0.1 kPa.Math.s/m; and a resin film 12 covering one surface of the base sheet, the resin film 12 made of a thermosetting resin in a semi-cured state. Fillers 13 made of powder having an average particle diameter of 1 to 100 m are dispersed in the resin film 12. The sound-absorbing membrane 10 has a whole airflow resistance of 0.2 to 5.0 kPa.Math.s/m. A sound-absorbing material 20 includes a sound absorbing base sheet 21 made of a porous material, and the sound-absorbing membrane 10 laminated on one surface or both surfaces of the sound absorbing base sheet 21 such that the resin film 12 faces the sound absorbing base sheet 21, the sound-absorbing material 20 has a predetermined shape.

The present disclosure relates to a nonwoven fabric having enhanced withdrawal force for a carpet backing fabric, which is composed of a nonwoven fabric comprising 50 to 90% by weight of polyester filaments having a melting point of 250 C. or higher and 10 to 50% by weight of low-melting point copolyester filaments having a melting point of 200 C. or lower. According to the present disclosure, a nonwoven fabric comprising low-melting point polyester fibers is used as a backing fabric and the thickness of the backing fabric is controlled, so that the withdrawal force of carpets is enhanced, thereby suppressing the falling out of BCF yarns from the carpet.