768results about How to "Improve washing resistance" patented technology

The invention discloses an intumescent flame retardant coating gum and the application thereof on fabric finishing. When the traditional intumescent flame retardant is applied to fabric, the fabric is not resistant to water rinse, water immersion or transfer, the flame retardant can lose or degrade under the action of luminous rays, heat, moisture and mechanical external force, and the flame retardant properties are reduced. The intumescent flame retardant coating gum comprises a flame retardant coating base gum and a carbon source, and is characterized in that the flame retardant coating base gum is prepared by mixing ammonium polyphosphate, melamine and 4A zeolite, adding organic alcohol, coating the mixture by more than two silane coupling agents for modification, drying the mixture after removing the organic alcohol to obtain a composite flame retardant, adding water, a non-ionic surface active agent, a binding agent and a cross-linking agent to the composite flame retardant, and grinding and dispersing the mixture; the carbon source is aqueous polyacrylic ester containing hydroxyl groups or aqueous polyurethane containing hydroxyl groups or a modifier of the former two. The invention obviously improves the performance of the flame retardant coating gum on flame retardant fabric for resistance to water rinse, transfer, light, heat and friction.

The invention provides a preparation method of a durable super-hydrophobic fabric. The preparation method comprises the following steps: firstly, depositing a polydopamine film on the surface of a common fabric; secondly, depositing silver oxide particles on the surface of the common fabric by using the chelating property of the common fabric to nano-particles; and finally, performing hydrophobic treatment on the fabric by using a low-surface-energy material, thereby obtaining the durable super-hydrophobic fabric. The preparation method provided by the invention has the positive progress effects that the static contact angle of water drops on the surface of the fabric prepared by the method is more than 150 degrees, and the water drops can roll easily on the surface of the fabric. After being washed or rubbed for a long time, the fabric still has excellent super-hydrophobic property; and the preparation method of the super-hydrophobic fabric does not need specific instruments and equipment, is simple to operate and is beneficial for popularization.

The invention provides a fabric post-finishing agent based on a modified silk fibroin solution and a preparation method of the fabric post-finishing agent. The preparation method comprises the following specific operational steps: (1) removing impurities from waste silk, putting the impurity-free waste silk in a sodium bicarbonate solution for boiling and degumming, taking out and wringing out the degummed waste silk, washing with clean water till the greasy feel is eliminated, putting the primarily treated waste silk in the sodium bicarbonate solution again for boiling and degumming, taking out and wringing out the degummed waste silk again, washing again with clean water till the greasy feel is eliminated, putting the secondarily treated waste silk in an oven for drying, so as to obtain degummed silk; (2) putting the degummed silk in a lithium bromide solution for standing and dissolution, taking out the treated silk, and performing cooling, dialysis and concentration to obtain a silk fibroin solution; and (3) adding glycerin and gelatin into the silk fibroin solution, uniformly stirring to form a membrane solution, adjusting the pH value of the membrane solution and then adding glutaraldehyde and chitosan, uniformly stirring, and finally mixing the treated membrane solution with a solvent containing additives, so as to obtain the fabric post-finishing agent. The fabric post-finishing agent obtained according to the preparation method covers the fabric surface in the form of a composite membrane; and the preparation method is beneficial to improvements in the membrane forming property, the ductility and the like of a silk fibroin finishing agent.

The invention relates to a reflective fabric and in particular relates to a preparation process of a reflective fabric with the heavy industry washing fastness. The reflective fabric comprises a base cloth, a complex adhesive layer, a complex adhesive protection layer, an inert substance layer, a metal coating layer, a focusing layer, a glass microballoon layer and a transparent protection layer, wherein the complex adhesive layer is arranged on the base cloth; the complex adhesive protection layer is arranged on the complex adhesive layer; the inert substance layer is arranged on the complex adhesive protection layer; the metal coating layer is arranged on the inert substance layer; the focusing layer is arranged on the metal coating layer; the glass microballoon layer is arranged on the focusing layer; the transparent protection layer is arranged on the glass microballoon layer. The reflective fabric has the firm and washable cloth base; regression reflective glass microballoons are attached onto all durable fabric lining cushions; the washing fastness is improved; the reflective intensity is high; the reflective intensity typical value reaches more than 420CPL; when the reflective fabric is sewed onto other fabrics and linings, the reflective fabric has an extremely obvious effect of improving the visibility of wearers in night or in the environment with the bad visibility.

