JPS59133029A - Resin molding and manufacture thereof - Google Patents
Resin molding and manufacture thereofInfo
- Publication number
- JPS59133029A JPS59133029A JP776183A JP776183A JPS59133029A JP S59133029 A JPS59133029 A JP S59133029A JP 776183 A JP776183 A JP 776183A JP 776183 A JP776183 A JP 776183A JP S59133029 A JPS59133029 A JP S59133029A
- Authority
- JP
- Japan
- Prior art keywords
- color
- plastic
- molding
- color plastic
- molded body
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1635—Making multilayered or multicoloured articles using displaceable mould parts, e.g. retractable partition between adjacent mould cavities
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、たとえばボタン電話機の外側ケース等のよう
に色の異なる樹脂成形体を一体化した樹脂成形品および
その製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a resin molded article in which resin molded bodies of different colors are integrated, such as the outer case of a button telephone, and a method for manufacturing the same.
従来例の構成とその問題点
第１図は、従来の２色成形品からなるボタン電話機の外
側のケースを示す斜視図である。この外側のケースの形
状は直方体で、内側が中空になっており、Ａ色プラスチ
ック成形体］とＢ色プラスチック成形体２とが一体化さ
れている。Ａ色プラスチック成形体１は直方体の一部で
、全体が同一色（Ａ色）になっている。Ｂ色プラスチッ
ク成形体２は直方体の一部で、全体が同一色（Ｂ色）で
Ａ色プラスチック成形体ｌと異なった色となっている。Structure of a conventional example and its problems FIG. 1 is a perspective view showing the outer case of a conventional button telephone made of a two-color molded product. The shape of this outer case is a rectangular parallelepiped, and the inside is hollow, and the A-color plastic molded body and the B-color plastic molded body 2 are integrated. The A-color plastic molded body 1 is a part of a rectangular parallelepiped, and the entire body is the same color (A-color). The B-color plastic molded body 2 is a part of a rectangular parallelepiped, and the entire body has the same color (B color) and a different color from the A-color plastic molded body 1.
３は第２図〜第５図の断面図を説明するときの切断線で
ある。４はＡ色プラスチック成形体１とＢ色プラスチッ
ク成形体２の接合面である。3 is a cutting line when explaining the cross-sectional views of FIGS. 2 to 5. 4 is a joint surface between the A-color plastic molded body 1 and the B-color plastic molded body 2.
第２図は第１図の切断線３によって切断された断面図で
あり、この従来例のＡ色プラスチック成形体１とＢ色プ
ラスチック成形体２とは超音波溶着により接合されてい
る。１はＡ色プラスチノク成形体で、このＡ色プラスチ
ック成形体１は超音波溶着用にＬ字状突起５を内側に設
けである。２ばＢ色プラスチック成形体で、このＢ色プ
ラスチック成形体２ば、上記Ａ色プラスチック］のＬ字
状突起５にはめ込んだ後、超音波溶着とする。FIG. 2 is a sectional view taken along cutting line 3 in FIG. 1, and the A-color plastic molded body 1 and the B-color plastic molded body 2 of this conventional example are joined by ultrasonic welding. Reference numeral 1 denotes an A-color plastic molded body, and this A-color plastic molded body 1 is provided with an L-shaped protrusion 5 on the inside for ultrasonic welding. The B-color plastic molded product 2 is fitted into the L-shaped protrusion 5 of the A-color plastic described above, and then subjected to ultrasonic welding.
第３図は、第２図の超音波溶着に伴う接合面の変化を示
した図である。第３図において、４ａ１４１）は溶着後
Ａ色プラスチック成形体１とＢ色プラスチック成形体２
の接合面に付着するパリである。上記パリ４ ａ、４ｂ
は超音波溶着時に超音波振動により接触面を溶解して接
着したときに、溶解物が表面にはみ出したものである。FIG. 3 is a diagram showing changes in the joint surface due to the ultrasonic welding shown in FIG. 2. In Fig. 3, 4a141) indicates the A color plastic molded body 1 and the B color plastic molded body 2 after welding.
It is a particle that adheres to the joint surface of the metal. Paris 4a, 4b above
When the contact surfaces were melted and bonded by ultrasonic vibration during ultrasonic welding, the melt protruded onto the surface.
