몇가지 水質成分이 繭層 Sericin의 溶解性에 미치는 影響

李仁銓,鄭都燮 경북대학교 1983 새마을 硏究論叢 Vol.3 No.-

The purpose of this study is to find out influence of reeling water conditions on the solubility of cocoon sericin. The results obtained are as follows; 1. The cocoon sericin solubility increased according to rise of temperature, pH value and M-alkalinity of reeling water. 2. In case of hardness and acidity of reeling water were high, the cocoon sericin solubility were decreased. 3. As a conclusion, too much importance of reeling water control is attached respectively to temperature, M-alkalknity, acidity, hardness, pH value in cocoon cooking process, to temperature, M_alkalinity, hardness, acidity, pH value in cocoon brushing and to temperature, acidity, hardness, pH value, M-alkalinity in cocoon reeling in order.

化學藥劑에 依한 無煮繰絲에 關한 硏究

李仁銓 慶北大學校 1976 論文集 Vol.22 No.-

This experiment was conducted to study the reasonable non-cooked reeling method which can omit the cooking process so far required the thermoenergy. The obtained results are as follows; 1. The vacuum pre treatment (3 times, 60CmHg, 35 C) with cocoon soaked into 0.05% Na_2 Sio_3, 0.05% NaOH Solution brought about 190g of reeling amount per hour, and 18.02% of percentage of raw silk. 2. Reeling of non-cooked cocoon increased 3.5% of raw silk yield as compared with the conventional method. 3. Non-cooked raw silk made higher percentage of degumming and elongation than cooked raw silk.

에너지節約型製絲法의 開發에 關한 硏究

李仁銓 慶北大學校 1983 論文集 Vol.36 No.-

This experiment was conducted to study the energy saving method for the cocoon reeling process. The important results of this study are summarized as follows; The 30℃ treatment of cocoon soaked in the mixture of 0.01% Na_2SiO_3 and 0.01% NaOH solution produced 200g of raw silk per hour, which has a 18.98 percent of raw silk. The treatment of 10℃ decrease in cocoon reeling process showed no lower quality of raw silk than that of the control.

絹絲에 對한 硅素樹脂 處理가 物理的 性質에 미치는 影響

李仁銓,李東秀 慶北大學校 1986 論文集 Vol.42 No.-

This study was carried out to investigate effects of silicon resin on tenacity, elongation and Young's modulus of silk fiber. The results obtained were as follows; Weight of silk fiber was increased with increasing concentration of silicon resin treated and treatment temperature. Tenacity of silk fiber was not influenced by either concentration of silicon resin or treatment temperature. Elongation and Young's modulus of silk fiber was increased with increasing silicon resin up to 3% regardless of treatment temperature. It was concluded that the best result of treatment on silk fiber could be obtained at 3 or lower percent of silicon resin concentration and 30℃ treatment temperature.

繭層 Sericin에 對한 몇 가지 化學藥劑 處理의 效果

李仁銓,李東秀,千承祿 COLLEGE OF AGRICULTURE KYUNGPOOK NATIONAL UNIVERSI 1985 慶北大農學誌 Vol.3 No.-

The purpose of this study was to find out effects of several chemicals treatment for cocoon sericin, and there was several results of use to control the solubility of cocoon sericin in water. The results obtained was summarized as follows : The chemicals which showed the strongest accelerating power on the solubility of cocoon sericin in water was sodium peroxide (Na_(2)O_(2)), the second was sodium carbonate (Na_(2)CO_(3)), the third was sodium sulfite (Na_(2)SO_(3)), the weakest was ammonia water (NH_(4) OH) in order among noticed silk-reeling accelerators. The chemicals which showed the inhibiting power on the solubility of cocoon sericin in water was tannic acid (C_(14)H_(10)O_(9)), the second was stannic acid (Sn(OH)_(4)), the third was formic acid (HCOOH) and the weakest was methyl alcohol (CH_(3)OH) in order among noticed silk-reeling inhibitors. Particulary stannic acid and formic acid showed accelerating power on the solubility of cocoon sericin at high temperature over 100 degrees of celsius thermometer in water Methyl alcohol did not show the inhibiting power on the solubility of cocoon sericin in low concentration. (at 1,500-2,000 times)

