US20110233988A1 - Method for tapering bristle of a toothbrush by a mechanical method - Google Patents

Method for tapering bristle of a toothbrush by a mechanical method Download PDF

Info

Publication number
US20110233988A1
US20110233988A1 US13/122,868 US200913122868A US2011233988A1 US 20110233988 A1 US20110233988 A1 US 20110233988A1 US 200913122868 A US200913122868 A US 200913122868A US 2011233988 A1 US2011233988 A1 US 2011233988A1
Authority
US
United States
Prior art keywords
grinding
bristle
protrusions
toothbrush
drums
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
Application number
US13/122,868
Other languages
English (en)
Inventor
Young-Jun Kwon
Sung-Wook Kwon
Sung-Hwan Kwon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Best Whasung Co Ltd
Original Assignee
Best Whasung Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Best Whasung Co Ltd filed Critical Best Whasung Co Ltd
Assigned to BEST WHASUNG CO., LTD. reassignment BEST WHASUNG CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KWON, SUNG-HWAN, KWON, SUNG-WOOK, KWON, YOUNG-JUN
Publication of US20110233988A1 publication Critical patent/US20110233988A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D1/00—Bristles; Selection of materials for bristles
    • A46D1/10—Vibrating devices for arranging bristles
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D9/00—Machines for finishing brushes
    • A46D9/02—Cutting; Trimming
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D1/00—Bristles; Selection of materials for bristles
    • A46D1/02—Bristles details
    • A46D1/0276—Bristles having pointed ends
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D1/00—Bristles; Selection of materials for bristles
    • A46D1/04—Preparing bristles
    • A46D1/06—Machines or apparatus for cutting bristles
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B2200/00—Brushes characterized by their functions, uses or applications
    • A46B2200/10—For human or animal care
    • A46B2200/1066—Toothbrush for cleaning the teeth or dentures

