36 results about "Ethyl salicylate" patented technology

A flavour composition comprises at least 0.5% by weight of one or more of the following group A materials: cinnamic aldehyde, basil oil, tarragon, cis-3-hexenyl acetate, cis-3hexenol, orange oil, lime, citral, and damascone; and at least 3% by weight of one or more of the following group B materials: anethole synthetic, alcohol C10, eucalyptol, methyl salicylate, clove bud oil, carvone laevo, benzyl benzoate, thymol, benzaldehyde, benzyl formate, ethyl salicylate, eucalyptus oil, ionone alpha, iso amyl acetate, rosemary oil, cardamom oil, ginger, eugenol, camomile oil, spearmint, and peppermint. These materials have been identified as being capable of inhibiting the growth of Porphyromonas gingivalis or the protease (arg-gingipain) activity of Porphyromonas gingivalis, and so to possess hitherto unappreciated antimicrobial properties. The invention thus enables compositions to be defined comprising flavour materials that enhance the antimicrobial efficacy of known antimicrobial agents against micro-organisms or metabolic processes associated with gum diseases. The invention also provides a consumer product, particularly an oral or dental care product, including such a flavour composition; a method for reducing or preventing gum disease; and use of the flavour compositions for reducing or preventing gum disease.

The invention relates to detection of a fluorescence method on metal ions, and particularly relates to a benzoyl hydrazine derivative P which identifies and detects two different metal ions Mg<2+> andAl<3+> separately in different pH conditions. The structural formula of the benzoyl hydrazine derivative P is as shown in a formula (1). The preparation method of the benzoyl hydrazine derivative P comprises the following steps: firstly, carrying out hydrazinolysis on ethyl salicylate; carrying out a reaction with o-hydroxy naphthaldehyde at a molar ratio of 1 to 1 for 4 hours at 80 DEG C in anhydrous ethanol; cooling the mixture and separating out a solid and carrying out suction filtration; washing the mixture with a lot of water and anhydrous ethanol successively; and drying the solid to obtain a light yellow solid pure product P. The benzoyl hydrazine derivative P can be used for detecting Mg<2+> and Al<3+> separately in different pH conditions as a fluorescent probe. The benzoyl hydrazine derivative P is obtained by means of an effective synthetic means and shows relatively good selectivity on the metal ions Mg<2+> and Al<3+> separately. On a basis of an optimized experimental condition, the metal ions Mg<2+> and Al<3+> can be detected separately. The formula is as show in the description.

The invention discloses a fiber penetrating swelling agent which comprises the compositions in weight portion: 0.00016 to 0.0006 portion of laurocapram, 1 to 5 portions of N-methyl pyrrolidone, 5 to 10 portions of diacetone alcohol, 5 to 15 portions of ethyl salicylate, and 5 to 10 portions of isopropyl salicylate. The invention also discloses a method for dyeing by the fiber penetrating swelling agent, comprising the following steps that: a reducing agent and sodium hydrate are used for reducing the dye by a vatting method; the weight ratio of a reducing solution to the dye is 37.5: 0.8 to 2.0; a leveling agent and the fiber penetrating swelling agent are added to dye or a buffering agent is added to adjust the pH value and is dyed by vat acid, the temperature is reduced and the mixture is washed; the mixture is subjected to oxidizing to develop color, fixing, reducing temperature and washing; the fresh water bath is performed, the fiber penetrating swelling agent is reduced and washed, and the temperature is reduced and the fiber penetrating swelling agent is produced. The fiber penetrating swelling agent ensures that the dye insoluble in water is effectively moistened and penetrated, and the fiber crystallizing area is effectively swelled to receive the dye; the fiber penetrating swelling agent ensures that a suspended solid is dyed evenly, has good homochromatism, improves the degree of dyeing, and solves the 'white core' problem of fiber.

The invention provides a method for synthesizing homosalate through an ester exchange reaction of methyl salicylate or ethyl salicylate and 3,3,5-trimethylcyclohexanol under the catalysis of an alkali. The method has the advantages of simple operation, high conversion rate, economy, environmental protection, and suitableness for industrial production.

