Plastic garbage bag were widely applied in daily life, generally using the raw material of HDPE and LDPE. Star seal garbage bags on roll are usually the main shape for household using. However, in some situation, single flat bottom garbage bags are being more used, like sanitation garbage bag, construction garbage bag etcetera.
With the environmental requirments getting strickly, people are preferring to use plastic garbage bags and produce bag which made of bio-degradable materials.
While garbage bags can be classified by shape to four types, including star seal bag on roll, draw string bag on roll, double fold bag and single flat bottom bag. 
And also star seal bag could be classify to flat edge bag, t-shirt bag and S type bag. 

Star seal bag on roll making machines are the most competitive machine which being concentrated the lastest technology of Silstar Machinery.
Silstar Machinery’s star seal bag making machine almost took up the market share over 70%, in the oversea markets like southeast Asia, especially in Vietnam. While in the demostic market, it is also a well known brand and receives good reputations.
Compared to other manufacturers’ design, the sealing and perforating procedures of Silstar Machinery’s high speed star seal bag on roll making machine were well reformed to avoid the distortion problem caused by the excessive tension.
It’s automatic rewinding system was being designed to double line and could work, turn-up, change rolls seperately. Due to this design, one line could keeps working without any disturbance even if film snapped or roll changing.
Meanwhile, this design is very useful for plastic bag maker who want produce different material, size and roll number on two lines. Generally, this design improves productivity and machine utilization.