Definitions

  • the present invention relates, in general, to a method of tapering the bristle of a toothbrush and, more particularly, to a method of tapering the bristle of a toothbrush by a mechanical method using grinding drums which have protrusions.
  • the toothbrush having the needle-shaped bristles is better in terms of softness and in its ability to penetrate between teeth or into a periodontal pocket. For the reason, recently, most high-quality toothbrushes have needle-shaped bristles.
  • Methods of manufacturing a needle-shaped bristle include (i) a method of dissolving the end of a bristle using strong acid or strong alkali, (ii) a method of grinding the end of a bristle using a grinder after implanting the bristle into a toothbrush, (iii) a method of performing a preliminary tapering operation using the method (i), implanting a bristle into a toothbrush, and thereafter grinding the end of the bristle using the method (ii), etc.
  • the “preliminary tapering operation” is the operation which is performed such that the end of the bristle is tapered less than a target tapered degree, in other words, the end has the thickness of about 0.03 to 0.10 mm.
  • the method (i) can make a highly tapered needle-shaped bristle which has a relatively long tapered length of 5 mm or more and an end thickness of about 0.01 mm.
  • a needle-shaped bristle is long in a tapered portion thereof, so that softness is excellent, and is thin in an end thereof, so that penetration ability is excellent.
  • this method is problematic in that it is difficult to precisely control a dissolving time during the tapering operation, a defective ratio is high, and the working environment is very poor.
  • the method (ii) is excellent in terms of work efficiency, but is problematic in that the obtained needle-shaped bristle has a short tapered length of 2 mm or less, so that softness is poor, and thus the gums may be damaged when a user brushes his or her teeth.
  • the method (iii) solves the problems of the methods (i) and (ii) to some extent, and is disclosed in Korean Patent Nos. 261658 and 421454 which were filed by the inventor of the present invention.
  • Korean Patent No. 261658 a bristle is immersed and dissolved in a strong acid or strong alkali solution until shortly before the bristle gets short.
  • the bristle is washed in water and dried, and then is implanted in a head of a toothbrush.
  • the end of the bristle is ground by a grinder.
  • the needle-shaped bristle obtained by this method is advantageous in that a length of the tapered portion thereof is about 5 mm which is long, so that softness is excellent.
  • the needle-shaped bristle is problematic in that a thickness of the end thereof is 0.04 to 0.08 mm which is relatively large, so that the ability to penetrate is low. If a grinding operation is further performed to reduce the thickness of the end, the length of the tapered portion is reduced, so that softness becomes poor.
  • Korean Patent No. 421454 is similar to Korean Patent No. 261658, but performs a grinding operation so that the thickness of an end is 0.02 mm or less so as to improve penetration ability.
  • this method is advantageous in that the penetration ability is excellent.
  • this method is problematic in that the length of the tapered portion is only 2.8 to 3.5 mm, so that softness is poor and a defective ratio is high in a manufacturing process.
  • Korean Patent No. 666457 (hereinafter, referred to as “prior art”) which was filed by the inventor of the present invention has been proposed.
  • an end of an ordinary bristle which is not tapered is ground by a drum-type grinder which includes protrusions 11 having the height of 1.5 to 7 mm and the distance of 1 to 5 mm therebetween, and is rotated in vertical and horizontal directions” (see FIG. 1 ).
  • An end of a needle-shaped bristle obtained by this method has the diameter of 0.01 to 0.02 mm, and a tapered portion of the needle-shaped bristle has the length of 3 to 7 mm.
  • the diameter of the end and the length of the tapered portion are almost equal to those of a needle-shaped bristle obtained by a chemical immersion method.
  • the prior art provides the needle-shaped bristle having a desired end thickness and a desired tapered length without immersing the bristle in chemicals.
  • the bristle made by the prior art is problematic in that thermal deformation may occur because of heat generated during the grinding operation.
  • the thermal deformation leads to the bending of the bristle, thus lowering quality.
  • a bristle is ground using a drum-type grinder having no protrusion 11 (a first grinding operation), is ground using a drum-type grinder having protrusions 11 (second and third grinding operations), and is finally finished using a rotary drum having fibers on a surface thereof (a fourth grinding operation).
  • this method is also problematic in that the rotating speed of the grinder is 500 to 1500 rpm in the second grinding operation and is 1000 to 2000 rpm in the third grinding operation, so that the rotating speed is very high, and thus the thermal deformation of the obtained bristle cannot be avoided.
  • the thermal deformation causes the bending to the end of a tapered portion, and leads to the bristle being irregularly ground, so that the product has no marketability.
  • an object of the present invention is to provide a method of tapering a bristle of a toothbrush, which tapers the bristle of the toothbrush by a mechanical method, in addition to preventing thermal deformation.
  • Another object of the present invention is to provide a method of tapering a bristle of a toothbrush, which has improved work efficiency.
  • the present invention provides a method of tapering a bristle of a toothbrush using grinding drums that have protrusions and rotate in vertical and horizontal directions, in which the grinding drums having the protrusions of different heights are continuously arranged and a toothbrush having a non-tapered ordinary bristle passes through the grinding drums in sequence, thus grinding the end of the bristle that is implanted into the toothbrush.
  • the “implanted toothbrush” includes a toothbrush to which bristles are fixed with an anchor and a toothbrush to which bristles are fixed without an anchor.