The invention relates to an antibacterial natural plant essential oil foot washing liquid capable of relieving fatigue, which comprises the following main active components in parts by mass: 0.05-0.5 part of cedarwood essential oil, 0.05-0.5 part of ginger essential oil, 0.05-0.5 part of lemon essential oil, 0.05-0.5 part of cypress essential oil, 0.05-0.5 part of lavender essential oil, 0.05-0.5 part of tea tree essential oil, 0.5-10 parts of grape seed oil, 0.5-10 parts of almond oil, 1-10 parts of lauryl sodium sulfate, 1-5 parts of cocamidopropyl betaine, 5-12 parts of fatty alcohol-polyoxyethylene (9) ether, 4-10 pars of ethyl salicylate and 0.1-2 parts of citric acid. The natural plant essential oil foot washing liquid provided by the invention is capable of effectively relieving fatigue, cleaning the foot skin, inhibiting regeneration of skin epidermis bacteria and fungi as well as removing peculiar smell of feet, has the effect of nourishing and moistening the skin, is convenient to use, and is fragrant.

The invention relates to new ethyl salicylate glycosides, a synthetic method thereof, pharmaceutical compositions containing the ethyl salicylate glycosides, and applications of ethyl salicylate glycosides as medicaments, in particular antipyretic, analgesic, antiphlogistic and thrombosis inhibiting medicaments. The structural formula of the ethyl salicylate glycosides is as shown in the specification, wherein R is monosaccharide or disaccharide. The synthetic method provided by the invention has the advantages of simplicity, low synthesis cost and small environmental pollution; shown by activity evaluation, the ethyl salicylate glycosides have obvious antiphlogistic, analgesic and anti-platelet agglutination effects, the action time is prolonged, the adverse reaction is obviously reduced compared with salicylic acid medicaments, and mainly the stimulation to the gastrointestinal tract is reduced, therefore, the ethyl salicylate glycosides can be hopefully developed into new analgesic, antiphlogistic and thrombosis inhibiting medicaments with competitive power.

The invention discloses improved essential balm. The improved essential balm comprises: by weight, 30 to 35 parts of peppermint oil, 3 to 6 parts of wintergreen oil, 12 to 18 parts of eucalyptus essential oil, 8 to 10 parts of camphor, 3 to 6 parts of ethyl salicylate, 0.1 to 0.3 parts of lavender oil, 30 to 40 parts of liquid paraffin, 10 to 20 parts of glycerin, 2 to 8 parts of hydroxyethylcellulose and 0.1 to 0.3 parts of essence. The improved essential balm needs simple preparation processes, has a low price, and has good effects of treating cold, nasal obstruction, dizziness, heatstroke, muscle and bone ache, carsickness, seasickness, and skin redness and swelling.

The invention provides a fragrance essence with bacteriostatic efficacy components and a preparation method thereof. The fragrance essence with bacteriostasis effect is prepared from acetaldehyde, hydroxycitronellal, pinene, sabinene, beta-myrcene, limonene, leaf alcohol, ligustral, benzaldehyde, linalool, Bergapten, caryophyllene, linalyl acetate, beta fenchyl alcohol, anthemene, Neryl propionate, Florol, benzyl acetate, geranyl acetate, citronellyl acetate, nerol, methyl salicylate, ethyl salicylate, ethyl salicylate, Beta Damascone, phenethyl alcohol, allyl amyl glycolate, ionone, methyl anthranilate, watermelon ketone, Ambrox, Methyl dihydrojasmonate, isoeugenol, thyme oil, eugenol and the like. The fragrant raw materials used are convenient in sources, and the obtained essence has thefragrance characteristics of fresh fragrance, flower fragrance, fruit fragrance and pungent fragrance, and also has the fresh feeling of forests and nature, the overall fragrance is fine and smooth,and the fragrance essence has bacteriostatic effect.

The invention discloses an environment-friendly pre-treatment liquid for a printing and dyeing process. The liquid is prepared from the following components in parts by mass: 20-30 parts of fatty alcohol-polyoxyethylene ether, 20-25 parts of sodium alkyl alcohol ether carboxylate, 10-15 parts of lauryl azone, 3-6 parts of ethyl salicylate, 4-10 parts of isopropyl salicylate, 10-15 parts of secondary alkyl sulphonate, 1-2 parts of hydrogen peroxide, 1-5 parts of ethylene oxide, 1-5 parts of sodium chloride and 50-60 parts of deionized water. The liquid disclosed by the invention is reasonable in formula and simple in preparation method and can be used for treating a gray fabric during printing and dyeing, so that the subsequent dyeing effect is good.