超音波溶着では、上記バ１Ｊ４ａ、４ｂが発生すれば溶
着が完全に行なえ、接着力が大きいことになるが、一方
表面にパリがあると製品として美観を損ねてしまうので
、表面のパリをなくし、接着力を犠牲にして美観を向上
させている。しかしながら一般に、超音波溶着は高エネ
ルギーの超音波を発生させなければならないため、コス
トがかかるという欠点があった。また、上記パリをなく
し、美観を向上させるために接着力を犠牲にしなければ
ならない欠点があった。In ultrasonic welding, if the above-mentioned burrs 1J4a and 4b occur, the welding can be completed completely and the adhesive strength will be strong, but on the other hand, if there are burrs on the surface, the beauty of the product will be spoiled, so it is necessary to eliminate the burrs on the surface. , the aesthetics are improved at the expense of adhesion. However, in general, ultrasonic welding requires the generation of high-energy ultrasonic waves, which has the disadvantage of being costly. Further, there is a drawback that adhesive strength must be sacrificed in order to eliminate the above-mentioned flakes and improve the aesthetic appearance.
第４図は、他の従来例の断面図でこの従来例はいわゆる
２色成形と呼ばれ、る方法で接合されたものである。２
色成形とは、１台の射出成形機に２本のプラスチン−り
射出シリンダーを付け、加熱可塑化されたプラスチック
をそれぞれ別のノズルからＡ色、Ｂ色と別の色のプラス
チックが射出しつるようにしたものである。したがって
２色のプラスチックを溶着剤なしに接合できる利点を有
している。FIG. 4 is a sectional view of another conventional example, and this conventional example is joined by a method called two-color molding. 2
Color molding is a process in which one injection molding machine is equipped with two plastic injection cylinders, and the heated plasticized plastics are injected from separate nozzles to produce different colored plastics such as color A and color B. This is how it was done. Therefore, it has the advantage of being able to join two colored plastics together without using a welding agent.
第５図は、第４図の従来の２色成形品を製造するときの
金型の図である。７ａ、７ｂは同質の金型である。まず
、Ａ色プラスチック１ｂを成形した後、６の方向から熱
塑性された８色プラスチックが圧入される。この際、Ａ
色プラスチックの接触面を上記熱り性された８色プラス
チックの熱で溶解はせて接合するものである。プラスチ
ック成形では、上記熱塑性されたプラスチックを金型に
圧入するので、接合面にかかる圧力が一様でなくなる。FIG. 5 is a diagram of a mold for producing the conventional two-color molded product shown in FIG. 7a and 7b are molds of the same quality. First, after molding the A-color plastic 1b, eight-color thermoplastic plastics are press-fitted from direction 6. At this time, A
The contact surfaces of the colored plastics are melted and bonded using the heat of the eight colored plastics. In plastic molding, the thermoplastic plastic is press-fitted into a mold, so the pressure applied to the joint surfaces is not uniform.
第６図は湯口がひとつのため上記圧力が一様で々くなる
場合を示した図である。第６図のように熱塑性された８
色プラスチックの圧入の強さが６３では強く、６ｂでは
弱い場合には、Ａ色プラスチック１ｂ接触面が熱型性さ
れているので、圧入の強さが強い６ａの力で、６ｂが押
しのけられて、第６図のように直線とはならず、曲線と
なる。したがって、第４図の２色成形による接合の方法
は、接合面を直線状にしたいにもかかわらず製造上の理
由から第６図のように曲線となる。FIG. 6 is a diagram showing the case where the pressure is uniform and increases because there is only one sprue. Thermoplastic 8 as shown in Figure 6
If the press-fit strength of color plastic is strong in 63 and weak in 6b, the contact surface of color A plastic 1b is thermoformed, so 6b is pushed away by the force of 6a, which has strong press-fit strength. , it is not a straight line as shown in FIG. 6, but a curved line. Therefore, in the method of joining by two-color molding shown in FIG. 4, although it is desired to make the joining surface straight, the joining surface becomes curved as shown in FIG. 6 due to manufacturing reasons.
まだ、２色成形では、接合面積が小さいので、折り曲げ
強度も弱いという欠点があり問題となっていた。However, two-color molding still has a problem in that the bonding area is small and the bending strength is also weak.
