Spun bonded polypropylene (PP) has several advantages, such as low density, chemical resistance, mildew and stain resistance, good dimensional stability, and low cost. However, it has some disadvantages, also. It is porous, UV stability is poor and it is difficult to dye or print. Coating of PP nonwoven with acrylic copolymer improves tensile strength, abrasion resistance, and UV stability. Tear strength of the coated nonwovens decrease, due to immobility of filaments during the tearing process. SEM shows that porosity decreases and pigment particles are entrapped by copolymer films after coating.
References
1.
1. Friddle, J.D. (1993). Acrylic Polymers for the 1990s and Beyond , J. Coated Fabrics, 25: 46-53 .
2.
2. Latta, B.M. (1982). Coating Industrial Fabric - A Review , J. Coated Fabrics, 11: 113-121 .
3.
3. Kantner, G.C. (1988). Acrylic Latexes for Back Coating , J. Coated Fabrics, 17: 254-264 .
4.
4. Wilkinson, C.L. (1996). A Review of Industrial Coated Fabric Substrates , J. Coated Fabrics, 26: 45-64 .
5.
5. Grant, R.R. (1990). Coating: Science, Engineering, or Art? , J. Coated Fabrics, 19: 78-91 .
6.
6. Gupta, B.S., Mc Peter, W.S. and Walsh, W.K. (1979). Solvent less Fabric Coating by Radiation Curing Part IV: Transfer Coatings on Non-woven , J. Coated Fabrics, 9: 12-25 .
7.
7. Venkataraman, B. (1990). Industrial Coated Fabrics , J. Coated Fabrics, 19: 241-251 .
