Paper plastic moulding method and paper plastic finished product thereof

Abstract

The invention discloses a paper plastic moulding method and a paper plastic finished product thereof. The method is used to convert paper pulp into a dried paper plastic finished product. The method comprises the steps of providing paper pulp having at least one super short fiber material, performing a pulp fishing step, a first pre-pressing step, a second pre-pressing step, a thermo-forming step, and an cutting step. The paper pulp (100 parts by weight) comprises 20 to 99 parts by weight of a super short fiber material for eliminating the bridge phenomenon in the groove of the paper plastic finished product. The groove of the paper plastic finished product comprises has transversal width of 0.5 mm to 8 mm.

Description

technical field [0001] The invention relates to a paper-plastic molding technology, in particular to a paper-plastic molding method for preventing the formation of bridging phenomenon at grooves of paper-plastic products, and a paper-plastic product prepared by the paper-plastic molding method. Background technique [0002] see figure 1 , a schematic cross-sectional view of a wet embryo body or pulp molded product produced by the existing paper-plastic process. Generally speaking, the existing paper-plastic manufacturing process includes a pulping step and a hot-pressing forming step. In the pulping step, the pulping station 1 dips a mold into a pulp tank (not shown) for storing pulp fibers, and the pulp The raw material of fiber is usually composed of specific plant fiber, water and other additives. Part of the pulp fiber is collected by the mold and accumulated on the upper surface of the mold 2 to form the wet green body or rough pulp molded product 5 . [0003] After ...

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Problems solved by technology

[0007] In order to solve the problems of poor product yield, fragile product structure and poor mass production efficiency caused by the bridging phenomenon of wet embryos or semi-finished products in the existing paper-plastic manufacturing process, the main purpose of the present invention is to provide a paper-plastic The plastic molding method and the paper-plastic finished product obtained by the method use the ultra-short fiber with extremely short fiber length as the pulp raw material to solve the problem of the opening or groove of the wet embryo body in the pulping step in the existing manufacturing process The problem of bridging phenomenon, and increase the structural strength of the paper-plastic product and the surface smoothness of the inner and outer surfaces

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