How to produce a very clean pp hollow corrugated sheet?


Pp hollow corrugated sheet also called corrugated plastic boards, coroplast sheets, correx plastic sheets, corflute panels, polypropylene hollow sheets, fluted board, danpla sheets, etc.

Corrugated plastic sheet is a plastic board with an extruded hollow structure. The raw material is polypropylene. It has the characteristics of light weight, non-toxic, non-polluting, waterproof, shockproof, anti-aging, corrosion resistance and rich colors.
coroplast sheet, correx, corflute, pp hollow corrugated plastic sheet

Today we want to introduce to you, how to produce pp hollow corrugated sheets?

  1. Cleaning of the mold part: Since the presence of grease will not only affect the transparency of the hollow plate, but also increase the cracking problem of the hollow plate, it is required to scrub the mold cavity, runners, roots of the molding holes, corners, and corners before molding. Parting surface, ejector top plate, and other parts.
  2. The resin particles must be clean and tidy: In order to prevent the dust from attaching to the surface of the particles due to electrostatic suction, and then exposing them to the hollow board due to light refraction, it is required to pay attention to the appearance of the package before opening the package. Clean the surroundings and containers. Operators should also pay attention to their own cleaning work. For the particles that have been opened, checks should be paid attention to, and the remaining particles should be carefully packaged to create convenient conditions for reuse.
  3. The equipment must be clean and tidy:  no other resin is allowed in the hopper or barrel, or in the nozzle, otherwise it will affect the transparency or other properties of pp hollow corrugated sheet. Therefore, qualified units should use special equipment for processing as much as possible, or use special barrels, screws, and nozzles. If this is not possible, they can take the disassembly and wash method or use resin for cleaning.

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