Sewing is a versatile craft that allows you to create all kinds of garments, accessories, and home décor items. One essential element that elevates your sewing projects is the use of interfacing. Interfacing provides additional structure, stability, and support to specific areas of your fabric, such as collars, cuffs, waistbands, or button plackets. Understanding how to properly select and use interfacing can significantly improve the quality and durability of your finished piece. In this guide, we'll walk you through everything you need to know about using interfacing in sewing projects.
How to Use Interfacing in Sewing?
Understanding Interfacing: Types and Uses
Before diving into the application process, it’s important to understand the different types of interfacing available and when to use each. Interfacing comes in various weights, textures, and compositions, each suited for different purposes.
- Woven Interfacing: Made from woven fabric, this type offers a stable, drapey finish that works well with lightweight fabrics. It provides strength without stiffness.
- Non-Woven Interfacing: Made from bonded fibers, this type is unstructured, easy to cut, and offers a crisp finish. It is ideal for projects requiring more stiffness.
- Fusible Interfacing: Has an adhesive backing that bonds to your fabric when ironed. It’s quick and easy to apply and is available in both woven and non-woven types.
- Sew-in Interfacing: Does not have adhesive and must be sewn into your project. It provides a more flexible and natural finish, suitable for delicate or lightweight fabrics.
Choosing the right type depends on your fabric, project purpose, and desired finish. For example, a shirt collar might benefit from a lightweight fusible interfacing, while a handbag with structured sides might require a heavier, sew-in interfacing.
Preparing to Use Interfacing
Proper preparation ensures the best results when applying interfacing.
- Choose the Correct Interfacing: Match the weight and type of interfacing to your fabric and project requirements.
- Pre-wash Your Fabric and Interfacing: Wash and dry your fabric before cutting to prevent shrinkage after application. Similarly, pre-wash the interfacing if recommended by the manufacturer.
- Read the Manufacturer’s Instructions: Always follow specific guidelines regarding temperature, pressing time, and whether the interfacing is fusible or sew-in.
- Cutting the Interfacing: Cut your interfacing pieces precisely, mirroring your fabric pattern pieces, and add seam allowances if necessary.
Applying Fusible Interfacing
Fusible interfacing is popular for its ease of use. Here’s a step-by-step process to apply it correctly:
- Position the Interfacing: Place the interfacing on the wrong side of your fabric, aligning it with the pattern piece. The adhesive side should face the fabric.
- Set Your Iron: Use a dry iron set to the temperature recommended by the interfacing manufacturer. Avoid steam unless specified.
- Press, Don’t Slide: Gently press the iron down onto the interfacing for 10-15 seconds, applying even pressure. Do not slide the iron back and forth, as this can cause shifting or wrinkling.
- Check Adherence: Lift the iron and check if the interfacing is securely bonded. If not, repeat the pressing process, ensuring full contact and sufficient heat.
- Allow to Cool: Let the interfacing cool before handling to ensure the bond sets properly.
Tip: Use a pressing cloth or a piece of scrap fabric between your iron and the interfacing if you’re concerned about shiny marks or sticking.
Sew-in Interfacing Application
Sew-in interfacing requires a different approach since it doesn’t have an adhesive backing. Here’s how to incorporate it into your project:
- Pin or Baste: Place the interfacing on the wrong side of your fabric, aligning it carefully with your pattern piece. Secure with pins or baste stitches along the edges.
- Stitching: Sew around the edges with a straight stitch, leaving a small seam allowance. For added stability, sew parallel rows or zigzag stitches across the interfacing area.
- Pressing: Iron gently to flatten seams and ensure good adhesion between fabric and interfacing. Use a pressing cloth to prevent shiny marks, especially on delicate fabrics.
Sew-in interfacing offers a more flexible finish, making it ideal for projects that require drape or softness, such as lightweight blouses or scarves.
Tips for Optimal Results
- Test First: Always test the interfacing on scrap fabric to see how it reacts to your pressing temperature and method.
- Use the Correct Iron Settings: Too much heat can scorch your fabric or cause the interfacing to warp. Adjust the temperature accordingly.
- Handle Carefully: Avoid stretching or pulling the fabric during application to maintain proper shape and alignment.
- Edge Finishing: For clean edges, consider serging or finishing seams after attaching interfacing to prevent fraying.
- Storage: Keep unused interfacing flat and in a cool, dry place to prevent warping or damage.
Common Mistakes to Avoid
To ensure a professional finish, steer clear of these common pitfalls:
- Using the Wrong Type of Interfacing: For delicate fabrics, avoid heavy or stiff interfacing that can alter the drape.
- Not Pre-washing: Failing to pre-wash can lead to shrinkage and puckering after application.
- Incorrect Iron Settings: Excessive heat can damage your fabric or cause shiny marks.
- Over-Pressing: Applying too much pressure or pressing for too long can distort fabric or cause interfacing to peel away.
Summary of Key Points
Using interfacing effectively can dramatically improve the structure and finish of your sewing projects. Remember to select the appropriate type based on your fabric and project needs, prepare your materials properly, and follow manufacturer instructions for application. Whether you’re applying fusible interfacing with a hot iron or sewing in a more flexible sew-in type, careful handling will ensure a polished, professional result. With practice, incorporating interfacing will become a seamless part of your sewing routine, elevating your craft to new levels of quality and durability.