The filter rod is formed by polylactic acid filament bundle, including the polylactic acid sheet in the middle, and the polylactic acid filament bundle with two sides interleaved and woven on the polylactic acid sheet, and the adsorption holes of specification distribution are formed between the filament bundle, which has good absorption for the flavoring solution, and the aroma enhancement effect after applying to the filter is excellent, especially for the new tobacco without burning at low temperature. At the same time, the use of polylactic acid shaped tablets in the filter can solve the drawbacks of non-woven fabrics that cannot be degraded in the current process.

The polylactic acid filament cigarette filter produced by China Land has low cost, easy degradation, and the most important thing is that its polar molecular structure makes it have a very high adsorption and removal capacity for harmful components in the smoke, once it is introduced to the market, it will bring major changes to the entire cigarette filter industry, so the market space is very broad.