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They are often a construction of plastic film, plastic-coated fabric, or waterproof fabric ( Nylon, Vinyl, TPU, PVC and Tarpaulin )which is formed to create an impermeable, waterproof bag. Construction techniques include welding,(RF or Radio Frequency Welding) sewing (a seam-tape is used to seal over any needle holes) and gluing.
Seam sealants are sprayed or extruded over the joined edges of these overlaps, and they then either cure to a flexible waterproof "seal" by drying (dehydrating) in the case of water borne compositions, or thermoset irreversibly to a flexible adherent seam seal by going through an oven bake in the case of plasticized polyvinylchloride compositions.
types of hand sewing stitches. This is a list of stitches used in hand and machine sewing. The most common standard for stitches in the apparel industry is ASTM International ASTM D6193-16(2020) [1] The standard also covers various types of seams. Under this classification of stitches there are basic groups as follows: Class 100 - Single Thread ...
Bias tape is used in making piping, binding seams, finishing raw edges, and is also used decoratively. It is often used on the edges of quilts, placemats, and bibs, around armhole and neckline edges instead of a facing, and as a simple strap or tie for casual bags or clothing.
Drop of water on 100% polyester textile. Waterproof/breathable fabrics resist liquid water passing through, but allow water vapour to pass through. Their ability to block out rain and snow while allowing vapour from sweat to evaporate leads to their use in rainwear, waterproof outdoor sports clothing, tents, and other applications.
Seam (sewing) Seam allowance; T. Twill tape This page was last edited on 9 January 2017, at 16:20 (UTC). Text is available under the Creative Commons ...