Hi there. As one or two people showed an interest in fusing plastic I thought I would do another post about it. I've made another bag, this time using plastic I got from the Scrapstore when it closed down. You could use any plastic bags you have, the bigger the better. I have been experimenting with charity shop bags, but as these are mostly made from biodegradable material now, with very little plastic content, they don't stick together very well. Here I have sheets of red, and one large, clear plastic bag.
Put your paper on top and bottom, have iron on hot, and quickly iron all over it, pressing down hard. My baking paper isn't big enough to cover the whole thing, so I peel it off while still warm, and reposition it over the bits around the edges which I have missed. It only takes a few seconds, peel the paper off when still warm and check that all of the plastic has fused evenly with no big bubbles in it. It will be crinkly, that's fine, but if you iron for too long the piece will become too distorted to use, you need it to stay flat. Always work in a well ventilated area and iron at arms length, open doors and windows. Melting plastic can be dangerous.
Then I made a second piece with no decorations on it. Trim the edges on both pieces with a knife and a straight edge like a ruler, you don't need to measure them. Put them together, outsides facing in and make sure the edges match up all the way round, trim if needed.
You can use more layers for a stiffer piece, but then you might not be able to get it through the sewing machine. Or you could use less layers if you wanted to make a lightweight bag. Experiment and find the best solution for yourself. Half the fun of it is creating something different, and unique, something no one else has. Have fun playing :o)
5 hours ago