The product strength analysis of woven bag made from recycled mineral water plastic cups based on the polypropylene content

Abstract

Key words: woven bag, green manufacturing, tenacity, plastic wastes The increasing amount of plastic wastes has become a threat to the sustainability of all ecosystem in this Earth. This paper aims to provide an alternative utilization of plastic wastes as the raw material in the manufacturing process of woven bag products with a quality control in its tenacity. The initial phase of this research is a literature review on the concept of green manufacturing, woven bag quality, compositions of plastic wastes and woven bag manufacturing proses. Furthermore, it is followed by a data measurement in a form of tenacity test using a thread test gauge (tenacity). There are two types of the condition in the manufacturing process of woven bag production compared by increasing the temperature as much as 10°C in all the extraction machines. The measurement result shows that the average tensile strength in the production process of the woven bag made from the wastes of mineral water plastic cups with 10% composition and extraction temperature for the first condition is 3.38 g per 1 denier and the second condition is 4.76 g per 1 denier. The result of second condition manufacturing (increasing the extraction temperature by 10°C) after comparing it with the quality required by Standard National Indonesia (SNI) as much as 4 to 6 g per 1 denier is considered good quality. Therefore, through the concept of green manufacturing, the utilization of plastic wastes might provide a substitution to the part of plastic core raw material in the woven bag production. This research is designed to be the beginning of innovation to acquire raw materials for the woven bag, furthermore, the optimization toward the machine setting and innovation on plastic wastes raw materials become the foundation in increasing the tenacity.