JPS6048334A - Manufacture of molded item with grain pattern - Google Patents

Manufacture of molded item with grain pattern

Info

Publication number
JPS6048334A
JPS6048334A JP15493283A JP15493283A JPS6048334A JP S6048334 A JPS6048334 A JP S6048334A JP 15493283 A JP15493283 A JP 15493283A JP 15493283 A JP15493283 A JP 15493283A JP S6048334 A JPS6048334 A JP S6048334A
Authority
JP
Japan
Prior art keywords
molded product
molded
mold
thermoplastic resin
heating
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
JP15493283A
Other languages
Japanese (ja)
Inventor
Giichi Kawashima
川島 義一
Takayasu Kobayashi
小林 孝保
Tokihiro Watanabe
渡辺 時寛
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.)
Sumitomo Bakelite Co Ltd
Original Assignee
Sumitomo Bakelite Co 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 Sumitomo Bakelite Co Ltd filed Critical Sumitomo Bakelite Co Ltd
Priority to JP15493283A priority Critical patent/JPS6048334A/en
Publication of JPS6048334A publication Critical patent/JPS6048334A/en
Pending legal-status Critical Current

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  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To obtain the titled molded item that is wear resisting and lightweight, for example, suitably a steering wheel of an automobile, by molding a thermoplastic resin filled with a hollow filler, introducing the thus molded resin in a cavity of a mold that has an embossing pattern, and heating the surface of the molded resin. CONSTITUTION:After a thermoplastic resin filled with a hollow filler (preferably having an average particle diameter of up to 200mu) is injection molded, the molded body is placed in a mold having a cavity with an embossing pattern, the surface of the molded body is heated preferably to 140-240 deg.C to be melted, embossed and formed to have a thermoplastic resin layer thereby producing the aimed item. To improve the molded item surface in hardwearing property, after the injection molding a thermoplastic resin layer is attached to the molded item surface via an adhesive layer or directly and integrated therewith in the mold.

Description

【発明の詳細な説明】 本発明は成形品表面にシボ模様をもち、かつ中空フィラ
ーを充填した熱可ソ性樹脂によりて軽量化された成形品
の製造方法に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a molded article having a textured surface and reduced in weight by using a thermoplastic resin filled with hollow filler.

ポリ塩化ビニルに代表される熱可ソ性樹脂による射出成
形品は家電製品、雑貨、自動車部品等に広範囲に使用さ
れている。
Injection molded products made of thermoplastic resins such as polyvinyl chloride are widely used in home appliances, miscellaneous goods, automobile parts, etc.

特に近年自動車内装材には軽黛化高品質化が要求され、
成形品の目付けを軽くする手法が種々構しられている。
In particular, in recent years, there has been a demand for lighter weight and higher quality automobile interior materials.
Various methods have been devised to reduce the basis weight of molded products.

成形加工法、成形設備を変災せずに容易に実現できる方
策は熱分解型あるいは熱膨張型の発泡剤を混入した熱可
ソ性樹脂による発泡成形品である。
A measure that can be easily implemented without causing any damage to the molding process or molding equipment is to use a foamed molded product made of a thermoplastic resin mixed with a thermally decomposed or thermally expandable foaming agent.

しかしながら、成形品の表面状態によって製品価値が決
まるようなものには適用不可能であった。
However, this method cannot be applied to molded products whose product value is determined by the surface condition of the molded product.

もちろん表面に他の非発泡のスキンを塗装などの手段に
よって付着させることはできるが、成形品表面にシボ模
様をつける場合などでは解決をはかることは不可能であ
った。又、塗装工程は価格あるいは作業衛生環境からも
あまシ好ましい方策ではない。
Of course, it is possible to attach other non-foamed skins to the surface by means such as painting, but it has not been possible to solve this problem when creating a textured pattern on the surface of a molded product. Furthermore, the painting process is not a desirable method in terms of cost or working hygiene environment.

