The Statistical Analysis of Raw Silk Quality Control in Korea

우리나라 생사품질관리의 통계적분석

  • Published : 1975.06.01

Abstract

This report was aimed to examine the status of raw silk quality and to come up with means of the good quality silk production by use of the statistical quality control method. The results obtained are as follow : 1) The raw silk quality of size 20/22 denier was found to be 2A grade during the last five years. 2) In order to level up the silk grade, the better quality control is required especially in the average evenness and cleanness. 3) It was found that winding brakes and elongation of silk threads have been versed gradually through the period. 4) Larger variation was observed in cleanness control chart, but low evenness have stayed with in the desirable control range.

우리나라 생사의 품질수준을 통계적 관리법으로 분석하여 다음과 같은 결과를 얻었다. 1. 우리나라제사공장의 생사제조에 있어서의 품질관리법으로서는 2A격 이상의 생사를 생산할 수 없었다. 2. 생사의 품질을 향상시키기 위하여서는 사조반평균점과 대중절점을 중점적으로 관리하여야 한다. 3. 생사검사항목별로 볼 때에 재조와 신도성적은 매년 악화되어 가고 있다. 4. X-$\sigma$관리도로 볼 때 사조반열등점은 안정화되어 있으나 대중절점은 불안정한 상태로서 그의 편차의 변동범위가 컸었다.

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