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What are the main ingredients of Flame Retardant for Cotton Fabric?
Cotton cloth is easy to burn in case of fire, so there are flame retardants in the world to control fire. The system of flame retardants is chemically based, and there are many types. If it is used for cotton cloth, it is mainly fibrous, and it should be firmly combined with the fiber without damaging its color and feel. Its main components are often divided into inorganic and organic categories.
Inorganic categories, mostly phosphorus, nitrogen and boron compounds. Phosphorus series, are metaphosphates, phosphates and their derivatives. Sodium metaphosphate and triammonium phosphate, which enter the cotton fiber orifices, decompose when heated, release phosphorus elements, form polycondensate phosphate films, and block oxygen. Nitrogen series, such as guanidine sulfate, melamine, etc. Interacts with cotton, releases nitrogen at high temperature, dilutes oxygen in the air, and inhibits the spread of flame. Boron series, common borax and boric acid, can reduce the combustion temperature and form a glass-like film on the surface of the fiber, so it can resist inflammation. Many of these three are used, especially phosphorus and nitrogen are preferably used together to synthesize the "phosphorus-nitrogen synergistic" effect, which can be extinguished in case of fire.
Organic flame retardants, mostly phosphonic acid esters, halogen compounds, etc. Phosphonic acid esters easily penetrate fibers, bond with their hydroxyl groups, and are washable and durable. Halogens, due to environmental protection limitations, have become less and less used in recent years, and are prone to toxic gases when burning. However, their flame retardant efficiency is excellent, although gradually eliminated, the old method still remains.
Modern scientific and technological progress, and nano-composite and bio-based flame retardants. Nano-oxides are dispersed between fibers, achieving both physical barrier effect and chemical barrier. Bio-based ones, such as phytogenic polysaccharides, chitosan, etc., can be carbonized into layers during combustion to protect their fibers.
However, when making flame retardant cotton fabrics, the purity of the ingredients, chemical stability, environmental friendliness and human safety must be weighed. Nowadays, environmental protection is popular, so more halogens are discarded and heavy phosphorus and nitrogen are used; or new non-toxic and harmless materials are used, supplemented by physical barriers, in order to last for a long time.
Overall, the main components of cotton flame retardants are phosphorus, nitrogen, and boron salts, which are most commonly used, supplemented by organic phosphonic acids and nano-new materials. The principle is to cause the fiber to generate carbon in case of fire, or to isolate oxygen, or to degrade at a temperature, so that the fire will self-extinguish. Although the formulas of each family are different, their origin is not far from this. In this way, cotton cloth is soft and white, and can resist fire in the event of an accident.
How does Flame Retardant for Cotton Fabrics affect the feel and breathability of cotton fabrics?
Cotton fabrics are soft in texture, good in moisture absorption, and are prized by people. However, they are flammable in case of fire, so it is urgent to treat them with flame retardants to make them have flame retardant properties. Although flame retardants can be applied to cotton fabrics, although they can reduce fire, they must have an impact on the feel and breathability. Only by distinguishing their effects can we balance practicality and comfort.
There are many kinds of flame retardants, and the common ones are phosphorus, nitrogen, and halogen. The application method is either dipping, spraying, or copolymerizing into the fiber. Cotton fibers are either re-adsorbed on the surface, or penetrate into the fiber gap, and the surface layer of the yarn is then covered with a film, or a deposition is generated. After this treatment, the fabric feels often changes. Its softness is reduced, the smoothness is poor, and the chemical agent affects the friction between the fibers, making it astringent and stagnant. It may feel sticky or heavy, and it is obviously different from the original cloth when touched by hand.
The breathability of the fabric is also damaged. Flame retardants fill the fiber gap more often, hindering air circulation, resulting in a decrease in the air permeability of the fabric. Cotton cloth can ventilate and remove moisture. After applying flame retardants, the permeability is limited. If the dose is too heavy or the application is uneven, the air barrier will increase sharply. However, different flame retardants have a dramatic or slow effect on the air permeability, and the application process can also be adjusted. High-quality formulas and exquisite craftsmanship can detract from the comfort index, but there is still a gap compared with untreated cotton cloth.
Overall, flame retardant treatment has a significant effect on ensuring safety, but it makes cotton fabrics feel astringent, soft and impaired, and air permeability decreases. To take advantage of both, it is advisable to choose a good method and a good agent, and work meticulously to weigh the flame retardant effect and fabric comfort, and gradually optimize it.
Are Flame Retardants for Cotton Fabrics Harmful to Human Health?
Cotton cloth is flame retardant, and modern technology often uses chemical methods to apply the agent, so that it will not burn in case of fire, and it is dangerous to security. However, the substances applied to the medicine are mostly phosphorus, bromine, or antimony. It is not said that these substances are toxic in case of fire. In fact, they are usually in contact with human skin, or the resistance to washing is not strong, and there is a risk of infiltration into the body. Experiments in the world mean that if the skin is covered by the agent for a long time, it can cause allergic itching, sensitive or redness and swelling, and it will not heal for a long time. What's more, the chemical structure of the agent is extremely complex. After entering the body, it can interfere with hormones, or accumulate between the liver and kidney. Over time, it will inevitably cause disasters to breed. When incinerated, its volatile gases are mostly toxic, mild ones are uncomfortable, and severe ones can damage the lungs and brain. Especially children, pregnant women, and the infirm, the victims are especially rapid. In Europe, the United States, and Japan, some flame retardant chemicals have been listed as suspected carcinogens and metamorphoses, and the ban is gradually being tightened. Although people wear this clothing, they enjoy the safety of fire, but also worry about the subtle influence of toxins, which cannot be ignored.
