• Title/Summary/Keyword: Dyeing, Fastness

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Development and Application of Cationic Agent (I) (Quaternized Polyepichlorohydrine) (카치온화제의 개발과 응용 (I) (4급화 폴리에피크로로히드린))

  • Kim, Moon Sik;Jung, Young Jin;Park, Soo Min
    • Textile Coloration and Finishing
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    • v.7 no.2
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    • pp.70-76
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    • 1995
  • The polyepichlorohydrine(poly(ECH)) was prepared by the condensation polymerization of epichlorohydrine. The cationic agent was prepared from poly(ECH) by amination of poly(ECH) with dimethyleneamine. Pretreatment of cellulosic fabric with the poly(ECH)amine produced a modified fabrics that could be dyed under neutral condition with reactive dye using small amount of the salt. Colour yield of cellulosic fabric were increased by increasing salt concentraction. cationic agent concentration. The optimum condition for colour yield was the concentration of cationic agent 5%(o.w.f), that of NaCl 4g/l, and that of $Na_{2}CO_{3}$5g/l. The dyeing of treated fabrics exhibits improved colour yield and high wash fastness.

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The Study of the Dyeability of Forsythia Koreana NAKAI (개나리 꽃잎을 이용한 염색성에 관한 연구)

  • 배상경
    • Textile Coloration and Finishing
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    • v.15 no.5
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    • pp.310-315
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    • 2003
  • The dyeing of cotton fabric with Forsythia koreana NAKAI was investigated. The colorant was extracted with methanol under various concentrations of dyestuffs at $40^\circ{C}$ and $76^\circ{C}$. UV-VIS spectrum was obtained to find the maximum wavelength of colorant. Cotton fabrics were dyed at different temperatures, mordants, in pre and post mordanting methods. The maximum wavelength of spectrum were 390nm, 410nm, 440nm. The highest K/S value was showed at 100% dye concentration, extracted at $76^\circ{C}$ and dyed at $80^\circ{C}$. The mordant effect was not good in the K/S values. The light fastness was increased at Fe-pre mordant and Cr, Fe-post mordant.

Dyeing of Silk Fabric with Amur Cork Tree (황백에 의한 견직물의 염색)

  • Kim, Byung Hee;Cho, Seung Sik
    • Textile Coloration and Finishing
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    • v.8 no.1
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    • pp.26-33
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    • 1996
  • The berberine from Amur cork tree is natural yellow dye and can be extracted more easily by water. The berberine is basic dye and was extracted at 90-95$^{\circ}C$. We have obtained the following results; 1. K/S value in the abstract of dye was increased by time-elapsing, but the reasonable time was between 90-120min. 2. The reasonable weight of Amur cork tree in the abstract of dye was between 10-20 g/L. 3. We obtained various colors in case of using mordants. ―In case of 10g/L and 20g/l, the reasonable value of mordant was 5-10%(owf). and in case of using tannic acid and $FeSO_{4}$ we could obtain high K/S value. 4. &{\lambda}_{max}& of UV spectra was shown 420nm. 5. Genarally fastness of drycleaning indicated more than grade 4. but it of perspiration was more stable in acid than alkali.

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A study on improving the fastness of metallic thin film by sputtering treatment (Sputtering 처리에 의한 금속박막의 내구성 향상에 관한 연구)

  • Jeun, Sang-Min;Seo, Seung-Kyung;Koo, Kang
    • Proceedings of the Korean Fiber Society Conference
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    • 2003.10b
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    • pp.249-250
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    • 2003
  • 최근의 국제적인 폴리에스테르의 공급과잉과 가격하락 추세가 지속됨에 따라 화섬업계에서는 생존차원에서 어떻게 기존의 폴리에스테르 품질수준을 유지하면서 생산원가 절감을 통한 경쟁력을 확보하느냐에 최대의 관심이 집중되고 있다. 또 80년대에 들어서면서 선진국을 중심으로 formal wear보다 sports, leisure wear 시장이 높은 성장을 하게되었고, 최근에는 소비자들의 관심이 광택이나 만짐새등의 심리적인 쾌적성과 보온성 및 흡수성 등의 생리적인 쾌적성 등 기능성에 대한 관심이 고조되고 있으며, 다양화, 개성화의 시대인 현대는 특히 색상이나 디자인 면에서 독특한 소재의 요구가 증대되고 있다. (중략)

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A Study on Ulraviolet-cut Ability of Silk Fabric Dyed with Natural Dyestuffs (천연염재의 자외선 차단성능 연구)

  • 김월순;최인려
    • The Research Journal of the Costume Culture
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    • v.12 no.1
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    • pp.1-11
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    • 2004
  • This study was carried out on the process of natural dye substances which can flock ultraviolet rays without producing harmful substances by pollution, germs, etc. While making human body safe in contact, extracting Gardenia, Sappan wood, Radix scutellariae, Cromwell, Mugwort, Gallnut, Lac. Those are used for curing diseases, dyeing silk cloth with those extracts, and examining the color fastness, Ultraviolet protection. From this study, the following conclusion was produced. Brightness was lower in pre-mordanting than in post. And color difference showed that Radix scutellariae was the highest. Aluminum-mordanting showed a higher color difference than Fe. Colorfastness to washing was high in all samples, and the degree of color-changing by washing was the highest in the sample dyed by gardenia, pre-mordanted gallnut showed the highest degree. Colorfastness to perspiration was the highest in gardenia. UV-A test showed that all samples a high rate of 85% or higher compared with test white cloth. Especially, post-mordanted radix scutellariae, pre-mordanted gallnut and post-mordanted sappanwood showed a superior blocking rate.

