JPS6224260B2 - - Google Patents
Info
- Publication number
- JPS6224260B2 JPS6224260B2 JP58140855A JP14085583A JPS6224260B2 JP S6224260 B2 JPS6224260 B2 JP S6224260B2 JP 58140855 A JP58140855 A JP 58140855A JP 14085583 A JP14085583 A JP 14085583A JP S6224260 B2 JPS6224260 B2 JP S6224260B2
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- patterns
- letters
- character
- upper mold
- 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
- 239000004744 fabric Substances 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 13
- 229920005989 resin Polymers 0.000 claims description 10
- 239000011347 resin Substances 0.000 claims description 10
- 229920003002 synthetic resin Polymers 0.000 claims description 8
- 239000000057 synthetic resin Substances 0.000 claims description 8
- 239000004033 plastic Substances 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 claims description 2
- 239000004677 Nylon Substances 0.000 description 5
- 229920001778 nylon Polymers 0.000 description 5
- 238000000465 moulding Methods 0.000 description 3
- 229920001169 thermoplastic Polymers 0.000 description 3
- 239000004416 thermosoftening plastic Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920005749 polyurethane resin Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/58—Blowing means
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/06905—Using combined techniques for making the preform
- B29C49/0691—Using combined techniques for making the preform using sheet like material, e.g. sheet blow-moulding from joined sheets
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
本発明は、上型（金型）の下面に目的とする文
字、模様を逆うつしに刻印して凹刻部を形成し、
この上型と下型間に文字シートを上に、生地シー
トを下にして重ね合わせて高周波電流により文
字、模様の輪郭を接着すると共に文字、模様部分
を上型の凹刻部内に空気圧により膨張させて立体
的な膨出文字、模様を成形する方法に関するもの
である。[Detailed Description of the Invention] The present invention involves stamping desired characters and patterns on the lower surface of an upper mold (mold) in an inverted manner to form an engraved part,
The letter sheet is stacked on top and the fabric sheet is placed on the bottom between the upper and lower molds, and the outlines of the letters and patterns are adhered using high-frequency current, and the letters and patterns are expanded into the engraved parts of the upper mold using air pressure. This invention relates to a method for forming three-dimensional bulging characters and patterns.
熱可塑性合成樹脂シート二枚を用いて立体的な
文字、模様を成形する方法の一つとして、上型側
に凹刻部を形成し、高周波電流を利用して文字、
模様の輪郭を接着する際の空気圧により上側のシ
ートを上型の凹刻部内に塑性変形させる方法（特
公昭49−27421）が公知である。 One method of molding three-dimensional letters and patterns using two sheets of thermoplastic synthetic resin is to form indentations on the upper mold side and use high-frequency current to form letters and patterns.
A method is known (Japanese Patent Publication No. 49-27421) in which the upper sheet is plastically deformed into the engraved portion of the upper die by air pressure when bonding the outline of the pattern.
上記方法は、誘電体損失の大きい合成樹脂シー
ト例えばポリ塩化ビニル、ポリ塩化ビニリデンシ
ート等に対しては適用しやすいが、かばんの素材
として多く使用されているナイロン系樹脂生地シ
ートの場合には、文字シート側に誘電体損失の大
きな合成樹脂シートを選択すると、熱接合が十分
でなかつたり、この熱接合を十分に行なうために
電流を長く流すと、文字シート側が早く溶解して
奇麗な輪郭や文字、模様が得られないという欠点
があつた。これらの原因は、二枚のシート間の誘
電体損失の差が大きいことに起因している。 The above method is easy to apply to synthetic resin sheets with large dielectric loss, such as polyvinyl chloride and polyvinylidene chloride sheets, but in the case of nylon resin fabric sheets, which are often used as materials for bags, If a synthetic resin sheet with large dielectric loss is selected for the character sheet side, the thermal bonding may not be sufficient, and if a current is passed for a long time to achieve sufficient thermal bonding, the character sheet side will melt quickly, resulting in beautiful outlines and The drawback was that characters and patterns could not be obtained. These causes are due to the large difference in dielectric loss between the two sheets.
本発明は斯かる点から、誘電体損失の差の大き
い二枚の合成樹脂シート間においても短時間に確
実な熱接合を行なうことの出来る熱可塑性合成樹
脂シートを用いて立体的な膨出文字、模様を成形
する方法を提案するのが目的である。 From this point of view, the present invention creates three-dimensional bulging letters using a thermoplastic synthetic resin sheet that can perform reliable thermal bonding in a short time even between two synthetic resin sheets with a large difference in dielectric loss. The purpose is to propose a method for forming patterns.
