JPH041602B2 - - Google Patents
Info
- Publication number
- JPH041602B2 JPH041602B2 JP59070939A JP7093984A JPH041602B2 JP H041602 B2 JPH041602 B2 JP H041602B2 JP 59070939 A JP59070939 A JP 59070939A JP 7093984 A JP7093984 A JP 7093984A JP H041602 B2 JPH041602 B2 JP H041602B2
- Authority
- JP
- Japan
- Prior art keywords
- handle
- terephthalate resin
- glass fiber
- glass fibers
- resin
- 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.)
- Expired - Lifetime
Links
- 239000003365 glass fiber Substances 0.000 claims description 41
- 229920005989 resin Polymers 0.000 claims description 37
- 239000011347 resin Substances 0.000 claims description 37
- -1 polyethylene terephthalate Polymers 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 19
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 19
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 15
- 238000000465 moulding Methods 0.000 claims description 15
- 229920001707 polybutylene terephthalate Polymers 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 239000000835 fiber Substances 0.000 claims 3
- 239000011152 fibreglass Substances 0.000 claims 3
- 238000002156 mixing Methods 0.000 description 7
- 201000004384 Alopecia Diseases 0.000 description 5
- 238000009835 boiling Methods 0.000 description 5
- 208000024963 hair loss Diseases 0.000 description 5
- 230000003676 hair loss Effects 0.000 description 5
- 238000001746 injection moulding Methods 0.000 description 5
- 239000008188 pellet Substances 0.000 description 5
- 238000002054 transplantation Methods 0.000 description 5
- 239000000523 sample Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 2
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 2
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 230000001680 brushing effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 229920006026 co-polymeric resin Polymers 0.000 description 1
- 239000013068 control sample Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- BXKDSDJJOVIHMX-UHFFFAOYSA-N edrophonium chloride Chemical compound [Cl-].CC[N+](C)(C)C1=CC=CC(O)=C1 BXKDSDJJOVIHMX-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229940034610 toothpaste Drugs 0.000 description 1
- 239000000606 toothpaste Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/42—Brushes
- B29L2031/425—Toothbrush
Landscapes
- Brushes (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、合成樹脂材料に短繊維状のガラス繊
維を配合して、優れた物性と特殊な外観を有する
刷子ハンドルを製造する方法に関するものであ
る。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a method for manufacturing a brush handle having excellent physical properties and a special appearance by blending short glass fibers with a synthetic resin material. It is.
従来、刷子類としては歯刷子、ヘアーブラシ、
洗浄用刷子など一般家庭用あるいは工業用のもの
があるが、これらはその使用上、濡れた手でも滑
らずに握れて、かつ美感に優れていること、刷毛
が常温で抜けにくいばかりでなく熱湯中に浸漬し
ても抜けずに使用に耐えること、刷子ハンドルの
植毛部あるいは把持部に亀裂が入りにくいことな
どが要求される。
Traditionally, brushes include toothbrushes, hairbrushes,
There are brushes for general household use and industrial use, such as cleaning brushes, but these brushes must be able to be held without slipping even with wet hands, have an excellent aesthetic appearance, and not only do they not come off easily at room temperature, but can also be used in boiling water. It is required to withstand use without falling out even when immersed in the brush, and to be resistant to cracks in the flocked part or the grip part of the brush handle.
しかしながら、従来の刷子ではこれらの要求を
充分満足するものは少ない。例えば刷子類のうち
歯刷子は毎日使用され、植毛強度と外観に優れて
いることが特に要求されるものであるが、一般に
使用されているAS（アクリロニトリル・スチレン
共重合体）樹脂、あるいはABS（アクリロニトリ
ル・ブタジエン・スチレン共重合体）樹脂では使
用中に亀裂や脱毛が発生し易く、とりわけ熱湯
（80゜〜100℃）で消毒殺菌した場合には、これら
が目立つて多い。また、外観を美しくしたり、濡
れた手で歯を磨くときに歯刷子が滑らないように
するために特殊な形の金型が採用されているが、
専用の成形金型を用意したりする必要があるため
に普通のハンドル成形の場合との互換性がなく、
簡便・安価に製造するのが困難であるなど問題点
の多いものであつた。
However, few conventional brushes fully satisfy these requirements. For example, among brushes, toothbrushes are used every day and are particularly required to have excellent flocking strength and appearance. Acrylonitrile-butadiene-styrene copolymer (acrylonitrile-butadiene-styrene copolymer) resin is prone to cracking and hair loss during use, and these are especially noticeable when disinfected and sterilized with boiling water (80° to 100°C). In addition, a specially shaped mold is used to make the appearance more beautiful and to prevent the toothbrush from slipping when brushing your teeth with wet hands.
