774results about "Stain/soil resistant fibres" patented technology

A fluorochemical composition for rendering fibrous substrates oil repellent, water repellent, and/or stain repellent and comprising a fluorinated polymer dispersed in water or dissolved or dispersed in an organic solvent, the fluorinated polymer comprising units derived from (i) a mixture of two or more fluorinated polyether monomers that differ in at least their molecular weight, the fluorinated polyether monomers having an ethylenically unsaturated group and a perfluorinated polyether group and wherein at least 90% by weight of the mixture consists of fluorinated polyether monomers that have a perfluorinated polyether group having a molecular weight of at least 750 g/mol and (ii) one or more units derived from one or more co-monomers other than a fluorinated polyether monomer and wherein the co-monomers comprise at least one non-fluorinated monomer. Also, method for treating fibrous substrate with such composition, fluorinated polyether monomers, and fluorinated polymers derived from such monomers.

The invention relates to a low temperature high elastic type waterproof antifouling water-based polyurethane finishing agent preparing method and product. The method comprises the steps of preparing raw materials, and dewatering polyether triol and polyether diol; enabling the polyether triol and the polyether diol to be in performed reaction with end hydroxyl polysiloxane linear bodies and diisocyanate under catalysis of polymerization catalyst so as to obtain performed polymers; conducting chain extension on the performed polymers and chain extenders with the existence of diluents to obtain intermediates; conducting end capping on the intermediates and fluorine alkyl alcohol, and then adding reaction termination agents to end reaction; adding neutralizing agents, diluents, and water and emulsifying so as to obtain the low temperature high elastic type waterproof antifouling water-based polyurethane finishing agent emulsion product which is a main chain end hydroxyl polysiloxane modified ionic water-based polyurethane polymer material containing perfluorinated alkyl end groups, is used for processing of various textile coating and artificial leather dry coating, and can endow products with good waterproof antifouling performance, low-temperature high elastic characteristic and bending resistant performance.

The present invention relates to monomers and polymers of Formula (I):

where R³ is selected from H or a C₁ to C₄ alkyl group; Y is selected from O or a substituted or unsubstituted arylene group; A is a linear or branched C₁ to C₁₀ alkylene group; w is 0 or 1; v is 0 or 1; y is 0 or 1; X is the residue of a cyclic or acyclic sugar alcohol which is substituted with at least one —R¹; —C(O)R¹; —(CH₂CH₂O)_n(CH(CH₃)CH₂O)_mR²; —(CH₂CH₂O)_n(CH(CH₃)CH₂O)_mC(O)R¹; each n is independently 0 to 20; each m is independently 0 to 20; each R¹ is independently a linear or branched alkyl group having 9 to 29 carbons optionally comprising at least 1 unsaturated bond; and each R² is independently —H, a linear or branched alkyl group having 6 to 30 carbons optionally comprising at least 1 unsaturated bond, or mixtures thereof.

A soil repellency aqueous dispersion for treating various fibers, yarns, and textiles is disclosed. The dispersion provides superior soil resistance when compared to known fluorochemical and silicone fiber treatments. The dispersion comprises clay nanoparticle components and fluorochemicals that can be applied to the fibers, yarns, and textiles using known methods.

The invention discloses an anti-algae anti-aging fishing net prepared from the following components: polystyrene, polyethylene fibers, nylon fibers, MBS resin, an epoxy resin adhesive film, ethylene glycol dimethacrylate, a calcium carbonate powder, an attapulgite powder, dibutyl phthalate and calcium stearate. The prepared fishing net has simple processing technology; ultraviolet intermittent irradiation treatment is carried out in a process of polyethylene fiber treatment, and the prepared fishing net can be allowed to have extremely strong performance of preventing algae attachment; the nylon fibers have the defects that the nylon fibers have poor optical rotation resistance, are prone to yellowing and have the strength decreased when illuminated for a long time by the sun outdoor, so a hexamethylene diamine and maleic anhydride mixture is adopted for treating the nylon fibers, the problems are solved, and the anti-aging ability of the prepared fishing net is greatly improved; and through addition of the treated attapulgite powder, mechanical properties of the fishing net are improved, and the toughness is enhanced.

