US20100122498A1 - Abrasive Sheet Including An Abrasive Layer - Google Patents
Abrasive Sheet Including An Abrasive Layer Download PDFInfo
- Publication number
- US20100122498A1 US20100122498A1 US12/609,349 US60934909A US2010122498A1 US 20100122498 A1 US20100122498 A1 US 20100122498A1 US 60934909 A US60934909 A US 60934909A US 2010122498 A1 US2010122498 A1 US 2010122498A1
- Authority
- US
- United States
- Prior art keywords
- abrasive
- adhesive layer
- web
- layer
- netted
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D11/00—Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
- B24D11/001—Manufacture of flexible abrasive materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D11/00—Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
- B24D11/02—Backings, e.g. foils, webs, mesh fabrics
Definitions
- This invention relates to an abrasive sheet, more particularly to an abrasive sheet including an abrasive layer.
- a conventional sheet of sandpaper 100 is formed by applying an adhesive to a fabric base 11 so as to form a first adhesive layer 12 , and spreading a plurality of abrasive particles 13 on the first adhesive layer 12 , followed by uniformly applying the adhesive to the abrasive particles 13 so as to form a second adhesive layer 14 .
- the abrasive particles 13 are very small in size and densely distributed, the spacing and depth among the abrasive particles 13 are also very small. In use, dust particles resulting from sanding of an object are likely to clog the spacing and depth among the abrasive particles 13 and cannot be removed easily, thereby reducing roughness and abrading efficiency of the sandpaper 100 .
- another conventional sandpaper 200 is formed by applying an adhesive to a fabric base 21 so as to form a first adhesive layer 23 , followed by attaching an abrasive web 22 to the first adhesive layer 23 .
- the abrasive web 22 is formed by spreading a plurality of abrasive particles on a web sheet and has a plurality of web holes 221 .
- the abrasive web 22 has an uneven surface, with a relatively large difference between high and low surface points due to the presence of the web holes 221 . Therefore, the dust particles resulting from a sanding process using the sandpaper 200 can be easily removed from the sandpaper 200 .
- the abrasive web 22 is attached to the fabric base 21 using only the first adhesive layer 23 , the structural strength of the sandpaper 200 is insufficient.
- parts of the first adhesive layer 23 and the fabric layer 21 beneath the web holes 221 are not covered by the abrasive particles, they are likely to be damaged by the dust particles produced upon sanding at a high temperature and a high speed. Therefore, when the sandpaper 200 is used with a grinding wheel machine at a high speed, the fabric base 21 and the abrasive web 22 can be easily separated from each other and become damaged.
- an object of the present invention is to provide an abrasive sheet that can overcome the aforesaid drawbacks associated with the prior art.
- an abrasive sheet comprises: a fabric base; a first adhesive layer applied to the fabric base; a netted web attached to the first adhesive layer, and having a plurality of web openings therein; a second adhesive layer applied to the netted web; an abrasive layer having a plurality of abrasive particles spread on the second adhesive layer; and a third adhesive layer applied to the abrasive layer.
- an abrasive sheet having high durability is made by a process that comprises: applying a first adhesive layer to a fabric sheet; attaching a netted web to the first adhesive layer, the netted web having a plurality of web openings so as to create an uneven surface on the netted web; applying a second adhesive layer to the uneven surface of the netted web, the second adhesive layer having an uneven surface substantially corresponding to the uneven surface of the netted web; spreading on the second adhesive layer a plurality of abrasive particles so as to form an abrasive layer, the abrasive layer having an uneven surface substantially corresponding to the uneven surface of the second adhesive layer, the abrasive particles filling the web openings of the netted web; and applying a third adhesive layer to the abrasive layer, the third adhesive layer having an uneven surface substantially corresponding to the uneven surface of the abrasive layer.
- FIG. 1 is a sectional view of a conventional sandpaper
- FIG. 2 is a partly exploded perspective view of another conventional sandpaper
- FIGS. 3 a to 3 f illustrate consecutive steps of the preferred embodiment of a method for making an abrasive sheet according to this invention.
- FIG. 4 is a sectional view of the preferred embodiment of the abrasive sheet according to this invention.
