JP2013180526A - レーザー光を用いた接合方法 - Google Patents
レーザー光を用いた接合方法 Download PDFInfo
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- JP2013180526A JP2013180526A JP2012047055A JP2012047055A JP2013180526A JP 2013180526 A JP2013180526 A JP 2013180526A JP 2012047055 A JP2012047055 A JP 2012047055A JP 2012047055 A JP2012047055 A JP 2012047055A JP 2013180526 A JP2013180526 A JP 2013180526A
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- laser
- bonding
- intermediate member
- joining
- laser beam
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Abstract
【解決手段】第1及び第2部材10,20を接合するためのレーザー接合用中間部材40と第2部材20とを重ねてからレーザー光を照射してレーザー接合用中間部材40を加熱して第2部材20に接合する第1レーザー光照射を行った後、第1部材10をレーザー接合用中間部材40に重ねてから意匠層30へ向けて意匠層30の溶融及び分解温度を超えない所定温度となるまで意匠層30を加熱するためのレーザー光を照射する第2レーザー光照射を行うことにより、意匠層30の熱によってレーザー接合用中間部材40を加熱して第1及び第2部材10,20を接合する。
【選択図】図1
Description
上記第1部材に、該第1部材の表側に意匠が現れるようにレーザー光非透過性の意匠層を設ける工程と、
上記第1及び第2部材を接合するためのレーザー接合用中間部材と上記第2部材とを重ねてからレーザー光を照射して上記レーザー接合用中間部材を加熱して上記第2部材に接合する第1レーザー光照射を行った後、上記第1部材を上記レーザー接合用中間部材に重ねてから上記意匠層へ向けて該意匠層の溶融及び分解温度を超えない所定温度となるまで該意匠層を加熱するためのレーザー光を照射する第2レーザー光照射を行うことにより、該意匠層の熱によって上記レーザー接合用中間部材を加熱して上記第1及び第2部材を接合する工程とを備えていることを特徴とするものである。
上記レーザー接合用中間部材にレーザー光吸収剤を含有させることを特徴とするものである。
上記レーザー接合用中間部材が有する基材の上記第2部材側の面に設けた接合層にレーザー光吸収剤を含有させることを特徴とするものである。
図1は、本発明の実施形態1にかかるレーザー光を用いた接合方法によって接合された接合品1を示すものである。この接合品1は、例えば、化粧品用ケース、住設用又は電器製品用外装部材等として用いられるものであり、該外装部材の表側を構成する透光部材(第1部材)10と、裏側を構成する裏側部材(第2部材)20とを重ね合わせてなるものであり、透光部材10の裏面には透光部材10の一部を構成する意匠層30が設けられている。透光部材10と裏側部材20とはレーザー接合用中間部材40によって接合されている。
図5〜7は、本発明の実施形態2にかかるものである。この実施形態2では、レーザー接合用中間部材40を1層構造としている点で上記実施形態1と異なっており、透光部材10及び裏側部材20は実施形態1と同じである。
(実施例1)
第1部材
第1部材10は、厚み2mmの透明ポリカーボネート製の板材とした。意匠層30は、ポリカーボネート板の裏面に、UVスクリーンインクの黒(十条ケミカル株式会社製:レイキュアGA4100)をスクリーン印刷により印刷した後、紫外線を照射して硬化させることによって得た。意匠層30の厚みは10μmであり、意匠層30の形成範囲は、60mm×60mmである。透光部材10における意匠層30を有する部分のレーザー光の透過率は、4%であった。
第1部材20は、厚み2mmのステンレス鋼(SUS304)製の板材とした。
アクリル系エラストマー(株式会社クラレ製LA2250)50重量部と、粘着付与剤(荒川化学工業株式会社製SE−A−115)50重量部とをトルエン100重量部に投入した後、攪拌溶解して粘着剤組成物溶液を作製した。
離型処理済みフィルム上のレーザー接合用中間部材40を、50mm×50mmの四角形枠状となるようにカッターを用いて切り抜いた(図8(b)参照)。枠の幅は1mmである。
第1レーザー光照射の後、ガラス板を取り除くとともに、離型処理積みフィルムをレーザー接合用中間部材40から剥がした。その後、意匠層30がレーザー接合用中間部材40に接するように第2部材20を置き、第2部材20をレーザー接合用中間部材40に貼り付けた。
実施例2では、第1部材10及び第2部材は実施例1と同じである。
実施例2の第1部材10、第2部材20及びレーザー接合用中間部材40を用意し、第1レーザー光照射を行わずに接合した。すなわち、第1部材10、レーザー接合用中間部材40及び第2部材20を順に重ねた後、第1部材10の上にガラス板を重ねてクランプ圧をかけてからレーザー光照射を行った。
実施例1、実施例2及び比較例の接合品1を各50個用意した。
10 透光部材(第1部材)
20 裏側部材(第2部材)
30 意匠層
40 レーザー接合用中間部材
41 基材
42 表側接合層
43 裏側接合層
L レーザー光
Claims (4)
- 透光性を有する第1部材と、第2部材とをレーザー光を用いて接合する接合方法において、
上記第1部材に、該第1部材の表側に意匠が現れるようにレーザー光非透過性の意匠層を設ける工程と、
上記第1及び第2部材を接合するためのレーザー接合用中間部材と上記第2部材とを重ねてからレーザー光を照射して上記レーザー接合用中間部材を加熱して上記第2部材に接合する第1レーザー光照射を行った後、上記第1部材を上記レーザー接合用中間部材に重ねてから上記意匠層へ向けて該意匠層の溶融及び分解温度を超えない所定温度となるまで該意匠層を加熱するためのレーザー光を照射する第2レーザー光照射を行うことにより、該意匠層の熱によって上記レーザー接合用中間部材を加熱して上記第1及び第2部材を接合する工程とを備えていることを特徴とするレーザー光を用いた接合方法。 - 請求項1に記載のレーザー光を用いた接合方法において、
上記レーザー接合用中間部材にレーザー光吸収剤を含有させることを特徴とするレーザー光を用いた接合方法。 - 請求項2に記載のレーザー光を用いた接合方法において、
上記レーザー接合用中間部材が有する基材の上記第2部材側の面に設けた接合層にレーザー光吸収剤を含有させることを特徴とするレーザー光を用いた接合方法。 - 請求項1から3のいずれか1つに記載のレーザー光を用いた接合方法において、
上記レーザー接合用中間部材を上記第1及び第2部材の少なくとも一方に粘着させることを特徴とするレーザー光を用いた接合方法。
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JP2014217955A (ja) * | 2013-05-01 | 2014-11-20 | 早川ゴム株式会社 | レーザー光を用いた接合方法 |
JP2016064509A (ja) * | 2014-09-22 | 2016-04-28 | 早川ゴム株式会社 | レーザー光を用いた接合方法及び剥離方法 |
KR101630573B1 (ko) * | 2015-03-23 | 2016-06-14 | 한국광기술원 | 접합 장치 및 방법 |
JP2016168825A (ja) * | 2015-03-11 | 2016-09-23 | 早川ゴム株式会社 | レーザー接合用中間部材及び接合方法 |
JP2016215435A (ja) * | 2015-05-18 | 2016-12-22 | 早川ゴム株式会社 | レーザー接合用中間部材及び接合方法 |
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JP2020078919A (ja) * | 2018-11-14 | 2020-05-28 | 大日本印刷株式会社 | ハードコート基材接合体、及び、その製造方法 |
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