Flame Retardant for Cotton

Cotton cloth is commonly used for clothing, but it is flammable in case of fire. Therefore, people explore flame retardant techniques to protect safety. Today, there are many main ingredients of Cotton flame retardants, but the common ones can be divided into organic and inorganic categories. Organic ones are most prevalent in phosphorus-containing compounds. Phosphorus is easy to react with cellulose in cotton, and phosphate is formed at high temperatures. In case of fire, it promotes carbonization of lignin, reducing the escape of flammable gases and inhibiting the spread of flames. Its commonly used ones, such as triethanolamine phosphate, quaternary phosphorus salts and phosphorus urea, can give cotton fibers flame retardant properties, and form a firm bond with the fibers, which is not easy to fall off after washing for a long time.
Followed by nitrogen-containing organic flame retardants, such as aziridine, melamine derivatives, etc. Nitrogen compounds decompose at high temperatures to form ammonia, which can dilute oxygen and flammable gases in fire environments, and cooperate with phosphorus-based compounds to enhance the flame retardant effect. At the same time, some boron-containing agents such as borax and boric acid can also be applied to cotton cloth flame retardant. The principle is that high temperatures decompose to form glassy substances, which coat the surface of the fiber and isolate the air to achieve flame retardant functions.
In addition, inorganic flame retardants such as chloride, alumina, antimony oxide, etc., although they can be used to improve the flame retardant level, their durability and skin-friendliness are inferior to organic compounds, so they are mostly used in combination with organic compounds. In today's world, more synergistic methods are used to combine phosphorus, nitrogen, boron and other elements, so that cotton cloth has both high efficiency, durability and low toxicity flame retardant properties.
The traditional method includes alum, salt and pulp, but now it tends to be modified by new polymer grafting, and the flame retardant components are embedded in the fiber molecular structure with covalent bonds, which not only improves the durability of flame retardancy, but also has no environmental risks.
In summary, the main components of Cotton flame retardants are mainly phosphorus, nitrogen and boron-containing compounds, supplemented by inorganic materials. The proportions vary, and each has its own advantages and disadvantages. Only by measuring safety, durability and environmental protection, innovation is introduced, and the protection of cotton cloth between fires is the key to public security and disaster prevention.

The fire resistance of cotton cloth should be covered with flame retardant as the priority. Flame retardants are also a wonderful product of chemistry, and their use should avoid the flammability of cotton. Where flame retardants are used, the first thing to choose is the category. In this world, they are all phosphorus-based, nitrogen-based and halogen-based, which should be determined according to actual needs. The method is multi-ended. Take the impregnation method as an example. The detailed steps are as follows:
First, wash the cotton cloth to remove grease and dust, so that it can receive the medicine evenly. Wash and dry it for later use. Next time, take an appropriate amount of flame retardant, dilute it with clean water according to the formula, stir and mix well, so that the concentration of the liquid medicine is moderate. If the amount is not enough, it cannot be flame retardant, and if it is too much, it will damage the fabric quality. It is appropriate to weigh it.
Then, immerse the cotton cloth in the liquid in full width, and it can take a few minutes to allow the flame retardant to penetrate the inside and outside of the fiber. Or pick it up and squeeze it lightly to ensure that the liquid content is uniform and does not drip. The cotton cloth is placed in a cool and ventilated place to dry for the second time. Avoid sun exposure, lest its ingredients fly away. When it is completely dry, the flame retardant effect has been achieved.
Or if there is a spraying method, the flame retardant can also be installed in a watering can and sprayed evenly on the cloth surface. Once it dries, the effect will also be obtained. However, this method only acts on the surface. If deep protection is required
After using flame retardants, it is advisable to conduct a simple flame retardant test. It is advisable to take a short section and test it with fire. If you see fire and self-extinguish, if it does not spread, it is a wish. If not, repeat the method.
This is the main method of flame retardant cotton cloth. You must choose flame retardants carefully and strictly abide by the operating rules. If you are not careful with medical prevention, it will harm the cotton and damage your health. It cannot be ignored. And commonly used flame retardants are slightly harmful to the human body. If you use Biyi to clean your hands, you must not import them.
Although the flame retardant effect is good, it is not perfect. To completely prevent fire, it depends on personnel to be vigilant against each other.

