Woven the distance from the die mouth, because the inertia weight and traction speed die due to causes melt flow properties can not be good plastic bag factory in Harbin, in order to avoid heap film or film thickness longitudinal uneven, so resin melt index can not be too high. Polypropylene flat yarn feed a melt index of 2 ~ 6g / 10min to a suitable value, it is not appropriate for the coating, the flow is too slow, prone to the phenomenon of uneven thickness. Currently, the coating material and the second substrate different Beijing Coal plastic bags factory, coating materials for functional requirements are also different film plastic bags, so we had to blend modified based special coating material . Special coating material, although the scope of small, but highly targeted, can be applied to the coated substrate and to obtain specific properties it needs. Such as low temperature coating materials, coating materials, such as anti-aging. Beijing Coal plastic bags factory | Xin Yu Package (certified) | plastic bags provided by Xiong Yu Xin plastic packaging plant. Xiong Yu Xin plastic packaging plant (www.xinyusl.com) (www.xinyusl.com) Hebei Baoding, composite materials packaging products leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum Limits to meet customer needs. Yu Xin leader in packaging with the staff warmly welcome all inquiries negotiations to create Xin Yu packaging better future.