JP2004016966A - Flocking method - Google Patents

Flocking method Download PDF

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Publication number
JP2004016966A
JP2004016966A JP2002177034A JP2002177034A JP2004016966A JP 2004016966 A JP2004016966 A JP 2004016966A JP 2002177034 A JP2002177034 A JP 2002177034A JP 2002177034 A JP2002177034 A JP 2002177034A JP 2004016966 A JP2004016966 A JP 2004016966A
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JP
Japan
Prior art keywords
pile
sprayed
paint
coating material
spraying
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
Application number
JP2002177034A
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Japanese (ja)
Inventor
Hideharu Yamada
山田 秀春
Takashi Kita
北 崇
Kenji Kawazu
河津 健司
Hiroshi Nishikawa
西川 浩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NITSUSEN KK
Nissen Corp
Inoac Corp
Ohashi Chemical Industries Ltd
Toyota Motor Corp
Original Assignee
NITSUSEN KK
Inoue MTP KK
Nissen Corp
Inoac Corp
Ohashi Chemical Industries Ltd
Toyota Motor Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NITSUSEN KK, Inoue MTP KK, Nissen Corp, Inoac Corp, Ohashi Chemical Industries Ltd, Toyota Motor Corp filed Critical NITSUSEN KK
Priority to JP2002177034A priority Critical patent/JP2004016966A/en
Priority to PCT/JP2003/007680 priority patent/WO2003106052A1/en
Publication of JP2004016966A publication Critical patent/JP2004016966A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00Processes for applying liquids or other fluent materials
    • B05D1/02Processes for applying liquids or other fluent materials performed by spraying
    • B05D1/12Applying particulate materials
    • B05D1/14Flocking

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  • Application Of Or Painting With Fluid Materials (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a flocking method for obtaining a flocked article having a more excellent tactile impression by taking in consideration overall factors such as the size of a pile to be used, an adhesive coating material to be used, a pile spraying time, the amount of the pile to be sprayed and a pile spraying apparatus to be used. <P>SOLUTION: The one-component coating material containing urethane emulsion is sprayed onto a base