24results about How to "High fastness" patented technology

This invention relates to a weather-resistant polyoxymethylene (POM) automotive sun visor material and its preparation method, belonging to the field of polymer materials technology. The weather-resistant POM automotive sun visor material prepared by this invention possesses excellent mechanical properties, UV aging resistance, and color fastness. This invention synthesizes an aging-resistant additive containing phosphate ester groups, triazine rings, morpholine rings, and tert-butyl groups. This additive can simultaneously exert peroxide decomposition, UV absorption, free radical scavenging, and steric stabilization effects, achieving efficient and in-situ synergistic effects at the molecular scale, solving the problems of component separation and asynchronous action in traditional systems. Furthermore, the aging-resistant additive synthesized in this invention, due to its polarity matching, can form uniform and strong intermolecular interactions (such as hydrogen bonds) with the POM matrix, serving as a dynamically reversible physical crosslinking point. This effectively improves the material's rigidity and strength while enhancing impact toughness through an energy dissipation mechanism.

The invention discloses a synthetic method of a water-based polyurethane color fixing agent for nylon dyed by an acid dye, aiming at the property of nylon dyed by the acid dye, poly (butylene adipate-1000) and polyethylene glycol-1000 are mixed to prepare cationic water-based polyurethane, so that the dyeing percentage is increased, and the treated nylon has higher K / S value and color fastness; meanwhile, N, N-dimethyl-N, N-bis (2-ethoxyl) ammonium chloride is selected as a cationic chain extender of the waterborne polyurethane, compared with a traditional cationic chain extender, a neutralization procedure necessary for a traditional route is omitted, the risks of neutralization amount deviation, local acid excess and the like are avoided, and the production process is simplified.

The utility model discloses a two-in-one vest with cups convenient to adjust, which comprises a vest, an interlayer space is arranged at the position of the vest corresponding to the chest of a human body, a left cup mat and a right cup mat are arranged in the interlayer space, and the lower parts of the cup mats are connected with the vest; the two sides of the interlayer space are provided with an inner layer fabric and an outer layer fabric respectively, an opening is formed in the inner layer fabric, the interlayer space is communicated with the outside through the opening, and the position of the opening corresponds to the position between the two cup mats. According to the scheme, the cup mat is of a semi-fixed structure, it can be guaranteed that the cup mat is relatively stable during daily wearing and not prone to being twisted during clothes washing, fingers can stretch into the opening to unfold the cup mat or adjust the position and angle of the cup mat, the cup mat can better adapt to various breast shapes, different wearing requirements and body states, and personalized wearing experience is achieved.

The invention relates to the field of dyeing and finishing of bio-based fabrics by bio-based dyes, in particular to a method for dyeing polylactic acid / cotton blended fabrics, which comprises the following steps: mixing visible blue, sodium hydrosulfite, sodium carbonate, caustic soda and water, fully reducing and diluting to obtain visible blue dyeing liquid, adjusting the pH value to be acidic, then mixing with a dispersing agent and an accelerating agent, and uniformly stirring to obtain the polylactic acid / cotton blended fabrics. Immersing the polylactic acid / cotton blended fabric for dyeing treatment, and then performing color development treatment, soaping treatment and color fixation treatment. Aiming at the problem that the polylactic acid / cotton blended fabric is difficult to dye at present, the dyeing method for the polylactic acid / cotton blended fabric is provided, the microbial-sourced ornamental blue is selected as a dye, and the dyeing method has the advantages of being green, environmentally friendly and easy to combine with the polylactic acid / cotton blended fabric; meanwhile, according to the dyeing process, on one hand, the using amount of sodium hydrosulfite is reduced, so that pollution to the environment is reduced, and on the other hand, the dyeing temperature and time are reduced, the energy consumption is reduced, and the dyeing efficiency is improved.

