How to match linen detergent?

In fact, the choice of any chemicals can not be separated from the washing company's own conditions. I don't think it's practical to talk about the quality of detergent from the use environment and methods. Over the years, the experience of selling detergents and trial washing to hundreds of hotels, hospitals and washing companies tells me that the improvement of linen washing quality is a systematic work, and it can not be solved simply by so-called good-quality chemicals. I have seen too many such situations: the owner thinks the quality of the same chemical is quite good, and the westerners think the quality is problematic. I believe all colleagues who do chemical engineering feel the same way. A company with good linen washing quality will always find that it is the result of scientific allocation of all washing elements: appropriate water hardness, good steam supply, advanced washing equipment, scientific and systematic chemical raw material management system with stable quality, and most importantly, skilled and responsible managers and washing operators. All these factors work together to produce a good washing effect.

Therefore, in the actual washing process, the choice and use of chemicals is one of the conditions to ensure the washing quality of flax, but not all. Of course, choosing good quality detergent is also a necessary condition to reduce backwashing, improve efficiency and reduce the risk of linen damage. So what is a "good quality" detergent?

I believe that if you ask ten laundry companies or hotel hospitals about this question, there will be ten different answers. Why? First, there is no unified national standard or industry standard for the quality of special cleaners in laundry industry. The supply and demand sides only have contract standards or negotiation standards. Second, each user's own conditions and mastery of chemical properties are not the same. The third is the price factor. Fourth, convenient service, different communication methods and hidden rules directly determine the "quality" of chemicals. In a sense, the laundry room is more like a hospital. In order to treat patients, we should not only have good doctors, but also have certain conditions. Finally, it is necessary to have a drug with a suitable formula to achieve the purpose of curing patients.

Because there is no uniform standard for selecting cleaning agents, I will make a simple suggestion for different users and distributors as an alternative scheme for purchasing cleaning agents for reference.

First, for a new dry cleaner or laundry factory,

1. The safety performance of chemicals must be considered. For products with strong alkali, strong acid, strong oxidation and strong reducibility, if you can't master their properties well, choose as few products as possible to avoid damaging linen and causing losses.

2. Choose the manufacturer. If you can't master the nature of washing chemicals well, try not to choose products from manufacturers with low prices but little news. In fact, a considerable number of domestic chemical manufacturers have reached a high level in terms of product quality stability and safety, as well as training and service network construction.

3 have a clear understanding of their own conditions, such as water quality, equipment, personnel quality and skills. Don't feel good about yourself. Sincerely sit down with chemical manufacturers to talk about practical problems such as personnel training, process improvement and water washing quality assurance measures, and then make plans and solve them one by one. Throughout the country, any washing company that washes well or has influence in the local area will make timely use of the professional knowledge and experience of chemical manufacturers to improve their washing quality.

4. Selection of specific chemicals.

The main washing materials for washing sheets and quilts should be investigated for their composition characteristics:

Water treatment components, surfactant content (not less than 15%), ph value (9- 12, 1% aqueous solution, 20℃).

Bleaching agent: chlorine content is 16-20%, and oxygen content is (1 1- 13.5%). Of course, the higher the economy.

Acid agent (neutralization): check its ph value (4-6, 1% aqueous solution, 20℃).

The composition characteristics of washing tablecloths should be investigated:

Emulsifier: The content of surfactant (not less than 35%) and ionic compatibility were investigated. Use temperature, etc.

Table cloth powder: The surfactant, alkali content, ease of use and decontamination time were investigated.

Strong powder: check the speed and safety of decontamination. If the manufacturer needs to add builder to wash the tablecloth, it can basically be judged that there is something wrong with the content of strong powder or emulsifier. With the development of technology, the melting of low-temperature tablecloth has appeared in the market, and its effect needs to be tested and verified by users. There are also two-in-one convenient and economical products such as strong milk tablecloth powder, which users can boldly try because the starting point of developing this product is to save time and cost.

Second, for old hotels or washing factories.

The washing effect of towels can basically represent the washing level of hotels or laundry factories. Due to the thick texture and deep stains of towels, the requirements for detergents and water quality are also higher. At the same time, the number of times and temperature of passing water are very high, so we must have the idea that the whiteness and softness of towels are natural and lasting only after washing, otherwise their whiteness and softness are temporary, and the effect produced by the accumulation of whitening agents and cationic softeners is harmful, because the yellowing of towels will only appear in the future. Manufacturers with such problems must communicate with chemical manufacturers in time and strengthen the adjustment of towel powder components in order to achieve long-term ideal results.

Third, for the hospital laundry room.

Domestic chemicals are basically in the stage of high alkali and strong oxidation decontamination, that is, strong powder combined with sodium hypochlorite is used to remove blood stains, oil stains or drug stains. Low-temperature whitening washing powder, oxygen bleaching agent and emulsifier are usually selected for the washing of laboratory coats. This kind of chemicals also has the characteristics of large dosage, high temperature and high alkali, and great harm to flax. It is rare to find a detergent containing biochemical components, which has a small dosage and good effect. According to our long-term market observation, statistics and analysis, many chemical manufacturers have obvious shortcomings in technology research and development in this regard, and there is no real cleaner suitable for hospital linen washing.

Fourth, for chemical distributors.

It must be understood that in industries without detergent quality standards, it is difficult to choose a good quality detergent to promote sales. However, it is not completely impossible to identify, that is, it depends on which chemicals are better for local laundry units with poor conditions, on the importance and policies of chemical manufacturers to the market, on how competitive the price is, and then on their own advantages to make plans.

In a word, detergent itself is a chemical substance, but the chemical substance has its inherent properties. Under the premise of not using standard requirements and quality standards, we can't judge the quality of all of them, otherwise we are subjective, hearsay or don't believe in science, and can only reflect our own ignorance and wrong knowledge. For example, a well-known daily chemical manufacturer advertised on TV that a washing powder can disintegrate hundreds of stains at the same time. Can you believe it? I only know that the more targeted chemicals, the more obvious the effect will be. For products with more functions, we have reason to doubt its effect. For example, chlorine bleaching powder means high content, good quality or low quality? In fact, quality is only related to the standard and price at home, and it is only the user and dosage that affect the effect for users. As the saying goes, a good cook's salt and a good doctor's wormwood save all beings, and ordinary things will naturally turn decay into magic when they reach the hands of people who really know how to do things! Another example is 100 kg of white flax. At a certain water level and temperature, will 400g of 30% chlorine bleaching and 400g 12% chlorine bleaching have the same effect? Of course not. The former may cause linen to turn yellow, while the latter may have just the right effect. Can you say that the content is high and the quality is good? Therefore, there is a question of applicability, that is, it is more scientific and practical to choose chemicals suitable for your own use according to different objects and different conditions.