How to identify whether a napkin contains phosphor? How to buy?

A simple tip: "One look, two photos, three burns, four dips in water".

One look: Look at the small particles on the paper towel. The national mandatory standards stipulate:

The number of particles in one square meter of paper towel should not exceed 200. And mold spots can be seen everywhere after the inferior paper towel is opened. The products produced by pure wood pulp generally have good uniformity, delicate wrinkles, good feel to the touch, no powder, no hair, good strength, and toughness when torn, on the contrary, poor tissue paper is easy to lose powder, hair and slag.

Second photo: take a photo with a money detector. Fluorescent-infused paper will cause the money detector to sound a warning sound. Under ultraviolet irradiation, the color of the paper with fluorescent agent is particularly bright and dazzling, which is a whitish bright blue; The color without fluorescent agent is mild, and the color is slightly purplish-red.

Three burns: burn with fire. It is to take a palm-sized paper towel and burn it, where there is less primary fiber, and the ash is charcoal-like black, it can be judged to be a recycled paper material; High-quality paper towels that are not mixed with other harmful substances leave very little ash after burning.

4. Dip in water: Immerse in water. Generally, the paper produced from pure wood pulp retains its original shape even if it is soaked in water, while the inferior toilet paper scatters when it sees water and is basically impossible to pick up.

We must choose large well-known enterprises when purchasing, such as Hebei Jifa Paper, as far as I understand, Hebei's paper industry is awarded the title of "North China Household Paper Industry Base", its brand paper is made of 100% virgin wood pulp, the new Wanjia series of "Butterfly Love Flower" and "Flower and Bird Han Yun" are upgraded in terms of toughness, really highly recommended!

It seems that if you shine it with ultraviolet light, or in a simple way, there must be something wrong with a very white paper towel. Adding fluorescent agents is not good for the body.

Detection method for identifying paper towels with or without fluorescent agents:

Step 1: It can be detected with a violet flashlight, which is specifically used for fluorescent agent detection. As shown in the figure below:

Step 2: Turn on the violet lamp, use the light source to illuminate the paper towel, if the light of the paper towel is white, it means that the paper towel does not contain fluorescent, as shown in the figure below

Step 3: Under the irradiation of the violet light source, if the light of the tissue is obviously bright blue, it contains fluorescent, as shown in the figure below

It can be detected by holding a tissue directly under your own flashlight.

Fluorescent brightener is a fluorescent dye and a complex organic compound that produces blue fluorescence, which makes the substance visible to the naked eye very white.

Test whether ** contains fluorescent brightener, open the package of **, and then put it under the "ZF-C three-purpose ultraviolet analyzer", use ultraviolet light** to see if it will emit bright blue light, if so, indicate that ** contains fluorescent agent.

If you don't have an ultraviolet analyzer, you can use an ultraviolet flashlight, an ultraviolet money detector pen, etc.

Fluorescent-containing ** shows a very large area of bright blue when irradiated with ultraviolet light. If you touch the liquid slightly, it will adhere to the fluorescent agent ingredients, and if you take it, you will also have fluorescence. After rinsing your hands with water three times, the fluorescent agent on your hands still emits a strong bright blue light under ultraviolet light, and it is hardly washed off. Wash it with hand sanitizer 3 times, and your hands also emit blue light after irradiation, but the effect is slightly better than that of clean water. Washing with a facial cleanser is almost as effective as a hand sanitizer, but it does not completely remove the fluorescent light that remains on your hands.

Ultraviolet light can be irradiated to see a special reflection, which can be used to detect.

Many consumers buy paper towels to pursue "the whiter the better", in such a market demand, manufacturers will try their best to improve the whiteness of the paper, and if no chemical additives are added, it can only be produced with good wood pulp, but it is expensive, in order to save costs, manufacturers will naturally add some substances such as fluorescents, softeners, etc., so as to ensure the color of the paper.

It is reported that fluorescent substances can cause cell mutations, and these harmful substances will become potential carcinogenic factors once they enter the human body. Not only toilet paper, but also low-quality paper cups contain such a substance, which is blue under fluorescent light, and the darker the color, the denser the fluorescent substance.