• 감성과학
• /
• 제13권4호
• /
• pp.693-702
• /
• 2010

본 연구에서는 미생물에서 추출한 천연 색소로 염색한 직물의 색채특성을 고찰하고 염색 직물의 색채감성에 영향을 미치는 색채감각과 물리적 색채특성을 규명하고자 하였다. 미생물 Zooshikellar에서 추출한 prodiginine 색소를 이용하여 적자색으로 염색된 면, 견, 모, 나일론 직물에 대하여 20대 대학생 남녀 40명을 대상으로 의미미분법을 이용한 색채감각 및 감성을 평가하였다. 미생물 prodiginine 색소로 염색한 직물의 색채감성요인은 '유쾌성', '품위성', '독특성', '편안성' 등 4개 요인으로 분류되었는데, 이 중 '유쾌성' 요인이 미생물 색소로 염색한 직물의 대표적인 색채감성요인이라는 것을 알 수 있었다. 미생물 prodiginine 색소로 염색한 직물 색채의 명도 $L^{\ast}$은 '유쾌성' 요인과 유의한 관계를, 채도인 $C^{\ast}$는 색채감성요인 모두와 유의한 관련성을 보였으며, $a^{\ast}$와 $b^{\ast}$ 의 물리적 색채변인 또한 색채감성요인에 유의한 영향을 끼쳤다. 또한 색채감각과 색채감성요인은 부분적으로 유의한 관련성을 보였다. 미생물 prodiginine 색소로 염색한 직물의 색채감성, 색채특성 및 색채감각 중에서 색상 선호도를 예측해 주는 변인은 '유쾌성'과 '독특성'을 포함한 색채감성임을 알 수 있었다.

• 한국염색가공학회지
• /
• 제13권6호
• /
• pp.374-380
• /
• 2001

Cotton and ramie fabrics were dyed with artemesia and gardenia dyeing solutions. The chroma values of the fabrics dyed with gardenia were higher than that of artemesia. The ramie fabrics dyed with gardenia showed higher chroma values than the cotton fabrics. The colors of fabrics were deeper in shade but their chroma values were improved no more by repetition of dyeing process in artemesia dyebath. The two ways of dyeing processes were carried out. In the first wan, each fabric was dyed in 5 different concentration(1∼5%) of gardenia dyebath to get the fabrics dyed in different shades. After then the gardenia dyed fabrics were dyed again in the artemesia dyebaths. In the second way, the 5 fabrics were dyed in different shades by repetition of dyeing process in artemesia dyebath. After then the artemesia dyed fabrics were dyed again with the gardenia dyebaths. When the artemesia dyeing process was added on the fabrics dyed in five shades with gardenia, the color differences between five samples were slight. But when gardenia dyeing process was added on the fabrics dyed in five shades with artemesia, the samples showed different hue of colors between yellow and green of Munsell color circle. Like almost of fabrics dyed with Plants materials, the colorfastness to light and laundering of the dyed samples were poor But the colorfastness to drycleaning was good.

• 한국염색가공학회지
• /
• 제13권6호
• /
• pp.16-16
• /
• 2001

Cotton and ramie fabrics were dyed with artemesia and gardenia dyeing solutions. The chroma values of the fabrics dyed with gardenia were higher than that of artemesia. The ramie fabrics dyed with gardenia showed higher chroma values than the cotton fabrics. The colors of fabrics were deeper in shade but their chroma values were improved no more by repetition of dyeing process in artemesia dyebath. The two ways of dyeing processes were carried out. In the first way, each fabric was dyed in 5 different concentration(1∼5%) of gardenia dyebath to get the fabrics dyed in different shades. After then the gardenia dyed fabrics were dyed again in the artemesia dyebaths. In the second way, the 5 fabrics were dyed in different shades by repetition of dyeing process in artemesia dyebath. After then the artemesia dyed fabrics were dyed again with the gardenia dyebaths. When the artemesia dyeing process was added on the fabrics dyed in five shades with gardenia, the color differences between five samples were slight. But when gardenia dyeing process was added on the fabrics dyed in five shades with artemesia, the samples showed different hue of colors between yellow and green of Munsell color circle. Like almost of fabrics dyed with Plants materials, the colorfastness to light and laundering of the dyed samples were poor. But the colorfastness to drycleaning was good.

• 한국염색가공학회지
• /
• 제19권1호
• /
• pp.1-11
• /
• 2007

Dyeing of polyester/cotton blends is usually carried out through the two-bath or one-bath two-step dyeing method using proper disperse dyes and reactive dyes for each fiber. However, the dyeing requires relatively long and complicated procedure as well as there are some problems such as lower dyeability. In the present study, new one-bath one-step dyeing process was investigated using disperse dyes having amino groups and hetero-bifunctional bridge compound(DBDCBS) including dichloro-s-triazinyl groups and ${\alpha},{\beta}$-dibromopropionylamido groups to improve the dyeability of cotton component in polyester/cotton blends. And the one-bath dyeing properties of polyester/cotton blends was evaluated by various dyeing conditions such as pH, temperature and dye concentration, The optimum dyeing condition was pH 4 and $110-120^{\circ}C$. Color fastness were relatively good because of the colvalent bond formation between DBDCBS-reacted cotton fiber and disperse dye.