以上のように、２色接合を超音波溶着の方法で行なう場
合はコストが高く、美観を向上させようよす４福４性、
、低くヶお。７．、、、ｆ Ｗｅ ２色接、を゛ ２
色成形の方法で行なう場合は、接合面が直線状とならず
、かつ折シ曲げ強度が弱い。したがって２色接合を従来
の方法で行なうには問題があった。As mentioned above, when two-color bonding is performed using ultrasonic welding, the cost is high, and it is desirable to improve the aesthetic appearance.
, low and loud. 7. ,,,f We two-color tangent, ゛ 2
When the color molding method is used, the joint surfaces are not straight and the bending strength is weak. Therefore, there are problems in performing two-color bonding using the conventional method.
発明の目的
本発明は、上記従来の問題を除去するものであり、２色
成形における接合面の形状を変更することにより、接合
面の折シ曲げ強度と、直線性を良くすることを目的とす
るものである。Purpose of the Invention The present invention eliminates the above-mentioned conventional problems, and aims to improve the bending strength and linearity of the joint surface by changing the shape of the joint surface in two-color molding. It is something to do.
発明の構成
（以下余白）
本発明は、前記目的を達成するために、一方の樹脂成形
体の縁部に突条を設け、かつこの突条に２段階の段部を
形成し、この段部に射出成形により他の樹脂成形体を接
合するものである。Structure of the Invention (Hereinafter referred to as a blank space) In order to achieve the above object, the present invention provides a protrusion on the edge of one of the resin molded bodies, forms a two-stage step on the protrusion, and forms a step on the step. Another resin molded body is joined to the molded body by injection molding.
実施例の説明
以下に本発明の一実施例の構成について、図面とともに
説明する。第７図は本発明による２色成形品を示す斜視
図である。第７図は第１図と同一形状であシ、７はＡ色
プラスチック、８ば８色プラスチックである。９は第８
図、第９図を説明するときの切断線である。１０は、Ａ
色プラスチック７と８色プラスチック８の境界線にある
溝である。第８図は第７図の切断線９によって切断され
た断面図である。第９図は第８図のＡ色プラスチック７
と８色プラスチック８の接合部分１１を拡大した図であ
る。第９図において、Ａ色グラスチック７はその縁部に
肉厚の突条１２が形成されている。上記肉厚の突条１２
の表面側の端部に第１の段部（溝１０）と、この段部の
下方に第２の段部１４が形成されている。上記第１の段
部（溝１０）と第２の段部の境界に端面１５を有してい
る。Ａ色プラスチック７と８色プラスチック８の接合は
、第２の段部１４と端面］５の２ケ所で行なわれている
。１３は裏面における突条との境界部の溝であり、この
裏面の溝１３はＡ色プラスチック７と８色プラスチック
８を２色成形するときに８色プラスチック８の成形時の
圧力を溝１３にはめ込まれた金型１８によって吸収する
だめのものである。しだがって、２色成形の製造時には
上記肉厚の突条１２と裏面の溝１３により成形時の圧力
を吸収する。成形後には、裏面の突起１２と、裏面にお
ける突条との境界部の溝１３により折り曲げ強度を上げ
る。DESCRIPTION OF EMBODIMENTS The configuration of an embodiment of the present invention will be described below with reference to the drawings. FIG. 7 is a perspective view showing a two-color molded product according to the present invention. Fig. 7 has the same shape as Fig. 1, 7 is A color plastic, and 8 is 8 color plastic. 9 is the 8th
This is a cutting line used when explaining FIGS. 9 and 9. 10 is A
This groove is located at the boundary between the color plastic 7 and the eight color plastic 8. 8 is a sectional view taken along cutting line 9 in FIG. 7. FIG. Figure 9 shows the A color plastic 7 in Figure 8.
It is an enlarged view of the joint portion 11 of the eight-color plastic 8. In FIG. 9, the A-color plastic 7 has a thick protrusion 12 formed on its edge. The above-mentioned thick protrusion 12
A first step (groove 10) is formed at the end on the surface side of the groove, and a second step 14 is formed below this step. An end surface 15 is provided at the boundary between the first step (groove 10) and the second step. The A-color plastic 7 and the 8-color plastic 8 are joined at two places: the second step 14 and the end face 5. Reference numeral 13 indicates a groove at the boundary with the protrusion on the back surface, and this groove 13 on the back surface applies pressure during molding of the 8-color plastic 8 to the groove 13 when molding the A-color plastic 7 and the 8-color plastic 8. It is meant to be absorbed by the mold 18 into which it is fitted. Therefore, during two-color molding, pressure during molding is absorbed by the thick protrusions 12 and the grooves 13 on the back surface. After molding, the bending strength is increased by the projections 12 on the back surface and the grooves 13 at the boundary between the protrusions on the back surface.
