• Journal of the Korean Society of Costume
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• v.51 no.4
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• pp.81-95
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• 2001

The purpose of this study is to categorize the typs of fabrics and to analyze weaving method and pattern design on the silk fabrics from Jang-Gi Jung s tomb. The conclusions of this research are as follows. 1) Among the 32 pieces of excavated clothes, 90% of them were made of silk fabric and 65% used patterned silk. I would assume, therefore, that the tomb was owned by a person of higher society who could afford the best clothes of the time. 2) The weaving methods of silk include tabby, twill damask with different direction (2/1 warp faced ground, 1/3$\cdot$1/4 weft faced pathern), self-patterned satin damask (4/1 warp faces ground, 1/4 weft faced pattern), and brocaded satin damask. 3) The arrangement of the motifs and the kinds of patterns on these silk fabric can be divided into two categories: first group is allover arrangement of peony or lotus and second group is the scattered arrangement of omen of luck. 4) Two pieces of fabric was stamped and the letters of the stamp make me to think about the possibility that the fabrics are from China. But to make this paint clear more relics of this kind should be excavated so that further research can be done.

• Textile Coloration and Finishing
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• v.7 no.4
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• pp.74-86
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• 1995

Antibacterial and deodorization properties of silk fabrics dyed with Sappan wood are investigated by Halo, Shake flask, Bioassay and Detection column methods.The results are obtained as follows; 1. Although K/S values increase with Al mordant and concentrate concentrations, these are decreased in 10% Al mordant concentration in case of 4mlg dye concentration. 2. Reduction ratios of bacteria increase with K/S values in various tests. 3. When undyed silk fabrics are treated with Al mordant, reduction ratios of bacteria are not varied with Al mordant concentrations. 4. Deodorization property of Al pre-mordanted dyeing silk fabrics is better than one of unmordanted dyeing and raw silk fabrics. 5. Antibacterial properties of Cu and Cr mordanted dyeing fabrics are better than ones of the dyeing fabrics treated with the other mordants. 6. Natural dyes extracted from Sappan wood show the good antibacterial and deodorization properties, and colorant among various components contained in Sappan wood has a excellent antibacterial and deodorization properties.

• Journal of the Korean Dietetic Association
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• v.25 no.3
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• pp.217-228
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• 2019

There have been no published studies concerning the anti-inflammatory effects of corn silk on colon cancer cells. Thus, this study was conducted to investigate the effect of corn silk extract containing high levels of maysin on inflammation and its mechanism of action in colon cancer cells. SW 480 human colon cancer cells were treated with $1{\mu}g/mL$ of lipopolysaccharide (LPS) to induce inflammation, and next they were treated with different concentrations of corn silk extract (0, 5, 10 and $15{\mu}g/mL$). The concentrations of nitric oxide (NO) were determined. The mRNA expressions of inducible nitric oxide synthase (iNOS), cyclooxygenase-2 (COX-2), tumor necrosis factor ${\alpha}$ ($TNF-{\alpha}$), interleukin-1beta ($IL-1{\beta}$) and interleukin-6 (IL-6), were determined. Western blot analysis was performed to determine the protein expressions of nuclear factor-kappa B ($NF-{\kappa}B$) and mitogen-activated protein kinases, and the latter consists of extracellular signal-related kinase (ERK), c-jun NH2-terminal kinase (JNK) and p38 MAP kinase (p38). The concentration of NO and the mRNA expression of iNOS were significantly and dose-dependently decreased in the corn silk-treated groups (P<0.05). The mRNA expression of $TNF-{\alpha}$, $IL-1{\beta}$ and IL-6 were significantly increased in the LPS-treated group (P<0.05), but these expressions were significantly and dose-dependently decreased in the corn silk treated groups (P<0.05). The protein expressions of $NF-{\kappa}B$ (in a dose-dependent fashion), ERK (at 10 and $15{\mu}g/mL$), JNK (at $15{\mu}g/mL$) and p38 (at 10 and $15{\mu}g/mL$) were significantly decreased with corn silk treatments (P<0.05). In conclusion, corn silk extract containing high levels of maysin seems to inhibit the LPS-induced inflammatory responses in SW480 colon cancer cells via the $NF-{\kappa}B$ pathway.

• Textile Coloration and Finishing
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• v.5 no.2
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• pp.134-138
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• 1993

Wool, silk and nylon 6 fabrics were treated with low-temperature plasma under atmospheric pressure of acetone/argon or helium/argon for 30 and 180 sec, and then dyed with leveling type acid dye, C.I. Acid Red 18 and milling type acid dye, C.I. Acid Blue 83. In spite of short time of the plasma treatment for thirty seconds, the color depth of wool fabrics was increased remarkably with both of the plasma gases, aceton/argon or helium/argon and with the kinds of dyes i.e., levelin type or milling type. But the atmosperic low-temperature plasmas did not increase the depth of silk and nylon 6 fabrics dyed with both of the acid dyes regardless of the teated time and plasma gases. It seems that low-temperature plasma by atmospheric-pressure discharge is effective for improvement of dyeing of wools as is the same way with the low-temperature plasma by glow discharge. The kinds of plasma gases and treated time did not influnce the depth of wool fabric pretreted with the atmosperic low-temperature plasmas.

• Textile Coloration and Finishing
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• v.14 no.4
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• pp.249-258
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• 2002

Natural silk is formed by two proteins : the crystalline fibroin (inside the silk thread) and amorphous sericin (as a tube outside the thread). The degumming process is used to eliminate the external sericin prior to dyeing ; generally it makes use of soaps at about pH 10. Sericin is the protein constituent that "gums"together the fibroin filaments of cocoon silk. It constitutes about 25% of the weight of the cocoon, is soluble in hot water and "gels" on cooling. The removal of sericin from raw silk, known as degumming, is a simple but important process usually employing hot dilute soap or alkaline solution and occasionally dilute acids or enzymic methods. During degumming, alkali is taken up by the sericin and the free acid from the soap is formed ; this may be deposited on the fiber, reducing the rate of degumming and protecting it from hydrolysis. Alkali is often added to maintain or restore the pH of the baths, but it is rarely used alone, since it leaves the silk rather harsh in handle. If complete sericin removal is required as for printing, sodium carbonate may be added. If the pH of the bath exceeds 11, the fibroin is attacked. Recently, According to the development of electrolysis, we can be obtained the electrolytic reduction water(above pH 11.5) and electrolytic oxidation water (below pH 3). The aim of this work was to study a degumming process using electrolytic water and a possibility of sericin recovery. The new degumming process used electrolytic water operates at $95^\circ{C}$ for 2hr. without any reagents. The wastewater of this process are formed by a solution of sericin in water. This conditions suggest the study of a possible recovery of this protein (sericin) which has an amino acid composition suitable for many used in cosmetics, textile finishing agents, animal feeding, etc. The degumming process using electrolytic water is available to reduce treatment costs and pollute and at the same time to recover sericin.

• Journal of the Korean Chemical Society
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• v.20 no.4
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• pp.299-308
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• 1976

Cerium (Ⅳ) ion-initiated graft copolymerizations of acrylamide and of acrylonitirile to silk fibroins were investigated. When acrylamide was used, the change in ceric ammonium nitrate concentration exhibited a maximum in degree of grafting at 0.01 M. Also observed was that the change in acetic acid content in reaction media gave a maximum in degree of grafting at 7% acetic acid in water. Degree of grafting was increased generally with increase in acrylamide concentration reaction time and reaction temperature. When acrylonitrile monomer was used for grafting,different results were obtained. Addition of nitric acid was more effective in enhancing the degree of grafting than the addition of acetic acid.Generally the grafting of acrylonitrile to silk fibroins was less efficient than the grafting of acrylamide. The portion of grafted silk fibroins insoluble in Lowe's reagent exhibited the IR absorption bands characteristics to both vinyl polymers and silk fibroins, indicating the grafting of vinyl monomers to silk fibroins. To examine the molecular weight of graft vinyl polymer, a sample of grafted silk was hydrolyzed by 10% sodium hydroxide. Viscosity measurements indicated that the molecular weight of the graft polymer was in the range of 105.

• Journal of Sericultural and Entomological Science
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• v.27 no.2
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• pp.40-46
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• 1985

The equilibrium sorptions of C.I. Reactive Blue 19 and C.I. Reactive Blue 19 and C.I. Acid Blue 138 on Silk fibroin were investigated in the range of 50$^{\circ}C$, 70$^{\circ}C$, 90$^{\circ}C$ and to the pH range from 2.0 to 10.5. The results obtained are summarized as follows: 1) The amount of sorption of reactive dye was increased with the decrease of pH in dyeing solution and temperature. The amount of fixation showed the maximum value to pH 8.5 and 70$^{\circ}C$. 2) In acidic region, the sorption behavior of acid dye was similar to that of reactive dye, and Langmuir adsorption constant was increased with the decrease of pH. 3) Langmuir constant of both dyes was decreased with the increase of temperature, while standard affinity was increased. 4) The reaction of both dyes was exothermic and the values of $\Delta$S$^{\circ}$ were positive. 5) It was found that the sorption behavior of dyes against Silk fibroin could be described as Langmuir adsorption and Nernst distribution in lower pH region.

• Journal of Sericultural and Entomological Science
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• v.32 no.2
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• pp.110-112
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• 1990

The influence of the concetration of the discharging agent on some properties of silk fabric dyed with reactive dyes studied. The tensile strength, yellow index and whiteness were investigated as parameters to determine the effect of the dischanging agent. The results were summarized as follows ; 1. The tensile strength and the yellow index decreased with the increase of the concentration of the discharging agents. 2. The whiteness depended on both of the type and the concentration of the discharging agent.

• Proceedings of the Korean Fiber Society Conference
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• 1993.06b
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• pp.413-417
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• 1993

A study has been conducted on the mechanical properties of two sort of woven silk fabrics, i.e. habutae and dechine, with KES-류 handle measurement system. The mechanical properties are compared with their structural parameters, such as fabric densities, thickness

• Journal of the Korean Society of Clothing and Textiles
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• v.16 no.3 s.43
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• pp.251-256
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• 1992

As a basic expriment to find out the thermal insulation effect of bedding KES-F7 was used to measure. The warmth retaining ratio of the six kinds of filling materials as cotton, wool , silk, down, cotton/polyester was measured, and the infleunce on the warmth retaining ratio of the warmth retaining ratio and humidity by the material was investigated. The results obtained are as follows: 1. The warmth retaining ratio of each filling material was shown to range from $70\%$ to $77\%$ . The warmth retaining ratio of each material preyed to be high in order down> polyester> cotton/polyester>cotton>silk>wool fiber. 2. The warmth retaining ratio of each filling material decreased with the inclose of the humidity The effective reduction rate by filling fiber's was high in order wool>cotton>cotton/polyester>silk>down>polyester material. 3. The warmth retaining ratio of each filling material was shown to be in counter-correlation with the humidity, and the correlation coefficient (r=0.94-0.98) proved to be highly signi-ficant.