The invention discloses a preparation method of an azo reactive dye, which comprises the following steps: reacting cyanuric chloride with sodium 2, 5-diaminobenzene sulfonate to obtain a first condensate, diazotizing the first condensate, performing acidic coupling on the first condensate and acetyl J acid, performing alkaline coupling on the first condensate and a diazo solution of 6-beta-ethyl sulfuryl sulfate-2-naphthylamine-1-sulfonic acid, and finally performing secondary condensation on the second condensate and nicotinic acid to obtain the azo reactive dye. Reacting to obtain azo reactive dye primary pulp, wherein the structure of the dye is shown in the specification; the prepared dye is bright in color, excellent in solubility, high in storage stability, good in lifting power and good in fixation rate and color fastness.

The application discloses antibacterial and bacteriostatic polyester non-woven fabric and a preparation method thereof, and belongs to the technical field of polyester non-woven fabric. The method comprises the following steps: taking the polyester non-woven fabric, carrying out alkali immersion, acid immersion and polydopamine coating to obtain pretreated polyester non-woven fabric; dipping the pretreated polyester non-woven fabric in an antibacterial liquid for finishing and baking to obtain the antibacterial and bacteriostatic polyester non-woven fabric; the antibacterial liquid is composed of a tannic acid solution, a hydrosulfite and antibacterial particles; the antibacterial particles are obtained by compounding and calcining graphene oxide / KH550 modified nano silicon dioxide and zinc-doped titanium dioxide sol to obtain r-GO / SiO2 / Zn-TiO2, and then in-situ reducing silver ions by using bamboo shoot extract; and the antibacterial and bacteriostatic performance of the polyester non-woven fabric is improved.

The invention discloses a medical pressure belt based on nylon spandex elastic flannelette and a preparation method of the medical pressure belt, and relates to the technical field of medical pressure belts. The preparation method comprises the following steps: pretreating brocade spandex elastic flannelette through alkali washing and acid washing, immersing the brocade spandex elastic flannelette into an epsilon-polylysine solution to form a bottom coating, dispersing composite phthalocyanine powder consisting of water-soluble phthalocyanine dye, monosubstituted beta-carboxyl zinc phthalocyanine and iron phthalocyanine derivatives, adjusting the pH value, adding an auxiliary agent to prepare slurry, dip-dyeing a base material with the bottom coating, pre-drying, and curing to obtain a finished product. The pressure belt integrates the functions of efficient antibiosis, deodorization and dyeing, the coating is high in adhesive force, washable and durable, the base material is elastically attached, the biological safety is high, and the pressure belt is suitable for the scenes of clinical infection prevention, postoperative care and the like.

The invention relates to the field of functional composite materials, and discloses a preparation process of an ecological leather fiber velvet composite material and a product. The preparation process of the ecological leather fiber velvet composite material comprises the following steps: S1, needling sea-island fibers to prepare a non-woven fabric; s2, carrying out gum dipping treatment by using a polyurethane gum dipping solution, and drying; s3, decrement splitting, water washing and drying; s4, softening treatment and sanding; s5, soaking with a pretreatment solution, dyeing with a dyeing agent, and drying; the pretreatment liquid in the step S5 contains a dyeing auxiliary agent composed of polydimethyldiallylammonium chloride, a methyl vinyl ether-maleic anhydride copolymer and bis [3-(triethoxysilyl) propyl] amine, and the dyeing agent is an acid dye containing sulfonate. According to the preparation method, through the preparation process of firstly sanding and then dyeing, and optimizing the types of the pretreatment liquid and the dyeing agent, the prepared ecological leather fiber velvet composite material has relatively good dyeing uniformity, color fastness and soft comfort, and the problem of white exposure after abrasion does not occur.

