The safety of domestic Sanitary napkin
s is not worse than that of foreign countries.
In order to ensure the accuracy of the test results, all the domestic samples submitted for inspection were selec
ted from the daily cotton series, and all were purchased from the same Wal-Mart supermarket. Foreign Sanitary
napkins were purchased directly from abroad. The results show that the sanitary hygiene of domestic sanitary napkins, like foreign sanitary napkins, has reached the microbiological index of sanitary standards for sanitary napkin products in the natio
nal standard GB 15979-2002 "Sanitary Standards for Disposable Sanitary Products".
As for the migratory fluorescing agent that had been raging before, it is surprising that all the domestic sanitary napkins submitted for inspection were not detected.
It must be pointed out that at present, the standards for the detection of fluorescent agents are not clearly defined in the sanitary napkin standards of most countries and regions in China and abroad. only in the CNS 9324 "Sanitary Cotton" standard in Taiwan, China clearly requires "non-migratory fluorescent substances" and requires CNS 11820-2007 "Test method for migratory fluorescent substances in paper products" for testing.
The head of the Department of Physiological and Health Products of the Product Development and Research Department of Kao (China) Research and Development Co., Ltd. told the Oriental Weekly. In Japan, the standard setting of fluorescent whitening agents in sanitary products began in the 1960s. At present, the standard of fluorescent whitening agent in Japanese sanitary hygiene products is the quality standard of physiological and hygienic products in "Practical Standards for the Production and Marketing of Physiological Hygiene Products" (March No. 0318008, March 18, 2008).
Chen Hao, secretary-general of the National Paper Industry Standardization Technical Committee, told the Oriental Weekly, as the focal point for sanitary napkin product standards, which strengthened the fluorescent substances and formaldehyde in sanitary napkins in a scientific and consumer-responsible attitude. In the study, the AQSIQ also carried out risk monitoring related to sanitary napkin products.
Chen Wei said that some sanitary napkin products do have a safety risk of fluorescent substances. It is necessary to add this indicator to the regulatory standards when they are revised. "But the specific regulations need to be verified by a large number of experiments, combined with the actual situation of domestic products, with reference to relevant regulations to determine."
Controversial fluorescer damaging
Why is the attitude of national standards on fluorescent agents not uniform, does it have any harm to the human body?
Dong Zhongsheng, a dye testing laboratory of Shenyang Research Institute of Chemical Industry Co., Ltd. and a senior engineer of the National Dyestuff Quality Supervision and Inspection Center, told the Oriental Weekly. There are dozens of fluorescent agents still in production and use in the world. "These commonly used varieties can be said to have been riddled with big waves, and their toxicological data have been proven to be low-toxic or basically non-toxic, and can be used with confidence. Some fluorescent whitening agents are indeed toxic, but have been eliminated."
Common fluorescent whitening agents such as CBS have been tested abroad, indicating that they are harmless to the human body.
According to the Code of Federal Regulations (CFR), fluorescent whitening agents can be used as non-direct food additives, allowing fluorescent whitening agents 368, Hostalux KS1, etc. to be used in food packaging containers, but there are limits on the maximum amount of addition.
There are more than 500 banned and restricted dyes published by the European Union. Fluorescent whitening agents are used as a white dye and are not prohibited or restricted.
The term “migratorability” is mentioned in the standard expression of fluorescent agents in Taiwan.
Dong Zhongsheng told the reporter of "Looking at Oriental Weekly" that the theory of the mobility and non-migratory of fluorescent agents has only been available in recent years, and he does not agree with this formulation. Fundamental Research also said to the reporter of "Looking at Oriental Weekly" that "Japan's standards for fluorescers do not contain information about migratory fluorescers, non-migratory fluorescers. And the Japanese industry does not have these two fluorescers. Classification method."
Some domestic manufacturers have their own understanding of mobility and non-migability.
"The migratory fluorescent agent is harmful to the human body. once it is combined with the protein in the human body, it is difficult to be excreted through normal metabolism, which will greatly weaken the immunity and wound healing ability. In addition to causing serious harm to vital organs such as the liver, it also induces cancerous cells, which is one of the potential carcinogenic factors." Qiu Yonglong, the manufacturer of Qianjin Jingya Sanitary Napkin Co., Ltd. and Hunan Qianjin Sanitary Products Co., Ltd., told the Oriental Weekly.
Xu Xufang, the relevant person in charge of ABC's manufacturer in Guangdong Jingxing, said that the non-migratory fluorescent whitening agent will not be transferred to the human body, so it will not cause harm, and the movable fluorescent whitening agent reaches a certain amount. May be harmful to the human body.
As an expert in functional fluorescent compounds, Shen Yongjia, a professor at the School of Chemistry and Molecular Engineering at East China University of Science and Technology, told the reporter of "Looking at Oriental Weekly" that paper is used as a whitening agent for paper, and four to six kinds are commonly used in China. It is not easy to say whether it is harmful or not, and there is no relevant experimental data abroad."