The invention discloses a fabric printing and dyeing pretreatment process. The fabric printing and dyeing pretreatment process comprises the steps of seam allowance releasing, singeing, boiling off and bleaching. In the boiling off, a singed gray fabric is treated by using an environmentally-friendly printing and dyeing aid. The environmentally-friendly printing and dyeing aid consists of the following components in parts by mass: 20-30 parts of fatty alcohol-polyoxyethylene ether, 15-25 parts of alkyl alcohol ether carboxylate, 5-10 parts of diacetone alcohol, 3-6 parts of ethyl salicylate, 4-10 parts of isopropyl salicylate, 10-15 parts of sodium sulfonate, 5-10 parts of ammonium carbonate, 2-6 parts of sodium hydroxide, 1-5 parts of sodium chloride, 1-5 parts of sodium carbonate and 50-60 parts of deionized water. Through the mode, the environmental pollution in a printing and dyeing process is reduced.

The invention relates to an energy-saving and emission-reducing assistant for printing and dyeing, which comprises an assistant 1 and an assistant 2, wherein the assistant 1 comprises the following components in parts by weight: methylpyrrolidone, diacetone alcohol, salethyl, isopropyl salicylate and lauryl azone; and the assistant 2 comprises the following components in parts by weight: rare earth oxide, oxalic acid, water and ammonium carbonate. The production process of the assistant 1 comprises the steps of: adding the methylpyrrolidone in a reaction vessel, raising the temperature and then adding the diacetone alcohol, the salethyl,the isopropyl salicylate and the lauryl azone, reacting under the condition of preserving the temperature until the pH value is 6-6.5, and finally obtaining the assistant 1. The production process of the assistant 2 comprises the steps of: adding the oxalic acid and the water into the rare earth oxide La2O3, and then stirring with a high-speed stirring machine, adding the ammonium carbonate and the water, then stirring for 3-6min at a high speed, standing, and storing in a dark place.

The invention discloses chilblain cream and a preparation method thereof. The chilblain cream comprises the following components in parts by weight: 20-40 parts of ethyl salicylate, 30-50 parts of glycerin monostearate, 10-20 parts of Vaseline, 10-20 parts of ethyl p-hydroxybenzoate, 1-3 parts of triethanolamine, 3-5 parts of water-soluble lanolin, 4-6 parts of menthol phenol, 20-40 parts of glycerol, 20-40 parts of polyvinyl alcohol, 0.2-0.4 parts of jasmine essence, and 600-800 parts of water. Compared with the prior art, the chilblain cream has the following benefits that (1) the chilblain cream has good effects on treating and preventing chilblain, and (2) the chilblain cream has functions of promoting blood circulation and dissipating blood stasis.

The invention discloses a composite material of an automobile fender. The composite material is prepared from, by weight, 20-25 parts of acrylonitrile, 7-10 parts of butadiene, 8-15 parts of styrene, 6-11 parts of polyformaldehyde, 4-8 parts of polyamide, 12-15 parts of black carbon, 11-16 parts of zirconium oxide, 8-20 parts of nano molybdenum disulfide, 15-20 parts of boron nitride, 6-11 parts of ethyl salicylate, 7-12 parts of methylaluminoxane, 3-5 parts of biszirconium dichloride, 22-24 parts of p-phenylenediamine, 6-9 parts of ethoxyquinoline, 14-18 parts of maleic anhydride, 3-6 parts of magnesium hydrate, 12-14 parts of talcum powder, 15-20 parts of poly4-methyl-1-pentene, 6-9 parts of titanium oxide, 8-11 parts of phenyl-o-hydroxybenzoate, 3-9 parts of hexamethyl phosphoryl triamide and 2-4 parts of kaolin. The composite material of the automobile fender is high in structural strength and good in abrasion resistance property and meanwhile can be normally used in the environment wide in temperature range.

The invention relates to a footbath liquid, which is characterized by containing the following components: 15%-20% of isopropanol, 10%-15% of a saffron extracted liquid, 2%-5% of a wild chrysanthemum extracted liquid, 1%-5% of ethyl salicylate, 5%-8% of deionized water, 1%-6% of glycerin, and 0.2%-3% of a mint extracted liquid. The footbath liquid provided by the invention can improve blood circulation, remove sweat, eliminate odor, and prevent dry and crack, also does not contain any harmful substance, and is safe and non-stimulating.