  • the implanted toothbrush includes toothbrushes in which bristles are implanted in various forms and toothbrushes having bristles which are implanted and thereafter are cut in a specific shape.
  • FIG. 1 is a perspective view showing a grinding drum used in the present invention
  • FIG. 2 is a partially enlarged view showing the bristle of a toothbrush which is ground between protrusions;
  • FIG. 3 is a partially enlarged view showing conical protrusions.
  • FIG. 1 A grinding drum applied to the present invention is shown in FIG. 1 .
  • the grinding drum 10 has a great number of protrusions 11 on a surface thereof, and is connected to a rotor 30 via a rotating shaft 20 so that the grinding drum 10 can be rotated both vertically and horizontally.
  • the proper height of the protrusions 11 is 1.5 mm to 7.0 mm. If a bristle is ground by the grinding drum 10 , a needle-shaped bristle whose tapered portion has the length of 5 mm or more is obtained, as described above.
  • heat generated during the grinding operation is thoroughly controlled and the bristle does not undergo thermal deformation.
  • the method of controlling heat generated during the grinding operation uses a method of reducing the rpm of the grinding drum under a specific range and a method of controlling the height of the protrusions 11 .
  • the vertical rpm must be controlled to within 200 to 500 rpm, preferably, 250 to 480 rpm.
  • the rpm exceeds the above range, thermal deformation occurs.
  • the horizontal rpm be about 1 ⁇ 3 of the vertical rpm.
  • the objects of the present invention are not achieved merely by adjusting the rpm of the grinding drum. Even when the grinding operation is performed by the grinding drum which has the protrusions 11 of the same height and rotates at low speed, thermal deformation occurs. The reason is as follows. That is, in order to obtain the bristle having a tapered portion of a desired length, the grinding drum having the protrusions 11 of 3 mm or more, preferably, 5 mm or more, must be used. However, if such a grinding drum is used, frictional heat is unavoidably accumulated in a space between the protrusions 11 , and heat dissipating ability is poor.
  • the rpm of the grinding drum is reduced, and several grinding drums are connected to each other in parallel so that the grinding operation is performed in sequence.
  • the height adjustment of the protrusions 11 is a factor which is important to control heat.
  • the protrusions 11 function to increase the length of the tapered portion, and are selected from the range of 1.5 to 7.0 mm.
  • the protrusions 11 of the grinding drums which perform the initial stage of the grinding operation preferably range from 5 to 7 mm. Thereby, a tapered portion of a desired length is realized.
  • the protrusions 11 of the grinding drums that participate in the middle stage of the grinding operation have the height of 3 to 5 mm
  • the protrusions 11 of the grinding drums that participate in the late stage of the grinding operation have the height of 1.5 to 3.0 mm.
  • the height of the protrusions 11 formed on the grinding drums is sequentially decreased as such, the tapered portion of a desired length is achieved, and in addition, the frictional heat generated by friction is considerably reduced. Further, the generated frictional heat is easily dissipated to the outside, thus effectively preventing the bristle from being thermally deformed. Further, as the height of the protrusions 11 is sequentially decreased, the end of the bristle is in continuous contact with the bottom denoted by “P” in FIG. 2 and located between the protrusions 11 of each grinding drum. Thereby, the bristle is highly ground until the thickness of its end is 0.02 mm or less.
  • the meaning of “the sequential decrease in the height of the protrusions 11 ” includes the complete sequential arrangement from high protrusions 11 to low protrusions as in the embodiment of the present invention, and also includes the arrangement wherein many high protrusions 11 are placed in a section where the grinding operation starts and many low protrusions 11 are placed in a section where the grinding operation is finished even if the heights of protrusions located in a section do not sequentially vary.
  • an interval between the protrusions 11 be about 1 to 5 mm. Further, assuming that each protrusion 11 has a cylindrical shape, the protrusion preferably has a diameter of about 1 to 3 mm.
  • the protrusion 11 may have a cylindrical shape as in FIG. 2 or may have a conical shape as in FIG. 3 .
  • a higher quality needle-shaped bristle is achieved. That is, if the grinding drums participating in the initial stage of the grinding operation are coated with grinding stone of 200 to 300 mesh, the grinding drums participating in the middle stage of the grinding operation are coated with grinding stone of 300 to 700 mesh, and the grinding drums participating in the late stage of the grinding operation are coated with grinding stone of 700 to 1000 mesh, a coarse surface formed in the grinding operation becomes very smooth, so that a needle-shaped bristle which has the same high quality as a bristle manufactured by chemical treatment is realized.
  • each grinding drum may reciprocate in a direction perpendicular to the direction the toothbrush moves in during the grinding operation.
  • the reciprocating motion of the grinding drum can evenly distribute frictional heat generated by friction throughout the grinding drum, and can prolong the life-span of the grinding drum.
  • the distance of proper reciprocating motion is 5 to 10 cm.
  • the present invention provides a highly tapered needle-shaped bristle in which the length of a tapered portion thereof is 5 mm or more and the thickness of an end thereof is 0.02 mm or less even without undergoing a chemical immersion process, in addition to preventing thermal deformation from occurring during a tapering process using a mechanical method. Further, no chemicals are used, so that the working environment is considerably improved, and the cost of a product is lowered. Furthermore, the scraping of bristles and dust generated during a grinding operation are collected and are recycled as the handle of a toothbrush or the like, so that this method is environment-friendly, and can prevent the loss of resources.
