Processing the belt using grosgrain tape and a hidden fastener is a classic technology used in sewing premium quality trousers for men and women. The grosgrain tape prevents the waistband from twisting and stretching, and hidden fasteners (trouser hooks or hidden buttons) ensure that the front of the trousers is perfectly smooth without unnecessary protruding elements.
Contents of the article
Preparation of parts and selection of materials
For high-quality processing you will need: a belt piece made of the main fabric, adhesive dublerin, high-quality dense grosgrain tape (rubberized or with silicone stripes to prevent the shirt from straightening), metal trouser hooks on plates or flat hidden buttons.
- Belt detail:Cut out with 1 cm allowances along all cuts. The length of the belt is equal to the waist circumference plus the fastener allowance (3-5 cm) and seam allowance.
- Grossage ribbon:Selected according to the width of the finished belt (usually 3.5–4 cm).
- Dublerin:Hard or medium adhesive material for complete fixation of the outer belt.
Step 1: Duplicating and Stitching the Outer Waistband
Completely duplicate the belt detail from the wrong side with dubbing tape. Iron the waistband in half lengthwise, inside out, forming a crisp top fold.
Place the outside of the waistband against the top edge of the trousers, right side to right side, matching the notches of the side seams and the middle edges. Sew the waistband with a 1 cm wide seam, strictly maintaining parallelism to the top fold.
Step 2: Installing a Concealed Trouser Fastener
Before sewing up the ends of the belt, install the metal trouser hook and loop-plate on the protruding ledge of the belt (codpiece and slope):
- Installing the Hook: Mark the installation location on the inside of the waistband ledge. Pierce the fabric with the teeth of the hook, put on the metal counter plate from the inside and bend the teeth in opposite directions.
- Installing the loop: Fix the mating part of the fastener at the opposite end of the belt so that when closing the front edges of the trousers meet exactly butt to butt.
Step 3: Stitching the grosgrain and finishing
Cover the seam allowance with grosgrain tape. Sew the grosgrain ribbon to the inner seam allowance of the waistband at the edge (1-2 mm from the edge of the ribbon).
Fold the waistband along the top fold to the wrong side. Grind the ends of the belt, turn out the corners and straighten them with a peg. Secure the grosgrain tape on the wrong side by placing a stitch exactly in the seam of the waistband on the front side (“seam to seam”) or fasten it with blind stitches by hand.
Tailor's advice
To prevent the belt from “pulling” and deforming the upper section of the trousers when worn, be sure to usenarrowing the belt along an arc: before stitching, slightly pull the lower section of the belt with an iron and steam and narrow the upper fold. Checked ready-made patterns from our catalog will help you calculate the exact allowance for the fastener and the ideal length of the belt.
Frequently asked questions (FAQ)
What is the difference between a grosgrain ribbon and a regular double tape?
The corsage tape has a multi-layer structure with longitudinal rigid ribs (sometimes with rubberized strands), which prevents the belt from being crushed under the influence of the belt or when the body is bent.
Can a hidden button be used instead of a trouser hook?
Yes, in this case, a secret loop is sewn from the inside of the slope, and a flat button with two holes is sewn onto the inner belt.
How to process a belt if the trousers are wider than the waist due to darts and folds?
All folds and darts on the trousers must be completely tucked in, ironed and secured with an auxiliary stitch along the top edge before attaching the waistband.
Expertly designed patterns are the key to a perfect fit of any product. To be the first to learn about the intricacies of design, modeling and trends in the sewing world, subscribe to our video channel Pattern - Ready-made patterns.
