100% Material 90/120 Micron Screen Printing Materials Food Grade Nylon Filter Rosin Bag

90/120 micron food grade customizable and convenient multifunctional nylon filter rosin bag
 
Product Introduction
 
❀ Name:nylon filter rosin bag
❀ Material:100% polyamide
❀ Weave:plain
❀ Mesh:60 80 100
❀ Opening:90/120 micron
❀ Color:white
❀ Application:water filter,fruit juice,milk filer and so on.
❀ Feature:Premium quality food grade nylon bag with double reinforced stitching.
❀ More size:1.75*5 inch,2*4 inch,2.5 *4 inch,2.5 * 4.5 inch 3*5 inch.
 
Product Attributes
 
△ It has excellent resistant for almost solvent ,it will operating continuously at temperature up to 100℃ in the chemical PH range 7-14
△ Melting point is between 210℃-250℃
△ Softness point is between 180 ℃- 230℃
△ Low coefficient of friction
△ Good abrasion resistance
 
Product Application 
 

 
Product Specification
 
 

 
Seam types for Rosin press filter bags

Stitchless-Ultrasonic seaming:

This method employs frictional heat caused by high frequency mechanical oscillations.This method employs frictional heat caused by high frequency mechanical oscillations. This creates the heat required for welding and the material is plasticised. This type of seam should eliminate gaps for material to escape through and could be applied to any micron fabric.

Weakness: This seam was by far the weakest of all the seams.It did not hold up even under light pressure. Material easily escaped through the seams.

Stitchless-Thermal Bonding:

A process by which materials to be joined are heated causing the thermoplastic materials to melt. They are then compressed by applying pressure, which causes an intermingling of polymers. A seam is formed as the material cools and solidifies. This seam should create an impermeable seam. Disadvantages are seam stiffness and fiber degradation caused by excessive heat.

Weakness: This seam was stronger than ultrasonic seaming. But not as strong as sewing. We saw some promise in this method for hash processing, but due to the high heat used to make the seam, it can’t be used on smaller micron fabrics.

Sewing:

The advantage of traditional sewing is strength. The disadvantage is the stitch leaves gaps in the seam that can allow material to pass through the seam.

Conclusion: This seam was by far the strongest. The mesh fabric will tear before the seam blows out.