- FIGS. 3 a to 3 f and FIG. 4 illustrate an abrasive sheet 300 of a preferred embodiment according to this invention.
- the abrasive sheet 300 includes a fabric base 31 , a first adhesive layer 41 , a netted web 50 , a second adhesive layer 42 , an abrasive layer 60 , and a third adhesive layer 43 .
- the fabric base 31 is formed in the shape of a quadrangle.
- the fabric base 31 can be formed in the shape of a circle, strip, polygon, or ring.
- the first adhesive layer 41 is uniformly applied to the fabric base 31 .
- the netted web 50 is attached to the first adhesive layer 41 , and has a plurality of web openings 52 therein.
- the netted web 50 is a woven web.
- the web openings 52 are formed in the shape of a quadrangle. Alternatively, the web openings 52 can be formed in the shape of a circle, oval, triangle or polygon depending on actual requirements.
- the second adhesive layer 42 is uniformly applied to the netted web 50 and has an uneven surface corresponding to an uneven surface profile of the netted web 50 .
- the abrasive layer 60 has a plurality of abrasive particles 601 uniformly spread on the second adhesive layer 42 such that an abrasive surface conforming with the uneven surface of the second adhesive layer 42 is formed.
- the abrasive particles 601 are made of emery and have an arbitrary shape. It is worth mentioning that, in FIG. 4 , in order to clearly show the abrasive particles 601 which are distributed at both high and low surface points of the uneven surface of the second adhesive layer 42 , portions of the abrasive layer 6 within the web openings 52 are omitted and are shown as being bare. Actually, the web openings 52 are filled with the abrasive particles 601 .
- the abrasive web 50 is connected to the fabric base 31 through the first adhesive layer 41 .
- the third adhesive layer 43 is uniformly applied to the abrasive layer 60 and fills the clearances among the abrasive particles 601 so as to improve adhesion strength of the abrasive particles 601 .
- the third adhesive layer 43 also has an uneven surface conforming to the abrasive surface of the abrasive layer 60 .
- the abrasive sheet 300 is made by a method including the steps: (a) preparing the fabric sheet 31 , an adhesive, the netted web 51 and the abrasive particles 601 ; (b) applying the adhesive to the fabric sheet 31 so as to form the first adhesive layer 41 ; (c) attaching the netted web 50 to the first adhesive layer 41 such that the netted web 50 is connected to the fabric base 31 ; (d) applying the adhesive to the netted web 50 so as to form the second adhesive layer 42 ; (e) spreading on the second adhesive layer 42 the abrasive particles 601 so as to form the abrasive layer 60 ; and (f) applying the adhesive to the abrasive layer 60 so as to form the third adhesive layer 43 .
- the abrasive sheet 300 By forming the abrasive surface conforming with the uneven surface of the netted web 50 , the abrasive sheet 300 has a rough surface with a relatively large distance between high and low surface points, thereby alleviating the problem of clogging the abrasive sheet 300 . Moreover, as the web openings 52 are provided with the abrasive particles 601 , the fabric base 30 can be protected from being damaged by the dust particles produced upon sanding or grinding an object. In addition, by virtue of the first, second, and third adhesive layers 91 , 42 , 43 , clearances among the abrasive particles 601 can be filled, thereby enhancing adhesion strength and durability of the abrasive sheet 300 .
Abstract
An abrasive sheet includes a fabric base, a first adhesive layer applied to the fabric base, a netted web attached to the first adhesive layer and having a plurality of web openings therein, a second adhesive layer applied to the netted web, an abrasive layer having a plurality of abrasive particles spread on the second adhesive layer, and a third adhesive layer applied to the abrasive layer. A method of making the abrasive sheet is also disclosed.
Description
- This application claims priority of Taiwanese application No. 097144124, filed on Nov. 14, 2008.
- 1. Field of the Invention
- This invention relates to an abrasive sheet, more particularly to an abrasive sheet including an abrasive layer.
