JP2000308524A - Tooth brush having rod-like projections and its production - Google Patents

Tooth brush having rod-like projections and its production

Info

Publication number
JP2000308524A
JP2000308524A JP11121663A JP12166399A JP2000308524A JP 2000308524 A JP2000308524 A JP 2000308524A JP 11121663 A JP11121663 A JP 11121663A JP 12166399 A JP12166399 A JP 12166399A JP 2000308524 A JP2000308524 A JP 2000308524A
Authority
JP
Japan
Prior art keywords
rod
silicone rubber
projections
injection molding
siloxane polymer
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.)
Pending
Application number
JP11121663A
Other languages
Japanese (ja)
Inventor
Akira Suzuki
明 鈴木
Akitsugu Maeda
晃嗣 前田
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.)
Kao Corp
Original Assignee
Kao Corp
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 Kao Corp filed Critical Kao Corp
Priority to JP11121663A priority Critical patent/JP2000308524A/en
Publication of JP2000308524A publication Critical patent/JP2000308524A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2083/00Use of polymers having silicon, with or without sulfur, nitrogen, oxygen, or carbon only, in the main chain, as moulding material
    • B29K2083/005LSR, i.e. liquid silicone rubbers, or derivatives thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/42Brushes
    • B29L2031/425Toothbrush

Landscapes

  • Brushes (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a tooth brush having rod-like projections which are flashless, have excellent appearance and are hardly deteriorated and assure excellent safety. SOLUTION: This tooth brush has molded rod-like projections formed by a liquid type silicone rubber injection molding system of liquid type silicone rubber essentially consisting of oily linear siloxane polymer on a flocking base 10. In such a case, the rod-like projections are formed by the liquid type silicone rubber injection molding system and are the built into the flocking base 10.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は棒状突起を有する歯
ブラシ及びその製造方法に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a toothbrush having rod-like projections and a method for manufacturing the same.

【0002】[0002]

【従来の技術】歯ぐきへのマッサージ効果が得られる歯
ブラシとして、棒状突起を有する歯ブラシが既に市場に
供されている。而して、従来斯かる棒状突起は、一般に
重合度5,000〜10,000程度の線状シロキサン
ポリマーを主成分とするミラブル型シリコーンゴムを材
料にして、圧縮成形法により成形されているため、得ら
れた歯ブラシ用の棒状突起にはバリが生じ易く、自ずと
外観を損ね易いと共に、成形後に於てもシリコーンゴム
中に加硫剤が残り易い結果、劣化が生じ易い、と云う問
題があった。しかも、素練り工程を必要とする結果、異
物が混入し易く安全性の点で難があり、またそもそも硬
化に時間がかかる(通常10〜20分間)ため、生産性
が低いことも大きな問題となっていた。
2. Description of the Related Art Toothbrushes having rod-shaped projections are already available on the market as toothbrushes that can provide a massage effect on gums. Conventionally, such rod-shaped projections are generally formed by a compression molding method using a millable silicone rubber containing a linear siloxane polymer having a degree of polymerization of about 5,000 to 10,000 as a main component. However, there is a problem that burrs are easily generated on the obtained rod-shaped projections for the toothbrush, the appearance is easily spoiled, and the vulcanizing agent is easily left in the silicone rubber even after the molding, resulting in deterioration. Was. In addition, as a result of the necessity of the mastication step, foreign matter is easily mixed therein, which is difficult in terms of safety. In addition, it takes a long time to cure (usually 10 to 20 minutes), so that low productivity is also a major problem. Had become.

【0003】[0003]

【発明が解決しようとする課題】本発明は上記の如き従
来の問題を解消し、バリがなく外観に優れ、しかも劣化
しにくく安全性に優れた棒状突起を有する歯ブラシの提
供及び当該歯ブラシを効率良く製造することができる方
法の提供を目的とする。
SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems, and provides a toothbrush having bar-like projections which are excellent in appearance without burrs, are hardly deteriorated, and are excellent in safety, and the efficiency of the toothbrush is improved. It is intended to provide a method that can be manufactured well.

【0004】[0004]

【課題を解決するための手段】本発明は、オイル状の線
状シロキサンポリマーを主成分とする液状型シリコーン
ゴムの液状シリコーンゴム射出成形システムによる成形
棒状突起を植毛台に有する歯ブラシにより上記目的を達
成したものである。
According to the present invention, there is provided a toothbrush having a rod-shaped projection formed on a flocking table by a liquid silicone rubber injection molding system of a liquid silicone rubber containing an oily linear siloxane polymer as a main component. It has been achieved.