軽量化する他の方法としては、中空フィラーを熱可ソ性
樹脂に混合する方法がある。この方法では、射出成形の
さいの圧力、ある匹はこれ以前に混練圧力でフィラーの
破損が生じなければ、外観の良い軽い成形品が得られる
Another method for reducing weight is to mix hollow fillers with thermoplastic resin. In this method, if the filler does not break due to the pressure during injection molding, or even the kneading pressure prior to this, a light molded product with a good appearance can be obtained.

しかしながら、この方法による成形品、たとえば人間の
手で常に接触される成形品である自動車用ハンドルでは
充分な磨耗に対する抵抗性がなく実用にたえないという
欠点がある。このため、なんらかの手法によって磨耗に
対する抵抗力を向上させないかぎり、中空フィラーによ
る軽量化は実現できないものであった。
However, molded products produced by this method, such as automobile handles that are constantly touched by human hands, have the disadvantage that they do not have sufficient resistance to wear and are not practical. For this reason, weight reduction by hollow fillers could not be achieved unless resistance to wear was improved by some method.

本発明者は、上記の事象に鑑み、鋭意検討した結果、本
発8A[至ったものである。
In view of the above-mentioned phenomenon, the present inventors have made intensive studies and have arrived at the present invention 8A.

本発明とは、中空フィラーを充填した熱可ソ性樹脂を射
出成形し、この成形体をシボ模様を付けたキャビティを
もつ型内に入れ、成形体表面を再加熱して表面を溶融さ
せシボ模様を付けかつ成形品表面に樹脂層を再成形する
ことを特徴とする軽量化されたシが模様を有する成形品
の製造方法である。
The present invention involves injection molding thermoplastic resin filled with hollow fillers, placing this molded body into a mold with a cavity with a textured pattern, and reheating the surface of the molded body to melt the surface and create a textured shape. This is a method for producing a lightweight molded product having a pattern, which is characterized by adding a pattern and remolding a resin layer on the surface of the molded product.

さらには、極度に成形品表面の摩耗性を向上させる必要
のあるものには射出成形後の成形品表面に接着剤層を介
するか又は直接成形品表面に成形品の表皮となる熱町ン
性樹脂を付着させ型内にて一体化させる製造方法である
Furthermore, in cases where it is necessary to extremely improve the abrasion resistance of the surface of the molded product, it is necessary to apply an adhesive layer to the surface of the molded product after injection molding, or directly apply it to the surface of the molded product to provide heat-damping properties that become the skin of the molded product. This is a manufacturing method in which resin is attached and integrated within a mold.

又、表皮をもうける方法として型内面に成形品の表皮と
なる熱可ソ性樹脂を付着させ、射出成形品を直接又は表
面に接着剤を付は型内で一体化させる製造方法である。
In addition, as a method for forming a skin, a thermoplastic resin that will become the skin of the molded product is attached to the inner surface of the mold, and the injection molded product is integrated within the mold either directly or by applying an adhesive to the surface.

本発明による射出成形体の表面を加熱する方式には前述
したごとく高周波誘電加熱による直接法と、型からの熱
伝導によって間接的に加熱する方法がある。
Methods for heating the surface of the injection molded article according to the present invention include a direct method using high-frequency dielectric heating, as described above, and an indirect method using heat conduction from the mold.

これらの方法は成形体の形状、肉厚、成形サイクルなど
によって使9わけすることが必要である。
It is necessary to use these methods depending on the shape, wall thickness, molding cycle, etc. of the molded product.

型からの熱伝導罠よる方法では型の加熱、冷却にエネル
ギーロスが大きい欠点があり、萬周波誘亀加熱では、射
出成形体が異質の材質にて構成されているものでは誘電
率の差があるため、成形体を加熱できない場合があると
hう欠点がおる。
The method that relies on heat conduction traps from the mold has the drawback of large energy losses in heating and cooling the mold, and the method using multi-frequency dielectric heating can reduce the difference in dielectric constant when the injection molded product is made of different materials. Therefore, there is a drawback that it may not be possible to heat the molded article.