生皮苧의 加工에 關한 硏究

李仁銓 慶北大學校 1982 論文集 Vol.34 No.-

These studies carried out to investigate the availability of frisens filament obtained in silk reeling industry as textile thread and silk fabrics. Equipment producing frisens filament can be attached to picking part of cocoon ends of automatic reeling machine and its main structure is composed of electric cutter, diamond cross device and reel. Productvity of frisens filament is 12.5-16.3% to total amount of frisens and 524-618 gr/8hrs/set in case of automatic reeling machine. Size of frisens filament made by automatic reeling is between 320-650 denier. Tensile strength of frisens filament is about 2.2gr/d, elongation is about 15-17% and degumming rate is about 24%. Frisens filament size is coarse, so it is not proper to general silk weaving machine. Therefore, it is required to develop a new weaving machine which is suitable for weaving of coarse frisens silk fabric.

5령 누에에 있어서 Fibroin 생합성의 특성

이인전,여주홍 한국잠사학회 1996 한국잠사곤충학회지 Vol.38 No.2

Biosynthesis tracing of the silk fibroin in Bombyx mori silkworm was examined in vivo with isotopic [1-13C]Gly. labeling by nuclear magnetic resonance method. The [1-13C ]Gly. labeled silk fibroin yielded very sharp 13C NMR signal in the posterior silk gland as well as in aqueous solution and the amount of [1-13C]Gly. labeled signal in the silkworm increased gradually and rapidly to 5-th day of fifth instar. However, the decomposition or decrease of the [1-13C]Gly. labeled signal occured from 5-th to 9-th day of fiffth instar unexpectedly. These findings suggest that a relative amount of α-helical portion or amorphous silk II portion was formed without any further signal from 6-th day of fifth instal to pupation. Through peak separation of orientation spectrum, between the fiber axis and the molecular bond direction, N-H bond in Bombyx mori silk fiber as well as the orientation distribution around the silk fibroin axis were determined and two kinds of peaks were also obtained from this orientation spectrum.

製絲用水에 對한 몇가지 化學藥劑의 處理가 繭層 Sericin의 溶解性에 미치는 影響

李仁銓,李東秀 COLLEGE OF AGRICULTURE KYUNGPOOK NATIONAL UNIVERSI 1983 慶北大農學誌 Vol.1 No.-

The purpose of this study is to find out influences of several chemicals on the solubility of cocoon sericin in water, and there are several results of use to control the solubility of cocoon sericin in water. The results obtained are summarized as follows : The chemical which shows the strongest accelerating power of the solubility of cocoon sericin in water is Sodium Hydroxide (NaOH), the second is Potassium Hydroxide (KOH), the third is Sodium Silicate (NA_(2)SiO_(3)), and the weakest is Sodium Bicarbonate (NaHCO_(3)) in order among noticed silk-reeling accelerators. The chemical which shows the strongest inhibiting power of the solubility of cocoon sericin in water is Form Aldehyde (HCHO), the second is Ammonium Alum (Al_(2)(SO_(4)) . (NH_(4))_(2) SO_(4). 24H_(2)O), the third is Acetic Acid (CH_(3)COOH), the weakest is Hydrochloric Acid(HCl) in order among noticed silk-reeling inhibitors. Particulary Hydrochloric Acid (HCl), which is expected to show strong inhibiting power of the solubility of cocoon sericin in water, shows accelerating power of the solubility of cocoon sericin at high temperature over 80 degrees of Celsius thermometer in water.

