Water washing technology for PET plastic bottle sheet materials

Abstract

The invention discloses a water washing technology for PET plastic bottle sheet materials. According to the water washing technology, cleaning and drying equipment is used, the technology specificallyincludes the following steps that Step 1, the plastic bottle sheet materials are conveyed through a conveying belt on an annular conveying frame, the plastic bottle sheet materials entering a cleaning box body are washed through a lower cleaning pipe and an upper cleaning pipe, a cleaning liquid after washing falls into a water receiving funnel, the cleaning liquid is filtered through a filter screen arranged on the water receiving funnel, and the filtered cleaning liquid flows back into a circulating water tank to be reused. According to the technology, the plastic bottle sheet materials areconveyed through the conveying belt on the annular conveying frame, conveying, cleaning and drying of the plastic bottle sheet materials are achieved, and thus the water washing processing efficiencyof the plastic bottle sheet materials is effectively improved; the water washing processing cost is saved by filtering and reusing of the cleaning liquid; the plastic bottle sheet materials are turned through a turning assembly, it is guaranteed that the plastic bottle sheet materials are washed more comprehensively and evenly, and the washing effect on the plastic bottle sheet materials is improved.

Description

technical field [0001] The invention relates to the technical field of washing processing, in particular to a washing process of PET plastic bottle flakes. Background technique [0002] The traditional method of producing polyester FDY filaments uses virgin polyester chips as raw materials, which are characterized by high purity, stable viscosity, and low water content; the entire production process is short, and the specific process is drying-screw melt extrusion-first-stage filtration —Spinning has the disadvantages of high production cost and large consumption of petroleum resources. [0003] In order to solve the problems existing in the traditional process, technicians have found a method of using PET (polyester) bottle flakes to produce polyester FDY filaments. However, there are relatively large technical defects in the current production process, which are mainly reflected in: plastic bottle flakes contain many impurities, especially sediment, labels, label glue and...

AI Technical Summary

Problems solved by technology

However, there are relatively large technical defects in the current production process, which are mainly reflected in: plastic bottle flakes contain many impurities, especially sediment, labels, label glue and bottle flakes are stained with

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