しかしながら尚周波誘電加熱法はきわめて短時間に成形
体を加熱でき、型は加熱されないためエネルギーロスが
少なく、成形サイクルも短かくできるため有効な手段で
ある仁とが判明した。
However, the frequency dielectric heating method has been found to be an effective method because it can heat the molded object in a very short time, the mold is not heated, so there is little energy loss, and the molding cycle can be shortened.

これらの各加熱方式の特徴を表1に示した。Table 1 shows the characteristics of each of these heating methods.

本発明に用いられる中空フィラーを充填した熱可ソ性樹
脂とはJ工S K 6301に規定されるJ工8A型硬
度d1による硬さ表示で100から45の範中に含まれ
るものであれば特定のものに限定されるものではない。
The thermoplastic resin filled with the hollow filler used in the present invention is one that has a hardness of 100 to 45 according to J-8A type hardness d1 specified in J-S K 6301. It is not limited to a specific thing.

中空フィラーも特定のものに限定されずフェノール系な
どの樹脂系ペースのもの、ガラス、シラス系のようなシ
リカ系のものなど有機無機をとわず本発明の主旨に反す
るものではない。
The hollow filler is not limited to a specific one, and may be organic or inorganic, such as resin-based ones such as phenol-based ones, glass, and silica-based ones such as Shirasu-based ones, which do not go against the gist of the present invention.

しかしながら、フィラーの粒子径は大きすぎると混線性
に問題があり、添加するフィラーは平均粒子径200ミ
クロン以下のものがのぞましい。
However, if the particle size of the filler is too large, there will be a problem with crosstalk, so the filler added preferably has an average particle size of 200 microns or less.

中空フィラー以外の添加物としては、たとえば塩化ビニ
ル樹脂であれば「工業調査会」発行の塩化ビニル材料便
覧に記載されているものであればなんら本発明の主旨に
反するものでもない。
Additives other than the hollow filler, such as vinyl chloride resin, do not go against the spirit of the present invention as long as they are listed in the Vinyl Chloride Material Handbook published by Kogyo Kenkyukai.

他のオレフィン系、ポリウレタン系等々も各々公知の出
版物に記載されているものであればなんら問題ない。
There is no problem with other olefins, polyurethanes, etc. as long as they are described in known publications.

さらに成形収縮によるヒケ防止あるいはさらに軽量化す
る目的で化学発泡剤を併用することも可能である。
Furthermore, it is also possible to use a chemical foaming agent in combination for the purpose of preventing sinkage due to molding shrinkage or further reducing the weight.

さらに炭酸カルシウムを代表とする充填剤、発泡セルの
保持性を高めるアクリル系のポリマー、オリゴマー、着
色用顔料、紫外線吸収剤、酸化防止剤、ポリウレタン、
KDA系のポリマー系改質剤等を添加することを限定す
るものではない。
In addition, fillers such as calcium carbonate, acrylic polymers that improve the retention of foam cells, oligomers, coloring pigments, ultraviolet absorbers, antioxidants, polyurethane,
The addition of KDA-based polymer modifiers and the like is not limited to this.

又、射出成形による成形物表面に付着させる表皮となる
熱旬ソ性樹脂組成物も本発明の主旨を限定するものでは
なく、内層となる熱町ン性樹脂組成物から発泡剤をぬい
たものと本質的には同一のものを使用できる。
Furthermore, the thermoplastic resin composition that forms the outer layer that is attached to the surface of the molded product by injection molding is not intended to limit the gist of the present invention, and the thermoplastic resin composition that forms the inner layer without the foaming agent may be used. essentially the same thing can be used.

