JPS603684B2 - How to manufacture illustrated record discs - Google Patents
How to manufacture illustrated record discsInfo
- Publication number
- JPS603684B2 JPS603684B2 JP16559679A JP16559679A JPS603684B2 JP S603684 B2 JPS603684 B2 JP S603684B2 JP 16559679 A JP16559679 A JP 16559679A JP 16559679 A JP16559679 A JP 16559679A JP S603684 B2 JPS603684 B2 JP S603684B2
- Authority
- JP
- Japan
- Prior art keywords
- surface material
- printing paper
- mold
- thermoplastic resin
- record
- 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
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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
-
- 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
- B29L2017/00—Carriers for sound or information
- B29L2017/001—Carriers of records containing fine grooves or impressions, e.g. disc records for needle playback, cylinder records
- B29L2017/003—Records or discs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
本発明は絵入りレコード盤の製造方法に係り、特に音質
を向上させた絵入りレコード盤を製造することを目的と
する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a pictorial record disc, and in particular, an object of the present invention is to manufacture a pictorial record disc with improved sound quality.
従来、この絵入りレコ−ド盤を製造する方法としてはし
コード盤プレス金型の上下金型の内側に各々スタンパー
を配置し、各金型の中心軸に透明又は半透明な熱可塑性
樹脂シートよりなる表面材と書画、写真等を印刷した印
刷紙をこれらの順序で挿入し、次に上下金型に挿入した
印刷紙と印刷紙との間に熱可塑性樹脂を予め可熱ゲル化
してなる芯村を挿入し、金型を加熱し、閉じ更に加熱冷
却して製造する方法がある。Conventionally, the method for manufacturing illustrated record discs is to place stampers inside the upper and lower molds of a chopstick press mold, and to attach a transparent or translucent thermoplastic resin sheet to the central axis of each mold. Insert the surface material and the printing paper on which calligraphy, drawings, photographs, etc. There is a manufacturing method in which a mold is inserted, the mold is heated, the mold is closed, and the mold is further heated and cooled.
しかしてこの方法によれば熱可塑性樹脂シートよりなる
表面材に音溝が形成されるわけであるが、成形時表面材
は殆んどフローせず熱可塑性樹脂を予め加熱ゲル化して
なる芯オのみが放射状にフローするため音溝形状は不完
全なものとなりその結果し、たって音質の劣る絵入りレ
コード盤が製造される。本発明は上述の欠点を除去する
為になされたものでプレス金型の下金型中心軸に透明又
は半透明な熱可塑性樹脂からなる加熱ゲル化した表面材
と印刷紙と透明又は半透明な熱可塑性樹脂からなる加熱
ゲル化した表面材を順次挿入した状態で金型を加熱し、
閉じ、更に加熱圧搾−冷却するものである。However, according to this method, sound grooves are formed in the surface material made of a thermoplastic resin sheet, but the surface material hardly flows during molding, and the core material is made by heating and gelling the thermoplastic resin in advance. Since the sound flows radially, the shape of the sound groove becomes incomplete, and as a result, illustrated records with inferior sound quality are manufactured. The present invention was made in order to eliminate the above-mentioned drawbacks, and the lower mold center axis of a press mold is provided with a heat-gelled surface material made of a transparent or translucent thermoplastic resin, a printing paper, and a transparent or translucent material. The mold is heated with heat-gelled surface materials made of thermoplastic resin inserted one after another.
It is closed, then heat-squeezed and cooled.
