JPS5845016A - Manufacture of plastisol skin - Google Patents

Manufacture of plastisol skin

Info

Publication number
JPS5845016A
JPS5845016A JP56143364A JP14336481A JPS5845016A JP S5845016 A JPS5845016 A JP S5845016A JP 56143364 A JP56143364 A JP 56143364A JP 14336481 A JP14336481 A JP 14336481A JP S5845016 A JPS5845016 A JP S5845016A
Authority
JP
Japan
Prior art keywords
mold
plastisol
gelled
uncolored
sol
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
Application number
JP56143364A
Other languages
Japanese (ja)
Other versions
JPS6015455B2 (en
Inventor
Takashi Nishiyama
西山 峻
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.)
Mitsuboshi Belting Ltd
Original Assignee
Mitsuboshi Belting 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 Mitsuboshi Belting Ltd filed Critical Mitsuboshi Belting Ltd
Priority to JP56143364A priority Critical patent/JPS6015455B2/en
Publication of JPS5845016A publication Critical patent/JPS5845016A/en
Publication of JPS6015455B2 publication Critical patent/JPS6015455B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Moulds For Moulding Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

PURPOSE:To obtain readily a hollow skin, by spraying a plastisol on a mold inner surface to form a thin film, allowing the film to gel, adding an additional plastisol on the inner surfaces of the gelled film, allowing the additional plastisol to gel, removing the excess ungelled plastisol, and heating both the gelled layers to melt to be integrated. CONSTITUTION:Colored plastisol is sprayed by a spray gun 12 on the inner surfaces of the mold 2 in a rotating box 3 to form a film 13, and by heating the mold 2 the film 13 is allowed to gel. Then, uncolored plastisol 14 is filled in said mold 2 having the colored and gelled plastisol 13, and by heating the mold 2 a gelled layer is formed in the mold 2. Then the mold 2 is rotated 180 deg. to remove the excess uncolored plastisol. In this case, the colored and gelled layers and the uncolored and gelled layer thereon remain on the inner surfaces of the mold 2. The mold 2 is heated to melt both the gelled layers to be integrated, and is cooled to obtain a skin 15.

Description

【発明の詳細な説明】 本発明はスラッシュ成形により塩化ビニルプラスチゾル
から薄肉の中空表皮を成形する方法に関するものである
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for forming thin-walled hollow skins from vinyl chloride plastisol by slush molding.

自動車のダツシュボードカバーあるいはインストルメン
トパネルパッドの表皮等のスラッシュ成形法に関して従
来より多数提案されているが、そのうちの代表的な例と
してガススラッシュ法と呼ばれるものがある。この方法
は、プラスチゾルを型に充填し、次に空にすることによ
って型の内面に被膜を作り、熱いガスの圧力流を型の外
面に直接噴射してこの被膜をゲル化させ、次いでゲル化
した被覆の上に更にゾル被膜全作り、型の内外面にガス
の圧力流を噴射することにより溶融一体化した一定厚み
の表皮を得る工程からなる。しかしこの方法は長いコン
ベヤベルトと多数の型を同時使用しているため、特定色
の表皮を得る作業には適しているも、色の異なる表皮を
短時間で得る場合には適していない。
Many proposals have been made regarding slush molding methods for automobile dash board covers, instrument panel pad skins, etc., and a representative example of these is the so-called gas slush method. This method involves filling and then emptying a mold with plastisol to create a coating on the inner surface of the mold, injecting a pressure stream of hot gas directly onto the outer surface of the mold to gel this coating, and then gelling the mold. The process consists of forming a complete sol coating on the coated coating, and injecting a pressure stream of gas onto the inner and outer surfaces of the mold to obtain a skin of a constant thickness that is fused and integrated. However, this method uses a long conveyor belt and a large number of molds at the same time, so although it is suitable for obtaining a skin of a specific color, it is not suitable for obtaining skin of different colors in a short time.

また、他の方法として特公昭54−10581号公報に
開示されているように、型の表面に加熱オイルト冷却オ
イルを流動させるためのパイプを配管し、この型にゾル
を充満させた後、空にして被膜を作り、型に加熱オイル
を流しつつゲル化させ、次いでこれを繰り返して行ない
、型の表面に2層のゲル被膜を作り、しかる後、冷却オ
イルを流し、表皮を取り出す方法がある。この方法の大
きな特徴は表皮として不必要な部分の厚みを薄くするた
めに、ゲルの付着量のオイルの温度で制御できるところ
にある。
As another method, as disclosed in Japanese Patent Publication No. 54-10581, a pipe for flowing heated oil and cooling oil is installed on the surface of the mold, and after the mold is filled with sol, the mold is emptied. There is a method of creating a film by heating the mold, gelling it by pouring heated oil into the mold, then repeating this process to create a two-layer gel film on the surface of the mold, and then pouring cooling oil and removing the epidermis. . A major feature of this method is that the amount of gel deposited can be controlled by controlling the temperature of the oil in order to reduce the thickness of unnecessary parts of the skin.

