• Title/Summary/Keyword: cotton fibers

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Structure and Oil Sorption Capacity of Kapok Fiber [Ceibapentandra (L.) Gaertn.] (케이폭의 구조 및 흡유 특성)

  • Lee, Young-Hee;Lee, Jung-Hee;Son, Su-Jin;Lee, Dong-Jin;Jung, Young-Jin;Kim, Han-Do
    • Textile Coloration and Finishing
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    • v.23 no.3
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    • pp.210-218
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    • 2011
  • The structure of kapok fiber was characterized using FTIR and $^{13}C$-NMR spectrometers, elemental analyzer, x-ray diffractometer, SEM and IMT I-Solution ver 7.5. The kapok has a hollow tube shape and is composed of cellulose I with crystallinity of 47.95%. To develop novel oil-sorbent materials necessary to avoid the environmental pollution by spilled oil, the oil absorption capacity of various fibers such as kapok, polypropylene(PP), acryl, bamboo, cotton, rayon and wool fibers is compared in this study. The kapok fiber had the highest oil absorption capacity among the fibers and its water absorption capacity was the least. The kapok fiber selectively absorbed significant amounts of oils (43g/g of fiber for kerosene, 65g/g of fiber for soybean oil), which might be due to higher hydrophobicity of the kapok fiber, suggesting that kapok fiber may have high potential as excellent oil-absorbent materials.

Effects of Surfactants on Pectinase Treatment of Cotton/Chitosan Blends (면/키토산 혼방섬유의 펙티나제 처리시 계면활성제의 영향)

  • Song, Yu-Sun;Kim, Hye-Rim;Song, Wha-Soon
    • Journal of the Korean Society of Clothing and Textiles
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    • v.33 no.12
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    • pp.1965-1970
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    • 2009
  • This study examined the effect of surfactant pretreatment on the pectinase-treated cotton/chitosan blends by weight loss and properties such as water absorbency, dyeability, tensile strength, pilling property, and surface morphology. The weight loss of cotton/chitosan blends was 1.5% by the surfactant pretreatment/pectinase treatment. The water absorbency and dyeability of samples showed a significant improvement by the surfactant pretreatment/pectinase treatment. The tensile strength and pilling property of treated fabrics showed no change. The water absorbency and dyeability of pectinase treated samples improved with the pretreatment of the surfactant without damaging the fibers.

A Study on Softening Finish of Cotton Fabric using Cellulase (셀루라아제에 의한 면직물의 유연가공에 관한 연구)

  • Kang Ji-Yun;Ryu Hyo-Seon
    • Journal of the Korean Society of Clothing and Textiles
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    • v.14 no.4 s.36
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    • pp.262-273
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    • 1990
  • The purpose of this study is to investigate the softening effect of cellulase-treated cotton fabric and the damage on the fabric which is accompanied by the treatemnt. Cotton fabric is treated with cellulase under various concentrations and time, and the weight loss, hand values (by KES), surface characteristics, moisture regain, tensile strength, copper number and intrinsic viscosity of the treated samples and untreated samples have been compared. The results are as follows: 1. The weight loss of cotton fabric increased as the concentration of cellulase and the treating time increased. 2. The enzyme treatment had little effect on the stiffness of the treated samples but anti- drape stiffness decreased for the treated samples. Fullness and softness of the treated samples increased and crispness decreased with the lowest level reaching after two hours of the treatment for all concentrations. Scrooping feeling of the treated samples increased and flexibility with soft feeling increased as the treating time and the concentration of cellulase increased. 3. Moisture regain of the samples decreased as the treating time and the concentration of the enzyme increased and the treated fabric showed cracks on the fiber surface, and much surface fibers on the fabric have been removed after the treatment. 4. Tensile strength of the samples decreased as the treating time and as the concentration of cellulase increased, and the copper number increased while the intrinsic viscosity decreased as the treating time increased, but cellulase concentration had a little effect.

