電暈處理筆
 
一、定  義  

     電暈測試筆又名達因筆及塑膠薄膜表面張力檢測筆。是薄膜表面電暈度(達因)的測試工具,專門用於測定薄膜受電暈處理後的效果。能準確地測試出塑膠薄膜表面張力是否達到試筆的數值。令使用者清楚瞭解此薄膜是否適合於印刷,複合或真空鍍鋁等等,從而有效地控制品質,減少因材質不合格所造成的損失。

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二、測試效果  

已經適當電暈處理的薄膜若畫線很平均地分佈,不起任何珠點,則說明該

膜表面達因,高於或等於達因筆上所標出的指數

沒有適當電暈處理的薄膜若畫線慢慢地收縮,則說明該薄膜表面達因,低於達因筆上所標出的指數。

沒有電暈處理的薄膜若畫線立即收縮,並且形成珠點,則說明該薄膜表面達因,極低於達因筆所標出的指數。

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三、注意事項  

    為了防止出現不精確的讀數,此筆不應在高於200度或低於零度的地方使用和儲存.更不要在陽光下直射.在不使用時將其放置在盒內並蓋緊蓋子.該筆若多次露置於空氣中會影響其測量的精確度.關好盒子可以防止類似現象的發生.

   如測試筆經常露置於空氣中,請常常置換墨水.

   

Contain no Formamide and are Quick Drying

Sherman Test Pens are designed to indicate film surface treatment levels on polymer based substrates and establish that the material is correctly treated prior to printing.   The barrel of the pen is printed with the minimum dyne level that the ink will determine.


Application

Draw a line across the material being tested.  Apply sufficient vertical pressure to enable a good ink flow. Excessive pressure will adversely affect film surface treatment levels.

Results

1. Properly Treated:
The ink lies evenly on the material in a continuous line. There is no ink reticulation.  The surface tension of the material is at, or higher than, the dyne level of the ink.

2. Not Treated:
The ink reticulates into droplets.  The surface tension of the material is well below the dyne level of the ink.

3. Partial Treatment:
The ink line is defined but there is partial reticulation from the edges.  The surface tension of the   material is just below the dyne level of the ink.

   
   
   
 
   
聯系電話(TEL):86-769-85540548, 85301202
傳   真(FAX):86-769-85322000

地  址(Addr.):中國廣東東莞市長安鎮橫崗頭工業區
HengGangTou Industrial Estate, ChangAn, DongGuan, China

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