What are the common materials of disposable paper cups?

The common materials of disposable paper cups are virgin pulp paper, virgin wood pulp paper, virgin wood pulp, white cardboard.

Primary pulp refers to pure primary fibers, which can be divided into wood pulp, grass pulp, cane pulp, cotton pulp, bamboo pulp, reed pulp, etc. Primary wood pulp is also a kind of primary pulp.

Is there a coating on the surface of disposable paper cups? Is it harmful to human body?
The surface of paper cups is usually coated with PE film, which is non-toxic and feels like wax, with little water absorption, so it is often used as waterproof material.

In addition, PE film needs to reach 120℃ before it starts to melt, the boiling point of water is 100℃, so the coating on the surface of disposable paper cups is harmless to human body.

The difference between double-layer PE lamination and single-layer PE lamination?
Single-layer lamination refers to PE lamination on one side of the paper cup (usually on the inner side), which is the more common lamination method for disposable paper cups.

Double-layer lamination refers to PE lamination on both sides of the paper cups, which is commonly used in milk tea cups, coffee cups, cold drink cups, etc. Double-layer lamination can prevent the cold drink from condensing water on the outside at low temperature, which will lead to softening and deformation of the paper cups. Therefore, double-sided lamination of paper cups is more firm and durable, but the cost is also relatively high.

Why can't the pattern of disposable paper cups be printed all over？

"No printing on the mouth of the cup is consumer protection." Because the quality of the printing ink varies, in order to prevent the printing ink on the paper cup, when used into the mouth, the national standard for paper cups, paper cups cup mouth 15mm, the bottom of the cup 10mm within the pattern can not be printed.

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