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相關文獻
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頁籤選單縮合
題 名 | Opacity of White Envelope Papers=白信封紙之不透明度 |
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作 者 | 郭蘭生; 藍浩繁; 鄭殷立; 鄭雅月; | 書刊名 | 臺灣林業科學 |
卷 期 | 12:1 1997.03[民86.03] |
頁 次 | 頁53-59 |
分類號 | 476.5 |
關鍵詞 | 不透明度; 白色信封紙; 基重; 散射係數; 吸收係數; Opacity; White envelope paper; Basis weight; Scattering coefficient; Absorption coefficient; |
語 文 | 英文(English) |
中文摘要 | Although the concept of higher opacity of envelope paper is well under- stood, methods of increasing the opacity of envelope paper are made more difficult by a conflict between increasing transportation and mailing cost and decreasing basis weight. The increase in the opacity of paper envelopes (weight range: 50-110 g/m �� ) is strongly dependent upon the scattering and coefficient,S, and absorption coefficient,K. The tendency of 14 commercial white paper envelopes from Taiwan and the U.S.A. to gain apparent opacity by printing the high absorption power blue, purple, green, and black inks on 1 side of the envelope paper was evaluated by comparing with filled white papers of a similar basis weight level. |
英文摘要 | 雖然人人皆知白信封紙應有較高的不透明度以達保密及保護之效,由於為降低信 件運費或郵資,生產信封紙者面臨既要基重下降又同時兼顧高不透明度之困境。理論上,欲 增加市售白信封紙者既要基重下降又同時兼顧高不透明度之困境。理論上,欲增加市售白信 封紙(基重:50 ∼ 100 g/m �插^之不透明度則應增加紙之散射係數,s,及吸收係數,k, 方為宜。比較在 14 種市售白信封紙中添加填料、增加紙之基重及於紙之背面印以藍、綠、 紫及黑色印墨等增加信封紙不透明度之諸法效果,吾人發現在不增加白信封紙基重大前提下 ,以單面印刷印墨者對白信封紙不透明度之改善效果最佳。 |
本系統中英文摘要資訊取自各篇刊載內容。