Acrylic dust bag fiber, it is made from 100% acrylonitrile of the first monomer copolymer, by wet or dry spinning and produced. Close to the flame when the melt shrinkage, contact with the flame when the melt burning, leaving the flame continues to burn and black smoke, burning with burning hair smell, the residue after cooling, lightly twisted by hand is black irregular small beads or scorched carbon, easy to break.

(1) acrylic dust bag morphology: its longitudinal surface or a small number of grooves, cross-section varies with different spinning methods, dry spinning fiber cross-section is dumbbell-shaped, wet spinning is round.

(2) acrylic dust bag strong elongation and elasticity: its strength of 17.6 to 30.8cN/tex, lower than polyester and nylon, its elongation at break of 25% to 46%, similar to polyester, nylon. Acrylic fluffy, curly and soft, elasticity is better, but the residual deformation of multiple stretching is larger, the fabric is not good conformability.

(3) acrylic dust bag moisture absorption: acrylic structure is tight, low moisture absorption, general atmospheric conditions moisture regain rate of about 2%.

(4) acrylic dust bag light resistance: acrylic light resistance and weather resistance is particularly good, the best in the common textile fibers. Acrylic in outdoor exposure to the sun for a year, its strength only 20% decline, so acrylic is most suitable for outdoor fabrics.

(5) Acrylic dust bag acid and alkali resistance: it has a good chemical stability, acid resistance, resistance to weak alkali, oxidizing agents and organic solvents. However, acrylic will yellow in the alkali solution, macromolecules fracture.

(6) Acrylic dust bag of other properties It has good heat resistance, but poor abrasion resistance and poor dimensional stability. The relative density of acrylic is small.

Acrylic dust bag working use temperature ≤ 150 ℃, the instantaneous temperature ≤ 180 ℃. Dust bag is generally divided into three main categories, namely room temperature, medium temperature, high temperature filter bag type. Normal temperature dust removal filter bags generally work below 120 ℃, mainly polyester type filter bags; medium temperature dust removal filter bags generally work below 150 ℃