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Sanitary napkin evaluation: comprehensive evaluation of Qianjin Jing Ya Enzhi better Shu Bao Bao bot

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Core tips:Sanitary napkin machine Sanitary napkin evaluation: comprehensive evaluation of Qianjin Jing Ya Enzhi better Shu Bao Bao bottom The sanitary napkin itself is a wonderful idea. The core of its creativity is that the product can absorb menstrual blood better but not because it
Sanitary napkin evaluation: comprehensive evaluation of Qianjin Jing Ya Enzhi better Shu Bao Bao bottom
 
The Sanitary napkin itself is a wonderful idea. The core of its creativity is that the product can absorb menstrual blood better but not because it is too thick or because of the poor quality of the material.
 
This is reflected in the performance index of the product, namely its absorption properties and gas permeability.
 
In February 2016, Consumer Reports sent 3 well-known domestic and international sanitary napkins to the third-party authoritative testing agencies to compare their absorption performance and breathability. The 8 samples are the main products of their respective brands, emphasizing cotton softness,
 
Breathable and ultra-thin properties. According to the applicable quantity classification, most brands can be divided into small quantity, general quantity (standard) type and multi-type type. The 8 samples sent by this magazine are all of the general (standard) type.
 
The test results show that Shu Shubao ranks at the bottom of the index of water absorption rate reflecting the absorption amount and the index of the penetration of the reaction instantaneous suction performance. The absorption rate of Enshi is higher, and the absorption of the other products is not the same. In terms of breathability, the breathability of the finest gold is better, and the performance of Sophie is not good.
 
Enshi has better absorption performance
 
In January 2016, the “Consumer Report” survey of 120 consumers about sanitary napkins showed that the three main factors consumers care about for sanitary napkins are good absorption, dry surface (73.3%), and good ventilation. 71.7%), the bottom and sides are not leaking (70.8%). (Figure 1)
 
 As a disposable hygiene product, the sanitary condition of sanitary napkins is undoubtedly a prerequisite for its use. Sanitary napkins prepared using recycled scrap are difficult to meet the national sanitary requirements.
Recommended national standard GB/T 8939-2008 Two indicators related to absorption performance in "Sanitary napkins (including sanitary pads)" are water absorption ratio and infiltration amount. The former reflects the absorption of the product to a certain extent, while the latter reflects the instantaneous absorption capacity of the product. The greater the infiltration amount, the faster the absorption rate of the product is to some extent, and the risk of liquid leakage is smaller.
 
However, Li Yinqi, a research and development engineer for silk towel sanitary napkins, believes that the higher the water absorption rate, the greater the actual absorbed menstrual blood volume. Because the water absorption method used in the national standard is pure water, it is still different from the actual menstrual blood.
 
The results of this test show that all 8 products can meet the requirements of national standard water absorption ratio ≥7.0, infiltration amount ≥1.8g.
 
Among them, Hu Shubao ranked the bottom in both indicators, and there is a clear gap with the other products. South Korea's imported brand, Enzhi, has performed well with Qianjin Jingya, and the performance of the other products is not much different. (Figure 2)
 
 As a disposable hygiene product, the sanitary condition of sanitary napkins is undoubtedly a prerequisite for its use. Sanitary napkins prepared using recycled scrap are difficult to meet the national sanitary requirements.
“The positioning of different products in different absorption is different, and the products are also available in large quantities and small quantities to meet the needs of consumers with different throughputs. Generally, the products with larger absorption can be 3 times higher than the national standard for water absorption. Left and right.” The technical engineer of Hengan Group, which belongs to the Seven Degrees Space brand, stressed.
 
Huang Yuqin, deputy general manager of Hunan Qianjin Hygiene Products Co., Ltd., believes that consumers should not blindly pursue large absorption, and it is more conducive to menstrual health and health. The more scientific time to replace the sanitary napkin is 2 hours. Under this premise, the water absorption rate is too high.
 
