The company produces insulation bags, vacuum bag, aluminum foil bags, inflatable bags, shopping bags, shaped bags, woven bags, food bags, stand-up pouches, nozzle bags, bedding bags, garment bags, children's bags, thermal underwear, heavy package bags, valve bags, slip bags, cosmetic bags, zipper bags, ziplock bag, gift bags, industrial packaging bags and other plastic bags. A production process, and printing documents to determine Size: About vest bag specifications, similar, non-uniform specifications can be customized according to customer requirements. General specifications such as: 20 * 32cm, 25 * 40cm, 30 * 48cm, 35 * 55cm. Standards based on the thickness of the plastic bag so that a monolayer of not less than 0.025mm. According to the document printed sample, or the customer to design a good factory Beijing plastic manufacturers, took the design will also allow manufacturers. 2, according to the number of orders were blown film, blown film refers to the plastic particles heated to melt through the extruder food bags manufacturer, and then through a plastic blower blown plastic film processing technology. Plastic vest bags made of high density polyethylene (HDPE, also known as the low-pressure feed) as raw materials. 3, plastic bags printed vest is generally relatively simple, the color is not complicated, simple and concise. 4, and then followed by sealing and cutting. 5, sealing material is printed volumes were sealed and the hollowing out of the plastic bag is the final step in forming the vest pocket. 6, forming - packaging - shipping. The company produces insulation bags, vacuum bag, aluminum foil bags, inflatable bags, shopping bags, shaped bags, woven bags, food bags, stand-up pouches, nozzle bags, bedding bags, garment bags, children's bags, thermal underwear, heavy package bags, valve bags, slip bags, cosmetic bags, zipper bags, ziplock bag, gift bags, industrial packaging bags and other plastic bags. The company will be better service, high quality products to customers return, willing to work with the industry to seek common cause and common development. Welcome new and old customers to negotiate! ! ! ! ! ! ! 1. The quality of the air pump test: the pump nozzle on his face tight, then pumping, it means if they feel there is a suction pump is good. 2. If there was evacuated bag Guzhang phenomenon, in addition to sealing lax outside, on the one hand, a bag of quilts and other things that will be deflated, will reduce the degree of vacuum; on the other hand, from a physics point of view, then a dense material is voided, due to the negative pressure, the air molecules with the passage of time will "squeeze" the bag, the vacuum effect will gradually decrease. 3. leather, feather products can be placed in the product storage bag manufacturer in Tianjin, but do not fully compressed. 4. Before the laundry into the collection bag, wrapping paper or bags should be removed otherwise it will affect the compression effect. 5. Please put into the collection bag full of clothes to dry. Without the use of pest control agents, preservatives, etc., which will cause discoloration of items to be acquired and deterioration. 6. The bag has a small crack or a bad mouth can be an ordinary cement broadside transparent tape on both sides, fit tightly to it. 7, to prevent excessive moisture bag left in a vacuum bag, if somewhere the temperature is relatively low, it would condense into water droplets. Plastic food bag manufacturers _ _ Shen Hai packaging (certified merchants) provided by Xiongxianshenhai packaging color Limited. Xiongxianshenhai packaging color Limited (www.shenhai6688.com) (www.shenhai6688.com) is specialized in the "cooler bag, shaped bag, vacuum bag, heavy bags, liquid packaging bags, specialty bags," the business, Companies adhering to the "honesty, hard service" concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Zhang Zhiwei.