また、内外層間の熱可ン性樹脂組成物がきわめて相溶性
が急く、熱融着しにくい場合は接着剤を介在させること
によって本発明を実施できる。接着剤も種々のタイプが
あるが、これも本発明を限定するものではなく、内外層
の樹脂の接着が保持できるものであれば問題はない。
Furthermore, when the thermoplastic resin compositions between the inner and outer layers are extremely compatibility-prone and difficult to heat-seal, the present invention can be carried out by interposing an adhesive. There are various types of adhesives, but these do not limit the present invention, and there is no problem as long as they can maintain adhesion between the resins of the inner and outer layers.

本発明の第1段階は中空フィラーを充填した熱可ソ性樹
脂を射出成形によって成形体とする工程である。この工
程では中空フィラーの破損を生じやすいために、高いせ
ん断力がかからないようにすることが望ましい。
The first step of the present invention is the step of molding a thermoplastic resin filled with a hollow filler into a molded body by injection molding. Since the hollow filler is likely to be damaged in this step, it is desirable to avoid applying high shearing force.

第2段階は第1段階で得られた成形体をその形状をした
キャビティをもち、キャビティ内面に所望のンボ模様を
もつ型内に入れ、直接、間接的に加熱し成形体表面を再
加熱溶融し、再成形する工程である。
In the second step, the molded product obtained in the first step is placed into a mold with a cavity of the same shape and a desired pattern on the inner surface of the cavity, and the molded product surface is reheated and melted by direct or indirect heating. This is the process of reshaping.

射出成形体は成形体内部に均一な中空フィラー密度をも
っているが、表面は樹脂のきわめてうすい層になってい
るが再加熱溶融によって樹脂の凝集力によってさらに樹
脂層が厚くなる性質がある。
The injection molded product has a uniform hollow filler density inside the molded product, but the surface has an extremely thin layer of resin, but when reheated and melted, the resin layer tends to become thicker due to the cohesive force of the resin.

このために、シ?模様のついた良好な外観のものが得ら
れると考えられる。
For this reason, Shi? It is thought that a product with a pattern and a good appearance can be obtained.

本発明による再加熱方式には第1表に示した各方式があ
り、これらの方式は設備費、成形サイクル、作業環境な
どを配慮して撰択すべきであって本発明の目的とすると
ころは第一段階で得られた成形体の表面温度を100℃
以上、400以下に保持し、この熱によシ表面層を溶融
再成形することによってシゼ模様をもち樹脂表皮ノーを
もつ外観の良い成形品を得るものである。
The reheating method according to the present invention includes the various methods shown in Table 1, and these methods should be selected taking into consideration equipment costs, molding cycles, working environment, etc., and this is the purpose of the present invention. The surface temperature of the molded body obtained in the first step is 100℃.
By keeping the viscosity at 400 or below and melting and re-molding the surface layer using heat, a molded product with a crinkle pattern and a resin skin with a good appearance can be obtained.

特に成形体の表面温度は140 C以上2400以下が
槓々の検討よフ良好であることが判明して匹る。
In particular, it has been found that a surface temperature of 140 C or more and 2,400 C or less for the molded body is favorable as compared to the study conducted by Kana.

140℃以下では、表面のダル化不足で61,240C
以上では光沢がいちじるしく出、又塩化ビニル樹脂は熱
分解しやすいため時間のコントロールがいちじるしく困
難になる。
At temperatures below 140℃, the temperature is 61,240℃ due to insufficient dulling of the surface.
In the above case, the luster becomes noticeable, and since vinyl chloride resin is easily thermally decomposed, it becomes extremely difficult to control the time.

又、成形体に剛性を付与するために鉄芯、ABS。In addition, an iron core and ABS are used to give rigidity to the molded body.

Pi?、 jJYLON等の熱町ソ性樹脂、フェノール
等の熱硬化性樹脂の骨材を射出成形による成形体の内部
に一部又は全体をそう人した成形品を製造することが容
易である。
Pi? It is easy to manufacture a molded product by injection molding a thermosetting resin such as JYLON or a thermosetting resin such as phenol into a molded product, partially or completely.

