Woven bag is a kind of plastic, and its raw materials are generally polyethylene, polypropylene and other chemical plastic raw materials. , bagged.
As far as the sewing process indicators are concerned, which ones should we focus on?
Sewing strength index: The main factors that affect the suture strength are the type and type of suture, the size of the stitch, the stitch, the size of the rolled or folded suture to the edge of the bag, hot and cold cutting methods, etc. Plastic weaving enterprises should formulate internal control indicators for these influencing factors.
Dimensional tolerance: For plastic woven bags and composite plastic woven bags, the length and width tolerances are also +15mm and -10mm. For the tube cloth that does not meet the width tolerance, it is screened out in the bag making process and waiting for processing. For glued-seam bags, the length tolerance refers to the effective length after sewing, which is left as a seam when cutting. The size of the seam is determined by the specific conditions of hemming, hemming, and hemming inside the upper mouth.
Printing graphics: Plastic weaving printing is mainly letterpress printing, printing graphics and text position tolerance, printing graphics and text clarity, printing graphics and text colors, etc. Generally, plastic weaving enterprises should formulate corporate printing standards according to user requirements. When formulating enterprise standards, it is necessary to consider the type of printing equipment, type of printing ink, printing capacity, etc.
Post time: Oct-15-2022