Typically a contrasting color, such as orange, is used for topstitching denim. But keep in mind that lighter denim can be used to make more flowing clothes, such as wide skirts, loose dresses, and buttons. Denim needles are specially designed for piercing multiple layers of thick fabric.For lighter denim, you can use the smaller one (90/14 size), but for heavier denim, 100/16 or 100/18 is better. As usual, choose a higher number for thicker fabrics (layered seams, such as seams with flat seams), and vice versa.If that's not enough, try lowering the presser foot pressure (if you're fortunate enough to have this adjustable setting) and / or try a Teflon foot (for vinyl, for example) to help the fabric advance smoothly without (or less) friction. Another solution is the movable foot, which can help your top layers pass over the sewing foot at the same time as the bottom layers, just over the feed combs.Make sure you are not pulling the fabric through the machine as (since it is stretch denim) you can end up with extra long seams. So, pull the jeans as hard as possible, release them and repeat about five times on each leg. No, this tip doesn't tell you to make denim through a foam rolling routine - it's a little smarter than that.To pull jeans on your hips, famed stylist Amber Alexandria recommends putting your jeans on a table first. When they are completely wet, strategically pull the fabric into the areas you want to stretch.Then, just in case, put on wet jeans and wear them until they dry. Relax in a hot bath, but not a hot one, for about 15-20 minutes, Guadara teaches, and then air dry them. Take a spray bottle, fill it with hot water and steam it liberally from front to back, says Katy Brown, owner of Rytina Fine Cleaners.They shrink a little in many cases, but the prewash also softens the fabric a little - the more you wash them, the softer they become. It is always a good idea to wash new denim yourself, otherwise there is a high chance that some of the color will leak out and transfer onto other clothes. Like cotton fibers, denim shrinks when washed and can sometimes even be dyed.Denim is a tough and durable fabric. The main problem when sewing is the thickness of the fabric, so you need to choose the right suit for the job to ensure success. Denim is not the easiest material to process. You can use small pieces to practice cutting; use a seam opener and conduct a stitch test to determine its appearance, the correct tension, and the best stitch length. Use strong denim needles (usually sharper) to sew thicker fabrics.If you're new to stretch denim, start with lighter fabrics. When sewing stretch denim, treat it as normal fabric and use straight stitches. SEAMS - When sewing denim, select a seam that matches the style and weight of the denim being used.Stretch denim treatment: When you work with stretch denim, you still treat it like a regular fabric. The main thing to remember is that the fabric will stretch and stretch slightly when worn. This means that after the fabric has been stretched, it returns to its original shape. This is a standard trick with stretch denim jeans, and when worn a couple of times, they stretch and stretch.Well, it doesn't look the best, but denim fibers are easier to stretch when wet, and when worn, they will stretch exactly where you need it most. However, if the jeans are too tight, wear them when they are wet and move them naturally to stretch the fabric. When I make some jeans before using stretch denim, I make sure in the assembly stage that they are very good, fit and fit, because I know that as long as I put on the jeans, the fabric will relax and stretch slightly.Unfortunately, this fabric is made of 100% cotton denim, and no matter what you do, it is always stretchy. Since it has no elasticity during the production process, this means that the cotton thread will swell and will never return to a smaller size than before. Jeans with 2% spandex or Lycra may be more comfortable at first, but stretch faster than cotton.Each type of jeans hangs differently, so your size may vary from one type or brand to another. Your model will likely require stretch denim as needed, such as skinny or fitted jeans. I would stick with a fabric with the same stretch percentage, but keep in mind that you may have to make a few minor adjustments when you get to your actual jeans.When people say, I make muslin for my jeans, they do not necessarily mean that they are using an inelastic plain weave cotton fabric (known as muslin). Once you get it down, the term denim will encompass a wide variety of fabrics of varying thicknesses and uses, so it's worth making sure you have the right type of denim to get the garment you want.Since there are so many different types of denim on the market, how do you know which one is best to buy? When looking for the best jeans, it is important to pay attention to fit and quality. If you want jeans that fit perfectly, check out the meaning of different denim fabrics and how/whether they stretch below.I've only talked about denim here, but you can certainly use another twill or corduroy fabric with the required elasticity and density. Check out most of the fabric sewing supplies and you're sure to find a piece or two of denim. Now that you know all about sewing denim, take a look at these other fabrics, listed in alphabetical order. Thick denim garments created using various types of stretch denim.The first and most important material for stretch jeans is, of course, denim. The elasticity of the fabric is a decisive factor in determining the fit of jeans. The Liana Stretch jeans have been designed using a lighter fabric with 20% to 25% elasticity.However, when you make a try-on garment (we will do it in Sewalong), you need to use a fabric with the same elasticity. I found that denim with 2% to 3% Lycra can stretch by 20-25%, but this is not always the case. Again, you should test these fabrics to make sure they stretch on the 4 sides you want.