父、成形品の7jツ′イ/によっては射出成形による成
形体と表皮となる熱町ソ性樹脂との間に骨材をそう人す
ることも容易である。
Depending on the nature of the molded product, it is easy to insert aggregate between the molded product by injection molding and the thermoplastic resin that becomes the skin.

従って、インサートされる骨材によっては制限される成
形方法もある。
Therefore, some molding methods are limited depending on the aggregate to be inserted.

本発明に用いる中空フィラーのタイプ、及び低比重化す
るために多量に中空フィラーを添加する場合には、再加
熱溶融だけでは成形品表面の樹脂表皮層がうすく、いち
じるしく摩耗性に劣ることがある。従ってこの場合に#
;t、射出成形後の成形体に接着剤層を介するか、又は
直接に成形品の表皮となる熱硬化性樹脂を付着させ型内
で加8N成形することが必要である。
Depending on the type of hollow filler used in the present invention, or when a large amount of hollow filler is added to lower the specific gravity, reheating and melting alone may result in a thin resin skin layer on the surface of the molded product, resulting in significantly inferior abrasion properties. . Therefore in this case #
;t. After injection molding, it is necessary to attach a thermosetting resin that will become the skin of the molded product either via an adhesive layer or directly to the molded product, and then perform 8N molding in a mold.

表皮となる樹脂が射出成形体と接着性がある場合は接着
剤が不要であるが相浴性、接着性が不良の場合は接着剤
が必要となる。
If the resin serving as the skin has adhesive properties with the injection molded article, no adhesive is required, but if the compatibility or adhesive properties are poor, an adhesive is required.

射出成形体がポリ塩化ビニルの場合は塩化ビニルゾル又
Fi、接着剤を介してポリ塩化ビニル組成物の粉体を付
着させてから加熱再成形することによって外観の良い成
形品を得ることができる。
When the injection molded article is made of polyvinyl chloride, a molded article with a good appearance can be obtained by attaching powder of the polyvinyl chloride composition via vinyl chloride sol, Fi, or an adhesive, and then heating and remolding.

又、型内面に表皮となる熱町ソ性樹脂を付着させて加熱
再成形することも可能である。
It is also possible to attach a thermosetting resin to the inner surface of the mold and re-shape it by heating.

これらの方法では表皮となる樹脂の形状、粘性、所望の
肉厚によって選択することが必要である。
These methods require selection depending on the shape, viscosity, and desired thickness of the resin forming the skin.

すなわち、成形体表面に付着させる熱硬化性樹脂は成形
体と直接にあるいは接着剤を介在して一体化することが
必要であるが、これ以外にも付着肉厚などが重要である
That is, it is necessary that the thermosetting resin adhered to the surface of the molded body be integrated with the molded body either directly or through an adhesive, but other factors such as the thickness of the adhesive are also important.

たとえば車両用ハンドルの場合は耐マモウ性が重要であ
るため材料の選定と肉厚が必要である。
For example, in the case of a vehicle steering wheel, the material and wall thickness must be selected because anti-corrosion resistance is important.

父、わずかの「ヒラカキ」で成形品の表皮がはがれ、射
出成形による成形体部が露出するiJ能性もあり、品質
、用途によって対応が必要であるが必要以上に厚くする
と重量が増加し、成形品の触感も悪化するのでうすい方
が経済効果も当然旨くなる。
Father, there is also the possibility that the outer skin of the molded product will peel off with a slight "flutter" and the molded part made by injection molding will be exposed, so measures need to be taken depending on the quality and application, but if it is thicker than necessary, the weight will increase. Since the feel of the molded product also deteriorates, the thinner it is, the better the economical effect will be.

次に本発明を実施例に従って説明する。Next, the present invention will be explained according to examples.

実施例 ポリ塩化ビニル 100 班債部 (住人化学■製 5x−11s P−1100)DOP
 60 エポキシ化大豆油 3 (大日本インキ■製 ハイディックw−100)ステア
リン酸カルシウム l ステアリン酸亜鉛 1 中空ガラスフイラー 70 (エマージン、アンドカミンク社IJi MO−37)
ヲリボンプレンダーで均一に混合し、50鰭押出機にて
直径約4論のペレットを製作した。
Example polyvinyl chloride 100 unit bond department (5x-11s P-1100 manufactured by Juju Kagaku ■) DOP
60 Epoxidized soybean oil 3 (Hidik w-100 manufactured by Dainippon Ink ■) Calcium stearate l Zinc stearate 1 Hollow glass filler 70 (Emergin, Andka Mink IJi MO-37)
The mixture was mixed uniformly using a ribbon blender, and pellets with a diameter of about 4 mm were produced using a 50-fin extruder.

これを弱オンスの射出成形機にて14咽径の鉄製のノや
イブ状のリングをもつ自動車用ノ・/ドルを成形した。
This was then molded into an automobile nozzle/dollet having a 14-diameter iron tube-shaped ring using a small-ounce injection molding machine.

得られた成形体は比重帆8であった。The obtained molded product had a specific gravity of 8.

この成形体を各々の製造方法によって成形品とした。こ
の結果tl−第2表に示す。
This molded body was made into a molded article by each manufacturing method. The results are shown in Table 2.

ここで、塩化ビニルゾル、ポリ塩化ビニル組成物の粉体
の配合は次の様である。
Here, the blending of the vinyl chloride sol and the powder of the polyvinyl chloride composition is as follows.

ゾル 塩化ビニール 100 重量部 (住人化学■製 HX−13P=1300 )DOP 
60 エポキシ化大豆油 3 ステアリン酸カルシウム l ステアリン酸亜鉛 l 顔料、その他の添加物 必要、IM甘 せ体 塩化ビニル 100 重量部 (住人化学eklHEIX−70F=750 )DOP
 60 エポキシ化大豆油 3 ステアリン酸カルシウム 1 ステアリン酸亜鉛 l 顔料、その他の添加物 必要適量 これらの実施例からも推察されるごとく、本発明は射出
成形後の外観にかかわらず、シボ模様があり、良好な表
皮層をもつ成形品を得るすぐれた成形方法である。
Sol vinyl chloride 100 parts by weight (HX-13P=1300 manufactured by Jujutsu Kagaku ■) DOP
60 Epoxidized soybean oil 3 Calcium stearate l Zinc stearate l Pigments and other additives Necessary, IM sweetened vinyl chloride 100 parts by weight (Jinmin Chemical eklHEIX-70F=750) DOP
60 Epoxidized soybean oil 3 Calcium stearate 1 Zinc stearate l Pigments and other additives Necessary and appropriate amounts As can be inferred from these examples, the present invention has a grain pattern and is good in appearance after injection molding. This is an excellent molding method for obtaining molded products with a soft skin layer.

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

第1図は射出成形による成形体の概略平面図、第2図は
射出成形体のA −A’断面図、第3図は射出成形体を
熱ofソ性樹脂のゾル中に浸漬している状態の断面図、 第4図は古加熱用の型内に成形体を装着した状態断面図
、 第5図は得られた成形品の断面図を示す。 1は骨材、 2は中空フィラー人り熱可ソ性樹脂組成物、3はゾル、
 5は型冷却用通路、 6はシボ模様をもつゾルによって形成された表皮層。 特許出願人 住友ベークライト株式会社第1図 第2図 第4図 第5図
Fig. 1 is a schematic plan view of a molded product made by injection molding, Fig. 2 is a sectional view taken along line A-A' of the injection molded product, and Fig. 3 shows the injection molded product immersed in a sol of a heat-of-solvent resin. FIG. 4 is a cross-sectional view of the molded article installed in a pre-heating mold, and FIG. 5 is a cross-sectional view of the obtained molded article. 1 is aggregate, 2 is a hollow filler-containing thermoplastic resin composition, 3 is sol,
5 is a mold cooling passage, and 6 is a skin layer formed by a sol with a textured pattern. Patent applicant Sumitomo Bakelite Co., Ltd. Figure 1 Figure 2 Figure 4 Figure 5

Claims (4)

【特許請求の範囲】[Claims] (1) 中空フィラーを充填した熱可ソ性樹脂を射出成
形にて成形した後、この成形体を成形品と接触する面に
シ肘模様を付けたキャビティをもつ型の内に入れ、成形
体表面を加熱することによって射出成形品表面を溶融し
、シメ模様を付けかっ熱町ソ性樹脂層を再成形すること
を特徴とする軽量化されたシボ模様を有する成形品の製
造方法。
(1) After molding the thermoplastic resin filled with hollow filler by injection molding, the molded body is placed in a mold having a cavity with an elbow pattern on the surface that contacts the molded product. A method for manufacturing a lightweight molded article having a grain pattern, characterized by melting the surface of the injection molded article by heating the surface, and remolding a heat-resistant resin layer with a wrinkle pattern.
(2)加熱することが熱可ソ性樹脂よシも電気誘電率の
小さい樹脂段の型を用いて、高周波誘電加熱によりて型
の外部よシ行う特許請求の範囲第1項記載のシボ模様を
有する成形品の製造方法。
(2) The grain pattern according to claim 1, in which the heating is carried out by high-frequency dielectric heating on the outside of the mold by using a mold made of a resin step whose electric permittivity is smaller than that of a thermosoluble resin. A method for manufacturing a molded product having
(3)射出成形後の成形品に接着剤層を介するか又は直
接に成形品の表皮となる熱可ソ性樹脂を付着させ屋内で
1体化させる特許請求の範囲第1項又は第2項記載のシ
ボ模様を有する成形品の製造方法。
(3) Claims 1 or 2 in which a thermoplastic resin that becomes the skin of the molded product is attached to the molded product after injection molding through an adhesive layer or directly and integrated indoors. A method for manufacturing a molded product having the grain pattern described above.
(4)射出成形品を型に入れる前に型内面に成形品の表
皮となる熱可ソ性樹脂層を付着させ加熱一体化する特許
請求の範囲第1項又は第2項記載のシボ模様を有する成
形品の製造方法。
(4) Before putting the injection molded product into a mold, a thermoplastic resin layer that will become the skin of the molded product is attached to the inner surface of the mold and integrated by heating. A method for manufacturing a molded product having
JP15493283A 1983-08-26 1983-08-26 Manufacture of molded item with grain pattern Pending JPS6048334A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15493283A JPS6048334A (en) 1983-08-26 1983-08-26 Manufacture of molded item with grain pattern

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15493283A JPS6048334A (en) 1983-08-26 1983-08-26 Manufacture of molded item with grain pattern

Publications (1)

Publication Number Publication Date
JPS6048334A true JPS6048334A (en) 1985-03-16

Family

ID=15595089

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15493283A Pending JPS6048334A (en) 1983-08-26 1983-08-26 Manufacture of molded item with grain pattern

Country Status (1)

Country Link
JP (1) JPS6048334A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02144845A (en) * 1988-11-26 1990-06-04 Furukawa Battery Co Ltd:The Battery container
JPH06278260A (en) * 1993-03-29 1994-10-04 Japan Vilene Co Ltd Skin material for car interior, material for car interior and manufacture of them

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5140590A (en) * 1974-10-01 1976-04-05 Tsutomu Yoshida TAIKABASUDAKUTO

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5140590A (en) * 1974-10-01 1976-04-05 Tsutomu Yoshida TAIKABASUDAKUTO

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02144845A (en) * 1988-11-26 1990-06-04 Furukawa Battery Co Ltd:The Battery container
JPH06278260A (en) * 1993-03-29 1994-10-04 Japan Vilene Co Ltd Skin material for car interior, material for car interior and manufacture of them

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