Hot melt prepreg making system uses heat and pressure to impregnate fibers with resin and produce prepreg.
Hot melt prepreg production is a two-stage process: pre-lamination of a substrate paper and impregnation of the fibers. Fibers are led through a comb to get evenly spread and thenlaid on a carrier paper laminated with a certain resin content, and usually sandwiched with another carrier paper (dry or laminated). Sandwiched fibers are pulled through heated compaction rolls, and then lead through cooling rolls. In the final stage of the process, one of the carrier papers is removed and the final prepreg is rerolled with the one back-up paper.
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