“Infiltration of 5 grams can be regarded as a relatively good result.” Li Yinqi added, “Some consumers will purchase original sanitary napkins from overseas, but domestic and foreign products will have some differences in the control of infiltration. Western women The size of the body is larger than that of the domestic one. The sanitary napkins of the same size will be more suitable for their body, and the risk of leakage is relatively small, so the penetration of Western product design may be smaller."
 
At the same time, he also pointed out that in order to be closer to the daily use of the consumer, the company will carry out some absorption experiments simulating the menstrual blood in the product development process, and test the absorption speed, the amount of back leakage, and the side leakage of the product.
 
This time, the magazine also carried out a similar experiment. The test results show that the Shushubao absorption rate is poor, and there is a significant gap with other brands, which is also consistent with the test results of the infiltration amount in the national standard.
 
“Retiny” is a term in physics, such as a sponge that absorbs water, and it squeezes gently, and the water will flow out.
 
One interviewee said that the “back oozing” on the surface of sanitary napkins is of course as small as possible. In this way, when the pressure is applied, the menstrual blood accumulated in the sanitary napkin is not squeezed out, and the human skin feels dry and comfortable.
 
The test results show that the difference in the amount of back-infiltration of the eight products is not very large. Among them, Hu Shubao and Sophie are lower.
 
The menstrual blood leaked onto the clothes, which is a common trouble encountered by women during menstruation. The simulation test of this journal shows that Qianjin Jingya and Sufi are more leak-proof, while Hushubao performs poorly. (Figure 3)
 
 As a disposable hygiene product, the sanitary condition of sanitary napkins is undoubtedly a prerequisite for its use. Sanitary napkins prepared using recycled scrap are difficult to meet the national sanitary requirements.
Sanitary napkins are available in three layers: soft, cotton and dry mesh. In general, cotton (including soft, pure cotton) sanitary napkins are characterized by a more skin-friendly, especially pure cotton material, which is more advantageous in terms of softness and comfort. The sanitary napkin of the mesh material is very dry because it is difficult to adhere to the surface due to the liquid.
 
“The current market is dominated by cotton materials (including pure cotton and soft), and its ratio to net quality is about 7:3.” Hengan Group related technical engineers added.
 
According to the research and development department of Kao, with the development of non-woven technology, a non-woven (cotton) surface material which is soft and easy to use and has been developed has been developed. This is also the reason why sanitary napkins sold on the market are mainly non-woven fabrics.
 
Among the 8 products submitted for inspection, the products are pure and elegant, seven degrees space, and Enzhi claims to use pure cotton material, and the other products are all soft materials.
 
“Silk cotton materials are relatively expensive, so there are fewer products on the market. Compared with the other two materials, they have advantages in softness and comfort. They are more suitable for skin sensitivity and have higher requirements for soft skin. Consumers," one respondent said.
 
Huang Yuqin suggested that consumers can choose according to their skin type and feeling of use. Some consumers may be sensitive to skin types. Using sanitary napkins on the mesh surface can cause allergies and redness.
 
Qianjinjingya is more breathable
 
Under the premise of ensuring that the product does not leak, the bottom film of the sanitary napkin cannot be caused by excessive heat and discomfort.
 
Ultra-breathable breathable membrane, breathable properties make breathing more comfortable... Almost all sanitary napkins are highlighted in breathability.
 
The importance of breathability is obvious. The sanitary napkin is relatively closed. The moist environment and menstrual blood are easy to breed anaerobic bacteria. If the sanitary napkin is not breathable, it will provide a good breeding ground for bacteria and affect women's health.
 
In addition, the breathability of sanitary napkins is an important part of the consumer experience of comfort. The sanitary napkin has good air permeability, and the moisture is easy to be distributed, which can effectively reduce the dampness of the sanitary napkin and make the use experience more dry.
 
"Whether the sanitary napkin is ventilated depends mainly on the water vapor permeability of the base film. Because the base film is the most barrier material in the composition of the sanitary napkin, the base film must ensure that the water vapor molecules (with a diameter of 0.0004 μm) cannot pass through. Permeate through liquid (minimum water molecule diameter is 20μm). Hao Wenjing, an engineer with Jinan Languang Electromechanical Technology Co., Ltd. who has many years of experience in the tissue industry, told the Consumer Reporter.
 
