Factory Price Pp Packaging Bags - China PP Polypropylene Woven Sack Bag Pack flood-proof woven bags – Meixu

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Product parameter

1. Weaving density tolerance.
The braid density tolerance refers to the number of flat yarns more than the given standard braid density or reduced.
2. The mass per unit area of ​​woven fabric.
The weight per unit area of ​​woven cloth is expressed in square meters, which is an important technical indicator of woven cloth. The square meter weight mainly depends on the warp and weft density and the thickness of the flat yarn. The square meter weight affects the tensile strength and load capacity of the woven fabric. The square meter weight is a major link in the cost control of the production enterprise.
3. Braided fabric tensile load.
Tensile load is also called tensile strength, tensile strength. For woven cloth, it bears tensile load in both warp and weft directions, so it is called warp and weft tensile load.
4. Width.
The width of various woven fabrics directly affects the bag making process. For the tube cloth, the warp is used to indicate the width, and the warp is equal to half of the circumference.
Width shrinkage rate, the width of all woven fabrics after weaving and winding, after unwinding, cutting, printing, and sewing, the width of the bag made is slightly smaller than the width when winding, we call the width shrinkage.
5. Feeling.
PP flat wire braid is thicker, wider and harder.
HDPE flat wire braid is soft, smooth and not dense.
Adding calcium masterbatch to PP flat yarn will give a wide hand feel. Adding less HDPE to PP will make it softer.
The flat wire is narrow, the weave is flat, the hand feel is soft, and the flat wire is wide. When weaving the cloth, there are many folds and the hand feels rough.