The collotype process, i. e. with a subtle collotype for electrophotographic copying, applicable to the change of strokes, rich layers of ink painting, but the size and the original one.
③珂罗版法，即用较精微的珂罗版进行照相复制，适用于笔触变化多、墨色层次丰富的书画，但尺寸与原作不一。
The technologies most used for reproduction of Chinese ancient books on Xuan paper such as digital ink jet, woodblock watermark, collotype and screen print were compared and analyzed.
系统分析比较了数码喷墨、木版水印、珂罗版复制、丝网印刷等当前宣纸古籍复制主流技术；
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