Since it is necessary to prepare a special molding mold, it is not compatible with ordinary handle molding,
It had many problems, such as being difficult to manufacture easily and inexpensively.
本発明は、従来のものの上記問題点を排除し、
植毛強度及び美感の両面に優れた刷子ハンドルの
製造方法を提供することを目的とするものであ
る。 The present invention eliminates the above-mentioned problems of the conventional ones,
The object of the present invention is to provide a method for manufacturing a brush handle that is excellent in both flocking strength and aesthetic appearance.
本発明は、ポリエチレンテレフタレート樹脂、
ポリブチレンテレフタレート樹脂の少なくとも一
方と短繊維状のガラス繊維との混合材料によりハ
ンドルを成形したのち、該成形後のハンドルを熱
湯、スチーム又は加熱空気と接触させて該ハンド
ルの表面に梨地模様を発現せしめることを特徴と
する刷子ハンドルの製造方法である。
The present invention provides polyethylene terephthalate resin,
After a handle is molded from a mixed material of at least one of polybutylene terephthalate resin and short glass fibers, the molded handle is brought into contact with hot water, steam, or heated air to develop a satin pattern on the surface of the handle. This is a method for manufacturing a brush handle, characterized in that:
本発明によりハンドルを成形する場合には、例
えば(1)ガラス繊維を配合したポリエチレンテレフ
タレート樹脂のペレツトとガラス繊維を配合して
いない通常のポリエチレンテレフタレート樹脂の
ペレツトとをブレンドして成形する方法、(2)ガラ
ス繊維と前記通常の樹脂ペレツトとをブレンドし
て成形する方法、又は(3)ガラス繊維を配合した前
記樹脂ペレツト単独で成形する方法が採用できる
が、上記(1)の方法が好ましく、刷子ハンドル中の
ガラス繊維配合量を簡便に調整できる利点があ
る。但し上記(1)，(3)の方法でガラス繊維配合量を
大とした場合や(2)の方法では成形機のスクリユー
等にガラス繊維による摩耗が生じることがあるの
で注意が必要である。 When molding a handle according to the present invention, for example, (1) a method in which pellets of polyethylene terephthalate resin blended with glass fibers and pellets of ordinary polyethylene terephthalate resin blended with no glass fibers are blended and molded; 2) A method in which glass fibers are blended with the above-mentioned ordinary resin pellets and molded, or (3) a method in which the above-mentioned resin pellets blended with glass fibers are molded alone can be adopted, but the method (1) above is preferred; This has the advantage that the amount of glass fiber blended in the brush handle can be easily adjusted. However, care must be taken when using methods (1) and (3) above to increase the amount of glass fiber blended, or when using method (2), the screws of the molding machine may be abraded by the glass fibers.
