JPS59131414A - Delustering mold for synthetic resin molded piece - Google Patents
Delustering mold for synthetic resin molded pieceInfo
- Publication number
- JPS59131414A JPS59131414A JP20954783A JP20954783A JPS59131414A JP S59131414 A JPS59131414 A JP S59131414A JP 20954783 A JP20954783 A JP 20954783A JP 20954783 A JP20954783 A JP 20954783A JP S59131414 A JPS59131414 A JP S59131414A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- delustering
- roughness
- finer
- resin molded
- 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
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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/42—Moulds or cores; Details thereof or accessories therefor characterised by the shape of the moulding surface, e.g. ribs or grooves
- B29C33/424—Moulding surfaces provided with means for marking or patterning
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、合成樹脂成形品表面の艶消しを良好に行なえ
る金型に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a mold that can satisfactorily matt the surface of a synthetic resin molded product.
熱可塑性樹脂成形品に艶消し加工を行なう方法は種々あ
るが、一般的には艶消し加工を施した金型によって行な
われる。金型に艶消し加工を行なう方法には、（１）化
学薬品（酸やアルカリ）を用いてエツチングする方法。There are various methods of matting a thermoplastic resin molded product, but generally it is carried out using a mold that has been subjected to matting. Methods for matting molds include (1) etching using chemicals (acid or alkali);
（２）サンドブラストにより物理的に表面を粗にする方
法。（３）艶消しメッキを行なう方法。あるいはこれら
を併用する方法等があった。熱可塑性樹脂成形品に艶消
し加工を行なう目的は、一般には光線を乱反射すること
によって成形品化ソフト感をもたせることである。しか
しながら前記方法は単独では艶消し効果が小さいために
併用する必要があり艶消し加工金型作製の工程を煩雑に
する欠点があった。またこれらの方法では所望の粗度の
金型を得ることも非常に困難なことであった。(2) A method of physically roughening the surface by sandblasting. (3) A method of performing matte plating. Alternatively, there was a method of using these together. The purpose of matting a thermoplastic resin molded product is generally to give the molded product a soft feel by diffusely reflecting light rays. However, since the above-mentioned method alone has a small matting effect, it is necessary to use them in combination, which has the disadvantage of complicating the process of producing a matting mold. Furthermore, it is also very difficult to obtain a mold with a desired roughness using these methods.
そこで本発明者らは熱可塑性樹脂成形品用金型の艶消し
手段について鋭意検討を行なった結果、ある粗度の凹凸
自体にさらに小さな凹凸を付すことが成形品の艶消しに
効果があることを見い出し、本発明に至った。Therefore, the inventors of the present invention have conducted intensive studies on matting means for molds for thermoplastic resin molded products, and have found that adding even smaller irregularities to the irregularities of a certain roughness itself is effective in matting the molded product. They discovered this and arrived at the present invention.
本発明は、金型表面に溶射加工を施こすことによって達
成することができる。***は金属やセラミック等の材料
を酸素−アセチレン（または水素）媚によってノズルか
ら溶融噴射し相手素地（ふつうは金属）をコーティング
するものである。艶消し加工金型を熔射によって作製す
れば、非常に粗な表面を得ること−が容易であるだけで
な（微視的にはある凹凸自体にさらに小さい凹凸が付さ
れた複雑な形状の多孔質表面を作ることができる。この
多孔質表面の金型を用いたところ非常に艶消し効果が大
きい熱可塑性樹脂成形品を得ることが可能になった。The present invention can be achieved by thermal spraying the surface of the mold. Explosive blasting involves melting and spraying materials such as metals or ceramics from a nozzle using oxygen-acetylene (or hydrogen) to coat the other substrate (usually metal). If a matte processing mold is made by spraying, it is not only easy to obtain a very rough surface (microscopically, it is possible to create a complex shape in which even smaller irregularities are added to the irregularities themselves). A porous surface can be created.Using a mold with this porous surface, it has become possible to obtain a thermoplastic resin molded product with a very large matte effect.
上記表面が複雑な多孔質になっている金型を使用すると
艶消し効果が大きいのは、成形品表面に単に粗な凹凸を
忠実に賦形できるだけでなく微視的な凹凸も良好に付す
ことができるためと考えられる。すなわち、溶融した熱
可塑性樹脂は金型に導入され金型表面の粗な凹凸によっ
て賦形されるが、冷却されることによって収縮する際に
該金型の微視的な凹凸によって半溶融状態の成形品が剪
断を受け、成形品表面が引掻かれるような作用を受ける
ために艶消し効果か大きくなる七考えられる。従って、
単に粗な凹凸を与えた金型では艶消し効果は非常に小さ
く、この溶射加工金型のように複雑な形状の多孔質表面
であることが重要である。The reason why the matting effect is so great when using a mold with a complex porous surface is that it is not only possible to faithfully form rough unevenness on the surface of the molded product, but also to create good microscopic unevenness. This is thought to be due to the ability to That is, a molten thermoplastic resin is introduced into a mold and is shaped by the rough irregularities on the mold surface, but when it shrinks by cooling, the semi-molten resin changes due to the microscopic irregularities of the mold. It is thought that the matting effect increases because the molded product is subjected to shearing and the surface of the molded product is subjected to a scratching action. Therefore,
If the mold is simply provided with rough irregularities, the matting effect will be very small, so it is important to have a porous surface with a complex shape like this thermal spray mold.
それでは、艶消し金型の表面がどの程度の粗度であるこ
とが艶消し効果の点から適当であるか実験的に確認した
。この実験は、市販のサンドペーパーを熱可塑性樹脂シ
ートに重ねこれを２枚の鏡面板に挾みホットプレスを行
い冷却後サンドペーパーを引き剥すことによってシート
表面１こ艶消し加工を行なったものである。この実験よ
り、サンドペーパー粗度によって艶消し効果はかなり異
なり＃６００相当のものが良好であることが判明した。We then experimentally confirmed what level of roughness the surface of the matte mold should have in terms of the matte effect. In this experiment, commercially available sandpaper was layered on a thermoplastic resin sheet, which was sandwiched between two mirrored plates, hot pressed, and after cooling, the sandpaper was peeled off to make one part of the sheet surface matte. be. This experiment revealed that the matting effect varies considerably depending on the roughness of the sandpaper, and that sandpaper equivalent to #600 is good.
＃６００より粗（なるにしたがって艶消し効果は小さく
なり＃６０以下ではサンドペーパーに樹脂が接着し引き
剥すことが不可能であった。同様に＃６００より細か（
なるにしたがって艶消し効果は小さくなった。本発明の
金型は、射出成形用、圧縮成形用、ブロー成形用、真空
あるいは圧空成形用等に用いられる。Coarser than #600 (as the matte effect becomes smaller, and below #60, the resin adheres to the sandpaper and it was impossible to remove it.Similarly, finer than #600, the matte effect becomes smaller,
The matte effect became smaller as the temperature increased. The mold of the present invention is used for injection molding, compression molding, blow molding, vacuum or pressure molding, and the like.
本発明の効果をさらに明らかにするため実施例にて説明
する。EXAMPLES In order to further clarify the effects of the present invention, Examples will be described.
実施例１
モリブデン・ニッケル・アルミニウム混合粉末材料（第
一メテコ社製＃４４７）を酸素−アセチレンガス熾で溶
融し、平板状成形品を得るための射出成形用金型表面Ｉ
こノズルより噴射し艶消し加工を行なった。表面の粗度
は市販サンドペーパーの＃６００相当のものであった。Example 1 Injection mold surface I for obtaining a flat plate-shaped molded product by melting a molybdenum-nickel-aluminum mixed powder material (#447 manufactured by Daiichi Metco Co., Ltd.) with oxygen-acetylene gas.
It was sprayed from this nozzle to create a matte finish. The surface roughness was equivalent to #600 commercially available sandpaper.
この艶消し加工金型を射出成形機にセットし樹脂温度２
５０°Ｃ射出圧８０ ＫＰ ／ ｃｒ／ｌにてポリプロ
ピ１／：／ （ＭＦＲメルトフローレイジオ：１．０）
ヲ射出した。この射出成形品の艶消し状態を第１表に示
した。This matte processing mold is set in the injection molding machine and the resin temperature is 2.
Polypropylene 1/:/ (MFR melt flow ratio: 1.0) at 50°C injection pressure 80 KP/cr/l
I ejaculated. Table 1 shows the matte state of this injection molded product.
参考例１
実施例１と同形状の金型表面に＃１５０サンドブラスト
を行ないさらにエツチング後艶消しメッキを行なったも
のを用いた以外は実施例１と同−材料、同一条件にて作
製した成形品の艶消し状態を第１表１こ示す。なおこの
エツチング後の金型の粗度は＃６００相当であった。Reference Example 1 A molded product produced using the same materials and conditions as Example 1, except that a mold having the same shape as Example 1 was subjected to #150 sandblasting, etched and then matte plated. Table 1 shows the matte state. The roughness of the mold after this etching was equivalent to #600.
実施例２
カップ状成形品を得るための真空成形用金型表面に実施
例１と同一の材料を熔射し艶消し加工を行なった。１．
５ ｍ厚さのＡＢＳシートを真空成形用クランプに保持
した状態で炉内温度２４０℃、加熱時間８０ＳｅＣで溶
融し直後に常温の上記金型にて真空成形した。このカッ
プ状成形品の艶消し状態を第１表に示す。Example 2 The same material as in Example 1 was sprayed onto the surface of a vacuum molding die for obtaining a cup-shaped molded product to give it a matte finish. 1.
A 5 m thick ABS sheet was held in a vacuum forming clamp and melted at a furnace temperature of 240° C. for a heating time of 80 SeC, and immediately thereafter vacuum formed in the above-mentioned mold at room temperature. Table 1 shows the matte state of this cup-shaped molded product.
実施例３
平板状成形品を得るための圧縮成形用金型表面にアルミ
ナ・チタニャ粉末材料（第一メテコ社製＃１３１）
を熔射し艶消し加工を行なった。Example 3 Alumina titania powder material (#131 manufactured by Daiichi Metco Co., Ltd.) was applied to the surface of a compression mold to obtain a flat plate-shaped molded product.
A matte finish was applied by melting.
この金型にポリエチレンのペレットを充填し金型温度２
００°Ｃ型締（カ１００沖／ｄにて圧縮成形した。冷却
後成形品を取り出しその成形品の艶消し状態を第１表に
示す。なお金型の粗度は＃１５０相当であった。This mold is filled with polyethylene pellets and the mold temperature is 2.
Compression molding was performed at 00°C mold clamping (100°C/d). After cooling, the molded product was taken out and the matte state of the molded product is shown in Table 1. The roughness of the mold was equivalent to #150. .
第１表 各成形品の表面状態
上述のように本発明の艶消し加工金型は、従来のエツチ
ング、サンドブラスト、艶消しメッキ等を行なって単純
な凹凸を付した金型に比べて成形品の艶消し効果が大き
く、また、凹凸の粗度が粗くても従来のそれより粗度か
細い従来の金型と同等の艶消し効果を有する。Table 1 Surface condition of each molded product As mentioned above, the matte processing mold of the present invention has a higher surface quality than the conventional mold that has been simply roughened by etching, sandblasting, matte plating, etc. It has a great matting effect, and even if the roughness of the unevenness is rough, it has the same matting effect as a conventional mold, which has a finer roughness than the conventional mold.
特許出願人patent applicant
Claims (1)
な凹凸を形成した合成樹脂成形品艶消し加工金型。 λ 金型表面の粗度がサンドペーパー粗度＃１５０相当
より細かい特許請求の範囲第１項記載の合成樹脂成形品
艶消し加工金型。 ３ 金型表面の粗度がサンドペーパー粗度＃６００相当
である特許請求の範囲第２項記載の合成樹脂成形品艶消
し加工金型。[Scope of Claims] 1. A matting mold for a synthetic resin molded product, which has unevenness for matting on the surface of the mold, and finer unevenness is formed on the unevenness. λ The matte processing mold for a synthetic resin molded product according to claim 1, wherein the roughness of the mold surface is finer than that equivalent to sandpaper roughness #150. 3. A matte processing mold for a synthetic resin molded product according to claim 2, wherein the surface roughness of the mold is equivalent to sandpaper roughness #600.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20954783A JPS59131414A (en) | 1983-11-08 | 1983-11-08 | Delustering mold for synthetic resin molded piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20954783A JPS59131414A (en) | 1983-11-08 | 1983-11-08 | Delustering mold for synthetic resin molded piece |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP54104406A Division JPS5910888B2 (en) | 1979-08-16 | 1979-08-16 | Manufacturing method for matte processing molds for synthetic resin molded products |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59131414A true JPS59131414A (en) | 1984-07-28 |
Family
ID=16574612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20954783A Pending JPS59131414A (en) | 1983-11-08 | 1983-11-08 | Delustering mold for synthetic resin molded piece |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59131414A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62182708U (en) * | 1986-05-14 | 1987-11-19 | ||
| EP0256803A2 (en) * | 1986-08-07 | 1988-02-24 | Praxair S.T. Technology, Inc. | Embossing tools, their formation and use |
| JP2017185753A (en) * | 2016-04-08 | 2017-10-12 | トヨタ紡織株式会社 | Manufacturing method of molding tool, molding tool and manufacturing method of vehicle interior material |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5212619B1 (en) * | 1970-11-05 | 1977-04-08 |
-
1983
- 1983-11-08 JP JP20954783A patent/JPS59131414A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5212619B1 (en) * | 1970-11-05 | 1977-04-08 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62182708U (en) * | 1986-05-14 | 1987-11-19 | ||
| JPH0344489Y2 (en) * | 1986-05-14 | 1991-09-19 | ||
| EP0256803A2 (en) * | 1986-08-07 | 1988-02-24 | Praxair S.T. Technology, Inc. | Embossing tools, their formation and use |
| JP2017185753A (en) * | 2016-04-08 | 2017-10-12 | トヨタ紡織株式会社 | Manufacturing method of molding tool, molding tool and manufacturing method of vehicle interior material |
| US10954601B2 (en) | 2016-04-08 | 2021-03-23 | Toyota Boshoku Kabushiki Kaisha | Method of producing die, die, and interior component of vehicle |
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