以下図面と共に実施例について説明する。第１図及び第
２図はそのレコードプレス機及び製造工程を示すもので
第１図において１は上金型、２は下金型で互に枢着され
ると共にその内側には各々スタンバー３，４が配置され
、下金型２には中心軸５が設けられている。実際には上
金型１、下金型２の内部に水蒸気及び冷却水を通す遍路
があり、両型とも加熱冷却されるように構成されている
。ここで下金型２の中心軸５に第２図に示す透明又は半
透明な熱可塑性樹脂よりなる予め加熱ゲル化した第１の
表面材６を、次に第１の桶強材７を、次に書画、写真等
を印刷した印刷紙８を、次に第２の補強材９を、次に透
明又は半透明な熱可塑性樹脂よりなる予め加熱ゲル化し
た第２の表面材１０を順次挿入する。ここで上述の補強
材は後述の大きな引張力に充分耐えうる程度の強度を有
する厚紙等からなり、印刷された書画等のじやまになら
ない程度の大きさになされる。Examples will be described below with reference to the drawings. Figures 1 and 2 show the record press machine and its manufacturing process. In Figure 1, 1 is an upper mold, and 2 is a lower mold, which are pivotally connected to each other, and inside each are a stub bar 3, 4 is arranged, and the lower mold 2 is provided with a central axis 5. Actually, there is a circuit through which water vapor and cooling water pass inside the upper mold 1 and the lower mold 2, and both molds are configured to be heated and cooled. Here, on the central axis 5 of the lower mold 2, a first surface material 6 made of transparent or translucent thermoplastic resin, which has been heated and gelled in advance, as shown in FIG. Next, a printed paper 8 with calligraphy, photographs, etc. printed on it, a second reinforcing material 9, and a second surface material 10 made of transparent or translucent thermoplastic resin that has been heated and gelled in advance are sequentially inserted. do. Here, the above-mentioned reinforcing material is made of cardboard or the like having sufficient strength to withstand the large tensile force described later, and is made of a size that does not interfere with the printed calligraphy or drawings.
ここでは補強材として厚さ０．３〜０．４柳程度の直径
２０〜３仇岬程度のケント紙又は胴援用紙を用いた。Here, as a reinforcing material, Kent paper or body support paper with a thickness of about 0.3 to 0.4 willow and a diameter of about 20 to 3 yen was used.
又直径は２９仇奴程度にして図形等を印刷したものを用
いてもよい。この状態で上下金型１，２を加熱し金型を
閉じ更に加熱し圧搾すると表面材６，１０が下金型の中
心軸５を中心に放射状にフローすることによって良好な
音溝が形成される。ここで上述の圧搾により表面材がフ
ローするさし、に印刷紙に大きな張力が生じて、印刷紙
が引きさげる場合があるが、上述の如く厚紙等からなる
補強材により中心部が補強されているので印刷紙８は引
裂けることがない。その後、金型を閉じた状態で冷却し
て表面材、補強材及び印刷紙を一体化させ絵入りレコー
ド盤を製造する。なお上述の実施例においては、表面材
として、塩化ビニルー酢酸ビニル共重合樹脂の重合度４
５０〜５５０のものを１０碇郡、プチル錫メルカブト１
〜２部、ェポキシ化大豆油１〜２部及びステアリン酸バ
リウム０．２〜０．４部を混合し押出機にて加熱、混練
、ゲル化してタブレット状に押出したものを用し、た。It is also possible to use one with a diameter of about 29 mm and printed with figures. In this state, when the upper and lower molds 1 and 2 are heated, the molds are closed, and further heated and compressed, the surface materials 6 and 10 flow radially around the central axis 5 of the lower mold, forming a good sound groove. Ru. Here, due to the above-mentioned squeezing, a large tension is generated in the printing paper at the point where the surface material flows, and the printing paper may be pulled down. Therefore, the printing paper 8 will not be torn. Thereafter, the mold is cooled in a closed state to integrate the surface material, reinforcing material, and printing paper to produce an illustrated record. In the above-mentioned examples, the surface material was a vinyl chloride-vinyl acetate copolymer resin with a polymerization degree of 4.
50 to 550 items, 10 anchorages, 1 petitil tin merkabuto
2 parts of epoxidized soybean oil, 1 to 2 parts of epoxidized soybean oil, and 0.2 to 0.4 parts of barium stearate were mixed, heated, kneaded, gelled, and extruded into tablets using an extruder.
又上述の説明では補強材７，９と印刷紙８とを分離した
状態で中心軸５に挿入するむね説明したがこれら補強材
と印刷紙とを予め接着、落着等により一体化したものを
表面材６と１０との間に介挿して製造してもよい。又補
強材は必ずしも印刷紙８の両側に挿入しなければならな
いものではなく、片面側のみでよいことはもち論である
。要は印刷紙が引きさげることのない様に補強すればよ
い。従って印刷紙の強度が充分であれば上述の補強材は
不要である。例えば印刷紙として０．２肌〜０．４５肋
程度の厚さのケント紙又は胴張用紙を用いたところ他に
補強材を用いなくても前述の引きさげ事故は生じなかっ
た。叙上の如く、本発明によれば音溝が形成されるとこ
ろの表面材に従来のような熱可塑性樹脂シートを使用せ
ずに予め加熱ゲル化した透明又は半透明な熱可塑性樹脂
を使用するので表面材は下金型中心軸を中心にフローし
、音溝を形成するので、従来の絵入りレコード盤よりも
Ｓ／Ｎ比のよい音質の優れた良好な絵入りレコード盤を
製造出来る特徴を有する。Furthermore, in the above explanation, it was explained that the reinforcing materials 7 and 9 and the printed paper 8 are inserted into the central shaft 5 in a separated state, but the reinforcing materials and the printed paper are integrated in advance by gluing, settling, etc. It may be manufactured by being inserted between the materials 6 and 10. Furthermore, the reinforcing material does not necessarily have to be inserted on both sides of the printing paper 8, and it is of course only necessary to insert it on one side. The key is to reinforce the printing paper so that it does not pull down. Therefore, if the printing paper has sufficient strength, the above-mentioned reinforcing material is not necessary. For example, when Kent paper or bodywork paper with a thickness of about 0.2 to 0.45 ribs was used as the printing paper, the above-mentioned pulling accident did not occur even if no other reinforcing material was used. As described above, according to the present invention, a transparent or translucent thermoplastic resin that has been heated and gelled in advance is used for the surface material where the sound grooves are formed, instead of using a conventional thermoplastic resin sheet. Therefore, the surface material flows around the center axis of the lower mold, forming a sound groove, so it has the characteristic of producing high-quality pictorial records with better sound quality and a better S/N ratio than conventional pictorial records. .
第１図は本発明方法を実施するためのレコードプレス機
を示す斜視図、第２図はその製造工程を説明するための
説明図である。
１は上金型、２は下金型、３，４はスタンバー、５は下
金型の中心軸、６，１０は表面材、７，９は補強材、８
は印刷紙である。
第１図
第２図FIG. 1 is a perspective view showing a record press for carrying out the method of the present invention, and FIG. 2 is an explanatory diagram for explaining the manufacturing process thereof. 1 is an upper mold, 2 is a lower mold, 3 and 4 are stub bars, 5 is a central axis of the lower mold, 6 and 10 are surface materials, 7 and 9 are reinforcing materials, 8
is printed paper. Figure 1 Figure 2
Claims (1)
可塑性樹脂より成る加熱ゲル化した第１の表面材と、印
刷紙と、透明又は半透明な熱可塑性樹脂よりなる加熱ゲ
ル化した第２の表面材とをこれら順序で挿入し、プレス
金型を加熱し、閉じ、更に加熱圧搾し、次にプレス金型
を冷却し、上記表面材、及び印刷紙を一体化させ、絵入
りレコード盤を形成することを特徴とする絵入りレコー
ド盤の製造方法。1. A first heat-gelled surface material made of a transparent or translucent thermoplastic resin, a printing paper, and a heat-gelled second surface material made of a transparent or translucent thermoplastic resin are attached to the center axis of a record press mold. The above-mentioned surface material and the printing paper are inserted in this order, the press mold is heated, closed, further heat-pressed, the press mold is cooled, the above-mentioned surface material and the printing paper are integrated, and an illustrated record is produced. A method for manufacturing a pictorial record, characterized by forming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16559679A JPS603684B2 (en) | 1979-12-21 | 1979-12-21 | How to manufacture illustrated record discs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16559679A JPS603684B2 (en) | 1979-12-21 | 1979-12-21 | How to manufacture illustrated record discs |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56101611A JPS56101611A (en) | 1981-08-14 |
| JPS603684B2 true JPS603684B2 (en) | 1985-01-30 |
Family
ID=15815348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16559679A Expired JPS603684B2 (en) | 1979-12-21 | 1979-12-21 | How to manufacture illustrated record discs |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS603684B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61161894U (en) * | 1985-03-26 | 1986-10-07 | ||
| JPS61190258U (en) * | 1985-05-22 | 1986-11-27 |
-
1979
- 1979-12-21 JP JP16559679A patent/JPS603684B2/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61161894U (en) * | 1985-03-26 | 1986-10-07 | ||
| JPS61190258U (en) * | 1985-05-22 | 1986-11-27 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56101611A (en) | 1981-08-14 |
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