• Applied Microscopy
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• 제44권2호
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• pp.53-60
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• 2014

In the present study, we investigated the effects of Polygonum tinctoria Niram (PTN) on atopic dermatitis (AD) in BALB/c mice induced by 2,4-dinitrochlorobenzene (DNCB). They were divided into four groups; Control, DNCB, DNCB+1%PTN (1% PTN extract) and DNCB+5%PTN (5% PTN extract), for evaluating the change of appearance of skin surface, skin hydration, thickness of epidermis and mast cell numbers during 4 weeks. PTN suppressed symptoms of AD in appearance of skin and increased skin hydration for DNCB+1%PTN and DNCB+5%PTN. Treatment with PTN significantly decreased the levels of eosinophils. In histopathological examination, DNCB+1%PTN and DNCB+5%PTN significantly reduced the thickness of epidermis and number of mast cell in dermis. These results suggested that the PTN improved symptoms of AD in BALB/c mice.

• 대한한의학방제학회지
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• 제22권1호
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• pp.141-150
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• 2014

Objectives : The purpose of this study was to investigate the effects of Polygonum tinctoria Niram(PTN) on atopic dermatitis(AD) in hairless mice induced by 2,4-dinitrochlorobenzene(DNCB). Method : They were divided into four group, Nor, Con, 1X and 5X, for evaluating the change of appearance of skin surface, skin hydration, thickness of epidermis and mast cell numbers during 30 days. Results : PTN suppressed symptoms of AD in appearance of skin and increased skin hydration for 1X and 5X. In histopathological examination, 1X and 5X significantly reduced the thickness of epidermis and number of mast cell in dermis. These results suggested that the PTN improved the AD-like symptoms of hairless Mice.

• 복식문화연구
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• 제31권2호
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• pp.161-172
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• 2023

In this study, natural dyeing using Polygonum tinctoria was performed with linen, ramie, and hemp, which are biodegradable cellulose fibers, considering environmental aspects. In particular, the impacts of alkali NaOH and reducing agent Na₂S₂O₄ were examined, and the possibilities of minimizing the use and reusing the dye were explored. The surface dye concentrations were found to be in the following order: hemp>linen>ramie. With the increase in all additives, the L^* value decreased, and the ⊿E and K/S values increased gradually. When Na₂S₂O₄ was 1g/L, the surface color of the dye appeared uniformly from the NaOH concentration of 0.4g/L (pH 10.84). When NaOH was 0.4g/L, the K/S values of linen and ramie increased rapidly after 0.4g/L of Na₂S₂O₄, and hemp maintained a stable color from 0.6g/L of Na₂S₂O₄. With the increase in the dye concentration from 1 to 6g/L, all the fibers were dyed uniformly. The K/S value increased or higher doubled upon repeated dyeing six times for 5 min than when dyed only once for 30 min. Therefore, the linen, ramie, and hemp fibers dyed repeatedly exhibited good washing, rubbing, and colorfastness to perspiration, which was rated between 4 and 4-5, and that to light was rated as 5. Moreover, no discoloration due to sunlight was observed. Finally, linen exhibited a bacterial reduction of 99.9%, thereby indicating its excellent antibacterial property.

• 복식문화연구
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• 제31권2호
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• pp.248-261
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• 2023

The conditions for minimizing dyes and additives when dyeing cellulose fibers such as linen, ramie, and hemp fabrics were obtained using glucose, an organic reducing agent. Dyeability and colorfastness were measured through repeated dyeing. The overall surface dyeing concentration followed the linen>hemp>ramie order, and most of the colors were in the range of PB (PurpleBlue). As the glucose concentration increased, the blue series was strengthened, and the color was dark and clear. It was determined that glucose the concentration of 4g/L was appropriate for minimizing the amount of dye. When the dyeing temperature was 30℃, the surface dyeing concentration was the highest, and the color was dark and clear. Although the dyeing concentration increased as NaOH concentration increased, 3g/L (pH 12.37) was considered appropriate for the minimum NaOH concentration, which becomes gradual after the dyeing concentration increased rapidly. It was found that the surface dyeing concentration, when repeated six times for 5 min, was better than that of dyeing once for 30 min. Washing, rubbing, and perspiration colorfastness were all found to be excellent in grades 4-4-5, and colorfastness to light was excellent in grades 5 of linen and hemp and grade 4 of ramie.

