1. General woven bags, non-laminated woven bags are commonly referred to as: general woven bags, abbreviated as: woven bags.
The production process involves: The woven fabric is printed, cut, stitched, and then becomes a woven sack. Depending on the equipment used for non-woven shopping bags, the order can be cutting first followed by printing, or printing first then cutting. The automatic cutting and sewing can sequentially complete the printing, cutting, and stitching processes, and can also be made into valve bags, bottom bags, etc. For plain woven fabric, it can be stitched in the middle and then made into bags.
The primary objectives of the general woven sack bag-making process are the dimensional accuracy of the exterior, the tensile strength of the bottom OPP composite non-woven bags in both the seam and side directions, the clarity of the printing inks, and the cleanliness of other areas after printing, the accuracy of the layout orientation, the stitching quality, the needle spacing, and the requirements for issues such as skipped stitches and broken threads.
2. Composite Plastic Woven Sacks
The production process for composite woven bags, such as two-in-one and three-in-one, involves the lamination or coating of woven fabric with manufacturer's materials and paper or film. The resulting tube fabric or sheet fabric can be cut, printed, stitched to make general sewn-bottom bags, or punched, folded, cut, printed, and stitched to create cement bags. The sheet fabric can be bonded in the middle, printed, cut, and laminated to make glued-bottom bags. It can also be welded, rolled, and made into tarpaulins and geotextiles. The key to the composite bag-making process is the lamination.
The principle of coating involves applying the resin in a molten state to the woven base fabric. Simply coating the woven fabric with molten resin and immediately cooling it results in a two-in-one woven fabric. When the resin film is sandwiched between the woven fabric and paper or plastic film during lamination and then cooled, a three-in-one woven fabric is obtained. The coated woven fabric can be printed, cut, and sewn into various bag styles. Wide-width coated fabrics can also be rolled up for use as tarpaulins.
The objectives of the coating process mainly involve controlling temperature, pressure, thickness, and the peel strength of the coating.
3. Various woven fabrics.
Woven fabrics can be coated or uncoated to produce tarpaulins, geotextiles, and the like, while cylindrical fabrics can also be cut and coated or uncoated to produce tarpaulins, geotextiles, and similar products.
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