• Journal of the Korean Wood Science and Technology
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• 제50권1호
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• pp.31-45
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• 2022

After manufacturing the natural dyed actual size Hanji using 11 kinds of plant natural dyeing materials and 2 kinds of animal natural dyeing materials, the color characteristics and color change and color fastness after post-mordanting were compared and discussed. The hues of 13 types of natural dyed Hanji were black, PB, and RP, each with 1 type, YP with 3 types, and Y with 7 types. Among the natural dyeing materials, Chinese ink, indigo and Lac showed high color yield and color difference, and violet-root cromwell and gardenia seeds showed low color yield. The color fastness of Hanji dyed with turpentine diluted Ottchil, Pagoda tree seeds, Chinese ink and indigo was excellent, while that of gardenia seeds and violet-root cromwell were very poor. After post-mordanting of natural dyed Hanji with Al, Cu, and Fe mordants, the hue changes were show up the Alnus firma, clove, lac and cochineal. In addition, the color difference was very diverse and was overall the most biggest due to Fe mordant. After 72 hr. of UV irradiation on post-mordanting natural dyed Hanji, hue change was observed in 3 types and color fastness was improved in 8 types by post-mordanting. The Hue and color fastness are significantly different depending on the type of natural dying materials and post-mordants. Therefore, when dyeing Hanji with natural dyes, it is necessary to dye with sufficient knowledges and informations about the desired color and fastness.

• Journal of Plant Biotechnology
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• 제5권1호
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• pp.19-23
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• 2003

The Ac (activator) which is one of the well-characterized transposable elements from maize was examined for its transposition possibility to the heterologous plant (P.nigra x maximowiczii) genome via Agrobacterium tumefacience (LBA4404) mediated transformation system. A number of transgenic plants were successfully recovered after 30 weeks by amount reduction from 50 to 15 g/$m\ell$ kanamycin for in vitro selection to minimize phytotoxic effects and to increase callus growth and regeneration efficiency. Among transgenic plants, 62 out of 106 transgenic poplars (58.5%) showed abnormal phenotypes such as severe serrated leaves and light leaf coloration. Indigo staining with X-gluc proved indirectly the restoration of Gus enzyme function and the presence of Ac in poplar genome by PCR. Southern analysis indicated the transposition and existence of Ac element in poplar genomes. In this research, an Agrobacterium-mediated transformation system in poplar species was developed and identified that Ac derived from maize can be excised and trans posed into other poplar genomes.

• 한국환경복원기술학회지
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• 제1권1호
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• pp.141-150
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• 1998

This study was conducted to find out the possibility of seeding of Zoysia japonica and woody plants for the revegetation of rock-exposed-cutslopes by Natural Topsoil Restoration Methods (NTRM). The 5cm thick layer of artificial soil was attached at rock-exposed cutslopes for the growth of Zoysia japonica and native woody plants by NTRM. The main results were summarized as follows. 1. Artificial soil attached at rock-exposed-slopes by NTRM was not eroded until recovered by Zoysia japonica and native woody plants. It shows extremely low soil erodibility. 2. One year later after seeding, woody plants show 100% ground coverage. But, in early stage, they grew more quickly at northwest slopes than at southeast slopes. 3. In seeding of Zoysia japonica, it grew more quickly at southeast slopes than at northwest slopes. Also, it grew better at lower part of the slopes than at middle part of the slopes. 4. After one year from seeding, the height of Lespedeza cyrtobotrya and Indigo/era pseudo-tinctoria were longer than any other plants. The next were Albizzia julibrissin, Lespedeza cuneata and wild flowers. The tree height of Rhus chinensis shows 28cm length, so it has enough possibility to be used for roadside revegetation works. 5. Lespedeza cyrtobotrya and Indigo/era pseudo-tinctoria show different importance values according to slope aspect. But, they show tendency to outweigh the other plants at all slope-aspects. 6. Most of the plants seeded by NTRM were germinated well and they covered rock-exposed-slopes so quickly and effectively. Thus it leads to conclusion that the revegetation methods used in this experiment was a very effective methods to recover rock-exposed-slopes by seeding of zoysia japonica and native woody plants.