しかし、この方法も前記同様、特定色の表皮を多数連続
して製造する場合には1問題がないが、自動車部品のよ
うに種々色の異った製品を迅速に作る場合には各色のカ
ラーゾル貯蔵タンク7.余剰ゾル回収槽および脱泡装置
をそれぞれ保有する必要があり、これによって設備費用
および設備配置スペースが増大する難点がある。しかも
、これらの方法は型の内面に同色のゾルを少くとも2回
以上被覆して一定厚みの表皮を作るところから、ダツシ
ュボードカバーのように高温、直射日光下で使用される
製品の表皮は変色を防止するために多量の安定剤の添加
を必要とするため、ゾルコストの上昇は避けられない。
However, as with the above method, there is no problem when manufacturing a large number of skins of a specific color in succession, but when manufacturing products of various colors such as automobile parts quickly, the color sol of each color is used. Storage tank7. It is necessary to have a surplus sol recovery tank and a degassing device, respectively, which has the disadvantage of increasing equipment costs and equipment installation space. Furthermore, since these methods create a skin of a certain thickness by coating the inner surface of the mold at least twice with a sol of the same color, the skin of products used under high temperatures and direct sunlight, such as dash board covers, is Since it is necessary to add a large amount of stabilizer to prevent discoloration, an increase in sol cost is unavoidable.

更には、比較的高硬度の表皮を作る場合、可塑剤の減量
が行われるが、ゾル粘度の上昇によってピンホール等の
成形不良が発生することも避けられない。
Furthermore, when creating a skin with relatively high hardness, the amount of plasticizer is reduced, but the increase in sol viscosity inevitably causes molding defects such as pinholes.

本発明は叙上のような従来の問題点に着目し、これを改
善すべくなされたもので、その目的は、色の異なる表皮
を短時間に且つ容易に製造すると共に、安定剤1着色剤
の添加量を少くシ、ピン水、−ル等の発生を少くした表
皮を製造することにあり、その特徴とするところは、第
1段階として着色プラスチックゾルを開口した型の内面
に吹き付けて均一な厚みの薄膜を形成せしめた後、加熱
することによってゲル層を形成し、次いで第2段階とし
て無着色あるいは前記着色プラスチゾルより着色剤、安
定剤等の添加量を少くしたプラスチゾルを着色ゲル層の
内面に充満させた後、所定厚のゲル層を形成するに必要
な加熱を行ない、その後第3段階として余剰の未ゲル化
プラスチゾルを排出して開口した型の内面に付着した両
ゲル層が完全に溶融一体化するまで加熱し、第4段階と
して中空の表皮を前記型から取り出すことの以上の各段
階よりなる。
The present invention has been made in order to improve the conventional problems as described above, and its purpose is to easily produce skins with different colors in a short time, and to use one stabilizer and one coloring agent. The aim is to produce a skin with a small amount of additives, which reduces the occurrence of stains, water, liquid, etc., and the feature is that in the first step, a colored plastic sol is sprayed onto the inner surface of the open mold to create a uniform coating. After forming a thin film with a certain thickness, a gel layer is formed by heating, and in the second step, a plastisol containing less coloring agents, stabilizers, etc. than the uncolored plastisol or the colored plastisol is used as a colored gel layer. After filling the inner surface, heating is performed as necessary to form a gel layer of a predetermined thickness, and in the third step, excess ungelled plastisol is discharged to completely remove both gel layers attached to the inner surface of the open mold. The hollow outer skin is heated until it is melted and integrated, and the fourth step is to remove the hollow skin from the mold.

以下、上記本発明の方法を添付図面に従って更に詳細に
説明する。
Hereinafter, the method of the present invention will be explained in more detail with reference to the accompanying drawings.

第1図は本発明製造方法を実施するスラッシュ成形装置
の概要を示し、図中(1)は金型装置で、開口した型(
2)が回転ボックス(3)内にセットされている。この
回転ボックス(3)は図における矢印方向に回転し得る
もので、該回転によって型内に充満されたゾルを排出で
きるようになっている。又、型(2)の温度は制御可能
であり、所要の温度に制御するために回転ボックスには
図示していないがパイプが設けられる。
Fig. 1 shows an outline of a slush molding apparatus for carrying out the manufacturing method of the present invention, and (1) in the figure is the mold apparatus, with an open mold (
2) is set in the rotating box (3). This rotating box (3) can be rotated in the direction of the arrow in the figure, and the sol filled in the mold can be discharged by this rotation. Further, the temperature of the mold (2) can be controlled, and in order to control the temperature to a desired level, a pipe (not shown) is provided in the rotating box.