Shen Yongjia believes that "everyone is exposed to paper, especially primary school students. From notebooks, paper towels, washing powder and other daily necessities, there are brighteners. With so many years of experience, there is no direct harm to human health."
In addition, he stressed: "Even if the fluorescent agent is harmful to the human body, its amount is too small, and the impact on the human body is negligible."
only brighteners are used in recycled pulp.
The raw material of the sanitary napkin is pulp.
Shen Yongjia told the reporter of "Weifang Oriental Weekly" that the pulp used in such products as sanitary napkins should be raw pulp, which is very clean and of controllable quality.
In the case of ordinary paper manufacturing, etc., recycled pulp is used, and many of them are brightened with a fluorescent agent. Although recycled pulp is ba
sed on enviro
nmental considerations, Shen Yo
ngjia believes that sanitary napkins and Baby diaper
s, which are in direct co
ntact with the human body, should not use recycled pulp. If a virgin pulp is used, in theory, it is not necessary for the sanitary napkin to use a fluorescing agent to whiten.
However, virgin pulp is expensive and limited in quantity.
"If it is a black-hearted enterprise, he wants to make sanitary napkins, but with strict cost control, it is possible to use recycled pulp. The quality of recycled pulp is not as good as that of raw pulp, and it is not so white. You have to use fluorescent agents." Shen Yongjia said.
It can be seen that in general, if it is a company that uses virgin pulp to make sanitary napkins, the use of fluorescent agents to whiten will only increase costs. Therefore, it is necessary to use a fluorescent agent to achieve a whitening effect of the sanitary napkin, and the original material itself is doubtful.
Qiu Yonglong told the reporter of "Looking at Oriental Weekly" that "the regular materials used by the regular large brands are basically free of migratory fluorescent agents, which are harmless to the human body. You can use them with confidence. Small black-hearted enterprises use unqualified materials. May contain a migratory fluorescer."
Domestic and international product hygiene standards are all up to standard
Sanitary napkins need to meet the product hygiene indicators in GB 15979-2002 "Sanitary Standards for Disposable Hygiene Products", that is, they need to meet microbiological indicators, including initial contaminating bacteria (sterilization grade only), total bacterial colonies, coliforms, The total number of pathogenic pyogenic bacteria (referred to as Pseudomonas aeruginosa, Staphylococcus aureus and hemolytic streptococcus) and fungal colonies. In this indicator, the health indicators of women's menstrual hygiene products are divided into two categories: general grade and disinfection grade.
"Disinfecting grade" sanitary napkins should be marked with "disinfection grade" on the outer packaging, and "normal grade" sanitary napkins are not marked on the outer packaging.
Disinfecting sanitary napkins must eventually be sterilized by ethylene oxide, etc., and the amount of ethylene oxide residues needs to be controlled. Generally, such sanitary napkins are rarely available on the market.
The difference in hygiene indicators between the two types of products is mainly in the initial contaminating bacteria, the total number of bacterial colonies and the total number of fungal colonies.
The test results show that although the samples of 22 domestic and foreign brands submitted for this inspection are of ordinary grade, the total number of bacterial colonies and the total number of fungal colonies are less than 20 cfu/g, which has reached the disinfection level; Pathogenic purulent bacteria.
It can be said that domestic and foreign products not only meet the standards in terms of health indicators, but also perform well. And the so-called domestic sanitary napkins are not up to standard, carcinogenic, etc., in many cases may be the purchase of rumors deliberately concocted for sales. "Looking at Oriental Weekly" reporter Ma Li
According to the test results, “Looking at Oriental Weekly” made a comprehensive ranking of the samples of 9 domestic sanitary napkins according to the three major categories of performance/physical and chemical indicators, microbial indicators and safety indicators. Among them, the top three are Qianjin Jingya, Beishute and ABC “Looking at Oriental Weekly” reporter Ma Li/Beijing reported that there are many varieties of sanitary napkins available in the market, and the materials and characteristics are different. How to choose a cost-effective product with the same hygiene and safety? This time, the third-party testing agency's seven-dimensional space, Sufi, Jieting, Hushubao, ABC, Kao's Leya, Besut, Gaojiesi, and Qianjinjingya were purchased by Wangfang Oriental Weekly. Domestic sanitary napkins, according to GB/T 8939-2008 "Sanitary napkins (including sanitary pads)" national standards (hereinafter referred to as the national standard), the performance of the four indicators of water absorption rate, infiltration, PH value and moisture. The test results show that the performance of domestic sanitary napkins has reached the national standard. According to the test results, the comprehensive performance/physical and chemical indicators, microbial indicators and safety indicators of the “Weiwang Oriental Weekly” ranked the above sanitary napkin samples. Among them, the top three are Qianjin Jingya, Beishute and ABC. The water absorption rate is the most prominent. The Secretary-General of the National Paper Industry Standardization Technical Committee Chen Hao told the “Eye of the Weekly Weekly” that the water absorption rate reflects the absorption capacity of the product within a certain period of time. The greater the water absorption rate of the product, the stronger its absorption capacity. At present, the national standard stipulates that the water absorption rate of sanitary napkins is 7.0, and the water absorption rate of sanitary pads is 2.0. In this test, the absorption ratios of the nine sanitary napkins were all greater than 10. The best performances were Büssett, ABC and Qianjin. Among them, the number of times of the Shu Shute is much higher than other products, the price of Qianjin is ranked second with 26.6 times, and ABC ranks third with the test result of 22.9 times.
