来源:   日期:2019-10-14


  The name of the paper bag comes from the design of the opening, some of which are hand rolls. Packing products with more than four layers of kraft paper, such as cement, fertilizer, etc. Different types of paper bags are used according to the nature of the items to be packed. Other paper bags: file bags, envelope bags, handbags, root guard bags, four-layer paper bags, medicine bags, clothing bags, food bags, shopping bags, gift bags, wine bags, cement bags, feed bags, wax paper bags, fertilizer bags. The design specifications and sizes, including the thickness of paper bags, have different requirements. Therefore, we should customize them according to the actual situation and get twice the result with half of our efforts. The purpose of economic application is to reduce material savings, green environment protection, enterprise investment, and provide safer and customized paper bags, which can balance the needs of economy and marketing.
  Jinan Handbag Printing
  Jinan Printing Factory believes that the waterproofness of oil-proof paper bag printing technology is often directly related to the quality of paper. There are three ways to distinguish the quality of paper:
  1. Tearing method: tear paper bags horizontally, the stubble is wood pulp paper with high strength; if there is no stubble in the tear, the straw pulp paper or wood pulp has less composition and low strength.
  2. Hand rubbing method: Soak the paper bag in water for a period of time, then rub it with both hands after taking it out. It shows that the paper is good without wool or rubbing resistance.
  3. Burning method: After burning, the paper ash is good in shaping but not in shattering; the paper ash is bad in shattering but not in shaping.
  Paper is a recyclable and reusable resource. The main raw materials of flyscreen paper bags are plant fibers. In addition to cellulose, hemicellulose and lignin, there are other components with less content, such as resin, ash and so on. In addition, there are auxiliary ingredients such as sodium sulfate. In addition to plant fibers, paper also needs different fillers according to different paper materials. The usual plastic bags made of polyethylene are made from petroleum, which used to be our scarce energy source. In contrast, paper bags consume trees as a renewable resource. Its own characteristics of biodegradable and recyclable applications are naturally labelled green. We also have a green earth from personal consumption.
  以上是济南手提袋印刷厂家为大家介绍的相关内容,本文来源:http://www.jnurs.comThe above is the relevant content introduced by Jinan Handbag Printer. This article is from