• 한국의류학회지
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• 제24권5호
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• pp.619-627
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• 2000

Historically, dyed textiles were symbols of status and, because of their expense, reserved only for people of wealth and specalist, Early dye sources probably included plant, animal and mineral extracts. As synthetic dyes have been developed, beginning with synthetic indigo in 1897, reliance on natural dye sources diminished. But renewed interest in natural dyes is fueled by a pro-environment consumer aware of the ecological liabilities of the dye industry. Han Jee was imported from China where it was influenced to period of the three kingdoms(Silla, Baekje, Kokuryo). After that, Han Jee was used for paper in old Korea for long thime before paper was came with civilization. In this paper, dyeing of Han Jee with loess were investigated according to dyeing temperature, dyeing time, loess concentration, and effects of additives. As a reuslts, λmax of Han Jee dyed by loess was 710nm. ΔE values of Han Jee increased by loess concentration, dyeing time, dyeing temperature. Dyeing with additives treatment increased dyeability. Especially, Han Jee treated with aluminium acetate shows the largest dyeability of the Han Jee. The Han Jee dyed loess had very good lightfastness.

• 한국생활과학회지
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• 제17권3호
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• pp.501-509
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• 2008

This research intends to help local small fashion industry to outgrow its limitation, preserving and developing environment-friendly dyeing tradition in Jeju renowned for persimmon juice dyeing. The study, then, aims to develop eco-friendly golf-wear designs, with maximizing advantages of natural dyeing (with persimmon juice, indigo plant, gallnut, cochineal, turmeric, and loess) such as rot-proofness, bacteria-proofness, stench-proofness and block of ultraviolet rays. The results are as follows: first, natural fabrics such as muslin(cotton 100%), linen(linen 100%) and spandex(mixed cotton 98%, polyurethane 2%) were developed into eco-friendly ones colored with various natural dye sources. Second, four kinds of golf-wear design were developed to stand out golf wear's natural image, focused on classic, neo-minimal style. The characteristic details and design elements of sportswear were added to basic golf wear design. Therefore, it is hopeful that those designs of naturally dyed golf wear for women could be utilized for other various purposes in the future.

• 한국자원식물학회지
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• 제18권3호
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• pp.417-423
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• 2005

쪽 생즙액의 염색조건에 따른 견직물의 염색성을 조사하기 위해 염액온도, 염색시간, 염액농도 염액의 pH, 매염제를 달리하여 견직물을 염색하였다. 염액의 온도에 따른 견직물의 표면색은 온도가 낮을수록 b값이 작아져 $-5^{\circ}C$와 상온에서는 녹색(G) 계열로, $40^{\circ}C$ 이상에서는 녹황색(GY) 계열로 발색되었으며, 염착농도는 온도가 높을수록 높았다. 염색시간은 표면색에 영향을 미치지 않았으나 염색시간이 길수록 염착농도는 증가하였다. 염액농도를 $1\%,\;2\%,\;3\%,\;4\%$로 조정하여 견직물을 염색했을 때는 청록색(BG) 계열로 발색되었으나 $5\%$에서는 B계열로 발색되었고, 염착농도는 염액의 농도가 높을수록 증가하였다. 염액의 pH에 따른 견직물의 표면색은 pH 7이하에서는 G계열을, pH 8에서는 녹황색(GY)으로, pH 9에서는 황적색(YR) 계열을 나타냈다. 염착농도는 pH가 높을수록 낮아졌다. 매염처리는 견직물의 표면색에 영향을 미쳤으며, 염착농도도 증가시켰다.

• 복식
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• 제58권3호
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• pp.79-92
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• 2008

The purpose of this study is to develop knitwear design expressed not also Green but also LOHAS using natural yarns(wool and cotton) dyed with various natural sources(sappanwood, indigo plant, turmeric, cochineal, coffee, gallnut, and persimmon juice). This researcher tried to suggest solution scheme through the development of knitwear designs to break from the cottage industry and the limitation of design in Jeju and to preserve of traditional dye with persimmon juice simultaneously. Knitting is the formation of a fabric by the interlooping of one or more sets of yarns with hand knitting or industrial knitting. In hand-knitting, the two fundamental stitches are described as knit depending on the direction of the loop formation, front to back or back to front. In machine-knitting, the direction of loop formation is fixed, unless the stitch is mechanically transferred from front to back needle bed or vice versa. Industrial knitting technology can be divided into two main areas - weft knitting and warp knitting. Each has a different principle of construction. The majority of knitted fabrics for clothing are weft-knitted, and so this study is used weft-knitting and hand knitting technology. To achieve this purpose, researcher tried to present a lot of knitwear designs using yarns dyed with various natural sources focusing on Modern & Sophisticated Image and Elegance & Romantic Image to satisfy adult and missy consumer needs.

