JP2005139445A - レーザー光透過性着色樹脂組成物、及びそれを用いたレーザー溶着方法 - Google Patents
レーザー光透過性着色樹脂組成物、及びそれを用いたレーザー溶着方法 Download PDFInfo
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- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
- B29C65/1629—Laser beams characterised by the way of heating the interface
- B29C65/1635—Laser beams characterised by the way of heating the interface at least passing through one of the parts to be joined, i.e. laser transmission welding
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- B29C65/16—Laser beams
- B29C65/1629—Laser beams characterised by the way of heating the interface
- B29C65/1654—Laser beams characterised by the way of heating the interface scanning at least one of the parts to be joined
- B29C65/1658—Laser beams characterised by the way of heating the interface scanning at least one of the parts to be joined scanning once, e.g. contour laser welding
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- B29C66/7332—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the optical properties of the material of the parts to be joined, e.g. fluorescence, phosphorescence at least one of the parts to be joined being coloured
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- B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C66/00—General aspects of processes or apparatus for joining preformed parts
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- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/836—Moving relative to and tangentially to the parts to be joined, e.g. transversely to the displacement of the parts to be joined, e.g. using a X-Y table
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- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
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- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
- B29C65/1603—Laser beams characterised by the type of electromagnetic radiation
- B29C65/1612—Infrared [IR] radiation, e.g. by infrared lasers
- B29C65/1616—Near infrared radiation [NIR], e.g. by YAG lasers
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- B29C65/16—Laser beams
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Abstract
着色熱可塑性合成樹脂部材のレーザー溶着を行う前段階の熱処理工程においてその樹脂部材の色調の退色を生じず、着色剤の昇華を実質上生じない状態でレーザー溶着を行うことが可能な高い透過性をもつレーザー光透過性着色熱可塑性樹脂組成物を提供する。
【解決手段】
レーザー光透過性着色樹脂組成物は下記式(1)で表されるアントラキノン系酸性染料を含有する。
【化1】
[式(1)中、-R1は水素、水酸基、アミノ基又はアルキルアミド基を示し、-R2及び-R3は水素、アルキル基、ハロゲン、アルコキシ基又は-SO3M(Mは水素、アルカリ金属、アンモニウムを示す)を示し-R4〜-R8は水素、アルキル基、アシル基、アシルアミド基、アシル-N-アルキルアミド基、ハロゲン、アルコキシ基又は-SO3M(Mは前記と同じ)であって、-R2〜-R8の少なくともひとつが該-SO3Mである]。式(2)であってもよい。
【化2】
Description
エネルギー量x(J/mm)が下記式(II)
C.I. Acid Blue 113:C.I. 26360で示される青色ジスアゾ酸性染料
C.I. Acid Green 20:C.I. 20495 で示される緑色ジスアゾ酸性染料
C.I. Solvent Violet 13:C.I. 60725 で示されるアントラキノン緑色油溶性染料
高速液体クロマトグラフ法により測定した各化合物の純度は以下の通りである。
化合物例1−2 99.4%
化合物例1−3 98.9%
化合物例1−6 99.8%
化合物例1−9 98.7%
45%繊維強化ポリアミド6樹脂(GF−PA6樹脂)・・・・400g(宇部興産社製 商品番号:1015GU9)
製造例1の着色剤・・・・0.80g
45%繊維強化ポリアミド6樹脂・・・・400g(宇部興産社製 商品番号:1015GU9)
比較製造例3の着色剤・・・・0.80g
ポリブチレンテレフタレート樹脂(PBT樹脂)・・・・400g(三菱エンジニアリングプラスチックス社製 商品番号:5008AS)
製造例1の着色剤・・・・0.80g
ポリブチレンテレフタレート樹脂・・・・400g(三菱エンジニアリングプラスチックス社製 商品番号:5008AS)
製造例3の着色剤・・・・0.80g
ポリブチレンテレフタレート樹脂・・・・400g(三菱エンジニアリングプラスチックス社製 商品番号:5008AS)
製造例5の着色剤・・・・0.80g
ポリブチレンテレフタレート樹脂・・・・400g(三菱エンジニアリングプラスチックス社製 商品番号:5008AS)
製造例4の着色剤・・・・2.40g
ポリブチレンテレフタレート樹脂・・・・400g(三菱エンジニアリングプラスチックス社製 商品番号:5008AS)