【0005】また、本発明は、オイル状の線状シロキサ
ンポリマーを主成分とする液状型シリコーンゴムを材料
として用い、液状シリコーンゴム射出成形システムによ
り棒状突起を成形し、次いでこれを植毛台に組み込むこ
とを特徴とする歯ブラシの製造方法により上記目的を達
成したものである。
Further, the present invention uses a liquid type silicone rubber mainly composed of an oily linear siloxane polymer as a material, forms a rod-shaped projection by a liquid silicone rubber injection molding system, and then incorporates the rod-shaped projection into a flocking table. The object has been achieved by a method for manufacturing a toothbrush characterized by the above-mentioned.

【0006】ここに、液状シリコーンゴム射出成形シス
テム(Liquid Injection Molding System)とは、液状
型シリコーンゴムを、例えば定量射出ポンプユニットと
ダイナミックミキサー又はスタティックミキサー等の混
合装置を備えた射出ユニットとからなる成形機に自動的
に注入した上、混合から成形までの全てを自動的に行な
う成形加工システムを云い、一般にLIMSと称されて
いるものである。
Here, the liquid silicone rubber injection molding system (Liquid Injection Molding System) comprises a liquid type silicone rubber, for example, an injection unit provided with a metering injection pump unit and a mixing device such as a dynamic mixer or a static mixer. A molding processing system that automatically injects everything from mixing to molding after being automatically injected into a molding machine, and is generally called LIMS.

【0007】また、本発明に用いる線状シロキサンポリ
マーとしては、重合度が100〜2,000程度のもの
が、本発明の目的を達成する上で特に有利である。
As the linear siloxane polymer used in the present invention, those having a degree of polymerization of about 100 to 2,000 are particularly advantageous for achieving the object of the present invention.

【0008】[0008]

【発明の実施の形態】以下本発明の実施の形態を図1〜
3に基いて説明する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to FIGS.
3 will be described.

【0009】10は柄部11の先部に達成された植毛台
で、該植毛面10aの対向する長手辺縁部10bに歯ぐ
きマッサージ用の棒状突起20が適宜数植設されてい
る。
Numeral 10 designates a flocking table which is formed at the tip of the handle portion 11, and has bar-shaped projections 20 for gumming, which are appropriately planted on opposing longitudinal edges 10b of the flocking surface 10a.

【0010】この棒状突起20は、図3(1)に示す如
く、植毛台10の植毛面側と背面側の双方で連結したも
のや、図3(2)に示す如く、1本ずつ独立して植毛台
10に組み込んだものであっても良いが、図2に示す如
く、植毛台10の背面10c側に於てのみ、各基部20
aを連結部材21を介して相互に連結せしめたものが、
棒状突起20の抜け落ちを防止し得ると共に、棒状突起
20間に、植毛台10の植毛面10aが露出し、当該棒
状突起20間にも刷毛束を植毛し得るのでより好まし
い。
As shown in FIG. 3A, the rod-shaped projections 20 are connected on both the flocking surface side and the back side of the flocking table 10, or as shown in FIG. The base 20 may be integrated into the flocking table 10 as shown in FIG. 2, but only on the back surface 10c side of the flocking table 10 as shown in FIG.
a are connected to each other via a connecting member 21.
It is more preferable because it is possible to prevent the rod-shaped projections 20 from falling off, and also to expose the flocked surface 10a of the flocking table 10 between the rod-shaped projections 20 so that the brush bundle can be transplanted between the rod-shaped projections 20.

【0011】この棒状突起20は、重合度100〜2,
000程度の線状シロキサンポリマー(オイル状)を主
成分とする液状型シリコーンゴムを材料として用い、液
状シリコーンゴム射出成形システムにより成形されてお
り、その具体的形状はその如何を問わない。因に、図2
の例に於ては連結部材21も同材料かつ同システムにて
一体成形されている。
The rod-like projections 20 have a degree of polymerization of 100 to 2,
It is formed by a liquid silicone rubber injection molding system using a liquid silicone rubber containing about 000 linear siloxane polymer (oil) as a main component, and its specific shape is not limited. By the way, FIG.
In the example, the connecting member 21 is also integrally formed of the same material and the same system.

【0012】30は、刷毛束で、棒状突起20間を含む
植毛面10aに適宜数植毛されているものである。尚、
刷毛束30の材質としては天然毛、あるいはナイロンや
ポリブチレンテレフタレート製等の人造毛等その如何を
問わない。
Numeral 30 denotes a brush bundle, which is appropriately planted on the flocked surface 10a including the space between the rod-shaped projections 20. still,
The material of the brush bundle 30 may be natural hair or artificial hair such as nylon or polybutylene terephthalate.

