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研究生:吳宗駿
研究生(外文):Zong-Jyun Wu
論文名稱:以多孔片狀氧化鋁粉末製作噴墨印刷相紙之表面塗層
論文名稱(外文):Application of porous flake-alumina powders in fabricating surface layer of Ink-jet photo papers
指導教授:顏富士顏富士引用關係
指導教授(外文):Fu-Shih Yan
學位類別:碩士
校院名稱:國立成功大學
系所名稱:資源工程學系碩博士班
學門:工程學門
學類:材料工程學類
論文種類:學術論文
論文出版年:2008
畢業學年度:96
語文別:中文
論文頁數:55
中文關鍵詞:氧化鋁
外文關鍵詞:Alumina
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噴墨印刷(Ink-jet Printing)已為近代數位印刷的主流。其中數位相片亮面用紙(Ink-jet Papers)也已在市面普及化。但因這類紙張之表面塗層(Laminating)其原料取得及製程技術相對複雜,因此市售價格仍居高不下。藉由對價格低廉的Gibbsite熱處理獲得過渡相氧化鋁粉末(NFP-Al2O3),因其粒體呈片狀結構且具備表面多微孔特性,因此極適合作為固定色料的載體,可供作成塗層材料。本研究將其NFP-Al2O3微粒化後作為數位印刷相紙表面塗層材料。
本研究觀察NFP-Al2O3粉末的基本漿料性質及作為噴墨印刷紙張塗層材料的可能性。研究以四種粒徑粉末作為起始漿料,透過pH值調整性質後再加入PVA膠料製成印刷紙張,最後觀察不同條件下作為塗層之功能:
研究結果顯示:
(1) 四種粉體粒徑分佈的漿料在陳化後做為塗布原料,均可製得吸墨性佳的塗層紙,其表面光澤度(Gloss)隨粒徑變細而增加。顯示細化NFP-Al2O3有助於提高塗層紙對光線的反射率。
(2) 小粒徑漿料在相同固含量及膠料添加量下製成的塗層紙,其吸墨性隨著漿料pH值增加而攀升,顯示較高凝聚狀態漿料,對製得的塗層紙吸墨性有顯著的改善。
(3) 塗層紙表面裂縫出現的面積比,隨PVA膠料添加量的增加而減少。PVA添加量達18 wt%時可得到表面緻密無裂縫的相紙。
(4) 以NFP-Al2O3做為塗層原料,當系統製作亮面塗層紙時,漿料之最適條件為:pH值=5.4、固含量:30 wt%、PVA添加量:14 wt%。
Ink-jet Printing has been the main stream of the modern digital printing. And the Ink-Jet Papers has popularized in the market. However, the costs of these papers are too high because the raw materials of the laminating are difficult to be obtained and the fabrication procedures are relatively complicated. The NFP-Al2O3 calcined from low price Gibbsite could become a good candidate for carriers of laminatings in fixing dye and pigment due to the character of the flake structure and the microporous on the surface.
The basic properties of the NFP-Al2O3 slurry and the possibility to be the materials of laminating of Ink-jet printing papers were investigated in this study. Four slurries with different particle sizes were used as starting materials. The ink absorption capacity of the laminating was examined by adjusting the pH and adding PVA in these slurries. The results are as followed:
(1) The coating papers with high ink absorption capacity can be obtained by using the four slurries aging accompanied with different particle size distribution as coating materials. The gloss of papers increases with the reduction of particle sizes. It is showed that ground NFP-Al2O3 can enhance the gloss of laminating.
(2) The Ink absorption capacity of laminating fabricated by the slurry with fine particles at the same solid contain and PVA addition gets higher when the pH value increases. It implies slurries with higher agglomerated state are favorable for Ink absorption capacity of laminating.
(3) The area percentage of crack on laminating decreases as the addition of PVA increases. And the laminating without cracks can be fabricated when the amount of PVA approaches 18 wt%.
(4) To fabricate glossy coating papers using NFP-Al2O3 as raw materials, the most appropriate condition is as followed: pH= 5.4, S.C= 30 wt% and PVA addition= 14 wt%.
中文摘要 I
Abstract II
致謝 IV
目 錄 V
表目錄 VIII
圖目錄 IX
第一章 緒論 1
1.1 前言 1
1.2 研究動機 2
1.3 研究目的 2
第二章 理論基礎與前人研究 3
2.1 Gibbsite及其過渡相χ-Al2O3 3
2.1.1 Gibbsite結構 3
2.1.2 Gibbsite可能存在的相轉換 6
2.1.3 χ-Al2O3 7
2.2 微粒化過程分散劑對系統影響 8
2.3 塗層紙的性質 8
2.3.1 噴墨塗層紙的構造 9
2.3.2 印刷四原色CMYK 10
2.3.3 塗層裂縫生成機制 11
第三章 實驗方法與步驟 13
3.1實驗構想與設計 13
3.2實驗步驟 13
3.2.1 製備起始NFP-Al2O3粉末 13
3.2.2 漿料處理 13
3.3塗層紙的製作及塗層性質檢測 15
3.3.1塗布漿料製備 15
3.3.2塗層紙樣品的製作 15
3.3.3塗層性質檢測 15
3.4 特性分析 16
3.4.1 粉末結晶相分析 16
3.4.2 顯微結構分析 16
3.4.3 BET比表面積測定 16
3.4.4 粒徑分佈量測 16
3.4.5塗層紙的吸墨性量測 17
3.4.5 亮度計(Gloss meter) 17
第四章結果與討論..................................................................................... 20
4.1 起始原料粉末製備......................................................................... 20
4.2 起始粉末研磨特性分析.................................................................. 25
4.2.1 研磨特性............................................................................... 25
4.2.2 比表面積變化....................................................................... 25
4.2.3 XRD 繞射分析....................................................................... 25
4.2.4 TEM 顯微觀察....................................................................... 25
4.3 漿料製作......................................................................................... 31
4.3.1 起始漿料pH 值與表面電位關係......................................... 31
4.3.2 漿料穩定性........................................................................... 31
4.4 塗層製作......................................................................................... 35
4.4.1 粒徑與光澤度(Gloss)............................................................ 35
4.4.2 不同粒徑漿料在陳化前後製成的塗層吸墨性影響............. 35
4.4.3 PVA 添加量對以NFP-Al2O3 製成的塗層紙表面緻密性比較
........................................................................................................ 35
4.5 最適塗層條件決定......................................................................... 41
4.5.1 pH 值與NFP-Al2O3 漿料凝聚程度關係................................ 41
4.5.2 PVA 添加量對不同pH 值漿料做為塗層紙的吸墨性影響... 43
4.5.3 固含量對不同pH 值漿料做為塗層紙的吸墨性影響.......... 43
4.6 綜合結論......................................................................................... 46
第五章結論................................................................................................. 47
參考文獻....................................................................................................... 48
Appendices .................................................................................................... 51
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