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Improving the Fading of Reusable Surgical Gown by Repeated Severe Laundering and Sterilization Condition (반복되는 고온 세탁 및 멸균 환경에 대한 Reusable 수술가운 원단의 퇴색 저항성 개선 연구)

  • Kim, Ji Yeon;Min, Mun Hong;Yeum, Jeong Hyun
    • Textile Coloration and Finishing
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    • v.25 no.3
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    • pp.215-222
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    • 2013
  • The purpose of this study is to minimize fading fabrics of surgical gown by repeated severe laundering and sterilization condition. The study showed that the best conditions were reduction cleaning using sulphinic acid derivatives or glucose organic chemicals at $98^{\circ}C$ alkaline solutions. In these conditions, color difference values(dE) were below 1.0 that means unrecognizable color change by repeated laundering and sterilization. If it treated with only laundering, reduction cleaning conditions may adjust over $80^{\circ}C$ alkaline solution. In conclusion, it is needed to select the high-washing fastness dye and reduction cleaning using sulphinic acid derivatives or glucose organic chemicals at $98^{\circ}C$ alkaline solutions for removal unfixed dyes.

Effect of Ultrasound Treatment on Finishing of Cotton Fabrics using Chestnut Shell Extract (밤껍질 추출물에 의한 면직물 기능성 가공 시 초음파 보조처리의 영향)

  • Kyung Hwa Hong
    • Journal of the Korean Society of Clothing and Textiles
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    • v.48 no.2
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    • pp.300-311
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    • 2024
  • Amid global environmental concerns, initiatives to adopt sustainable industrial processes have garnered significant attention in diverse sectors. Efforts have centered on utilizing natural resources as dyeing and functionalizing agents in the textile industry. However, the limited color fastness and functional endurance of natural compounds remains a substantial challenge. This research investigated whether ultrasound could enhance the finishing effect of natural compounds on cotton fabrics. Chestnut shell extract was prepared and applied to cotton fabrics using a pad-dry-cure technique, with concurrent application of ultrasonic power. Once integrated into the fabrics, the chestnut shell extract exhibited prolonged health benefits for users. The findings demonstrated that ultrasound treatment during the finishing process facilitated the diffusion of natural compounds from the chestnut shell extract into the fabric structure, resulting in a substantial enhancement of the finishing effect, notably augmenting the antibacterial properties of the treated cotton fabrics.

Changes in the Dyeing Property of Tencel Blended Fabrics as Susceptible Functional Fiber through Chitosan Finishing (키토산 가공에 의한 감성기능소재로서의 텐셀 혼방직물의 염색성 변화)

  • Park, Youn-Hee;Kang, In-Sook;Bae, Hyun-Sook
    • Journal of the Korean Society of Clothing and Textiles
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    • v.31 no.12
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    • pp.1672-1681
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    • 2007
  • Cationization is effective to complement the defects of Tencel blended fabrics by introducing new functions. For this purpose, we used chitosan, which is congenial to the human body, free of pollution, and easily reacted. Then, we compared it to the Tencel single fabrics. To perform such effective cationization, the fabrics were treated with chitosan after NaOH pretreatment and enzyme treatment thereof. After that, the fabrics were treated with a crosslinking agent and a softner. The dyeing property of the cationized Tencel blended fabrics and reactive dye, which is a type of anionic dye, show a high concentration in neutral salt and excellent repulsive power between the fabrics and the decreased dyes. The dyeing property of the chitosan treated fabrics represented better performances than that of untreated fabric in the lower concentration of neutral salt. Meanwhile, when it was dyed with certain acid dyes, the dyeing property of the chitosan treated fabrics showed better results due to the reaction of an amine group, which was introduced by chitosan treatment. Thus, the verification of the cationization of the Tencel blended fabrics was performed. The washing fastness of the Tencel blended fabrics showed a little bit better than that of the Tencel single fabric, and it represented a better performance in the dye with a reactive dye than that of an acid dye.

