What are the methods for modifying plastic woven bags? | Qingdao Johson Packaging

What are the methods for modifying plastic woven bags?

1.General woven bags, non-laminated woven bags are usually called: general woven bags, abbreviated as: woven bags.

Its production process is: woven cloth is printed, cut, sewn, and finally made into a woven bag. Depending on the equipment of the non-woven shopping bag used, it can be cut first and then printed, or it can be printed first and then cut. Automatic cutting and sewing can continuously complete printing, cutting, sewing and other processes, and can also be made into valve bags, bottom bags, etc. For plain woven fabrics, the middle seam can be bonded and then made into bags.

The main technical goals of general woven bag making are the appearance tolerance, the tensile strength of the seam bottom OPP composite non-woven bag and the seam edge, the clarity of the printing ink and the cleanliness of other parts after printing, and the accurate layout orientation. Requirements for stitch length, suture stitches, stitch length, and stitching defects such as needle stripping and thread breakage.

2.Composite plastic woven bag:

The production process of two-in-one, three-in-one and other composite plastic woven bags is to compound or coat woven cloth, coated woven bag manufacturer materials and paper or film. The obtained tube cloth or piece of cloth can be cut, printed, and sewn to be made into a general seam bottom bag. It can also be punched, folded, cut, printed, and sewn to be made into a cement bag. The obtained piece The cloth can be seamed, printed, cut, and pasted to make a pasted bottom bag. It can also be welded, rolled, and made into tarpaulins and geotextiles. The key to the composite bag making process is composite.

The principle of coating is to apply resin to the base woven fabric in a molten state. Only the molten resin is applied to the woven fabric and cooled immediately to obtain a two-in-one woven fabric. If the molten resin film is sandwiched between woven cloth and paper or plastic film during compounding, and then cooled to obtain a three-in-one woven cloth coating, it can be coated on one side of the flat fabric to obtain a sheet cloth, or it can be coated on both sides of the cylinder cloth. Repeat to obtain the coated cylinder cloth. The coated woven fabric can be printed, cut, and sewn into various bag shapes. The wide-width coated fabric can also be rolled up and shipped as tarpaulin.

The main goals of the coating process are the control of temperature, pressure, thickness, and the peel strength of the coating.

3.Various woven fabrics.

Plain woven fabrics can be coated or uncoated to produce tarpaulins, geotextiles, etc. Cylindrical fabrics can also be broken and coated or uncoated to produce tarpaulins, geotextiles, etc.