63results about How to "Improve washability" patented technology

The invention belongs to the technical field of composite fiber materials, and relates to a functional thermal management fabric, in particular to a phase change microcapsule doped flexible cooling fiber fabric and a preparation method thereof. The fabric has a controllable double-layer structure and is formed by assembling nanofibers and micro-nanofibers doped with a large number of phase change microcapsules. Wherein the micro-nano fiber layer has relatively high sunlight reflectivity and atmospheric window wave band emissivity, and shows an excellent radiation cooling effect; the microcapsule content of the nanofiber layer doped with a large amount of phase change microcapsules is not less than 10 wt%, and the nanofiber layer has no rupture phenomenon, has high heat storage capacity, not only makes up for the deficiency of radiation cooling capacity, but also effectively slows down temperature fluctuation. The radiation cooling technology and the phase change latent heat technology are combined, so that the long-time temperature control performance of the fabric is realized, and the thermal shock resistance is enhanced. In addition, the fabric also has excellent mechanical property, flexibility, washability, air permeability, moisture penetrability and sunscreen property.

The invention relates to a preparation method of a universal super-hydrophobic fluoride-free waterproof agent with strong washability. According to the method, a polymeric monomer and a polymerizable silane coupling agent are subjected to free radical copolymerization or polycondensation to obtain an emulsion A, and a silanol-based compound formed by hydrolysis of the silane coupling agent interacts with the surface of a fiber base material to enhance the adhesive force of microspheres on the fiber surface; meanwhile, organic silicon in the emulsion B is cured on the surfaces of the polymer microspheres and the fibers to form a film, so that the firmness of the fabric is further enhanced, and the washability of the fabric is remarkably improved while an excellent hydrophobic effect is ensured. According to the invention, simplification and batch production of the production process are effectively realized, and meanwhile, the requirements of modern industry on economic and green production are met.

The invention discloses an antibacterial moisture-absorption softening agent and a preparation method thereof. The preparation method comprises the following preparation steps: 1, preparing a softener; the preparation method comprises the following steps: S1, reacting toluene diisocynate with polyethylene glycol in a solvent to generate an intermediate I; s2, reacting the intermediate I with tetramethyldipropylenetriamine in an inert gas atmosphere to generate an intermediate II; s3, carrying out reaction on the hydrogen-containing silicone oil, allyl polyoxyethylene ether and allyl epoxy terminated polyoxyethylene ether in a solvent and a catalyst to generate modified silicone oil; and S4, carrying out a reaction on the modified silicone oil and a norfloxacin aqueous solution in a solvent, then adding the intermediate II into a reactant, carrying out a reaction for a period of time, and removing impurities to obtain the antibacterial moisture-absorption softening agent.

The invention relates to a preparation method of a thermosensitive decoloration temperature-adjustable super-hydrophobic textile. According to the method, a microcapsule emulsion A with a thermosensitive decoloration and phase-change material as a core material and a polymer as a shell layer and a waterproof agent emulsion B are obtained through free radical copolymerization or polycondensation, the thermosensitive decoloration and phase-change microcapsule emulsion and the waterproof agent emulsion are applied to after-finishing of textiles, a simple padding process is adopted, and the temperature-sensitive decoloration and phase-change microcapsule emulsion and the waterproof agent emulsion are obtained. And meanwhile, a layer of polymer film is formed on the surface of the fiber by utilizing the waterproof agent in the emulsion B, so that the fabric is endowed with multiple functions of thermosensitive decoloration, temperature adjustment, super-hydrophobicity and the like. According to the invention, the polymerization process is simplified, and the chromatic aberration problem caused by polydopamine is eliminated; by adding the recessive dye and the color developing agent, the thermosensitive decoloration function is increased, the color of the fabric becomes light along with temperature rise, light reflection is increased, and the temperature adjustable performance is further enhanced by adding the phase change material.