This invention relates to a high moisture-barrier and scratch-resistant protective film base for polarizers. The base film, from bottom to top, comprises a functional bonding layer: intercalated modified montmorillonite, graphene nanosheets, an antistatic agent, and optical-grade PET; an adhesive layer; and an outer wear-resistant layer: wear-resistant modified PET, functional nanofillers, UV absorbers, and optical-grade PET. The functional bonding layer of this invention contacts the pressure-sensitive adhesive of the polarizer. The unique intercalated modified montmorillonite combined with graphene nanosheets enhances the film's moisture barrier properties, providing long-term protection for the polarizer's core layer. Simultaneously, the introduction of an antistatic agent ensures no risk of electrostatic discharge damage during protective film peeling. The outer wear-resistant layer, through the synergistic effect of modified PET containing silicon and naphthalene rings and functional nanofillers, improves the film's hardness and scratch resistance. The intermediate adhesive layer effectively solves the compatibility problem between the functional bonding layer and the outer surface layer, ensuring the stability and strength of the multilayer co-extruded structure.

The invention relates to a method for detecting the fastness and surface roughness of a nickel-titanium wire for a puncture needle, and belongs to the technical field of nickel-titanium wire detection, and the method comprises the following steps: S1, feeding the nickel-titanium wire onto a workbench through a feeding mechanism on the workbench; s2, a resistance detection mechanism on the workbench electrifies the nickel-titanium wire to detect the resistance of the nickel-titanium wire, a transfer mechanism on the workbench transfers the nickel-titanium wire subjected to resistance detection to roughness detection equipment on the workbench, and the roughness detection equipment detects the surface roughness of the nickel-titanium wire; and S3, discharging the detected nickel-titanium wire from the workbench by a discharging mechanism on the workbench. The method has the effect of rapidly and nondestructively detecting the surface roughness and fastness of the nickel-titanium wire.

The invention provides a production method for one-bath one-step dyeing of a disperse / reactive dye, and belongs to the technical field of textile dyeing. According to the method, firstly, woven gray cloth is subjected to moisture regaining after doffing, pretreatment is conducted at a certain temperature and time, on the basis that a refining emulsifier and hydrogen peroxide are added, an oxygen bleaching agent is added into a pretreatment solution, oil and dirt in the spinning, weaving and other processes are directly removed, the permeability of the fabric and the adsorption capacity of the fabric to dye are improved, and the fabric has a good dyeing effect. The uniformity and color fastness of subsequent dyeing are improved, and the fabric is bright and pure in color and good in stability, has good coloring and leveling properties on the bright color, and is excellent in dyeing effect; after first acid adjustment, dyeing is carried out in a neutral dye bath by directly using dye liquor containing disperse dye and reactive dye at a certain temperature and for a certain time, the disperse dye does not need to be microencapsulated, the operation is simple and convenient, only clear water is needed for cleaning after dyeing, the dyeing time is shortened, the cleaning process is simplified, the water saving rate is high, and the purposes of saving energy and reducing consumption are achieved.

The utility model discloses a yarn dyeing device that sprays evenly belongs to yarn dyeing device technical field, and the dyeing device body includes base, and the surface fixed mounting of base has the pre -treatment box and the dye box, and the yarn import is opened to one side of pre -treatment box, and the fixed intercommunication of yarn import has the treatment room one end, and the inside of treatment room is provided with ultrasonic generator and dip cation modified solution, and the top of treatment room buckles and has first box lid, this yarn dyeing device that sprays evenly, through the ultrasonic generator of pre -treatment box setting, can make cation modifier molecule more easily dyeing to yarn and diffusing to the subsurface of yarn, can greatly improve the good dark depth, uniformity and colour fastness of subsequent coating dyeing time to obtain, and the pre -treatment box and the dyeing box of setting are combined through the mode of stacking, make the dyeing device have the function of pre -treatment, and the floor space is small, and the process is reduced.

The present invention relates to a method for preparing a crimped composite fiber and a crimped composite fiber obtained thereby, the method comprising the steps of: a) providing a composite fiber comprising a first component and a second component crimped side by side; b) subjecting the composite fiber in step a) to supercritical fluid infiltration; c) foaming and crimping the composite fiber subjected to supercritical fluid infiltration in step b); d) setting the composite fiber foamed and crimped in step c). The crimped composite fiber has improved fiber crimp shrinkage and warmth retention properties.

