The Effect of Reusable Bag Type on Tensile Strength, Liquid Retention, Stability, Washability, Compactness, and Capacity

Overview

Objectives/Goals The objective of this investigation was to deduce which reusable grocery bag was the most suitable replacement for a standard paper bag. This was determined through a serious of six tests, which took place over the course of two months. Methods/Materials Seventeen reusable grocery bags were collected, which varied in fabric, make, and design. These bags were tested to determine if they would withstand the maximum 30 lb. weight given in tensile strength (machine used), retain liquid without leaking, be stable in a moving automobile, wash without wear to the bag, compact into a small form, and have a great capacity. These aspects were individually investigated through six in-depth tests. Tensile Strength: 100 lifts each, with varying weight loads, 5 trials. Liquid Retention: 57 grams of liquid in each bag, 15 minute duration, 5 total trials. Stability: 10 defined maneuvers in a moving vehicle, avg. 1:12 min each. Washability: wash and dry per instructions, 5 trials. Compactness: 8 different size drink cups, bags compacted to fit with lid secured. Capacity: 6 distinct trials, different grocery item groupings. Results The results of the data collected showed that bags A-O consistently tested predominately over the standard paper bag. Although one single bag did not prevail in every test, the majority proved to be efficient, and consumer friendly. The three leading reusable grocery bags were the iTySE Ripstop Bag, the OBOE Pongee Poly Bag, and the ACME Bag Earthtote. These bags all prevailed in four out of the six tests. Conclusions/Discussion Much was learned from this experiment. It is evident that single-use grocery bags have a terrible effect on the environment. Not only are they a large danger to the natural world, but also destroy many valuable resources. If shoppers convert to using any one of these bags tested (except the paper and plastic bags), millions of paper and plastic sacks will be kept out of landfills. Therefore, it is very important that consumers adopt a new habit, and make the switch from single-use shopping bags, to reusable ones. They are not only a smarter choice for the environment, but also prove a more efficient one.

Awards (1)

• First Place

Competition history

• CSEF 2010 Product Science (Physical) (Junior Division Only) · Entry J2203

Resources

• CSEF project summary ↗

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