The invention discloses a radiation cooling fabric with a long-time phase change heat storage function. The radiation cooling fabric comprises a porous flexible phase change film on the inner layer and a nanofiber film on the outer layer. The porous flexible phase change film comprises a phase change microcapsule, the thickness of the porous flexible phase change film is 1000-1500 [mu] m, and the particle size of the phase change microcapsule is 1-10 [mu] m; the nanofiber membrane comprises nanofibers, the length of the nanofibers is larger than 1000 microns, and the diameter of the nanofibers is 10-1000 nm. And the thickness of the nanofiber membrane is 150 to 500 [mu] m. The prepared flexible film fabric has excellent air permeability, moisture penetrability, cycling stability, thermal stability and washability, and the thermal comfort of a human body in a high-temperature environment is enhanced through the combination of radiation cooling and latent heat storage technologies.

The invention relates to the technical field of textile fabrics, in particular to a dyeing and finishing process for improving hand grasp whitening of a fluoride-free waterproof fabric. The dyeing and finishing process comprises the following steps that an open-width washing procedure and a setting procedure are sequentially carried out, and a waterproof auxiliary is added in the open-width washing procedure. The waterproof processing is carried out in an open-width washing machine, so that the phenomenon of white grasping caused by non-uniform water permeation can be effectively eliminated, and meanwhile, the waterproof washable performance can be improved.

The invention discloses a cross-linking agent capable of reducing the fibrillation tendency of lyocell fibers and a preparation method and application of the cross-linking agent, the cross-linking agent organically combines structural components with multiple functions together through a benzene ring, and the molecular structure not only contains sulfonic acid groups, but also contains two epoxy groups and a long alkyl chain. The preparation method of the cross-linking agent comprises the following steps: (1) sulfonation process: sulfonating cardiac phenol by using concentrated sulfuric acid at 5-10 DEG C to obtain an intermediate; (2) condensation modification process: adding the intermediate obtained in the step (1) into epoxy chloropropane, uniformly mixing to obtain suspension dispersion liquid, heating to 55-65 DEG C under the protection of inert atmosphere, dropwise adding strong alkali alcohol liquid, continuously reacting for at least 1-2 hours at the temperature after dropwise adding is finished, and cooling to room temperature to obtain modified epoxy chloropropane; the obtained product is the cross-linking agent capable of reducing the fibrillation tendency of the lyocell fibers. The application method of the cross-linking agent adopts an independent finishing method or adopts a dyeing and finishing one-bath method to finish lyocell fibers.

The utility model discloses a washable and rainproof breathable reflective fabric which comprises a reflective layer and a cloth base layer, the reflective layer is connected with the cloth base layer, an upper washable breathable waterproof layer is arranged on the upper side of the reflective layer, and a lower washable breathable waterproof layer is arranged on the lower side of the cloth base layer. According to the utility model, the upper washable breathable waterproof layer and the lower washable breathable waterproof layer are arranged, and the reflective layer and the cloth base layer are directly connected, so that the washable and rainproof breathable reflective fabric is realized, the breathable, washable, rainproof and reflective functions are realized at the same time, and the use experience is greatly improved.

The invention discloses an environment-friendly polyester modified waterproof agent as well as a preparation method and application thereof. Comprising the following raw materials: 2-20% of double-end hydroxyalkyl silicone oil with the molecular weight of 1000-5000, 5-20% of epsilon-caprolactone, 0.001-1% of an organic bismuth catalyst, 5-70% of an organic solvent, 1-20% of isocyanate, 0.01-2% of an environment-friendly catalyst, 0.05-1% of organic amine, 0.5-3% of an environment-friendly end-capping reagent, 1-50% of an emulsifier and 0.1-2% of acid. According to the waterproof agent, polyester modified hydroxyalkyl silicone oil with an ultra-long molecular chain is introduced, the prepared waterproof agent contains a silicone oil component, a fabric can be endowed with soft hand feeling and does not become hard, white marks caused by hand grasping are greatly reduced, meanwhile, an environment-friendly end-capping reagent is introduced, the end-capping reagent is unblocked during high-temperature setting, unblocked isocyanate can generate a cross-linking effect with fiber molecules, and the waterproof effect is good. Therefore, the waterproof effect and the washability of the fiber are improved.

