Invention Grant
US08522389B2 Manufacturing method of needle-shaped bristles having short taper length and a toothbrush by same manufacturing method
有权
通过相同的制造方法制造具有短锥形长度的针状刷毛和牙刷的制造方法
- Patent Title: Manufacturing method of needle-shaped bristles having short taper length and a toothbrush by same manufacturing method
- Patent Title (中): 通过相同的制造方法制造具有短锥形长度的针状刷毛和牙刷的制造方法
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Application No.: US12443120Application Date: 2006-11-29
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Publication No.: US08522389B2Publication Date: 2013-09-03
- Inventor: Young-Jun Kwon , Sung-Wook Kwon , Sung-Hwan Kwon
- Applicant: Young-Jun Kwon , Sung-Wook Kwon , Sung-Hwan Kwon
- Applicant Address: KR Paju, Gyunngi-Do
- Assignee: Best Whasung Co., Ltd.
- Current Assignee: Best Whasung Co., Ltd.
- Current Assignee Address: KR Paju, Gyunngi-Do
- Agency: Egbert Law Offices, PLLC
- Priority: KR10-2006-0113114 20061116
- International Application: PCT/KR2006/005098 WO 20061129
- International Announcement: WO2008/060005 WO 20080522
- Main IPC: A46D1/05
- IPC: A46D1/05
Abstract:
The present invention relates to a method of manufacturing a needle-shaped bristle having a short taper length. The method includes preparing a bundle of toothbrush bristles by mixing a polyester resin (a polyester resin other than a PTT resin) and a PTT resin in a ratio of 90˜40 to 10˜60 and spinning the mixture thereof; cutting the bundle of toothbrush bristles; and tapering the cut bundle of toothbrush bristles by immersing it into a chemical. According to the present invention, since needle-shaped bristles having a taper length of 6 mm or less can be efficiently obtained, the needle-shaped bristles can be implanted even in an anchorless toothbrush.
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