PU Resin For Synthetic Leather
PU resin, also known as polyurethane resin, is widely used in the production of synthetic leather. Synthetic leather, also referred to as faux leather or artificial leather, is a man-made fabric that imitates the appearance and feel of genuine leather. PU resin is a key component in the manufacturing process of synthetic leather, as it provides the material with its durability, flexibility, and water resistance.
The process of producing synthetic leather involves coating a fabric substrate, such as polyester or nylon, with a layer of PU resin. This resin is typically applied in liquid form and then undergoes a curing process to solidify and bond with the fabric. The resulting material has a leather-like texture and appearance.
PU resin offers several advantages for synthetic leather production. It has excellent abrasion resistance, making the synthetic leather more durable and long-lasting. It also provides flexibility, allowing the material to be easily shaped and molded into different forms. Additionally, PU resin offers good water resistance, preventing the synthetic leather from absorbing moisture and becoming damaged.
Moreover, PU resin can be customized to achieve different finishes and textures, such as smooth, grainy, or embossed patterns, depending on the desired aesthetic. It can also be colored in various shades to mimic different types of leather. This versatility makes PU resin a popular choice for synthetic leather manufacturers.
Overall, PU resin plays a crucial role in the production of synthetic leather, providing the material with its desirable qualities of durability, flexibility, and water resistance.
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Comparative experiment on the cultivation of maize air-suction no-tillage precision seeding by the Ministry of Agriculture
[ China Agricultural Machinery Industry News ] On the morning of June 13, 2017, the Ministry of Agriculture corn air suction no-tillage precision seeding technology comparison test was held in Zhengding County, although the sky was raining, but the scene was crowded. At the meeting, Jiang Yijun and Cheng Shengnan, engineers of the Agricultural Machinery Extension Center of the Ministry of Agriculture, Shi Jiayi, the director of the Agricultural Mechanization Technology Extension Service Station of Hebei Province, Kang Yanjun, deputy director of the Agricultural Animal Husbandry Bureau of Shijiazhuang, Xu Ping, the deputy director, and Li Hui, deputy director Liu Hongya, director of the Agricultural Mechanization Promotion Station of Shijiazhuang City, Guo Rongzhen, the deputy stationmaster, and Sun Jiankui, the director of the Agricultural Mechanization Promotion Station of Zhengding County, nearly 100 people.
Comparative experiment on the cultivation of maize air-suction no-tillage precision seeding by the Ministry of Agriculture
Mater Macc air suction precision seeding machine of Italy Mark Company, air suction type 6 line corn precision fertilizer planter of Hebei Agricultural Haha Machinery Group Co., Ltd., 2BFQ-6 type suction of Hebei Zhongyou Electromechanical Equipment Co., Ltd. Precision seeders and precision seeders from Maschio Gaspard Industrial Group participated in the comparative test.
The comparative test was divided into two parts, which were compared in terms of seeding uniformity, uniformity of seeding, uniformity of fertilization, uniformity of fertilization, stability of sowing depth, stability of each row, and fuel consumption.
The test method is as follows: the fertilizer and the seeds are discharged from the planter by rotating the ground wheel of the planter, and then the fertilizers discharged from each row are collected for weighing and the number of seeds discharged from each row is determined to calculate the seeding uniformity and the seeding amount of each row.
Subsequent field operations of the planter were used to determine the uniformity of sowing and fertilization stability.
Hebei Nonghaha Machinery Group Co., Ltd.'s air suction type 6-row corn precision fertilizing planter adopts a new type of air suction metering device with seeding tray + guide wheel. The adjustment mechanism is provided with scale bars and pointers, which is convenient for reaching the depth of each line. The wide rubber profile wheel is used, the tread is wide, the covering effect is good, and the rubber material is easy to remove soil.
Hebei Zhongyou Electromechanical Equipment Co., Ltd.'s 2BFQ-6 air-suction precision seeding machine adopts high-tech electronic monitoring system, which can effectively prevent seedless seedling problems and improve seeding quality. The machine also has a longitudinal traction device, which can be easily transferred. Land plot.
The Mater Macc air-suction precision seeder from Italy Mark can meet the seeding requirements of various crops. It can flexibly control the depth of seeding and fertilization, the amount of fertilizer applied and the plant spacing through the adjustment of the gears on both sides. The operation is simple and the seeding effect is good.