A PLASTIC LIQUID STRAINER AND METHOD AND APPARATUS FOR FABRICATING SAME

摘要

A plastic liquid strainer (10) and a method and apparatus for the fabrication of same is described. The plastic strainer is a cone-shape strainer having a conical side wall (11), an apex end (12) and an open top end (13). The strainer is formed from a plastic film sheet (21) which forms a cone which is then perforated by using laser beams (32) so that a filtration section is made in the plastic and extends from the apex end of the cone. The filtration section (14) is comprised of a plurality of substantially circular holes (15) of predetermined size. The cone thus formed is particularly useful for filtering paints and is disposable after use. Because it uses plastic film material, the paint is substantially free from dust generated by paper filters or lint which were normally released by the cotton sieve sections. The filter does not stretch nor does it become soiled during use as with paper cone filters.