• Title, Summary, Keyword: absorbency

Search Result 107, Processing Time 0.044 seconds

A Study on the Scouring Effect and Dye-ability of Cotton Scoured and Dyed in A Single-bath (일욕 정련 염색에 따른 정련성 및 염색성 연구)

  • Kim, Ju-Hea;Kwan, Mi-Yeon;Choe, Eun-Kyung;Lee, Suk-Young
    • Textile Coloration and Finishing
    • /
    • v.19 no.3
    • /
    • pp.1-5
    • /
    • 2007
  • The advantage of enzyme scouring over alkali scouring is that the enzymatic process can be carried in a neutral pH, resulting in less damage on the fibers and a drastic reduction of wastewater. Since the pH of scouring bath is neutral, dyeing can be carried in the same bath. Four different types of scouring and dyeing in a single-bath were performed in this work: continuous scouring and dyeing in one-bath I and II, simultaneous scouring and dyeing in one-bath I and II. The difference between process I and II is the existence of an after-treatment process in the scouring. Dyeing was performed with three major colors(red, blue, yellow) and black to investigate the dye-ability. The absorbency of scoured and dyed fabrics was measured using gravimetric absorbency testing system. The fabric weight loss was measured after the treatment. Although the color depth for the three major colored fabrics treated in a single-bath was lower than the fabric scoured and dyed separately, the fabrics dyed with black did not show much difference. In addition, the absorbency of fabric treated in a single-bath was higher than the fabric treated separately.

A study on Comfort Properties and Antimicrobial Properties of Sports Socks Part1:- focused on the effect of fiber content and fabric structure of socks on thermal, moisture, tactile, fit and comfor sensation - (스포츠 양말의 쾌적성과 항균성에 관한 연구(제1보) -양말의 fiber content와 편성구조에 따른 온열감, 습윤감, 촉감, fit감 및 쾌적감을 중심으로-)

  • 김칠순;이훈자;박명자
    • Proceedings of the Korean Society for Emotion and Sensibility Conference
    • /
    • /
    • pp.250-255
    • /
    • 1998
  • The purpose of this study was to determine physical characteristics, and subjective sensation toward sports socks, varing types of fiber content and fabric structure. Also we tried to develop regression models from variables. Results of this study are as follows. 1. Cotton 100% socks had a highest absorbency and wickability among six different socks. The result of ANOVA shows that fiber content influenced on the wet sensation only prior to exercise. 2. Terry socks had a higher drop absorbency, stretch properties and thermal resistances than plain jersey socks. But there was no significant difference in overall comfort sensation. 3. We developed regression models to predict overall comfort sensation from thermal sensation and wet sensation. Also we can predict thermal sensation from the thickness of socks in the sole area, and we can predict wet sensation from moisture permeability

  • PDF

Photocrosslinking of PEO Films Using UV Irradiation (자외선 조사를 이용한 PEO 필름의 광가교)

  • Gu, Gwang-Hoe;Jang, Jin-Ho
    • Proceedings of the Korean Society of Dyers and Finishers Conference
    • /
    • /
    • pp.28-30
    • /
    • 2008
  • Poly(ethylene oxide)(PEO) of molecular weight of 300,000 was crosslinked by exposure to UV irradiation. Photochemical crosslinking of PEO occurred by UV irradiation and the presence of benzophenone in the film which acts as a hydrogen-abstracting agent. Percent conversion of the polymer into gel as well as water absorbency were investigated gravimetrically. Gel fraction and water absorbency of PEO films increased with increasing UV energy. In case of photocrosslinked PEO films with benzophenone, gel fraction increased up to about 90%. The thermal behavior of crosslinked PEO films was studied by thermogravimetric analysis. The maximum decomposition temperature increased with increasing UV energy and benzophenone concentration.

  • PDF

Optimization of the Water Absorption by Crosslinked Agar-g-Poly(acrylic acid) (Agar 그래프트 폴리아크릴산 겔의 흡수능 최적화)

  • Wuttisela, Karntarat;Panijpan, Bhinyo;Triampo, Wannapong;Triampo, Darapond
    • Polymer(Korea)
    • /
    • v.32 no.6
    • /
    • pp.537-543
    • /
    • 2008
  • Crosslinked agar-g-poly(acrylic acid) (x-agar-g-PAA) super absorbent with a water absorbency ($Q_{H2O}$) of approximately 660 g/g was synthesized by the copolymerization of agar with an acrylic acid monomer. KPS and MBA were used as the initiator and crosslinker, respectively. Grafting was performed in air. Infrared spectroscopy was used to identify the product of copolymerization. The optimum conditions to synthesize the x-agar-g-PAA superabsorbent were 0.1 g of agar, 0.1 g of the KPS initiator, for 15 min; 50% AA monomer, 0.005 g of the MBA crosslinker, for a propagation time of 5 min; and 1 M NaOH for 15 min to allow for saponification. The reaction temperature was $80{^\circ}C$.

