Ningbo RuiChang Commodity Packaging Co., Ltd

At present,     PP Bottle    are mainly molded in one-step injection stretch-blow (ISBM) and two-step heating stretch-blow (SBM) molding machines. PP bottles have the advantages of transparency, sturdiness and heat resistance, and the price is higher than traditional materials low.

1. PP bottles can be stored at 100 ° C for hot filling. For example, juice and jam products need to be packed at this temperature, while ordinary PET bottles cannot be filled at a temperature higher than 76 ° C with a glass transition. BOPP bottles are widely used in functional beverage packaging because they can withstand high temperatures above 100t2.

2. The barrier property of PP to water is about 5 times that of PET. PP preform production equipment is cheaper than PET preform production equipment.

3. Compared with PET, the price of PP is 10% -30% cheaper than PET. The density of 0.9g / cc is less than the density of PET. 1.35g / cc. Recycling time is long, so production costs are lower.

4. The research shows that the impact strength of PP bottles can be increased from 4.7 ft to 7.8 ft after adding 15% ethylene / metallocene catalyst to polyolefin mixed with transparent silicon-free copolymerized polypropylene.

Development situation of PP bottles

PP bottles have slower processing speeds and worse physical properties than PET bottles, so they have not been widely used. But increasingly developed machinery and equipment, preform design, improved resins and special additives have helped to overcome these problems. With the successful development of the transparent modifier, nucleating agent, 0.1% -0.4% sorbitol (benzaldehyde) nucleating agent is added to ordinary PP, and it is extruded, blown, injected, and extruded. And other methods can produce high transparent PP packaging bottles. This product can be widely used as fresh fruit juice, dairy drinks, beverage bottles, etc.

PP bottles have good temperature resistance, flexible bottle design, excellent performance in terms of safety, hygiene and content retention, and are cheaper than PET, PS, PE and other materials. The continuous development of modified resins, anti-reflection agents and mechanical equipment technology has made PP containers can replace glass, PET and PVC containers, and has a broad market prospect.

Ningbo Ruichang Commodity Packaging Co., Ltd. is a professional China manufacturer and supplier of PP bottles. From product development, mold design, material selection, production and processing to "high quality" as the benchmark. Efficient production of industry-leading cost-effective cosmetic packaging. Welcome to buy our cosmetics PP bottle packaging: https://www.ruichangpacking.com