material. Within 3 minutes after the coating material is sprayed, the pile having 0.3-0.8±0.1 d fineness and 0.3-0.6±0.1 mm length is sprayed onto the coating material-sprayed surface at 30-60 g/minute from an electrostatic spray gun in which the pressure of transport air is higher than the spray pressure. A water-based coating material is used as the one-component coating material and the thickness of the coating film of the coating material formed on the surface of the base material is set to be 20-30 μm. It is preferable that the pile has 10<SP>6</SP>-10<SP>9</SP>Ω/cm electric leakage-resistant value. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は、植毛方法に関する。
【0002】
【従来の技術】
従来、プラスチック等からなる基材に植毛処理を施して表面感触を向上させることが行われている。
【0003】
特開平10−305506号公報には、複合繊維より分割された太さ0.01dないし1dの極細短繊維の表面に電着処理膜が被覆されたフロック(パイル)が示され、前記フロックを用いて静電植毛することにより、高質感・高風合を有する植毛製品が得られると記載されている。
【0004】
また、特開平10−259353号公報には、植毛時に使用される接着剤として、水性エポキシ変性ウレタン樹脂または水性ポリエステルウレタン樹脂を主成分とする一液型の植毛接着水性塗料組成物が示され、前記一液型の植毛接着水性塗料組成物を用いて植毛された植毛製品は、絞り加工や折り曲げ加工等の成形加工時に植毛繊維が脱落することがないと記載されている。
【0005】
【発明が解決しようとする課題】
しかしながら、より良好な触感の植毛製品が要求されている。しかも、従来の植毛方法においては、パイルのサイズのみ、あるいは接着剤のみといった、個別的な検討がなされ、植毛方法全体に渡る総合的な観点からの検討が不足していた。
【0006】
本発明は、前記の点に鑑み、パイルのサイズのみならず、接着用塗料、パイルの吹き付けタイミング、吹き付け量、使用する吹き付け装置の条件等を含めた総合的な観点から検討し、より良好な触感が得られる植毛製品の植毛方法を提供することを目的とする。
【0007】
【課題を解決するための手段】
請求項1の発明は、ウレタンエマルジョンを含む一液塗料を基材に吹き付け、前記一液塗料の吹き付け後3分以内に、太さ0.3〜0.8dで管理幅が±0.1d、長さ0.3〜0.6mmで管理幅が±0.1mmのパイルを、搬送エア圧力が吹き付け圧力よりも大の静電散布ガンにより、30〜60g/分で前記一液塗料表面に吹き付けることを特徴とする植毛方法に係る。
【0008】
請求項2の発明は、請求項1において、一液塗料が水系であって、基材表面への吹き付けによって形成される塗膜の厚みが20〜30μm、パイルの電気漏洩抵抗値が10〜10Ω/cmであることを特徴とする。
【0009】
【発明の実施の形態】
本発明は、植毛対象であるプラスチック製等からなる基材に塗料を吹き付け、その後、前記塗料の表面にパイルを静電散布ガンで吹き付ける植毛方法において、前記塗料の種類、パイルのサイズ、静電散布ガンによるパイルの吹き付け条件等を総合的に検討して、それらを最適なものとした。以下、本発明を詳細に説明する。図1は本発明の植毛方法によって得られた植毛製品の一例の概略断面図であり、符号1は基材、2は前記基材1への塗料の吹き付けによって形成された塗膜、3はパイルである。
【0010】
本発明で使用される塗料は、ウレタンエマルジョンを含む一液塗料からなる。前記ウレタンエマルジョンを塗料に含ませることによって、その後におけるパイルの吹き付け時に前記パイルを塗料表面に確実に固着させることができる。
【0011】
また、前記ウレタンエマルジョンを含む一液塗料としては、水系(水性)のものが好ましい。溶剤系塗料よりも水系塗料の方が、塗料表面へパイルを吹き付ける際に、低い電圧で良好な植毛を行うことができる。
【0012】
さらに、前記ウレタンエマルジョンを含む一液塗料としては、形成される塗膜の物理的強度が、伸びについては500〜800%、より好ましくは500〜700%、引張強度については20〜40MPa(いずれもJIS−K−5400:90の塗料一般試験規格準拠)であるものを用いるのが好ましい。かかる物理的強度を有することによって、塗膜に固着されたパイルが、その後に脱落等を生じ難くなり、またパイル表面の感触、風合いが一層高くなる。
