A method and process for evaluating the performance of flushable wet wipes
As an emerging sanitary product in recent years, wet wipes can be used in various occasions for personal consumption and commercial use, such as civil aviation, family, hotels, restaurants, travel, etc., and are very popular for their convenience. As disposable sanitary products, wet wipes have brought great convenience to people's lives and revolutionized modern lifestyles. However, as product usage continues to grow, post-consumption disposal of such products has become increasingly problematic. In recent years, the new flushable wipes on the market are said to be made of cellulose fibers and are non-woven wipes. They can not only be flushed in the toilet after use, but also biodegradable in the sewage treatment system. , without causing any environmental pollution, will be the main development direction of the wet wipes industry in the future.
In order to standardize product research and implement industrialization, the American and European nonwovens associations released the "Guidelines for Evaluating Disposable Nonwovens Products for Flushing" in 2008. With the development of the industry, the current guidelines This is the third edition. In the third edition of the guidelines, the flushability of non-woven products is mainly emphasized, and it is stipulated that the flushable properties need to be tested through a seven-step test, including flushing toilet and drain test, sloshing box festering test, and household drainage. Pump test, cylindrical settlement test, aerobic bio-collapse test/aerobic biodegradation test, anaerobic bio-collapse test/anaerobic biodegradation test, municipal drainage pump test.
In my country, flushable non-woven wet wipes are a new thing, and no testing and evaluation methods have been established. For dispersing wet wipes, the third edition of the foreign guidelines are currently used for the inspection of related products. However, in actual work, it is found that many tests are repeated tests in the method provided by the third edition of the guidelines, which prolongs the test time and increases the test cost. Moreover, this method can only be used to evaluate the flushable performance, and cannot guarantee the wet Therefore, some wet tissue manufacturers reduce the strength to achieve good flushing performance, resulting in these wet tissue products cannot be used normally due to their low strength. To this end, it is necessary to establish a simple, efficient and time-saving method that can be used to evaluate the performance of non-woven wet wipes from being thrown into the toilet to the sewage treatment system after use. It is important for regulating the development of the non-woven wet wipes industry and protecting the ecological environment significance.