以下に本発明の構成を詳記すると、その構成要
旨は上型の下面に目的とする文字、模様を逆うつ
しに刻印して成る凹刻部を形成し、この上型と下
型間に文字シートを上に、生地シートを下にして
重ね合わせて高周波電流により文字、模様の輪郭
部分を接着することによつて前記高周波電流の印
加による文字シートと生地シート間の空気の熱膨
張作用による内圧作用により文字シートの文字、
模様部分を上型の凹刻部内に膨張させて立体的な
膨出文字、模様を文字シート面に成形する方法に
おいて、文字シートの下面又は生地シートの上面
にあらかじめ溶触樹脂をコーテイングしておく熱
可塑性合成樹脂シートを用いて立体的な膨出文
字、模様を成形する方法であつて、溶触樹脂が誘
電体損失及び二枚のシート間に発生した熱により
溶解し、熱接合面において二枚のシート間の誘電
体損失の差を補ない、確実に接合するものであ
る。 The structure of the present invention will be described in detail below.The gist of the structure is to form an engraved part on the lower surface of the upper mold with desired characters and patterns engraved upside down, and between the upper mold and the lower mold the characters By placing the sheets on top and the fabric sheet on the bottom and gluing the outlines of the letters and patterns using high-frequency current, the internal pressure due to the thermal expansion effect of the air between the letter sheet and the fabric sheet is created by applying the high-frequency current. Due to the action, the characters on the character sheet,
In the method of forming three-dimensional bulging characters and patterns on the surface of a character sheet by expanding the pattern part into the indented part of the upper mold, heat is applied to coat the bottom surface of the character sheet or the top surface of the fabric sheet with molten resin in advance. This is a method of molding three-dimensional bulging letters and patterns using plastic synthetic resin sheets, in which the molten resin melts due to dielectric loss and heat generated between two sheets, and the two sheets are bonded together at the thermally bonded surface. It compensates for the difference in dielectric loss between sheets and ensures reliable bonding.
第１，２図は本発明方法の一実施例を示し、１
はナイロン系の生地シート、２は文字シートにし
て、その材質はポリ塩化ビニルである。３は文字
シート２の下面であつて、ナイロン生地１と対向
する面にコーテイングした溶触樹脂としてのポリ
ウレタン系樹脂である。なお、このコーテイング
方法としては実施例の場合はグラビヤロールコー
テイングを採用しているが、他の方法でもよい。
次に、実施例は文字シート２側にポリウレタン系
樹脂をコーテイングしているが、ナイロン生地１
側の表面にコーテイングしてもよい。次に、溶触
樹脂としてはその他にビニール系等が考えられ
る。 1 and 2 show an embodiment of the method of the present invention, 1
2 is a nylon fabric sheet, and 2 is a character sheet made of polyvinyl chloride. 3 is a polyurethane resin as a melting resin coated on the lower surface of the character sheet 2, which is the surface facing the nylon fabric 1. Note that although gravure roll coating is employed in the embodiment as this coating method, other methods may be used.
Next, in the example, the character sheet 2 side is coated with polyurethane resin, but the nylon fabric 1
The side surface may be coated. Next, as the melt-contact resin, vinyl-based resins and the like can be considered.
４は下面に文字、模様を逆うつしにした凹刻部
５を形成し、輪郭接合部６、溶断刃７から成る上
型（金型）である。 Reference numeral 4 denotes an upper mold (mold) which has an indented part 5 with letters and patterns reversed on its lower surface, and is composed of a contour joint part 6 and a fusing blade 7.
上記のような構成の二枚のシートを上型を用い
て行なう成形方法を示したのが第２図であつて、
上型４を下型側に下降させて生地シート１と文字
シート２とを上型４と下型間に挟圧し、各接合部
６において高周波電流を電極間に流し、この接合
部６において熱接合を行なうと共にこの熱影響に
より生地シート１と文字シート２間の空気の熱膨
張作用による内圧で文字シート２を上型の凹刻部
５内に塑性変形させ、溶断刃７により文字シート
２の外輪部を切り取り、文字及び模様の成形を終
了するものである。 Figure 2 shows a method of forming two sheets having the above structure using an upper die.
The upper mold 4 is lowered to the lower mold side, the fabric sheet 1 and the character sheet 2 are pressed between the upper mold 4 and the lower mold, and a high frequency current is passed between the electrodes at each joint 6 to generate heat at this joint 6. At the same time as joining, the character sheet 2 is plastically deformed into the engraved part 5 of the upper mold by the internal pressure caused by the thermal expansion effect of the air between the dough sheet 1 and the character sheet 2, and the character sheet 2 is deformed by the fusing blade 7. The outer ring portion is cut out and the forming of the letters and patterns is completed.
