KR930701271A - Abrasive printed with electrically conductive ink - Google Patents

Abstract

The present invention relates to a coated abrasive article incorporating a printed coating layer of electroconductive ink in its structure to reduce or eliminate the buildup of static electricity during use of the coated abrasive article.

Another aspect of the invention also teaches a method of making the coated abrasive article.

Description

Abrasive printed with electrically conductive ink

Since this is an open matter, no full text was included.

1-2 are enlarged cross-sectional views of various specific coated abrasive articles made in accordance with the present invention.

Claims (21)

A coated abrasive article having a reduced tendency to accumulate electrostatic charge during polishing of an electrically insulated workpiece, the coated abrasive product comprising: (a) a backing having a front face and a back face; And (b) an abrasive layer bonded to the entire surface of the backing, the abrasive layer comprising a make layer and a size layer; Make layer, size layer, and supersize layer; Slurry layer; And abrasive grains and layer (s) selected from the group consisting of a slurry layer and a persized layer, wherein each of the make layer, the size layer, the slurry layer, and the different supersized layer each comprises a top surface. And (i) hardened on at least one of the back surface of the backing, the front surface of the backing, the top surface of the make layer, the top surface of the size layer, the top surface of the slurry layer and the top surface of the supersize layer. A patterned coating layer of electrically conductive ink; (Ii) a continuous coating layer of electrically conductive ink printed on the back side of the backing; And (iii) at least one of a continuous coating layer of electrically conductive ink printed on the front side of the backing, wherein the region of the pattern described above is discontinuous if the above pattern is applied to the back side of the backing or to the front side of the backing. And if not the area, the area of the pattern is non-bonded and the cured electrically conductive ink contains a sufficient amount of conductive material to reduce the buildup of electrostatic charge during polishing of the electrically insulating workpiece. Provided that the above-mentioned amount of the electrically conductive material in any one continuous coating layer of the electrically conductive ink is 5 g / m 2 or less. The coated abrasive article of claim 1, wherein each of the aforementioned pattern coating layers of the cured electrically conductive ink comprises 5 g / m 2 or less of the aforementioned electrically conductive material. The coated abrasive article of claim 1, wherein each of the pattern coating layers of the cured electrically conductive ink comprises less than or equal to 3 g / m 2 of electrically conductive material. The coated abrasive product of Claim 1, wherein the coating layer of the cured electrically conductive ink has a surface resistivity of 5000 kiloohms / square or less. The coated abrasive product of Claim 1, wherein the coating layer of the cured electrically conductive ink has a surface resistivity of 2000 kiloohms / square or less. The coated abrasive product of Claim 1, wherein the electrically conductive material is selected from the group consisting of graphite, carbon black, metals, metal alloys, and mixtures thereof. The method of claim 1, wherein the cured electrically conductive ink is anhydrous cottonseed oil, cured alkyd resin, cured phenolic resin, cured acrylate resin, anhydrous glue, cured melamine formaldehyde resin, cured urea formaldehyde resin And a cured polymerizable medium selected from the group consisting of cured epoxy resins, cured urethane resins, and mixtures thereof. The coated abrasive product of Claim 1, wherein the backing is selected from the group consisting of paper, polymeric film, fiber, nonwoven fibrous material, fabrics, processing variants thereof, and composites thereof. The abrasive grain of claim 1 wherein the abrasive particles comprise molten aluminum oxide, ceramic aluminum oxide, co-melted alumina-zirconia, silicon carbide, diamond, isotropic boron nitride, garnet, heat-treated aluminum oxide and mixtures thereof. Cloth abrasive product, characterized in that it is selected from the crowd consisting. The coated abrasive article according to claim 1, wherein the coated abrasive product has a continuous coating layer of the cured electrically conductive ink printed on the back side of the backing and a control mark printed on the continuous coating layer. The method of claim 1 wherein the cured electrically conductive ink further comprises a cured curable medium, wherein the aforementioned electrically conductive material and the above cured curable medium have a weight ratio of the electrically conductive material to the cured curable medium. A coated abrasive product, characterized in that it is included in a proportion greater than 1:10. The curable electrically conductive ink of claim 1 further comprising a cured curable medium, wherein the aforementioned electrically conductive material and the above cured curable medium comprise a weight ratio of the electrically low aging material to the cured curable medium. Coated abrasive product, characterized in that it is contained in a proportion greater than 1: 1. The method of claim 1, wherein the cured electrically conductive ink further comprises a cured curable medium, wherein the aforementioned electrically conductive material and the above cured curable medium have a weight ratio of the electrically conductive material to the cured curable medium. A coated abrasive product, characterized in that it is included in a proportion greater than 4: 1. A method of making a coated abrasive article having a reduced tendency to accumulate electrostatic charge during polishing of an electrically insulating workpiece, the method comprising: (a) selecting a backing having a front side and a back side; And (b) applying an abrasive layer to the entire surface of the backing, the abrasive layer comprising a make layer and a size layer; Make layer, size layer, and supersize layer; Slurry layer; And abrasive grains and layer (s) selected from the group consisting of a slurry layer and a supersize layer, wherein the make layer, the size layer, the slurry layer, and the supersize layer, each having a top surface, And (c) (iii) at least one of the back surface of the backing, the front surface of the backing, the top surface of the make layer, the top surface of the size layer, the top surface of the slurry layer, and the top surface of the supersize layer. A pattern of electrically conductive ink; (Ii) a continuous coating layer of said coatable electrically conductive ink on the back side of said backing; And (iii) at least one of a continuous coating layer of the coatable electrically conductive ink on the front surface of the backing, wherein the region of the pattern described above is the pattern described above on the back surface of the backing or on the front surface of the backing. If applied, it is discontinuous and, if not, the area of the pattern is non-junctional, and the coatable electrically conductive ink is suitable for coating abrasive products that tend to reduce the buildup of electrostatic charge during polishing of the electrically insulating workpiece upon curing. A sufficient amount of electrically conductive material to provide; And (d) providing a coated abrasive having a tendency to reduce the accumulation of electrostatic charge during polishing of electrically insulating workpieces if the above described amount of electrically conductive material in any one continuous coating layer of the electrically conductive ink is less than 5 g / m 2. Curing the electrically conductive ink to The method of claim 14, wherein each of the patterned coating layers on which the cured electrically conductive ink is printed comprises less than or equal to 5 g / m 2 of the electrically conductive material. 15. The method of claim 14, wherein the cured electrically conductive ink has a surface resistivity of 5000 kiloohms / square or less. 15. The method of claim 14, wherein the electrically conductive material is selected from the group consisting of graphite, carbon black, metals, metal alloys, and mixtures thereof. 15. The method of claim 14, wherein the continuous coating layer of curable electrically conductive ink is applied to the back side described above in step (c), and further comprising (e) printing a control mark on the continuous coating layer. . 15. The method of claim 14, wherein the coatable curable electrically conductive ink further comprises a curable medium having a solid, wherein the electrically conductive material and the coatable curable medium are formed of an electrically conductive material for the solid of the coatable, curable medium. Wherein the weight ratio comprises greater than 1:10. 15. The method of claim 14, wherein the coatable curable electrically conductive ink comprises a curable medium having a solid, wherein the electrically conductive material and the coatable curable medium are weight ratios of the electrically conductive material to the solid of the coatable, curable medium. Is contained at a ratio greater than 1: 1. ※ Note: The disclosure is based on the initial application.