• 한국염색가공학회:학술대회논문집
• /
• 한국염색가공학회 2011년도 제44차 학술발표회
• /
• pp.102-102
• /
• 2011

레이온 섬유는 dry한 촉감, 고광택, 드레이프성 등 의류 분야에서 요구하는 많은 장점들을 가지고 있으나 타 섬유 소재에 비해 소비량이 적은 것은 합섬이나 면/울 제품에 비해 상대적으로 제품 가격이 높고, 형태안정성이 취약하여 정장 및 캐주얼의 겉감 용도로 쓰기에는 성능 보완이 필요하다. 또한 염색가공 공정에서 구김발생이 많으며, 열고정이 쉽게 이루어지지 않아 습윤강도와 탄성 회복률이 낮아 변형이 쉽게 발생된다. 이에 본 연구에서는 합섬의 장점을 그대로 유지하면서 레이온 섬유가 갖는 고비중과 우수한 드레이프성과 유연한 질감으로 소프트 터치를 발현하는 특수한 레이온 대체 소재를 실현하고자 하였다. 직물에서 드레이프성과 은은한 광택을 확보하기 위해서는 폴리머단계에서 비중과 광택을 발현할 수 있는 무기입자 중 비중이 높고, 중합 후 폴리머 내에서 광택을 유지하는 입자의 선택이 필요한데 본 실험에서는 $BaSO_4$를 이용하여 PET dope액과 중합한 후 용융 방사하여 고비중 폴리에스테르사(100/48)를 제조하였다. 고비중 폴리에스테르사를 이용하여 폭 58inch, 밀도 92T, 중량 324.8g/yd 직물로 제직하여 그에 따른 태를 측정하였다. 태측정기(KES-FB, KATO TECH CO)를 이용하여 인장 & 전단강도, 굽힘강도, 압축강도, 표면측정 시험 결과 $BaSO_4$ 2% 첨가한 원단의 드레이프성이 우수한 것을 확인할 수 있었다.

• 한국염색가공학회지
• /
• 제27권2호
• /
• pp.142-148
• /
• 2015

The aim of this study was to investigate the possibility utilizing Metasequoia(Metasequoia glyptostroboides) cone as a new natural dye resource. Dyeing onto cotton fiber was carried out to study the effect of dyeing conditions and mordanting effect on dye uptake, color change, and colorfastness. FT-IR analysis supported that hydrolyzable tannins were contained in the extracted colorant. Metasequoia cone colorant showed low affinity to cotton fiber and maximum dye uptake was obtained at pH 3.5 showing YR Munsell color. Mordanting improved dye uptake regardless of mordant type, especially Fe($C_5H_{10}FeO_6$) mordant was effective as much as 2 times higher dye uptake comparing with un-mordanted sample. The color of dyed fabric with mordanting showed YR Munsell color except of the Fe($FeSO_4{\cdot}7H_2O$) mordanted sample showing Y Munsell color. Colorfastness to rubbing and washing was relatively good, whereas lightfastness of the dyed fabrics was above grade 3/4 except that the dyed samples with Fe mordanting showed grade 2. It is necessary to apply Metasequoia cone colorant onto other fibers, especially protein fibers, for evaluating its efficacy as a new natural dye resource.

• 한국염색가공학회지
• /
• 제28권1호
• /
• pp.14-22
• /
• 2016

The objective of this study is to develop eco-friendly, functional towel material utilizing cotton-Modal-chitosan blended(C-M-CH) yarn and natural dyeing with mugwort colorants. Dyeing properties of towels with mugwort colorants were studied by investigating the effect of dyeing conditions including concentration of mugwort colorants, dyeing temperature, and dyeing time, and the effects of mordants on dye uptakes were investigated. The C-M-CH towel showed better dye uptake than 100% cotton towel with mugwort colorants. The shade of towels got darker and red-yellowish tint increased by mordanting. Comparing with 100% cotton towel, the colorfastness of dyed C-M-CH towel was satisfactory showing above 3 grade which is the lowest grade to washing fastness. The antibacterial activity against Staphylococcus aureus and deodorization performance of towels were excellent and improved by dyeing with mugwort colorants. From the results obtained, it is concluded that the cotton-Modal-chitosan blended towel dyed with mugwort colorants can be used practically for an eco-friendly and multi-functional towel materials with excellent absorbance and drying properties.