Evaluation of fastness and dyeing property for dyeable PP/PET blended yarn (가염 PP/PET 혼방사의 염색성 및 견뢰도 평가)

  • Yong, Seok-Jun;Lee, Beom-Soo;Cho, Hang-Sung;Hwang, Hye-Sun;Nam, Seung-Il;Youk, Ji-Ho
    • Proceedings of the Korean Society of Dyers and Finishers Conference
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    • 2011.03a
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    • pp.91-91
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    • 2011
  • 폴리프로필렌(PP)은 고결정성 범용수지로서 염색성, 내열성, 촉감 등의 문제로 의류용 소재로는 부적합하여 초기에는 카펫용 섬유로서 가염형 폴리프로필렌 섬유가 상업화 되었지만 성공하지는 못하였다. 그 후, 섬유 산업도 의류용 외의 산업자재, 생활 자재 분야 등이 성장함에 따라, 폴리프로필렌 섬유의 수요가 확대되었다. 최근들어 스포츠 액티브 의류가 일반의류 트렌드로 들어오면서 기능성 섬유가 요구되고 이 분위기에 맞춰 다시 한번 폴리프로필렌 섬유의 의류화가 요구되는 시점이 되었으며 섬유중 에너지 소비량이 가장 적고, 쉽게 재용해할 수 있으며 소각시 유해 가스발생량이 매우 적은 특징등이 있기 때문에 지구 환경보호의 입장에서 폴리프로필렌 섬유가 재검토되고 있다. 이번 실험은 분산염료를 이용하여 농도별, 온도별, 시간별, 후처리시 시간과 온도의 변화로 가염 PP/PET 섬유의 염색특성을 알아보기 위해 실험 진행하였다. 실험에 사용되는 시약은 1급으로, $CH_3COOH$, NaOH, $Na_2S_2O_4$이며, 조제는 분산제, 정련제를 사용하였다. 먼저 온도별 실험에서 $40^{\circ}C$에서 승온하여 각각 $100^{\circ}C$, $110^{\circ}C$, $120^{\circ}C$, $130^{\circ}C$에서 온도에 따라 염색되는 정도를 알아보았다. 가장 높은 흡진을 보이는 온도에서 각각 40min, 50min, 60min, 70min 염색 유지시간 실험을 하여 염색이 안정되는 시간을 측정하였다. 위의 실험 결과 최적의 조건으로 염색농도에 따른 Build up 실험을 진행하였다. 가염 PP/PET 섬유는 일반 Polyester처럼 $120{\sim}130^{\circ}C$에서 가장 높은 염색농도 값(K/S)을 보인다. 또한 $130^{\circ}C$에서의 유지시간에서는 50 min 이상 진행시 더 이상의 흡진이 없거나, 염료의 탈락이 있음을 알수 있다. Build up 실험에서는 8.0%까지 실험하였지만, 결과는 그 이상농도를 사용하여도 염색은 가능함을 알 수 있었다. 후처리에 대한 실험에서 염료에 따라 차이가 있지만 크게 영향을 받지 않는 것으로 보이며, 제품성 평가 결과를 보면 후처리를 했을 경우 견뢰도가 우수한 것을 알 수 있었다.

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The dyeability and antimicrobial activity of Sophora Radix ethanol extracts - Characteristics of dyed silk - (고삼 에탄올 추출액의 염색성과 항균성 - 염색 견포를 중심으로 -)

  • 박선영;남윤자;김동현
    • Textile Coloration and Finishing
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    • v.14 no.1
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    • pp.1-10
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    • 2002
  • The aim of study was to elucidate dyeability and antimicrobial and antifungal activity of silk fabrics dyed with Sophora Radix extracts according to different mordants. Dyes were extracted from Sophora Radix using ethanol. Then, silk fabrics were dyed with extracts two times by post-mordanting method in which the extract was 60%(owf), the mordant was 3%(owf), L.R was 1:20, the temperature was $60~60^\circ{C}$, the time of dyeing was 60min., and the time of mordanting was 60min. The dyeability was evaluated by surface color, K/S values and durability of dye. The skin microorganisms used in this study was S. sureus, B. subtilis, S. epidermidis, P. acnes, P. aeruginosa, E coli, A. niger, C. albicans and T. mentatrophytes. The results are as follows; 1. When mordants were added, K/S value of silk dyed was not improved much and surface color was 2.2Y to 8.8Y in H(hue) value which indicated greenish yellow to raddish yellow 2. The color fastness tests to light, perspiration, dry-cleaning, rubbing, and stain fabric washing show 4~5th degree which were valuated excellent. The color fastness to fade washing was improved to 3~4th degree by addition of $K_2CrO_7$ mordants. 3. Antibacterial activity of silk dyed using no-mordant as well as mordants was excellent on S. aureus, B. subtilis, S.epidermidis and P.acnes, but showed poor antibacterial activities on P.aeruginosa and E.coli such as gram negative baterials 4. Antifungal activity of silk dyed with ethanol extracts was good on A.niger, C.candida and T.mentagrophytes. Especially, on T. mentagrophytes there was no growth of fungus during 72 gous in silk dyed mordanting with $SnCl_2\cdot{2H}_2O$.