【0013】
本発明で使用されるウレタンエマルジョンを含む一液塗料の具体的な組成物として、特にアクリル樹脂成分及び塩素化ポリオレフィン樹脂成分の何れか一方又は両方とポリウレタン樹脂成分から構成され、混合比率が(アクリル樹脂成分及び塩素化ポリオレフィン樹脂成分の合計):(ポリウレタン樹脂成分)=98:2〜20:80のものを挙げることができる。さらに、前記ウレタンエマルジョンを含む一液塗料には、その他、分散剤、水性染料、消泡剤、PH調整剤等が適宜含有される。
【0014】
前記ウレタンエマルジョンを含む一液塗料は、スプレー装置によって基材表面に吹き付けられる。その際、前記基材表面に形成される塗膜の厚みを、20〜30μmとなるようにするのが好ましい。この塗膜厚みに設定することで、その後の植毛製品の加工や、使用時にパイルの脱落等を一層確実に防いで、良好な感触及び風合いを長期に渡って維持することができる。
【0015】
本発明で使用されるパイルは、太さ(繊度)0.3d〜0.8dで管理幅(バラツキ)が±0.1d、長さ0.3mm〜0.6mmで管理幅(バラツキ)が±0.1mmのものとされる。この範囲に管理されたパイルを用いることによって、植毛製品の感触及び風合いがセーム革に最も近い優れたものになり、しかも前記感触及び風合いが均一ものとなる。
【0016】
前記パイルの材質としては、天然、再生(半合成)又は合成繊維の何れでもよい。好ましいパイルの材質として、芳香族ポリアミド繊維(商品名ケブラー、ノーメックス、コーネックス等)、その他のポリアミド繊維(6−ナイロン、6−6ナイロン、4,6−ナイロン等)、レギュラーポリエステル繊維、塩基性染料可染型ポリエステル繊維、アクリル繊維、ビニロン繊維、再生セルロース繊維(レーヨン)、羊毛繊維、木綿繊維、麻繊維、ポリオレフィン繊維、コラーゲン繊維、セラミック繊維、カーボン繊維、チタン酸カリウム繊維等が挙げられる。それらの中で特に好適なものは、ポリエステル繊維と、ポリアミド繊維である。
【0017】
さらに、本発明で使用されるパイルは、電気漏洩抵抗値が10Ω/cm〜10Ω/cmのものが好ましい。この範囲の電気漏洩抵抗値のパイルを用いることにより、静電散布ガンでパイルを吹き付ける際に、パイルが凝集せずに適度に分散して吹き付けらけれ、植毛製品の感触及び風合いがより優れたものになる。
【0018】
また、本発明で使用される静電散布ガンは、パイルをエアの圧力で静電散布ガン内の荷電室まで搬送し、パイルを帯電させた後、エア圧でガンの吹き出し口から基材の塗料表面へ吹き付けることのできるもので、公知のものが適宜使用される。本発明では、前記静電散布ガンは、搬送エア圧力を吹き付け圧力よりも大に設定して使用される。これによって、パイルを途切れなくスムーズにかつ均一に吹き付けることができる。
【0019】
前記塗料吹き付け後、前記静電散布ガンによるパイルの吹き付けまでの時間は3分以内に設定される。前記塗料吹き付け後パイル吹き付けまでの時間は、前記基材表面に吹き付けられた塗料が完全に硬化せず、しかも基材表面の塗料がパイルの固着作用を充分に発揮し、さらには植毛製品の生産効率を考慮して設定された値である。特に、図2に示すコンベア式の植毛装置を用いる場合には、塗料塗布工程とパイル吹き付け工程が分離して別の工程となっているため、塗料塗布後パイル吹き付けまでの時間を管理する必要があり、前記塗料吹き付け後3分以内にパイルの吹き付けを行うことは、良好な感触及び風合いの植毛製品を生産効率よく得るのに重要である。
【0020】
さらにまた、前記パイルの吹き付けは、30g〜60g/分の量で行われる必要がある。この範囲の量でパイルを基材の塗料表面に吹き付けることにより、パイルの分散を適度なものにでき、しかもパイルを効率良く基材の塗料表面に吹き付けることができる。特に、前記コンベア式の植毛装置においては基材が塗料塗布工程から順次パイル吹き付け工程へ送られてくるため、植毛製品の生産効率の面からも単位時間当たりのパイルの吹き付け量の設定は重要である。
【0021】
以下実施例について説明する。本実施例で使用したウレタンエマルジョンを含む水系一液塗料は、ポリウレタンエマルジョン(商品名:バイヒドロールPR240、住化バイエルウレタン株式会社製)30重量部、アクリルエマルジョン(商品名:ボンコートEC−818、大日本インキ化学工業株式会社製)35重量部、塩素化ポリプロピレンエマルジョン(商品名:ハードレインEH−202、東洋化成工業株式会社製)35重量部、分散剤(商品名:ペンダット51、ダウコーニングアジア株式会社製)0.5重量部を混合したものからなる。このウレタンエマルジョンを含む水系一液塗料は、塗膜の伸びが150%、引張強度が25MPa(JIS−K−5400:90)である。
【0022】
また、本実施例で使用したパイルは、太さ0.3d×長さ0.3mmで管理幅が太さに対して±0.1d、長さに対して±0.1mm、電気漏洩抵抗値が10Ω/cm〜10Ω/cmのポリエチレンテレフタレート(PET)繊維からなるものと、太さ0.8d×長さ0.4mmで管理幅が太さに対して±0.1d、長さに対して±0.1mm、電気漏洩抵抗値が10Ω/cm〜10Ω/cmのポリアミド(PA)繊維からなるものと、太さ0.8d×長さ0.6mmで管理幅が太さに対して±0.1d、長さに対して±0.1mm、電気漏洩抵抗値が10Ω/cm〜10Ω/cmのポリアミド繊維からなるものとの3種類である。前記電気漏洩抵抗値の測定は、試料10gを円筒シリンダーに均一に押入し、次に絶縁計(スーパーメガオームテスター横川電気製、又はINSULATIONテスター東亜電気製)を用いて電気抵抗値(Ω)を測定することにより行った。
【0023】
まずABS製の基材表面を脱脂処理し、次に前記ウレタンエマルジョンを含む水系一液塗料を、スプレーガンで膜厚20μm〜30μmになるように基材表面に吹き付けた。その後3分以内に、前記基材の塗料表面にパイルを静電散布ガン(ノードソン株式会社製静電吹き付け塗装ガン)によって、30g/分〜60g/分の吹き付け量で吹き付けた。その際の電圧は50KV(5万ボルト)であり、基材の塗料表面はアースされている。また、前記静電散布ガンの搬送エア圧を4kg/cm、吹き付けエア圧を1kg/cmに設定し、前記搬送エア圧でパイルを静電散布ガン内の荷電室まで搬送し、パイルを帯電させた後に基材の塗料表面に静電散布ガンの吹き付けエア圧により吹き付けた。その後、80℃で10分間乾燥を行った。
【0024】
また、比較のため、本発明の範囲を外れるサイズのパイルを用い、その他の条件を実施例と同様にして基材に植毛を行い、比較例品を得た。前記実施例品及び比較例品に対して、a〜gの7人によって触感の判定を行った。a〜gの7人は植毛製品の感触及び風合いに関し熟知している人達である。表1にその結果を示す。なお、No.1〜No.3が実施例品、No.4〜No.11が比較例品である。表1の測定結果から理解されるように、実施例品は、比較例品よりも、触感が優れていた。
【0025】
【表1】

Figure 2004016966
【0026】
また、前記No.1〜No.3の実施例品に対して、次の試験方法によって各種性能評価を行った。表2は試験結果である。
<試験方法>
・付着性
カッターによって試験片に基材に達する平行線及びその平行線に直角に交わる平行線を引き、4本の直線で囲まれた正方形を100個描く。この部分で剥離試験を行い、正方形の塗膜が剥離した数を調べる。
・引掻き性
テーバスクラッチテスタに1.96Nの荷重を加え試験片を回転させる。回転させた部分の表面状態を10段階の等級で表す。1級が最も悪く、10級が最もよい(以下の試験でも同じ)。
・摩擦堅牢度
乾布:白綿布を被せた摩擦子を試験片上に載せ(このときの荷重は8.82N)、試験片を10往復させて摩擦を加える。この摩擦後、摩擦子に被せた白綿布の汚染状態を観察し、10段階の等級により表す。
湿布:白綿布を酸性の人工汗液に浸漬させ軽く絞ったものを摩擦子に被せる。その後は乾布と同様にする。
・湿冷熱繰り返し
50℃、湿度95%→−30℃→80℃を4サイクル実施し、表面状態の外観観察及び付着性試験を行う。
・耐薬品性
薬品1mlを滴下し、5時間以上放置後、その部分の外観観察を行う。
・耐熱老化性
80℃雰囲気中で規定時間処理後、外観観察及び付着性試験を行う。
・耐湿老化性
50℃、湿度95%雰囲気中で規定時間処理後、外観観察及び付着性試験を行う。
・耐光性
FOM83℃で規定時間処理後、変色を標準色票にて調べ等級で表す。又外観観察及び付着性試験を行う。なお、FOMはフェードメータのことである。
【0027】
【表2】
Figure 2004016966
【0028】
表2から理解されるように、実施例品は、種々の試験において、いずれも要求される性能を満足するものであった。
【0029】
なお、この発明は、前記実施例に限られるものではなく、発明の趣旨を逸脱しない範囲で適宜変更されてもよい。例えば、本発明において、図2に示した連続式の塗装装置を用いて植毛を行えば、優れた感触及び風合いを有する植毛製品を、均一にかつより効率よく得られるようになる。
【0030】
【発明の効果】
以上説明したように、本発明の植毛方法によれば、パイルのサイズのみならず、接着用塗料、パイルの吹き付けタイミング、吹き付け量、使用する吹き付け装置の条件等について総合的に検討し、最適な値を見いだして設定したため、感触及び風合いの優れた植毛製品を得られるようになった。さらにコンベア式の植毛装置を用いれば、優れた感触及び風合いを有する植毛製品を、均一にかつより効率よく得られるようになる。
【図面の簡単な説明】
【図1】この発明の植毛方法によって得られた植毛製品の一例を示す概略断面図である。
【図2】連続式植毛装置を用いて植毛する場合の概略工程図である。
【符号の説明】
1 基材
2 塗膜
3 パイル[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a method for implanting hair.
[0002]
[Prior art]
BACKGROUND ART Conventionally, a base material made of plastic or the like has been subjected to a flocking process to improve the surface feel.
[0003]
JP-A-10-305506 discloses a floc (pile) in which an electro-deposited film is coated on the surface of ultrafine short fibers having a thickness of 0.01 d to 1 d divided from a conjugate fiber. It is described that a hair transplant product having a high quality feel and a high feeling can be obtained by electrostatic flocking.
[0004]
Further, JP-A-10-259353 discloses a one-pack type flocking adhesive water-based paint composition containing water-based epoxy-modified urethane resin or water-based polyester urethane resin as a main component as an adhesive used at the time of flocking, It is described that the flocking product implanted using the one-pack type flocking adhesive water-based paint composition does not lose the flocking fiber during molding such as drawing or bending.
[0005]
[Problems to be solved by the invention]
However, there is a need for a flocking product with a better feel. In addition, in the conventional flocking method, individual studies such as only the pile size or only the adhesive have been performed, and there has been a shortage of studies from a comprehensive viewpoint throughout the flocking method.
[0006]
In view of the above points, the present invention considers not only the pile size but also the adhesive paint, the timing of spraying the pile, the spraying amount, the comprehensive viewpoint including the conditions of the spraying apparatus to be used, and the like, and a more favorable An object of the present invention is to provide a flocking method for a flocking product that can provide a tactile sensation.
[0007]
[Means for Solving the Problems]
The invention according to claim 1 sprays a one-pack paint containing a urethane emulsion onto a substrate, and within 3 minutes after spraying the one-pack paint, has a thickness of 0.3 to 0.8 d and a control width of ± 0.1 d, A pile having a length of 0.3 to 0.6 mm and a management width of ± 0.1 mm is sprayed onto the one-pack paint surface at a rate of 30 to 60 g / min by an electrostatic spray gun having a conveying air pressure larger than a spray pressure. The present invention relates to a hair transplanting method characterized in that:
[0008]
According to a second aspect of the present invention, in the first aspect, the one-pack paint is water-based, the thickness of the coating film formed by spraying on the substrate surface is 20 to 30 μm, and the electric leakage resistance of the pile is 10 6 to 10 6 . It is characterized by being 10 9 Ω / cm.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
The present invention provides a flocking method in which a paint is sprayed on a substrate made of plastic or the like to be planted, and thereafter, a pile is sprayed on the surface of the paint with an electrostatic spray gun. The spraying conditions of the pile with a spray gun were examined comprehensively, and they were optimized. Hereinafter, the present invention will be described in detail. FIG. 1 is a schematic cross-sectional view of an example of a flocking product obtained by the flocking method of the present invention, wherein reference numeral 1 denotes a substrate, 2 denotes a coating film formed by spraying a paint on the substrate 1, and 3 denotes a pile. It is.
[0010]
The coating used in the present invention comprises a one-pack coating containing a urethane emulsion. By including the urethane emulsion in the paint, the pile can be firmly fixed to the paint surface when the pile is subsequently sprayed.
[0011]
As the one-pack paint containing the urethane emulsion, an aqueous (water-based) paint is preferable. A water-based paint can perform better flocking at a lower voltage when spraying a pile on the paint surface than a solvent-based paint.
[0012]
Further, as a one-pack paint containing the urethane emulsion, the physical strength of the formed coating film is 500 to 800%, more preferably 500 to 700% for elongation, and 20 to 40 MPa for tensile strength. JIS-K-5400: 90 paint standard test standard) is preferably used. By having such physical strength, the pile fixed to the coating film is less likely to fall off later, and the feel and feel of the pile surface are further increased.
[0013]
As a specific composition of the one-pack paint containing the urethane emulsion used in the present invention, in particular, one or both of an acrylic resin component and a chlorinated polyolefin resin component and a polyurethane resin component, and the mixing ratio is (acrylic) Resin component and chlorinated polyolefin resin component): (polyurethane resin component) = 98: 2 to 20:80. Further, the one-pack paint containing the urethane emulsion contains, as appropriate, a dispersant, an aqueous dye, an antifoaming agent, a pH adjuster, and the like.
[0014]
The one-pack paint containing the urethane emulsion is sprayed on the surface of the base material by a spray device. At that time, it is preferable that the thickness of the coating film formed on the surface of the base material be 20 to 30 μm. By setting the thickness of the coating film, it is possible to more reliably prevent the subsequent processing of the flocked product and the falling off of the pile at the time of use, and maintain a good feel and texture for a long period of time.
[0015]
The pile used in the present invention has a thickness (fineness) of 0.3 d to 0.8 d and a control width (variation) of ± 0.1 d, and a length of 0.3 mm to 0.6 mm and a control width (variation) of ±. 0.1 mm. By using a pile managed in this range, the feel and texture of the flocking product becomes excellent and closest to that of chamois, and the feel and texture are uniform.
[0016]
The material of the pile may be any of natural, regenerated (semi-synthetic) or synthetic fibers. Preferred pile materials include aromatic polyamide fibers (Kevlar, Nomex, Conex, etc., trade names), other polyamide fibers (6-nylon, 6-6 nylon, 4,6-nylon, etc.), regular polyester fibers, and basic polyester fibers. Dye-dyeable polyester fiber, acrylic fiber, vinylon fiber, regenerated cellulose fiber (rayon), wool fiber, cotton fiber, hemp fiber, polyolefin fiber, collagen fiber, ceramic fiber, carbon fiber, potassium titanate fiber and the like. Particularly preferred among them are polyester fibers and polyamide fibers.
[0017]
Further, the pile used in the present invention preferably has an electric leakage resistance value of 10 6 Ω / cm to 10 9 Ω / cm. By using the pile having the electric leakage resistance value in this range, when the pile is sprayed with the electrostatic spray gun, the pile is appropriately dispersed without being agglomerated and sprayed, and the feel and texture of the flocking product are more excellent. Become something.
[0018]
Further, the electrostatic spraying gun used in the present invention transports the pile to a charging chamber in the electrostatic spraying gun with air pressure, charges the pile, and then applies air pressure to the base material from the gun outlet. A known material that can be sprayed on the surface of the paint is appropriately used. In the present invention, the electrostatic spray gun is used by setting the conveying air pressure to be higher than the blowing pressure. This makes it possible to spray the pile smoothly and uniformly without interruption.
[0019]
After the paint spraying, the time until the pile spraying by the electrostatic spray gun is set within 3 minutes. The time from the spraying of the paint to the spraying of the pile is such that the paint sprayed on the surface of the base material is not completely cured, and the paint on the surface of the base material sufficiently exerts the fixing action of the pile. This is a value set in consideration of efficiency. In particular, when the conveyor type flocking device shown in FIG. 2 is used, since the paint application step and the pile spraying step are separated and performed as separate steps, it is necessary to manage the time from the paint application to the pile spraying. The spraying of the pile within 3 minutes after the spraying of the paint is important for efficiently producing a flocked product having a good feel and texture.
[0020]
Furthermore, it is necessary to spray the pile at a rate of 30 g to 60 g / min. By spraying the pile with the amount in this range, the dispersion of the pile can be made appropriate, and the pile can be sprayed efficiently onto the paint surface of the substrate. In particular, in the conveyor type flocking device, since the base material is sequentially sent to the pile spraying process from the paint application process, the setting of the pile spraying amount per unit time is important from the viewpoint of the production efficiency of the flocking product. is there.
[0021]
Hereinafter, embodiments will be described. The water-based one-pack paint containing the urethane emulsion used in this example was a polyurethane emulsion (trade name: Bihydrol PR240, manufactured by Sumika Bayer Urethane Co., Ltd.) 30 parts by weight, an acrylic emulsion (trade name: Boncoat EC-818, Dainippon Japan) 35 parts by weight of Ink Chemical Industry Co., Ltd., 35 parts by weight of chlorinated polypropylene emulsion (trade name: Hardrain EH-202, manufactured by Toyo Kasei Kogyo Co., Ltd.), dispersant (trade name: Pendat 51, Dow Corning Asia Ltd.) (0.5 parts by weight). The water-based one-pack coating containing the urethane emulsion has an elongation of the coating film of 150% and a tensile strength of 25 MPa (JIS-K-5400: 90).
[0022]
In addition, the pile used in this example has a thickness of 0.3d × 0.3mm in length, and the control width is ± 0.1d for the thickness, ± 0.1mm for the length, and the electric leakage resistance value Made of polyethylene terephthalate (PET) fiber of 10 6 Ω / cm to 10 9 Ω / cm, a thickness of 0.8 d × a length of 0.4 mm, and a control width of ± 0.1 d, a length of the thickness. Of polyamide (PA) fiber having an electrical leakage resistance of ± 10 6 Ω / cm to 10 9 Ω / cm, and a control width of 0.8 d in thickness x 0.6 mm in length. Are made of polyamide fibers having a thickness of ± 0.1 d, a length of ± 0.1 mm, and an electric leakage resistance value of 10 6 Ω / cm to 10 9 Ω / cm. The electric leak resistance is measured by uniformly pushing 10 g of a sample into a cylindrical cylinder, and then measuring the electric resistance (Ω) using an insulation meter (manufactured by Super Mega Ohm Tester Yokogawa Electric or INSULATION Tester Toa Electric). It was done by doing.
