Coating material resin melt film in contact with air during surface oxidation aging woven bags generate carbonyl aging, increase the adhesive ability. But the aging bags factory in Hebei, the high temperature causes the polyolefin resin, particularly polypropylene, thermal aging. Thus to choose a good thermal stability of the resin. Screen printing more suitable performance sets the color of text and monochrome originals crisp lines, also suitable for the performance greater contrast, clear layer of color originals. Special effects Carbon black bags by screen printing aging bags, make copies with a wealth of expression through rich chiaroscuro thick layer of ink and colors, textures and three-dimensional effects to fully express the original content. Aging bags, Xin Yu packaging, wholesale aging bags provided by Xiong Yu Xin plastic packaging plant. Aging bags, Xin Yu packaging, wholesale aging Xiong Xin Yu Plastic bags are packaging plant (www.xinyusl.com) (www.xinyusl.com) this year introduced a new upgrade, the above picture is for reference only, please call Tel or pictures on this page, for the latest information, contact: Wang Kai Lai.