A screen-printable blow molding micro-foaming toolbox and preparation method thereof

Abstract

The invention relates to a micro-foaming tool box material and a preparation method thereof, in particular to a micro-foaming tool box material capable of screen printing and blow molding and a preparation method thereof. The material of the present invention comprises the following components in parts by weight: 70-90 parts of polyethylene, 5-15 parts of ultra-high fluidity polyethylene, 0-10 parts of filler, 1-10 parts of polar modifier, compatible 1-5 parts of agent, 1-15 parts of toughening agent, 1-10 parts of foaming agent, 3-15 parts of foaming aids, and 0.5-2 parts of other additives. And disclosed its preparation method. The material of the invention has fine forming cells, high cell density, smooth and uniform surface of the micro-foaming toolbox, paint can be applied and spread evenly, rich texture, strong adhesion of the silk-screen paint, no falling off in the adhesion test, and meets the requirements of silk-screen printing of the toolbox. It also has the characteristics of light weight, good cushioning, good dimensional stability, short molding cycle and high qualified rate of finished products.

Description

technical field [0001] The invention relates to a toolbox material and a preparation method thereof, in particular to a silk-screen-printable blow-molded microfoaming toolbox and a preparation method thereof, belonging to the technical field of polymer materials. Background technique [0002] The blow molding tool box gathers various tools together for easy use and management and maintenance. On the premise of meeting the basic mechanical performance requirements, it is also required to have a beautiful appearance. Among them, the exquisite appearance is mainly obtained by silk screen printing. Due to its unique sandwich structure, blow molding micro-foaming technology can achieve substantial weight reduction on the premise of meeting the mechanical performance requirements of toolbox products, which can not only significantly reduce product costs, but also improve product portability and product integration. . However, in practical applications, because the foaming proce...

AI Technical Summary

Problems solved by technology

However, in practical applications, because the toolbox foaming process is free foaming, the product surface is not smooth, pitting and other defects, and the toolbox silk screen printing process has very strict surface smoothness requirements

The above defects are easily enlarged during the silk screen printing process, which will seriously affect the silk screen printing effect of product trademarks in the later stage, resulting in unclear fonts, blurred, incomplete, ink dragging, missing printing, misalignment, overlapping, uneven smearing, etc., and even Cause ink to fall off, etc., seriously affecting the appearance quality of the toolbox