Provided are a process, the process includes (i) first, contacting a textile with an aqueous solution containing a cationic hydroxyethylcellulose polymer to form a modified textile component; (ii) subsequently, impregnating the modified textile component with an aqueous polyurethane dispersion externally stabilized with an anionic surfactant, the aqueous polyurethane dispersion including a second surfactant; and (iii) precipitating the polyurethane in the modified textile component. Also disclosed are a synthetic leather produced by the process.

A graphene material coating and a preparation method thereof pertain to the technical field of air filtration, and relates to an air filtration device and system based on the graphene material coating. The preparation method of the graphene material coating includes the following steps: S1), preparing a slurry dispersion stock solution: adding a dispersant and a binder to a solvent, and stirring to form the slurry dispersion stock solution; and S2), forming a graphene surface coating: adding a graphene powder to the slurry dispersion stock solution, and after being homogenized by stirring, coating a homogenate on a surface of a carrier, and drying to obtain a finished product of the graphene material coating. This technique can increase the adsorption rate of harmful substances in the gases and avoid secondary pollution caused by unstable adsorption.

The present invention is to provide a method for manufacturing synthetic leather in which, after obtaining a thickened liquid by adding a thickening agent (B) with an oxyethylene group content of 2×10.sup.−2 mol/g or less to an aqueous urethane resin composition containing an aqueous urethane resin (A) having an acid value of 0.01 mgKOH/g or higher in a range of 0.01 to 30 parts by mass relative to 100 parts by mass of the aqueous urethane resin (A), the thickened liquid is coated on a base and coagulated with a coagulating agent (C) containing a metal salt (c-1). As the thickening agent, it is preferable to use one or more kinds of thickening agent that is selected from the group consisting of a cellulose thickening agent, an acryl thickening agent, and a urethane thickening agent. Furthermore, as the metal salt (c-1), calcium nitrate is preferable.

The disclosure provides flexible, hydrophobic textiles, methods of producing the textiles and uses of the textiles. The flexible, hydrophobic textiles feel and behave like leather. The textiles are prepared from a symbiotic culture of bacteria and yeast and are reacted with silica sol.

The disclosure provides flexible, hydrophobic textiles, methods of producing the textiles and uses of the textiles. The flexible, hydrophobic textiles feel and behave like leather. The textiles are prepared from a symbiotic culture of bacteria and yeast and are reacted with silica sol.

The present invention is to provide a method for manufacturing synthetic leather in which, after obtaining a thickened liquid by adding a thickening agent (B) with an oxyethylene group content of 210.sup.2 mol/g or less to an aqueous urethane resin composition containing an aqueous urethane resin (A) having an acid value of 0.01 mgKOH/g or higher in a range of 0.01 to 30 parts by mass relative to 100 parts by mass of the aqueous urethane resin (A), the thickened liquid is coated on a base and coagulated with a coagulating agent (C) containing a metal salt (c-1). As the thickening agent, it is preferable to use one or more kinds of thickening agent that is selected from the group consisting of a cellulose thickening agent, an acryl thickening agent, and a urethane thickening agent. Furthermore, as the metal salt (c-1), calcium nitrate is preferable.

A superhydrophobic surface includes a substrate treated with a composition including a hydrophobic matrix component free of fluorine; filler particles, wherein the filler particles are plant-based elements of a size ranging from 100 nm to 100 m; and water, wherein the hydrophobic component is in an aqueous dispersion, and wherein the surface exhibits a water contact angle of 150 or greater. Also, a disposable absorbent article includes a substrate having a surface, the surface including a composition including a hydrophobic matrix component free of fluorine; filler particles, wherein the filler particles are plant-based elements of a size ranging from 100 nm to 100 m, wherein the plant-based elements include micro- and nano-fibrillated cellulose; and water, wherein the hydrophobic component is in an aqueous dispersion, and wherein the surface exhibits a water contact angle of 150 or greater.

A superhydrophobic surface includes a substrate treated with a composition including a hydrophobic matrix component free of fluorine; filler particles, wherein the filler particles are plant-based elements of a size ranging from 100 nm to 100 m; and water, wherein the hydrophobic component is in an aqueous dispersion, and wherein the surface exhibits a water contact angle of 150 or greater. Also, a disposable absorbent article includes a substrate having a surface, the surface including a composition including a hydrophobic matrix component free of fluorine; filler particles, wherein the filler particles are plant-based elements of a size ranging from 100 nm to 100 m, wherein the plant-based elements include micro- and nano-fibrillated cellulose; and water, wherein the hydrophobic component is in an aqueous dispersion, and wherein the surface exhibits a water contact angle of 150 or greater.

A method for processing plant material for converting such material into a product with leather-like properties comprises chemical processing, or tanning, of the plant material to convert same into a feather-like material. The method comprises at least the steps of chemical processing, drying, and welding. The end-product is characterized by its similarity to leather and may be used in diverse areas of industry, such as clothing, footwear, bags, accessories, furniture, inter alia.

A method for processing plant material for converting such material into a product with leather-like properties comprises chemical processing, or tanning, of the plant material to convert same into a feather-like material. The method comprises at least the steps of chemical processing, drying, and welding. The end-product is characterized by its similarity to leather and may be used in diverse areas of industry, such as clothing, footwear, bags, accessories, furniture, inter alia.