Sewing A Tank Top: Mastering The Armhole Curve

how to sew hrm for tank top

Sewing a tank top is a great beginner project that requires only basic sewing skills and a few simple steps. You can draft a pattern from an existing tank top or create one from scratch using your measurements. Once you have your pattern, choose a fabric with some stretch, such as cotton or linen, and cut out your pieces. Then, it's just a matter of sewing the pieces together, hemming the raw edges, and adding any desired finishes, like a pop of colour with a contrasting bias tape. With the right tools and a bit of creativity, you'll be well on your way to sewing your own tank tops in no time!

Characteristics Values
Sewing machine Required
Fabric 2/3 to 1 yard of knit fabric with at least 50% stretch
Bias tape 1/2" wide double fold bias tape, about 1 1/2 yards of it
Sewing supplies Scissors, pins, thread, etc.
Sewing pattern Available online or can be self-drafted
Sewing process Cut pattern, stitch shoulder straps and side seams, steam iron bias tape, stitch bias bindings on

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Drafting the pattern

To draft a pattern for a tank top, you can start by tracing an existing tank top that fits you well. Place the tank top on top of your chosen fabric, lining up the shoulder seams. Use a chalk pen or erasable pen to trace the armhole, and then cut it out. You can also cut the sleeve off outside the sleeve seam, leaving about a 1/4-inch seam allowance. This will give the armhole a little reinforcement and feel like you've added binding to it.

If you don't have an existing tank top to use as a template, you can measure the desired width of the armhole and mark it on your fabric. Cut the armhole, starting at the shoulder seam and going down to the side seam. Remember to add a seam allowance to your measurements.

Once you have cut out the armhole, you can finish it with a rolled hem. Fold the fabric edge over the sleeve seam (about 1/4 inch) and then fold it over again. Sew along the folded edge, using a straight stitch, to secure the hem in place.

If you want to add binding to the armhole, cut strips of stretchy knit fabric that are slightly shorter than the armhole measurement. Sew the strips together to form a ring, and then pin it to the armhole, starting at the side seam. Stretch the binding slightly as you sew it to the tank top. Fold the binding over to the wrong side and stitch it in place, enclosing the seam.

Tips for sewing knit fabrics:

  • Use a ballpoint needle or a stretch needle for sewing knit fabrics.
  • Set your sewing machine to a slightly longer stitch length to allow for stretch.
  • Use a zig-zag stitch or a serger to finish the seams and prevent fraying.

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Sewing the tank top

Sewing a tank top can be a fun and rewarding project. Here is a step-by-step guide to help you get started:

Planning and Preparation:

Before you begin sewing, it is important to have a clear plan and gather the necessary materials. Decide on the style and fit of your tank top and choose a suitable fabric. You will need a sewing machine, thread in a matching colour, pins, scissors, and chalk or a pen for marking. If you are using a pre-existing tank top as a template, have that ready as well.

Cutting the Fabric:

Start by placing your tank top on a flat surface, wrong side out. If you are using a template, lay it on top, lining up the shoulder seams. Use your chalk or pen to trace the armhole of one side of the shirt, and then cut it out. Fold the shirt in half, matching the shoulder and side seams, and cut out the other armhole using the first cut as a guide.

Sewing the Armholes:

Now it's time to sew! With your tank top still wrong side out, fold the fabric edge over the sleeve seam (about 1/4 inch) and then fold it over again. Thread your sewing machine with matching thread and start at the underarm seam, sewing all the way around the armhole using a straight stitch. Repeat this process for the other armhole.

Finishing Touches:

Before cutting off any excess fabric, try on your tank top to ensure the armholes are to your liking. Adjust if needed, and then cut off any extra fabric. To prevent fraying, zigzag or serge the raw edges of the fabric. You can also add a rolled hem to the armholes for a neater finish.

Additional Customization:

There are many ways to customize your tank top further. You can add binding to the armholes and neckline, create a gathered shoulder effect, or even turn your tank top into a wrap-style top. Get creative and experiment with different techniques to make your tank top unique!

Tips and Tricks:

  • Always try on your tank top before cutting or sewing to ensure the best fit.
  • When in doubt, cut fabric pieces larger rather than smaller, as you can always trim them down later.
  • Use a chalk pen or erasable pen for marking to avoid permanent marks on your fabric.
  • Choose a stretchy fabric that is comfortable and easy to work with, such as jersey or ribbed knit.

With these steps and tips in mind, you are well on your way to sewing a stylish and comfortable tank top!

