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模壓材料的選擇【步殼印刷​】

From:Buke printing factory of China | Author:China Bukeprinting factorybook0755 | Published time: 2023-02-06 | 35 Views | Share:
模壓材料的選擇【步殼印刷​】

模壓材料的選擇步殼印刷


適合於全息標識模壓復制的材料是熱塑性材料,主要有以下幾種:聚氯乙烯(PVC)薄膜或片材(透明或鍍鋁):聚酯(PET)薄膜或片材(透明或鍍鋁):適於向紙張、織物或塑料上轉印的燙印金屬箔、電化鋁箔等

目前使用最多的材料是聚氯乙烯(PVC)和聚酯(PET),在實際生產過程中可以根據具體設備和工藝條件進行選擇,一般來說應考慮以下原則

1)要求材料透明、平整、厚度均勻(誤差≤±10%),無水紋、污漬、劃痕,增塑劑含有的雜質盡可能少,較好的耐磨性和全息層的透過率超過90%

2)採用鍍鋁的聚氯乙烯(PVC)和聚酯(PET)時,雖然可以減少一道後工序鋁)的加工,但在模壓復制時由於熱塑性材料與金屬反射層同時變形,因此加工的溫度和壓力更高。要求鍍鋁反射層牢固、緻密、無砂眼

3)對於不同規格的材料要選擇不同的壓印方式,捲筒材料(薄膜)適合滾壓加工方式,一般要求薄膜在0.050.1mm之間。片材適合於平壓(平壓只能加工較厚、較硬的片材),當金屬模壓版厚度均勻性好時,片材的最小厚度可以達到01m

 

模壓材料的選擇【步殼印刷】

模壓材料的選擇步殼印刷

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