In the printing work, we sometimes use the material of offset paper for printing film coating. So today we will introduce the characteristics and usage of this material in detail: Printed film lamination is mainly to combine plastic film and paper together to become a high-quality product of paper and plastic, which improves the value and taste of paper. The paper used for laminating mainly includes offset paper, art paper and white paperboard. Offset paper has an opaque texture, small stretchability, and smoothness, making it a better printing paper. Offset paper is paper used for printing by offset presses, mainly printing covers, pictorials, advertisements, trademarks, inserts, maps, posters, commodity packaging, and various texts of books and periodicals. Offset paper is suitable for multi-color printing. Offset paper is divided into double-sided offset paper and single-sided offset paper, and is further divided into flat paper (single paper) and roll paper. Double-sided offset paper is commonly used in 70, 80, 90, 100, 120g / m2 and other types, single-sided offset paper is commonly used in 50, 60, 70, 80g / m2 and other types of moisture content 4% ~ 9%. 500 sheets of flat offset paper are one order, and the weight of each order is determined according to the paper weight and specifications. According to the characteristics of offset printing, the quality and printability of offset paper should meet the following requirements: (1) The paper has high strength and good water resistance. Offset printing has a high tensile force on the paper, which requires high surface strength and tight texture. The paper must not be dusted or fluffed to avoid paste. The strength of the paper surface is insufficient, and the paper fibers and fillers will stick to the surface of the rubber cylinder during the imprinting process, resulting in poor printing quality and sticky rubber blankets. Offset printing has a wetting system, which requires a certain degree of water resistance on the surface of the paper. (2) The paper stretch rate is small and the stiffness is large. Paper stretch rate refers to the rate of dimensional change after wetting and drying. Large expansion and contraction rate not only affects the accuracy of multi-color overprint, but also affects the quality of the film. The viscosity of offset printing ink is large. If the stiffness of the paper is not large enough, the printed paper is not easy to separate from the rubber cylinder. (3) The paper surface is smooth and the ink absorption should not be too high. The surface of the offset paper is uneven, and the fiber distribution is uneven, which will cause the graphic imprint to be not strong and the layers are not clear. The ink absorption of offset paper is too high, the connecting material in the ink quickly penetrates into the paper, and the pigment particles are deposited on the paper surface, causing quality problems such as weak imprinting, through printing, and dull gloss. Offset printing ink mainly relies on oxidative polymerized conjunctiva, wraps and dries pigment particles, and only a small part is absorbed and dried by paper. (4) The paper has a neat appearance and a close texture. There should be no wrinkles, streaks, spots, light spots, cracks, holes, sand, impurities, etc. on the appearance of the paper. The texture is tight, white and uniform, and the quality of sizing and calendering is good. Refrigerator truck (also called refrigerator wagon, refrigerated truck, refrigerated boxcar, freezer vehicle, freezer wagon, temperature controlled truck, refrigerator car, preservation vehicle) is used to carry perishable stuff at specific temperatures. Refrigerator Trucks,cold food transportation truck, refrigerated van, frozen truck, freezer truck, truck with refrigerator CHENGLI SPECIAL AUTOMOBILE CO.,LTD , https://www.clwcntruck.com
The cooling device could be of famous brand such as Carrier, Thermoking--
There are two types of power driving ways - one is powered by vehicle engine through PTO, the other is driven by a separately carried power unit.
According to the transport stuff category (fresh or frozen), there are two main lowest temperature unit (-5°and -16°) for your option.
We use high quality van body for temperature reservation. The box surface material could be fiberglass,aluminum or stainless steel. The padding material is polyurethane foam that has super temperature preservation ability with varieties of thickness options.