Lesson 1Threads, needles, and reinforcement supplies: thread weight, topstitch thread, needle sizes for domestic machines, rivets, bartacks, webbingGrasp how threads, needles, and strength aids combine for solid joins. Learn to select thread sizes, visible stitch threads, needle fits, metal pins, secure stitches, and strap bands for home machines and bag weights.
Comparing all-purpose and heavy threadTopstitch thread for visible seamsNeedle sizes for thick bag layersUsing rivets at high-stress pointsBartacks for strap and pocket securitySelecting webbing types and widthsLesson 2Fabric selection: characteristics of common outer fabrics (canvas, cotton drill, denim, twill, upholstery, leather alternatives) and recommended usesReview usual outer fabrics in bag crafting and how their heft, weave, and fibers impact form and lasting. Learn when to pick canvas, denim, twill, seat cloth, or fake leather for look and strength in Eritrea sewing.
Canvas weights and ideal bag projectsCotton drill and twill for structured totesDenim for casual, durable everyday bagsUpholstery fabrics for firm, dressy bagsLeather alternatives and vegan optionsPrewashing and grain alignment for outersLesson 3How to match interfacing to fabric and structure: stiffness levels, fusible compatibility, heat settingsLearn to pair support layers with fabrics and wanted bag forms. You will check firmness, flow, stick-on fit, and iron heat so bags keep shape without bubbles, burns, or twists in your work.
Reading interfacing weight and stiffnessTesting fusible adhesion on fabric scrapsHeat, steam, and pressing time settingsCombining layers for custom structurePreventing bubbling and print show-throughAdjusting structure for bag size and useLesson 4Where to apply interfacing by component: body panels, straps, pocket facings, flaps, top edgesKnow where and how to place supports in each bag part. You will map main panels, straps, pockets, covers, and tops, choosing spots for firmness, flow, and avoiding thick, hard joins.
Interfacing full vs partial body panelsReinforcing strap and handle attachment zonesStabilizing pocket facings and openingsSupporting flaps, closures, and lidsStrengthening top edges and zipper areasLayering interfacing without excess bulkLesson 5Lining fabrics: lightweight vs stable linings (cotton lawn, quilting cotton, polyester lining) and pros/consCompare inner fabrics by weight, steadiness, and touch to aid the outer layer. Weigh cotton lawn, quilt cotton, and poly inner, thinking of fray, sewing ease, cleaning, and bag form effects.
Roles of linings in different bag stylesCotton lawn for light, flexible liningsQuilting cotton for easy, stable liningsPolyester lining for slick interiorsManaging fraying and seam finishesColor, print, and opacity considerationsLesson 6Interfacing types and functions: woven fusible, non-woven fusible, sew-in canvas, hair canvas, foam stabilizer, sew-in cotton duckOverview of main support and steady types in bags. Compare woven stick-on, non-woven stick-on, stitch-in canvas, horse hair canvas, foam steady, and cotton duck, and when each aids shape, angles, and fittings best.
Woven fusible for stable, natural drapeNon-woven fusible for quick stabilizationSew-in canvas and hair canvas usesFoam stabilizer for structured bagsSew-in cotton duck for heavy totesMixing stabilizers within one projectLesson 7Selecting closure hardware: zippers (nylon vs metal, separating vs closed-end), magnetic snaps, metal clasps, toggles, buttonsLook at closing fittings choices and how they shape safety, look, and use ease. Compare zipper kinds, magnet snaps, metal hooks, switches, and buttons, and pick sizes and spots for each bag plan.
Nylon vs metal zippers and ideal usesSeparating vs closed-end zipper selectionSizing and placing magnetic snaps safelyUsing clasps, toggles, and gate ringsButtons, loops, and decorative closuresReinforcing fabric under closuresLesson 8Durability and wear considerations: abrasion resistance, seam reinforcement methods, interfacing for stress distributionGrasp how fabric power, rub resistance, and join design impact bag life. Look at strength stitches, pressure supports, and support plans that stop strap breaks, join rips, and shape loss over time.
Assessing abrasion zones on common bag stylesChoosing durable fabrics for high-wear areasReinforcing seams with stitching and tapeInterfacing straps, handles, and anchor pointsDistributing load at D-rings and hardwareTesting durability before full production
