Mylar is a type of plastic and is used for more than balloons. Keep in mind that if you're using iron on transfer sheets for light fabrics (the standard kind), you'll need to reverse the image or it will appear backwards. When printing with your transfer paper, you need the right kind of printer like an inkjet printer. Put the bag in the printer, opening side first. You can usually do this right from the print settings (reverse or flip horizontally). They are rather plain looking, but if you want to spice up their look a bit for a party or for your child to take to school at lunch, you can print on a paper bag to add a design to it. You have about a 3-4 inch overhang of paper facing upward that you will close up just as if you were wrapping a gift. Freezer paper (Hint: NOT wax paper, it’s too thin. Mylar can be used on computer displays, enhance glass properties, make paper products more durable and wear resistant. Once you've found an image to use, you'll need to print your image onto the iron on transfer paper. Make the document size the same size as the paper bag. Create the artwork or words you want to print on the bag. Paper bags come in two basic colors, brown and white. These Mylar balloons are pre-treated for printing. Many party planners will print families personal photos directly onto the Mylar for different celebrations. Step 3: Push print but be sure to change the setting on the printer for extra thick paper. If it's too large, select "fit to scale" in the print options, or scale it down in an image editing program. The tutorial is easy to follow and shows you how you can print on to paper lunch bags at home. The printer picked the paper up and started to print phew ok so far (thank god! The step by step guide will teach you how to make your own party bags and favor bags by printing directly on to them. At that small of a volume, I would think just about any desk top office color laser with a straight thru paper path would do the trick (Oki, HP, Cannon, etc.) I was able to find freezer paper at my local WalMart next to the Ziploc bags.) Paper bags are inexpensive items that are used for a variety of purposes such as children’s lunch bags, treat bags for parties and much more. A great tip is to feed one bag at a time in to your printer, sometimes these things have a habit of getting stuck, but if you are watching it you can guide it along. I like to do this by pushing in the sides of the paper and creasing the triangles of paper that are left sticking up, as shown in the above left image. Before printing, check the preview to confirm that the image fits onto your paper. The purpose of the freezer paper is to make sure ink doesn’t seep through the burlap and damage your printer. Print your design onto the paper. Step Six: Stand up your box so that the creased edge of the wrapping paper is facing down. Just make sure you feed it sealed-end first. Step 2: Tape down the opening and tape the flap of the paper bag to the side with the seam. I set the printer up on best quality print with the paper setting to normal and clicked the mouse to print. It may be frustrating, and, you may have to fight it, and, remove some jams, but, for only 50 finished bags, it's probably do-able.