【0013】而して、斯かる歯ブラシは、重合度100
〜2,000程度の線状シロキサンポリマー(オイル
状)を主成分とする液状型シリコーンゴムを材料として
用い、液状シリコーンゴム射出成形システムにより、棒
状突起20(図2に例に於ては連結部材21を含む)を
成形し、次いで0.5〜5分間放置して硬化せしめた
後、これを植毛台10に、該植毛台面10a上方に突出
するように組み込むことにより、極めて効率的に製造さ
れる。因に、当該棒状突起20の植毛台10への組み込
みは、刷毛束30の植毛台10への植毛の前後の如何を
問わない。
The toothbrush has a degree of polymerization of 100.
Approximately 2,000 linear siloxane polymer (oil-like) is used as a material, and a liquid silicone rubber is used as a material. The liquid silicone rubber injection molding system is used to form a rod-shaped projection 20 (in FIG. 2, the connecting member in the example). 21) and then allowed to cure for 0.5 to 5 minutes, and then incorporated into the flocking table 10 so as to protrude above the flocking table surface 10a to produce a very efficient production. You. The rod-shaped projections 20 may be incorporated into the flocking table 10 regardless of whether the brush bundle 30 is implanted into the flocking table 10.

【0014】[0014]

【発明の効果】本発明歯ブラシは、棒状突起が液状シリ
コーンゴム射出成形システムにより、圧縮成形法に比し
低射出圧で成形されているため、バリがなく外観に優
れ、しかも加硫剤を必要としないため、該加硫剤や反応
副生物による劣化の恐れがない。また、素練り工程を必
要としないため、異物の混入の恐れがなく、より安全性
に優れる。
According to the toothbrush of the present invention, since the rod-shaped projections are formed by the liquid silicone rubber injection molding system at a lower injection pressure than the compression molding method, the appearance is excellent without burrs and a vulcanizing agent is required. Therefore, there is no risk of deterioration due to the vulcanizing agent or reaction by-product. In addition, since a mastication step is not required, there is no possibility that foreign matter is mixed, and the safety is further improved.

【0015】更に、本発明方法によれば、硬化に要する
時間も圧縮成形法に比し短いため、自ずと生産性が高
く、上記の如き本発明歯ブラシを極めて効率的に製造す
ることができる。
Further, according to the method of the present invention, since the time required for curing is shorter than that of the compression molding method, the productivity is naturally high, and the toothbrush of the present invention as described above can be produced extremely efficiently.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明歯ブラシの植毛台部の平面模式説明図。FIG. 1 is a schematic plan view illustrating a flocking base of a toothbrush according to the present invention.

【図2】本発明歯ブラシの植毛台部の要部断面説明図。FIG. 2 is an explanatory cross-sectional view of a main part of a flocking base of the toothbrush of the present invention.

【図3】(1)及び(2)はそれぞれ本発明歯ブラシの
他の実施態様例を示す要部断面説明図。
FIGS. 3 (1) and (2) are cross-sectional views of main parts showing another embodiment of the toothbrush of the present invention.

【符号の説明】[Explanation of symbols]

10:植毛台 10a:植毛面 10b:長手辺縁部 10c:背面 11:柄部 20:ゴム様棒状刷子 20a:基部 20b:刷子部 21:連結部材 30:刷毛束 10: flocking table 10a: flocking surface 10b: longitudinal edge 10c: back surface 11: handle portion 20: rubber-like bar-shaped brush 20a: base 20b: brush portion 21: connecting member 30: brush bundle

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】 オイル状の線状シロキサンポリマーを主
成分とする液状型シリコーンゴムの液状シリコーンゴム
射出成形システムによる成形棒状突起を植毛台に有する
歯ブラシ。
1. A toothbrush having a rod-shaped projection formed on a flocking table by a liquid silicone rubber injection molding system of a liquid silicone rubber containing an oily linear siloxane polymer as a main component.
【請求項2】 線状シロキサンポリマーの重合度が10
0〜2,000である請求項1記載の歯ブラシ。
2. The linear siloxane polymer having a degree of polymerization of 10
The toothbrush according to claim 1, wherein the number is from 0 to 2,000.
【請求項3】 オイル状の線状シロキサンポリマーを主
成分とする液状型シリコーンゴムを材料として用い、液
状シリコーンゴム射出成形システムにより棒状突起を成
形し、次いでこれを植毛台に組み込むことを特徴とする
請求項1記載の歯ブラシの製造方法。
3. A rod-shaped projection is formed by a liquid silicone rubber injection molding system using a liquid type silicone rubber containing an oily linear siloxane polymer as a main component, and the rod-like projection is then incorporated into a flocking table. The method for manufacturing a toothbrush according to claim 1.
【請求項4】 線状シロキサンポリマーの重合度が10
0〜2,000である請求項3記載の歯ブラシの製造方
法。
4. The linear siloxane polymer having a degree of polymerization of 10
The method for producing a toothbrush according to claim 3, wherein the number is from 0 to 2,000.
JP11121663A 1999-04-28 1999-04-28 Tooth brush having rod-like projections and its production Pending JP2000308524A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11121663A JP2000308524A (en) 1999-04-28 1999-04-28 Tooth brush having rod-like projections and its production

