Compost bags

Compostable bags for organic waste have been one of the most natural applications for biodegradable polymers. The further development of this market is strictly related to the waste management policies adopted by public authorities in the various regions of the world and to the availability of efficient composting facilities. 

In the UK, the lack of industrial composting infrastructures has promoted the compliance of bags with home composting standards such as OK Compost Home developed by Vingotte. 

suppliers of compost bags are present in the EU and the USA the widest range of producers are in Italy and Germany. 

In 1994 separate collection of organic waste was made mandatory in The Netherlands. Most compost facilities are reluctant to receive organic waste in bags. Velca Trading sells compost bags on the Dutch market for 0.30 euros per 15 litre bag. 

Demand for biodegradable polymers in compost bag applications has not grown to the same extent in the United States as it has in Europe. The only significant need for compost 

---

Compost bags PE o o Paper Material selection depends on desired property profilee.gPE-LD-orPE-HD-like... 

Paper is a biodegradable alternative to plastics. Compost bags made of paper are rather heavy. Pure Kraft paper exhibits a limited resistance to oil and fat, and the rough surface limits the printability. But, the acceptance by customers is high because paper is perceived as an enviromnentally friendly material. 

Thin biodegradable carrier bags have a property profile that is similar to compost bags ... 

Usefulness as compost bags after several services as a carrier bag... 

Except for the optical presentation and the resulting need for printability, biodegradable carrier bags have to fulfill very similar requirements to biodegradable compost bags. 

O.K. compost was acquired in 1998. An independent organization approved the biodegradability and safety of use of Bionolle as compost bags. 

Figure 8 shows some examples of the improvement in processability using polymer alloy technology. Bionolle 3001 is mainly used for compostable bags and is featured by its softness and rapid biodegradability. However, the processability is... 

The promising market segments of Bionolle in the future are compostable bags and agricultural mulching film applications, where better processability (equivalent to conventional resin) and further cost reduction are required. 

Figure 18 shows compost bags made of the conventional Bionolle, which are already in the market, and the trial samples of compost bags made of starch... 

The potential applications of BIONELLE in injection-molded articles (such as cutlery, brushes, etc.), tubular films (composting bag, shopping bag), flexible packaging, food tray, cosmetic bottles, and beverage bottles have been projected. In some of these applications, there is a need to improve the performance of existing grades. 

Starch-based biodegradable plastics are used for manufacture of various types of bags and sacks including, refuse sacks, shopping bags and compost bags. 

Applications currently promoted for oxidatively biodegradable plastics include, landfill covers and bags for landfill disposal, agricultural film and a route to alleviate litter. They do not currently meet compost bag use. 

Bioplast (Biotec GmbH, a unit of Mehtta) Thermoplastic starch to be used for composting bags, disposable tableware, flower pots, etc. 

V., Dow Chem. Co., Mitsui Toatsu Chem., Ltd., Neste Oy) Poly-lactic acid (PLA) for thermoforming, blow molding, extrusion of fibers and films. The available products include compostable bags, food containers, cafeteria plates, cutlery, medical and pharmaceutical articles,... 

Today, there are products that satisfy the technical requirements and have an acceptable market price. One commercial success story is represented by Mater-bi , a plastic material based on TPS and other polymers that is very versatile and suitable for applications such as composting bags, mulch film, disposable cutlery, etc. However, due to the complexity of its production, its cost is higher than conventional polyethylene or polypropylene, and it is generally sold for applications where biodegradability is mandatory. 

---