The invention belongs to the field of medical pharmacy, and in particular relates to an emulsifiable paste composed of western medicines for treating pressure sores and a preparation method of the emulsifiable paste. The emulsifiable paste is characterized by taking dexamethasone acetate, clarityne and ofloxacin as medical ingredients. The emulsifiable paste is composed of the following ingredients: 50g to 230g of glycerin, 0g to 2g of ethyl salicylate, 0.8g to 1.6g of dexamethasone acetate, 1g to 2.4g of clarityne, 16g to 18.2g of ofloxacin, 50g to 120g of stearic acid, 30g to 75g of octadecanol, 0g to 1g of 2,6-Di-tert-butyl-p-cresol, 0g to 12g of laurocapram, 60g to 120g of liquid paraffin, 4g to 20g of triethanolamine and the balance of water, wherein the sum of the content of all the ingredients is 1000g; the ingredients are prepared into an O / W type emulsifiable paste or a W / O type emulsifiable paste. The emulsifiable paste has the advantages that (1) the emulsifiable paste is scientific and reasonable in formula and has a rapid therapeutic effect on the pressure sores; (2) the emulsifiable paste is good in antibacterial, anti-inflammatory and analgesic effects, high in water retention rate and good in breaking and tearing strength, and is capable of preventing seepage from overflowing and promoting the formation of granulation tissues and epithelial tissues so as to achieve the effects of rapid skin tissue healing and repair; (3) the emulsifiable paste is good in performance, low in cost and convenient to use.

The invention discloses a formula of a foot-washing liquid, which comprises the following components in percentage by weight: 1-5% of lauryl sodium sulfate, 2-8% of cocamidopropyl betaine, 1-3% of ethyl salicylate, 1-5% of glycerol, 1-5% of white oil, 0.1-1% of Chinese wolfberry extract, 0.1-1% of ginger extract, 0.1-1% of rutin and the balance of deionized water. The foot-washing liquid adopting the formula disclosed by the invention has a good decontamination effect, can be used for moistening the foot skin, and has deodorization and sterilization functions.

The invention belongs to the field of chemical engineering, and particularly discloses a synthetic method of ethyl salicylate with high purity and conforming to drug use. The method comprises the steps of using sulfuric acid for catalytic synthesis of the ethyl salicylate, washing a product and purifying the product; a mixture of ethanol and water is collected while ethanol with high concentration is added to a reaction system in the synthesis process, forward esterification reaction can be effectively promoted, and the improvement of the reaction yield is facilitated; the obtained ethyl salicylate product is high in purity, no unknown impurities are introduced, the requirements of the drug use are met, the quality is guaranteed from raw materials, and the unknown risk of the product during clinical use is reduced.

The invention discloses a treatment solution for a textile printing and dyeing pretreatment process. The treatment solution is prepared from the following components in parts by weight: 20-30 parts of fatty alcohol-polyoxyethylene ether, 20-30 parts of dodecyl alcohol, 15-20 parts of diacetone alcohol, 10-15 parts of ethyl salicylate, 2-5 parts of barium chloride, 5-10 parts of sodium sulfide, 2-5 parts of sodium hydroxide, 5-10 parts of ammonium carbonate and 50-60 parts of de-ionized water. The treatment solution can be used for treating blank cloth well in a printing and dyeing process so that the color can be more easily fixed when the blank cloth is sequentially dyed, and the printing effect is good.

The invention provides a pressure-sensitive adhesive composition. The pressure-sensitive adhesive composition is prepared from the following raw materials in parts by weight: 60 to 80 parts of acrylate, 20 to 30 parts of acrylic acid, 6 to 9 parts of ethyl salicylate, 5 to 8 parts of starch acetate, 3 to 6 parts of sodium alginate, 22 to 35 parts of isopropanol, 2 to 5 parts of aziridine and 6 to 10 parts of polyethylene glycol. The pressure-sensitive adhesive composition does not use other organic solvents except the isopropanol, and the prepared pressure-sensitive adhesive has certain moisture resistance and does not fall off after being attached to the skin for 3 hours.

The invention belongs to the field of chemical engineering, and particularly discloses a synthetic method of ethyl salicylate with high purity and conforming to drug use. The method comprises the steps of using sulfuric acid for catalytic synthesis of the ethyl salicylate, washing a product and purifying the product; a mixture of ethanol and water is collected while ethanol with high concentration is added to a reaction system in the synthesis process, forward esterification reaction can be effectively promoted, and the improvement of the reaction yield is facilitated; the obtained ethyl salicylate product is high in purity, no unknown impurities are introduced, the requirements of the drug use are met, the quality is guaranteed from raw materials, and the unknown risk of the product during clinical use is reduced.

The invention relates to an antibacterial and fatigue-relieving natural plant essential oil footwash. The main active components and their mass parts are: 0.05-0.5 parts of cedar essential oil, 0.05-0.5 part of ginger essential oil, 0.05-0.5 part of lemon essential oil, silk Cypress essential oil 0.05-0.5 parts, lavender essential oil 0.05-0.5 parts, tea tree essential oil 0.05-0.5 parts, grape seed oil 0.5-10 parts, almond oil 0.5-10 parts, sodium lauryl sulfate 1-10 parts, cocamide 1-5 parts of propyl betaine, 5-12 parts of fatty alcohol polyoxyethylene (9) ether, 4-10 parts of ethyl salicylate, 0.1-2 parts of citric acid. The natural plant essential oil footwash of the invention can effectively relieve fatigue, clean the skin of the feet, inhibit the regeneration of bacteria and fungi on the skin epidermis, remove the peculiar smell of the feet, and at the same time have the effect of moisturizing the skin, is convenient to use, and has a pleasant fragrance.

The invention discloses a fiber penetrating swelling agent which comprises the compositions in weight portion: 0.00016 to 0.0006 portion of laurocapram, 1 to 5 portions of N-methyl pyrrolidone, 5 to 10 portions of diacetone alcohol, 5 to 15 portions of ethyl salicylate, and 5 to 10 portions of isopropyl salicylate. The invention also discloses a method for dyeing by the fiber penetrating swelling agent, comprising the following steps that: a reducing agent and sodium hydrate are used for reducing the dye by a vatting method; the weight ratio of a reducing solution to the dye is 37.5: 0.8 to 2.0; a leveling agent and the fiber penetrating swelling agent are added to dye or a buffering agent is added to adjust the pH value and is dyed by vat acid, the temperature is reduced and the mixtureis washed; the mixture is subjected to oxidizing to develop color, fixing, reducing temperature and washing; the fresh water bath is performed, the fiber penetrating swelling agent is reduced and washed, and the temperature is reduced and the fiber penetrating swelling agent is produced. The fiber penetrating swelling agent ensures that the dye insoluble in water is effectively moistened and penetrated, and the fiber crystallizing area is effectively swelled to receive the dye; the fiber penetrating swelling agent ensures that a suspended solid is dyed evenly, has good homochromatism, improves the degree of dyeing, and solves the 'white core' problem of fiber.

The invention discloses a blocking remover composition for the barite pollution of an oil and gas well. The blocking remover composition is characterized by being prepared from the following raw materials in parts by weight: 16 to 20 parts of hydroxyethyl acetamide, 20 to 25 parts of amino acetamide, 13 to 16 parts of 3-amino-1,2,4-triazole, 12 to 16 parts of cinnamamide, 10 to 14 parts of crown ether (18-crown-6), 6 to 9 parts of sodium dihydroxytartrate, 17 to 21 parts of ethosuximide, 11 to 15 parts of ethyl salicylate, 1 to 3 parts of p-hydoxyphenylactic acid, 25 to 35 parts of ammonia liquor (40wt%), and 90 to 110 parts of water. The blocking remover can be used in a temperature range from a room temperature to 100 DEG C, and can solve the blocking and barite pollution of an oil and gas well within 4 to 8 hours. The dissolution rate of barite is greater than 90%, and the scale removing rate is more than 98%. During the de-blocking process, no corrosion happens, no dead angle exists, no scale or precipitate is generated, secondary blocking is avoided, the de-blocking speed is quick, the waste liquid does not need to be delivered to the ground, and the de-blocking is safe and corrosion-free.

The invention belongs to the field of medicines, and relates to an ophthalmic pharmaceutical composition. The composition comprises 1 part by weight of an active pharmaceutical component and 0.02-200parts by weight of a liquid matrix, wherein the active pharmaceutical component is selected from at least one of anti-tumor drugs, anti-inflammatory drugs, immunosuppressive agents, angiogenesis inhibitors and glaucoma treatment drugs; and the liquid matrix is selected from at least one of methyl salicylate, ethyl salicylate, propyl salicylate, butyl salicylate, benzyl salicylate, phenethyl salicylate and phenylpropyl salicylate. The present invention also relates to an ophthalmic pharmaceutical box and a medicinal application of the ophthalmic pharmaceutical composition and the ophthalmic pharmaceutical box. The ophthalmic pharmaceutical composition can be injected into the eyes, slowly releases the active pharmaceutical component in the eyes for a long term, and can be degraded in the eyes.