また、前記ガラス繊維としては通常、長さ0.2
〜1.0mm、直径５〜30μmのものが使用される。そ
の理由は、長さ及び直径を上記範囲内とすること
によつて、梨地模様の発現が十分で、植毛時のク
ラツク発生や歯刷子ハンドルでは歯磨剤の接触に
よるクラツク発生が殆どなくなるうえ、熱湯処理
時の刷毛の脱毛が起こりにくくなり（耐熱性良
好）、成形機のスクリユーや金型に殆ど摩耗が生
じなくなるのに対し、長さが1.0mmを超えたり直
径が30μmを超えると植毛時等のクラツクや成形
機の摩耗が発生し易くなり、また長さが0.2mm未
満となつたり直径が5μm未満になると梨地模様の
発現が低下し、耐熱性向上効果も不十分となるか
らである。 In addition, the glass fiber usually has a length of 0.2
~1.0 mm and a diameter of 5 to 30 μm are used. The reason for this is that by setting the length and diameter within the above range, the satin pattern is sufficiently expressed, and there is almost no cracking during flocking or cracks on the toothbrush handle due to contact with toothpaste, and it is also possible to Hair loss of the brush during processing is less likely to occur (good heat resistance), and there is almost no wear on the screw of the molding machine or the mold, but if the length exceeds 1.0 mm or the diameter exceeds 30 μm, hair transplantation etc. Cracks and wear of the molding machine are likely to occur, and if the length is less than 0.2 mm or the diameter is less than 5 μm, the appearance of the satin pattern will decrease and the effect of improving heat resistance will be insufficient.
いずれにしても、本発明では樹脂とガラス繊維
が混合した状態のハンドル成形物が得られればよ
い。 In any case, in the present invention, it is sufficient to obtain a handle molded product in which resin and glass fiber are mixed.
本発明では、ポリエチレンテレフタレート樹脂
とガラス繊維からなる混合材料で刷子ハンドルを
成形する場合には、ガラス繊維の配合量を１〜30
％とすることによつて著しく向上した植毛強度及
び耐クラツク性と独特の落着いた外観を有し、し
かも濡れた手で握つても滑りにくい長所を持つ歯
刷子を得ることができる。 In the present invention, when molding a brush handle from a mixed material consisting of polyethylene terephthalate resin and glass fiber, the blending amount of glass fiber is 1 to 30%.
%, it is possible to obtain a toothbrush that has significantly improved flocking strength and crack resistance, has a unique calm appearance, and has the advantage of not slipping easily even when gripped with wet hands.
またポリブチレンテレフタレート樹脂とガラス
繊維とからなる混合材料で成形する場合は、ガラ
ス繊維の配合量を0.5〜2.0％とすることにより、
同様に植毛強度、外観等に優れた歯刷子を得るこ
とができる。 In addition, when molding with a mixed material consisting of polybutylene terephthalate resin and glass fiber, by setting the blending amount of glass fiber to 0.5 to 2.0%,
Similarly, a toothbrush with excellent flocking strength, appearance, etc. can be obtained.
さらに、ポリエチレンテレフタレート樹脂とポ
リブチレンテレフタレート樹脂とガラス繊維とか
らなる混合材料を使用することによつても、上記
と同程度に優れた特性を有する歯刷子となるもの
である。 Furthermore, even by using a mixed material consisting of polyethylene terephthalate resin, polybutylene terephthalate resin, and glass fiber, a toothbrush having properties as excellent as those described above can be obtained.
前記ガラス繊維の配合量は刷子ハンドル全体に
わたつて均等とするのが最も簡単であるが、植毛
部もしくは把持部など部分的に配合するのも効果
的である。またハンドルの芯部あるいは外面側に
のみ配合するのもよい。いずれにしても、配合の
目的・効果と成形方法の簡便さとを考慮して決定
することが肝要である。 It is easiest to blend the glass fibers in an even amount over the entire brush handle, but it is also effective to blend them locally, such as in the flocked part or the grip part. It is also good to mix it only in the core or outer surface of the handle. In any case, it is important to make a decision taking into account the purpose and effect of the blend and the simplicity of the molding method.
本発明では前記混合材料の成形方法として、ハ
ンドルの外形に応じて従来公知の射出成形、押出
成形等を採用することができ、歯刷子ハンドルを
製造する場合には一般に射出成形機が使用され
る。そして、成形後のハンドルの一部分又は全体
を熱湯中に浸漬したり恒温槽中で加熱空気と接触
させたりスチームと接触（加熱）させることで梨
地模様を部分的に又は全面的に発現させるもので
ある。 In the present invention, as a method for molding the mixed material, conventionally known injection molding, extrusion molding, etc. can be adopted depending on the outer shape of the handle, and when manufacturing a toothbrush handle, an injection molding machine is generally used. . After the molding, a part or the entire handle is immersed in hot water, brought into contact with heated air in a constant temperature bath, or brought into contact (heated) with steam to partially or completely develop the satin pattern. be.
