Lesson 1Threads, needles, and reinforcement supplies: thread weight, topstitch thread, needle sizes for domestic machines, rivets, bartacks, webbingUnderstand how thread, needles, and reinforcements work together to create strong seams. Learn to choose thread weights, topstitch thread, needle sizes, rivets, bartacks, and webbing suitable for domestic machines and bag loads.
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 usesCompare common outer fabrics used in bag making and how their weight, weave, and fiber content affect structure and wear. Learn when to choose canvas, denim, twill, upholstery cloth, or leather alternatives for style and performance.
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 interfacing with different fabrics and desired bag structures. You will evaluate stiffness levels, drape, fusible compatibility, and pressing temperatures so your bags hold shape without bubbling, scorching, or warping.
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 edgesUnderstand where and how to place interfacing in each bag component. You will map body panels, straps, pockets, flaps, and openings, deciding which areas need structure, which need drape, and how to avoid bulky, stiff seams.
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 lining fabrics by weight, stability, and feel to support the outer shell. Evaluate cotton lawn, quilting cotton, and polyester linings, considering fraying, ease of sewing, cleaning, and how they affect bag structure and use.
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 duckGet an overview of key interfacing and stabilizer types used in bags. Compare woven and non‑woven fusibles, sew‑in canvas, hair canvas, foam, and cotton duck, and learn when each best supports shape, corners, and hardware.
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, buttonsExplore closure hardware options and how they influence security, style, and ease of use. Compare zipper types, magnetic snaps, clasps, toggles, and buttons, and learn how to choose sizes and placements suited to each bag design.
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 distributionLearn how fabric strength, abrasion resistance, and seam design affect bag longevity. Explore reinforcement stitches, stress‑point supports, and interfacing strategies that prevent strap failures, seam splits, and distortion 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
