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troduction of Decoration for Mobile Phone 塗料用助劑 塗料中添加例如安定劑、分散劑、防沉劑等助劑;增加塗料的穩(wěn)定性。 Introduction of Decoration for Mobile Phone 稀釋劑及用途 顧名思義就是要稀釋塗料,使塗料稀釋到可以作業(yè)的濃度並可以降低塗料的成本。利用有機(jī)溶劑各成分沸點(diǎn)的不同,乾燥速度也不同,可以製作成適合各種噴塗設(shè)備、作業(yè)方法及塗膜不同的表現(xiàn)。 Introduction of Decoration for Mobile Phone 現(xiàn)有機(jī)種在噴漆上所遇到的問(wèn)題點(diǎn) (1 )噴漆層過(guò)厚 (2 )噴漆粒子過(guò)粗 (3 )噴漆均勻度差 (4 )耐磨性差 (5 )噴漆有死角 (6 )噴漆底材的運(yùn)用問(wèn)題 (7 )噴漆影響材質(zhì)的強(qiáng)度 (8 )噴漆表面的髒點(diǎn) Introduction of Decoration for Mobile Phone 第二部分 IMD(InMold Decoration) (模內(nèi)射出裝飾 ) 所謂 IMD即為模內(nèi)射出裝飾之統(tǒng)稱(chēng),目前依製程不同可分為 IMF及 IML兩種,其概要程序如下: ? 薄膜印刷 (IMF, IMR) ? 高壓真空成型 (IMF) ? 精密 3D裁切加工 (IMF) ? 薄膜射出成型加工 (IMF, IMR) Introduction of Decoration for Mobile Phone IMF (InMold by Film) 此製程是先將油墨印刷在一層厚度約 m/m的 Film上 (材質(zhì)為 PC或 PET), 經(jīng)過(guò)forming之後,於射出機(jī)臺(tái)上,靠著模具定位機(jī)構(gòu)定位,在模內(nèi)與基材一同成型。 dry thoroughly Introduction of Decoration for Mobile Phone IMF 成形步驟 (三 ) IMD Film Remove 1st surface laminate Introduction of Decoration for Mobile Phone IMF 成形步驟 (四 ) HOT AIR HOT AIR HOT AIR Forming Niebling Introduction of Decoration for Mobile Phone IMF 成形步驟 (五 ) Vacuum Vacuum Forming Thermoforming Introduction of Decoration for Mobile Phone IMF 成形步驟 (六 ) (Optional) UV Curing UV Light ? After curing the hard coat surface is scratch resistant Introduction of Decoration for Mobile Phone Film 的材質(zhì)選用 ?PC – 最佳的底材 ?PMMA 較易脆裂、但透明度較高 ?Polyester 成形性及硬度均佳 ?Formable PET – Further development Introduction of Decoration for Mobile Phone 使用 PC的優(yōu)缺點(diǎn) ?Benefits ?Clarity ?Ease of cutting/printing ?Compatibility with moulding resin ?Disadvantages ?Form precision (177。 ) ?Excellent weathering ?Pencil hardness ?Disadvantages ?Brittle (cutting handling problems) ?Potential adhesion problems to resin ?Form can relax in moulding tool ?Chemical resistance Introduction of Decoration for Mobile Phone 使用 Formable PET的優(yōu)缺點(diǎn) ?Benefits ?Excellent flex resistance ?Excellent chemical resistance ?Improved formability (form precision not yet determined) ?Disadvantages ?Cost ?Compatibility with moulding resin ?Relaxation in mould ?Limited supplier choice ?Not yet mercial Introduction of Decoration for Mobile Phone 鉛筆硬度測(cè)試比較 ?PMMA 最佳 ?PET 次之 ?PC 最差 Introduction of Decoration for Mobile Phone Stress v. Temp 100% Strain various polymers 0123456789100 120 140 160T e m p ( d e g C )Stress (kg/sqmm)P C M DP C T DP M M A T DP M M A M DB a yf o l M DB a yf o l T DP E T M DP E T T DIntroduction of Decoration for Mobile Phone 現(xiàn)有機(jī)種在 IMF上所遇到的問(wèn)題點(diǎn) . Film的定位問(wèn)題 .油墨選用的問(wèn)題( shining、 separate等 … .) .外觀變化性的問(wèn)題 . Forming的 Die cut 問(wèn)題(毛邊) . Forming 抽深不能過(guò)深 (建議小於 ) .翹曲的問(wèn)題 Introduction of Decoration for Mobile Phone IMR (InMold by Roller) ? 此製程是先以滾桶印刷方式,將 fil