• Title/Summary/Keyword: Dyeing method

Search Result 431, Processing Time 0.025 seconds

Utilization of Bamboo Leaves as a New Resource of Natural Green Colorants

  • Shin, Younsook;Cho, Arang;Yoo, Dong Il
    • Textile Coloration and Finishing
    • /
    • v.24 no.4
    • /
    • pp.247-252
    • /
    • 2012
  • The objective of this study was to find an appropriate method and process for protecting the green color in bamboo leaves and subsequent extraction of the green colorants, chlorophyll. Various inorganic salts including cupric sulfate, ferric sulfate, and zinc chloride were employed as green color protectors. Accordingly, the effects of metal salts and treatment conditions on color protection were investigated to find appropriate protector and conditions. And also, the efficacy of bamboo colorants as a natural green dye was evaluated through dyeing and colorfastness tests. Antimicrobial activity of dyed fabrics was measured by shake flask method in terms of bacterial reduction rate using Staphylococcus aureus(ATCC 6538). On the basis of experimental results for stabilizing bamboo leaves colorants, it was confirmed that Cu was the most appropriate metal type considering dye uptake, photostability and light fastness, and its optimum concentration was 0.025%. After the stabilization, the colorants were extracted efficiently at NaOH aqueous solution of 1.00%. It was concluded that bamboo leave has a high potentiality as new resources to produce a natural green dye with antimicrobial functionality.

Facile Synthesis and Characterization of GO/ZnS Nanocomposite with Highly Efficient Photocatalytic Activity

  • Li, Lingwei;Xue, Shaolin;Xie, Pei;Feng, Hange;Hou, Xin;Liu, Zhiyuan;Xu, Zhuoting;Zou, Rujia
    • Electronic Materials Letters
    • /
    • v.14 no.6
    • /
    • pp.739-748
    • /
    • 2018
  • ZnS nanowalls, microspheres and rice-shaped nanoparticles have been successfully grown on graphene oxide (GO) sheets by the hydrothermal method. The morphologies, structures, chemical compositions and optical properties of the as-synthesized GO/ZnS have been characterized by X-ray power diffraction, energy dispersive spectrometer, scanning electron microscope, Raman spectra, photoluminescence spectroscopy and ultraviolet-visible absorption spectroscopy. It was found that the concentration of CTAB and the reaction temperature were important in the formation of GO/ZnS microstructures. The photocatalytic activity of the as-synthesized GO/ZnS was investigated through the photocatalytic degradation of textile dyeing waste. Results showed that the catalytic activity of the GO/ZnS porous spheres to methyl orange and methylene blue is higher than those of other samples. The degradation rates of methyl orange and methylene blue by porous spheres in 50 min were 97.6 and 97.1%, respectively. This is mainly attributed to the large specific surface area of GO/ZnS porous spheres and high separation efficiency between photogenerated electron and hole pairs.

Study on the Surface Design Used in S.F.A.A. Collection (SFAA 컬렉션에 활용된 서페이스 디자인연구)

  • 김주희;금기숙
    • Journal of the Korean Society of Costume
    • /
    • v.52 no.1
    • /
    • pp.129-143
    • /
    • 2002
  • Patterns are something that comes out of necessity in human life, which is closely associated with it. Thus come the SFAA (Seoul Fashion Artists Association) collection which uses patterns varying in form, color, way of expression and material. For this research, I first categorized the patterns the SFAA designers used into: natural patterns, symmetric patterns, traditional patterns, stripe, plaid, dot and abstract patterns. As a result of the process. the designers most favored the natural patterns and symmetric patterns, and dot patterns were rarely used. The designer who most favored patterns in general was Sul Yun-hyoung, and the designer Kim Chul-ung rarely favored the surface effect. The seven kinds of patterns naturally differ according to the designer. as Park Hang-chi liked to use the plaid patterns along with yam dyeing material, whereas Jin Teok expressed stripe patterns using the yarn dyeing fabric. Natural patters were presented in a bizarre way with Lie Sang-bong. who took the motives appearing in Eastern ceramic and paintings into the clothes, using the print method. The symmetric patterns, which the SFAA designers most preferred. was used evenly among designers like Chang Kwang-hyo, Gee Choon-hee. Rubina, and Haneza. In contrast. Lie Sang-bong. who used abstract patterns that do not give out meaning of the actual form of the pattern. rarely used symmetric patterns. The dot patterns were most often used by Park Youn-soo. and traditional patterns were overwhelmingly chosen by Sul Yun-hyoung. Secondly. in expressing the colors, SFAA designers were much more likely to choose achromatic colors. not choosing to show off colors. This is especially apparent in works by Haneza and Lie Sang-bong. In the SFAA collections, numerous methods were used to create. For instance, Sul Yun-hyoung used the oriental embroidery method. and Rubina and Lie Sang-bong used many unique dying methods. In terms of materials, Sul Yun-hyoung preferred silk. due to her methods, and Lie Sang-bong was one of the designers that used a number of different materials such as vinyl. Jacques Mueclier of the Paris Clothes Association in France, who was invited to SFAA collection once, remarked. "While the choice of material and the actual sewing done were excellent, there lacked much difference among the designers, as most of them choose flowing silhouette In terms of composition," which is all too correct. In addition, there were cases in the collection where the inherent feelings of cultural artifacts was expressed without alteration. Summing up, the research aimed to analyze the surface expression methods, forms and color of SFAA designs. and I hope that it can open up ways for new projects in the future.he future.

