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

Paper cup machine manufacturers tellyou,Disposable paper cups are made of paper,but they are not as easy to get wet as ordinary paper.Even if it issoaked 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 wil find that the paper ued in the paper cup is diferent from ordinary paper. There is a smooth coating similarto plastic flm on the inside of the paper, which prevents water from penetrating into the paper. This paper is caled "coated paper".

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

Single-sided PE coated paper cup: Paper cup made of single-sided PE coated paper. its appearance is characterized by: the side ofthe 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

2.Second,diferent uses.

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

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

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-sidedPE coated paper cup. Compared with single-sided PE coated paper cup, double-sided PE coated paper cup has better quality,longer service life, highercup height and higher relative cost.