Nylon Monofilament Filter Bags for Liquid Filtration
Nylon mesh filter bags are mesh filter products made from high-strength nylon monofilaments through specific weaving, heat setting, and precision sewing processes. Their unique monofilament weaving structure gives them a smooth surface and excellent mechanical strength, making them a typical precision surface filtration medium.
Description
Nylon Monofilament Mesh
Nylon material itself possesses excellent toughness and tensile strength, capable of withstanding high fluid pressure and mechanical impact, making it suitable for continuous filtration applications.
The monofilament braided structure ensures high uniformity of filter pores, resists deformation, and guarantees stable and reliable filtration accuracy.
The smooth surface of the filter bag prevents deep clogging and allows for repeated use through washing or backwashing.
It exhibits good resistance to common inks, coatings, resins, and mild acid and alkali liquids (but is not suitable for strong acid, strong alkali, or strong oxidizing environments).

Specification 01
| Item | material | mesh count | yarn diameter | Mesh opening | open area | thickness | weight | |
| NO | mesh/cm | mesh/inch | microns | microns | % | microns | g/㎡ | |
| JPJ6 | PA6 | 6 | 16 | 400 | 1200 | 56 | 760 | 205 |
| JPJ7 | PA6 | 7 | 19 | 320 | 1000 | 57 | 610 | 157 |
| JPJ9 | PA6 | 9 | 23 | 300 | 800 | 52 | 525 | 168 |
| JPJ9.5 | PA6 | 9.5 | 24 | 250 | 800 | 58 | 480 | 145 |
| JPJ10 | PA6 | 10 | 25 | 280 | 750 | 53 | 530 | 156 |
| JPJ11 | PA6 | 11 | 30 | 250 | 600 | 49 | 470 | 150 |
| JPJ16 | PA6 | 16 | 42 | 200 | 400 | 44 | 370 | 136 |
| JPJ19 | PA6 | 19 | 48 | 180 | 350 | 43 | 335 | 125 |
| JPJ20 | PA6 | 20 | 51 | 200 | 300 | 36 | 370 | 163 |
| JPJ22 | PA6 | 22 | 56 | 150 | 300 | 36 | 280 | 102 |
| JPJ24 | PA6 | 24 | 62 | 160 | 250 | 37 | 295 | 123 |
| JPJ31 | PA6 | 31 | 80 | 120 | 200 | 39 | 215 | 87 |
| JPJ40 | PA6 | 40 | 100 | 100 | 150 | 36 | 190 | 77 |
| JPP48 | PA6 | 48 | 123 | 80 | 125 | 37 | 145 | 59 |
| JPP54 | PA6 | 54 | 140 | 60 | 125 | 45 | 88 | 38 |
| JPP62 | PA6 | 62 | 160 | 60 | 100 | 39 | 108 | 44 |
| JPP80 | PA6 | 80 | 204 | 50 | 75 | 36 | 90 | 29 |
| JPP107 | PA6 | 107 | 270 | 43 | 50 | 29 | 68 | 45 |
| JPP128 | PA6 | 128 | 320 | 43 | 35 | 20 | 78 | 46 |
| JPP157 | PA6 | 157 | 400 | 35 | 28 | 15 | 78 | 50 |
| JPP189 | PA6 | 189 | 480 | 43 | 15 | 7 | 80 | 60 |
Specification 02
| Item | material | mesh count | yarn diameter | Mesh opening | open area | thickness | weight | |
| NO | mesh/cm | mesh/inch | microns | microns | % | microns | g/㎡ | |
| JPJ7 | PA66 | 7 | 19 | 330 | 1000 | 56 | 630 | 165 |
| JPJ9 | PA66 | 9 | 23 | 270 | 800 | 56 | 510 | 138 |
| JPJ12 | PA66 | 12 | 29 | 240 | 600 | 51 | 455 | 140 |
| JPJ17 | PA66 | 17 | 43 | 180 | 400 | 47 | 335 | 116 |
| JPJ23 | PA66 | 23 | 59 | 130 | 300 | 48 | 235 | 83 |
| JPJ26 | PA66 | 26 | 66 | 130 | 250 | 43 | 240 | 94 |
| JPP28 | PA66 | 28 | 72 | 100 | 250 | 51 | 185 | 70 |
| JPJ34 | PA66 | 34 | 86 | 100 | 200 | 44 | 180 | 74 |
| JPP36 | PA66 | 36 | 93 | 100 | 170 | 39 | 182 | 69 |
| JPP38 | PA66 | 38 | 100 | 60 | 200 | 59 | 108 | 29 |
| JPP39 | PA66 | 39 | 100 | 55 | 200 | 61 | 98 | 25 |
| JPP43 | PA66 | 43 | 110 | 80 | 150 | 42 | 140 | 62 |
| JPP48 | PA66 | 48 | 123 | 80 | 125 | 37 | 145 | 59 |
| JPP58 | PA66 | 58 | 149 | 70 | 100 | 34 | 120 | 54 |
| JPP66 | PA66 | 66 | 169 | 70 | 80 | 28 | 125 | 65 |
| JPP93 | PA66 | 93 | 236 | 47 | 60 | 31 | 75 | 39 |
| JPP110 | PA66 | 110 | 280 | 38 | 50 | 29 | 71 | 36 |
| JPP120 | PA66 | 120 | 305 | 38 | 45 | 29 | 74 | 37 |
| JPP157 | PA66 | 157 | 400 | 35 | 28 | 20 | 66 | 40 |
| JPP189 | PA66 | 189 | 480 | 43 | 15 | 7 | 80 | 60 |
Leakage Prevention Technology

☑ Ring Configuration
The filter bag top can be flexibly equipped with stainless steel rings, galvanized steel rings, or high-strength engineering plastic rings according to different filter housing structures and sealing requirements. The ring collar is securely integrated with the filter bag body through high-strength hot-melt or ultrasonic bonding technology, ensuring firm attachment, deformation resistance, and fatigue durability. It enables tight sealing with the tube sheet, effectively preventing bypass leakage and dust emission, and is suitable for a wide range of industrial filtration systems and operating conditions.

☑ Sewing Process
A reinforced double-needle overlocking technique is applied, combined with a high-density edge-lock stitching structure. This creates multiple interlaced fixation paths that effectively reduce the risk of needle-hole deformation and expansion, significantly minimizing or even eliminating lateral leakage at stitch points. The sewing area undergoes strict tension control and uniform pressing treatment, ensuring stable sealing performance under high pressure, pulse-jet cleaning, and long-term operating conditions, thereby greatly improving overall filtration efficiency and system reliability.

Application Industries
Due to its high strength, corrosion resistance, and easy cleaning properties, nylon filter bags play a crucial role in high-precision solid-liquid separation in the following industries:
Particularly suitable for the purification of water-based paints, automotive electrophoretic paints, oils, inks, resins, and various chemical solvents, intercepting impurities and particles in high-viscosity liquids.
Widely used in pretreatment pre-cleaning, spray rinsing water, circulating water filtration, and fine filtration of paints in paint mixing rooms, strictly controlling fibers and particles from entering the spraying process.
Used for solid-liquid separation and recycling of various corrosive liquids, chemical reagents, and industrial wastewater.
Used for the initial filtration, clarification, and interception of large particulate impurities in liquid raw materials in applications meeting food/pharmaceutical grade requirements.



