The difference between single and double coated paper cup

Why don't paper disposable paper cups get wet as easily as ordinary paper?

Paper cup machine manufacturers tell you,Disposable paper cups are made of paper, but they are not as easy to get wet as ordinary paper. Even if it is soaked in the water in the cup for a long time, it still does not penetrate, which is why in the end?

If you look closely at the paper cup, you will find that the paper used in the paper cup is different from ordinary paper. There is a smooth coating similar to plastic film on the inside of the paper, which prevents water from penetrating into the paper. This paper is called "coated paper".

PE coating: that is, the base paper (white paper) is coated on the PE film with the coating machine, and the paper on one side of the coating is called single-sided PE coating paper; Coated on both sides is called double-sided PE coated paper.

First, the difference between single pe and double pe.

Single-sided PE coated paper cup: Paper cup made of single-sided PE coated paper. Its appearance is characterized by: the side of the paper cup containing water has a smooth PE coating.

Double-sided PE coated paper cup: Paper cup made of double-sided PE coated paper. Its appearance is characterized by PE coating on the inside and outside of the cup

Second, different uses.

Hot cup with a single PE coated paper cup, the cup has a layer of PE coated paper can be slightly heat insulation, the most important is to prevent water seepage, so that the hot drink will not leak out.

Cold cup with double-sided PE coated paper cup, cold cup outside that layer will have condensed water vapor, will make the cup deformation and soft, plus a layer of film, can play a role in increasing hardness and shaping.

Third, the quality is slightly different.

Single-sided PE coated paper cup is produced by single-sided PE coated paper cup, and double-sided PE coated paper cup is produced by double-sided PE coated paper cup. Compared with single-sided PE coated paper cup, double-sided PE coated paper cup has better quality, longer service life, higher cup height and higher relative cost.

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