次に本発明による２色成形品の製造方法について述べる
。第１０図は、金型によシ２色成形するときの製造方法
を示した図である。第１０図で、Ａ色プラスチック７を
成型するときには、スペース１９に密着するような金型
の一部を挿入しておいて、黙想性されたＡ色プラスチ、
り７を圧入する。その後、冷却してＡ色プラスチ、りが
固まったときに上記金型の一部１９を引き抜いて、熱塑
性された８色プラスチックを圧入する。８色プラスチッ
クは熱塑性されているので、Ａ色プラスチック７との接
触面、すなわち端部１５と第２の段面１４を熱軟化させ
て、Ａ色プラスチック７と８色プラスチック８とを接合
させる。Next, a method for manufacturing a two-color molded article according to the present invention will be described. FIG. 10 is a diagram showing a manufacturing method when two-color molding is performed using a mold. In FIG. 10, when molding the A-color plastic 7, a part of the mold that fits tightly into the space 19 is inserted, and the A-color plastic that has been molded is molded.
Press in 7. Thereafter, when the A-color plastic is cooled and hardened, a portion 19 of the mold is pulled out and thermoplastic eight-color plastic is press-fitted. Since the eight-color plastic is thermoplastic, the contact surface with the A-color plastic 7, that is, the end portion 15 and the second stepped surface 14, is thermally softened to join the A-color plastic 7 and the eight-color plastic 8.
第１１図は完成状態における接合部を示している。Ａ色
プラスチック７と８色プラスチック８の接合は第２の段
部１４と境界の端面１５の２面でおこなわれているため
、折シ曲げ強度に強い。まだ、裏面における突条との境
界部の溝１３を設けることによって８色プラスチック８
の成形時の圧力を、第１０図の金型１８により緩和する
とともに、成形後の折シ曲げ強度を上げることができる
。FIG. 11 shows the joint in the completed state. Since the A-color plastic 7 and the 8-color plastic 8 are bonded on two surfaces, the second step portion 14 and the boundary end surface 15, they are strong in bending strength. However, by providing a groove 13 at the boundary with the protrusion on the back side, the eight-color plastic 8
The pressure during molding can be relieved by the mold 18 shown in FIG. 10, and the bending strength after molding can be increased.
さらに表の溝１０により、Ａ色プラスチ、り７と８色プ
ラスチ、り８の接合面の直線性を向上させることができ
る。Furthermore, the grooves 10 on the front surface can improve the linearity of the joint surfaces of the A-color plasti 7 and the 8-color plasti 8.
このように本実施例によれば、接合面の直線性を向上さ
せることができる。以下、その理由について第１１図を
用いて詳細に説明する。第１１図は第７図の表面の溝１
０を中心に一部切断にて示す斜視図である。第１１図に
おいて、２０ば８色プラスチック８の上辺である。２１
は８色プラスチック８の側面である。２３はＡ色プラス
チック７の上辺である。２４は人間の視線である。２２
はＡ色プラスチック７と８色プラスチック８の境界線で
ある。人間の視線２４は、溝１０を垂直から見ることは
少なく、斜め方向から見ることが多い。したがって、Ａ
色プラスチック７と８色プラスチック８の境界線２２は
通常、Ａ色プラスチック７に隠れて人間の視線２４に触
れることは少ない。この場合、Ａ色プラスチック７の上
辺２３と８色プラスチック８の側面２１が境界となる。As described above, according to this embodiment, the linearity of the joint surface can be improved. The reason for this will be explained in detail below using FIG. 11. Figure 11 shows groove 1 on the surface of Figure 7.
FIG. 2 is a partially cutaway perspective view centered at 0; In FIG. 11, the number 20 is the upper side of the eight-color plastic 8. 21
is the side of the 8-color plastic 8. 23 is the upper side of the A-colored plastic 7. 24 is the human line of sight. 22
is the boundary line between the A-color plastic 7 and the 8-color plastic 8. The human line of sight 24 rarely looks at the groove 10 vertically, but often from an oblique direction. Therefore, A
The boundary line 22 between the colored plastic 7 and the 8-colored plastic 8 is usually hidden by the A-colored plastic 7 and rarely comes into contact with the human line of sight 24. In this case, the upper side 23 of the A-color plastic 7 and the side surface 21 of the 8-color plastic 8 form the boundary.
