瓦楞纸箱预印工艺以及操作要点是什么？下面就来听听行业为大家详细的介绍。
What are the pre printing process and operation points of corrugated box? Now let's listen to the detailed introduction of industry experts.
凹版印刷纸箱预印是将瓦楞纸箱在作成瓦楞纸板之前预先采用凹版印刷技术，在宽幅卷筒纸（纸箱面纸）上预先印刷好所需的精美图案，将卷筒状印刷好的面纸上瓦楞纸板生产线做成瓦楞箱板，再用模切机模切压痕成箱型。
Intaglio printing carton preprint is to use intaglio printing technology in advance before making corrugated carton into corrugated board, pre print the required exquisite patterns on wide web paper (carton face paper), make the corrugated board production line on the web printed face paper into corrugated box board, and then use the die-cutting machine to cut and indentation into box shape.
卷筒纸凹版印刷预印技术的工艺流程为：凹版印刷机印刷面层纸卷→纸板线生产裁切成三层（或五层）纸板→模切压痕成型→钉箱/粘箱。
The process flow of Web intaglio printing preprint technology is as follows: intaglio printing machine printing surface layer paper roll → paperboard production line cutting into three (or five) layers of paperboard → die cutting and indentation molding → nail box / stick box.
凹版预印的主要原因有二，其一是凹印能够轻松提供高质量的彩色印品；其二是电子雕版技术使金属版辊的制作周期和成本大幅度下降，接近甚于柔性版。国内陕西北人已生产出高速宽幅纸凹机，只及进口柔性版印刷机的三分之一，采用凹版预印方式可能更适合我国包装企业的实情。预印具有以下一些优点：
There are two main reasons for gravure pre printing. One is that gravure printing can easily provide high-quality color prints; The second is the electronic engraving technology, which greatly reduces the manufacturing cycle and cost of metal plate roller, which is close to or even lower than that of flexible plate. The domestic beiren of Shaanxi Province has produced high-speed wide width paper concave machine, and the price is only one third of that of imported flexographic printing machine. The use of concave preprint may be more suitable for the actual situation of packaging enterprises in China. Preprint has the following advantages:
其一是可获得更高的印刷质量，适应性更广。国内生产的纸张凹印油墨已经比较成熟，已经制造出能满足瓦楞纸板线预印用的水性纸张凹印油墨，可以满足瓦楞纸板生产线上180℃高温和热板磨擦。进行大幅面多色彩色印刷。传统彩色胶印zui大幅面一般可1.2m×0.9m（大全张），多为四色印刷，纸箱预印用机组式凹版印刷机zui大印料幅宽为2.5米（包括1300mm、1650mm、1800mm、2000mm、2200mm、2500mm），印刷色数可达4-10色组，同时还可进行金墨、银墨等特殊油墨的印刷。
First, it can obtain higher printing quality and wider adaptability. The paper gravure printing ink produced in China has been relatively mature, and the water-based paper gravure printing ink that can meet the pre printing of corrugated board line has been manufactured, which can meet the high temperature of 180 ℃ and hot plate friction of corrugated board production line. Large scale multi-color printing. Traditional color offset printing Zui large format can generally be 1.2m × 0.9m (large full sheet), mostly four-color printing. The carton pre printing uses the unit gravure printing machine Zui. The width of the large printing material is 2.5m (including 1300mm, 1650mm, 1800mm, 2000mm, 2200mm and 2500mm). The number of printing colors can reach 4-10 color groups. At the same time, it can also print gold ink, silver ink and other special inks.
其二是可使瓦楞纸板获得zui高强度，由于预印刷不用在纸板成型后压印，可避免造成瓦楞变形和纸板强度减弱。由于预印用生产瓦楞纸箱是在生产线上完成的，在制作时有一定的加热成型时间，zui终生产的瓦楞纸箱强度高，可以避免贴面机生产时产生的涂胶不匀、纸箱起筋，纸板翘曲等现象。
The second is that the corrugated board can obtain Zui high strength. Because the pre printing does not need to be embossed after the forming of the board, the corrugated deformation and the weakening of the strength of the board can be avoided. As the production of corrugated boxes for pre printing is completed on the production line, there is a certain heating and forming time during the production. The corrugated boxes produced by Zui final production have high strength, which can avoid the phenomena of uneven gluing, stiffened cartons and warped cardboard produced by the veneering machine.
其三是生产效率高，便于生产管理，废品率等。大型和异型纸箱的印刷，适合大批量的长版印刷。预印用版均采用的是钢制镀铬电雕凹版，耐印次数为300万-400万印，减小了换版时间，适合大批量长版活的印刷。
Third, high production efficiency, easy production management and low scrap rate. The printing of large and special-shaped cartons is suitable for large-scale long plate printing. The pre printing plates are made of steel chrome plated electric engraving intaglio plates, with printing resistance of 3-4 million prints, which reduces the plate change time and is suitable for large quantities of long plate printing.
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