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Detergency of Woven Fabrics in Relation to the Detergents and Washing Temperature (세제의 종류 및 세척온도에 따른 각종 섬유직물의 세척성)

  • Cho Sung Kyo
    • Journal of the Korean Society of Clothing and Textiles
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    • v.3 no.1
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    • pp.49-56
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    • 1979
  • To investigate detergency of various woven fabrics in relation to the detergents and washing temperature. cotton, polyester/cotton (p/c), nylon, acetate, and polyester were soiled in aqueous artificial ($carbon-CCl_4$) soil. Each fabric was washed with soap, alkaline and neutral synthetic detergents at $30^{\circ}C$, $40^{\circ}C$ and $60^{\circ}C$ respectively. The results obtained may be summerized as follows; 1. In soap, ascension of temperature had the most important effect upon washing efficiency and the higher the temperature was, the higher the washing efficiency was showed in all fabrics. And in case of alkaline synthetic detergent, nylon and p/c fabrics were much more difficult to clean at higher temperature and also acetate and polyester had the best efficiency at $40^{\circ}C$. Detergency of neutral detergent was good but the effect of temperature in neutral detergent was less than in soap. 2. Washing efficiency of cotton was less than that of others. 3. The higher the temperature was, the higher the washing efficiency of cotton in all detergents, and the best was in soap. In p/c, detergency of neutral detergent was good but effect of ascension of temperature was lower than in soap. In nylon, washing efficiencies of alkaline synthetic detergent and neutral detergent were excellent at 30°C but detergency of soap at $60^{\circ}C$ was best. In case of acetate, detergency of all detergents was about the same at $30^{\circ}C$ but that of soap at $60^{\circ}C$ was best. In polyester at $30^{\circ}C$, efficiency of neutral detergent was excellent but that of soap was more excellent at higher temperature and the best detergency of alkaline synthetic detergent showed at $40^{\circ}C$. In general. the higher the temperature is, the higher the washing efficiency of soap is. But when synthetic fibers of nylon and polyester are washed with synthetic detergents, washing at lower temperature is advisable.

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Research on the Characteristics of Preferred Clothing Textiles of college Students - A Comparison of Slacks and Skirt (대학생이 선호하는 의복 소재의 특성 연구 - 슬랙스와 스커트용 직물의 비교 -)

  • Kim Hee-Sook
    • Journal of the Korean Home Economics Association
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    • v.43 no.5 s.207
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    • pp.43-55
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    • 2005
  • This research was designed to investigate and compare the characteristics of preferred clothing textiles for slacks and skirt of college students. One hundred five subjects majoring in fashion design were surveyed and the subjects selected three favorite materials among 120 samples presented in a swatch book. The subject's weighted frequencies were added tv order of preference. The results of this study were as follows: 1. In the spring and fall seasons, black twill cotton drill was preferred foremost as a textile for slacks, and medium gray basket weaved cotton pinhead with stripe pattern was preferred as a textile for skirts. 2. In summer, dark bluish gray plain linen crash was the most preferred material for slacks, and pale yellow plain linen tropical cloth was preferred for skirts. 3. In winter, olive gray cotton corduroy was the most favorite textile for slacks, and moderate brown twill wool hound check was preferred for the skirt. 4. In thickness and weight, textiles for winter were thicker and heavier than those chosen for other seasons, and textiles for skirts showed various thicknesses and weights as compared with those of slacks. 5. In fiber content, natural fibers such as cotton and wool were preferred for an seasons. 6. In the weave of textiles, twiu we,3ve was preferred for spring, fall and winter season, and plain weave was preferred for summer. 7 The most preferred colors for slacks were B and PB, and those for the skirts were YR and PB. For color characteristics, solid fabrics were generally preferred, and patterned fabrics were preferred for skirts as compared with slacks.