• 한국염색가공학회지
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• 제23권2호
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• pp.90-99
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• 2011

The aim of this study is to develope eco-printing method using natural pigments and chitosan as a natural binder. Three chitosans with different molecular weights were employed to find appropriate conditions including chitosan concentration and pigment/binder ratio. Dye uptake, color and fastnesses of the printed fabrics were evaluated to find optimum conditions within the range of experiments carried out in this study. The effectiveness of chitosan as a printing binder was examined in comparison with color, dye uptake, and fastnesses of conventional synthetic binder and guar gum. It was found that chitosans with low or medium molecular weight were appropriate. Using low molecular weight chitosan, optimum concentrations were 1.7% for charcoal, madder and chlorophyll, whereas 2.2% for ocher, yellow soil, indigo and cochineal. Regardless of molecular weight and concentration of chitosan, the color fastnesess of fabrics printed with mineral pigments were superior to those of the fabrics printed with plant and animal pigments. As pigment/chitosan ratio became higher, rubbing fastness was decreased by 1-3 grade. The colorfastness of printed fabric with chitosan binder was similar to that with synthetic binder, which was higher than that with guar gum.

• 한국자원식물학회지
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• 제29권1호
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• pp.32-38
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• 2016

쪽 종자의 이용성 향상을 위한 기초 자료 확보 측면에서 쪽 종자의 일반성분, 지방산, 무기물, 아미노산 함량 분석과 쪽 종자의 메탄올 추출물을 이용하여 생리활성 효과를 조사하였다. 쪽 종자의 총 열량은 348.00 kcal/100 g이었으며, 일반성분은 수분 7.85%, 탄수화물 67.90%, 조단백 10.10%, 조지방 4.00%, 조회분 10.15%로 구성되어 있었다. 포화지방산의 총량은 0.905 g/100 g이었고, 불포화지방산의 총량은 2.717 g/100 g이었다. 쪽 종자 100 g에 함유된 무기질은 K (549.5 ㎎), Mg (264.4 ㎎), Ca(216.2 ㎎), Fe (12.1 ㎎), Zn (3.0 ㎎) 순으로 많았다. 구성아미노산은 총 15종이 검출되었으며, 이 중 alanine (1,432.6 ㎎/100 g)과 glutamic acid (1,088.8 ㎎/100 g)의 함량이 많았다. 총 폴리페놀 함량은 11.08 ㎎/L였고, 총 플라보노이드 함량은 3.56 ㎎/L였다. 쪽 종자 메탄올 추출물의 생리활성 중 radical scavenging activity는 1,000 ㎎/L일 때 DPPH radical 소거능 86.74%, ABTS radical 소거능 61.74%로 나타났다.

• 한국자원식물학회지
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• 제25권5호
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• pp.543-549
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• 2012

대청의 이용성 향상을 위한 자료 확보 측면에서 식물체 부위 및 추출 용매별에 따른 항산화 효소 활성 및 항균효과를 조사하였다. APX(Ascorbate Peroxidase) 활성은 줄기의 에탄올 추출물, 잎의 메탄올 추출물, 잎의 증류수의 추출물 순으로 높아 각각 1601.7, 1133.7 및 524.3(Unit/mg protein)을 나타냈다. CAT(Catalase) 활성은 꽃의 에탄올 추출물, 잎의 메탄올 추출물, 꽃의 증류수 추출물 순으로 높았는데, 각각 177.1, 120.8 및 55.4(Unit/mg protein)를 나타냈다. POD(Ascorbate Peroxidase) 활성은 꽃의 에탄올 추출물, 꽃의 메탄올 추출물, 줄기의 증류수 추출물 순으로 높았으며, 각각 27.1, 14.6 및 10.4(Unit/mg protein)를 나타냈다. SOD(superoxide dismutase) 활성은 뿌리의 증류수 추출물, 꽃의 메탄올 추출물, 뿌리의 에탄올 추출물 순으로 높았으며, 각각 90.8, 80.1, 75.5%를 나타냈다. 대청의 꽃 추출물은 Vibrio parahaemolyticus에 대해서만, 뿌리는 Staphy lococcus aureus에 대해서만, 줄기 추출물은 Bacillus subtilis, Escherichia coli, Staphy lococcus aureus에 대해서만 용매에 관계없이 항균활성을 나타냈다. 특히 대청 잎의 증류수 추출물은 Bacillus subtilis, Escherichia coli에 대해 높은 항균활성을 나타내어 저해환 직경이 각각 30.0 및 24.0 mm이었다. 이와 같은 결과는 약용식물로서 대청의 가치가 높음을 시사해 주었다.