The invention provides a durable, waterproof, oil-proof, antistatic and antibacterial functional coating adhesive and a preparation method. The coating adhesive is prepared from methyl acrylate, n-butyl acrylate, glycidyl methacrylate, allyl methacrylate, 2,2,2-trifluoroethyl methacrylate, acryloyloxyethyl trimethyl ammonium chloride, fatty alcohol polyoxyethylene ether XL90, hexadecyl trimethyl ammonium chloride, 2,2-azobis(2-methylpropionamidine)hydrochloride, deionized water and an associative polyurethane levelling and rheological agent WT-203 through the processes of emulsification, initiated polymerization and thickening.

The invention discloses a negative oxygen ion dry powder paint, belonging to the technical field of paints. The paint comprises the following components in percentage by mass: 25-35% of ash calcium powder, 6.2-8.0% of diatomite, 4.5-6.5% of negative ion additive, 1.5-5.0% of antimicrobial agent, 0.15-0.80% of talcum powder, 0.15-0.80% of kaolin, 0.15-0.50% of wollastonite, 0.05-0.15% of surfactant, 0.55-1.5% of redispersible latex powder, 1.2-1.8% of light calcium carbonate powder, 0.15-0.50% of lithopone and the balance of heavy calcium carbonate powder. The paint is capable of efficiently absorbing formaldehyde and other harmful gases and naturally and enduringly releasing negative ions, has the characteristics of high mildew resistance, high bactericidal capacity and favorable air permeability, and can adjust the humidity of indoor air. The coating has the characteristics of favorable strength, favorable toughness, favorable scrubbing resistance and the like.

The invention provides a fabric reductive cleaning agent with high soaping-resistant color fastness and high sublimation fastness, a preparation method thereof and a polyester fabric treatment method specific to the defects of poor or instable soaping-resistant color fastness and sublimation fastness of a polyester fabric caused by unclean surface flooding of the cleaned fabric and instable three-proofing functional water resistance caused by the use of a reductive cleaning agent in the prior art. An alkaline reductive cleaning agent is an aqueous solution consisting of caustic soda, thioureadioxide, a soaping agent and a dispersant. The polyester fabric treatment method comprises the following steps of: dyeing a fabric, and adding the alkaline reductive cleaning agent into the fabric inthe weight ratio of (10-15):1 on a dyeing machine; performing reductive washing at the temperature of 100+ / -5 DEG C for 30+ / 2 minutes; washing with water; and drying at the temperature of 120+ / -5 DEGC. After a polyester fiber dyeing fabric is treated with the cleaning agent, flooding and low polymers are removed completely, and high color fastness of the fabric is realized.

The invention discloses a preparation method of a washable three-proofing and easy-decontamination antibacterial fabric. The preparation method is characterized by comprising the following steps of: soaping, to be specific, after desizing, scouring, bleaching and mercerizing the fabric in advance, removing impurities on the cloth cover by a soaping process, and then drying; and performing one-bathprocess washable three-proofing and easy-decontamination antibacterial finishing, to be specific, shaping and processing the soaped and dried fabric on a shaping machine, drying, baking and finishing, thereby obtaining the washable three-proofing and easy-decontamination antibacterial fabric. A working solution which simultaneously contains a C6 durable three-proofing finishing agent, a purifiedcotton durable fluorine-free waterproof agent, a durable crosslinking agent, an antibacterial agent and a special waterproof penetrant is contained in a rolling groove of the shaping machine, and thefabric is subjected to padding, then is dried and baked to obtain the washable three-proofing and easy-decontamination antibacterial fabric. The preparation method solves the contradiction between thethree-proofing and the easy decontamination, and also solves the problems between the three-proofing and the bacteria prevention; and meanwhile the fabric is endowed with the function of washing resistance, and can meet the overall actual needs for functional fabrics in actual situations.