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생사(生絲)의 포합향상(抱合向上)에 관(關)한 연구(硏究)
최병희 ( Byong Hee Choe ),김병호 ( Byong Ho Kim ),원성희 ( Song Hi Won ) 한국잠사학회 1973 한국잠사곤충학회지 Vol.15 No.1
한국생사가 수요가측의 불평을 받은 주요원인은 제사표준작업규준을 이탈한데 발생하였으며 본 논문발표로 인하여 제사공정의 표준보전에 더욱 진력할 것을 강조하고 다음과 같이 개별결론을 붙인다. (1) 건견과 자견은 가급적 약자견이 될 수 있는 방안을 선택하되 대중절발생이 유발되는 방법은 피하여야 한다. (2) 조사과정에서 kennel의 표준유지에 노력할 것이며 얼레부위의 건조온도에 유의하여야 한다. (3) 양반전 얼레침지는 가급적 고착방지제를 사용하고 특히 양반기내의 온도 주의하여야 한다. (4) 조사속도나 양반권급속도는 능률향상 입장에서 가급적 증대시켜야 되지마는 포합에도 개선의 일방책임을 알았다. (5) 제사용수는 표준수질을 사용하여도 포합을 악화시키는 일이 없으므로 생사의 사량 및 사질위주의 사용을 지속할 것이며 특히 일본생사의 포합개선을 H형 교환수질사용으로 등전점부근에서 주견한 탓으로 사량도 늘고 포합도 좋아 졌다고 본다. (6) 대중절성적향상에, 중점을 두고 표준작업을 하는 현 포합성적의 악화는 억제 될 수 있다. (7) 견사 sericin은 스스로 어느 정도의 포합력이 있으며 물리적 추리변화로 향상시키려 하여도 그 효과에는 한계성이 있어 포합성적향상에는 “효과한계”가 있음을 알게 되었다. (8) 일단 조제된 생사는 구성견사가 결속되어 있어야 하고 생사와 생사간의 교착이 발생하기 전에 건조되도록 모든 과정을 설치할 필요가 있다. The purpose of this studies is to improve the cohesion of raw silk through various analyses on cocoon drying, cooking, reeling, re-reeling, and on the properties of water. Also we investigated the correlation between silk testing items which we have reached to the following results. 1. Drying of cocoon When cocoons were slowly dried with 100℃, the results of cohesion became much better. On the other hand, the results were considerably decreased in case the temperature with 115℃. 2. Cooking of cocoon In case of the cooking of cocoon, we found that the result of cohesion was best with incomplete cooking, that of the control was next, while in over cooking, the results were very low. Also the results of cohesion were much better when using the method of over cooking with sericin arrestive agent than that of incomplete cooking with sericin agglutinating agent. 3. Reeling of cocoon A) When the temperature of reeling bath was 25-45℃, the results of cohesion test were much better, but at the temperature below 25℃ or above 45℃, the results became worse. B) With out the process of croissieur, the results of cohesion were too bad, but in case of croissieur more than 1cm, cohesion became better rapidly. Further more, we understood that the results of cohesion were improving slightly with longer length of croissieur. C) When the velocity of reeling was increased, the results of cohesion also improved. The best results were shown when reeling velocity was 180-220 r.p.m. But when the velocity was increased more than 220 r.p.m., the results of cohesion got worse more or less. D) When the temperature of the drying pipe in reeling machine was raised, the results of cohesion also showed a tendency to improve. 4. Re-reeling A) We could net reach a conclusion as to have correlation between the number of dipping repeat in vacuum tank and the results of cohesion before re-reeling process. B) When we used Seracol 500 as an agglutination protective agent with l/1000 to l/2000 of water, the results of cohesion test were better. C) When we used Pearl-lite as an agglutination protective agent with 1/1000 to 1/2000 of water, the results of cohesion were considerably better. D) We gained tile best results when used Cohesion Improving Chemical, A-80, with 500-1500 times diluted. E) Results of cohesion was improved when humidity was low or temperature was high in the rereeling machine. 5. Filature water A) The water pH near the isoelectric point of protein showed the best cohesion, but the farther water pH, the worser results were obtained. B) With the increasing of M-alkalinity in filature water, the results of cohesion were worse. Above all, we understood the tendency of the results of cohesion get worse when the M-alkalinity is increased above 200 ppm. C) By increasing the total hardness of the filature water, it improved the results of cohesion. Especially, when the total hardness was above 300ppm, the results were extremely high. 6. Effects combination of each results A) The result of effects combination in filature processes with the obtained best conditions was distinctively improved. But the results could not reach in mathematicaly double effect. When reelied under worse conditions, the results of cohesion test were too bad. There was "effect limit" for the promotion. B) Generally the results of cohesion were bad when the filature conditions(the temperature, pressure and the properties of water, etc) are processed as sericin loss to be high. On the other hand, the results were very good when lower sericin loss was controlled in filature conditions. C) When filature conditions such as reeling velocity and croissieur length provide pysical cohesion ability and when raw silk dry fast during reeling and re-reeling, we found the result of cohesion was better. 7. Correlation of silk testing items. A) A negative correlation exists between the results of cohesion test and cleanness defect. Another word, the result of cohesion test was found to be
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