The application relates to a kind of active cyclic phosphate flame retardant, its structural formula is as follows: the application further relates to a kind of persistent flame-retardant wool-polyester blended color fabric and a preparation method thereof.The application has the advantages of simultaneously having flame-retardant function and helping to improve the performance of wool-polyester blended fabric dispersed dye one-bath dyeing.

The application discloses a soaping agent and a preparation method thereof, and particularly relates to the technical field of textile printing and dyeing auxiliaries. The soaping agent contains 10-20 parts of anti-staining copolymer, 10-15 parts of fatty alcohol polyoxyethylene ether O-20, 5-10 parts of coconut oil fatty acid diethanol amide and the rest water, with the total mass of the soaping agent being 100 parts. The anti-staining copolymer is prepared by copolymerization of maleic anhydride, acrylic acid and undecyl hydroxyethyl imidazoline quaternary ammonium salt under the action of ammonium persulfate. The soaping agent provided by the application has excellent anti-staining ability and cleaning ability, and the fabric after soaping by the soaping agent has good color fastness and dry and wet rubbing fastness.

The application discloses a commuter functional trousers, which comprises a trousers body and a waistband, the trousers body adopts a composite knitted fabric and is sewn with elastic threads, the fabric has a tight fiber structure, a hydrophobic surface layer and a skin-friendly soft bottom layer; the waistband adopts an elastic and tight waist structure, the back piece of the trousers body is provided with a back wave structure and a hip shaping structure; the side waist of the trousers body is provided with a reinforcing structure, the back waist of the trousers body is provided with a waistband reinforcing structure, the waist head of the trousers body is provided with a hanging structure, and an inner adhesive bag is arranged in the front bag of the trousers body and is used for being attached to a human body. The application can improve the overall wearing effect and the functional commuter functional trousers.

The invention discloses an anti-phenolic yellowing polypropylene staple fiber and a preparation method thereof, and belongs to the technical field of high-performance polypropylene, the preparation method comprises the following steps: reacting 2, 3-naphthalic anhydride with 1-methyl-1-phenylhydrazine to generate a ring-opening intermediate containing a naphthalene ring and hydrazide structure, and esterifying the ring-opening intermediate with compound fatty alcohol of hexadecanol and 2-octyldodecanol to obtain an anti-phenolic yellowing agent; the phenolic yellowing resistant agent is compounded with low-viscosity mineral white oil, caprylic capric triglyceride, polyethylene glycol fatty acid ester, polyisobutylene succinimide and lauryl phosphate monoester potassium salt to form an oil-based phenolic yellowing resistant functional agent, and the oil-based phenolic yellowing resistant functional agent is coated on the surface of a polypropylene fiber through a bundling oiling process. Compared with the prior art, the method has the advantages that double synergy of compact barrier and uniform covering is achieved, the anchoring capacity of the functional film is enhanced, the yellowing grade of the obtained polypropylene staple fiber phenol reaches 4.5 grade, the polypropylene staple fiber phenol is free of attenuation after being soaked in water, the breaking strength is larger than or equal to 4.5 cN / dtex, and the elongation at break is larger than or equal to 40%.

The invention discloses a sun-resistant warm-keeping fabric for an outdoor tent, which comprises a base cloth and a protective material, the protective material is coated on two sides of the base cloth, the base cloth is a polyester base cloth, the protective material comprises polyurethane resin, modified silicon dioxide and paraffin, the modified silicon dioxide is added to form a gap between the polyurethane coating and the base cloth, and the modified silicon dioxide is added to form a gap between the polyurethane coating and the base cloth. Therefore, by matching with paraffin, the product has good heat preservation and heat insulation performance, and the polyurethane resin coating is prevented from wrinkling.