一方、(4)は前記金型装置(1)に付設、されたゾル
貯蔵タンク装置であり、上方のゾル貯蔵タンク(9)と
下部の余剰ゾル回収槽(6)を備えて構成され、移動可
能な台車(5)の上に余“剰ゾル回収槽(6)が固定さ
れ、該回収槽(6)内に蓄積されたゾル□をパイプ(7
)によって脱泡装置(8)を経てゾル貯蔵タンク(9)
へと導いている。そして、このゾル貯蔵タンク(9)に
は本発明における1つの成分をなす無着色プラスチゾル
もしくは着色剤、安定剤の添加量が極めて少ないプラス
チゾルが貯蔵されている。
On the other hand, (4) is a sol storage tank device attached to the mold device (1), which is composed of an upper sol storage tank (9) and a lower surplus sol recovery tank (6), and is movable. A surplus sol collection tank (6) is fixed on top of the trolley (5), and the sol □ accumulated in the collection tank (6) is transferred to the pipe (7).
) to the sol storage tank (9) via the defoaming device (8)
leading to. The sol storage tank (9) stores uncolored plastisol, which is one of the components of the present invention, or plastisol in which the amount of colorant and stabilizer added is very small.

更に、図中、(10)は前記ゾル貯蔵タンク(9)に対
応するスプレーガン装置であり、貯蔵タンクα1)に保
存されたもう1つの成分である着色プラスチゾルを型に
吹き付は付着させるためのスプレーガン(ロ)を備えて
構成されている。
Furthermore, in the figure, (10) is a spray gun device corresponding to the sol storage tank (9), and is used to spray colored plastisol, which is another component stored in the storage tank α1), onto the mold. It is equipped with a spray gun (b).

次に、叙上のようなスラッシュ成形装置を使用して本発
明表皮の製造方法を実施する場合について第2〜6図に
従って説明する。
Next, a case in which the method for producing a skin of the present invention is carried out using the above-mentioned slush molding apparatus will be explained with reference to FIGS. 2 to 6.

先ず、本発明方法の第1段階として前記スプレーガン装
置00)の貯蔵タンク(1υに保存された着色プラスチ
ゾルをスプレーガン(ロ)によって回転ボックス(3)
内に配設された型(2)の内面に吹き付けて0.3部程
度の被膜α3)を形成し、該型(2)を150℃で30
秒間加熱することによって被膜(13)をゲル化させる
。(第2図及び第3図参照) もちろん、この場合、型の表面に同一色のゾルをスプレ
ーするに限らず、局所的に色の異なるゾルをスプレーし
てもよい。そのため、2つ以上のスプレーガンを使用す
ることができる。
First, in the first step of the method of the present invention, the colored plastisol stored in the storage tank (1υ) of the spray gun device 00) is transferred to the rotating box (3) by the spray gun (B).
A coating α3) of about 0.3 parts was formed by spraying on the inner surface of the mold (2) placed inside the mold (2), and the mold (2) was heated at 150°C for 30 minutes.
The coating (13) is gelled by heating for seconds. (See FIGS. 2 and 3) Of course, in this case, it is not limited to spraying sol of the same color onto the surface of the mold, but may also locally spray sol of a different color. Therefore, more than one spray gun can be used.

ここで使用する着色プラスチックゾルの配合(重量部)
はゼオン202.40部、DOA、65部、液状Oct
 、 Bd安定剤、2部、炭酸カルシウム20部1着色
顔料5部である。
Formula of colored plastic sol used here (parts by weight)
is 202.40 parts of Zeon, 65 parts of DOA, liquid Oct.
, Bd stabilizer, 2 parts, calcium carbonate 20 parts, color pigment 5 parts.