The amount of infiltration is much higher than the national standard except for the water absorption rate. The infiltration amount can also reflect the performance of a sanitary napkin. This indicator is mainly to ensure that there is no side leakage during the use of the product. “The greater the amount of infiltration, the better the instantaneous absorption performance of the product, and the more difficult the product is to have side leakage,” explains Chen Yu. At present, the national standard stipulates that the infiltration amount is greater than or equal to 1.8g, and as a sanitary pad for non-menstrual use, the requirement of infiltration amount is not required. However, Qiu Yonglong, general manager of Hunan Qianjin Sanitary Products Co., Ltd., told the “Eye of the Weekly Weekly”, which was revised to the national standard in 2008. The standard is relatively low. At present, the amount of infiltration in the industry is generally higher than the national standard. In this test, the infiltration amount of the 10 products was 5.1g, which was much higher than the 1.8g required by the high standard. In order to effectively increase the penetration index, all sanitary napkin manufacturers have invested a lot of energy in research and development. In the production process structure, the ABC sanitary napkins pioneered the blue chip design to speed up the penetration, which led other brands to follow suit. “We also use imported wood pulp and polymer water-absorbing resin to ensure water absorption, penetration speed, liquid diffusion and liquid lock to ensure surface dryness.” Xu Xufang, head of R&D and quality control technology of Guangdong Jingxing Hygiene Products Co., Ltd. told Looking at the Oriental Weekly. Kao (China) Research and Development Co., Ltd. Commodity Development Research Department of the Department of Physiological Hygiene Products, the fundamental researcher told the "Looking East Weekly", its brand of elegant and instantaneous acceleration absorption surface design, mainly focusing on the gap created by fiber interlacing, through These gaps are enlarged so that viscous menstrual blood can quickly pass through these gaps. Thereby, the menstrual blood does not remain in the surface layer and does not diffuse. A sanitary napkin with a good penetration rate not only prevents side leakage, but also allows the user to have a dry feeling and minimize the residual of body fluids on the surface. The PH value is weakly acidic. The current national standard has a pH value of 4.0 to 9.0, and the general sanitary napkin is maintained between 7.0 and 9.0, which is neutral. In the PH color table, it can be seen that 4 to 7 are acidic, 7 is neutral, and 7 to 10 are alkaline. Chen Wei told the reporter of "Looking at Oriental Weekly" that PH value is an important chemical indicator for sanitary napkins and sanitary pads. If the pH is too high or too low, it will cause irritation to the skin. According to a large number of verification studies, the pH of sanitary napkins and sanitary pads is between 4.0 and 9.0. However, it should be noted that the skin of the human body is weakly acidic, and the pH of healthy skin is 5.0 to 5.6, so the pH of the sanitary napkin is closer to the skin. Under normal circumstances, a sufficient amount of estrogen is present in the female body, and together with the lactobacillus, the private part presents a weakly acidic environment. Therefore, Qiu Yonglong believes that the sanitary napkin has a PH value of around 7 and is neutral. However, in this test, Jieting, Kao, Besut and Qianjin Jingya have a pH higher than 8, which is weakly alkaline and does not meet the best recommendation. Other brands such as ABC and Seven Degrees have PH values below 8. The water is not as small as possible. In addition, in the moisture percentage test, the moisture content is between 2.2 and 6.6, which is lower than the upper limit of the standard (10). Chen Wei said that the water content mentioned in the national standard refers to the moisture content of the whole process from the delivery of the product to the delivery of the consumer. The excessive moisture content may lead to microbial growth. Therefore, after the product is shipped, the moisture content may be changed during transportation and storage depending on the environment. However, the fundamental researcher told the reporter of “Looking at Oriental Weekly” that “physiological and hygienic products do not contain too much water, and there is no nutrient source that can help bacteria to breed. Therefore, bacteria on sanitary products will not increase.” Qiu Yonglong does not think The smaller the moisture content, the better. “It is generally the most standard between 5 and 6.”