1、 Whiteboard

白板紙是一種正面呈白色且光滑，背面多為灰底的紙板，這種紙板主要用于單面彩色印刷后制成紙盒供包裝使用，亦或者用于設計、手工制品。好的白板紙一般要求質地緊密，表面光滑，厚薄一致，紙面不起毛，吸收性好，而且伸縮率小，并能適應多色套印的要求。為了適應制盒的要求，白板紙還應具有挺度大，耐折度好的特點。主要進口有：韓國、印度尼西亞、美國、日本等，尤以日本產白板紙質量為佳。

Whiteboard is a kind of paperboard with white and smooth front and gray background on the back. This kind of paperboard is mainly used for making cartons for packaging after color printing on one side, or for design and handicrafts. Good white board paper generally requires tight texture, smooth surface, consistent thickness, no fuzzing on the paper surface, good absorption, small expansion rate, and can meet the requirements of multi-color overprint. In order to meet the requirements of box making, white board paper should also have the characteristics of large stiffness and good folding resistance. The main importing countries are South Korea, Indonesia, the United States, Japan and so on, especially the quality of Japanese white board

二、牛皮卡紙

2、 Kraft paperboard

牛皮卡紙，我國稱為箱板紙，是紙箱用紙的主要紙種之一。國產箱板紙分為優(yōu)等品、一等品、合格品三個等級。牛皮紙的質地堅韌，耐破度、環(huán)壓強度和撕裂度要高，此外還要具有較高的抗水性。由于工藝及用料的不同，總的來說，大部分進口牛皮卡紙的質量要好于國產牛皮紙，尤其以美國產牛卡的質量為佳。檢測項目有：定量、厚度、緊度、耐破度、耐破指數、環(huán)壓強度、橫向環(huán)壓指數、裂斷長、撕裂度、施膠度、水分、橫幅定量差、橫向耐折度等等。

Kraft paperboard, called carton board in China, is one of the main types of paper for cartons. Domestic carton board paper is divided into three grades: excellent products, first-class products and qualified products. Kraft paper is tough, with high burst resistance, ring crush strength and tear resistance. In addition, it also has high water resistance. Due to different processes and materials, in general, the quality of most imported kraft linerboard is better than that of domestic Kraft linerboard, especially the quality of American Kraft linerboard. The test items include: ration, thickness, tightness, bursting strength, bursting index, annular compression strength, transverse annular compression index, fracture length, tearing degree, sizing degree, moisture, quantitative difference of horizontal banner, transverse folding resistance, etc.

三、瓦楞原紙

3、 Corrugated base paper

瓦楞原紙是生產瓦楞紙板的重要組成材料之一。瓦楞原紙要求纖維結合強度好，紙面平整，有較好的緊度和挺度，要求有一定的彈性，以保證制成的紙箱具有防震和耐壓能力。此外對水分指標要加以控制，水分過小，紙脆，瓦楞加工時會發(fā)生破裂；水分過大，紙軟，會給加工成型帶來困難。一般紙的含水量應控制在10％左右為宜。國產瓦楞原紙分為A、B、C、D四個等級。

Corrugated base paper is one of the important constituent materials in the production of corrugated board. Corrugated base paper requires good fiber bonding strength, flat paper surface, good tightness and stiffness, and a certain degree of elasticity, so as to ensure that the made carton has shockproof and pressure resistance. In addition, the moisture index should be controlled. If the moisture is too small, the paper will be brittle, and it will break during Corrugated processing; Excessive moisture and soft paper will bring difficulties to processing and molding. Generally, the moisture content of paper should be controlled at about 10%. Domestic corrugated base paper is divided into four grades: A, B, C and D.

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