However, there is no standard method for gas permeability testing in the national standard. In this test, the breathable base film of the sanitary napkin was peeled off from the product, and the water vapor transmission amount was tested and repeated tests were carried out 10 times.
 
The test results show that the permeability of each brand is significantly different. The amount of water vapor permeation is large, and it is more than 100 times that of poor performance Sophie, ABC, and Gao Jiesi. (Figure 4)
 
 As a disposable hygiene product, the sanitary condition of sanitary napkins is undoubtedly a prerequisite for its use. Sanitary napkins prepared using recycled scrap are difficult to meet the national sanitary requirements.
Hao Wenjing analysis said that such test results are more common. At present, the base film of commonly used sanitary napkins has two kinds of cast polyethylene and polyolefin microporous gas permeable membrane, and the latter has obvious air permeability advantage over the former. In addition, the permeability of the base film is also related to the thickness of the base film and the diameter of the micropore.
 
The base film is the most important but not the only factor affecting the gas permeability. The production process of the sanitary napkin, such as the density of the absorbent layer and the area of ​​the adhesive strip, will have an effect on the overall breathability of the sanitary napkin.
 
At present, simulation experiments are generally carried out in the industry to observe the breathability of the finished product. The basic experimental idea is to install hot water in the beaker, cover the cup with a sanitary napkin, and then buckle a beaker. As the hot water gas passes through the sanitary napkin, water mist gradually appears on the wall of the beaker, and the more the water mist appears, the better the gas permeability of the reaction product is.
 
The results of the simulation test show that there is a significant positive correlation between the gas permeability of the finished product and the water vapor permeation of the base film. The finished product has a higher breathability score in the elegant and seven-degree space, followed by Enshi. Under the same experimental conditions, Sophie, ABC, Gao Jiesi, and Shu Shubao could hardly observe the occurrence of water mist.
 
Another noteworthy phenomenon is that the water vapor permeation of the base film of sanitary napkins is generally inferior to that of Diapers compared to the results of the permeability test of seven diapers in February 2015. The water vapor permeation rate of the base film of 7 diapers is generally above 2000g/cm2·24h, and the highest is up to 2902g/cm2·24h.
 
Hao Wenjing told this reporter that due to the delicate skin of the baby, the base film of the diaper generally adopts a microporous gas permeable membrane with good permeability.
 
evaluation Report 2: 8 sanitary napkins, good health and safety status
As a disposable hygiene product, the sanitary condition of sanitary napkins is undoubtedly a prerequisite for its use. Sanitary napkins prepared using recycled scrap are difficult to meet the national sanitary requirements.
 
In February 2016, “Consumer Report” sent 8 brands of sanitary napkins such as Sophie, Leya, Gaojiesi, Qidu Space, Hushubao, Qianjinjingya, ABC and Enzhi to third-party authoritative testing institutions. Compare the health status of the test.
 
The test results show that the sanitary napkins of the eight sanitary napkins are excellent and can meet the microbiological requirements of disinfection level.
 
8 sanitary napkins are in good condition
 
GB GB9799-2002 "Sanitary Standards for Disposable Hygiene Products" divides the sanitary grade of sanitary napkins into two grades: ordinary grade and disinfection grade. For microbiological indicators, the disinfection level is more demanding and its biosafety is higher.
 
The results of this test show that the sanitary wares of the eight sanitary napkins are relatively excellent and can meet the microbiological requirements of disinfection level. (Figure 5)
 
 In addition to the basic absorption properties, can a sanitary napkin take on more functions?
Among them, the registration certificate number of Qianjinjingya sanitary napkin products is food and medicine supervision equipment, and the hygiene standard of the products needs to reach the disinfection level. The remaining products only need to meet the general hygiene requirements.
 
At present, sanitary napkins on the market are still dominated by ordinary grades. “General general sanitary napkins ensure that the finished product meets the hygiene requirements through the control of raw materials and production processes, and the disinfection-grade sanitary napkins will be uniformly disinfected after the product is packaged to meet the hygiene requirements of the products.” Li Yinqi, a group sanitary napkin development engineer, explained.
 