• 한국잠사곤충학회지
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• 제47권2호
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• pp.88-92
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• 2005

쪽잎 300g를 2.5l물에 색소를 울어 내기 위하여 사용한 초산 및 황산은 제조량에는 차이는 없었으며, 공기 공급의 경우도 30분 이후에는 큰 차이가 없었다. 쪽잎 300g에 초산(5 ml/2.5l과 암모니아수(10ml/2.5l)을 넣는 경우, 염료생산량은 1.631 g으로 가장 높았다. 전통염료와 개선 (순수) 쪽 색소 제조 방법으로 제조한 쪽이 성분과 분자량이 같은 수준 이었다. 순수 색소의 제조 쪽은 전통 염색 보다 소취성이 높았고, 정균감소율은 황색포상구균과 폐렴균이 26.3%와 19.1%이었다.

• 한국의류학회지
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• 제32권8호
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• pp.1286-1298
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• 2008

This study was attempted to examine the indigo dyeing technique in the latter Joseon Dynasty, and to find diachronic specifics in the indigo dyeing method from 17C to 19C. The results are as follows: First, There were 2 kinds of indigo species-Yoram(Polygonum tinctorium Lour.) and Sungram(Isatis tinctoria L.)-in the latter Joseon Dynasty. Dangram was preferred in particular among Yoram species because of its high dyeing efficiency. Sungram was mainly used for making Jeon(indigo sediment). Second, Yoram cultivation took the following order: Sowing in April${\rightarrow}$planting out in June${\rightarrow}$harvesting leaves in August${\rightarrow}$collecting seeds in September. Sungram had more harvesting times and wider harvesting period than Yoram. Third, all indigo dyeing methods were grouped into two categories, one was temporary dyeing method, the other was permanent dyeing method. Mixture dyeing of the boiled and the raw, raw leaves dyeing, and fermentation dyeing belonged to the temporary dyeing. Jeon dyeing and Gaeogi dyeing belonged to the permanent dyeing. Finally, diachronic specifics from 17C to 19C were as follows: Decline in the mixture dyeing of the boiled and the raw, development in the raw leaves dyeing, continuance of the fermentation dyeing, and naturalization of Jeon dyeing technique.

• 동의생리병리학회지
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• 제17권3호
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• pp.605-610
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• 2003

인삼, 호장근, 상산 등에서 분리한 성분들이 HL60, HL-60, Jurkat, Molt-4에 대한 억제작용이 있는 것으로 조사되었고, 익모초의 Leonunrine, 대청엽의 Indirubin, 천문동의 Aspargus polysaccharideA.B.C.D, 백합의 Colchicnamile, 익모초의 Lenunrine, 산두근, 자초근 추출물이 여러유형의 백혈병 환자에 대한 백혈병 억제효과가 있는 것으로 조사되었으며, mouse의 P388, L1210, L615, L120, S-180 등에 항 백혈병 효과가 있는 것으로는 완화, 로회, 원지, 오수유, 파두, 뇌공등, 석산, 백출, 단삼, 산약, 목단피, 청대, 감초, 당귀에서 분리한 성분들이 있으며 백굴채, 마전자, 가시오가피, 천초 추출물들이 동물실험에서 항암작용이 있는 것으로 조사되었다. 또 천연물에서 분리한 성분이 항백혈병 작용이 있는것으로는 ginsenoside Ro, ginseonoside Rh2, Emodin, Yuanhuacine, Aleemodin, phorbocdiester, Triptolide, Homolycorine, Atractylol, Colchicnamile, Paeonol, 당귀다당체, Aspargus polysaccharideABCD, Indirubin, Leonunrine, Acinosohic acid, Trichosanthin, G2 132, Schizandrin, allicin, Indirubin, cmdiumlactone chuanxiongol, 18A glycyrrhetic acid, Kansuiphorin A, 13 oxyingenol Kansuiphorin B 등이 조사되었고, 추출물이 항 백혈병 작용이 있는 것으로는 원지, 오수유, 백굴채, 대황, 산두근, 마전자, 가시오가피, 천초 등이 조사되었다.