  • An interval between protrusions 11 of a grinding drum used in the following embodiments is 2 mm for all of the embodiments.
  • Protrusions 11 having the heights of 7.0, 6.6, 6.2, 5.8, 5.4, 5.0, 4.6, 4.2, 3.8, 3.4, 3.0, 2.6, 2.2, 1.8, and 1.5 mm are formed, and 15 grinding drums rotating vertically and horizontally are arranged in sequence from left to right. Next, an ordinary bristle of a toothbrush which is not tapered undergoes a grinding operation starting from the left grinding drum.
  • each grinding drum is 2.5 seconds, and the vertical rotating speed of the grinding drums are as follows: the vertical rotating speed of the first, second, and third grinding drums is 300 rpm, the vertical rotating speed of the fourth, fifth, and sixth grinding drums is 485 rpm, the vertical rotating speed of the seventh, eighth, and ninth grinding drums is 490 rpm, the vertical rotating speed of the tenth, eleventh, and twelfth grinding drums is 495 rpm, and the vertical rotating speed of the thirteenth, fourteenth, and fifteenth grinding drums is 450 rpm.
  • the horizontal rotating speed is set to be 1 ⁇ 3 of the vertical rotating speed.
  • each grinding drum is constructed to reciprocate by the distance of 5 cm in a direction perpendicular to the direction in which the toothbrush moves.
  • the protrusions 11 of the first to fifth grinding drums are coated with grinding stone of 200 mesh
  • those of the sixth to eighth grinding drums are coated with grinding stone of 350 mesh
  • those of the ninth to eleventh grinding drums are coated with grinding stone of 550 mesh
  • those of the twelfth to fifteenth grinding drums are coated with grinding stone of 850 mesh.
  • the length of the tapered portion of the bristle processed in this way is 6 mm, and the thickness of the end thereof is 0.03 mm.
  • Protrusions 11 having the heights of 7.0, 6.7, 6.4, 6.1, 5.8, 5.5, 5.2, 4.9, 4.6, 4.3, 4.0, 3.7, 3.4, 3.1, 2.8, 2.5, 2.2, 1.9, 1.8, 1.6, and 1.5 mm are formed, and 21 grinding drums rotating vertically and horizontally are arranged in sequence from left to right. Next, an ordinary bristle of a toothbrush which is not tapered undergoes a grinding operation starting from the left grinding drum.
  • the grinding time of each grinding drum is 2.5 seconds, and the vertical rotating speed of the grinding drums are as follows: the vertical rotating speed of the first, second, and third grinding drums is 250 rpm, the vertical rotating speed of the fourth, fifth, and sixth grinding drums is 470 rpm, the vertical rotating speed of the seventh, eighth, and ninth grinding drums is 475 rpm, the vertical rotating speed of the tenth, eleventh, twelfth, thirteenth, fourteenth, and fifteenth grinding drums is 480 rpm, the vertical rotating speed of the sixteenth, seventeenth, and eighteenth grinding drums is 460 rpm, and the vertical rotating speed of the nineteenth, twentieth, and twenty-first grinding drums is 450 rpm.
  • the horizontal rotating speed is set to be 1 ⁇ 3 of the vertical rotating speed.
  • the reciprocating motion of each grinding drum is the same as that of the first embodiment.
  • the protrusions 11 of the first to fifth grinding drums are coated with grinding stone of 200 mesh
  • those of the sixth to eighth grinding drums are coated with grinding stone of 350 mesh
  • those of the ninth to eleventh grinding drums are coated with grinding stone of 550 mesh
  • those of the twelfth to sixteenth grinding drums are coated with grinding stone of 850 mesh
  • those of the seventeenth to twenty-first grinding drums are coated with grinding stone of 1000 mesh.
  • the length of the tapered portion of the bristle processed in this way is 7 mm, and the thickness of the end thereof is 0.02 mm or less (0.01 to 0.02 mm).
  • Protrusions 11 having the height of 7 mm are installed on the first to fourth grinding drums, protrusions 11 having the height of 5 mm are installed on the fifth to eighth grinding drums, protrusions 11 having the height of 3 mm are installed on the ninth to twelfth grinding drums, and protrusions 11 having the height of 1.5 mm are installed on the thirteenth to fifteenth grinding drums.
  • the remaining construction remains the same as the first embodiment.
  • the length of the tapered portion of the bristle processed in this way is 6 mm, and the thickness of the end thereof is 0.02 mm.
  • a bristle is ground using 15 grinding drums.
  • the protrusions 11 having the same height of 5 mm are used.
  • the grinding time of each grinding drum is 2.5 seconds, and the rotating speed of the grinding drums and the meshes of the grinding stone for coating are set to be the same as the first embodiment.
  • the length of the tapered portion of the obtained bristle is 4 mm, and the thickness of the end thereof is 0.04 mm. Because of frictional heat, the bristle is deformed. That is, an end of the bristle is bent.
  • the second comparative example is performed under the same condition as the first embodiment except that the vertical rotating speed is increased to 1,000 rpm and the horizontal rotating speed is increased to 330 rpm.
  • the bristle processed according to the second comparative example has the same tapered length and the same end thickness as the bristle processed according to the first embodiment, but is thermally deformed.
  • Protrusions 11 formed on each grinding drum have the same height of 6 mm, and the grinding method is performed as in the third embodiment. That is, the position of each grinding drum is adjusted such that each of the first to fourth grinding drums is in contact with a portion from an end of a bristle to 6 mm, each of the fourth to eighth grinding drums is in contact with a portion from an end of a bristle to 5 mm, each of the eighth to twelfth grinding drums is in contact with a portion from an end of a bristle to 3 mm, and each of the thirteenth to fifteenth grinding drums is in contact with a portion from an end of a bristle to 1.5 mm. The remaining operation is performed as in the first embodiment.
  • the tapered length of the obtained bristle is similar to that of the third embodiment. However, some thermal deformation is observed, and the thickness of an end is 0.05 mm. As a result, the result of grinding is defective.

Landscapes

  • Brushes (AREA)
US13/122,868 2008-10-27 2009-08-31 Method for tapering bristle of a toothbrush by a mechanical method Abandoned US20110233988A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
KR10-2008-0105153 2008-10-27
KR20080105153 2008-10-27
KR10-2009-0030366 2009-04-08
KR1020090030366A KR100900805B1 (ko) 2008-10-27 2009-04-08 기계적 방법에 의한 칫솔모의 테이퍼 가공방법
PCT/KR2009/004864 WO2010050671A2 (ko) 2008-10-27 2009-08-31 기계적 방법에 의한 칫솔모의 테이퍼 가공방법

Publications (1)

Publication Number Publication Date
US20110233988A1 true US20110233988A1 (en) 2011-09-29

Family

ID=40982221

Family Applications (1)

Application Number Title Priority Date Filing Date
US13/122,868 Abandoned US20110233988A1 (en) 2008-10-27 2009-08-31 Method for tapering bristle of a toothbrush by a mechanical method

Country Status (8)

Country Link
US (1) US20110233988A1 (ko)
EP (1) EP2353433A4 (ko)
JP (1) JP5603874B2 (ko)
KR (1) KR100900805B1 (ko)
CN (1) CN102186377B (ko)
AU (1) AU2009310757B2 (ko)
RU (1) RU2470564C1 (ko)
WO (1) WO2010050671A2 (ko)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD754443S1 (en) 2014-06-11 2016-04-26 Colgate-Palmolive Company Oral care implement
US10244857B2 (en) 2016-08-29 2019-04-02 Colgate-Palmolive Company Oral care implement and filament for the same

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012023122B4 (de) * 2012-11-27 2023-09-28 Zahoransky Ag Vorrichtung zur Nachbearbeitung von Borstenbündeln
CN108451157A (zh) * 2018-05-16 2018-08-28 好维股份有限公司 一种模拟人体口腔刷牙的牙刷测试装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5893612A (en) * 1995-12-13 1999-04-13 Firma G.B. Boucherie, Naamloze Vennootschap Apparatus and method for rounding fiber ends of brushes
US20040090108A1 (en) * 2000-04-04 2004-05-13 Firma G.B. Boucherie, N.V. Method and device for manufacturing brushes
US20080197693A1 (en) * 2005-06-03 2008-08-21 Young-Jun Kwon Method of Manufacturing Toothbrush with Needle-Shaped Bristles, and Toothbrush Manufactured by the Same
US20080315669A1 (en) * 2004-12-08 2008-12-25 Young-Jun Kwon Method of Manufacturing Toothbrush With Needle-Shaped Bristles and Toothbrush Manufactured by the Same