本発明は以上のように、生地シートと文字シー
ト間にあらかじめ溶触樹脂を介在させ、誘電体損
失に基づいてシート間に発生した熱と誘電体損失
により溶触樹脂を溶触し、この作用で生地シート
と文字シート間における誘電体損失に基づく熱接
合の不足分を補うので誘電体損失の差の大きい二
枚のシートを利用して文字、模様の膨出成形を行
なう際に、接合部分における接合不良の問題は生
じない。よつて、文字シート側に比較して誘電体
損失の少ないナイロン系生地を用いたかばんに対
しても、本発明によると熱可塑性合成樹脂シート
を用いて接着強度の高い、立体的で奇麗な膨出文
字、模様の成形ができる。又、この成形時間（放
電時間）も短かくて済むので、作業能率も向上す
る。 As described above, in the present invention, the melted resin is interposed between the fabric sheet and the character sheet in advance, and the melted resin is melted by the heat generated between the sheets based on the dielectric loss and the dielectric loss, and this action causes the fabric sheet to This function compensates for the lack of thermal bonding due to dielectric loss between the letter sheets and character sheets, so when forming bulges of letters and patterns using two sheets with large dielectric loss differences, there is no possibility of poor bonding at the joint. No problem arises. Therefore, according to the present invention, even for bags made of nylon fabric with less dielectric loss than the character sheet side, the thermoplastic synthetic resin sheet can be used to create a three-dimensional and beautiful bulge with high adhesive strength. Characters and patterns can be formed. Furthermore, since the molding time (discharge time) can be shortened, work efficiency is also improved.
第１図は本発明方法の実施に供される生地シー
ト、文字シート及び上型の断面図、第２図は上型
を用いて膨出文字を成形した状態の断面図であ
る。
１……生地シート、２……文字シート、３……
溶触樹脂、４……上型。
FIG. 1 is a cross-sectional view of a fabric sheet, a character sheet, and an upper mold used in carrying out the method of the present invention, and FIG. 2 is a cross-sectional view of a state in which bulged characters are formed using the upper mold. 1...Dough sheet, 2...Character sheet, 3...
Molten resin, 4... upper mold.
Claims (1)
しに刻印して成る凹刻部を形成し、この上型と下
型間に文字シートを上に、生地シートを下にして
重ね合わせて高周波電流により文字、模様の輪郭
部分を接着することによつて前記高周波電流の印
加による文字シートと生地シート間の空気の熱膨
脹作用による内圧作用により文字シートの文字、
模様部分を上型の凹刻部内に膨脹させて立体的な
膨出文字、模様を文字シート面に成形する方法に
おいて、文字シートの下面又は生地シートの上面
にあらかじめ溶触樹脂をコーテイングしておく熱
可塑性合成樹脂シートを用いて立体的な膨出文
字、模様を成形する方法。1 Form an intaglio part by stamping the desired characters and patterns on the lower surface of the upper mold in an inverted manner, and stack them between the upper mold and the lower mold with the character sheet facing up and the fabric sheet facing down. By bonding the outlines of the letters and patterns using a high-frequency current, the letters and patterns on the letter sheet are bonded together by the internal pressure caused by the thermal expansion of the air between the letter sheet and the fabric sheet due to the application of the high-frequency current.
In the method of forming three-dimensional bulging characters and patterns on the surface of a character sheet by expanding the pattern part into the indented part of the upper die, heat is applied to coat the bottom surface of the character sheet or the top surface of the fabric sheet with molten resin in advance. A method of forming three-dimensional bulging letters and patterns using a plastic synthetic resin sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58140855A JPS6032635A (en) | 1983-08-01 | 1983-08-01 | Method of forming three-dimensionally bulged character, pattern or the like by using thermoplastic synthetic resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58140855A JPS6032635A (en) | 1983-08-01 | 1983-08-01 | Method of forming three-dimensionally bulged character, pattern or the like by using thermoplastic synthetic resin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6032635A JPS6032635A (en) | 1985-02-19 |
| JPS6224260B2 true JPS6224260B2 (en) | 1987-05-27 |
Family
ID=15278304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58140855A Granted JPS6032635A (en) | 1983-08-01 | 1983-08-01 | Method of forming three-dimensionally bulged character, pattern or the like by using thermoplastic synthetic resin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6032635A (en) |
-
1983
- 1983-08-01 JP JP58140855A patent/JPS6032635A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6032635A (en) | 1985-02-19 |
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