A Study on Recycling NaOH from Pre-treatment Process with Concentration Control System - Scouring Ability of Cotton Fabric Treated with Recycled NaOH - (농도제어장치를 이용하여 면직물 전처리 공정에서 발생하는 가성소다 폐액의 재활용에 관한 연구 - 재활용 가성소다에 의한 면직물의 정련성 -)

  • Lee, Un-Pill
    • Fashion & Textile Research Journal
    • /
    • v.6 no.3
    • /
    • pp.393-398
    • /
    • 2004
  • This research offers recycling method of NaOH from mercerizing process of cotton fabric. The measuring system of NaOH concentration was designed for the mercerizing process and tested for various conditions which can be occurred in factory. The accuracy of the system was varied as the testing condition was changed. As the concentration of sulfuric acid used for titrating NaOH decreased, the accuracy of measuring system increased. The concentration of NaOH for waste water collected from mercerizing process was measured by 5.2%. As the ratio of newly mixed NaOH increased, moisture regain. water absorbency and whiteness of the specimen increased. The bending rigidity(B) and shear rigidity(G) decreased, as the ratio of newly mixed NaOH increased.

Bioscouring of 100% Cotton Fabric with Alkaline Pectinase (알칼리 펙티나제를 이용한 면직물의 효소정련)

  • Choe Eon Kyung;Park Jong Ho;Kim Sung Dong
    • Textile Coloration and Finishing
    • /
    • v.17 no.1
    • /
    • pp.14-19
    • /
    • 2005
  • Study on the use of enzymes for textile wet processing has been very active. The exploratory research conducted herein is related to the bioscouring process for cotton fabric. The optimum concentration of alkaline pectinase(BioPrep) was in the range of 0.05~0.2 g/l, the proper treatment time was 30~60 minutes, the appropriate treatment temperature was $60^{\circ}C$ for both the batch method and the padding method. The simultaneous desizing/bioscouring by padding method did not give water absorbency as good as the bioscouring after desizing. Color of fabrics which were bioscoured and dyed with direct dyes and a reactive dye was just a little darker than that of NaOH scoured one. K/S and Lab values of the bioscoured fabrics, regardless of the degree of water absorbency, were quite similar to each other.

The Effect of Steam Treatment on Dyeing Properties of Wool Fibers (증기처리가 양모섬유의 염색성에 미치는 영향)

  • Lee, Mun Cheul;Bae, So Yeung;Wang, In Sook
    • Textile Coloration and Finishing
    • /
    • v.9 no.2
    • /
    • pp.10-16
    • /
    • 1997
  • Merino wool top and fabric have been treated with steams such as superheated steam or high pressure steam. Moisture regain, water absorbency, water penetration, zeta potential, ESCA, SEM, and dyeing behavior were studied. Negative electric potential on the surface of wool fibers by steam treatment became higher than untreated. From the results of ESCA measurement, intensity of $O_{1s}$ was increased by steam treatment. Rate of dyeing and saturation dye exhaustion of wools increased by steam treatment, especially high pressure steam treatment. Moisture regain, water absorbency, water penetration, and surface appearances by SEM photographs of the steam-treated wools didn't change. There is no relationship between dyeing of the steam-treated wool and wettability to water. Therefore It seems likely that relaxation of adhesive filler in interscale of wool by steam treatment accelerate dye penetration into the fiber.

  • PDF

Enhancing the Absorption Properties of Biomass-based Superabsorbent Terpolymer

  • Kim, Jung Soo;Kim, Dong Hyun
    • Elastomers and Composites
    • /
    • v.55 no.4
    • /
    • pp.249-256
    • /
    • 2020
  • Superabsorbent polymers (SAPs) can absorb and retain ten to thousand times their dry mass of water because of their three-dimensional hydrophilic structures. Conventional SAPs are mainly composed of poly(acrylic acid sodium salt) derived from petrochemicals. The present work is aimed at limiting the use of the petrochemical component by replacing it with a biomass-based material. First, the core-SAP was prepared via the terpolymerization of itaconic acid, vinylsulfonic acid, and cellulose, and the optimum conditions in terms of material input ratio were determined. Following this, the core-SAP was surface-crosslinked by esterification with butane diol to improve its liquid permeability and absorbency under load (AUL). The liquid permeability was measured according to the amount of 0.9 wt.% NaCl solution passing between the swollen SAP particles under a given pressure, and the AUL was estimated from the weight of this solution absorbed under 0.3 psi pressure.

Radiation-Induced Grafting of Acrylic Acid onto Cellulose: III. The Water Absorption Characteristics (셀룰로오스에 아크릴산의 방사선 그라프트 반응: III. 셀룰로오스의 흡수특성)

  • Kwon, Oh Hyun;Nho, Young Chang
    • Applied Chemistry for Engineering
    • /
    • v.9 no.4
    • /
    • pp.516-522
    • /
    • 1998
  • In this study, a water adsorbent was synthesized by radiation grafting of acrylic acid and multifunctional monomers such as 1,2-propanediol dimethacrylate (PDMA) and 1,1,1-trimethylolethane triacrylate (TMETA) onto cellulose and its subsequent treatment with 5% NaOH. Its absorbency on $H_2O$ and 0.9 % NaCl aqueous solution was examined. The highest absorbency on water and on 0.9% NaCl aqueous solution was obtained from the addition of 0.75 vol % PDDMA and of 1.0 vol % TMETA onto acrylic acid solution, respectively. The absorbency of commercial hygienic band on water and NaCl aqueous solution was 21 g/g and 22 g/g, respectively. However, that for acrylic acid-grafted cellulose including TMETA was 298 g/g and 54 g/g, respectively.

  • PDF