• 한국전자파학회지:전자파기술
• /
• 제5권3호
• /
• pp.78-87
• /
• 1994

생물학 및 의학등의 생명과학에서는 현미경을 이용하여 생체물질 즉, 생체조직을 관찰하고 이에 대한 조직의 검사 결과를 판정하고 발표한다. 이때 필히 고정과정(fixation process)을 거쳐야 한 다. 즉, 생체조직중 조직의 구조, 특정 세포나 바이러스 및 효소등을 관찰할 때 고정과정을 거쳐 조직을 절편하고 이를 염색하여 현미경으로 검사하게 된다. 고정과정이란 생체물질을 안정화시키고 자기분해 혹은 부패를 방지하여 보존이 가능하도록 변화시키 는 과정으로, 조직내의 용해성 물질을 불용성 물질로 변형시키는 과정이다. 고정과정을 거친 생체조직 은 구조를 보존하고 있기 때문에 조직의 훼손이 없는 상태에서 절편이 가능하고 또한 염색상태를 좋게 하며 관찰시 contrast를 증진시킨다. 만약 고정과정을 거치지 않으면 물질의 세포막이 파괴되고 단백질 등의 물질이 용해되어 조직의 변형을 일으켜 제대로 조직을 관찰할 수 없게 된다. 고정과정에는 크게 화학적 고정법과 물리적 고정법이 있다. 화학적 고정법은 생체조직을 화학용액에 처리하는 방법이며, 물리적 고정법은 직접적인 열 혹은 초음파등으로 물질을 고정시키는 방법이다. 표 면과 내부의 열전도가 달라져 고정이 균일하게 되지 않는 단점을 가지고 있기 때문에 보통 2~6일의 고 정시간을 요하는 화학적 고정법을 사용하고 있다. 따라서 조직에 대한 총 검사시간이 최소 6일에서 최 대 12일이 요구된다. 병원등에서 조직검사의 결과가 늦게 발표되는 사유는 바로 화학적 고정법을 사용 하여 생체조직을 관찰하고 그 결과를 판정하기 때문이다. 본 고에서는 마이크로파를 이용하여 약 3시간만에 조직의 상태를 관찰할 수 있는 고정법을 소개한다. 마이크로파를 이용하여 조직을 고정하는 고정방법을 기존의 고정법과 비교하여 이들의 장단점을 나타 낸다. 본 연구자에 의해 개발된 마이크로파 고정기를 소개하고, 이를 이용하여 생체물질을 고정한뒤 절 편, 염색하여 현미경 관찰결과를 발표하여 본 연구의 방법이 기존 방법보다 우수함을 나타낸다.

• 한국염색가공학회지
• /
• 제27권3호
• /
• pp.194-201
• /
• 2015

Cotton and silk fabrics were dyed with Houttuynia cordata extract using aqueous ethanol solution and the dyeing and post-treatment conditions were optimized to impart antimicrobial activity to the fabrics. The dried Houttuynia cordata can be extracted at $80^{\circ}C$ for 3 hours using an aqueous ethanol solution containing 70%(w/w) ethanol. For the highest color yields. Both cotton and silk fabrics can be dyed at $100^{\circ}C$ for 60min with 10g/L of NaCl under pH 4. Silk fabrics can be dyed to higher K/S than cotton fabrics. The color fastness properties of the dyed fabrics were good when either citric acid crosslinking or aluminum alum mordanting was carried out as a post treatment. The dyed silk and cotton fabrics with the post treatments showed excellent antimicrobial activity against both Staphylococcus aureus and Klebsiella pneumoniae.

• 한국염색가공학회지
• /
• 제6권3호
• /
• pp.1-7
• /
• 1994

Cotton fiber and NaOH-mercerized cotton fiber had been treated by liquid ammonia and were dyed with two direct dyes, C.I. Direct Red 2 and Blue 1. The effect of the treatment on the rate of dyeing, dye adsorption isotherm, and affinity were studied. The rate of dyeing was increased in the order of NaOH-mercerized> NaOH/liquid ammonia-treated > liquid ammonia-treated>Untreated cotton irrespective of kind of dyes. The rate of dyeing for NaOH-treated fiber considerably increased, whereas liquid ammonia-treated or NaOH/liquid ammonia-treated did not because the structural transformation was not enough for the dyes to penetrate easily into the liquied ammonia-treated cottons. The time of half-dyeing was considerably reduced by mercerizing with NaOH, but lengthened by liquid ammonia treatment because of increased equilibrium dye exhaustion especially in dyeing with C.I. Dierect Red 2. In spite of a short time of the ammonia treatment for 4 seconds, the equilibrium exhaustions of both of direct dyes, C.I. Direct Red 2 and C.I. Direct Blue 1, were increased in proportion to internal volume of treated cotton under a condition of fixed affinity.