7 results about "Cochineal red" patented technology

The invention relates to the technical field of compound coloring agents, in particular to a compound coloring agent heat-resistant cochineal lake microcapsule as well as a preparation method and application thereof. The heat-resistant cochineal lake microcapsule provided by the invention is realized by the following four steps: construction of an inner layer lipid phase, pre-coating of cochineal lake-lipid, assembly of an outer layer water phase and heat-ion double-crosslinking curing. The heat-resistant cochineal lake microcapsule is prepared from the following components in percentage by mass: 1 to 10 percent of cochineal lake, 5 to 30 percent of lipid, 50 to 90 percent of water phase and 1 to 20 percent of cross-linking agent. According to the method, the problem of color bleeding (color bleeding caused by a food matrix environment and high-temperature sterilization) when cochineal lake particles are applied to food can be avoided. The heat-resistant cochineal lake microcapsule is obviously superior to the prior art in the aspects of bleeding blocking efficiency (bleeding rate at 121 DEG C is less than 2), processing applicability (blending and shearing resistance) and the like, and has high industrial value.

The present invention relates to a multifunctional cotton fabric based on cochineal red-chitosan composite microspheres and a preparation method thereof, and belongs to the technical field of cotton fabrics. The present invention first uses cochineal red, chitosan and polyaziridine to prepare cochineal red-chitosan composite microspheres with uniform size, small size and high balling rate; then sodium periodate, chitosan and sodium borohydride are used to amino-modify cotton fabric, and cochineal red-chitosan composite microspheres are adsorbed on its surface; finally, 1,2,3,4-butanetetracarboxylic acid and sodium hypophosphite are used for modification treatment, so that it can be chemically bonded with cochineal red-chitosan composite microspheres, so as to enhance the fastness of cochineal red-chitosan composite microspheres on cotton fabrics. The prepared multifunctional cotton fabric not only has excellent mildew and antibacterial properties, but also has a red appearance, and the cochineal red-chitosan composite microspheres are stably fixed on the surface of cotton fabrics and are not easy to fall off.

The application discloses a freshness indicating film based on cochineal carmine and a preparation method thereof, and raw materials include cochineal carmine, a pH value regulator and a polymer base film. The application composites the cochineal carmine and a biological base material with good loading performance to obtain a food freshness indicating film, utilizes the characteristics that the cochineal carmine has strong light and heat stability and can have more stable structure under a complex light and heat environment, further improves the stability of the freshness indicating film, and further improves the accuracy of color freshness monitoring and indicating effect of the freshness indicating film, and solves the problem of poor light and heat stability of the freshness indicating film of a natural dye food indicator using anthocyanin, curcumin and shikonin.

The present invention discloses a method for preparing aluminum-free carmine pigment microemulsion, comprising the following steps: S1: mixing a whey protein isolate solution with an aluminum-free carmine pigment solution, adding a copigment solution, adjusting the pH to 3-6, obtaining a premixed pigment solution, and mixing the premixed pigment solution with a cosurfactant, glycerol, in a 1:1 ratio to form a new aqueous phase; S2: mixing oil and a mixed emulsifier to obtain an oil phase; and S3: dropwise adding the aqueous phase formed in S1 to the oil phase obtained in S2 to obtain the aluminum-free carmine pigment in a microemulsion. The present invention utilizes the synergistic effect of protein and polyphenol copigments with the aluminum-free carmine pigment, as well as the encapsulation effect of the microemulsion, to enhance the stability of the aluminum-free carmine pigment. The method is simple to operate, non-toxic, and harmless, effectively inhibiting the degradation and fading of the aluminum-free carmine pigment caused by light exposure, and has good application prospects in the processing of oily liquids and solid foods.

The present application relates to the technical field of pearl pigment, and particularly relates to an inorganic pearl pigment with imitation cochineal red phase and a preparation method thereof. The inorganic pearl pigment with imitation cochineal red phase comprises a lamellar base material, the lamellar base material is sequentially coated with coating layers with different refractive indexes, and the coating layers comprise a first layer of high-refractive-index metal oxide, a low-refractive-index crosslinking layer, a promoting layer and a second layer of high-refractive-index metal oxide arranged in sequence. The purpose is to make the pearl pigment composition free of any organic colorant, and the prepared pearl pigment with imitation cochineal red phase has high brightness and color saturation, the stacking color phase is comparable to cochineal red lake, and the pearl pigment with imitation cochineal red phase also has good dispersibility, solvent resistance and weather resistance.

The utility model relates to the technical field of cochineal red pigment extraction, specifically a kind of extraction device of cochineal red pigment, including temperature-controllable jar body, the jar body top is provided with inlet pipe, the jar body bottom one side is provided with feed pipe, the jar body one side is provided with drain pipe, the jar body bottom is connected with unloading assembly, the jar body is provided with the lift pressure filter assembly that can be adjusted up and down, the jar body is provided with stirring mechanism, the jar body top is equipped with the circulation assembly for pumping the extraction liquid in the jar body top, the outlet end of the circulation assembly is connected with annular liquid guide component extending to the lift pressure filter assembly upper side, the utility model can realize the purpose of shortening extraction period, improving extraction rate, increase initial solid-liquid separation function simultaneously, reduce subsequent separation workload.

The invention provides a fused lipstick and a preparation method thereof, and relates to the field of lipstick preparation. The fused lipstick comprises the following raw materials by weight: 2 to 5 g of cochineal, 3 to 7 g of beeswax, 12 to 18 g of sweet almond oil, 0.2 to 0.5 g of vitamin E oil, 0.05 to 0.15 g of jasmine flower essence, 1.2 to 2 g of cacumen biotae powder, 1 to 2 g of honeysuckle flower powder, 1 to 2 g of radix angelicae powder, 1 to 3 g of aloe powder, 0.5 to 1.5 g of a black tea extract, 0.08 to 0.16 g of a blumea balsamifera extract, 0.3 to 0.8 g of coconut oil and 0.2 to 0.5 g of resveratrol. According to the fusion type lipstick, the sweet almond oil is added, the sweet almond oil is rich in various unsaturated fatty acids, especially oleic acid and linoleic acid, and the fatty acids can form a layer of protective film on the surface of skin to reduce water evaporation, so that the lip is kept moist, the skin is protected, the skin is protected, and the skin is protected. The resveratrol and the blumea balsamifera extract are jointly used, so that the stability of the lipstick can be effectively improved.