CLEANING BRUSH FOR TEST TUBE ON SHAFT TOP OF WHICH NONWOVEN CLOTH IS ATTACHED

摘要

PROBLEM TO BE SOLVED: To solve such a problem that a conventional cleaning tool for laboratory test tube is made by holding pig bristles between the twisted two metal wires, but greasy dirt is hard to clean and remove because the bristle is soft and also, the bristle is apt to fall off when scraping somewhat strongly.;SOLUTION: There is provided a cleaning brush for laboratory test tube made by attaching a polyester-based or polyamide-based nonwoven cloth on the top of a shaft made of bamboo, lumber, metal or the like so as to have an external diameter slightly slimmer than the internal diameter of the test tube to be cleaned and firmly fixing the nonwoven cloth to the shaft by using an adhesive or string. Thereby, not only usual dirt but also dirt having strong sticking tendency such as a tar strongly adhered to the test tube can be completely cleaned and removed.;COPYRIGHT: (C)2015,JPO&INPIT