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燙金彈力布須知,您了解嗎發布時間:2017-03-28 13:50:17

  彈力布綢緞大多采用活性染料印花,一般使用海藻酸鈉和合成糊料。但彈力布結構緊密,布面光潔,色漿留在織物表面較多,不易滲透。多套色印花易產生壓糊,看上去不精細,平網印花還會產生框子印。由于彈力布或多或少的有一些張力,在做整卷的布匹燙金加工過程中,布匹與燙金紙都在同時運動,在做多色燙金時,就不太好控制套色的準確性,這個時候,就只能退而求其次,先把單色燙金做好。

  在做彈力布燙金時,一般,由上方的鋁板發熱并往下運動。燙金時需要考慮的壓力與時間,要看所印圖案膠水層的高度與彈力布所能承受的溫度。大部分情況,溫度140°~160°之間,壓力5kg以上,時間10秒(參考值)。溫度過低,燙金牢度不理想;反之,彈力布燙金后,布面泛紅(白布則泛黃)變色。壓力過低,牢度會有所影響;過高,立體燙金漿的花型壓塌,失去立體感。

  

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