RESEARCH ON ANALYSIS OF OPERATION PROCEDURES AND OPTIMISATION OF PERFORMANCE TIME FOR SEWING OPERATIONS OF KNITTED PRODUCTS

Abstract

The paper presents the results of the study proposal of operating procedures
and time for some preparation operations of knitted products based on MTM
standard time analysis method and predetermined time system GSD (General
Sewing Data). In order to eliminate unnecessary useless operations and shorten the
production time of sewing operations in the industry, the authors have conducted a
study of the simultaneous effects of organisational factors such as the distance to
place the sewing element, the size of the sewing element and the number of
element layers on time of sewing operations of knitting products. In the study, we
used the experimental planning method and multivariate optimization to design
experiments, process and analyse experimental results. The results identified the
optimal value of organisational factors to achieve the goal of minimizing the
performance time for sewing operations of workers, contributing to improve labor
productivity and the production efficiency in Vietnam's garment industry.