1. Raw Material Selection
Finishing: Pre-washed, bleached, dyed, water-repellent coating (optional).
Cotton Fabric TypesCanvas cotton (4 oz – 16 oz; thicker = stronger bags).
Organic cotton (eco-friendly, GOTS certified).Recycled cotton (made from garment/fabric waste).
Weaving Style: Plain weave (durable), twill weave (softer, flexible).
2. Cutting Process
Fabric Spreading & Cutting
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- Fabric rolls are spread on cutting tables.
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- Manual cutting with scissors for small-scale.
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- Die-cutting or CNC fabric cutting machines for mass production.
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- Optimization: Nesting patterns to minimize fabric waste
Shoulder-length vs. hand-carry.
3. Stitching & Assembly
Stitching Methods
Lockstitch: Strong seams for bag sides.
Overlock/Serger: Prevents fabric fraying.
Double Stitch / Cross Stitch: Reinforcement on handles.
Handle Attachment
Cross-stitched for load strength.
Rope handles (eyelets + knots).
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4. Printing & Branding
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Techniques
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Screen Printing: Best for bold, durable logos.
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Heat Transfer Printing: For complex/multicolor designs.
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Digital Printing (DTG): Small runs, detailed artwork.
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Embroidery: Premium branding.
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Inks/Dyes: Eco-friendly, water-based inks for sustainability