- 2. Description of the Related Art
- Referring to
FIG. 1 , a conventional sheet ofsandpaper 100 is formed by applying an adhesive to afabric base 11 so as to form a firstadhesive layer 12, and spreading a plurality ofabrasive particles 13 on the firstadhesive layer 12, followed by uniformly applying the adhesive to theabrasive particles 13 so as to form a secondadhesive layer 14. However, since theabrasive particles 13 are very small in size and densely distributed, the spacing and depth among theabrasive particles 13 are also very small. In use, dust particles resulting from sanding of an object are likely to clog the spacing and depth among theabrasive particles 13 and cannot be removed easily, thereby reducing roughness and abrading efficiency of thesandpaper 100. - Referring to
FIG. 2 , anotherconventional sandpaper 200 is formed by applying an adhesive to afabric base 21 so as to form a firstadhesive layer 23, followed by attaching anabrasive web 22 to the firstadhesive layer 23. Theabrasive web 22 is formed by spreading a plurality of abrasive particles on a web sheet and has a plurality ofweb holes 221. Theabrasive web 22 has an uneven surface, with a relatively large difference between high and low surface points due to the presence of theweb holes 221. Therefore, the dust particles resulting from a sanding process using thesandpaper 200 can be easily removed from thesandpaper 200. - However, since the
abrasive web 22 is attached to thefabric base 21 using only the firstadhesive layer 23, the structural strength of thesandpaper 200 is insufficient. In addition, since parts of the firstadhesive layer 23 and thefabric layer 21 beneath theweb holes 221 are not covered by the abrasive particles, they are likely to be damaged by the dust particles produced upon sanding at a high temperature and a high speed. Therefore, when thesandpaper 200 is used with a grinding wheel machine at a high speed, thefabric base 21 and theabrasive web 22 can be easily separated from each other and become damaged. - Therefore, an object of the present invention is to provide an abrasive sheet that can overcome the aforesaid drawbacks associated with the prior art.
- According to one aspect of the present invention, an abrasive sheet comprises: a fabric base; a first adhesive layer applied to the fabric base; a netted web attached to the first adhesive layer, and having a plurality of web openings therein; a second adhesive layer applied to the netted web; an abrasive layer having a plurality of abrasive particles spread on the second adhesive layer; and a third adhesive layer applied to the abrasive layer.
- According to another aspect of the present invention, an abrasive sheet having high durability is made by a process that comprises: applying a first adhesive layer to a fabric sheet; attaching a netted web to the first adhesive layer, the netted web having a plurality of web openings so as to create an uneven surface on the netted web; applying a second adhesive layer to the uneven surface of the netted web, the second adhesive layer having an uneven surface substantially corresponding to the uneven surface of the netted web; spreading on the second adhesive layer a plurality of abrasive particles so as to form an abrasive layer, the abrasive layer having an uneven surface substantially corresponding to the uneven surface of the second adhesive layer, the abrasive particles filling the web openings of the netted web; and applying a third adhesive layer to the abrasive layer, the third adhesive layer having an uneven surface substantially corresponding to the uneven surface of the abrasive layer.