反應染色絹의 Methacrylamide graft 重合

李仁銓,李東秀 慶北大學校農業科學技術硏究所 1994 慶北大農學誌 Vol.12 No.-

反應染色 絹 fibroin의 graft 重合 擧動을 알아보기 위하여 C. I. Reactive Yellow 179, Red 2, Black 5, Blue 13, Blue 49, Blue 4, Blue 19, Red 6, Blue 71, Blue 21로 絹 fibroin의 染着量이 각각 다르게 染色하고, methacrylamide graft 重合하였으며 그 結論은 다음과 같다. 1. 染料의 固着速度는 吸着速度와 一致하는 傾向이었으며, 固着速度는 Yellow 179 및 Blue 71이 가장 낮았고, Black 5, Blue 49, Blue 4, Blue 19, Blue 21은 비교적 빠른 것으로 나타났다. 2. 染色時間이 經過할수록 卽, 染着量이 增加할수록 增量率은 減少하는 것으로 나타났으나, Blue 71 및 Blue 21 染色 絹 fibroin의 增量率은 染着量의 多少에 관계없이 현저하게 높았으며, Blue 19의 경우 增量率은 12% 內外로 一定하게 나타났고, Yellow 179 染色 絹 fibroin의 增量率은 無處理 絹 fibroin과 비슷한 것으로 나타났다. 3. 平衡染色 絹 fibroin의 增量率은 Blue 71 및 Blue 21 染色 絹 fibroin의 경우를 제외하고는 모두 無處理 絹 fibroin에 비하여 낮은 것으로 나타났으며, 染色溫度가 上昇할수록 增量率은 低下하는 것으로 나타났다. 4. Graft 重合 과정에서 色相이 多少 變化하는 것으로 나타났다. Fixation rate of reactive dyes on silk fibroin showed the same tendency to absorption rate. Fixation rate of Yellow 179 and Blue 71 was quite slow and Black 5, Blue 49, Blue 4, Blue 19 and Blue 21 was relatively fast. Weight increase by MAA graft polymerization onto filk fibroin was decreased, on the whole, according to the the increase of dye fixation, but weight increase of silk fibroin dyed with Blue 71 and Blue 21 was much higher than that of silk fibroin. And weight increase of silk fibroin dyed with Yellow 179 was similar to that of silk fibroin and in case of Blue 19, weight increase was about 12%, constantly. Weight increase of silk fibroin dyed with Blue 71 and Blue 21 was higher and the others were lower than of silk fibroin. And weight increase was diminished according as the dyeing temperature rises. The color was a little changed by MAA graft polymerization.

산성화학약제의 처리가 생사의 물리적 성질에 미치는 영향

李仁銓,로사리오 차일룽가 慶北大學校 農業科學技術硏究所 1989 慶北大農學誌 Vol.7 No.-

본 실험은 견직물의 염색시에 많이 사용되는 Acetic Acid, Sulphuric Acid 및 Formic Acid등의 산성 화학약제 처리가 생사의 물리적 성질에 미치는 영향을 규명한 것으로서 그 결과는 다음과 같다. 생사의 강력(g/d)은 공시 3개약제 다같이 온도 및 pH변화에 따른 차이를 인정할 수 없었다. 생사의 신도(%)는 Acetic Acid 및 Sulphuric Acid 40℃ pH 3에서 Formic Acid 80℃ pH 4에서 유의차있게 저하되었다. This experiment was carried out to determine the effect of acid chemicals namely, sulphuric acid, formic acid and acetic acid on the physical properties of silk especially on tenacity and elongation which are the two most important properties in handling and processing of silk. The following results were observed. It was recognised that there was a significant change in elongation in all the samples tested using the three different chemicals. In the test with acetic acid, the elongation at 40℃ at pH 3 had a significant change. Change was observed in the test with sulphuric acid at 40℃ pH 3 and in the case of formic acid test, there was a significant change in the elongation of raw silk at 80℃. The above results qualifies earlier findings and studies that recorded that acids like formic acid and other organic acids could have an effect on the physical properties of silk.