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Journal articles on the topic 'Lac dye'

Author: Grafiati

Published: 9 September 2021

Last updated: 29 July 2025

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1

P., C. SARKAR, M. PRASAD K., and K. SHRIVASTAVA A. "Spectrophotometric Estimation of Lac Dye." Journal of Indian Chemical Society Vol. 75, Mar 1998 (1998): 183–84. https://doi.org/10.5281/zenodo.5916697.

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LP & PD Division, Indian Lac Research Institute (!CAR), Namkum, Ranchi-834 010 Chemistry Department, Ranchi College, Ranchi University, Ranchi-834 008 <em>Manuscript received 21 February 1997, revised 2 June 1997, accepted 13 June 1997</em> The spectrophotometric estimation of the actual dye content in lac dye samples for use in lac industrial units is reported.

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2

Zhang, Hong, Gui Gan Fang, Hua Zheng, Yuan Heng Guo, and Kun Li. "Study on the Antioxidation of Lac Dye." Applied Mechanics and Materials 140 (November 2011): 451–58. http://dx.doi.org/10.4028/www.scientific.net/amm.140.451.

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To investigate the in vitro antioxidation and antimicrobial activity of the lac dye, in this study, three free radicals DPPH·, ABTS+and O2ˉ· are used as the test objects to evaluate the free radial scavenging ability of the lac dye by comparing the absorbance change of free radical solution under specific wavelength. The results showed that, the lac dye has scavenging activity on DPPH· and ABTS+, but has no scavenging activity on O2ˉ·; when the lac dye reached a certain concentration, its scavenging rate on DPPH· and ABTS+can be as high as 68% and 87% respectively, with the antioxidant activit

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3

Kim, Tae Young, Nam Jin Jeon, Ho Young Jung, Ji Hyun Kim, and Sung Yong Cho. "Adsorption and Photovoltaic Properties of Lac-Color on TiO2 for Dye-Sensitized Solar Cells." Journal of Nanoscience and Nanotechnology 20, no. 3 (2020): 1989–92. http://dx.doi.org/10.1166/jnn.2020.15958.

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The adsorption and photovoltaic characteristics of Lac-color on TiO2 thin film for dye-sensitized solar cells were investigated. The adsorption isotherms of Lac-color on TiO2 thin film could be represented by the Langmuir equation. The adsorption capacity of Lac-color on TiO2 thin film increased with increasing temperature. The photovoltaic conversion efficiencies of Lac-color increased with increasing amount of dye adsorbed on TiO2 photo electrode. The energy conversion efficiency of Lac-color was 0.12%.

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Khatun, Seatara, G. R. M. Astaq Mohal Khan, M. L. Rahman, Kobad Hossain, Md Jahidul Islam, and Ayesha Akhtar. "Isolation and Utilization of Natural Dye (Lac Dye and Arjun Dye)." IOSR Journal of Applied Chemistry 7, no. 2 (2014): 74–76. http://dx.doi.org/10.9790/5736-07217476.

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5

Wang, Qingqing, Tingting Wang, Zihao Lv, et al. "TiO2 Sol-Gel Coated PAN/O-MMT Multi-Functional Composite Nanofibrous Membrane Used as the Support for Laccase Immobilization: Synergistic Effect between the Membrane Support and Enzyme for Dye Degradation." Polymers 12, no. 1 (2020): 139. http://dx.doi.org/10.3390/polym12010139.

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Removal of a triphenylmethane dye (crystal violet, CV) by a simultaneous enzymatic-photocatalytic-adsorption treatment was investigated in this work. A desirable synergistic effect on dye treatment was achieved by decorating laccase (Lac) onto the surface of TiO2 sol-gel coated polyacrylonitrile/organically modified montmorillonite (PAN/O-MMT) nanofibers prepared by electrospinning. The assembly of Lac on the surface of PAN/O-MMT/TiO2 nanofibers was confirmed by confocal laser scanning microscope (CLSM). In comparison with free Lac, the immobilized Lac showed better pH, temperature and operati

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Zhang, Hong, Zhi Wang, Fengxi Li, Lei Wang та Bo Ren. "Immobilization of Laccase in β-Cyclodextrin Composite Hydrogel for Efficient Degradation of Dye Pollutants". Catalysts 14, № 8 (2024): 473. http://dx.doi.org/10.3390/catal14080473.

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A stable and efficient biocatalyst was prepared by encapsulating Trametes versicolor laccase using an acrylic acid-grafted β-cyclodextrin hydrogel (Lac-CD-PAA). Scanning electron microscopy and nitrogen adsorption-desorption experiments showed that there were regularly distributed channels in the spongy Lac-CD-PAA. In addition, a large number of mesopores and macropores existed in the wall of the hydrogel lamellae. This network structure reduced the diffusion resistance of the hydrogel to the target substrate. The relative activity of the resulting Lac-CD-PAA could be maintained at 35.8% after

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7

El Sayed, Naglaa AA, Magda A. El-Bendary, and Omnia Kh Ahmed. "A sustainable approach for linen dyeing and finishing with natural lac dye through chitosan bio-mordanting and microwave heating." Journal of Engineered Fibers and Fabrics 18 (January 2023): 155892502311558. http://dx.doi.org/10.1177/15589250231155882.

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Sustainability has become a global requirement in all industries. In the textile sector sustainability can be achieved by developing innovative techniques, approaches, and machinery. The current study introduces a sustainable approach for linen dyeing with natural lac dye using microwave heating after the treatment with chitosan as a cationic bio-mordant. The chitosan treatment was carried out by a pad/dry-cure process with citric or acetic acid. Linen samples were characterized by scanning electron microscopy (SEM), and fourier transform infrared spectroscopy (FTIR). The results confirmed the

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8

Shamim, Gulsaz, SanjeevKumar Ranjan, DevMani Pandey, KewalKrishan Sharma, and Rangnathan Ramani. "Lac dye as a potential anti-neoplastic agent." Journal of Cancer Research and Therapeutics 12, no. 2 (2016): 1033. http://dx.doi.org/10.4103/0973-1482.155975.

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9

Badhani, Gaurav, Shruti Yadav, Elen Reji, and Subbarayappa Adimurthy. "Recovery of Lac Resin from the Aqueous Effluent of Shellac Industry." Sustainable Chemistry 4, no. 1 (2022): 1–7. http://dx.doi.org/10.3390/suschem4010001.

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Shellac and aleuritic acid manufacturing industries generate a lot of alkaline aqueous effluent during the process of manufacture of shellac and aleuritic acid from the seedlac/sticklac. The generated effluent contains lac resin, lac wax, lac dye and other water-soluble organic acids. Shellac industries in India face problems with the disposal of aqueous effluent due to the presence of considerable amounts of natural organic molecules and the dark colour solution. To address these problems, we have developed a novel method for the selective recovery of the lac resin from the alkaline aqueous e

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10

Ramani, R., and K. Sharma. "Record of natural infestation of the Indian Lac Insect, Erria Lacca (Kerr) (Coccoidea: Tachardiidae) on Acacia Tortilis (Forsskal) Hayne and Calliandra Surinamensis Benth." Indian Journal of Forestry 33, no. 2 (2010): 189–91. http://dx.doi.org/10.54207/bsmps1000-2010-lf2jlk.

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The Indian lac insect Kerria lacca (Coccoidea: Tachardiidae) is a beneficial insect, exploited commercially for lac, from which economically important resin, dye and wax are obtained. Natural infestations of this species have been recorded on two hitherto unreported host plants, Acacia tortilis (Forsskal) Hayne and Calliandra surinamensis Benth. Both species belong to Fabaceae, the family which comprises of about one-thirds of reported lac host species. Fairly large populations of the lac insects of good density have been observed on these hosts, indicative of good survival of the lac insect.

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11

Zhang, Kun, Yeying Wu, Juan Huang, and Youxun Liu. "Environmentally Friendly and Recyclable Natural-Mediator-Modified Magnetic Nanoparticles for Laccase-Catalyzed Decolorization." Journal of Chemistry 2019 (December 11, 2019): 1–12. http://dx.doi.org/10.1155/2019/4140565.

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The high cost, potential toxicity, and possible enzyme inhibition ability of artificial mediators have limited the large-scale application of laccase (Lac)/mediator systems. Here, sinapic acid (SA), a natural mediator, was covalently attached to amino-functionalized magnetic nanoparticles (MNPs) via amide bond formation. The as-prepared SA@MNPs were characterized by Fourier-transform infrared spectroscopy, scanning electron microscopy, cyclic voltammetry, and thermogravimetric analysis. The SA@MNPs were then applied to evaluate the activity of the immobilized mediator for Lac-catalyzed dye dec

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12

Deb, Amal Kanti, Md Aftab Ali Shaikh, Md Zakir Sultan, and Md Israil Hossain Rafi. "Application of Lac Dye in Shoe Upper Leather Dyeing." Leather and Footwear Journal 17, no. 2 (2017): 97–106. http://dx.doi.org/10.24264/lfj.17.2.4.

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13

Srivastava, Sanjay, Arnab Roy Chowdhury, and Sudarshan Maurya. "Antimicrobial Efficacy of Methylated Lac Dye, an Anthraquinone Derivative." Indian Journal of Microbiology 57, no. 4 (2017): 470–76. http://dx.doi.org/10.1007/s12088-017-0682-0.

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14

Zhang, Jun, Yan Juan Chen, and Meng Xue Xu. "Dyeing Properties of Gardenia Yellow, Lac Dye and Sodium Copper Chlorophyll for Wool." Advanced Materials Research 1048 (October 2014): 85–88. http://dx.doi.org/10.4028/www.scientific.net/amr.1048.85.

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The dyeing of wool fabrics with three different natural dyes, gardenia yellow, lac dye and sodium copper chlorophyll was studied, and the important dyeing parameters such as pH of dyebath, dyeing temperature, and dyeing time were discussed. The good results were achieved when the dyeing was conducted at 90 °C for 60 min in a weakly acidic medium for gardenia yellow and lac dye, and under a neutral condition for sodium copper chlorophyll. In addition, the dyed and mordanted wool fabrics had higher color depth values, darker shades, and better color fastness than the dyed and unmordanted samples

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15

Vaithanomsat, Pilanee, Waraporn Apiwatanapiwat, Oncheera Petchoy, and Jirawate Chedchant. "Production of Ligninolytic Enzymes by White-Rot FungusDatroniasp. KAPI0039 and Their Application for Reactive Dye Removal." International Journal of Chemical Engineering 2010 (2010): 1–6. http://dx.doi.org/10.1155/2010/162504.

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This study focused on decolorization of 2 reactive dyes; Reactive Blue 19 (RBBR) and Reactive Black 5 (RB5), by selected white-rot fungusDatroniasp. KAPI0039. The effects of reactive dye concentration, fungal inoculum size as well as pH were studied. Samples were periodically collected for the measurement of color unit, Laccase (Lac), Manganese Peroxidase (MnP), and Lignin Peroxidase (LiP) activity. Eighty-six percent of 1,000 mg L−1RBBR decolorization was achieved by 2% (w/v)Datroniasp. KAPI0039 at pH 5. The highest Lac activity (759.81 UL−1) was detected in the optimal condition. For RB5,Dat

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16

Bashir, Nawaz Haider, Huanhuan Chen, Shahzad Munir, et al. "Unraveling the Role of Lac Insects in Providing Natural Industrial Products." Insects 13, no. 12 (2022): 1117. http://dx.doi.org/10.3390/insects13121117.

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In the current era, products made from organic materials enjoy a privileged position because of their inherent safety. The eco-friendly properties of natural lac resins have increased their demand in many industries. It is secreted by sucking insects (Hemiptera, Kerriidae) and comprises three major components, viz., resin, dye, and wax. Lac insects are generally bivoltine in nature and are distributed in tropical and sub-tropical regions with complex multi-trophic habitats. Because of their sedentary habits, lac insects are more vulnerable to predators, parasitoids, squirrels, and rats, leadin

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17

Vikas, yadav, and Sitanshu Dr. "INSECT BIOLOGY, DISTRIBUTION, HOST PLANTS, NATURAL ENEMIES AND BIO-EFFICACY OF PESTICIDES AGAINST MAJOR PREDATORS OF LAC INSECT: A REVIEW." International Research Journal of Modernization in Engineering Technology and Science 5, no. 5 (2023): 7887–93. https://doi.org/10.5281/zenodo.7982628.

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Lac is the valuable Resin secrete by the lac insect. India is major lac producing country about 80% of the total world production. Lac insects are exploited for their products of commerce viz., Resin, dye, and wax. Cultivation of lac not only to provided the livelihood to lac growers it is also helps in conserving vast stretches of forests and biodiversity associated with lac insect complex in India. Lac flourish about 113 varieties of host plants Palas, kusum, ber and khair ,etc for completing their life cycle. During its life cycle the insects spends only few hours of active after that they

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18

Wei, Bo, Qiu Yuan Chen, Ren Cheng Tang, and Guo Qiang Chen. "Dyeing Properties of Lac Dyes for Wool, Silk and Nylon." Advanced Materials Research 233-235 (May 2011): 817–20. http://dx.doi.org/10.4028/www.scientific.net/amr.233-235.817.

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The dyeing properties of lac dyes for wool, silk and nylon fibers were investigated, and compared in terms of dependence of dye uptake on pH, dyeing rates, and building-up performance as well as color hue and color fastness of dyed fabrics. For all the three fibers, the uptake of lac dyes was greatly influenced by pH, indicating that the electrostatic interaction between lac dyes and fibers predominantly contributes to lac adsorption. The maximum adsorption wavelength of dyed fabrics shifted to a higher value with increasing application pH, indicating the existence of bathochromic effect. Lac

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19

SHARMA, S. C., S. K. PANDEY, and N. PRASAD. "Equipments for Manufacturing Lac Based Value Added Products." JOURNAL OF AGRISEARCH 9, no. 03 (2021): 249–54. http://dx.doi.org/10.21921/jas.v9i03.11010.

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Lac, a natural resin of insect origin, yields basically three useful materials i.e.resin, wax and dye and is an important source of livelihood for poor and tribal farmers in the lac growing regions. Lac growers harvest lac in form of lac stick and lac encrustations attached with sticks are then scraped which is known as sticklac. Sticklac contains impurities which need to be removed by converting sticklac in to seedlac through different unit operations under primary lac processing so that seedlac, a semi-refined product, can be further used in making lac based value added products i.e.shellac,

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20

VUTHIGANOND, Nattaya, Pisutsaran CHITICHOTPANYA, Monthon NAKPATHOM, and Rattanaphol MONGKHOLRATTANASIT. "Ecological dyeing of acrylic yarn with colorant derived from natural lac dye." Journal of Metals, Materials and Minerals 32, no. 4 (2022): 71–78. http://dx.doi.org/10.55713/jmmm.v32i4.1529.

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In recent years, the application of natural dyes in textile coloration has attracted significant study interest. In this current study, the bio-based dyeing of synthetic textile fiber, specifically acrylic yarn, with natural lac dye was investigated. The yarn was dyed using a meta-mordanting technique. The dyeing parameters, including temperature, time, pH of the dye bath, dye concentration, mordant type, and mordant concentration, were examined. Two eco-mordants, aluminium sulfate and ferrous sulfate, are compared against an eco-restricted copper sulfate in terms of color strength and fastnes

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21

Huang, Qinru, Zhao Wang, Liwei Zhao, et al. "Environmental Dyeing and Functionalization of Silk Fabrics with Natural Dye Extracted from Lac." Molecules 29, no. 10 (2024): 2358. http://dx.doi.org/10.3390/molecules29102358.