- Other features and advantages of the present invention will become apparent in the following detailed description of the preferred embodiment of this invention, with reference to the accompanying drawings, in which:
-
FIG. 1 is a sectional view of a conventional sandpaper; -
FIG. 2 is a partly exploded perspective view of another conventional sandpaper; -
FIGS. 3 a to 3 f illustrate consecutive steps of the preferred embodiment of a method for making an abrasive sheet according to this invention; and -
FIG. 4 is a sectional view of the preferred embodiment of the abrasive sheet according to this invention. -
FIGS. 3 a to 3 f andFIG. 4 illustrate anabrasive sheet 300 of a preferred embodiment according to this invention. Theabrasive sheet 300 includes afabric base 31, a firstadhesive layer 41, anetted web 50, a secondadhesive layer 42, anabrasive layer 60, and a thirdadhesive layer 43. - In this embodiment, the
fabric base 31 is formed in the shape of a quadrangle. Alternatively, depending on actual requirements, thefabric base 31 can be formed in the shape of a circle, strip, polygon, or ring. - The first
adhesive layer 41 is uniformly applied to thefabric base 31. - The
netted web 50 is attached to the firstadhesive layer 41, and has a plurality ofweb openings 52 therein. In this embodiment, thenetted web 50 is a woven web. Theweb openings 52 are formed in the shape of a quadrangle. Alternatively, theweb openings 52 can be formed in the shape of a circle, oval, triangle or polygon depending on actual requirements. - The second
adhesive layer 42 is uniformly applied to thenetted web 50 and has an uneven surface corresponding to an uneven surface profile of thenetted web 50. - The
abrasive layer 60 has a plurality ofabrasive particles 601 uniformly spread on the secondadhesive layer 42 such that an abrasive surface conforming with the uneven surface of the secondadhesive layer 42 is formed. In this embodiment, theabrasive particles 601 are made of emery and have an arbitrary shape. It is worth mentioning that, inFIG. 4 , in order to clearly show theabrasive particles 601 which are distributed at both high and low surface points of the uneven surface of the secondadhesive layer 42, portions of the abrasive layer 6 within theweb openings 52 are omitted and are shown as being bare. Actually, theweb openings 52 are filled with theabrasive particles 601. Theabrasive web 50 is connected to thefabric base 31 through the firstadhesive layer 41. - The third
adhesive layer 43 is uniformly applied to theabrasive layer 60 and fills the clearances among theabrasive particles 601 so as to improve adhesion strength of theabrasive particles 601. The thirdadhesive layer 43 also has an uneven surface conforming to the abrasive surface of theabrasive layer 60. - The
abrasive sheet 300 is made by a method including the steps: (a) preparing thefabric sheet 31, an adhesive, the netted web 51 and theabrasive particles 601; (b) applying the adhesive to thefabric sheet 31 so as to form the firstadhesive layer 41; (c) attaching thenetted web 50 to the firstadhesive layer 41 such that thenetted web 50 is connected to thefabric base 31; (d) applying the adhesive to thenetted web 50 so as to form the secondadhesive layer 42; (e) spreading on the secondadhesive layer 42 theabrasive particles 601 so as to form theabrasive layer 60; and (f) applying the adhesive to theabrasive layer 60 so as to form the thirdadhesive layer 43. - By forming the abrasive surface conforming with the uneven surface of the
netted web 50, theabrasive sheet 300 has a rough surface with a relatively large distance between high and low surface points, thereby alleviating the problem of clogging theabrasive sheet 300. Moreover, as theweb openings 52 are provided with theabrasive particles 601, thefabric base 30 can be protected from being damaged by the dust particles produced upon sanding or grinding an object. In addition, by virtue of the first, second, and thirdadhesive layers abrasive particles 601 can be filled, thereby enhancing adhesion strength and durability of theabrasive sheet 300. - With the invention thus explained, it is apparent that various modifications and variations can be made without departing from the spirit of the present invention. It is therefore intended that the invention be limited only as recited in the appended claims.
Claims (5)
1. An abrasive sheet comprising:
a fabric base;
a first adhesive layer applied to said fabric base;
a netted web attached to said first adhesive layer, and having a plurality of web openings therein;
a second adhesive layer applied to said netted web;
an abrasive layer having a plurality of abrasive particles spread on said second adhesive layer; and
a third adhesive layer applied to said abrasive layer;
wherein said web openings are filled with said abrasive particles.
2. The abrasive sheet of claim 1 , wherein said fabric base is formed in the shape of a quadrangle, circle, strip, polygon, or ring.
3. The abrasive sheet of claim 1 , wherein said netted web is a woven web.
4. The abrasive sheet of claim 1 , wherein said web openings are formed in the shape of a quadrangle, circle, oval, triangle or polygon.
