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Title:
METHOD FOR MANUFACTURING SANDPAPER HAVING CUTOUT HOLE FORMED THEREON FOR POLISHING INDUSTRIAL COMPONENT AND SANDPAPER
Document Type and Number:
WIPO Patent Application WO/2019/103281
Kind Code:
A1
Abstract:
The present invention relates to sandpaper capable of polishing jewels, molds, and general industrial components. More particularly, the present invention provides a method for manufacturing sandpaper having a cutout hole formed thereon for polishing an industrial component and sandpaper, wherein sandpaper is cut into a predetermined length by a cutting machine so as to conform to the position of a spindle in a cutting process; multiple cutout holes are bored in a peripheral portion on one side of the sandpaper in the longitudinal direction by a boring device in a cutout hole boring process; the sandpaper is wound around one side portion of the spindle by a winding machine so as to make a sandpaper roll in a winding process; a tape is wound around one side portion of the sandpaper such that the sandpaper roll is not unwound, thereby temporarily fixing the same, in a taping process; an adhesive is applied to the side surface of the sandpaper roll in the taping winding direction such that one side portion of the wound sandpaper is firmly fixed in a bonding process; and the sandpaper roll is dried in a drying furnace for a predetermined time so as to cure the adhesive in a drying process, whereby the sandpaper has a structure, according to the manufacturing method, such that multiple cutout holes are formed on a peripheral portion on one side of the sandpaper in the longitudinal direction.

Inventors:
CHAE, Jongduck (401Ho, 36 Ttukseom-ro 47-gil,Gwangjin-gu, Seoul, 05062, KR)
Application Number:
KR2018/009344
Publication Date:
May 31, 2019
Filing Date:
August 14, 2018
Export Citation:
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Assignee:
CHAE, Jongduck (401Ho, 36 Ttukseom-ro 47-gil,Gwangjin-gu, Seoul, 05062, KR)
International Classes:
B24D11/00; B24D9/04
Foreign References:
KR19990044244A1999-06-25
JP2004330319A2004-11-25
KR20050046513A2005-05-18
KR101023749B12011-03-28
US20160051283A12016-02-25
Attorney, Agent or Firm:
SHIN, Kyoungho (10F 18, Teheran-ro 10-gilGangnam-gu, Seoul, 06234, KR)
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