次に第2段階としてゾル貯蔵タン、り(9)に貯蔵され
た無着色プラスチゾル0→を着色ゲル層を有する前記型
(2)に充満し、型(2)を150cまで加熱し、約0
51II+のゲル層を型(2)内に作成する。(第4図
参照) かくて、前段階作業終了後、第3段階として前記型(2
)を180部回転させることにより余剰の無着色プラス
チックを排出する。(第5図参照)この時、型(′2)
の内面には着色ゲル層と無着色のゲル層が積層されて残
っている。続いて、この型につき、雨音ゲル層が完全に
溶融し一体化するまで約250℃まで型を加熱する。そ
して、最後に、第4段階として前記型(2)を約60℃
まで冷却した後、得られた表皮に)を型(2)から取り
出し作業を終了する。
Next, in the second step, the uncolored plastisol 0 → stored in the sol storage tank (9) is filled into the mold (2) having the colored gel layer, and the mold (2) is heated to 150°C, and the mold (2) is heated to about 0.
A gel layer of 51II+ is created in mold (2). (See Figure 4) Thus, after completing the previous stage work, the mold (2
) by 180 parts to discharge excess uncolored plastic. (See Figure 5) At this time, the mold ('2)
A colored gel layer and an uncolored gel layer remain laminated on the inner surface. Subsequently, the mold is heated to about 250° C. until the Amane gel layer is completely melted and integrated. Finally, in the fourth step, the mold (2) is heated to about 60°C.
After cooling to a temperature of 100%, the obtained skin (2) is removed from the mold (2) and the operation is completed.

なお、ここで使用する無着色プラスチゾルの配合、(重
量部)けゼオン13’5J、100部、D。
The formulation of the uncolored plastisol used here is (parts by weight) Kezeon 13'5J, 100 parts, D.

P、60部、DOA、5部、フェロ−5163゜3部、
サイザー11tP0.4部である。しかし、本発明はか
かる無着色プラスチゾルのみに限定されるものではなく
、着色剤、安定剤の添加量が少ないプラスチゾルあるい
は発泡可能なゾルでも、随時使用可能である。
P, 60 parts, DOA, 5 parts, Ferro-5163° 3 parts,
It is 0.4 parts of Sizer 11tP. However, the present invention is not limited to such uncolored plastisols, and plastisols containing small amounts of colorants and stabilizers or foamable sols can be used at any time.

かくして、以上の段階を経て得られた表皮は着色要約0
.3部mlに対して無着色要約0.51111を有して
なり、全肉厚を着色層で構成する場合に対し高価な着2
色剤、安定剤の使用量は半減することになムまた、無着
色プラスチゾルはかなり高粘度になっても第2段階の型
充満時、既に型内面に着色ゾルのゲル層が形成されてい
るところから、本発明方法では型表面四部のピンホール
等の発生がなく高硬度の表皮を形成することが可能であ
る。
Thus, the epidermis obtained through the above steps has a color summary of 0.
.. It has an uncolored coating of 0.51111 per 3 parts ml, and is expensive compared to the case where the entire wall thickness is composed of a colored layer.
The amount of colorants and stabilizers used will be halved.Also, even if uncolored plastisol has a fairly high viscosity, a gel layer of colored sol will already be formed on the inside of the mold during the second stage of filling the mold. Therefore, in the method of the present invention, it is possible to form a highly hard skin without the occurrence of pinholes or the like on the four parts of the mold surface.

更に、特に本発明の最も大きな効果は、前記第1段階で
適用されるスプレー法による着色ゾルはスラッシュの場
合と異ってゾルの回収が不要であるところから、着色ゾ
ルの貯蔵タンクは小容量のタンクでも製造可能であり、
また色別の余剰ゾル回収槽、脱泡装置は一切不要となる
ことである。
Furthermore, the most significant effect of the present invention is that unlike the case of slush, the colored sol applied in the first step by the spray method does not require recovery, so the storage tank for the colored sol has a small capacity. It can also be manufactured with a tank of
Additionally, there is no need for surplus sol recovery tanks or defoaming devices for each color.

以上のように、本発明方法は従来法に比し、格段に優れ
た効果を有し、実用性に富み、工業上有利であることは
もとより、経済性1品質の面でもその実施が期待される
方法である。
As described above, the method of the present invention has much better effects than the conventional method, is highly practical, is industrially advantageous, and is expected to be implemented in terms of economy and quality. This is a method to

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

第1図は本発明製造方法の実施に使用するスラッシュ成
形装置の概要図、第2図乃至第6図はそれぞれ本発明方
法の製造工程を示す説明図である。 (2)−・・・・・・型(3)・−・・・・・回転ボッ
クス、。 Q3)・・・・・第1工程プラスチゾル被膜。 (I→・・・・・・・第2工程プラスチゾル(ロ)・・
・・−・・表皮。 2 竿を目 手続補正書(方式) %式% 2、花明  の名称    プラスチゾル表皮の製造方
法3、補正をする者 事件との関係  特 許   出願人
FIG. 1 is a schematic diagram of a slush molding apparatus used to implement the manufacturing method of the present invention, and FIGS. 2 to 6 are explanatory views showing the manufacturing steps of the method of the present invention, respectively. (2)--type (3)--rotating box. Q3)...First step plastisol coating. (I→・・・・・・Second step plastisol (B)・・
・・・−・Epidermis. 2. Form of amendment (method) % formula % 2. Name of Hanamei Plastisol skin manufacturing method 3. Relationship with the case of the person making the amendment Patent Applicant