The invention belongs to the technical field of pesticides, and particularly relates to a low-volatility coated insecticidal abamectin composition. The composition comprises abamectin and a solvent, and further comprises dioctyl sulfosuccinate sodium salt, wherein the solvent comprises DMF, xylene and ethylene glycol. The abamectin composition provided by the invention has the advantages that theadhesion is excellent; the activity capability of pests can be limited; a film is formed to coat the pests, an air valve is closed, respiratory inhibition is carried out, suffocation death of pest ispromoted, the wax layer on the body surface of pests is dissolved, dehydration and death of the pest are accelerated, the insecticidal effects are greatly improved in comparison with the prior art, alight stabilizer formed by mixing ethyl salicylate, pyroligneous liquor and carnosol is added, so that the light stability of the composition can be improved, the degradation half-life period can be prolonged, and the insecticidal composition has a relatively long lasting period.

The invention discloses edible Jinjunmei black tea essence and a preparation method thereof. A formula of the edible Jinjunmei black tea essence comprises geraniol, phenethyl alcohol, linalool, beta-pinene, hexanoic acid, nerol, fragrant folic acid, benzyl acetate, geranyl acetate, isovaleric acid, dihydroactinidiolide, leaf alcohol, white lemon oil, alpha-terpilenol, methyl salicylate, black tea tincture, 6-acetyloxydihydrotheaspirane, 5-methyl-2-phenyl-2-hexenal, ethyl maltol, ethyl salicylate, 2-acetyl pyrrole, 4-hydroxy-2-butenoic acid gamma-lactone, furfural, 3-hydroxy-2-butanone, 2-acetyl furan, 2-methylpyrazine, vanillin, gamma-caprolactone, beta-methylindole, styracitol and ethyl vanillin. All the above raw materials are mixed in proportion to obtain the edible Jinjunmei black tea essence. The Jinjunmei black tea essence disclosed by the invention is rich in sweet fragrance, good in naturalness and low in cost, can be widely applied to food and beverages, and improves the economic benefits of commodities.

The invention discloses preparation and application of bisphenol A disalicyate in an anti-aging foamed material. The preparation comprises the following steps: performing reaction on ethyl salicylate and bisphenol A under the action of a catalyst of monobutyltin oxide so as to obtain a crude product of bisphenol A disalicyate, commixing the crude product with carbon black, 2,4-dyhydroxyl benzophenone and an antioxidant, further modifying with low-temperature plasma so as to obtain an ultraviolet absorbent with relatively wide absorption wavelengths, further mixing with other foamed material preparation materials, thereby obtaining the expected anti-aging foamed material. Under the synergic action of the 2,4-dyhydroxyl benzophenone with a relatively wide absorption wavelength range and the carbon black and the antioxidant, the absorption wavelengths for ultraviolet rays are effectively widened, the prepared foamed material not only has various excellent properties essential for common foamed materials, but also has good full wavelength ultraviolet resistance, and the service life the appearance attractive durability of a product made of the anti-aging foamed material are greatly prolonged.

The invention belongs to the technical field of dyeing, and provides a dyeing accelerant for color matching and dyeing of polylactic acid. The dyeing accelerant comprises the following components in parts by weight of 10-50 parts of ethyl salicylate, 10-25 parts of ethyl benzoate, 1-10 parts of diethylenetriaminepenta acid, 1-5 parts of citric acid, 1-5 parts of ethyl propionate and 50-60 parts of water. According to the invention, the ethyl salicylate and the ethyl benzoate are used as main raw materials, and the ethyl propionate is added at the same time, so that dye is promoted to enter polylactic acid, and the dyeing rate and the color matching stability are improved; the diethylenetriaminepenta acid is added to promote the dyeing and diffusion of the dye, and meanwhile, the diethylenetriaminepenta acid and the citric acid improve the compatibility of the system, so that the effect of the dyeing accelerant in color matching and dyeing of the polylactic acid is fully exerted; and the dyeing accelerant for color matching and dyeing of the polylactic acid is used for color matching and dyeing of a polylactic acid fabric, the dyeing percentage is 85.90%, the dry rubbing color fastness of the dyed polylactic acid fabric is the grade 4, and the wet rubbing color fastness is the grade 4-5.