Xie Xiaobao, director of the Microbial Analysis and Testing Center of Guangdong Province, added that the addition of antibacterial substances to sanitary napkins is also beneficial to good hygiene. The excellent hygiene of finished products is a good example of the selection of materials and the control of the production process.
 
Change sanitary napkins and keep them away from light.
 
Excellent sanitary condition is the premise of safe use of products. In order to ensure the health and safety of the whole process of sanitary napkins, consumers should pay special attention to: change the sanitary napkins frequently, it is best to replace them once every 2 hours, no more than 3 hours at the latest.
 
According to the questionnaire on sanitary napkins conducted by 120 consumers in January 2016, 34% of consumers still have to replace sanitary napkins more than 3 hours. (Figure 1)
 
It is important to know that menstrual blood contains a lot of protein and other nutrients, plus the warm and humid environment of the private parts, which provides a very suitable environment for the breeding of anaerobic bacteria. Generally, bacteria can multiply for one generation at the earliest 20 minutes, and up to 29 = 512 times after 3 hours. The longer the replacement time, the higher the risk of pathogenic bacteria.
 
Of the 20 volunteers who participated in the subjective experience of sanitary napkins, 3 were not replaced when they had a small amount of menstrual blood. This practice is also not desirable. Although the amount of menstrual blood is small, it does not prevent it from becoming a good carrier for the growth and reproduction of microorganisms.
 
Many consumers are blindly pursuing products with large absorption, and the starting point is to reduce the frequency of replacement and save costs. From the perspective of menstrual health, this concept of consumption is not worth promoting. Changing sanitary napkins is more conducive to menstrual health.
 
Many consumers are accustomed to placing sanitary napkins in the bathroom, which is not desirable.
 
The air in the bathroom is damp, which can easily cause the sanitary napkin to get wet and deteriorate, and the bacteria invade and multiply. It is recommended that consumers try to buy products with easy-to-pull design, and single-piece sanitary napkins with sealed packaging. Among the 8 samples sent by this magazine, Qianjin Jingya is single-chip packaging, and Enshi and ABC have easy-to-pull stickers. In addition, consumers should also develop the habit of placing sanitary napkins in a dry, dark, clean environment.
 
evaluation report three: ABC antibacterial effect is stronger
In addition to the basic absorption properties, can a sanitary napkin take on more functions?
 
In January 2016, the Consumer Report reported that 120 consumers of sanitary napkins showed that 63.6% of consumers expected sanitary napkins to have antibacterial effects, and 30.8% of participants were concerned about their ability to eliminate odors.
 
The menstrual blood produced by women during menstruation is itself a nutrient carrier for the growth and reproduction of microorganisms. If harmful bacteria multiply, it will cause harm to the human body, and the reproduction of microorganisms is also one of the sources of odor.
 
Consumers may often hear the antibacterial and antibacterial effects of sanitary napkins, but in fact, these two concepts are academically different.
 
"Antibacterial is a unique definition in China. It contains two aspects of sterilization and bacteriostasis. Foreign countries generally only distinguish between bacteriostasis and sterilization." Zheng Sujiang, deputy director of the Antibacterial Materials Testing Center of the Institute of Physical and Chemical Technology of the Chinese Academy of Sciences explained to the reporter, "Bactericidal It means killing bacteria, while bacteriostatic means inhibiting the growth of bacteria."
 
The practical significance of the antibacterial and antibacterial effect of sanitary napkins is to improve the health and hygiene state of sanitary napkins, such as reducing odor, reducing microbial growth, and reducing the probability of inflammation and the like.
 
In February 2016, “Consumer Report” sent 8 brands of sanitary napkins such as Sophie, Leya, Gaojiesi, Qidu Space, Hushubao, Qianjinjingya, ABC and Enzhi to third-party authoritative testing institutions. Compare the antibacterial efficacy of the test.
 
This time, this magazine mainly tests three representative bacteria (E. coli, Staphylococcus aureus, white
 
Label: Devices Mechanical
 
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