[0023]
First, the surface of the ABS base material was degreased, and then the aqueous one-pack paint containing the urethane emulsion was sprayed on the base material surface with a spray gun so as to have a thickness of 20 μm to 30 μm. Within 3 minutes, a pile was sprayed on the surface of the base material paint with an electrostatic spray gun (Electrostatic spray gun manufactured by Nordson Corp.) at a spraying rate of 30 g / min to 60 g / min. The voltage at that time was 50 KV (50,000 volts), and the paint surface of the substrate was grounded. Further, the conveying air pressure of the electrostatic spraying gun is set to 4 kg / cm 2 , the spraying air pressure is set to 1 kg / cm 2 , and the pile is conveyed to the charging chamber in the electrostatic spraying gun by the conveying air pressure. After charging, the surface of the base material was sprayed with the air pressure of an electrostatic spray gun. Thereafter, drying was performed at 80 ° C. for 10 minutes.
[0024]
For comparison, a pile having a size out of the range of the present invention was used, and the other conditions were the same as in the example, and the base material was planted to obtain a comparative example product. Tactile sensation was determined by the seven persons a to g with respect to the example product and the comparative example product. Seven of a to g are familiar with the feel and texture of the flocking product. Table 1 shows the results. In addition, No. 1 to No. No. 3 is an example product; 4-No. 11 is a comparative example product. As can be understood from the measurement results in Table 1, the example product had a better tactile sensation than the comparative example product.
[0025]
[Table 1]
Figure 2004016966
[0026]
In addition, the above-mentioned No. 1 to No. Various performance evaluations were performed on the product of Example 3 according to the following test methods. Table 2 shows the test results.
<Test method>
Draw a parallel line reaching the substrate and a parallel line perpendicular to the parallel line on the test piece with the adhesive cutter, and draw 100 squares surrounded by four straight lines. A peeling test is performed on this portion to check the number of peeled square coating films.
-Apply a load of 1.96 N to the scratchable tabus clutch tester and rotate the test piece. The surface condition of the rotated part is represented by a ten-grade scale. Class 1 is the worst and class 10 is the best (the same applies to the following tests).
-Dryness of friction dry cloth: A friction element covered with a white cotton cloth is placed on a test piece (the load at this time is 8.82 N), and the test piece is reciprocated 10 times to apply friction. After this rubbing, the state of contamination of the white cotton cloth put on the friction element was observed and expressed by a 10-grade scale.
Compress: A white cotton cloth is immersed in an acidic artificial sweat solution, lightly squeezed, and put on a friction element. After that, do the same as with a dry cloth.
4 cycles of 50 ° C., 95% humidity → −30 ° C. → 80 ° C. are repeated for 4 cycles, and the appearance of the surface state and the adhesion test are performed.
-1 ml of chemical resistant chemicals is dropped, and after leaving for 5 hours or more, the appearance of that part is observed.
After heat treatment and aging treatment in an atmosphere at 80 ° C. for a specified period of time, appearance observation and adhesion test are performed.
-Moisture aging resistance: After treatment in a 50 ° C, 95% humidity atmosphere for a specified period of time, appearance observation and adhesion test are performed.
After light resistance FOM at 83 ° C. for a specified time, the discoloration is checked by a standard color chart and expressed in a grade. In addition, appearance observation and adhesion test are performed. Note that FOM is a fade meter.
[0027]
[Table 2]
Figure 2004016966
[0028]
As can be understood from Table 2, the products of the examples satisfied the required performance in various tests.
[0029]
The present invention is not limited to the above-described embodiment, and may be appropriately changed without departing from the gist of the invention. For example, in the present invention, if flocking is performed using the continuous coating apparatus shown in FIG. 2, a flocking product having excellent touch and texture can be uniformly and more efficiently obtained.