なお、前記成形工程においては、金型の冷却温
度を調節することによりハンドルの一部を透明状
又は半透明状にしたり、逆に一部を結晶化させて
乳白色化することができる。 In the molding process, by adjusting the cooling temperature of the mold, a part of the handle can be made transparent or translucent, or conversely, a part can be crystallized to make it milky white.
以下、本発明を実施例に基づいて具体的に説明
する。
Hereinafter, the present invention will be specifically explained based on Examples.
実施例 １
ガラス繊維を配合したりポリエチレンテレフタ
レート（PET）樹脂と、これを配合していない
PET樹脂を混合した材料を射出成形し、歯刷子
ハンドルを試作した。ガラス繊維配合樹脂として
は帝人(株)製、タイプC3030ペレツト（ガラス繊維
配合量は30％、ガラス繊維の長さ×直径は0.6mm
×13μm）を、100％PET樹脂としては同社製タ
イプTR8550をそれぞれ採用し、これらを乾燥及
び混合し、従来一般に使用されている射出成形機
により通常の条件で成形した。Example 1 Contains glass fiber or polyethylene terephthalate (PET) resin, and does not contain this
We made a prototype toothbrush handle by injection molding a material mixed with PET resin. The glass fiber blended resin is manufactured by Teijin Ltd., type C3030 pellets (glass fiber content is 30%, glass fiber length x diameter is 0.6 mm).
x 13 μm) and 100% PET resin made by the company, type TR8550, were dried, mixed, and molded under normal conditions using a commonly used injection molding machine.
ガラス繊維配合PET樹脂と100％PET樹脂との
混合比率は、混合後の材料中のガラス繊維含有量
が１％、２％、４％、６％、10％、15％、20％及
び30％（これはガラス繊維配合樹脂100％に該当
する）となるように設定し、別に対照サンプルと
して100％PET樹脂によるハンドルも作製した。
ハンドル試料数は各水準とも100本とした。なお、
植毛ヘツドの植毛穴径、穴数はそれぞれ1.6mm、
30（３列×10個）とした。 The mixing ratio of glass fiber blended PET resin and 100% PET resin is that the glass fiber content in the material after mixing is 1%, 2%, 4%, 6%, 10%, 15%, 20% and 30%. (This corresponds to 100% glass fiber blended resin), and a handle made of 100% PET resin was also produced as a control sample.
The number of handle samples was 100 for each level. In addition,
The diameter and number of holes in the flocking head are 1.6mm each.
30 (3 rows x 10 pieces).
かくて得られた各ハンドル試料にナイロン製刷
毛を長さ1.8mm又は2.0mmの平線を打ち込んで植毛
し、試料の半数（それぞれ25本）については予め
100℃の熱湯に３分間浸漬処理して植毛強度測定
用試料とした。なお、いずれの試料も植毛時にク
ラツク（亀裂）は全く発生することがなかつた。 Each handle sample thus obtained was implanted with a nylon brush by driving a flat wire of 1.8 mm or 2.0 mm in length, and half of the samples (25 each) were implanted with a nylon brush.
A sample for hair flocking strength measurement was prepared by immersing it in hot water at 100°C for 3 minutes. In addition, no cracks were generated in any of the samples during hair transplantation.
植毛強度の測定は、植毛ヘツドを固定台に固定
し、刷毛を挾持具でつかんで引き上げ脱毛が起こ
るときの強度をテンシロンUTM−11−20
（BALDWIN CO.，LTD製）で測定して行なつ
た。 To measure the strength of hair transplantation, fix the hair transplantation head on a fixed stand, hold the brush with a clamp, pull it up, and measure the strength when hair loss occurs using Tensilon UTM-11-20.
(manufactured by BALDWIN CO., LTD).