Cotton is soft and delicate, its nature is warm and moist, and the craftsmanship of the past dynasties is salty to the touch. However, in recent times, fires have been particularly serious. Most people take cotton spinning as their clothing, and they are concerned that it is easy to burn, so they paint it with flame retardants. However, flame retardants are different from cotton, and it is against nature when they are applied to cotton bodies. It is asked by the public: can flame retardants attached to cotton damage its flexibility and change the feeling of touch?
Among flame retardants, large amounts of organophosphorus, nitrogen, halogen or boron compounds, etc., the reason is that ions penetrate into cotton fibers to inhibit the chain reaction of combustion, making it difficult to prolong combustion, or decompose at high temperatures, releasing non-combustible gases, isolating oxygen, and cutting off fire. However, the method of flame retardant application is mostly dipping, spraying, coating or copolymerization. After applying the medicine, the surface of the cotton fiber is covered with a layer of micro-film, or the molecules of the medicine penetrate deep into the warp and weft, resulting in the filling of the natural gaps between the fibers, and the flexibility is slightly damaged.
According to the temperature and humidity changes at four o'clock, the raw cotton has the opportunity to breathe, absorb moisture and stretch. If the flame retardant sticks to the table, the fiber will no longer be flexible every time it is bent, and if it feels slightly stiff. Or the moisture absorption is damaged, and the feel is slightly astringent. And the texture of the flame retardant itself may be sticky or slippery, which is very different from the slippery and soft of the raw cotton. After using it for a long time, the surface layer will peel off and become more rough. However, with the advance of technology, careful selection of polymer or nano-type flame retardants, combined with the essence of fibers, may greatly reduce its discomfort, but in the end it will not affect it at all.
To be sure, cotton is coated with flame retardant finishing, and the feel may vary, which is generally divided into three aspects: softness loss, moisture absorption sluggishness, and rough surface. If you want to be kind and take into account safety and comfort, you should choose a good method to weigh the pros and cons. If you apply it with a soft finish, or with a leaven treatment, or you can ease its stubbornness. In the end, it is difficult to combine safety and comfort. Adopting flame retardant will eventually affect the feel of cotton slightly. Although it is subtle and difficult to detect, it will be self-aware for a long time. It is for the sake

Cotton fabrics are commonly used materials for clothing, and their flammability is a known problem. When people treat their problems, they use flame retardants to apply them. When they are first applied, their effect is very good, and they will not burn in case of fire, or self-extinguish. As for the continuation of flame retardant effect, it is actually related to the type of flame retardant, application method, and use environment. Flame retardants sold in the market are mostly washable, and they are said to be able to survive multiple washes. Experiments have proved that the flame retardant effect of high-quality flame retardants applied to cotton fabrics can reach more than 20 washes, and the commonly used ones can be maintained for about ten to fifteen washes; in case of rain, sun exposure, or contact with acid and alkali substances, the flame retardant performance may be impaired. The ancients said: "Things have a beginning and an end, and things have a beginning." Although the function of flame retardants is based on ensuring safety, it is long-term and will eventually be consumed at any time.
If you want to prolong the effect, you need to wash it correctly according to the instructions. Do not use strong bleach, excessive rubbing, and high temperature drying. There are also high-end flame retardants prepared by nanotechnology, which can adhere more firmly to the fibers and make the flame retardancy last longer. However, the cost is also high, and it is not commonly applied for civilian use. Even if military, special protective clothing, or blended modified cotton fibers are flame retardant in themselves and do not rely on the help of chemicals, their effect can be accompanied by the end of the fabric's life.
Therefore, the durability of the flame retardant effect of cotton products depends on the quality of the flame retardant, the reliability of its fixed fibers, and the gains and losses of subsequent maintenance. It is advisable to check the product description carefully at ordinary times and maintain it according to regulations to prolong its flame retardant time. If there is any damage, the flame retardant should be reapplied or replaced in time. In short, flame retardant is a protective aid for the body, so you should not be unprepared and always worry about it, so you can be safe from fire.

Cotton is a natural fiber, flexible and moist, but it is flammable in fear of fire. Therefore, when making clothing and utensils, it is easy to cause inflammation and damage the safety of users. Later generations of craftsmen were concerned about the disease, so they decorated it with flame retardants, hoping that it would subside in case of fire and not extend to the body. However, there are many types of flame retardants, and the chemical composition is interesting. Its safety in the human body and the environment is really negotiable.
Flame retardants include phosphorus, nitrogen, halogen and inorganic salts. Halogen flame retardants, such as bromine and chlorine, although they can effectively suppress inflammation, they may have toxic residues for a long time and are prone to persistent organic pollutants. Such substances can fall off with the fiber, and the dust particles flow into the human respiratory tract, or penetrate through the skin, causing damage to the physiology for a long time. Or flow into the stream with washing, involving aquatic organisms, damaging their reproduction, polluting water bodies, and causing ecological disasters. Phosphorus and nitrogen flame retardants are slightly less toxic, but if they are poorly designed and used too much, they will inevitably harm the living. If there are chemicals containing formaldehyde, they can cause skin allergies, and those who suffer from lung diseases for a long time will not be ignored.
Inorganic flame retardants, such as aluminum hydroxide and silicate, are natural minerals, insoluble in water, easy to be physically desorbed, and not easy to last. However, the toxicity is lighter than that of organic compounds, and it is less harmful to the human body. However, when applied in large quantities, it may still affect the soil structure, hinder waste treatment, and put pressure on the environment. Nowadays, with the advance of science and technology, bio-based flame retardants are gradually available. They are derived from nature, decompose rapidly, and have little load on humans and nature. However, there is still little promotion.
According to the current application concept, flame retardant cotton spinning products should be selected for compliance products. National standards stipulate that flame retardant residues must be below the limit, the production process must be properly managed, and the finished products must be fully washed to reduce damage. Users are often washed, ventilated and ventilated, which can also reduce toxic damage. The integration of heaven and earth chemical industry, careful to use, choose good products and use them with caution, which can ensure people's well-being and a suitable environment.
To sum up, flame retardants have a good reputation in the battle of cotton cloth. If used excessively, it will be greedy and effective, or it will endanger the human body or damage the ecology. However, the law is natural, prudent and standardized, and moderately developed. It can be both safe and beneficial to the world and harmonious.