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11121663A JP2000308524A (en) 1999-04-28 1999-04-28 Tooth brush having rod-like projections and its production

Publications (1)

Publication Number Publication Date
JP2000308524A true JP2000308524A (en) 2000-11-07

Family

ID=14816828

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11121663A Pending JP2000308524A (en) 1999-04-28 1999-04-28 Tooth brush having rod-like projections and its production

Country Status (1)

Country Link
JP (1) JP2000308524A (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006105349A1 (en) * 2005-03-29 2006-10-05 Eegee, Llc Powered toothbrush with polishing elements
WO2008063029A1 (en) * 2006-11-24 2008-05-29 Byong Duk Choi Toothbrush forming method and toothbrush produced through the same
KR100843905B1 (en) * 2005-06-30 2008-07-03 주식회사 엘지생활건강 A gum massaging tooth brush
JP2009219902A (en) * 2003-09-19 2009-10-01 Gillette Co Electromotive toothbrush
US7707676B2 (en) 1999-06-14 2010-05-04 The Procter & Gamble Company Toothbrush
US7934284B2 (en) 2003-02-11 2011-05-03 Braun Gmbh Toothbrushes
US7975344B2 (en) 2003-03-14 2011-07-12 The Gillette Company Toothbrush head
US8156600B2 (en) 1995-11-09 2012-04-17 The Gillette Company Gum massaging oral brush
US8332982B2 (en) 2004-04-23 2012-12-18 The Gillette Company Vibrating toothbrush
USRE44819E1 (en) 2000-03-16 2014-04-01 Procter & Gamble Business Services Canada Company Toothbrush
WO2014162957A1 (en) * 2013-04-01 2014-10-09 ライオン株式会社 Toothbrush
US8955186B2 (en) 2003-04-23 2015-02-17 The Procter & Gamble Company Electric toothbrushes
US10136723B2 (en) 2015-12-14 2018-11-27 Colgate-Palmolive Company Oral care implement
US10213011B2 (en) 2015-12-14 2019-02-26 Colgate-Palmolive Company Oral care implement

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8156600B2 (en) 1995-11-09 2012-04-17 The Gillette Company Gum massaging oral brush
US8060970B2 (en) 1999-06-14 2011-11-22 The Procter & Gamble Company Toothbrush
US8332985B2 (en) 1999-06-14 2012-12-18 The Procter & Gamble Company Toothbrush
US7707676B2 (en) 1999-06-14 2010-05-04 The Procter & Gamble Company Toothbrush
USRE44819E1 (en) 2000-03-16 2014-04-01 Procter & Gamble Business Services Canada Company Toothbrush
US7934284B2 (en) 2003-02-11 2011-05-03 Braun Gmbh Toothbrushes
US8695149B2 (en) 2003-02-11 2014-04-15 Braun Gmbh Toothbrushes
US7975344B2 (en) 2003-03-14 2011-07-12 The Gillette Company Toothbrush head
US8528148B2 (en) 2003-03-14 2013-09-10 The Gillette Company Toothbrush head
US9220335B2 (en) 2003-03-14 2015-12-29 The Gillette Company Toothbrush head
US8955186B2 (en) 2003-04-23 2015-02-17 The Procter & Gamble Company Electric toothbrushes
JP2009219902A (en) * 2003-09-19 2009-10-01 Gillette Co Electromotive toothbrush
US7941886B2 (en) 2003-09-19 2011-05-17 Braun Gmbh Toothbrushes
US8332982B2 (en) 2004-04-23 2012-12-18 The Gillette Company Vibrating toothbrush
WO2006105349A1 (en) * 2005-03-29 2006-10-05 Eegee, Llc Powered toothbrush with polishing elements
KR100843905B1 (en) * 2005-06-30 2008-07-03 주식회사 엘지생활건강 A gum massaging tooth brush
WO2008063029A1 (en) * 2006-11-24 2008-05-29 Byong Duk Choi Toothbrush forming method and toothbrush produced through the same
WO2014162957A1 (en) * 2013-04-01 2014-10-09 ライオン株式会社 Toothbrush
JPWO2014162957A1 (en) * 2013-04-01 2017-02-16 ライオン株式会社 toothbrush
JP2018110989A (en) * 2013-04-01 2018-07-19 ライオン株式会社 toothbrush
US10136723B2 (en) 2015-12-14 2018-11-27 Colgate-Palmolive Company Oral care implement
US10213011B2 (en) 2015-12-14 2019-02-26 Colgate-Palmolive Company Oral care implement
US10849417B2 (en) 2015-12-14 2020-12-01 Colgate-Palmolive Company Oral care implement

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