• Proceedings of the Korean Society of Dyers and Finishers Conference
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• 2012.03a
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• pp.42-42
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• 2012

팥에 함유되어있는 색소와 관련된 연구 중에서는, 검정팥의 색소성분을 분리하여 delphinidin-3-glucoside(D-3-G)로 보고한 Sasanuma의 연구와 검정팥 껍질속에 포함된 안토시아닌의 함량을 평가한 Yoshida의 연구 결과 등이 있다. 본 연구에서는 검정팥 종피에서 색소를 추출하여, 적정 염색조건을 설정하였으며, 매염제별 색상변화 및 견뢰도를 측정하는 과정을 통해 염색 특성을 파악하여 새로운 천연염재로서의 활용 가능성을 진단하였을 뿐만 아니라 응용 연구를 위한 기초자료의 확보에 주안점을 두었다. pH에 따른 염색성에서는 견직물의 경우 pH 4에서 가장 염착량이 많았고, 면직물의 경우에는 주어진 범위내에서는 pH가 높을수록 염착량이 많았다. 염색온도와 시간에 따른 염색성은, 견직물의 경우, 염색온도 $80^{\circ}C$에서는 시간이 경과할수록 K/S 값이 크게 나타났으며, 면직물의 경우도 견직물과 비슷한 결과로 온도가 높아질수록 염색시간이 경과될수록 K/S 값이 크게 나타났다. 견직물에 대한 매염제 종류별 표면색의 변화에서는 Fe 매염포만 $YR{\rightarrow}Y$ 로 변화되었을 뿐 다른 매염제에서는 매염 후에도 색상 변화는 크지 않았다. 매염처리 전 견직물의 일광 견뢰도는 무매염이 4~6등급, Al 처리포는 4~5등급, Cu와 Sn은 3~4등급으로 나타났고 Fe는 2~3등급으로 가장 낮게 나타났으며, 세탁견뢰도에서는 무매염 2등급, 매염제 처리의 경우 2~3등급으로 나타났다. 무매염 면직물의 일광견뢰도는 1~2 등급, Fe 매염은 2~3등급, Cu 2등급 Al과 Sn은 1~2등급으로 매염처리에 의해 전혀 개선되지 않았으며, 세탁견뢰도의 경우 Cu매염이 4등급으로 양호하게 나타났으며 무매염, Al, Sn과 Fe는 3등급으로 나타났다.

• Proceedings of the Korean Society of Dyers and Finishers Conference
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• 2009.11a
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• pp.41-42
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• 2009

천연가죽 제조 공정에서 유해성 금속성 성분인 크롬이 전혀 함유되지 않은 비크롬 가죽을 제조한 후에 염색 공정에서 다색성 염료인 오배자와 소목을 각각 원료피 무게대비 5%를 사용하고, 매염제를 2~3% 사용하여 염료의 흡착성 증대, 음이온성 가지제 10~12%를 사용하여 가죽에 유연성 및 매염제의 표면 흡착성 증대를 통해서 천연염료에는 존재하지 않는 블랙색상의 가죽을 제조하였다.

• Journal of the Society of Cosmetic Scientists of Korea
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• v.36 no.1
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• pp.33-39
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• 2010

Recently. dyeing by harmless natural materials has received much attention due to the side-effects occurred from dyeing by synthetic dyes. In this study, we examined the effect of extracts of Pueraria thunbergiana (P. thunbergiana) roots, which are treated as natural products as well as agricultural wastes, on the hair dyeing by measuring dyeing interval, temperature, density changes, mordant and chromatic faction. The hair dyeing by the extracts significantly reduced hair damage and kept cuticle of hair softer than that by synthetic dyes. In addition, since a mordant is one of the necessary additives in dyeing, the role of a mordant was studied and concluded to be a supplementary substance based on the results that the hair dyeing by the extracts of P. thunbergiana roots alone was much darker than the others. Taken together, the data presented in this study suggest that the extracts of P. thunbergiana roots are is less damageable to hair and thus can be more safely applicable to hair dyes than that by synthetic dyes.

• Journal of the Korean Applied Science and Technology
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• v.29 no.3
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• pp.402-411
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• 2012

Natural Bokbunja is used as a material of oriental medicine which it obtains from Rubus or Raspberry. Natural Bokbunja Rubus has natural odor and taste, natural color, and pharmaceutical & chemical characteristics. This experiment tested antimicrobial experiment against microbe and dye experiment against fiber using natural Bokbunja extract. Some conclusions from this characteristics experiment were obtained as follow. The result of antimicrobial experiment could know that ATCC-001(staphylococcus aureus) does not show nearly from 72hrs after cultivation test and ATCC-002(aspergillus niger) shows to propagate continuously according to passage of time. Also, the result of dye experiment could know that cotton and silk using alum mordant($Al_2(SO_4)_3{\cdot}13-14H_2O$) against fiber shows in direction of light beige color. The result of instrument analysis ascertained inorganic components of K(221.100ppm), Mg(17.920ppm), Ca(5.129ppm), Na(2.940ppm), Si(0.638ppm) etc from Bokbunja with ICP/OES, and ascertained organic components of boric acic(1.711), silane(2.142), pyrazole(3.481), propyl isothiocyanate(2.565), furfurole(11.521) etc from Bokbunja with GC/MSD.

• Journal of Convergence for Information Technology
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• v.11 no.5
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• pp.199-205
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• 2021

This study was done to evaluate the dermatoxicity of zinc sulfate (ZnSO4) and the protective effect of Rubus parvifolius L. (RP) extract on cytotoxicity of ZnSO4, mordant in cultured SK-MEL-3 cells. For this study, it was done an antioxidative effect as DPPH-radical scavenging ability as well as the diminutive ability of total melanin with cell viability. ZnSO4 significantly decreased cell viability in dose-dependently, and it was mid-toxic. The ascorbic acid significantly increased cell viability damaged by ZnSO4-induced cytotoxicity. In the protective effect of RP extract on ZnSO4-induced cytotoxicity, RP extract significantly increased cell viability compared with ZnSO4-treated group, and also it showed both the DPPH-radical scavenging ability and the decrease of total amount of melanin. From these findings, the cytotoxicity of ZnSO4 is correlated with oxidative stress, and also RP extract effectively protected ZnSO4-induced cytotoxicity via antioxidative effect such as DPPH-radical scavenging ability with the whitening effect by the decrement of total amount of melanin. Conclusively, the natural ingredients like RP extract may be a useful agent for the improvement of antioxidative and whitening effects

• KSBB Journal
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• v.22 no.5
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• pp.271-277
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• 2007

Natural pigments have many applications like colouring agent, pigments, food additives, and antiseptics. At present, instead of synthetic pigments that have contributed to the development of industry, many kinds of natural pigments have been developed. The constituents of gardenia fruits, Gardenia jasminoides ELLIS, are traditionally known as herb medicine and natural dyes/pigments due to the customer is needs. The fruits produce yellow carotenoid pigments and iridoid compounds. The two main components in the yellow pigments are called crocin and crocetin. The extraction mode of yellow pigment from Gardenia is depended upon the extraction time, temperature, and volume of solvent. Red pigments or blue pigments formed from geniposide and amino acids have been reported a lot. Geniposide, the principal iridoid glucoside contained in gardenia fruit, was hydrolyzed to genipinic acid or genipin as a precursor for the pigment by enzymatic or chemical reaction. These red or blue pigments prepared with materials hydrolyzed of geniposide and amino acid and had properties governed by the electrostatic character of the amino acid. The pigments showed good stability to heat and pH but were gradually bleached by light while the other natural pigments are unstable in light, heat, acid, and base solution. The safety of the pigments was considered to be of little virulences in comparison to synthetic pigments.

• Journal of the Korean Society of Costume
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• v.49
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• pp.49-63
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• 1999

This research utilized the Energy Dispersive X-ray Spectroscopy(EDS) and the Inductively Coupled Plasma Mass Spectrometry in the analysis of chemical elements present among the textiles exhumed from Kupori Hwasung-kun Kyunggi-do. The two research objectives were: first to examine the elements present and their percent presence in Kupori samples: second to investigate whether the elements are part of mordant substances which could have been used when dyeing the KUpori textiles in the past. To meet such research purposes standard silk fabric was dyed with Sophorajaponica using alum and iron mordants. For alum mordant unpurified general alum and potassium aluminum sulfate(AlK(SO4)2). iron sulfate(FeSO4·7H2O) were used, From the results of EDS and ICP-Mass analysis the following conclusions were drawn. 1 According to the EDS analysis 9 elements Ca, S, Al, Si, K, Fe, P, Mg and Na were detected. 2. ICP-Mass result of the mordant chemicas showed high amount of A, Al and k present in alum mordants and S and Fe present in iron mordants. 3. Comparison of the ICP-Mass results of the mordant chemicals and those of the standard dyed samples suggested that the amount presence of Al and Fe is a strong indication of the usage of alum and iron mordants respecticely in an unknown dyed textile. 4, In the washed Kupori textiles Fe showed a relatively higher rate of presence in the samples Therefore it can be conjectured that those Kupori textiles were dyed with iron mordant based on the result of the above number 3. 5. It is probable that the other elements detected from the Kupori samples were incorporated into the textiles as part of the soil debris produced from the degradation of the dead within the coffin or the earth debris. They can also be part of the inorganic compounds inherent in the silk textiles themselves before dyed. 6. Among the elements it is likely that Ca which showed a high degree of presence among the unwashed samples was part of the inorganic compound inferent in the silk textiles.