測定結果は第１図に示すとおりで、各データと
も試料数25本の平均値である。この図から、ガラ
ス繊維配合により植毛強度が従来品（熱湯処理な
しでおおよそ1.5Kg）に比べて著しく向上するこ
と、特に、熱湯処理した後においても1.5Kg以上
を保持していること、ガラス繊維の配合量ととも
に植毛強度は増大し、配合量30％まで徐々に増大
しつづけることが判る。なお、配合量が30％を越
えると成形機のスクリユーや金型がガラス繊維に
より摩耗しやすくなるので注意が必要である。 The measurement results are shown in Figure 1, and each data is the average value of 25 samples. This figure shows that the flocking strength is significantly improved by blending glass fiber compared to the conventional product (approximately 1.5 kg without hot water treatment), and in particular, that it maintains more than 1.5 kg even after hot water treatment, and that glass fiber It can be seen that the hair flocking strength increases with the amount of addition, and continues to increase gradually until the amount of addition is 30%. Note that if the blending amount exceeds 30%, the screw of the molding machine and the mold will be easily worn out by the glass fibers, so care must be taken.
しかして、前記100℃の熱湯に３分間浸漬処理
した試料ハンドルは、梨地模様の特異な外観を有
するもので、表面にこまかい凹凸が見られ極めて
重厚で渋みのある落着いた、アダルト向きのもの
であつたが、ガラス繊維配合量１％ですでに梨地
模様を呈し、その配合量増大に共に顕著になつて
いくのが確認された。 However, the sample handle that was immersed in hot water at 100℃ for 3 minutes had a unique satin-like appearance, with fine irregularities on the surface, and was extremely heavy and astringent, making it suitable for adults. It was confirmed that a satin pattern was already exhibited when the glass fiber content was 1%, and this became more noticeable as the content increased.
第２図にガラス繊維配合量６％のサンプル（但
し、未だ植毛していない）の外観を示す。図中１
は植毛ヘツド、２は首部、３は把持部、４は穴で
梨地模様を呈する部分は同時に乳白色となつてい
るが図では散点状に示してあり、それ以外の部分
すなわち植毛ヘツドの大部分では半透明状のもの
となつている。なお、散点を濃密に示した部分は
結晶化が特に進行して乳白色の度合が濃く現れて
いる部分である。 Figure 2 shows the appearance of a sample containing 6% glass fiber (but not yet implanted). 1 in the diagram
2 is the flocked head, 2 is the neck, 3 is the grip, and 4 is the hole.The part with the satin pattern is also milky white, but it is shown as scattered dots in the figure, and the other parts, that is, the majority of the flocked head. It is now semi-transparent. It should be noted that the areas where the dots are densely shown are areas where crystallization has particularly progressed and the degree of milky white appears to be high.
実施例 ２
ガラス繊維を配合したポリエチレンテレフタレ
ート（PBT）樹脂と、これを配合していない
PBT樹脂を混合した材料により、実施例１とほ
ぼ同一の条件で射出成形して歯刷子ハンドルを試
作した。ガラス繊維配合樹脂としては帝人(株)製、
タイプC7015（ガラス繊維配合量は５％、ガラス
繊維の長さ×直径は0.6mm×13μm）を、100％
PBT樹脂としては同社製、タイプC7000をそれぞ
れ採用した。Example 2 Polyethylene terephthalate (PBT) resin mixed with glass fiber and one without it
A toothbrush handle was prototyped by injection molding using a material mixed with PBT resin under substantially the same conditions as in Example 1. Glass fiber blended resins are manufactured by Teijin Ltd.
Type C7015 (glass fiber content is 5%, glass fiber length x diameter is 0.6 mm x 13 μm), 100%
As the PBT resin, type C7000 manufactured by the same company was used.
混合材料中のガラス繊維含有量は0.5％、１％、
２％、３％、４％及び５％に設定し、別に100％
PBT樹脂によるハンドルも作製した。ハンドル
試料数、植毛ヘツドの形状、平線の寸法等の植毛
条件、熱湯処理条件及び植毛強度測定方法などは
実施例１と同じである。 The glass fiber content in the mixed material is 0.5%, 1%,
Set to 2%, 3%, 4% and 5%, separately 100%
A handle was also made from PBT resin. The number of handle samples, the shape of the flocking head, the flocking conditions such as the dimensions of the flat wire, the boiling water treatment conditions, the method of measuring the flocking strength, etc. are the same as in Example 1.