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1009884A3 (nl) * 1995-12-13 1997-10-07 Boucherie Nv G B Werkwijze en inrichting voor het afronden van borstelvezels.
JP3611410B2 (ja) * 1996-10-02 2005-01-19 赤田刷毛工業株式会社 歯ブラシの加工方法
CN2337837Y (zh) * 1998-02-16 1999-09-15 王贵戊 牙刷修毛机的改良构造
KR100256905B1 (ko) * 1998-02-24 2000-05-15 정봉옥 칫솔 솔부 가공 및 포장의 자동화 시스템
KR100261658B1 (ko) 1998-03-19 2000-07-15 권영준 테이퍼링형치솔의제조방법
KR100421454B1 (ko) 2001-02-23 2004-03-09 씨제이 주식회사 탄력성이 우수한 고도 테이퍼링 칫솔모가 식모된 칫솔 및그 제조방법
KR100464634B1 (ko) * 2002-12-03 2005-01-03 권영준 일측 테이퍼 된 침상모가 식모된 칫솔 및 그 제조방법
MXPA04007627A (es) * 2002-12-03 2004-11-10 Young Jun Kwon Cepillo de dientes que tiene cerdas en forma de aguja ahusadas en un extremo y metodo de fabricacion del mismo.
KR101253795B1 (ko) * 2005-06-29 2013-04-12 라이온 가부시키가이샤 브러시의 제조 방법, 제조 장치, 및 브러시
JP4959240B2 (ja) * 2006-06-28 2012-06-20 ライオン株式会社 ブラシの製造方法及び製造装置
KR20080084625A (ko) * 2007-03-13 2008-09-19 주식회사 베스트화성 생산효율이 향상된 칫솔모의 테이퍼 가공방법
JP5319105B2 (ja) * 2007-12-07 2013-10-16 ヨン ジュン クォン 針状毛が植毛された歯ブラシの製造方法およびこれによって製造された歯ブラシ

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5893612A (en) * 1995-12-13 1999-04-13 Firma G.B. Boucherie, Naamloze Vennootschap Apparatus and method for rounding fiber ends of brushes
US20040090108A1 (en) * 2000-04-04 2004-05-13 Firma G.B. Boucherie, N.V. Method and device for manufacturing brushes
US20080315669A1 (en) * 2004-12-08 2008-12-25 Young-Jun Kwon Method of Manufacturing Toothbrush With Needle-Shaped Bristles and Toothbrush Manufactured by the Same
US20080197693A1 (en) * 2005-06-03 2008-08-21 Young-Jun Kwon Method of Manufacturing Toothbrush with Needle-Shaped Bristles, and Toothbrush Manufactured by the Same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD754443S1 (en) 2014-06-11 2016-04-26 Colgate-Palmolive Company Oral care implement
US10244857B2 (en) 2016-08-29 2019-04-02 Colgate-Palmolive Company Oral care implement and filament for the same
US11445810B2 (en) 2016-08-29 2022-09-20 Colgate-Palmolive Company Oral care implement and filament for the same

Also Published As

Publication number Publication date
JP5603874B2 (ja) 2014-10-08
EP2353433A4 (en) 2017-08-02
WO2010050671A2 (ko) 2010-05-06
AU2009310757B2 (en) 2011-10-06
WO2010050671A3 (ko) 2010-07-08
RU2470564C1 (ru) 2012-12-27
JP2012506723A (ja) 2012-03-22
KR100900805B1 (ko) 2009-06-04
CN102186377A (zh) 2011-09-14
CN102186377B (zh) 2014-03-12
EP2353433A2 (en) 2011-08-10
AU2009310757A1 (en) 2010-05-06

Similar Documents

Publication Publication Date Title
KR100666457B1 (ko) 침상모가 식모된 칫솔의 제조방법 및 이에 의하여 제조된칫솔
EP2083653B1 (en) Manufacturing method of needle-shaped bristle having short taper length
US20110233988A1 (en) Method for tapering bristle of a toothbrush by a mechanical method
EP2460436B1 (en) Toothbrush with needle-shaped bristles for improving tooth and gum contacting force and teeth-cleaning performance, and method for manufacturing same
JP5090164B2 (ja) ブラシの製造方法、製造装置、およびブラシ
JP4795363B2 (ja) 針状毛の植毛された歯ブラシ及びその製造方法
CN1371645A (zh) 高度锥形刷毛具有良好柔韧性的牙刷及其制造方法
CN1589697A (zh) 刷子及包含这种刷子的包装和涂抹器装置
CN104042031B (zh) 一种机动冲擦头
CN216534278U (zh) 一种刷子和清洁装置
WO2019102044A1 (en) Method of rapid prototyping a bristle field for a toothbrush
JP2008136712A (ja) ブラシまたは筆に用いるポリエステル系繊維の製造方法

Legal Events

Date Code Title Description
AS Assignment

Owner name: BEST WHASUNG CO., LTD., KOREA, REPUBLIC OF

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KWON, YOUNG-JUN;KWON, SUNG-WOOK;KWON, SUNG-HWAN;REEL/FRAME:026419/0504

Effective date: 20110529

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION