I have slacks that need shortened and they have cuffs
Properly hemming slacks usually requires hand sewing to create something called a blind hem stitch, though there is a way to use your sewing a machine for a version of a blind hem, check out this instructable: https://www.instructables.com/id/How-to-do-a-Blind-Hem-Stitch-on-your-Sewing-Machin/. Here are two Instructables that show stitches that will work for hemming: https://www.instructables.com/id/Hand-Sewing-Basic-Slip-Stitch-Blind-Stitch/ and https://www.instructables.com/id/Professional-Hemming-By-Hand-Pants-Skirts-Jacke/
Select as Best AnswerUndo Best Answer
I think that's a project that goes a little beyond the scope of this class because hand stitching is preferred, but it's not really difficult if you have a little patience and keep careful notes of the measurements as you go along. Decide what the finished length will be and then be sure to add enough for the depth of the cuff and the hem that will be folded to the outside to make the new cuff. First, if the cuff is tacked in place (usually at the seam) snip that small stitch so you can unfold the cuff. Before you iron out the old folds, measure and write down the distance between where it was folded and where the bottom of the pants are with the cuff unfolded. Then measure (on the inside) and write down the current depth of the hem. Now you can unstitch the existing hem. If you want the finished length to be 2" shorter, that's how much you will cut from the bottom. Then create a new hem the same depth as the original hem and cuff it up the same amount as before. Iron up the cuff. Tacking it at the seams would be your last step. Careful ironing is the most important step before stitching any hem. Then the hardest part about hemming pants is making sure you don't do the same leg twice. ;o)
Small hack for sharp, professional pressed creases and cuff hems:
Fill spray bottle with 3/4 water, add white vinegar to top. Spray fabric to be pressed.
Place brown, paper sack between iron set for fabric type and fabric. Press as usual till dry.
Good idea to test vinegar + water on scrap of material first.
Using same process will effectively remove hard press crease lines in most fabrics also. Use patience. I did alterations for 25 years. IF you do error and shorten ladies jackets sleeves, doing one sleeve twice, and depending on the style, do the other one likewise for a 3/4 sleeve look. Duh -- don't ask how I know. GURANTEE,: You'll only make that error one time.
since the cuff will cover the stitching, you can machine stitch the hem, turn the cuff up into position, press to crease, and then tack at both vertical leg seam lines to be sure the cuff doesn't droop down.