5. An abrasive sheet having high durability, which is made by a process that comprises:
applying a first adhesive layer to a fabric sheet;
attaching a netted web to the first adhesive layer, the netted web having a plurality of web openings so as to create an uneven surface on the netted web;
applying a second adhesive layer to the uneven surface of the netted web, the second adhesive layer having an uneven surface substantially corresponding to the uneven surface of the netted web;
spreading on the second adhesive layer a plurality of abrasive particles so as to form an abrasive layer, the abrasive layer having an uneven surface substantially corresponding to the uneven surface of the second adhesive layer, the abrasive particles filling the web openings of the netted web; and
applying a third adhesive layer to the abrasive layer, the third adhesive layer having an uneven surface substantially corresponding to the uneven surface of the abrasive layer.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW097144124 | 2008-11-14 | ||
TW097144124A TW201018548A (en) | 2008-11-14 | 2008-11-14 | Emery cloth and manufacturing method thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
US20100122498A1 true US20100122498A1 (en) | 2010-05-20 |
Family
ID=42170911
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/609,349 Abandoned US20100122498A1 (en) | 2008-11-14 | 2009-10-30 | Abrasive Sheet Including An Abrasive Layer |
Country Status (4)
Country | Link |
---|---|
US (1) | US20100122498A1 (en) |
JP (1) | JP3156892U (en) |
MY (1) | MY147384A (en) |
TW (1) | TW201018548A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110076568A1 (en) * | 2009-09-28 | 2011-03-31 | Stmicroelectronics (Tours) Sas | Method for forming a vertical thin-film lithium-ion battery |
US8870985B2 (en) | 2010-12-30 | 2014-10-28 | Saint-Gobain Abrasives, Inc. | Abrasive particle and method of forming same |
WO2018118695A1 (en) * | 2016-12-22 | 2018-06-28 | 3M Innovative Properties Company | Abrasive article and method of making the same |
CN113510633A (en) * | 2021-03-04 | 2021-10-19 | 镇江鼎辉磨具有限公司 | Soft sand paper and manufacturing process thereof |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112621584A (en) * | 2020-12-31 | 2021-04-09 | 郑州瑞特金刚石砂带有限公司 | Method for realizing ordered arrangement of superhard abrasives in superhard grinding tool |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6258138B1 (en) * | 1998-05-01 | 2001-07-10 | 3M Innovative Properties Company | Coated abrasive article |
US6482308B1 (en) * | 1998-09-21 | 2002-11-19 | Martin Wiemann | Canvas abrasive material and grinding process |
US20080261498A1 (en) * | 2007-04-20 | 2008-10-23 | Ching-Chi Chao | Abrasive belt for sanding device |
-
2008
- 2008-11-14 TW TW097144124A patent/TW201018548A/en unknown
-
2009
- 2009-10-30 US US12/609,349 patent/US20100122498A1/en not_active Abandoned
- 2009-11-06 JP JP2009007922U patent/JP3156892U/en not_active Expired - Fee Related
- 2009-11-10 MY MYPI20094769A patent/MY147384A/en unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6258138B1 (en) * | 1998-05-01 | 2001-07-10 | 3M Innovative Properties Company | Coated abrasive article |
US6482308B1 (en) * | 1998-09-21 | 2002-11-19 | Martin Wiemann | Canvas abrasive material and grinding process |
US20080261498A1 (en) * | 2007-04-20 | 2008-10-23 | Ching-Chi Chao | Abrasive belt for sanding device |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110076568A1 (en) * | 2009-09-28 | 2011-03-31 | Stmicroelectronics (Tours) Sas | Method for forming a vertical thin-film lithium-ion battery |
US8870985B2 (en) | 2010-12-30 | 2014-10-28 | Saint-Gobain Abrasives, Inc. | Abrasive particle and method of forming same |
WO2018118695A1 (en) * | 2016-12-22 | 2018-06-28 | 3M Innovative Properties Company | Abrasive article and method of making the same |
CN110087832A (en) * | 2016-12-22 | 2019-08-02 | 3M创新有限公司 | Abrasive product and preparation method thereof |
US11826883B2 (en) | 2016-12-22 | 2023-11-28 | Innovative Properties Company | Abrasive article and method of making the same |
CN113510633A (en) * | 2021-03-04 | 2021-10-19 | 镇江鼎辉磨具有限公司 | Soft sand paper and manufacturing process thereof |
Also Published As
Publication number | Publication date |
---|---|
JP3156892U (en) | 2010-01-21 |
MY147384A (en) | 2012-11-30 |
TW201018548A (en) | 2010-05-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |