JPS6378718A - Manufacture of key top - Google Patents
Manufacture of key topInfo
- Publication number
- JPS6378718A JPS6378718A JP22530986A JP22530986A JPS6378718A JP S6378718 A JPS6378718 A JP S6378718A JP 22530986 A JP22530986 A JP 22530986A JP 22530986 A JP22530986 A JP 22530986A JP S6378718 A JPS6378718 A JP S6378718A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- key top
- molding
- key
- sublimation
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 238000000859 sublimation Methods 0.000 claims abstract description 22
- 230000008022 sublimation Effects 0.000 claims abstract description 22
- 238000001746 injection moulding Methods 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000002347 injection Methods 0.000 claims abstract description 9
- 239000007924 injection Substances 0.000 claims abstract description 9
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 7
- 239000000057 synthetic resin Substances 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 239000002904 solvent Substances 0.000 claims abstract description 4
- 239000000975 dye Substances 0.000 claims description 6
- 239000011230 binding agent Substances 0.000 claims description 3
- 239000000981 basic dye Substances 0.000 claims description 2
- 239000012461 cellulose resin Substances 0.000 claims description 2
- 239000000986 disperse dye Substances 0.000 claims description 2
- 235000010985 glycerol esters of wood rosin Nutrition 0.000 claims description 2
- 238000004898 kneading Methods 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 229920001225 polyester resin Polymers 0.000 claims description 2
- 239000004645 polyester resin Substances 0.000 claims description 2
- 230000032683 aging Effects 0.000 claims 1
- 238000004140 cleaning Methods 0.000 claims 1
- 238000007639 printing Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 3
- 238000000465 moulding Methods 0.000 abstract 5
- 239000000976 ink Substances 0.000 description 17
- 229920005989 resin Polymers 0.000 description 7
- 239000011347 resin Substances 0.000 description 7
- -1 polypropylene Polymers 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920001707 polybutylene terephthalate Polymers 0.000 description 2
- 229920006267 polyester film Polymers 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 239000000020 Nitrocellulose Substances 0.000 description 1
- 229920001207 Noryl Polymers 0.000 description 1
- 229930182556 Polyacetal Natural products 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 239000004734 Polyphenylene sulfide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 229920003180 amino resin Polymers 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000007646 gravure printing Methods 0.000 description 1
- 229920001220 nitrocellulos Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920006380 polyphenylene oxide Polymers 0.000 description 1
- 229920000069 polyphenylene sulfide Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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
- B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
-
- 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
- B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
- B29C2045/0079—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping applying a coating or covering
-
- 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
- B29L2031/00—Other particular articles
- B29L2031/46—Knobs or handles, push-buttons, grips
- B29L2031/466—Keypads, keytops
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Manufacture Of Switches (AREA)
Abstract
Description
【発明の詳細な説明】 発明の目的 ［産業上の利用分野１ 本発明は、キートップの製造方法の改良に関する。[Detailed description of the invention] purpose of invention [Industrial application field 1 The present invention relates to an improvement in a method for manufacturing key tops.
［従来の技術］
型中、ＯＡ機器、工作機器などのキーボードを構成する
キートップに文字や記号を印刷するひとつの方法として
、合成樹脂を射出成形して、キートップ形状の成形品を
得、成形品のキー頂部に昇華性インキで文字や記号を印
刷した転写シートを重ね合わせ、加熱加圧して転写する
方法がある。[Prior art] One method of printing characters and symbols on the key tops that make up the keyboards of molds, OA equipment, machine tools, etc. is to injection mold synthetic resin to obtain a molded product in the shape of a key top. There is a method of overlapping a transfer sheet with characters and symbols printed with sublimation ink on the top of the key of a molded product, and applying heat and pressure to transfer the characters and symbols.
この方法によると、射出成形金型のほかにキートップの
形状に応じた専用の転写用押し型が必要な上に、転写作
業は手間がかかり生産性が低いので、コストが高い。According to this method, in addition to an injection mold, a special transfer die is required depending on the shape of the key top, and the transfer operation is time-consuming and productivity is low, so the cost is high.
［発明が解決しようとする問題点１
本発明の目的は、キートップの形状を有する成形品の射
出成形に引き続いて、昇華転写を行なうことにより、転
写用の押し型の必要をなくすとともに、生産性を向上さ
せ、コストを低順にしＪこキートップの製造方法を提供
することにある。[Problem to be Solved by the Invention 1] The purpose of the present invention is to eliminate the need for a stamping die for transfer by performing sublimation transfer subsequent to injection molding of a molded product having the shape of a key top, and to reduce production costs. The purpose of the present invention is to provide a method for manufacturing a J key top with improved performance and lower cost.
発明の構成
［問題点を解決するための手段］
本発明のキートップの製造方法は、第１図に示すように
、オ型２Ａおよび加熱手段（図示してない）をそなえた
メ型２Ｂからなる射出成形金型内に合成樹脂を射出成形
してキートップの形状を有する成形品３を得、この成形
品を金型のオ型２Ａ上に置いたままメ型２Ｂを開き、つ
いで第２図に示すような、基材フィルム１１上に昇華性
インキのパターン印刷１２をした転写シート１を、第３
図に示すように、上記の成形品３のキー頂部に置いてメ
型２Ｂを閉じ、加圧するとともにメ型の温度を高め加熱
して昇華転写を行なった後、成形品を射出成形金型から
取り出して、溶剤で洗浄することにより、基材フィルム
１１を剥離除去し、第４図に示すような、昇華性インキ
のパターン印刷１２を有するキートップ４を１ｑること
からなる。Structure of the Invention [Means for Solving the Problems] As shown in FIG. 1, the key top manufacturing method of the present invention starts from an O-type 2A and a M-type 2B equipped with heating means (not shown). A molded article 3 having the shape of a key top is obtained by injection molding a synthetic resin into an injection molding mold, and while this molded article is placed on the O-mold 2A of the mold, the M-mold 2B is opened, and then the second As shown in the figure, a transfer sheet 1 on which a sublimation ink pattern 12 is printed on a base film 11 is transferred to a third
As shown in the figure, the mold 2B is placed on top of the key of the above-mentioned molded product 3, the mold 2B is closed, and the temperature of the mold is increased and heated to perform sublimation transfer, and then the molded product is removed from the injection mold. By taking it out and washing it with a solvent, the base film 11 is peeled off and the key top 4 having a sublimation ink pattern 12 as shown in FIG. 4 is obtained.
転写シートは、基本的には基材フィルム上に昇華性イン
キのパターン印刷があれば足りるが、必要に応じて両者
の間に剥離層を設ける。Basically, it is sufficient for the transfer sheet to have a sublimation ink pattern printed on the base film, but if necessary, a release layer is provided between the two.
基材フィルムの材料は、ポリエステル、ポリプロピレン
などの比較的剥離性のよいプラスチックがよい。 剥離
層を設けるならば、上質紙、コート紙、アート紙、金属
蒸着紙などの紙類およびアルミニウム箔なども使用でき
る。The material for the base film is preferably a plastic with relatively good releasability, such as polyester or polypropylene. If a release layer is provided, papers such as high-quality paper, coated paper, art paper, metal-deposited paper, and aluminum foil can also be used.
昇華性インキのパターン印刷は、昇華性インキをグラビ
ア印刷など任意の方法で基材フィルム上または剥離層上
に印刷することによって行なう。Pattern printing of the sublimable ink is performed by printing the sublimable ink on the base film or on the release layer by any method such as gravure printing.
昇華性インキとしては、分散染料、油溶性染料、塩基性
染料および含金染料などからえらんだ染料を、バインダ
ーと混練して調製したものを使用する。 バインダーは
、合成樹脂を主成分とするものであって、フェノール、
エポキシ、アミン樹脂などの熱硬化性樹脂、およびエス
テルガム、ポリエステル系樹脂、ポリオレフィン、ポリ
ウレタン、ポリアミドなどの熱可塑性樹脂、あるいはセ
ルロース系樹脂などの中から、適当なものをえらんで使
用する。The sublimable ink used is one prepared by kneading a dye selected from disperse dyes, oil-soluble dyes, basic dyes, metal-containing dyes, etc. with a binder. The binder is mainly composed of synthetic resin, including phenol,
An appropriate resin is selected from among thermosetting resins such as epoxy and amine resins, thermoplastic resins such as ester gum, polyester resins, polyolefins, polyurethanes, and polyamides, and cellulose resins.
射出成形してキートップをつくる合成樹脂としては、ポ
リブチレンテレフタレート、ＡＢＳ、ポリカーボネート
、アクリル樹脂、ポリアセタール、ノリル樹脂、ポリフ
ェニレンオキサイド、ポリフェニレンサルファイドなど
の熱可塑性樹脂が好適である。 その他、フェノール、
エポキシ・アミノ樹脂などの熱硬化性樹脂も使用できる
。As the synthetic resin for making the key tops by injection molding, thermoplastic resins such as polybutylene terephthalate, ABS, polycarbonate, acrylic resin, polyacetal, noryl resin, polyphenylene oxide, and polyphenylene sulfide are suitable. Others, phenol,
Thermosetting resins such as epoxy and amino resins can also be used.
［作 用］
射出成形されたキートップの形状を有する成形品は、金
型を開くとオ型の上にのったまま、メ型が分離する。
そこで転写シートをキー頂部に印刷パターンが位置する
ようにおき、金型を閉じると、メ型で転写シートを成形
品のキー頂部に向って加圧することができる。 メ型の
温度を高めることによって昇華転写が行なわれるので、
転写用の押し型が不要であり、転写のために成形品を射
出成形金型から取り外してくる必要がなく、生産性が高
い。[Function] When the injection molded product has the shape of a key top, when the mold is opened, the key top mold is separated while remaining on the top mold.
Therefore, when the transfer sheet is placed so that the printed pattern is located on the top of the key and the mold is closed, the transfer sheet can be pressed by the mold toward the top of the key of the molded product. Sublimation transfer is performed by increasing the temperature of the mold, so
There is no need for a press die for transfer, and there is no need to remove the molded product from the injection mold for transfer, resulting in high productivity.
昇華性インキとして、従来は転写時の高温加熱による変
形を避けるために低温昇華性インキしか使用できなかっ
たが、本発明では金型で規制していて変形のおそれがな
いから高温昇華性インキも使用でき、インキの選択の幅
が広がった。 高温昇華性インキを使用する利点は、得
られるキートップ表面の耐摩耗性などの物性が向上する
ことである。Conventionally, only low-temperature sublimation inks could be used to avoid deformation due to high-temperature heating during transfer, but in the present invention, high-temperature sublimation inks can also be used because they are regulated by a mold and there is no risk of deformation. can be used, expanding the range of ink choices. The advantage of using high-temperature sublimation ink is that the physical properties of the resulting key top surface, such as abrasion resistance, are improved.
■実施例】
ニトロセルロース系樹脂の剥離層を設けた厚さ２５μの
ポリエステルフィルム「ルミラーＴ」（東し）上に、高
温昇華性インキｒＤＹｓｏキートップインキ」 （諸星
インキ）を用いて、キーの文字や記号をグラビア印刷し
た転写シートを用意した。■Example] A high-temperature sublimation ink, ``rDYso Key Top Ink'' (Moroboshi Ink), was used to print keys on a 25μ thick polyester film ``Lumirror T'' (Toshi) with a release layer of nitrocellulose resin. A transfer sheet with gravure printed characters and symbols was prepared.
ポリブチレンテレフタレート樹脂「ジュラネツクス３，
３００」 （ポリプラスチック）を成形樹脂温度２５０
℃、射出成形金型温度１００℃で射出成形して、キート
ップの形状を有する成形品を得た。Polybutylene terephthalate resin “DURANEX 3,
300" (polyplastic) molded at a resin temperature of 250
By injection molding at an injection mold temperature of 100°C, a molded article having the shape of a key top was obtained.
メ型を開き、成形品をオ型にのせたまま上記の転写シー
トをキートップの形状を有する成形品のキー頂部に置い
てメ型を閉じ、メ型の温度１５０°Ｃに高め、圧力６０
Ｋｇ／ｃｆｆｌの条件で加圧して、昇華転写を行なった
。Open the main mold, place the above transfer sheet on top of the key of the molded product having the shape of a key top with the molded product placed on the main mold, close the main mold, raise the temperature of the main mold to 150°C, and apply pressure to 60°C.
Sublimation transfer was performed under pressure of Kg/cffl.
成形品を金型から取り出してＭＥＫ溶剤で洗浄し、ポリ
エステルフィルムを剥離して、キートップを得た。The molded product was taken out from the mold, washed with MEK solvent, and the polyester film was peeled off to obtain a key top.
及服匁四Σ
本発明のキートップの製造方法によれば、キートップの
形状を有する成形品の射出成形に引き続いて昇華転写を
行なうので、転写用の押し型が不要であり、生産性が向
上し、コストが低順となる。According to the key top manufacturing method of the present invention, sublimation transfer is performed subsequent to injection molding of a molded product having the shape of a key top, so a press die for transfer is not required, and productivity is improved. The cost will be lower.
高温昇華性インキの使用も可能なので、このインキを使
用すると、得られるキー１〜ツブ表面の耐摩耗性などの
物性が向上する。Since it is also possible to use high-temperature sublimation ink, the use of this ink improves the physical properties such as abrasion resistance of the surfaces of the key 1 to the knob obtained.
第１図は、本発明のキートップの製造方法の最初の工程
を説明するための断面図であって、合成樹脂を射出成形
してキートップの形状を有する成形品を得たところを示
す。
第２図は、本発明のキートップの製造方法に使用する転
写シートの基本的な構成を示す、模式的な断面図である
。
第３図は、本発明のキートップの製造方法の工程を説明
するための断面図であって、転写シートを成形品のキー
頂部に置いて金型を閉じ、加圧加熱して昇華転写を行な
っているところを示す。
第４図は、第１図および第３図の方法で製造したキー］
−ツブの断面図である。
１・・・転写シート
１１・・・基材フィルム
１２・・・昇華性インキのパターン印刷２Ａ・・・射出
成形金型のオ型
２Ｂ・・・射出成形金型のメ型
３・・・キートップの形状を有する成形品４・・・キー
トップ
特許出願人 大日本印刷株式会社
代理人 弁理士 須 賀 総 夫
第１図FIG. 1 is a sectional view for explaining the first step of the key top manufacturing method of the present invention, showing a molded product having the shape of a key top obtained by injection molding a synthetic resin. FIG. 2 is a schematic cross-sectional view showing the basic structure of a transfer sheet used in the key top manufacturing method of the present invention. FIG. 3 is a cross-sectional view for explaining the steps of the key top manufacturing method of the present invention, in which a transfer sheet is placed on the key top of the molded product, the mold is closed, and sublimation transfer is performed by applying pressure and heating. Show what is being done. Figure 4 shows a key manufactured by the method shown in Figures 1 and 3]
- A cross-sectional view of the whelk. 1... Transfer sheet 11... Base film 12... Pattern printing of sublimation ink 2A... O mold 2B of injection molding mold... Mold 3 of injection molding mold... Key Molded product having a top shape 4...Key top Patent applicant Dai Nippon Printing Co., Ltd. Representative Patent attorney Souo Suga Figure 1
Claims (2)
樹脂を射出成形してキートップの形状を有する成形品を
得、この成形品を金型のオ型上に置いたままメ型を開き
、基材フィルム上に昇華性インキのパターン印刷をした
転写シートを上記成形品のキー頂部に置いてメ型を閉じ
、加圧するとともにメ型の温度を高め加熱して昇華転写
を行なつた後、成形品を射出成形金型から取り出して溶
剤で洗浄することにより、昇華性インキのパターン印刷
を有するキートップを得ることからなるキートップの製
造方法。(1) A molded product having the shape of a key top is obtained by injection molding a synthetic resin in an injection molding die equipped with a heating means, and the molded product is placed on the O-mold of the mold. Open the mold, place the transfer sheet with sublimation ink pattern printed on the base film on top of the key of the molded product, close the mold, apply pressure and raise the temperature of the mold to perform sublimation transfer. A method for producing a key top, which comprises removing the molded product from the injection mold after aging and cleaning it with a solvent to obtain a key top having a pattern printed with sublimable ink.
基性染料および含金染料などからえらんだ染料を、エス
テルガム、ポリエステル系樹脂およびセルロース系樹脂
からえらんだバインダーと混練して調製したものを使用
する特許請求の範囲第１項に記載のキートップの製造方
法。(2) A sublimation ink prepared by kneading a dye selected from disperse dyes, oil-soluble dyes, basic dyes, metal-containing dyes, etc. with a binder selected from ester gum, polyester resin, and cellulose resin. A method for manufacturing a key top according to claim 1, using the method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22530986A JPS6378718A (en) | 1986-09-24 | 1986-09-24 | Manufacture of key top |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22530986A JPS6378718A (en) | 1986-09-24 | 1986-09-24 | Manufacture of key top |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6378718A true JPS6378718A (en) | 1988-04-08 |
Family
ID=16827329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22530986A Pending JPS6378718A (en) | 1986-09-24 | 1986-09-24 | Manufacture of key top |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6378718A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0995570A1 (en) * | 1998-10-13 | 2000-04-26 | Bush Industries, Inc. | Method for producing an injection moulded article decorated by colouring |
| EP1177875A1 (en) * | 2000-08-02 | 2002-02-06 | MZE Engineering GmbH | Process for the production of decorated injection molded parts |
| EP1340606A1 (en) * | 2002-02-22 | 2003-09-03 | Mitsuboshi Belting Ltd. | Method of applying information on a surface of a layer exposed in an autmotive passenger compartment and a layer made according to the method |
| US7204667B2 (en) | 2000-12-18 | 2007-04-17 | Nippon Steel Corporation | High strength bolted structure and method of securing nut and torque-shear type high strength bolt and joining method using same |
-
1986
- 1986-09-24 JP JP22530986A patent/JPS6378718A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0995570A1 (en) * | 1998-10-13 | 2000-04-26 | Bush Industries, Inc. | Method for producing an injection moulded article decorated by colouring |
| US6572805B1 (en) | 1998-10-13 | 2003-06-03 | Bush Industries, Inc. | Method for producing a color-decorated injection molding |
| EP1177875A1 (en) * | 2000-08-02 | 2002-02-06 | MZE Engineering GmbH | Process for the production of decorated injection molded parts |
| US7204667B2 (en) | 2000-12-18 | 2007-04-17 | Nippon Steel Corporation | High strength bolted structure and method of securing nut and torque-shear type high strength bolt and joining method using same |
| EP1340606A1 (en) * | 2002-02-22 | 2003-09-03 | Mitsuboshi Belting Ltd. | Method of applying information on a surface of a layer exposed in an autmotive passenger compartment and a layer made according to the method |
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