植毛強度の測定結果は第３図のとおりである
が、この実施例の結果をまとめると以下のことが
判明した。(1)ガラス繊維配合量0.5％以上で植毛
強度がDET樹脂の場合と同等となり、熱湯処理
しても脱毛の起こる心配がないこと、(2)外観を梨
地模様とするには前記配合量を１％以上とするの
が好ましいこと、(3)前記配合量は３％を超えると
熱湯処理時の熱変形が現れるので、これを2.5％
以下にするのが望ましいこと、である。なお、い
ずれの試料も植毛時にクラツクは全く発生しなか
つた。 The measurement results of the flocking strength are shown in FIG. 3, and the results of this example were summarized as follows. (1) If the content of glass fiber is 0.5% or more, the flocking strength will be the same as that of DET resin, and there is no risk of hair loss even when treated with boiling water. (3) If the amount exceeds 3%, thermal deformation will occur during hot water treatment, so this should be set at 2.5%.
It is desirable to do the following. In addition, no cracks occurred at all during hair transplantation in any of the samples.
以上述べたように本発明方法によれば、従来の
ものに比べて植毛強度が大幅に向上し、熱湯中で
殺菌等の処理をしても脱毛を起こす心配がなくな
るうえ、特異な落着いた梨地模様の外観を有し、
濡れた手で握つても滑らない長所を持つ刷子ハン
ドルが得られるものであり、加えて、従来の成形
機により簡便に金型加工等を要することなく製造
できる利点があり、実用性が著しく向上すると共
に美感も向上し、したがつて使用者の要求と嗜好
に的確にこたえ得る優れた刷子ハンドルとなるも
のである。また、本発明は歯刷子以外の家庭用も
しくは工業用の刷子類に広く適用しうるものであ
る。
As described above, according to the method of the present invention, the strength of the hair transplanted hair is greatly improved compared to the conventional method, there is no need to worry about hair loss even after sterilization in boiling water, and the hair has a unique calm satin finish. has a patterned appearance;
This provides a brush handle that does not slip even when gripped with wet hands.In addition, it has the advantage of being easily manufactured using a conventional molding machine without the need for mold processing, which significantly improves practicality. At the same time, the aesthetic appearance is improved, and the brush handle becomes an excellent brush handle that can accurately meet the needs and preferences of the user. Further, the present invention can be widely applied to household or industrial brushes other than toothbrushes.
第１図及び第２図は本発明の第１実施例の結果
を示すもので、第１図はガラス繊維を配合した
PET樹脂による歯刷子ハンドル成形品の植毛強
度を示すグラフ、第２図はこの成形品の外観を示
す平面図、第３図は本発明の第２実施例の結果を
示すもので、ガラス繊維を配合したPBT樹脂に
よる歯刷子ハンドル成形品の植毛強度を示すグラ
フである。
１……植毛ヘツド、２……首部、３……把握
部、４……穴。
Figures 1 and 2 show the results of the first example of the present invention, and Figure 1 shows the results of the first example of the present invention.
A graph showing the flocking strength of a toothbrush handle molded product made of PET resin. Fig. 2 is a plan view showing the external appearance of this molded product. Fig. 3 shows the results of the second example of the present invention. It is a graph showing the flocking strength of a toothbrush handle molded product made of a blended PBT resin. 1... hair transplant head, 2... neck, 3... gripping part, 4... hole.