The invention discloses a durable conductive silk fabric preparation method, which comprises: pretreating a silk fabric by using a formic acid aqueous solution to obtain a pretreated silk fabric; preparing a polyphenol substance solution, and soaking the pretreated silk in the polyphenol substance solution for treatment to obtain a polyphenol modified silk fabric; the preparation method comprises the following steps: respectively preparing a silver nitrate aqueous solution, a caffeic acid aqueous solution and a polyvinylpyrrolidone aqueous solution, uniformly mixing the three solutions, stirring and reacting at room temperature for 5-10 minutes, heating to 28-30 DEG C, standing and reacting for 3-5 hours, and filtering to obtain a silver nanowire; preparing a polyethyleneimine aqueous solution, and dispersing the silver nanowires in the polyethyleneimine aqueous solution to obtain a silver nanowire / polyethyleneimine dispersion liquid; dipping the polyphenol modified silk fabric in the silver nanowire / polyethyleneimine dispersion liquid for treatment, and repeating dipping and curing to obtain the silver nanowire / polyphenol / polyethyleneimine durable conductive silk fabric.

The invention discloses a washable auxiliary polymer for mark pen ink, and a preparation method and application of the washable auxiliary polymer. Wherein the polymer of the washable auxiliary agent for the mark pen ink comprises sulfonated polyvinylpyrrolidone with a structure as shown in a formula I, # imgabs0 #, and n is equal to 2-4. According to the mark pen ink, sulfonated polyvinylpyrrolidone of a specific structure is adopted, the water solubility of sulfonated polyvinylpyrrolidone is improved, meanwhile, the adhesive force of sulfonated polyvinylpyrrolidone to base materials such as skin and cloth is reduced, and therefore the washability of the ink is improved. Moreover, 75% medical alcohol is selected as the ink for the mark pen, and the main component of the ink is ethanol, so that the ink has no pungent smell.

The invention provides a method and a system for continuously extracting and washing a crude benzomelamine product. The method comprises the following steps: mixing a crude product solid of benzotripolycyanamide with water to prepare slurry capable of continuously flowing, and continuously feeding in a fluid form; enabling the slurry to be in countercurrent contact with washing water in the turntable extraction tower so as to realize continuous extraction and washing of the crude product of the benzotripolycyanamide; meanwhile, the spiral conveyor is additionally arranged at the bottom of the turntable extraction tower, so that washed benzotripolycyanamide solids can be conveniently settled to the lower part of the turntable extraction tower so as to realize continuous discharging and further to be dried. Compared with traditional intermittent cross-flow washing, the method has the advantages that continuous extraction and washing of crude benzomelamine product solids can be achieved, washing efficiency is improved, washing water is saved, impurities such as benzamide and potassium hydroxide remaining in benzomelamine can be efficiently removed, the ash content and the free alkali content of the product are reduced, and the method is suitable for industrial production. And the purity of the benzotripolycyanamide product is improved.

The invention provides a preparation method of fibers with efficient photo-thermal heating and heat preservation functions, which comprises the following steps of: preparing Cu2S micro-nano hybrid particles with ultra-small particle size by a template load growth method, and preparing ethylene glycol slurry of the Cu2S micro-nano hybrid particles with small particle size and high dispersion by a wet grinding synchronous modification technology; the preparation method comprises the following steps: proportionally adding ethylene glycol slurry into a polyester polymerization reaction kettle, carrying out in-situ polymerization to prepare a PET / Cu2-xS nano composite material with efficient photo-thermal heating, and preparing hollow fibers with high hollowness by adopting a melt spinning method. The functional fiber prepared by the invention has heating and thermal insulation properties, and can realize 10-20 DEG C of light absorption heating, 0.9-0.98 of far infrared emissivity and 2.0-3.0 DEG C of far infrared radiation temperature rise, and the prepared fabric still has good breaking strength, weaving characteristic and excellent washability.

The invention relates to the technical field of fabric setting, in particular to a fabric shrinkage rate rapid setting method, and aims to solve the problems that the production cycle is prolonged, the production efficiency is greatly reduced, the fabric setting effect is poor, the energy and raw material consumption is large and the like due to long setting time in the prior art. According to the original area of the fabric, taking a corresponding area for analysis; compared with a traditional shaping method, the rapid shaping method adopting the shrinkage rate has the advantages that the shaping time can be remarkably shortened, the production efficiency can be improved, the production cycle can be shortened, the consumption of energy and raw materials can be reduced, and the production cost can be greatly reduced; by optimizing the formula, equipment and process parameters, researching the physicochemical properties of the fabric and selecting the optimal temperature for fabric setting, the stable and consistent fabric setting effect is realized, and the quality stability of the product is improved.

The utility model relates to a cleaning block with a good cleaning effect, the cleaning block comprises a cotton cleaning layer, a loofah sponge imitating filter cotton layer and a connecting assembly, the loofah sponge imitating filter cotton layer is detachably arranged on one side of the cotton cleaning layer through the connecting assembly, and the connecting assembly comprises a round hair bonding layer and a hook hair bonding layer; the loop hair bonding layer is arranged on one side of the cotton cleaning layer, the hook hair bonding layer is arranged on one side of the loofah sponge imitating filter cotton layer, the loop hair bonding layer and the hook hair bonding layer are detachably bonded, and an anti-tearing layer is arranged between the loop hair bonding layer and the cotton cleaning layer. And a convenient-to-tear layer is arranged between the bristle bonding layer and the loofah sponge-like filter cotton layer. The cleaning block has the effects of prolonging the service life of the cleaning block and improving the cleaning performance and the drying performance.

The present invention provides an aminohydantoin Schiff base 4-pyridine quaternary ammonium salt precursor compound and its preparation method and application, which belongs to the synthesis and application technical field of quaternary ammonium salt Schiff base halamine high-efficiency composite antibacterial agent. Aminohydantoin hydrochloride, 4-pyridine formaldehyde and propylene bromide are used as raw materials to prepare an aminohydantoin Schiff base 4-pyridine quaternary ammonium salt precursor compound. And, the application process of the precursor compound is to pretreat the fiber or fabric with 3-mercaptopropyltriethoxysilane, then arrange it with the precursor compound, and finally halogenate it to obtain an antibacterial material. The method of the present invention has mild reaction conditions, simple process and good antibacterial effect. The 1-ADPAH-R antibacterial agent synthesized by the method and its halamine precursor combine the advantages of multiple antibacterial structures, so that the antibacterial agent has water solubility, is easy to operate when preparing the antibacterial material, and can prepare an antibacterial material with excellent antibacterial properties.

The invention provides a preparation method of multifunctional temperature-regulating fibers. The preparation method comprises the following steps: dispersing silicon dioxide coated polyethylene glycol phase-change microcapsules into a polyethylene matrix; the preparation method comprises the following steps: dispersing nano powder capable of absorbing light and generating heat into polyester and polyamide matrixes; the multifunctional composite fiber with light absorption, heating, cool feeling and antibacterial functions is prepared through a skin-core composite spinning method. The functional fiber prepared by the invention has both heating and cooling properties and has excellent contact antibacterial and photo-thermal rapid sterilization capabilities, and the prepared fabric has good breaking strength, weaving characteristic and excellent washability.

This invention relates to the field of fabric technology, specifically to a preparation process and product of a fabric that promotes blood circulation. The preparation process includes: (1) preparing a functional masterbatch by combining a composite inorganic functional powder with a first polymer resin, and then melt-spinning it with a second polymer resin to obtain functional fibers; (2) blending the functional fibers with cellulose fibers to obtain blended yarn; (3) weaving it into a greige fabric and pre-treating it; (4) padding it with a finishing solution containing traditional Chinese medicine microcapsules and an adhesive; and (5) drying and setting it. This invention, through the synergistic effect of functional fibers and traditional Chinese medicine microcapsules, endows the fabric with excellent blood circulation-promoting function, and the traditional Chinese medicine microcapsules have good adhesion and washability, making the fabric function durable and stable.

The invention provides power generation cloth based on friction power generation and a preparation method thereof.The power generation cloth comprises a first friction assembly and a second friction assembly, and friction-based power generation is achieved through friction between the first friction assembly and the second friction assembly, the first friction assembly comprises a strip-shaped fabric composite layer, a conductive fabric layer and a ring-shaped fabric composite layer, the strip-shaped fabric composite layer and the conductive fabric layer are stacked in parallel, and the ring-shaped fabric composite layer surrounds the strip-shaped fabric composite layer and the conductive fabric layer which are stacked in parallel. The invention belongs to a green, clean and renewable energy source conversion technology. The power generation cloth disclosed by the invention has high elasticity, high flexibility, high flame retardance and washability. According to the power generation cloth, various mechanical energy can be converted into electric energy, the conversion efficiency is improved, and resource waste is reduced to a certain extent.

The invention relates to the technical field of fabric functional finishing agents, and discloses a finishing agent capable of absorbing moisture, heating and eliminating peculiar smell as well as a preparation method and application of the finishing agent, and the finishing agent comprises the following components in parts by mass: 10-15 parts of an adsorbent, 15-20 parts of a polyurethane adhesive, 20-30 parts of a resin softening agent and the balance of water; the adsorbent is an iron-based MOF material with hydrophilicity, and MOF is a porous adsorption material with a three-dimensional network structure, wherein the porous adsorption material is obtained by assembling central Fe < 3 + > ions and organic ligands; a central Fe < 3 + > ion structure exists in the form of [Fe (OH) (COO) 2] n and [Fe3 (mu3-O) (COO) 6] clusters; the organic ligand is formed by compounding a main ligand and an auxiliary ligand, the main ligand is aromatic organic acid with a triangular plane structure, and the auxiliary ligand is at least one of bipyridine, diimidazole benzene and biphenyl with a linear structure. The finishing agent is a porous adsorption material based on the MOFs structure, has the composite functions of moisture absorption, heating and peculiar smell elimination, is fast in moisture absorption, large in moisture absorption capacity and reversible in moisture absorption process, and can be applied to functional after-finishing of textiles.

The invention discloses an antibacterial air filtering material as well as a preparation method and application thereof. The preparation method comprises the following steps: opening and carding low-melting-point fibers and 2D fibers, and then conveying the fibers and the 2D fibers into a lapping machine to lay a fiber net; conveying the fiber net to a hot pressing roller for heating, pressing and shaping to obtain filter base cloth; the filtering base cloth is introduced into a melt-blown line spraying shaft; polypropylene particles and a silver ion antibacterial agent are mixed and then put into a heating bin for melt-blowing, melt-blown polypropylene fibers adhere to the outer surface of the filter base cloth, and a PP melt-blown layer is formed; the air filter cloth is obtained; spraying an antibacterial viscose solution on the PP melt-blown layer of the air filter cloth at high pressure; the air filter cloth is conveyed to drying equipment to be dried and shaped, and edge cutting and rolling are conducted. The air filtering material has a double-layer structure with a fluffy upper layer and a dense lower layer, and has antibacterial and antiviral functions, and the filter cloth can still keep high-efficiency filtering and antibacterial effects after being washed repeatedly.

The invention discloses a spinning method for improving washability of a fabric and a preparation method of the fabric, and relates to the technical field of preparation of the fabric, and the spinning method comprises the following steps: pretreating a spinning fiber raw material to remove impurities in the raw material; the pretreated spinning fibers are synthesized into fiber bundles, and the fiber bundles are stretched, so that the fiber bundles are refined and reach the required linear density; in the spinning nozzle, air is utilized to enable the fiber bundles to move along the spiral channel, and the fiber bundles are twisted under the action of centrifugal force; and the fiber bundles are gradually condensed and twisted into newly formed yarns under the action of specific airflow to form yarn cores. According to the spinning method, the fibers form a multi-point crossed entangled structure in the yarns under the action of airflow, so that the friction force among the fibers is enhanced, and the strength and the elasticity of the yarns are improved; the formed yarn has an open structure and has more gaps and channels, so that a path for dye to enter the interior of the fiber is provided, and the dyeing effect of the fabric is better.

The application belongs to the technical field of textile fabric functional finishing, and particularly relates to a preparation method of super-hydrophobic fabric. The preparation method of the super-hydrophobic fabric comprises the following steps: pretreating cotton fabric by using a zinc ion mixed solution of sodium hydroxide to obtain cotton fabric containing a zinc oxide seed layer; then immersing the cotton fabric containing the zinc oxide seed layer in a mixed solution of a zinc nitrate aqueous solution and a hexamethylenetetramine aqueous solution to obtain a ZnO composite fabric; and finally using the bridging effect of a mercapto silane coupling agent to bond low-surface-energy polydimethylsiloxane and octavinyl octasilsesquioxane to the cotton fabric to obtain the super-hydrophobic fabric. The above method can endow the fabric with excellent hydrophobicity and improve the washing resistance of the hydrophobic effect.

The present invention provides a mixture of perfluorononenyl 2,2,3,3-tetrafluoropropyl ether and its preparation method and application, belonging to the field of fluorine chemical technology. The mixture includes perfluorononenyl 2,2,3,3-tetrafluoropropyl ether shown in formula (I), formula (II), formula (III) and formula (IV), wherein A represents 2,2,3,3-tetrafluoro n-propyloxy. The present invention also provides a preparation method of the mixture. The mixture can be used as a fluorinated liquid with good cleaning performance, and can achieve a better cleaning effect on stains on the surface of scintillation crystals.

The invention belongs to the technical field of high polymer materials and textile clothing, and particularly relates to an anti-sublimation hot melt film as well as a preparation method and application thereof. The preparation method of the anti-sublimation hot melt film comprises the following steps: adding polyol, polyisocyanate, a micromolecular chain extender, an auxiliary agent and a catalyst into a twin-screw extruder according to a weight ratio, carrying out a polymerization reaction, and then carrying out underwater pelletizing and curing to obtain polyurethane plastic particles for an anti-sublimation layer material; and carrying out curtain coating to prepare a single-layer film or a multi-layer structure composite film used as a middle layer, so as to obtain the anti-sublimation hot melt film. The prepared anti-sublimation hot melt film has high-grade anti-sublimation performance, migration and sublimation of pigment molecules can be effectively blocked, the film is soft in hand feeling, and good washing and dry cleaning resistance is achieved. The anti-sublimation hot-melt film prepared by the invention can be used as a decorative film, a transfer film and a hot-melt adhesive film, and is applied to the textile fields of trademarks, fabrics, clothes and the like.