However, the benefits of flame retardancy are indispensable in disaster relief, fire protection, etc. In clothing, if you can use physical methods such as tight weaving to cause self-flame retardancy, or choose natural flame-suppressing materials such as bamboo and hemp, the health damage will be lighter. It can also be washed frequently and changed quickly to reduce the residue of the drug. It is necessary for the cloth maker to choose materials carefully and use chemicals with caution. Do not ignore people's safety only for utilitarianism. Users should also distinguish its benefits and harms and weigh whether to take it or not. Covering medicine can save the emergency, but it is not a normal way. If it needs to be used, it is necessary to check the skin changes carefully. If there is any abnormal condition, it should be avoided.
Cotton cloth is flame retardant now. If it is not completely harmless to people, it is still being scientifically researched. There may be a safer way in the future, so it should be used with caution now. In conclusion, flame retardant agents are not completely harmless, and people should know it to protect themselves.
What is Flame Retardant for Cotton Fabrics?
Cotton cloth is widely used by the world because of its softness and moisture absorption. However, it is flammable, especially harmful, so flame retardants are often applied for protection. There are many types of flame retardants, including organic phosphorus, halogens, nitrogen-based and silicon-based, each of which has a wonderful use. Its flame retardant modification of cotton cloth is mostly phosphorus nitrogen or phosphorus silicon, and the cover is more firmly bound to the fiber structure, so it is not easy to peel off. However, when it comes to the washing resistance of flame retardants, it is necessary to look at the chemical bonding mode of cotton fibers.
If only physical adhesion is applied, although it is effective for a short time, after repeated washing, the flame retardant is easily initialized by water flow and peeled off by mechanical friction, and its effect also decreases with the number of washing times. And cotton fiber hydrophilicity is strong, easy to react with surfactants in water, so that flame retardant molecules fall off from the fiber surface. If chemical bonding is adopted, such as cross-linking reaction to form covalent bonds between flame retardant molecules and fiber hydroxyl groups, its firmness is significantly enhanced, and the washable performance is greatly improved. Modern processes are mostly based on 3-hydroxymethyl-1,3,5-trichloro-1,3,5-triazine, or biguanidine, polyphosphate, etc., in order to improve the washable flame retardant effect.
However, the maintenance of flame retardant performance is still limited by the number of washes. Under the conventional conditions of the experimental multi-table, after washing 20 times, although the flame retardant limit oxygen index has decreased, it can still be maintained above the safe limit. If it has passed 30 times, some dosage forms may lose their effectiveness depending on the advantages and disadvantages of the flame retardant and the process. And the washing resistance is still related to the washing temperature, detergent composition, and mechanical strength. If the temperature is too high and the surfactant is strong, the flame retardant will be easy to take off; soft neutral lotion and gentle washing can prolong the life of the flame retardant.
It is said that the end, the flame retardant of cotton cloth after modification has better washing performance, but it must be formulated by Seiko, scientifically applied, and chemically combined. Only after taking into account the follow-up washing can it be washed many times without losing its true color. If it is only physically adsorbed or simply impregnated, the initial effect of vertical opening is remarkable, but it will eventually decline after multiple washes. Adhering to strict craftsmanship and carefully selecting flame retardants can ensure their durability and stability.
What types of cotton fabrics are Flame Retardant for Cotton Fabrics?
Flame Retardant for Cotton Fabric. Flame retardant is applied to cotton fabrics to make them not easy to catch fire, or to delay ignition due to ignition. Cotton fabrics are soft and water-absorbing, and are known to be flammable. However, flame retardant is applied to cotton fabrics, regardless of coarse fabrics. Cotton, mixed cotton, cotton printing and dyeing products can be used for bed, curtains, clothing, windows, carpets, room furniture, children's clothing, and work fabrics. The first is to use decoration, anti-clothing, transportation equipment, etc., in order to increase safety. If it is divided into labor, flat, oblique, and cotton shuttle fabrics, or fabrics such as cotton shirts, clothing, clothing, etc., can be applied. There are combed, ordinary combs, even high-count and thin, as thick as canvas, so it is not necessary.
The use of flame retardant materials, and the use of cotton materials. For example, daily clothing, especially safety and safety, should be low toxicity, irritation; workmanship cloth, with long-lasting flame retardant, water-washable main. Printing and dyeing products are flame retardant, to test the color and the degree of security of the case, to avoid external effects. There are also children's products and materials, whose flame retardant properties especially need to be combined, harmful and safe.
As for the mixture, such as cotton, cotton and linen, cotton, and cotton, and those with a high proportion of cotton, where the cotton material occupies the majority, the flame retardant can be used together, and the formula is slightly different. The process can be dipped, coated, soaked, and soaked, etc., to reduce the amount of cotton fabric required. If it is mixed with cotton and then made into a cloth, its flame retardant performance can also be guaranteed for a longer time.
In other words, where cotton is not used for consumption, household, work or other special products, Flame Retardant for Cotton Fabric can be applied as long as necessary to protect the source of combustion and protect people's health. As for flame retardant, etc., it can be used as needed, which is not only suitable for many cities, but also safe.