The invention discloses a fluoride-free water-repellency stain-release multifunctional finishing agent and a preparation method and application thereof. The fluoride-free water-repellency stain-release multifunctional finishing agent is a waterborne emulsion or waterborne solution of a polymer shown in a formula I. The structural formula of the polymer is shown in the formula I, and in the formulaI, R1 is a long-chain acrylate or long-chain methacrylate structure chain segment; R2 is a cage type silsesquioxane structure chain segment containing a mono-acrylate group or a mono-methacrylate group; R3 is a polyethylene glycol methanal structure chain segment containing a mono-methacrylate structure or a mono-acrylate structure; R4 is a structure chain segment of a functional monomer and is selected from an acrylate or methacrylate monomer containing at least one of hydroxyl, an epoxy group, an amide group, dimethylamino, carboxyl, an ester group, an alkoxy, a blocked isocyanate group anda halogen end group, and a, b, c and d represent the degrees of polymerization. The finishing agent is environmentally friendly, capable of removing stains easily, free of biologic toxin and not degradable; preparation is easy, and conditions are mild.

The invention discloses a multifunctional super-amphiphobic fabric and a preparation method thereof and application thereof. The preparation method of the multifunctional super-amphiphobic fabric comprises the steps of firstly, washing the fabric by using deionized water and ethanol, preparing an ethanol mixed solution of thiol siloxane and tetraethoxysilane, and putting a clean woven fabric intothe mixed solution to be soaked; and secondly, enabling the fabric to react for 5-120 min in the atmosphere containing ammonia, and putting the dried fabric into a tetrahydrofuran solution containinga photoinitiator and a fluorine-containing double-bond compound to perform click reaction. The preparation method of the multifunctional super-amphiphobic fabric, disclosed by the invention, has the advantages of short reaction time, low raw material consumption and simple operation; and the obtained fabric also has a self-cleaning function, an anti-fouling function and a function of separating oil and water of light and heavy oil.

A formulation is provided which comprises at least one phenolic compound in an amount of about 0.5 to about 1.2% of the mass of the formulation; at least one fragrance in an amount of about 0.3 to about 1.0% of the mass of the formulation; and at least one alcohol in an amount of about 90 to about 99% of the mass of the formulation. Said formulation is surfactant free and being capable of rendering anti-microbial finish to fabrics. And also, a process for preparing a fabric with anti-microbial finish is provided.

The invention provides a superhydrophobic fibrofelt and a preparation method thereof. The preparation method comprises the following steps: ultrasonically cleaning the fibrofelt in acetone, absolute ethanol and deionized water successively, and then drying the fibrofelt; adding room-temperature-cured fluorocarbon resin (FEVE) and two-component rigid polyurethane resin (SRP-FC) into an organic solvent, and carrying out uniform mixing under stirring so as to form a stable resin solution; directly adding hydrophobic fumed silica nanoparticles and fluorosilane into ethanol, and carrying out ultrasonic dispersion so as to prepare a superhydrophobic finish solution; and putting the cleaned fibrofelt in the primer resin solution, carrying out impregnation, then taking the fibrofelt out, removing excess resin and solvents through squeezing, carrying out drying, then subjecting the fibrofelt to dip-coating in the finish solution so as to form a superhydrophobic coating on the resin-treated fibrofelt, and then carrying out drying and curing so as to obtain the anti-fouling anti-moisture anti-mildew superhydrophobic fibrofelt.

The invention relates to a non-ironing three-proofing finishing process of a pure-cotton fabric. The technological process sequentially includes material preparation, liquid ammonia finishing, non-ironing three-proofing finishing, baking, baking and washing, stentering, preshrinking and acceptance check. By the adoption of the non-ironing three-proofing finishing process of the pure-cotton fabric, the technological process is shortened, the cost is reduced, pure cotton is non-ironing and three-proofing and can be produced in a batched mode, the non-ironing level is above Level 3.5, and the pure-cotton fabric is oil-proof, water-proof and anti-stain and meets the AATCC standard.

The invention discloses a multifunctional super-hydrophobic textile finishing agent, and a preparation method and applications thereof. The preparation method comprises following steps: a precursor of an oxide sol and a graphite oxide aqueous dispersion are dispersed in deionized water, an anionic surfactant is added, a catalyst is added for hydrolysis and condensation reaction after uniform dispersion so as to obtain a mixed reaction system, and the mixed reaction system is heated to 30 to 50 DEG C for 3 to 12h of reaction so as to obtain a hydrosol; a functional agent is added into the hydrosol so as to obtain the multifunctional super-hydrophobic textile finishing agent. The multifunctional super-hydrophobic textile finishing agent is safe, is friendly to the environment, is excellent in effect, is used for super hydrophobic and multifunctional finishing of textile, is capable of providing textile with six functions including super-hydrophobic property, flame resistance, antibacterial property, stain resistance, ultraviolet resistance, and skin protection performance, is capable of eliminating adverse effect of the plurality of functions, improving the synergistic effect; the preparation method is simple and convenient, is easy to control, and is suitable for large scale production.

