Laid paper: Paper with watermark lines about 1mm apart crossed at 90 degrees by lines 25mm apart formed by a dandy roll on the paper making machine.

• 帘纹纸:造纸时，由水印辊压上横直相同间线条的纸。横线约隔1毫米，直线约隔断5毫米，极像竹帘纹理。