Main tests for PPW kraft paper bags are performed during an inspection stage. These tests are fitting testing, symmetry check, colorfastness testing, and seam strength testing.
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The design of PPW kraft paper bags is a good integration of all fashion elements. They are color, texture, lines, shape (silhouette), proportion, and so forth.
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The materials of PPW kraft paper bags have passed various kinds of tests. These tests are fire resistance testing, mechanical testing, formaldehyde content testing, and stability & strength testing.
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Fabrication of PPW kraft paper bags leans upon a range of international cutting-edge machines. These machines, including cloth cutting machines, sewing machines, and chain stitch machines are all highly precise and efficient.
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The design of PPW kraft paper bags is carried out based on some fundamental factors. They are comfort, breathability, safety, color matching, and appearance.
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This product has the desired elasticity. The properties of fabrics such as density, thickness, and yarn twist are all enhanced to withstand stretch.