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Choosing the right fabric

When choosing the right fabric for your tank top, there are several factors to consider. Firstly, you'll want to select a fabric that is comfortable and breathable, especially if you intend to wear it during warmer months. Natural fabrics such as cotton or linen are excellent choices as they are soft, absorbent, and allow your skin to breathe. Cotton is also durable and easy to care for, making it a popular option for tank tops.

Another factor to consider is the weight and drape of the fabric. Lighter-weight fabrics such as cotton jersey or rayon challis are ideal for a flowy, airy tank top. They drape beautifully and feel lightweight on the body. If you prefer a more structured look, you could opt for a slightly heavier fabric such as cotton twill or a cotton-linen blend. These fabrics will give your tank top a more defined shape while still being comfortable to wear.

The amount of stretch in the fabric is another important consideration. If you want your tank top to have a snug fit, choosing a fabric with some elasticity, such as cotton with spandex, will ensure that it hugs your body comfortably. Stretch fabrics are also ideal if you plan to wear your tank top for workouts or other physical activities, as they provide ease of movement. However, if you prefer a looser, more relaxed fit, a non-stretch fabric like cotton lawn or poplin would be a better choice.

Lastly, consider the colour and print of the fabric. Lighter colours are generally better for warm weather as they reflect sunlight and help keep you cool. Darker colours, on the other hand, tend to be more flattering and versatile for various occasions. You can also have fun with prints and patterns to add a unique touch to your tank top. Whether it's a bold floral print or a subtle stripe, choosing a fabric with an interesting design can make your tank top stand out.

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Finishing the edges

Once you have the basic structure of your tank top, it's time to finish the edges. This will give your garment a neat and professional look. Here are the steps you need to follow:

  • Fold and press the raw edges: Start by folding the bottom hem of your tank top. Fold it up by 1/4 inch (0.6 cm), and then fold it again by another 1/4 inch so that the raw edge is enclosed within the second fold. Secure the fold with pins and press it with an iron to create a crisp edge. Repeat this process for the armhole openings and neckline as well.
  • Sew the hems: You can use either a sewing machine or hand stitch the hems in place. Use a straight stitch or a zigzag stitch, which gives the fabric more stretch and helps minimise fraying. Sew along the bottom hem, armhole openings, and neckline, using a seam allowance of no more than 1/4 inch (0.6 cm).
  • Alternative method with bias tape: If you want to add a pop of colour to your tank top, you can finish the edges with woven fabric bias tape. Cut a long strip of fabric that is 1" wide and line it up with the neckline, leaving about 1" of overlap on both sides. Sew the fabric strip to the neckline with the right sides together, using a very narrow seam allowance. Press the strip towards the inside of the tank and fold the raw edge in, enclosing it within the fold. Sew along the pressed edge and the folded edge to completely enclose the raw edges. Repeat this process for the armhole openings and the bottom hem if desired.

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Hemming the tank top

Firstly, fold and press the raw edges of the fabric. This includes the bottom hem, armhole openings, and neckline. Fold the edges by 1/4 inch, and then repeat this process by folding it again by another 1/4 inch. By doing this, the raw edge will be trapped inside the second fold. Secure the folds with pins and iron press them in place.

Next, pin the front and back pieces of the tank top together. Lay the front piece face-up and place the back piece face-down on top of it, ensuring that the straps, armhole area, and side seams are all aligned. The right sides of the fabric should be facing each other, while the wrong sides face outward. Make sure that the pieces are flat and the edges match all around, excluding the necklines.

Now, it's time to sew the pieces together. Machine stitch along the upper part of the shoulder straps and both side edges. Use a zigzag stitch instead of a straight stitch to give the fabric more stretch and help minimise fraying. A seam allowance of no greater than 1/4 inch is recommended.

Finally, hem the remaining raw edges. Machine stitch along the open bottom, neckline, and armholes, using a standard straight stitch and a seam allowance of no more than 1/4 inch. Sew around the entire opening, ensuring you do not stitch the front and back pieces together at this stage.

And there you have it! Your tank top is now hemmed and ready for the final touches.

Frequently asked questions

You will need a sewing machine, fabric, matching or coordinating thread, and a pattern.

You can create a pattern by tracing around a tank top that fits you well. If you are drafting the pattern from scratch, you will need to know your bust/chest measurement, armhole depth, neck depth, and neck width.

Natural fabrics like cotton or linen are good options as they are breathable. Your fabric should have at least 50% stretch and good recovery.

Place the front and back pieces right sides together and stitch across the shoulders and down the side seams using a stretch stitch.

You can finish the raw edges by folding and pressing the fabric. For the bottom hem, fold the fabric up 1/4 inch, then fold it over again by another 1/4 inch so that the raw edge is hidden. Repeat this process for the armhole openings and neckline.

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