Apr. 19, 2021
"The advancement of technology has made the style of plastic bottles present a blossoming scene. Bottles of various shapes and colors are used in all aspects of people's lives. Double neck bottles are such a new type of packaging, mainly used for solutions that need to be diluted, such as disinfectants and pesticides package.
The solution contained in the twin-neck bottle is generally corrosive, and the bottle body needs to be squeezed to introduce the solution into the graduated volumetric cavity during use, so the material performance has higher requirements. The choice of material is generally polyethylene. Polyethylene is odorless, non-toxic, feels like wax, has excellent low temperature resistance (the lowest temperature can reach -100~-70°C), has good chemical stability and can withstand most Corrosion by acids and alkalis (not resistant to acids with oxidizing properties). It is insoluble in general solvents at room temperature, has low water absorption and excellent electrical insulation.
Polyethylene materials can be processed by injection molding, extrusion molding, blow molding and other processing methods. Mainly used as agricultural film, industrial packaging film, pharmaceutical and food packaging film, machinery parts, daily necessities, building materials, wire, cable insulation, coating, synthetic paper, etc.
The excellent properties of polyethylene bottles are the best choice for making double-neck bottles. In order to distinguish products from other brands, some disinfectant or pesticide manufacturers have special requirements for the color of bottles, and they will require packaging manufacturers to add color masterbatches to polyethylene materials to achieve the desired color and presentation effect. "