Claims (1)

【特許請求の範囲】 1、 プラスチゾルを型の内面に吹き付けて均一な厚み
の薄膜を形成せしめ、次いで該薄膜をゲル化し薄膜のゲ
ル層を形成する第1工程、前記第1工程で形成されたゲ
ル層の内面に更にプラスチゾルを充満させた後所定厚の
ゲル層を形成する第2工程、その後、前記型より余剰の
未ゲル化プラスチゾルを排出して型の内面に付着した両
者ゲル層が完全に溶融一体化するまで型を加熱する第3
工程及び引続き前記工程で得られた表皮を型から取り出
す第4工程の各工程からなることを特徴とするチゾルで
あり、第2工程におけるプラスチゾルが無着色又は前記
第1工程のプラスチゾルより着色剤、安定剤等の添加量
の少ないプラスチゾルである特許請求の範囲第1項記載
のプラスチゾル表皮の製造方法。 & 型が回転ボックス内にセットされており、回転ボッ
クスを回転させることによって型内の余剰未ゲル化プラ
スチゾルを排出する特許請求の範囲第1項又は第2項記
載のプラスチゾル表皮の製造方法。
[Claims] 1. A first step of spraying plastisol onto the inner surface of the mold to form a thin film with a uniform thickness, and then gelling the thin film to form a thin gel layer; The second step is to further fill the inner surface of the gel layer with plastisol and then form a gel layer of a predetermined thickness.After that, excess ungelled plastisol is discharged from the mold, and both gel layers adhering to the inner surface of the mold are completely removed. The third heats the mold until it melts into one piece.
and a fourth step in which the epidermis obtained in the above step is removed from the mold, and the plastisol in the second step is uncolored or has a coloring agent, The method for producing a plastisol skin according to claim 1, wherein the plastisol contains a small amount of stabilizers and the like. & The method for producing a plastisol skin according to claim 1 or 2, wherein the mold is set in a rotating box, and the excess ungelled plastisol in the mold is discharged by rotating the rotating box.
JP56143364A 1981-09-10 1981-09-10 Method for manufacturing plastisol skin Expired JPS6015455B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56143364A JPS6015455B2 (en) 1981-09-10 1981-09-10 Method for manufacturing plastisol skin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56143364A JPS6015455B2 (en) 1981-09-10 1981-09-10 Method for manufacturing plastisol skin

Publications (2)

Publication Number Publication Date
JPS5845016A true JPS5845016A (en) 1983-03-16
JPS6015455B2 JPS6015455B2 (en) 1985-04-19

Family

ID=15337061

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56143364A Expired JPS6015455B2 (en) 1981-09-10 1981-09-10 Method for manufacturing plastisol skin

Country Status (1)

Country Link
JP (1) JPS6015455B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60101014A (en) * 1983-11-07 1985-06-05 Mitsubishi Kasei Vinyl Co Manufacture of composite foamed and molded item
JPS62256616A (en) * 1986-04-30 1987-11-09 Mitsuboshi Belting Ltd Method and device for molding composite skin material
JPS6434710A (en) * 1987-07-30 1989-02-06 Mitsuboshi Belting Ltd Preparation of skin
JP2019001186A (en) * 2017-06-12 2019-01-10 カルソニックカンセイ株式会社 Translucent skin material, and method for manufacturing the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62173060A (en) * 1986-01-22 1987-07-29 Kobe Steel Ltd Electromagnetic stirrer controlling method in continuous casting equipment

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60101014A (en) * 1983-11-07 1985-06-05 Mitsubishi Kasei Vinyl Co Manufacture of composite foamed and molded item
JPS6327167B2 (en) * 1983-11-07 1988-06-02 Mitsubishi Kasei Vinyl
JPS62256616A (en) * 1986-04-30 1987-11-09 Mitsuboshi Belting Ltd Method and device for molding composite skin material
JPH0548730B2 (en) * 1986-04-30 1993-07-22 Mitsuboshi Belting Ltd
JPS6434710A (en) * 1987-07-30 1989-02-06 Mitsuboshi Belting Ltd Preparation of skin
JP2019001186A (en) * 2017-06-12 2019-01-10 カルソニックカンセイ株式会社 Translucent skin material, and method for manufacturing the same

Also Published As

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JPS6015455B2 (en) 1985-04-19

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