製造例6の着色剤・・・・0.80g
ポリブチレンテレフタレート樹脂・・・・1000g(三菱エンジニアリングプラスチックス社製 商品番号:5008AS)
製造例7の着色剤・・・・120g
上記黒色ペレット・・・・20g
ポリブチレンテレフタレート樹脂・・・・400g(三菱エンジニアリングプラスチックス社製 商品番号:5008AS)
比較製造例1の着色剤・・・・0.80g
ポリブチレンテレフタレート樹脂・・・・400g(三菱エンジニアリングプラスチックス社製 商品番号:5008AS)
比較製造例2の着色剤・・・・0.80g
ポリブチレンテレフタレート樹脂・・・・400g(三菱エンジニアリングプラスチックス社製 商品番号:5008AS)
比較製造例4の着色剤・・・・2.40g
30%繊維強化ポリプロピレン樹脂(GF−PP樹脂)・・・・400g(日本ポリケム社製 商品番号:HG30U)
製造例3の着色剤・・・・0.80g
30%繊維強化ポリプロピレン樹脂・・・・400g(日本ポリケム社製 商品番号:HG30U)
製造例2の着色剤・・・・1.20g
30%繊維強化ポリプロピレン樹脂・・・・400g(日本ポリケム社製 商品番号:HG30U)
比較製造例1の着色剤・・・・0.80g
実施例1〜9及び比較例1〜5で得たレーザー光透過性着色樹脂組成物、並びに同様に成形した未着色の樹脂試験片について、下記方法により物性評価を行った。その結果を、表2〜4に示す。
分光光度計(日本分光社製 商品番号:V−570型)に各試験片をセットし試験片:図1の試験片1における厚みが1.5mmの部分を、波長範囲λ=400〜1200nmの範囲で透過率を測定した。表2〜4には、各試験片についての波長940nmの半導体レーザー光の透過率を示した。
上記実施例1〜9及び比較例1〜5の各々の射出成形において、配合物の混合物により通常ショットを行った後、残りの混合物をその時のシリンダー温度で15分間滞留させ、その後で射出成形を行って試験片を得た。
試験片に白色のPET(ポリブチレンテレフタレート)フィルムを貼りつけ、それをオーブンに入れて160℃で3時間放置し、その後、試験片からPETフィルムを剥して観察し易いように無色透明のOHP(オーバーヘッドプロジェクタ)用シートに貼りつけた。
ポリアミド6樹脂を用いたレーザー光吸収性試験片(レーザー光吸収材)は以下のようにして作製した。
45%繊維強化ポリアミド6樹脂・・・・400g(宇部興産社製 商品番号:1015GU9)
カーボンブラック・・・・0.40g
ポリブチレンテレフタレート樹脂・・・・400g(三菱エンジニアリングプラスチックス社製 商品番号:5008AS)
カーボンブラック・・・・2.00g
30%繊維強化ポリプロピレン樹脂・・・・400g(日本ポリケム社製 商品番号:HG30U)
カーボンブラック・・・・0.80g
前記(4)で得られた溶着物に対し、JISK7113−1995に準じ、引張試験機(島津製作所社製AG−50kNE)にて、試験片1側とレーザー光吸収性試験片2側との縦方向(図1における試験片1及び2を引離す方向)に試験速度10mm/minで引張試験を行って、引張溶着強度を測定した。
Claims (11)
- 下記式(1)
または下記式(2)
で表されるアントラキノン系酸性染料を含有していることを特徴とするレーザー光透過性着色樹脂組成物。 - 前記式(1)のアントラキノン系酸性染料の純度が90%以上であることを特徴とする請求項1に記載のレーザー光透過性着色樹脂組成物。
- 前記アントラキノン系酸性染料の最大吸収波長が、580nm〜630nmの範囲内であることを特徴とする請求項1又は2に記載のレーザー光透過性着色樹脂組成物。
- 熱可塑性樹脂を含有していることを特徴とする請求項1〜3のいずれかに記載のレーザー光透過性着色樹脂組成物。
- 前記熱可塑性樹脂がポリエステル樹脂であることを特徴とする請求項4に記載のレーザー光透過性着色樹脂組成物。
- 前記ポリエステル樹脂が、テレフタル酸成分と、それ以外の二官能性カルボン酸0.5〜5モル%とを含んでなる共重合体であることを特徴とする請求項5に記載のレーザー光透過性着色樹脂組成物。
- 前記ポリエステル樹脂の主成分が、ポリブチレンテレフタレート樹脂であることを特徴とする請求項5又は6に記載のレーザー光透過性着色樹脂組成物。
- 前記アントラキノン系酸性染料と、黄色又は/及び赤色の染料とが混合されて黒色を呈している混合着色剤を含有することを特徴とする請求項1〜7のいずれかに記載のレーザー光透過性着色樹脂組成物。
- 請求項1〜8のいずれかに記載のレーザー光透過性着色樹脂組成物からなるレーザー光透過材と、レーザー光吸収材とを当接させ、レーザー光を前記レーザー光透過材に照射して、該レーザー光が該レーザー光透過材を透過し、該レーザー光吸収材に吸収されることによって、該レーザー光透過材と該レーザー光吸収材との当接部を溶着させることを特徴とするレーザー溶着方法。
- 前記レーザー光吸収材が、少なくともカーボンブラックを着色剤として含んでいるレーザー光吸収性着色樹脂組成物からなることを特徴とする請求項9に記載のレーザー溶着方法。
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008001112A (ja) * | 2005-09-21 | 2008-01-10 | Orient Chem Ind Ltd | レーザー溶着体 |
JP2008031393A (ja) * | 2005-09-01 | 2008-02-14 | Orient Chem Ind Ltd | レーザー光透過性着色樹脂組成物及びその関連技術 |
JP2008105430A (ja) * | 2005-09-21 | 2008-05-08 | Orient Chem Ind Ltd | レーザー溶着体 |
WO2016068101A1 (ja) * | 2014-10-27 | 2016-05-06 | 宇部興産株式会社 | ポリアミド組成物及びそれからなる成形品 |
-
2004
- 2004-10-15 JP JP2004301505A patent/JP2005139445A/ja active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008031393A (ja) * | 2005-09-01 | 2008-02-14 | Orient Chem Ind Ltd | レーザー光透過性着色樹脂組成物及びその関連技術 |
JP2008001112A (ja) * | 2005-09-21 | 2008-01-10 | Orient Chem Ind Ltd | レーザー溶着体 |
JP2008105430A (ja) * | 2005-09-21 | 2008-05-08 | Orient Chem Ind Ltd | レーザー溶着体 |
JP4574666B2 (ja) * | 2005-09-21 | 2010-11-04 | オリヱント化学工業株式会社 | レーザー溶着体 |
WO2016068101A1 (ja) * | 2014-10-27 | 2016-05-06 | 宇部興産株式会社 | ポリアミド組成物及びそれからなる成形品 |
US10465060B2 (en) | 2014-10-27 | 2019-11-05 | Ube Industries, Ltd. | Polyamide composition and molded article produced from the composition |
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