The invention discloses a self-cleaning coating, which is formed by compounding one or various coatings in one time or multiple times. The coating at least comprises the following three substances: a)hydrophilic material, b) hydrophobic material, c) porous material, d) photocatalysis material and e) antistatic material. The self-cleaning coating is a functional material which compounds more thanthree specific physical properties, one-time or multi-time compounding is used for forming a self-cleaning surface so as to form an environment-friendly self-cleaning surface, the surface can be formed by the coating, and the surface also can be constructed by chemical vapor deposition or physical vapor deposition according to a key principle. According to the self-cleaning coating, through an innovative physical chemistry design, various physical chemistry surface characteristics are integrated. According to the construction method, advanced self-cleaning surfaces superior to common self-cleaning coatings and the like sold in the market can be produced.

Disclosed in this specification is an aqueous dispersion for treating a textile. The dispersion generally includes surface-functionalized inorganic oxides in combination with a fluorochemical. Significantly lower concentrations of fluorochemicals are present in comparison to prior art dispersions.

The invention relates to a preparation method of a super-strong washable polyester fabric moisture absorption and sweat releasing finishing agent. Dimethyl terephthalate, ethylene glycol, one part of polyethylene glycol and a composite catalyst are taken as raw materials, and are polycondensed with polypropylene glycol and the remaining polyethylene glycol to form the polyester-polyether copolymerized moisture absorption and sweat releasing finishing agent after ester-interchange reaction. The method is high in synthesis efficiency, the finished fabric is good in hydrophilicity, high in comfort, excellent in washing resistance, the antistatic property and the decontaminability are obviously improved, and the problem that a traditional moisture absorption and sweat releasing finishing agent is poor in washing resistance generally is solved.

The invention discloses a method for preparing a titanium dioxide nanorod/polypyrrole/dacron compound fabric. The method comprises the steps of cleaning and drying a dacron fabric, and then placing the dacron fabric in alkali aqueous ammonia for surface roughness treatment; then soaking the dacron fabric in an oxidization bath, and adding pyrrole monomer aqueous solution dropwise so that a polypyrrole layer can be deposited on the surface of the dacron fabric; soaking the dacron fabric with polypyrrole deposited on the surface in prepared titanium dioxide sol, conducting lifting, drying and hydrochloric acid treatment so that a titanium dioxide seed crystal layer can be deposited on the surface of the dacron fabric, and conducting hydrochloric acid treatment and sulfuric acid treatment in sequence; preparing titanium dioxide nanorod growth-promoting media, and adding an excessive amount of titanium source so that titanium dioxide nanorods can be deposited and grown on the surface of the treated dacron fabric. Combination of the one-dimensional titanium dioxide nanorods and polypyrrole on a substrate of a flexible fabric is realized, and the obtained compound fabric has self-cleaning, anti-statistic, photocatalytic degradation and pollutant filtration functions and can be used as a flexible electrode and a flexible supercapacitor.

The invention relates to the technical field of preparation of polymer materials, and in particular relates to a preparation method of an antibacterial self-cleaning fabric. A silver crystal seed solution is prepared from a silver nitrate solution, a trisodium citrate aqueous solution and a sodium borohydride solution, polyvinylpyrrolidone, L-ascorbic acid and the like are added into the silver crystal seed solution, an activated reducing solution is prepared by diluting, a pure cotton fabric is cut and treated as a base fabric to obtain a modified cotton fabric, ethyl orthosilicate and absolute ethanol are mixed, diluted hydrochloric acid is added to obtain a silica sol, absolute ethanol, 5,5-dimethylhydantoin and methacryloyl chloride are mixed and ultrasonically dispersed to obtain an antibacterial monomer suspension, the antibacterial monomer suspension is added to ethyl titanate to obtain a mixed solution, and acetic acid and the silica sol are added dropwise to the mixed solution, ichloromethane is used to dilute to obtain an antibacterial spraying agent, and the antibacterial spraying agent is sprayed by an atomizer to the surface of the modified cotton fabric to obtain theantibacterial self-cleaning fabric, and the application prospect is broad.