The Novel Label Free Staining Algorithm in Digital Pathology (차세대 디지털 병리를 위한 Label Free 디지털염색 알고리즘 비교 연구)

  • Seok-Min Hwang;Yeun-Woo Jung;Dong-Bum Kim;Seung Ah Lee;Nam Hoon Cho;Jong-Ha Lee
    • Journal of the Institute of Convergence Signal Processing
    • /
    • v.24 no.1
    • /
    • pp.76-81
    • /
    • 2023
  • To distinguish cancer cells from normal cells, H&E (Hematoxylin & Eosin) staining is required. Pathological staining requires a lot of money and time. Recently, a digital dyeing method has been introduced to reduce such cost and time. In this paper, we propose a novel digital pathology algorithms. The first algorithm is the Pair method. This method learns the dyed phase image and unstained amplitude image taken by FPM (Fourier Ptychographic Microscopy) and converts it into a dyed amplitude image. The second algorithm is the unpair method. This method use the stained and unstained fluorescence microscopic images for modeling. In this study, digital staining was performed using a generative adversarial network (GAN). From the experimental results, we noticed that both the pair and unpair algorithms shows the excellent performance.

A Study on the Sociocultural Attitude toward Appearance and Appearance-management Behavior - Focused on Females in Their Twenties - (외모에 대한 사회.문화적 태도와 외모관리행동에 대한 연구 - 20대 여성을 중심으로 -)

  • 김선희
    • Journal of the Korean Home Economics Association
    • /
    • v.41 no.5
    • /
    • pp.99-108
    • /
    • 2003
  • The Purpose of. this study was to investigate the relationship between sociocultural attitude toward appearance and appearance-management behavior. The method of the study was survey research by using questionnaires. Subjects were 323 females in their twenties. Statistical analysis methods were frequency, percentage, factor analysis, one-way ANOVA, X²-test, and Duncan's multiple range test. The results of the study were as follows. As for appearance-management behaviors of females in their twenties, they experienced in diet, plastic surgery, skin care, make up, and hair dyeing. There were significant differences in body satisfaction between groups according to body image distortion. Respondents were barely satisfied with their body, and the group with high body image distortion showed low body satisfaction. Sociocultural attitude toward appearance factors was analyzed into 2 factors, iternalization of mass-media and social recognition toward appearance, which respondents considered importantly. A significant difference was found in sociocultural attitude toward appearance and appearance management behavior. The group with positive sociocultural attitude toward appearance was analyzed to show high appearance concern and many experiences of appearance management behaviors.

Absorption Properties of Chitosan and Nano Silver Composite knit Fabrics Dyed with Chrysanthemum indicum Linn Extract (감국 추출액으로 염색한 키토산/나노실버 복합편성물의 염착특성)

  • Chu, Young-Ju
    • Fashion & Textile Research Journal
    • /
    • v.12 no.6
    • /
    • pp.837-842
    • /
    • 2010
  • This study examines the dyeability, light fastness, washing fastness, and antibacterial activity of chitosan and nano silver composite knit fabrics dyed with extracted solution from Chrysanthemum Indicum Linn. The results show that ${\Delta}E$ values of chitosan and nano silver composite knit fabrics were higher than cotton 100% knit fabrics in dyed condition with extracted solution from Chrysanthemum Indicum Linn, and mordant treatments influenced the chrominance change. Chrysanthemum indicum Linn confirmed that this could be a polygenetic colors. ${\Delta}E$ values of post-mordant treatments knit fabrics were higher than pre-mordant treatments knit fabrics in dyed condition with extracted solution from Chrysanthemum Indicum Linn., and mordant treatments method influenced the chrominance change. The dyeability of chitosan and nano silver composite knit fabrics was increased by mordant treatment. The fastness of the chitosan and nano silver composite knit fabrics was better than cotton 100% knit fabrics. In the result of antibacterial activity, the bacterial reduction rate of chitosan and nano silver composite knit fabrics was 99.9% to Staphylococcus aureus and Klebsiella pneumoniae.

A Study on the Indonesian Ikat Textile Design (인도네시아 이캇 직물 디자인에 관한 연구)

  • 문미영
    • Journal of the Korean Society of Clothing and Textiles
    • /
    • v.19 no.6
    • /
    • pp.866-886
    • /
    • 1995
  • The purpose of this study is to analyze the pattern and the meaning of textiles, and decorative techniques of ikat weaving and dyeing in Indonesia. The textile design also analyzes by examining the method of ikat techniques such as warp ikat, weft ikat and double ikat, and by classifying the style of regions. The most common motifs are geometric designs of spirals, meanders, straight lines, triangles, and circles which are influenced by outside world. Although these motifs or symbols have been evident since prehistoric times, their design and meaning have been continually reinterpreted as changes in the ceremonies and rituals. While motifs such as reptiles, birds, and human figures, depicted in spiral, hooked and rhomb configurations, have been identified among the most resilient features of Indonesian textile design, new meanings have been added to these ancient forms, and designs have been transformed and reinterpreted to suit local conceptions. Since textiles are a visual expression of Indcufsian life, textiles place the individual symbolically within social milieu, identifying rank, family, locality and religious affiliations. Textiles represent a link between the human and the spiritual realm, and a vehicle for the display of sacred and secular potency Ikat textiles play to embody special transforming powers and sacred mediating qualities, providing protection and evoking life-enriching forces for individuals or social group.