Claims (1)
レンテレフタレート樹脂の少なくとも一方と短繊
維状のガラス繊維との混合材料によりハンドルを
成形したのち、該成形後のハンドルを熱湯、スチ
ーム又は加熱空気と接触させて該ハンドルの表面
に梨地模様を発現せしめることを特徴とする刷子
ハンドルの製造方法。 ２ 前記ポリエチレンテレフタレート樹脂、ポリ
ブチレンテレフタレート樹脂の少なくとも一方と
短繊維状のガラス繊維との混合材料によりハンド
ルを成形する工程が、短繊維状のガラス繊維を含
有するポリエチレンテレフタレート樹脂、短繊維
状のガラス繊維を含有するポリブチレンテレフタ
レート樹脂の少なくとも一方と、ガラス繊維を含
有しないポリエチレンテレフタレート樹脂、ガラ
ス繊維を含有しないポリブチレンテレフタレート
樹脂の少なくとも一方とを混合した混合材料によ
りハンドルを成形するものである特許請求の範囲
第１項記載の刷子ハンドルの製造方法。 ３ ポリエチレンテレフタレート樹脂99〜70％
（重量、以下同じ）とガラス繊維１〜30％とから
なる混合材料によりハンドルを成形する特許請求
の範囲第１項又は第２項記載の刷子ハンドルの製
造方法。 ４ ポリブチレンテレフタレート樹脂99.5〜98.0
％とガラス繊維0.5〜2.0％とからなる混合材料に
よりハンドルを成形する特許請求の範囲第１項又
は第２項記載の刷子ハンドルの製造方法。 ５ 前記ガラス繊維として、長さ0.2〜1.0mm、直
径５〜30μmのものを使用する特許請求の範囲第
１〜４項のいずれか一つの項記載の刷子ハンドル
の製造方法。[Claims] 1. After a handle is molded from a mixed material of at least one of polyethylene terephthalate resin and polybutylene terephthalate resin and short glass fibers, the molded handle is brought into contact with hot water, steam, or heated air. A method for manufacturing a brush handle, characterized in that a satin pattern is produced on the surface of the handle. 2. The step of molding the handle from a mixed material of at least one of polyethylene terephthalate resin and polybutylene terephthalate resin and short fiber glass fibers includes polyethylene terephthalate resin containing short fiber glass fibers and short fiber glass. A patent claim in which the handle is molded from a mixed material of at least one of polybutylene terephthalate resin containing fibers, at least one of polyethylene terephthalate resins containing no glass fibers, and at least one of polybutylene terephthalate resins containing no glass fibers. A method for manufacturing a brush handle according to item 1. 3 Polyethylene terephthalate resin 99-70%
3. A method for manufacturing a brush handle according to claim 1 or 2, wherein the handle is formed from a mixed material consisting of (by weight, the same hereinafter) and 1 to 30% of glass fiber. 4 Polybutylene terephthalate resin 99.5-98.0
3. The method for manufacturing a brush handle according to claim 1 or 2, wherein the handle is formed from a mixed material consisting of 10% and 0.5 to 2.0% of glass fiber. 5. The method for manufacturing a brush handle according to any one of claims 1 to 4, wherein the glass fibers have a length of 0.2 to 1.0 mm and a diameter of 5 to 30 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7093984A JPS60215307A (en) | 1984-04-11 | 1984-04-11 | Brush handle and its production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7093984A JPS60215307A (en) | 1984-04-11 | 1984-04-11 | Brush handle and its production |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60215307A JPS60215307A (en) | 1985-10-28 |
| JPH041602B2 true JPH041602B2 (en) | 1992-01-13 |
Family
ID=13445970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7093984A Granted JPS60215307A (en) | 1984-04-11 | 1984-04-11 | Brush handle and its production |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60215307A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3531390B2 (en) * | 1996-12-20 | 2004-05-31 | 松下電工株式会社 | Manufacturing method of toothbrush |
| DE112013007686B3 (en) * | 2012-05-24 | 2019-08-22 | Sunstar Suisse S.A. | Interdental cleaning tool |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5937965A (en) * | 1982-08-24 | 1984-03-01 | 株式会社スワロ−スキ− | Ski |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5890128U (en) * | 1981-12-14 | 1983-06-18 | ライオン株式会社 | toothbrush |
-
1984
- 1984-04-11 JP JP7093984A patent/JPS60215307A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5937965A (en) * | 1982-08-24 | 1984-03-01 | 株式会社スワロ−スキ− | Ski |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60215307A (en) | 1985-10-28 |
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