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Most traditional synthetic dyes and functional reagents used in silk fabrics are not biodegradable and lack green environmental protection. Natural dyes have attracted more and more attention because of their coloring, functionalization effects, and environmental benefits. In this study, natural dyes were extracted from lac and used for coloring and functionalization in silk fabrics without any other harmful dyes. The extraction conditions were studied and analyzed by the univariate method. The optimal extraction process was that the volume ratio of ethanol to water was 60:40 with a solid–liqu

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22

Pattanayak, Sutanuka, Sharmila Chakraborty, Md Masud Rahaman Mollick, et al. "In situ fluorescence of lac dye stabilized gold nanoparticles; DNA binding assay and toxicity study." New Journal of Chemistry 40, no. 8 (2016): 7121–31. http://dx.doi.org/10.1039/c6nj00087h.

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23

Mongkholrattanasit, Rattanaphol, Nattadon Rungruangkitkrai, Nitaya Tubtimthai, and Nuttanan Sasivatchutikool. "UV Protection Property of Colorant from Lac for Silk Fabric Dyeing by Cold Pad-Batch: The Influence of Metal Mordants Concentration." Advanced Materials Research 884-885 (January 2014): 257–60. http://dx.doi.org/10.4028/www.scientific.net/amr.884-885.257.

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In the present study, natural dye from lac dye and various metallic salts have been used to identify the proper dyeing condition for attaining high quality natural dyeing along with imparting UV protection property to the dyed silk fabric. Silk fabrics dyed with lac extract showed a light pink shade, while those dyed with alum and stannous chloride pinkish-red colour. Silk substrates dyed with CuSO4gave a purple red colour, while those dyed with FeSO4had a reddish-gray colour. The fastness properties ranged from fair to good, while washing fastness was poor level. The ultraviolet protection fa

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24

Oka, Hisao, Yuko Ito, Sadaji Yamada, et al. "Separation of lac dye components by high-speed counter-current chromatography." Journal of Chromatography A 813, no. 1 (1998): 71–77. http://dx.doi.org/10.1016/s0021-9673(98)00311-2.

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25

Liu, Li, Jun Zhang, and Ren-Cheng Tang. "Adsorption and functional properties of natural lac dye on chitosan fiber." Reactive and Functional Polymers 73, no. 11 (2013): 1559–66. http://dx.doi.org/10.1016/j.reactfunctpolym.2013.08.007.

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26

Divya, R. P. Singh, B. Baboo, and K. M. Prasad. "Evaluation of coloring efficacy of lac dye in comminuted meat product." Journal of Food Science and Technology 48, no. 3 (2011): 378–81. http://dx.doi.org/10.1007/s13197-011-0308-1.

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27

JANHOM, S. "Enhancement of lac dye adsorption on cotton fibres by poly(ethyleneimine)." Dyes and Pigments 63, no. 3 (2004): 231–37. http://dx.doi.org/10.1016/j.dyepig.2004.02.007.

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28

Sen, Arnab, Avijit Bhowal, and Siddhartha Datta. "Application of natural dye on polytrimethylene terephthalate fiber." Research Journal of Textile and Apparel 23, no. 1 (2019): 71–90. http://dx.doi.org/10.1108/rjta-06-2018-0041.

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PurposeThis paper aims to investigate the feasibility of developing an eco-friendly dyeing process for a regenerated polyester fiber (polytrimethylene terephthalate) using a natural dye (Lac) and bio-mordant.Design/methodology/approachThe effects of temperature, time, initial pH of dye bath, material to liquor ratio and mordant concentration on color strength of polytrimethylene terephthalate fiber dyed with Lac were examined. The results were compared using three bio-mordant (catechu, myrobalan and pomegranate) and three inorganic mordant (alum, ferrous sulfate and stannous chloride). Single

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29

Huy Chu, Phung Khac. "PURIFICATION AND CHARACTERIZATION OF LACCASE INVOLVED IN THE DECOLOURIZATION OF SYNTHETIC DYES AND 2,3,7,8-TCDD CONGENER DEGRADATION BY THE WHITE ROT FUNGUS ISOLATED FROM BAVI FOREST OF VIETNAM." Vietnam Journal of Science and Technology 55, no. 4C (2018): 180. http://dx.doi.org/10.15625/2525-2518/55/4c/12149.

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The fungal strain FBV40 was isolated from soil containing decayed wood in Ba Vi National Forest and capable of producing an extracellular laccase in the TSH1 medium. Two isozyme such as Lac1 and Lac2 were purified were estimated to be 55 and 60 kDa by SDS-PAGE. The optimum pH and temperature for the enzymatic activity of Lac1 were 3.0 and 60°C with ABTS using as the substrate. Kinetic constants Km and Vmax of Lac 1 were 0.3 µM and 200,000 µM/mins with ABTS as substrate. Cl-, SDS, and EDTA at any concentration (2 mM; 5 mM and 10 mM) strongly inhibited the activity of laccase. The enzyme was sta

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30

Mongkholrattanasit, Rattanaphol, Chintana Saiwan, Nattadon Rungruangkitkrai, et al. "Ecological dyeing of silk fabric with lac dye by using padding techniques." Journal of The Textile Institute 106, no. 10 (2014): 1106–14. http://dx.doi.org/10.1080/00405000.2014.976957.

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31

Hong, Zhang, Fang Guigan, Zheng Hua, and Li Kun. "Determination of Anthraquinone Content in Lac Dye Through Combined Spectrophotometry and HPCE." Procedia Engineering 18 (2011): 86–94. http://dx.doi.org/10.1016/j.proeng.2011.11.014.

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32

Kamel, M. M., Reda M. El-Shishtawy, B. M. Youssef, and H. Mashaly. "Ultrasonic assisted dyeing. IV. Dyeing of cationised cotton with lac natural dye." Dyes and Pigments 73, no. 3 (2007): 279–84. http://dx.doi.org/10.1016/j.dyepig.2005.12.010.

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Sangsubun, C., K. Kunmuak, P. Nutongkaew, N. Choosiri, V. Amornkitbamrung, and J. Waewsak. "Synthesis Dye Sensitized Solar Cells from Red Sandal Wood, Mangosteen and Lac." Energy Procedia 52 (2014): 567–71. http://dx.doi.org/10.1016/j.egypro.2014.07.111.

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34

Yuan, Yanlin, Chunyan Xie, Hua Liu, Xinyu Ming, Jialin Deng, and Sizhu Ren. "Construction a UiO-66-NH2@Lac@SA enzymatic reactor for dye decolorization." Desalination and Water Treatment 323 (July 2025): 101312. https://doi.org/10.1016/j.dwt.2025.101312.

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35

Mongkholrattanasit, Rattanaphol, Kittisak Ariyakuare, Tuernchai Limtrakool, et al. "An Evaluation of Silk Fabric Dyed with Lac Dye by Using Pad-Dry Technique - A Research on Effect of Mordant Concentration." Advanced Materials Research 821-822 (September 2013): 569–72. http://dx.doi.org/10.4028/www.scientific.net/amr.821-822.569.

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A natural dye extracted from lac was applied to a silk fabric by the use of pad-dry technique under different conditions. The dyeing properties were evaluated by measuring K/S and CIELAB values. In addition, the different fastness properties were evaluated. The effect of dyes at different mordant concentration levels with respect to their colour strength was also studied. Silk fabrics dyed with lac extract showed a light pink shade, while those dyed with alum and stannous chloride pinkish-red colour. Silk substrates dyed with CuSO4 gave a purple red colour, while those dyed with FeSO4 had a re

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36

Bashir, Nawaz Haider, Weiwei Wang, Xiaofei Ling, et al. "Characterization of Potential Molecular Markers in Lac Insect Kerria lacca (Kerr) Responsible for Lac Production." Insects 13, no. 6 (2022): 545. http://dx.doi.org/10.3390/insects13060545.

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Kerria lacca (Kerr) is an important lac insect extensively used in industrial products in the form of resin, wax and dye. The scarce knowledge on molecular markers for K. lacca is a barrier in elucidating genetic information. Our study identified a total of 16,921 single-nucleotide polymorphisms (SNPs), and 6231 insertions and deletions (InDels)—of which, intergenic variation accounted for 41.22% and 56.30%, and exonic variation accounted for 39.10% and 17.46%, of SNPs and InDels, respectively. Observation of SNPs suggested that nucleotide substitution frequency and transition to transversion

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37

Yu, Shuyu, Yibo Lu, Dandan Du, Rankun Wu, Xiang Ji, and Hao Li. "Improved Laccase Encapsulation in Copper-Doped Zeolitic Imidazolate Framework-8 for Reactive Black 5 Decolorization." Processes 11, no. 10 (2023): 2937. http://dx.doi.org/10.3390/pr11102937.

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As the largest group of synthetic dyes, azo dyes can pose various health and environmental risks due to their widespread use and challenging degradation. Laccases are efficient green biocatalysts for the degradation of organic pollutants. Herein, we report the in situ packaging of laccase in copper-doped zeolitic imidazolate framework-8 (ZIF-8) for the decolorization of reactive black 5, which is a model azo dye. The immobilization support (Cu5/mZIF-8) was obtained via lowering the precursor ratio of ZIF-8 and incorporating copper ions during the synthesis process. Cu5/mZIF-8 were found to be

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38

Mistry, N., T. J. Rockley, T. Reynolds, and C. Hopkins. "Development and validation of a symptom questionnaire for recording outcomes in adult lacrimal surgery." Rhinology journal 49, no. 5 (2011): 538–45. http://dx.doi.org/10.4193/rhino11.042.

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Background: A symptom-based questionnaire (the `Lac-Q` questionnaire) for adult patients undergoing lacrimal drainage surgery was developed. The questionnaire yields a numerical score that can be used to assess severity of symptoms. Methodology: In this study, the questionnaire was evaluated in 17 consecutive patients undergoing 22 dacryocystorhinostomy (DCR) procedures. The questionnaire was administered pre- and postoperatively. The pathology encountered at operation was recorded. The success of surgery was judged by patient satisfaction, endoscopic evaluation of DCR stomal patency, and obje

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KESORNSIT, SANHANUT, WARAYUTH SAJOMSANG, PATTARAPOND GONIL, and MONTRA CHAIRAT. "ADSORPTION KINETICS AND THERMODYNAMIC STUDIES OF LAC DYE ON POLYDOPAMINE-COATED SILK YARN." Cellulose Chemistry and Technology 54, no. 7-8 (2020): 799–810. http://dx.doi.org/10.35812/cellulosechemtechnol.2020.54.79.

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40

Tanaka, Toyohito. "Reproductive and neurobehavioural effects of lac dye administered in the diet to mice." Food Additives and Contaminants 14, no. 4 (1997): 373–80. http://dx.doi.org/10.1080/02652039709374540.

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41

Chingthongkham, Phawadol, Sirinart Chomean, Praew Suppajariyawat, and Chollanot Kaset. "Enhancement of bloody fingerprints on non-porous surfaces using Lac dye (Laccifer lacca)." Forensic Science International 307 (February 2020): 110119. http://dx.doi.org/10.1016/j.forsciint.2019.110119.

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42

Mahltig, Boris. "Overview on natural dyes and their IR-spectra - Part IV: Dyes originated from insects." Communications in Development and Assembling of Textile Products 5, no. 1 (2024): 107–19. http://dx.doi.org/10.25367/cdatp.2024.5.p107-119.

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Natural dyes were important in the past of textile industry. Due to actual trends towards bio-based and sustainable materials, also natural dyes might face a revival as part of a new sustainable clothing industry. According to this statement, the current paper gives an overview on selected natural dyes which are originated from insects. Altogether three different types of dyes are discussed gained from three different types of lice – cochineal, lac and kermes lice. Additional to an overview on dye properties and applications, a special view is done on the infrared spectra recorded from those d

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Sombatdee, Suthisa, and Sunan Saikrasun. "Structures and dyeing performances of polyethyleneimine-carbamate linked bamboo viscose fibers dyed with lac." Textile Research Journal 90, no. 2 (2019): 179–93. http://dx.doi.org/10.1177/0040517519862888.

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Polyethyleneimine (PEI)-immobilization of bamboo viscose fibers using carbamate linkages (ABF-PEI) was investigated in order to improve the dyeing properties of the fiber. Results from morphological observation, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy and thermogravimetric analysis clearly showed the successful carbamate binding of PEI at hydroxyl groups of cellulose fiber. The adsorption studies revealed that fast and efficient adsorption was achieved for ABF-PEI. Under optimum dyeing conditions, the amount of dye adsorbed on ABF-PEI at equilibrium (>100 m

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Sarikanon, Cholthicha, Sudakan Yabdee, Kasem Manarungwit, Chamlong Sarikanon, Rattanaphol Mongkholrattanasit, and Visan Jitkrajaisaeng. "Dyeing Studies of Cotton Towel Product with Natural Dyes and Effect of Cationization on Colour Characteristics." Applied Mechanics and Materials 848 (July 2016): 149–53. http://dx.doi.org/10.4028/www.scientific.net/amm.848.149.

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This research was concerned with dye extraction from lac, purple corn cob, golden shower tree seed pods, garcinia dulcis bark and dried mangosteen leaves and application on cotton towel product dyeing by the use of exhaustion process. Cotton towel was pretreated using cationizing agent (Sarcat PD) before dyeing. Cotton towel dyed in the solution extracting from lac showed pink shade. The sample dyed with purple corn cob and golden shower tree seed pods resulted in violetish-brown and dark brown shades, respectively. With garcinia dulcis bark and dried mangosteen leaves the colour was yellow an

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OKA, Hisao, Yuko ITO, Sadaji YAMADA, et al. "Identification of Lac Dye Components by Electrospray High Performance Liquid Chromatography-Tandem Mass Spectrometry." Journal of the Mass Spectrometry Society of Japan 46, no. 1 (1998): 63–68. http://dx.doi.org/10.5702/massspec.46.63.

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NISHIZAKI, Yuzo, Kyoko ISHIZUKI, Hiroshi AKIYAMA, Atsuko TADA, Naoki SUGIMOTO, and Kyoko SATO. "Preparation of a Ammonia-Treated Lac Dye and Structure Elucidation of Its Main Component." Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi) 57, no. 6 (2016): 193–200. http://dx.doi.org/10.3358/shokueishi.57.193.

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Chen, Kui, Kim-Chi Vo-Dinh, Fei Yan, Musundi B. Wabuyele, and Tuan Vo-Dinh. "Direct identification of alizarin and lac dye on painting fragments using surface-enhanced Raman scattering." Analytica Chimica Acta 569, no. 1-2 (2006): 234–37. http://dx.doi.org/10.1016/j.aca.2006.03.060.

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Singh, KJ, KI Singh, SM Haldhar, NO Singh, and N. Rustom. "Study on host preference of lac insect species existing in Manipur." International Journal of Agriculture, Environment and Biotechnology 14, no. 3 (2021): 387–91. https://doi.org/10.30954/0974-1712.03.2021.15.

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Lac insect, Kerria lacca kerr. is a boon of nature to mankind. Lac insect is of economic importance as it produces resin, wax and dye and its productivity, quality and quantity depends on the hosts on which it is cultivated. The investigation was carried out in the completely randomized block design with five hosts replicated three times to study the host preference of lac insect species existing in Manipur under greenhouse condition during katki season of 2019-20. The mean initial density of first instar nymph on hosts varied in different portions of hosts which range

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Chairat, Montra, and John B. Bremner. "Biosorption of lac dye by the red marine algaGracilaria tenuistipitata: biosorption kinetics, isotherms, and thermodynamic parameters." Coloration Technology 132, no. 6 (2016): 472–80. http://dx.doi.org/10.1111/cote.12241.

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Chimprasit, Aunlika, John B. Bremner, Sorasak Danworaphong, Warayuth Sajomsang, Pattarapond Gonil, and Montra Chairat. "A kinetic and thermodynamic study of lac dye adsorption on silk yarn coated with microcrystalline chitosan." Coloration Technology 135, no. 3 (2019): 224–33. http://dx.doi.org/10.1111/cote.12396.

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