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Color adhesive label printing technology sharing
time:
2018/05/10
Source:
Guangzhou Guangcai Label Co., Ltd.
With the continuous improvement of people's living standards and the continuous expansion of China's printing market, the market share of trademarks and stickers is increasing day by day, and the color adhesive printing market is also increasing day by day. This brings unlimited business opportunities for adhesive label printing.
key points of color adhesive printing technology:
1. should pay attention to the adjustment of paper conveying part when printing adhesive. The air volume of the paper suction nozzle and the paper blowing nozzle of the paper conveying part should be increased accordingly.
Food self-adhesive production
2. paper separating suction nozzle and paper feeding suction nozzle should be replaced with rubber rubber rubber ring with larger diameter and thickness, so as to realize the purpose of stable paper feeding and no swing of paper feeding roller.
3. adhesive is the thickness of two layers of coated paper, the thickness of the paper should pay attention to the corresponding increase in the gap between the two controllers, and the distance between the paper pressing tongue of the side gauge and the front gauge and the cardboard to be transported should be increased.
4. the distance between the paper delivery pad and the surface of the impression cylinder and between the paper delivery pad and the cardboard should be increased, and the distance should be kept approximately equal to the thickness of the paper plus 0.3mm.
printing adhesive
5. adjust the printing pressure. In the offset printing process, the printing plate, rubber, imprint 3 each two adjacent cylinders are in contact with each other, pressing and transferring. In order to obtain normal ink transfer on the printing paper and truly reproduce the continuous tone characters, lines, images and halftone dots of the graphic part, these marks must be additionally subjected to necessary printing pressure in addition to the contact between the surfaces of the two cylinders. The severity of the printing pressure and the accuracy of the adjustment will directly determine the degree of ink color size, depth and pros and cons of graphic transfer and printing dot reproduction. It is necessary to adjust the center distance between the impression cylinder and the blanket cylinder during adhesive printing, and the center distance of the cylinder can be enlarged by about 0.2~0.4mm. If the paper changes from thick to thin, the thickness that should be reduced is the thickness of the lining removed from the printing plate liner and added to the blanket cylinder. If the paper during printing changes from thin to thick, a certain thickness will be subtracted from the blanket cylinder liner and the corresponding thickness will be added to the liner of the plate cylinder.
6. should be compacted and compacted during plate loading to prevent relative slippage during printing. in actual production, the ideal printing pressure is generally controlled at about 0.15-0.25mm. it must be emphasized that the ideal printing pressure is to make the imprint of the graphic part of the printing plate strong enough on the paper under the condition of certain compression deformation of the printing surface, and the minimum pressure is adopted on the basis of clear and complete dots.
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Head office: Guangzhou Guangcai Label Co., Ltd.
Address (Add): No.2, Wei Da Lu, Dazhou Village, Shibi Street, Panyu District, Guangzhou
Foshan Branch: Guangdong Guangcai Label Co., Ltd
Address (Add): 8th Floor, Building 15, Haichuang Dazu Robot Manufacturing Center, No. 3 Erzhi Industrial Avenue, Xihai Village, Beijiao Town, Shunde District, Foshan City
Shanghai Branch: Guangcai Label (Shanghai) Co., Ltd.
Address of Shanghai Branch (Add): Building 4, 626 Baoyuan Fifth Road, Jiading District, Shanghai
Jiangxi Branch: Guangcai Label (Jiangxi) Co., Ltd
Jiangxi Branch Address (Add): Within the Pharmaceutical and Chemical Industry Base of Tianfan Street Industrial Park, Poyang County, Shangrao City, Jiangxi Province
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