Nonwoven fabric abrasive

Abstract

Abstract PURPOSE:To make surface grinding finish for uniform ground depth performable, by making up a nonwoven fabric mat carrying a concavoconvex pattern by means of heat embossing, while having abrasive grains contained in a convex fiber layer alone upon impregnation of a resin binder containing abrasive grains. CONSTITUTION:Utilizing a fusing point differential in a synthetic fiber and an inherent property of tacking thermoplastic synthetic resin, a concave part 1 being resinified as pressed into specified pattern form or random form by a heat emboss roll and an unpressed bulky convex part 2 both are formed whereby such a nonwoven fabric mat 3 carrying concavoconvex patterns over the whole surface is formed up. Next, a resin binder containing abrasive grains 4 or abrasive particles is impregnated, having these abrasive grains 4 contained in a fiber layer of the convex part 2 alone, thus a nonwoven fabric abrasive 5 is made up. In this connection, when it is made to be a spiral molding body, there is formed with an empty space 6 whereby heat radiative properties and cushion effects are secured. Thus, the abrasive grain contained convex part works at an acute angle so that such surface grinding as being uniform in ground depth and waveless is performable and, what is more, the occurrence of loading is reduced.

Inventors

• 👤 Hisayuki Takigawa
• 👤 滝川　久幸

Bibliographic Details