The invention relates to the technical field of knitted fabrics, and discloses a chinlon-spandex fabric with cool touch sense and a preparation process thereof.The preparation process of the chinlon-spandex fabric with the cool touch sense comprises the following steps that a modified biguanidyl compound reacts with a boron-containing compound, and a multifunctional modifier is obtained; the preparation method comprises the following steps: reacting an amino functionalized caprolactam monomer with 2-butyl-5-chloro-1H-imidazole-4-formaldehyde to obtain a modified caprolactam monomer; the modified caprolactam monomer is subjected to modification treatment by a multifunctional modifier and then is copolymerized with epsilon-caprolactam to obtain the high-performance PA6. Mixing the high-performance PA6 with the multifunctional cool-feeling filler to prepare cool-feeling polyamide fiber; the chinlon-spandex fabric with cool touch feeling is prepared by blending the cool chinlon fibers and the spandex fibers; the cool polyamide fiber contains the multifunctional cool filler and the high-performance PA6, so that the nylon / spandex fabric is endowed with cool touch feeling, the flame retardance, antibacterial property, sunscreen property and the like of the fabric are improved, and the wearing requirements of various occasions are met.

The invention relates to the technical field of functional fabrics, in particular to a high-needle and high-density functional knitted flat fabric, which is prepared by the following steps: putting polyester flat fabric into alkali liquor, carrying out alkali decrement, washing with water, dyeing, finishing with a specially-made moisture-absorbing and sweat-releasing finishing agent and a specially-made bromhidrosis-eliminating finishing agent, washing with water, and drying to obtain the finished fabric. Compared with the traditional polyester-viscose fabric, the polyester-viscose fabric is more suitable for the development of high-grade textiles, has higher added value, can better meet the beautiful requirements of consumers, and has a wider market prospect.

The invention relates to a durable antistatic finishing agent copolymer for polyester fabrics and a preparation method of the durable antistatic finishing agent copolymer. The finishing agent copolymer comprises the following copolymerization units: 1) 20-40 wt% of a terephthalic acid unsaturated ester copolymerization unit containing two double bonds; 2) 40-65 wt% of a polyethylene glycol methyl ether methacrylate copolymerization unit; and 3) 5-25 wt% of an unsaturated phosphate copolymerization unit. The durable antistatic finishing agent disclosed by the invention is good in stability, and the polyester fabric treated by the finishing agent is excellent in antistatic performance and good in washability.

The utility model relates to dish washer technical field discloses dish washer, including washing system and heat exchange system, washing system includes water tank and washing pump, and water tank and washing pump intercommunication, heat exchange system includes working medium compression unit and refrigerant circulation pipeline, working medium compression unit includes air inlet and exhaust port, refrigerant circulation pipeline includes heating pipe and cooling pipe, heating pipe is located in water tank, and one end communicates with the exhaust port of working medium compression unit, and the other end communicates with cooling pipe, cooling pipe surrounds and sets up in the outer periphery of washing pump, and communicates with the air inlet of working medium compression unit, the utility model utilizes the refrigerant of higher temperature to heat the washing water in water tank, and the pump body is cooled with the help of the refrigerant of temperature reduction, reaches the high -efficient heat dissipation of pump body, and the both are synchronous, not only satisfy the requirement to water temperature in the washing process, guarantee the normal stable operation of washing pump, but also improved the comprehensive utilization of energy, reduced overall energy consumption, realized the dual goal of energy -conserving and high -efficient operation.

The invention discloses a breathable waterproof medical fabric and a preparation method thereof, and relates to the technical field of textiles. The breathable waterproof medical fabric prepared by the invention comprises an inner layer, a middle layer and an outer layer from inside to outside, the outer layer is a coumarin derivative film, the middle layer is a polytetrafluoroethylene breathable film, and the inner layer is a modified cotton fabric; the coumarin derivative film has relatively high waterproofness and oxidation resistance, so that the breathable and waterproof medical fabric is prevented from being oxidized and yellowing; the surface of the modified cotton fabric has a micro-nano coarse structure, and then hydrophobic treatment is performed, so that the modified cotton fabric has excellent hydrophobicity; the modified cotton fabric is completely coated by the polytetrafluoroethylene in the middle layer, so that the hydrophobicity is improved, and the breaking strength is further enhanced; a coumarin derivative is cross-linked, so that the washability of the breathable waterproof medical fabric is enhanced.