Sewing bias tape is a fundamental skill for adding professional finishing touches to your sewing projects. Whether you're binding the edges of a quilt, creating decorative trims, or finishing garments, understanding how to sew bias tape properly can elevate your craftsmanship. Bias tape, made from strips cut diagonally across fabric, offers flexibility and a smooth, clean finish that straight-cut fabric edges can't match. With a little practice and attention to detail, you can learn to sew bias tape seamlessly, giving your handmade items a polished and professional appearance.
How to Sew Bias Tape?
Learning how to sew bias tape involves understanding how to prepare the tape, attach it properly, and finish the edges neatly. Here are step-by-step instructions and tips to help you master this useful technique.
Preparing Bias Tape
- Cutting the Bias Strips: Begin by cutting fabric diagonally across the grainline at a 45-degree angle. Use a rotary cutter or scissors for precision. The strips should be about 2-3 inches wide, depending on your project. The wider the strip, the more flexible and easier it is to fold and sew.
- Joining Multiple Strips: If your project requires longer bias tape, join strips end-to-end with diagonal seams. Place one strip right sides together at a 45-degree angle, sew across the diagonal, then press the seam open. Trim excess fabric close to the seam to reduce bulk.
- Pressing: Fold the strips in half lengthwise with right sides together and press to create a crease. This fold will serve as your sewing guide and help in folding the tape around edges.
Tip: Use a rotary cutter and cutting mat for precise, clean cuts. Accuracy in cutting ensures the bias tape will sit smoothly when sewn.
Attaching Bias Tape to Fabric
- Positioning the Tape: Place the raw edge of the bias tape aligned with the raw edge of your fabric. Pin or clip the tape in place, making sure the fold line is open if you're folding the tape over the edge later.
- Pinning and Ease: For curves or rounded edges, pin the bias tape carefully, easing it to fit smoothly. Use plenty of pins or clips to prevent puckering.
- Sewing the Bias Tape: Use a sewing machine with a standard straight stitch. Sew close to the inner folded edge of the bias tape, typically about 1/8 to 1/4 inch from the edge. For curved edges, sew slowly to maintain control and avoid puckering.
Tip: Use a longer stitch length (around 3.0 mm) for better control and easier pressing afterward.
Folding and Finishing the Bias Tape
- Folding Over Edges: Once sewn to the raw edge, fold the bias tape over to the underside of the fabric, enclosing the raw edge completely. Use clips or pins to hold the fold in place.
- Topstitching: For a neat finish, topstitch about 1/8 inch from the edge of the folded bias tape on the right side. This secures the fold and adds decorative detail.
- Hand Finishing: For delicate projects or curved edges, you may prefer to hand sew the bias tape in place using slip stitches for a nearly invisible finish.
Tip: Use matching thread for a seamless look or contrasting thread for decorative accents.
Special Tips for Sewing Bias Tape
- Handling Curves: When sewing around curves, ensure your stitches are slow and steady. Slightly clip notches into the seam allowance of the bias tape (without cutting through the stitching) to help it lie flat around tight curves.
- Using Bias Tape for Binding: When attaching bias tape as a binding on quilts or garments, miter corners for a professional finish. To do this, fold the tape at a 45-degree angle at corners, then fold it over the edges as usual.
- Choosing the Right Bias Tape: Select bias tape in colors and widths suitable for your project. Pre-made bias tape is available in various colors, but making your own allows for custom widths and fabric choices.
- Pressing is Key: Always press your bias tape well after each step. Proper pressing helps it hold its shape and makes sewing smoother.
Common Mistakes to Avoid
- Poor Cutting: Irregular strips or uneven cuts can make sewing and folding difficult. Take your time with accurate cutting.
- Incorrect Pinning: Not pinning or clipping enough can cause puckering or misalignment, especially on curves. Use plenty of pins for smooth results.
- Not Pressing: Skipping pressing steps can lead to uneven, bulky, or puckered bias tape. Always press after folding or sewing.
- Forcing the Tape: Forcing bias tape around tight curves without clipping or easing can cause ripples. Use small clips and ease fabric gently.
Summary: Mastering the Art of Sewing Bias Tape
Sewing bias tape is an invaluable skill that enhances the finish and durability of your sewing projects. The key steps involve careful cutting on the bias, pressing to create clean folds, precise pinning and sewing along raw edges, and neatly folding and topstitching the tape over raw edges. Remember to handle curves with care, clip notches for smoothness, and press thoroughly to achieve professional results. Whether you're finishing a quilt, binding a garment, or adding decorative trims, mastering the technique of sewing bias tape will elevate your sewing craft and give your projects a refined, polished look.