Colorfastness of Black-Colored Fabrics with Various Fibers

  • Yang, Yoon-Young;Choi, Hae-Woon;Park, Myung-Ja
    • International Journal of Human Ecology
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    • v.9 no.1
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    • pp.17-27
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    • 2008
  • Black garments can lose color, image, and be the main cause of color staining when washed with other laundry that can cause color contamination from interaction with other garments. To know the fiber-based dye fastness for colored garments, 4-5 pieces of various fibers of different fabrics were selected; cotton, linen, wool, silk, rayon, acetate, polyester, and nylon. To determine the colorfastness to washing and crocking, the black fabrics were washed with alkali and neutral detergents under the Laund-O-Meter method under the Crockmeter method. In an alkali detergent laundering conditions, most colored samples did not undergo color or light fastness. However, most of the stained fabrics slightly changed in K/S values while other samples underwent severe changes. With neutral detergent laundering, sample fabrics underwent less shrinking, and had less naps. The stained fabrics also underwent less change in K/S values. With time-repeatedly-washing the original sample went through colorfastness to lose color. In crocking fastness, most samples produced good to excellent results under dry conditions but produced relatively low crocking fastness under wet conditions. Natural fibers especially showed lower crocking fastness than artificial fibers. In conclusion, garments of the same color should be laundered together. The black garments that are washed using neutral detergents can decrease the amount of damage from color change. While it is the responsibility of garment producers to provide appropriate quality indications they should also provide adequate instructions for consumers to understand and appropriately cope with the quality indications in order to contribute to establishing a correct laundering method.

A Study on Korean Women's Bedding Consumption Status, Purchase Behavior and Degree of Satisfaction (여성의 침구 구매 행동 및 만족도에 관한 연구)

  • Cho, Chu-Hee;Kim, Chil-Soon
    • The Research Journal of the Costume Culture
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    • v.18 no.3
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    • pp.423-435
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    • 2010
  • The purpose of this study was to observe the current consumption of bedding products, purchase behavior, and to compare between purchase criteria and degree of satisfaction after the purchase. Independent variables are age, consumer's knowledge and involvement about the bedding materials. This study can contribute for bedding product marketing strategies and design development. We used questionnaires that were distributed to 500 females aged in 20s to 50s, using stratified sampling method. Only 457 reliable questionnaires were selected for statistical analysis. Data were analyzed statistically through frequencies, paired t-test, ANOVA, Dunnett T3, Chi-test, using SPSS (Version 12.0). The results of this study are as follows. The types of bedroom was significantly associated with age variables. Women in 20's to 30's were using the mixture of Ondol and bed(chimdaie), while 40's to 50's women were using bed for all their rooms. The usage of filling material for the comforter(ibul) was significantly associated with the age group. 20's to 30's age group preferred synthetic fibers for the filling, while 40 to 50's women preferred cotton fibers. Generally, the most of people used quilted comforter and they used cotton material as filling materials of comforters. As to purchase behavior, the most frequent place of purchase was specialty store of bedding products, and the highest percentage of motivation for purchase was "deformation after the use/throwing away". Purchase motivation for bedding was related with the age variable and the clusters based on the knowledge of bedding materials. We analysed the comparison test purchase criteria and satisfaction. In all attributes except brand image, people evaluated lower in satisfaction after purchase than in criteria before purchase.

A Study on the Adsorption of Anionic Surfactant by Various Textile Fibers and Rinsing Efficiency in Washing Process (세척시 섬유의 음이온계 계면활성제 흡착과 헹구기 효과에 관한 연구)

  • Park, Son Kyeong;Kim, Sung Reon
    • Journal of the Korean Society of Clothing and Textiles
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    • v.17 no.1
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    • pp.129-136
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    • 1993
  • Authors have studied the adsorption of anionic surfactant from detergent solutions on cotton fabric during washing process and have measured the concentration of the residual surfactant in rinsing solution. The relations with temperature and pre-soaking time to rinsing process have been studied. The adsorption of sodium dodecylbenzene sulfonate by various textile fibers has also been investigated. The results of this study are; 1. Three times rinsing is sufficient as, without pre-soaking, the concentration of the surfactant on fabric is stable from that time on. 2. The rinsing efficiency increases with temperature; at $25^{\circ}C$, $40^{\circ}C$, and $55^{\circ}C$, the concentrations of surfactant on the fabric after-rinsing are 68, 59, 51 mg/100 g of fiber respectively. 3. The longer the pre-soaking time, the lower the rinsing efficiency is; the 4hrs presoaked fabric shows increased surfactant concentration than the one without-soaking. And the increment is 35.8%. 4. The adsorption of sodium dodecylbenzene sulfonate on fabrics differs greatly with the chemical nature of the fiber; wool, silk and nylon which are thought to be ionic-adsorbants shows greater adsorption. 5. The adsorption of surfactant is more affected by the ionic character than the physical one, and the one with higher crystallinity such as cotton and polyester shows lower value than rayon or acetate.