  • PDF

A Study on the Expression of Clothin & Textiles Recorded in $\ulcorner Makuranosorsi(枕草子) \lrcorner$ ("침초자"의 복식자료 연구)

  • 문광희
    • Journal of the Korean Society of Costume
    • /
    • v.28
    • /
    • pp.47-64
    • /
    • 1996
  • This paper is a study on the expression of Clothing and Textiles recorded in $\ulcorner Makuranosorsi(枕草子) \lrcorner$ This book was written by a Japanese servant in the Royal Court about the year 10000. In this book many kinds of clothing ornament color and materials were mentioned. The discoveries of this paper were as follows. 1. There were 85 different kinds of name In detail there were 46 Clothing and Accessories 32 Clors 11 Materials Patterns the method of Dyeing. 2. All the Clothing and Textiles in Makur-anosorsi were reflections of the reality of that times. 3. From ancient times japanse Costume was much influenced by Korea. but around the 7th century the influence increased. 4. Almost all clothing and Accessories used in Japan in the 10th century had been pre-viosly used in neighboring countries Korea and China But after they were imported to japan some of them were changed to japans hybrids especially in name and shape. 5. In Japan Clothing Colors were used in various ways sometimes colors coordinated by over lapping dress and othertimes the colors were weaved together Namely the width and length of these colorful fibres are also signifi-cant meaning. This meas that the Japanese was much more interested in color than other countries and this also proves Clothing Colors were very developed in japan by the 10th cen-tury. 6. The Materials discovered in this book were almost all silk This is the reason why $\ulcorner Makuranosorsi \lrcorner$ was the expression of the Royal Court.

  • PDF

A Study on the Expression f Clothing and Textiles Recoreded in "Eigamonokatary" ($\ulcorner영화물언\urcorner$에 나타난 복식자료 연구)

  • 문광희
    • Journal of the Korean Society of Costume
    • /
    • v.35
    • /
    • pp.293-304
    • /
    • 1997
  • This paper is a study on the expression of Clothing and Textiles recorded in $\boxDr$Eigamono-katary$\boxUl$This book is a novel de-scribed the Royal Court from 883 till 1107. In this book many kinds of Garments Orna-ments Colors and Materials were mentioned. But in this paper 69 kinds of Garments and Ornaments were reserched and the rest will be reported in the next paper, The discoveries of this paper were as follows. 1. All the things of this book were reflections of the reality in Heian period. 2. The main styling of that period was a little bit soft but the straight silhouette were fashioned, . In that time Clothing had a special meaning and the manner for a fashion was very important, .3 In the female garments Karakoromo were developed many kinds of pattern by dyeing method, Especially the Surizome was fashioned very much. 4. there were many kinds of gray tone like as clerical robe and mouning dress. This was the effection of Buddism style. 5. The decoration of fablics and garments were usualized for instance smooding and luster by beating and starch sewuing a piece of gold silver and shell nakabe and knot bend. Shawl Yumaki and Kosizasi was a charming point of that time, . 6, hair decoration shose parasol rain coat etc, . were developed and use freuently.

  • PDF

A Study on the Body Image and Life-style (신체이미지와 라이프스타일에 대한 연구)

  • 김선희
    • Journal of the Korean Society of Costume
    • /
    • v.53 no.1
    • /
    • pp.87-98
    • /
    • 2003
  • The purpose of this study was to investigate body image as attitude toward physical appearance, and appearance-management behavior, and to analyze the relationship between body image and life style which affects consumer behavior. The method of the study was survey research by using questionnaires. Subjects were 323 women in their twenties. Statistical analysis methods were frequency, percentage. factor analysis, discrimination analysis, one-way ANOVA, x 2- test, and Duncan's multiple range test. The results of the study were as follows. As for appearance-management behaviors of woman in her twenties. 60.1% of all respondents experienced in diet. 31.6% experienced in plastic operation, 47.4% experienced in skin care, 44.9% experienced in perfect make up, and 84.8% experienced in hair dyeing. The group with high appearance concern showed high body satisfaction. Life-style factors were analyzed into 5 factors. The group with low appearance concern considered active family-focus life factor importantly, the group with middle appearance concern considered social life factor, and the group with high appearance concern considered self-focus life type and conspicuous consumption life factor. A significant difference was found in body image between groups according to social level and demographic characteristics. The female group in the mid twenties who majors in arts and athletics, resides on southern part of Han river, and belongs to high society was analyzed to show high appearance concern and body satisfaction. and many experiences of appearance-management behaviors.