The invention relates to a composite cotton yarn dyeing method and device based on array spinning. The method comprises the following steps: (1) preparing cationic nanospheres from an emulsion polymerization monomer and a cationic monomer through an emulsion polymerization method; then, dyeing the cationic nanospheres by using a three-primary-color anionic dye to obtain three-primary-color cationic nanospheres; (2) mixing a soluble high polymer with deionized water to obtain a soluble high polymer solution, then adding the three-primary-color cationic nanospheres into the soluble high polymer solution, and stirring at room temperature to prepare a three-primary-color array ionization solution; (3) preparing mixed-color composite fiber strips; and (4) feeding the color-mixed composite fiber strip into a subsequent spinning process for spinning, and finally carrying out cold pad-batch color fixation to obtain the dyed composite cotton yarn. The problem of decoloration of colored nano array ionization substances is solved, color matching is performed by using an array ionization solution online mixing method, any color can be obtained according to the liquid supply proportion, and energy consumption and water consumption in the textile printing and dyeing industry are reduced.

The invention provides a water-based blocked polyisocyanate curing agent and a preparation method thereof, and belongs to the technical field of high polymer materials. The water-based blocked polyisocyanate curing agent disclosed by the invention is prepared from the following raw materials in parts by mass: 15 to 30 parts of isocyanate polymer, 0.5 to 2.5 parts of alpha-amino acid, 0.5 to 2.5 parts of neutralizer, 8 to 15 parts of sealing agent and 55 to 70 parts of water. The water-based polyisocyanate curing agent is prepared by taking alpha-amino acid as a hydrophilic group, and the water-based polyisocyanate curing agent has excellent storage stability and water-based resin compatibility.

The application discloses a kind of bio-based antibacterial fireproof polyurethane synthetic leather and its preparation method and application, the polyurethane synthetic leather, from top to bottom, includes bio-based polyurethane surface layer, bio-based polyurethane bonding layer and substrate layer, wherein: polyurethane surface layer includes tea extract, lignocellulose and other components, polyurethane bonding layer includes phytic acid modified isocyanate prepolymer, lignocellulose and other components.The application uses tea polyphenols in tea extract as antibacterial components and antioxidant components, and forms crosslinking structure with curing agent in surface layer resin at the same time, improves the combination of polyurethane coating, and further improves the color fastness and durability of product;Lignocellulose and other components act as carbon structure and phytic acid modified polyurethane bonding layer to improve the flame retardant performance of product.The application uses bio-based materials reasonably, and obtains bio-based antibacterial fireproof polyurethane synthetic leather with good durability.

The invention belongs to the technical field of polyurethane, and discloses a washable weather-resistant flame-retardant waterborne polyurethane finishing agent as well as a preparation method and application thereof. The preparation method comprises the following steps: adding functional additives (modified silicon carbide, a flame retardant, a free radical scavenger, epoxy resin and a chain extender) into a polyurethane prepolymer for reaction; then adding aliphatic diamine to carry out an end capping reaction, adding water to carry out phase inversion, and then adding a polyacrylate emulsion and a plasticizer to carry out emulsification. Through the synergistic interaction of the epoxy resin, the silane coupling agent modified silicon carbide and the polyacrylate, the flame-retardant waterborne polyurethane is endowed with excellent washing resistance.

The invention discloses a dyeing method for improving color fastness of spandex based on disperse blue dye, and belongs to the technical field of dye manufacturing and application. The invention provides a dyeing method for improving the color fastness of spandex based on a specific disperse blue dye, and the disperse blue dye has the advantages of high dye-uptake, good washing fastness, high redyeing property, wide pH application range and conformity to environment-friendly printing and dyeing.

The application provides a dust removal and CO removal functional filter material, which comprises pure felt filter material and a CO removal catalyst; the CO removal catalyst is mainly Co3O4 and is assisted by CeO2, and the two jointly act. The fiber surface of the dust removal and CO removal functional filter material of the application is loaded with the CO removal catalyst, the effective components of which are Co3O4 and CeO2, and the CeO2 auxiliary catalyst can improve the low-temperature catalytic activity of the main catalyst Co3O4, and the CO removal efficiency can reach more than 90% at 180-220 DEG C.