Four types of paper commonly used in food packaging paper bags
Nowadays, due to the plastics restriction order issued by the country and the growing demand for health and environmental protection, green and environmentally friendly paper packaging is widely used in people's daily life. For example, food-grade paper packaging applications, food packaging bags are widely used, ranging from oil-proof paper bags and snack bags at food stalls, to food packaging, paper pads, and takeaway bags such as McDonald's KFC. And from the traditional style with a single color to the present, the style is diverse and the printing is exquisite. So, what kind of paper is used to make food paper packaging used in the food market?
When customizing food packaging bags, there are many types of paper that can be used, and four kinds are often used: kraft paper, coated paper, white cardboard, and offset paper. Different types of paper have different toughness, smoothness and aesthetics. When customizing paper bags, food packaging bag manufacturers will choose according to the purpose of paper bags and the characteristics of different papers to meet customer needs.
Kraft paper: It is made of coniferous sulphate natural color pulp, which has high strength, usually yellow-brown, in addition to light brown, cream or white. The thickness is between 80 grams and 120 grams. Kraft paper has a high tensile force, including single light, double light, stripes, and non-texture. It is mainly used to make environmentally-friendly portable paper bags for supermarkets, food take-out paper bags, chestnuts and other dried fruit packaging paper bags, envelope bags, file bags, medical record bags, etc.
White cardboard: single-layer or multi-layer combination made from bleached chemical pulp and fully sized. White cardboard has a smooth surface and firm texture. At present, the domestic market has a large market share with imported white cardboard. White cardboard is mainly used to make high-end exquisite handbags, packaging bags, gift boxes, business cards, etc.
Coated paper: The main raw materials are coated paper and coating. The pigment, adhesive and auxiliary materials are made into coatings, which are coated on the surface of cardboard with special equipment, dried and calendered, with a smooth and smooth surface, good printing performance, and a thickness of 70 ~ 250 grams. Labels, cartons, etc.
Offset paper: The paper surface is white and smooth, but the whiteness, tightness, and smoothness are lower than the coated paper. It is suitable for printing monochromatic or multicolor book covers, texts, inserts, pictorials, maps, posters, color labels And various packaging products, in recent years, it is also used to make dried fruit packaging bags such as chestnuts that are not demanding.
The above are the four types of paper commonly used in food packaging paper bags on the market.
