Non-woven fabric requirements for calcium carbonate filled masterbatch

What is the general amount of calcium carbonate filled masterbatch added to non-woven fabrics? Compared with injection molding \ blow molding, what special requirements do you have?

The three major fibers used in the production of non-woven fabrics are polypropylene fibers (62% of the total), polyester fibers (24% of the total) and viscose fibers (8% of the total). Between 1970 and 1985, viscose fibers were most widely used in the production of nonwoven fabrics. However, in the past five years, in the fields of hygienic absorbent materials and medical textiles, the application of polypropylene fibers and polyester fibers has begun to dominate. In the early non-woven fabric production market, the amount of nylon was very large. Since 1998, the amount of acrylic fibers began to rise, especially in the field of artificial leather manufacturing.

The non-woven fabric is usually made of PP material, and the filling material is the same as that of the woven bag.

Filling masterbatch for polypropylene woven bag (or polypropylene pipe)   

  Formula composition (parts by mass) Random polypropylene (APP)             35

Calcium carbonate                      65

Titanate coupling agent TTS            1 .0

Stearic acid (HSt)                 2

Polyethylene wax                    0.5    

Processing conditions   APP has a low softening point, and the effect of coated filler is better, but the strength of the product is lower; among them, calcium carbonate can be used in hydrogen type or heavy type, but all need to be coupled in advance, and then mixed with APP and other additives .