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Do you know what are the raw materials used in sanitary napkins and diapers?
The raw materials used in the production of sanitary napkins and diapers include surface material: non-woven fabric, core material: fluff pulp, highly absorbent resin (SAP), bottom material: breathable bottom sheet, etc.
There are many reports on the internet about fluff pulp, such as: fluff pulp causes cancer or fluff pulp is made from recycled raw materials. So, what is the real material of fluff pulp? Is it really harmful to humans? Here we will give you some information.
1. What is fluff pulp?
Fluff pulp is widely used in hygiene products because of its hydrophilic nature and its ability to trap liquids quickly. Rumors on the internet that fluff pulp is made from recycled sanitary napkins and toilet paper are alarmist. The raw material for fluff pulp is mainly coniferous wood, such as pine and spruce, which is a natural raw material. The pulp is produced through a process of pulping and bleaching, and in the production process micro-organisms, mosquitoes, foreign matters and other contamination are strictly controlled. In following packaging, transportation process will also try to prevent from environmental pollution.
2. The application of fluff pulp
Fluff pulp is used in two main forms in sanitary products. The first is that the fluff pulp is crushed and mixed with the highly absorbent resin SAP as an absorbent layer for sanitary products; the second is produced as dry paper, or air-laid paper, with the addition of the highly absorbent resin SAP to the dry paper to make an ultra-thin absorbent layer, or a combination of dry paper, non-woven fabric and SAP to make a composite core absorbent layer.
3. Bleaching process for fluff pulp
As mentioned earlier, fluff pulp is produced through pulping and bleaching processes, When it comes to bleaching, many people will be anxious or afraid, but there is no need to worry about that. Firstly, the bleaching of fluff pulp is done in a safe way, for example, elemental chlorine free and full chlorine free bleaching, which basically does not produce harmful substances after bleaching.
The pulp is washed several times after bleaching, so even if there are some chemicals, the residue in the pulp and the final product will be very small. The standard requires the content of adsorbable organic halogens in the pulp to be less than or equal to 5mg/kg, which is not enough to cause harm to the user, just like tap water or swimming pool water using disinfectants and the residual dose will not cause harm to the human body.
4. Whether fluorescent whitening agents are contained in fluff pulp
First of all, fluorescent brighteners are not needed in fluff pulp for sanitary products. Just in normal bleaching, it can be very white. Not only fluff pulp, but also non-woven materials do not require fluorescent brighteners.
There are rumors that fluorescent brighteners are added to fluff pulp and that fluorescent brighteners are carcinogenic. Fluorescent whitening agents have been researched and verified are not irritating, skin sensitizing or carcinogenic.
There are reports that sanitary napkins emit fluorescent light, does this mean they contain fluorescent brighteners?
Just because they fluoresce does not mean they are fluorescent whitening agents. Fluorescent substances are commonly found in nature, most commonly in fireflies, shrimps and crabs. Many common foods such as soy sauce, Pu-er tea, white wine, black tea and other fermented foods also fluoresce. Some raw materials in sanitary napkins, like adhesives, themselves emit fluorescence, which does not mean that fluorescent whitening agents have been added, let alone that they are harmful to humans. However, it is important to buy sanitary napkins from regular manufacturers with quality assurance. This is because formal manufacturers generally have strict quality control over raw materials and will give consumers more security.
To summarise: the raw materials for fluff pulp are based on natural coniferous wood and no recycled raw materials will be used. The production process of fluff pulp requires bleaching, but after several washes, it is not harmful to humans. Fluff pulp does not contain migratory fluorescent whitening agents, and fluorescent whitening agents themselves are not carcinogenic. As long as the hygiene products are produced by regular manufacturers, they are not harmful to your health and can be relieved to use.
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