What are the materials of plastic bags?

Polyethylene (PE), referred to as PE. It is a high-molecular organic compound formed by addition polymerization of ethylene. Polyethylene is recognized as a good material in contact with food in the world. It is non-toxic, tasteless and odorless, and meets food packaging hygiene standards. Polyethylene film, light and transparent, has the properties of moisture resistance, oxygen resistance, acid resistance, alkali resistance, general air tightness, and excellent heat sealability. Known as the "flower of plastic". It is the most important and most important material for plastic packaging printing.

30

2021/09

Green plastic concept

With the development of society and the continuous improvement of the economy, people have a new understanding of the concept of green plastics. While Shanghai Ruiyue Plastic Products Co., Ltd. is constantly improving its existing products, it is also actively working to develop new green Environmentally friendly plastics are actively responding to the country's call to recycle waste plastics as much as possible to make other garbage bag products.

30

2021/09

The testing of flexible packaging should not be ignored either

Flexible packaging occupies an important position in food packaging. As the Chinese government pays more and more attention to food safety, food terminal companies have higher and higher requirements for packaging quality, which makes flexible packaging companies have to treat them before they leave the factory. Carry out systematic and comprehensive testing to ensure the yield rate and maintain corporate reputation. However, most domestic flexible packaging companies only perform inspections on items that end customers care about, which is very unfavorable for the expansion of new customers. The author has been engaged in the quality inspection of packaging plastic films and bags for many years. Now, in conjunction with GB/T 10004-2008 "Plastic Composite Films and Bags for Packaging Dry Compounding, Extrusion Compounding", from the test precautions to the control of key inspection items, Make a systematic analysis to provide references for flexible packaging companies to understand product performance and master product quality.

30

2021/09

How to change food packaging from "package" to "design"

The food packaging industry has long been stuck in a cognitive quagmire, and the packaging is just wrapped up. After the packaging production line is gradually improved, the competition among packaging companies has become more intense. How to make good use of existing packaging equipment to make food packaging more valuable is a question that the entire industry is thinking about. Food packaging bags are not only a kind of packaging material, but may also bring different marketing benefits. In the future, food packaging bag companies will have a lot to do in the packaging design market.

25

2018/12

The new development of the flexible packaging industry: energy saving and environmental protection

In recent years, China's flexible packaging enterprises have been keeping up with the changes in market demand, adjusting their product structure in a timely manner, leaning resources toward benefits, and realizing product differentiation and structure diversification. According to forecasts by authoritative organizations, in the next five years, the global flexible packaging market will increase by 3.5% annually, and the output value is expected to reach 231 billion U.S. dollars by 2018. As a major packaging country in the world, China must keep up with the pace of development of the packaging industry.

25

2018/12

The most complete analysis of heat sealing failures of flexible packaging composite bags

Commonly used heat-sealing materials for composite packaging include CEP, LPPE, CPP, OPP, EVA, hot melt adhesives and other ionic resin co-extruded or blended modified films. The thickness of the heat-sealing layer material generally floats between 20-80μm. In special cases, there are 100-200μm, the same heat-sealing material, the heat-sealing strength increases with the increase of the heat-sealing thickness. For example, the heat-sealing strength of cooking bags is generally required to reach 40-50 Newtons, so the heat-sealing thickness should be above 60-80μm. The temperature is involved in the process of heat-sealing bag making, and how much temperature is controlled is displayed by a temperature meter. In the process of heat-sealing composite bag processing, the more precise the temperature gauge is, the better, and the error range and setting value should not exceed ±5℃. The heat sealing temperature has the most direct influence on the heat sealing strength, and the melting temperature of various materials directly determines the minimum heat sealing temperature of the composite bag.

25

2018/12

< 12 >