All About Bag Interfacing | Tips & Types for Sewing Bags with Sara Lawson

All About Bag Interfacing | Tips & Types for Sewing Bags with Sara Lawson



let's take a tour of common interfacing brands and the key characteristics to look for for instance different manufacturers use different names for the same product in front of me I have a package of thermal web interfacing and they have called it fusible fleece Palin has a product that's almost exactly the same but they've called it thermal lam in addition to different names some companies use color coding to differentiate their products Thermal web uses purple packaging for fusible products and green packaging for soin products another manufacturer that uses color coding is Palin and Palin has a few different color options for their products first over here note the green packaging and Palin uses green packaging or labels for all of their fleece products in the middle I have the yellow packages and yellow packages are for heavy weight interfacing on the end I have a pink package and pink color coding is for light to medium weight woven interfacing and in the center here I have an orange package and that's for their fusible web so when you go to the fabric store oftentimes interfacing will be available on the bolt if you're looking for Palin products in the store you'll be able to note that color coding is also available on their bolt ends right here I have a bolt of Palin shaped flex and the name of the product is written right at the top in the largest letters underneath it gives you a little bit more information of what type of interfacing this is and this is a woven fusible interfacing in addition to the name and the type there's also some care instructions there so it will tell you how to wash and dry your fabric interfacing Ziff you can 100% cotton means this fabric is a natural material and there's also an item number for this product it's SF 101 some interfacing czar labeled by a number and son by the name some sewing pattern designers refer to that number in their pattern instructions and some will refer to the name so it's helpful sometimes to know both bosal is another manufacturer of interfacing x' and I brought with me today there bosal foam fusible interfacing and also bosal poly therm fleece which is an insulated fleece fast diffuse is also another manufacturer and here is their medium weight woven interfacing and a craft weight interfacing if you're purchasing a packaged product at the store the care instructions will be on the back of the package however if you're purchasing interfacing by the yard normally within the bolt is tissue with care instructions for your interfacing and I find it helpful especially when you're new to an interfacing to clip a little piece of the tissue with the care instructions right on top of a piece of interfacing that way when you're ready to use the interfacing the care instructions are right there and also if you forgotten what type of interfacing it is that all that information will be right on that tissue I've assembled this interfacing charm pack for when I speak to quilt guilds and you can do the same at home every time you purchase a new interfacing at the store add it to the list and insert it inside your packet and before long you'll have a charm pack just like I have right here speaking of which in your class materials you'll find an interfacing comparison chart that you can use in conjunction with this charm pack it'll make you a more informed interfacing shopper it's important to test the interface and you want to use to be sure you'll get the desired result interfacing changes the hand of the fabric no matter what some fabrics are too thick to sew when combined with interfacing I have this piece of faux leather in front of me and I fused a piece of heavyweight interfacing to the back and as you can see this becomes very stiff you might think just one layer of the leather with the interfacing should be ok to get through your machine but just imagine if you're sewing a bag you'll actually be sewing two layers of leather and two layers of interfacing just for one seam if you're sewing a side panel to the front of the bag and I think most home sewing machines will have a large amount of difficulty sewing all this fabric and interfacing together if you're working with thicker materials like the leather or with the tapestry fabric like I have here you might want to consider instead using a fusible fleece instead of a heavyweight interfacing this will make it much easier for your needle to get through all the layers it's really important to test your fabric and interfacing before beginning on your project I have sort of a funny story to tell I taught a class once where everybody came to class with all their fabric and interfacing pieces cut out and prepared and upon walking around the room I saw that one of the students had pieces that were much smaller than everybody else's and through some questioning I found out that she was using an inexpensive red quilting cotton and the quilting cotton had shrunk while she was ironing and fusing her pieces so you want to make sure you test everything before starting on your project because if she had tested she would have seen that the fabric shrunk with the steam of the iron and she could have made some adjustments such as ironing the whole entire piece of fabric before beginning so test test test so I have another piece of fabric in front of me and I fused this to a fusible peltex product and just imagine you're sewing a bag you're turning your bag right side out through the opening and through in through the opening in the lining at the very end and your exterior fabric looks like this my sample ended up crinkly and so I this about five times and it still looks kind of unattractive so one solution to this problem is test your interfacing first you'll find out there's an issue and you can adjust and choose another interfacing instead and we'll talk more about this a little bit later interface things also come in two different colors white and black so I have a white on white fabric in front of me and I've basted it to a black interfacing and as you can see my white fabric now looks gray if you're using a light-colored or a white fabric you want to make sure you're using a white interfacing and if you're using a dark fabric such as a batik or something with jewel tones in it a black interfacing might be the choice for you so decide what fabric you want to use and choose the correct color of interfacing you

19 thoughts on “All About Bag Interfacing | Tips & Types for Sewing Bags with Sara Lawson

  1. Please change the title, it's misleading. There's no information on what interfacing to actually use when making bags. This has only general tips on how to use interfacing. It advertises a class where you can get the info the title actually refers to.

  2. I use paper clips to clip the interfacing instruction to the interfacing – it's less bulky – these go in my box for small amounts. For larger amounts I relabel empty fabric bolts. I'm converting new a new way for large amounts: I've been getting discarded upholstery tubes. I cut them in half and store them in a tall rattan laundry basket. I punch a small hole in the top and attach an old-fashioned craft paper label. The tubes are easier to remove and return to the basket, more fits in the basket, and the interfacing is not folded.

  3. I've been wondering if Pellon uses color to differentiate between fusible and non-fusible. So far, I have only discovered color to indicate weight and woven/non-woven.

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