なお、第１１図では人間の視線２４がＡ−色ブラスチッ
ク７側にあるが、反対に８色グラスチック８側にあった
場合は、８色プラスチック８の上辺２０が境界となる。In FIG. 11, the human line of sight 24 is on the A-color plastic 7 side, but if it were on the 8-color plastic 8 side, the upper side 20 of the 8-color plastic 8 would be the boundary.
たとえ、−Ａ色プラスチック７と８色プラスチック８の
境界線２２が、前述のように２色成形のため、ゆがんで
もＡ色プラスチック７の上辺２３と、８色プラスチック
８の上辺２０が直線状になっているので、上記ゆがみが
目立たない０
発明の効果
本発明は上記のような構成であり、本発明によれば以下
に示す効果が得られるものである。Even if the boundary line 22 between the -A color plastic 7 and the 8 color plastic 8 is distorted due to two-color molding as described above, the upper side 23 of the A color plastic 7 and the upper side 20 of the 8 color plastic 8 will be straight. Therefore, the above-mentioned distortion is not noticeable.0 Effects of the Invention The present invention has the above-described structure, and according to the present invention, the following effects can be obtained.
（１）表面の溝を設けただめ、２色成形における接合面
の直線性が得られる。(1) By providing grooves on the surface, linearity of the joint surface in two-color molding can be obtained.
（２）両プラスチックが２面で接合されるため、２色成
形における折シ曲げ強度を上げることができる。(2) Since both plastics are joined on two sides, the bending strength in two-color molding can be increased.
第１図は従来の２色の電話機のケースの斜視図、第２図
は同ケースの断面図、第３図は第２図の要部拡大断面図
、第４図は従来のケースの断面図、第５図は第４図のケ
ースを製造する金型の要部断面図、第６図は従来のケー
スの接合面を示す図、第７図は本発明の一実施例におけ
る樹脂成形品の斜視図、第８図は同樹脂成形品の断面図
、第９図は第８図の要部拡大断面図、第１０図は本発明
の一実施例における製造方法に用いる金型の要部断面図
、第１１図は本発明の一実施例における樹脂成形品の要
部の断面斜視図である。
７・・・・・・Ａ色プラスチック、８・・・・・・３色
プラスチック、１ｏ・・・・−・表面の溝、１２・・・
・・・裏面の突条、１３・・・・・・溝。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名第１
図
第２図
第４図
第５図
第７図
第８図 第９図
第１０図
第１１図
−１６′Figure 1 is a perspective view of a conventional two-color telephone case, Figure 2 is a sectional view of the same case, Figure 3 is an enlarged sectional view of the main part of Figure 2, and Figure 4 is a sectional view of a conventional case. , FIG. 5 is a sectional view of the main part of the mold for manufacturing the case shown in FIG. 4, FIG. 6 is a view showing the joint surface of a conventional case, and FIG. A perspective view, FIG. 8 is a sectional view of the resin molded product, FIG. 9 is an enlarged sectional view of the main part of FIG. 8, and FIG. 10 is a sectional view of the main part of the mold used in the manufacturing method in one embodiment of the present invention. 11 are cross-sectional perspective views of essential parts of a resin molded product in an embodiment of the present invention. 7...A color plastic, 8...3 color plastic, 1o...---Surface groove, 12...
... protrusion on the back, 13... groove. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2 Figure 4 Figure 5 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11-16'
Claims (2)
と、との突条の表面側の端部に２段階に形成された第１
、第２の段部と、上記突条に形成された段部の内下方に
形成された第２の段部に縁部が接合された第２の樹脂成
形体とからなる樹脂成形品。(1) A thick protrusion formed on the edge of the first resin molded body, and a first protrusion formed in two stages on the end of the protrusion on the surface side.
. A resin molded product comprising a second step and a second resin molded body having an edge joined to the second step formed inside and below the step formed on the protrusion.
部に２段階に形成された第１、第２の段部を有し、かつ
裏面における突条との境界部に溝を有する第１の樹脂成
形体を成形する第１の工程と、」二記第１の樹脂成形体
の突条に形成された第１、第２の段部の白下側の第２の
段部に射出成形により第２の樹脂成形体を接合する第２
の工程とからなる樹脂成形品の製造方法。(2) Has a thick protrusion on the edge, has first and second steps formed in two stages on the end of the front side of the protrusion, and has a thick protrusion on the back side. a first step of molding a first resin molded body having a groove at the boundary; A second resin molded body is joined to the second step by injection molding.
