While working in the garment industry for many years I observed that this technique is key in the manufacturing process.
In production clothing manufacturers have to rely on accuracy and speed so the production process is set up in a way that the “units” of a garment are never double handled.
When heat setting interfacing to cut pieces of fabric the fabric itself may shrink, warp or distort – so matching small pieces of interfacing to small cut pieces of fabric can be prone to error. All pattern pieces that require fusing (interfacing) can use the following method.
Below are 2 images from my layouts ( markers) provided in my PDF patterns – the considered lay of the patterns should allow you to set aside a largish piece of fabric for the block fusing. The process is quick and easy.
This is an example of the Jenny Wrap Dress layout.
This is an example of the Julie Blouse layout.
Once you have cut your main pattern pieces you then take your “block” of fabric and cut out a matching size of fusible interfacing.
Iron on ( fuse ) your interfacing at the recommended heat setting for your fabric and interface.
Once the “block” of fabric has been fused, refold/position your fabric and relay your pattern pieces. Cut out usual.
That’s it !!!…..Simple isnt it !!!.
Cheerio and all the best.