A fiber treatment agent can provide artificial hair fiber with softness. The fiber treatment agent includes a cationic polymer having a structural unit derived from diallyldimethylammonium chloride (DADMAC), and content of the cationic polymer is 0.02 to 0.5 weight %. The cationic polymer preferably has a structural unit derived from acrylamide. Preferably, the fiber treatment agent further includes an antistatic agent, and content of the antistatic agent is 0.2 to 5.0 weight %.

An aqueous binder composition. The aqueous binder composition is obtainable by radically initiated polymerization of vinyl acetate and ethylene, in the presence of polyvinyl alcohol in an aqueous medium, wherein (a) 50 to 94 wt % of vinyl acetate, (b) 5 to 40 wt % of ethylene, (c) 0.2 to 5 wt % of acrylamide and/or methacrylamide, and (d) 0.2 to 5 wt % of maleic anhydride and/or maleic acid are copolymerized in the presence of a polyvinyl alcohol having a degree of hydrolysis of 80 to 99 mol %. The amounts in wt % are each based on the total weight of the comonomers and add up in each case to 100 wt %.

The present invention relates to a biomaterial fabrication process for the manufacture of a collagen based fabric for an aligned collagen fiber network.

A water repellent composition containing: (A) water repellent particles in which the number of surface alkyl groups on the water repellent particles is 600×10.sup.18-50,000×10.sup.18 per 1 g of water repellent particles; (B) a water-repellent resin which is a polymer having a long-chain C.sub.7-40 hydrocarbon group; and (C) a liquid medium. The water-repellent particles preferably have an average primary particle size of 1-100 nm. Also disclosed is a method for treating a fiber using the water repellent composition, a method for producing a treated textile product, a film formed from the water repellent composition, and a textile product treated with a treatment liquid containing the water-repellent composition

Provided is a water repellent composition which does not use a fluorine-containing monomer, especially a fluoroalkyl group-containing monomer. A water repellent composition which contains (1) (a) a polymer which has a repeating unit derived from an amide group-containing monomer that is represented by formula: ##STR00001##
(wherein R1 represents an organic residue having an ethylenically unsaturated polymerizable group; R2 represents a hydrocarbon group having 7-30 carbon atoms; and R3 represents a hydrocarbon group having 1-5 carbon atoms) in an amount of 2-100% by weight relative to the polymer, and (2) a liquid medium.

Provided is a water repellent composition which does not use a fluorine-containing monomer, especially a fluoroalkyl group-containing monomer. A water repellent composition which contains (1) (a) a polymer which has a repeating unit derived from an amide group-containing monomer that is represented by formula: ##STR00001##
(wherein R1 represents an organic residue having an ethylenically unsaturated polymerizable group; R2 represents a hydrocarbon group having 7-30 carbon atoms; and R3 represents a hydrocarbon group having 1-5 carbon atoms) in an amount of 2-100% by weight relative to the polymer, and (2) a liquid medium.

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.

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.

Compositions and methods are described that provide cellulosic and non-cellulosic fabrics with durable antimicrobial properties. Application of a coating that includes polyhexamethylene biguanide, polyethylene glycol, and a binder to a fabric followed by drying and curing was found to provide antimicrobial properties that are retained through over 100 washings under aggressive hospital washing conditions. In addition, tactile properties and tear resistance of the treated fabrics are maintained or improved.

Provided is an adhesive composition capable of achieving excellent adhesion and mechanical stability even when it contains no formalin or resorcin. The adhesive composition contains (A) rubber latex, and (B) a compound having an acrylamide structure.