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Natural dyeing with aqueous Extracts of Black bean seed coat (검정팥 종피 추출물에 의한 천연염색)

  • Cha, Hae-Suk;Jung, Yang-Sook;Bae, Do-Gyu
    • Current Research on Agriculture and Life Sciences
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    • v.30 no.2
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    • pp.76-81
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    • 2012
  • In this study the natural colorant was extracted from black bean seed coat in aqueous solution and used to dye silk and cotton fabrics. To obtain the optimal dyeing conditions it was examined at various dyeing condition (temperature, pH, time and liquor ratio). The dyeing behavior and the depths of shade which were evaluated in terms of K/S and CIELAB color difference values of the dyed and mordanted fabrics were also investigated. The dyeing fastness evaluated standard light and wash fastness tests. The obtained results were as follows ; The most K/S value of silk and cotton fabrics were obtained when the pH was 4.0 and 4.8, respectively and it increased slightly with dyeing time passes when the dyeing temperatures were at $40^{\circ}C$ and $60^{\circ}C$ but, it increased at $80^{\circ}C$. The color of silk fabrics changed from yellowish red to yellow at only Fe mordanting among various mordanting. Sn and Ti mordanting of silk fabric and only Ni mordanting of cotton fabric increased the $L^*$ values, but the others decreased. The light fastness of silk fabrics showed 4-6 grade without mordant, 4-5 grade with Al, 3-4 grade with Cu and Sn, and 2-3 grade with Fe as mordant, and that of cotton fabrics showed 1-2 grade without mordant, 2-3 grade with Fe, 2 grade with Cu, 1-2 grade with Al and Sn as mordants. All mordanting coluld not improve the light fastness of fabrics. Washing fastness(fade) of silk fabrics showed 2 grade without mordants and 2-3 grade with mordants and those of cotton fabrics showed 4 grade with Cu, 3 grade without mordant and with Al, Sn and Fe. All of the washing fastness(stain) of both fabrics showed 4-5 grade.

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A Comparison of Imported Medical Compression Stockings by Manufacturing Country (수입 의료용 압박스타킹의 제조국가별 비교)

  • Do, Wol-Hee;Kim, Nam-Soon
    • Journal of the Korean Society of Clothing and Textiles
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    • v.36 no.3
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    • pp.335-345
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    • 2012
  • This study provides product survey data for the development of medical compression stockings. An investigation analyzed imported medical compression stockings of 40 brands from 6 countries sold in the Korean market, such as Jobst$^{(R)}$, Therafirm$^{(R)}$, Rxtar$^{(R)}$, Varicoin$^{(R)}$, and Sheer&Soft (USA), Sigvaris Venosan$^{(R)}$ 4000 (Switzerland), Best$^{(R)}$ and Segreta$^{(R)}$ (Italy), Venex$^{(R)}$, Star cotton, Doktus$^{(R)}$, Maxis$^{(R)}$, Maxis$^{(R)}$ Cotton, Lastofa$^{(R)}$, and Memory Aloe Vera (Germany), and Gunze (Japan), Venos and Yolanda (Taiwan). The main fibers of compression stockings were nylon and spandex; in addition, the fiber content was different by country and brand. The number of compression classes of imported products was USA (5), Italy (5), Germany (4), Switzerland (3), Japan (3), and Taiwan (3). For basic body measurements, USA and Swiss brands used ankle circumference, calf circumference, thigh circumference, calf length, and thigh length. Italian brands used height and weight, and Japanese brands used height and hip circumference. German brands used subdivided circumferences such as ankle circumference, calf circumference, knee circumference, middle thigh circumference, and thigh circumference.