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Materials and uses of kraft paper in writable kraft paper tape

Article provenance:未知 Popularity:Time:2020-07-31 09:02
The introduction of Eco friendly writable kraft paper tape manufactures that,
The main component of kraft paper: softwood kraft pulp; contains long fiber and short fiber.
The long fiber used in papermaking in China is generally imported. However, the largest producing area is Chile, as well as Finland, the United States, Russia and Sweden.
Because wood pulp can be directly made in foreign countries, and when China imports wood pulp, in order to facilitate transportation, all the wood pulp blocks are purchased and then dissolved during paper making. In these processes, a lot of water will be lost in wood pulp.
Therefore, domestic paper is not as good as imported paper in terms of tensile strength, so China is a big papermaking country, not a paper-making power.
What are its main uses?
1. Used to package food (white kraft paper)
2. Make handbags, hand bags and shopping bags (100g-200g is often used for application)
3. Make envelope bag and file bag (the weight of application is usually 70g, 80g, 90g, mainly below 100g, preferably no more than 120g)

Whether kraft paper can be used as food packaging, the main test is whether the paper is added with fluorescent agent. Fluorescence is a carcinogen, which will cause cell mutation and carcinogenesis after entering the human body for a long time. Generally, the white kraft paper without adding is the original white kraft paper, and its whiteness is no more than 85 degrees, generally 82 degrees and 83 degrees, which can be used as food packaging. (011 white kraft paper has passed the IMI food certification and QS certification); after adding, the whiteness can reach more than 90 degrees.

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