Extraction Of Cinnamomum Camphora Fruit Dyes, Cinnamomum Camphora Oil And Preparation Of Their Corresponding Compounds

In recent years, natural product extracted from plants and its application on textile has attracted people's awareness due to the imoprovement of environmental protection. Cinnamomum camphora tree is a common plant in south and southwest China, which produces lots of Cinnamomum camphora fruit each autumn. Cinnamomum camphora fruits contain a large amount of natural dyes and essential oil, which can be applied on textile dyeing and functional finishing. In this paper, the extracting processes of the natural dyes and Cinnamomum camphora oil from Cinnamomum camphora fruits were investigated. Dyeing properties, such as dyeing process, dyeing performance and dyeing mechanism of Cinnamomum camphora fruit dyes to wool fabrics were studied. Moreover, the Cinnamomum camphora oil microcapsule and doped Cinnamomum camphora oil composites were developed, and their application performances were also investigated.The natural dyes were extracted with the mixture EtOH/H2 O solvent. The results showed that increasing the amount of ethanol improved the extract rate of natural dyes. The optimal extracting condition was that the mass ratio of water to ethanol was 1:1, the liquid ratio of Cinnamomum camphora fruit to mixture solvent was 1:15, Tween-80 concentration was 5.0 %, ammonium sulfate concentration was 30 %, the temperature and time was 55? and 2.0h, respectively. HPLC-MS spectra indicated that the Cinnamomum camphora fruit dyes were mainly consisted of cyanidin glycosides and cornflower glucoside, with the molecular was 449 and 595 respectively. The color hue of the Cinnamomum camphora fruit dyes changed with extraction pH with a rule that the maximum absorption wavelength of Cinnamomum camphora fruit dyes shifted to the long wavelength by pH increasing. The color hue of Cinnamomum camphora fruit dyes is purple when pH < 5.0 and the brighter color was observed at lower pH. In addition, Cinnamomum camphora oil can also be extracted by immersion method. HPLC-MS spectra indicated that Cinnamomum camphora fruit oil mainly consisted of eucalyptol, Cinnamomum camphora and isosafrole components etc.The wool fabrics were dyed with Cinnamomum camphora fruit dyes, and the dyeing process and dyeing kinetics were dicussed. The result showed that antimony potassium tartrate can effectively improve color strength of the dyed wool fabrics, and the optimal dyeing condition for one-bath dyeing were that the amount of potassium antimony potassium was 2.5 %?o.m.f?, dyeing temperature 100 oC, time 60 min and p H=5.0, respectively. Cinnamomum camphora fruit dyes absorption on wool fabrics were fitted with the Langmuir adsorption isotherm, with the adsorption saturation value of the Cinnamomum camphora fruit dyes on the wool fabrics was 8.12mg/g, 9.23mg/g and 11.5 mg/g respectively when the dyeing temperature was corresponding to 80 oC, 90 oC and 100 oC.Colorful SiO₂ have been produced by Cinnamomum camphora fruit dyes and cationic porous nanoscale SiO₂ The optimal condition for preparation of colorful SiO₂ was that the concentration of cationic porous nanoscale SiO₂ and and Cinnamomum camphora fruit dyes was 2 % abd 2 % respectively, pH=9, adsorption temperature 50 oC for 2.0h. The cationic porous nanoscale SiO₂ was prepared by porous nanoscale SiO₂ reacting with 3-chloro-2-three hydroxy propyl methyl ammonium chloride under the optimal condition that the concentration of 3-chloro-2-three hydroxy propyl methyl ammonium chloride was 2 %, the content of porous nanocale SiO₂ in the dispersion was 2 %, temperature, modified time and pH were 60 oC, 1.5h and 11, respectively The colorful SiO₂ showed excellent stability in water, while was easy to migrate into ethanol and destroy under acid or alkali, high temperature and light conditions. The printed cotton fabrics with colorful nanoscale SiO₂ had good resistance to UV light, and showed silimar reflectance in the visible light and near infrared with the the same color hue of camouflage coating, which can meet the temporary camouflage of military targets.Cinnamomum camphora oil was doped with latex by miniemulsion polymerization using reactive dispersant DNS-86 and azodiisobutyronitrile?AIBN? as initiator. The results revealed that the Cinnamomum camphora oil was successfully embedded into the formed latex under the optimal condition that the mass ratios of Cinnamomum camphora oil, DNS-86, HD and AIBN to monomer were 6.0 %, 20 %, 2.5 % and 1.5 % respectively, with reaction temperature at 70 oC for 150 min. The doped Cinnamomum camphora oil latex composites dispersion had an enhanced stability to temperature and improved performance on control of Cinnamomum camphora oil release.Cinnamomum camphora oil micocapsule were prepared by miniemulsion polymerization using APS as initator and SDS as dispersant, and their character was tested by Infrared spectroscopy?FTIR?, transmission electron microscopy?TEM? and thermos-gravimetric analysis?TGA?. Cinnamomum camphora oil was embedded into the formed latex under the optimal condition that the mass ratios of Cinnamomum camphora oil, SDS, HD and APS to monomer were 30 %, 6.7 %, 4 % and 2.7 % respectively, with reaction temperature at 70 oC for 150 min. The TGA experimental results indicated that 20 % Cinnamomum camphora oils?based on the weight of Cinnamomum camphora oil micocapsule? were successfully embedded into the latexes. The mean particle size of the doped Cinnamomum camphora oil latex composites was 90.0 nm. Application properties of Cinnamomum camphora oil micocapsule, such as sustained release, storage stability and antibacterial properties were further investigated. The results indicated that the latexes encircled on Cinnamomum camphora oil can hinder the Cinnamomum camphora oil releasing. The antibacterial rate of the finished cotton fabrics for E.coli and S. aureus was reached to 67.21 % and 41.59 % respectively.This research reached goals of comprehensive utilization of Cinnamomum camphora fruit extract in textiles, which help achieve the cleaner textiles production, beautify the city environment, and broaden the natural source for the textile dyeing and finishing auxiliaries.