A method for manufacturing a resin molded product, which comprises the steps of:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP776183A JPS59133029A (en) | 1983-01-19 | 1983-01-19 | Resin molding and manufacture thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP776183A JPS59133029A (en) | 1983-01-19 | 1983-01-19 | Resin molding and manufacture thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59133029A true JPS59133029A (en) | 1984-07-31 |
| JPS642047B2 JPS642047B2 (en) | 1989-01-13 |
Family
ID=11674666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP776183A Granted JPS59133029A (en) | 1983-01-19 | 1983-01-19 | Resin molding and manufacture thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59133029A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2572676A1 (en) * | 1984-11-02 | 1986-05-09 | Yoshida Industry Co | Process and apparatus for producing multicolour mouldings made of synthetic resin |
| JPS6246613A (en) * | 1985-08-24 | 1987-02-28 | Daiichi Kasei Kk | Multicolor molded part |
| FR2614574A1 (en) * | 1987-04-30 | 1988-11-04 | Sony Corp | DOUBLE INJECTION MOLDING DEVICE, IN PARTICULAR OF AN OPAQUE RESIN AND A TRANSPARENT RESIN |
| US5606781A (en) * | 1995-02-17 | 1997-03-04 | Velcro Industries, B.V. | Separable fastener having a bald perimeter rib bounded by fastening elements |
| JP2002240087A (en) * | 2001-02-16 | 2002-08-28 | Toyoda Gosei Co Ltd | In-mold coating molding method and in-mold coated molded item |
| JP2009173025A (en) * | 2007-12-25 | 2009-08-06 | Kakuichi Kasei Kk | Injection molding apparatus, injection-molded body and its manufacturing method |
| US20110101007A1 (en) * | 2008-05-16 | 2011-05-05 | Sca Hygiene Products Ab | Method of making a dispenser or a part thereof and a dispenser or part made by said method |
| US10987839B2 (en) | 2008-05-16 | 2021-04-27 | Essity Hygiene And Health Aktiebolag | Dispenser part |
-
1983
- 1983-01-19 JP JP776183A patent/JPS59133029A/en active Granted
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2572676A1 (en) * | 1984-11-02 | 1986-05-09 | Yoshida Industry Co | Process and apparatus for producing multicolour mouldings made of synthetic resin |
| JPS6246613A (en) * | 1985-08-24 | 1987-02-28 | Daiichi Kasei Kk | Multicolor molded part |
| FR2614574A1 (en) * | 1987-04-30 | 1988-11-04 | Sony Corp | DOUBLE INJECTION MOLDING DEVICE, IN PARTICULAR OF AN OPAQUE RESIN AND A TRANSPARENT RESIN |
| US5606781A (en) * | 1995-02-17 | 1997-03-04 | Velcro Industries, B.V. | Separable fastener having a bald perimeter rib bounded by fastening elements |
| JP2002240087A (en) * | 2001-02-16 | 2002-08-28 | Toyoda Gosei Co Ltd | In-mold coating molding method and in-mold coated molded item |
| JP4622116B2 (en) * | 2001-02-16 | 2011-02-02 | 豊田合成株式会社 | In-mold coating molding method and in-mold coating molding product |
| JP2009173025A (en) * | 2007-12-25 | 2009-08-06 | Kakuichi Kasei Kk | Injection molding apparatus, injection-molded body and its manufacturing method |
| US20110101007A1 (en) * | 2008-05-16 | 2011-05-05 | Sca Hygiene Products Ab | Method of making a dispenser or a part thereof and a dispenser or part made by said method |
| US9370888B2 (en) * | 2008-05-16 | 2016-06-21 | Sca Hygiene Products Ab | Method of making a dispenser or a part thereof |
| US10099412B2 (en) | 2008-05-16 | 2018-10-16 | Essity Hygiene And Health Aktiebolag | Method of making a dispenser or a part thereof and a dispenser or part made by said method |
| US10987839B2 (en) | 2008-05-16 | 2021-04-27 | Essity Hygiene And Health Aktiebolag | Dispenser part |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS642047B2 (en) | 1989-01-13 |
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