The Application of Polyester Spiral Fabric

Polyester spiral fabric is a circular mesh fabric made by winding high viscosity PET polyester monofilaments in a spiral loop, thread locking, and high-temperature heat setting. With high strength, high temperature resistance, hydrolysis resistance, adjustable breathability, easy repair, and seamless joints, it has become a key filtration and conveying medium in industries such as pulp and paper, environmentally friendly solid-liquid separation, printing and dyeing drying, food processing, mineral processing, and coal washing.

Polyester spiral fabric is composed of spiral rings and threading threads, which can be flexibly adjusted for breathability and flatness by filling round/flat threads, and has irreplaceable process value.

1. Pulp and Paper Industry

(1) Spiral dryer fabric in the dryer section of paper machine

As the main mesh type for drying packaging paper, kraft paper, corrugated paper, pulp board, and cultural paper, it is particularly suitable for medium and low-speed paper machines and high weight paper;

High humidity area in the front section: high permeability spiral fabric, fast dehumidification, and improved heat transfer efficiency;

Post molding area: low breathability, high flatness mesh, stable banner moisture, and reduced paper warping.

(2) Pulp washing and dewatering fabric

Horizontal belt vacuum washer bottom fabric: replaces traditional rubber belts, with high permeability, wear resistance, and easy cleaning, achieving efficient extraction of black liquor and washing of pulp;

Pulp concentration/dewatering fabric: used for inclined mesh and vacuum filter machines, with stable solid-liquid separation, no clogging of the mesh, and uniform discharge.

2. Environmental Protection and Solid Liquid Separation

(1) Belt filter press/sludge dewatering polyester spiral fabric

Deep dewatering core filter belt for municipal sludge and industrial sludge (papermaking, chemical, printing and dyeing):

High porosity, permeable without mud leakage, low moisture content of the discharged mud;

Acid and alkali resistant, resistant to corrosive agents, stable continuous operation, suitable for fully automatic pressure filtration production lines.

(2) Industrial wastewater filter polyester spiral fabric

Recycling of papermaking wastewater, clarification of chemical filtrate, and treatment of mine wastewater to achieve efficient retention of solid slag and reuse of clean water, reducing environmental treatment costs.

3. Widely Adaptable to Other Industrial Fields

(1) Printing, dyeing, and textile drying

Hot air drying spiral fabric for printed and dyed fabrics, non-woven fabrics, and meltblown fabrics:

High temperature resistance of 120-180 ℃, uniform breathability, no watermarks or creases during drying;

Smooth surface, no dye sticking, no scratching of the fiber mesh, ensuring the quality of the finished product.

(2) Food and medicine drying and conveying

Food grade polyester material, non-toxic and odorless, suitable for:

Dehydration of fruits and vegetables, drying of grains, and transportation of food particles;

Drying of traditional Chinese medicinal materials and filtering of medicinal raw materials meet hygiene and safety requirements.

(3) Mineral processing, coal washing, and building materials processing

Coal washing plant coal slurry dewatering, mining concentrate/tailings filtration, wear-resistant and impact resistant, stable continuous operation;

Drying of building materials boards, conveying and shaping of gypsum boards/fiberboards, with stable dimensions and good load-bearing capacity.

Spiral   fabric has become a versatile mesh belt for industrial dehydration, drying, filtration, and transportation due to its flexible structure, stable performance, strong versatility, and optimal cost. In the paper industry, it is a necessary consumable for the drying and washing sections; In the fields of environmental protection and food, it continues to replace traditional filter cloth, rubber belt, and ordinary woven mesh. Based on the scientific selection and standardized operation and maintenance of process requirements, it can significantly improve equipment efficiency, reduce energy consumption and consumables costs, and provide solid support for industrial continuous and efficient production.u