[0030]
【The invention's effect】
As described above, according to the flocking method of the present invention, not only the size of the pile, but also the bonding paint, the timing of spraying the pile, the amount of spraying, the conditions of the spraying apparatus to be used, and the like are comprehensively examined, and the optimum Since the values were found and set, it was possible to obtain a flocked product having an excellent feel and texture. Furthermore, if a conveyer-type flocking device is used, a flocking product having an excellent feel and feel can be obtained uniformly and more efficiently.
[Brief description of the drawings]
FIG. 1 is a schematic sectional view showing an example of a flocking product obtained by a flocking method of the present invention.
FIG. 2 is a schematic process diagram in the case where a hair is implanted using a continuous-type hair implantation apparatus.
[Explanation of symbols]
1 base material 2 coating film 3 pile

Claims (2)

ウレタンエマルジョンを含む一液塗料を基材に吹き付け、前記一液塗料の吹き付け後3分以内に、太さ0.3〜0.8dで管理幅が±0.1d、長さ0.3〜0.6mmで管理幅が±0.1mmのパイルを、搬送エア圧力が吹き付け圧力よりも大の静電散布ガンにより、30〜60g/分で前記一液塗料表面に吹き付けることを特徴とする植毛方法。A one-part paint containing a urethane emulsion is sprayed on the substrate, and within 3 minutes after the one-part paint is sprayed, the thickness is 0.3 to 0.8 d, the control width is ± 0.1 d, and the length is 0.3 to 0. A flocking method comprising spraying a pile having a thickness of 0.6 mm and a control width of ± 0.1 mm onto the surface of the one-pack paint at a rate of 30 to 60 g / min by an electrostatic spray gun having a conveying air pressure larger than a spray pressure. . 一液塗料が水系であって、基材表面への吹き付けによって形成される塗膜の厚みが20〜30μm、パイルの電気漏洩抵抗値が10〜10Ω/cmであることを特徴とする請求項1に記載された植毛方法。The one-pack paint is water-based, and the thickness of the coating film formed by spraying on the substrate surface is 20 to 30 μm, and the electric leakage resistance value of the pile is 10 6 to 10 9 Ω / cm. A hair transplant method according to claim 1.
JP2002177034A 2002-06-18 2002-06-18 Flocking method Pending JP2004016966A (en)

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JP2007290158A (en) * 2006-04-21 2007-11-08 Nitsusen:Kk Trimming flocked product for automobile
CN109517567A (en) * 2018-12-03 2019-03-26 苏州市陆氏新材料有限公司 A kind of preparation method of weather strip for automobile water soluble flocking glue
US11007549B2 (en) 2015-11-09 2021-05-18 Chuo Hatsujo Kabushiki Kaisha Flocking powder coated article
WO2022038520A1 (en) * 2020-08-18 2022-02-24 Belgravia Wood Limited Ornamental flocking and methods of making same

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CN106378289A (en) * 2016-08-30 2017-02-08 芜湖众力部件有限公司 Plastic part flocking method
CN106345663A (en) * 2016-08-30 2017-01-25 芜湖众力部件有限公司 Method for flocking interior trim parts of automobiles

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JPS6020108B2 (en) * 1981-06-23 1985-05-20 株式会社杉野鉄工所 Chain wheel manufacturing method
JP3197943B2 (en) * 1992-04-30 2001-08-13 エステー化学株式会社 Brushed product made of natural rubber and method for producing the same
JPH10259353A (en) * 1997-03-21 1998-09-29 Sumitomo Shoji Kk Water-base coating composition for flock adhesion
JP3787670B2 (en) * 1997-05-07 2006-06-21 株式会社ニッセン Flock for electrostatic flocking and method for producing the same
JP4348653B2 (en) * 1998-08-19 2009-10-21 ミカサペイント株式会社 Pile coating method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007290158A (en) * 2006-04-21 2007-11-08 Nitsusen:Kk Trimming flocked product for automobile
US11007549B2 (en) 2015-11-09 2021-05-18 Chuo Hatsujo Kabushiki Kaisha Flocking powder coated article
CN109517567A (en) * 2018-12-03 2019-03-26 苏州市陆氏新材料有限公司 A kind of preparation method of weather strip for automobile water soluble flocking glue
WO2022038520A1 (en) * 2020-08-18 2022-02-24 Belgravia Wood Limited Ornamental flocking and methods of making same

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