Shandong Ji'Nan Small Workshop Swimwear Chemical Ingredients Exceed The Standard Wholesale 30 Sell Two Hundred

What is the difference between the swimsuit of twenty or thirty yuan on the stall and the bathing suit of several hundred yuan in the mall? Do you buy swimsuit qualified? Experts say, judging the quality of a swimsuit, besides the safety index (formaldehyde, pH value), color beautification index (color fastness), attention should be paid to the stretching elastic elongation rate and the resilience resilience recovery function of swimming pool water. On the 21 day, our reporter bought 6 women's bathing suits, 6 men's swimming trunks, and sent them to Shandong Fiber Inspection Bureau in order to detect the truth hidden in the swimsuit.

　 Experimental sampling:

No. 1 sample: the department store, an Li Fang, bought a swimsuit of 699 yuan.

No. 2 sample: department store admired the special store and bought a swimsuit of 439 yuan.

Sample No. 3: a swimsuit made of 358 yuan in the department store's competition counters.

No. 4 sample: a set of unlicensed 25 yuan swimsuit bought at a night market stall.

No. 5 sample: 65 yuan of Gnas swimsuit bought at a booth in New World Shopping Mall;

Sample No. 6: 80 yuan odd swimwear purchased from a new stalls in the new world mall.

No. 7 sample: 12 yuan unlicensed swimming trunks bought at night market stalls;

No. 8 sample: 25 yuan swimming trunks bought at a booth in the new world mall.

Number 9 sample In the new world shopping mall, a 30 yuan "poetry dream" swimming trunks bought.

(Note: the single men's swimming trunks are not enough to be sampled, so each sample has bought two pieces. )

　　 Formaldehyde content

During the experiment, the sample was extracted at a temperature of 40 degrees Celsius for a period of time. The extract was coloured with acetylacetone. The absorbance of formaldehyde in the coloring solution was determined by spectrophotometer at the wavelength of 412nm, and the formaldehyde content in the sample was calculated by comparing the working curve of standard formaldehyde. Cut out a piece of checked clothing, about 1g, and cut it up. The extract was extracted by fast solvent extraction apparatus. Formaldehyde was extracted from the sample. Then the extraction solution was derivatized. Finally, the HPLC was used for qualitative and quantitative detection.

The experimental conclusion: the national basic safety technical specification for textile products stipulates that the formaldehyde content of B products (clothing directly to the skin) shall not exceed 75mg, and the formaldehyde content in the 9 samples is less than 75mg, and the formaldehyde content is not exceeding the standard.

　 Is the pH value exceeding the standard?

Experimental process: at room temperature, the pH value of swimsuit's water extract was measured with a glass electrode pH meter. A sufficient number of samples were extracted from the sample and cut into fragments of about 5cmx5cm to soak them quickly. Weigh three samples of 2G + 0.05g and add them into the triangular flask respectively. Add 100ml distilled water and gently shake the flask to make the sample wet and oscillate for 2 hours on the oscillating machine.

Experimental conclusion: the national standard GB18401-2010 "national textile product basic safety technical specification" stipulates that the pH value of the textile products directly contacting the skin should be controlled between 4 and 8.5. Among the 9 samples sent by the reporters, the pH value of the 7 samples purchased at the stalls is over 8.6. Experts say swimsuits with an excess of pH will cause skin redness or itching.

Fabric elastic resistance recovery rate (%) for chlorinated water (swimming pool water)

Experimental process: simulated swimsuit soaked in the swimming pool and repeated stretch to test the resilience of textiles. Because men's swimsuit fabrics are not enough to be sampled, this item is only tested in women's bathing suits.

The number of random samples is three blocks straight and transverse, and the effective size of the sample is 10cm * 5cm. The sample was treated with 50mg/L according to the effective chlorine concentration. The sample was first soaked in simulated swimming pool water for 4 hours, and then the textile samples were stretched by professional instruments and equipment. The length of the sample was deformed, and the elastic deformation was calculated according to the deformation size after release.

The experimental conclusion: according to the standard of FZ/T73013-2010 "knitted swimsuit", the tensile elastic recovery rate (%) of the fabric resistant to chlorinated water (swimming pool water) is superior to straight line, transverse or equal to 70, or more than 65, and the qualified product is more than 60. Sample No. 4 is 56.2 straight and 60.5 horizontal. Experts say that if you do not swim in the swimming pool, this bathing suit will be deformed for several times.

　　 Colour fastness to chlorinated water (swimming pool water)

Experimental process: simulate the swimming pool in swimming pool water, test the resistance of textile color to various external functions. The samples of the tested textiles were soaked in the dilute solution containing chlorine in the prescribed concentration for 1 hours. After drying, the color of the sample was evaluated by grey card. The 1 grade was the worst and the 5 grade was the best.

Experimental conclusion: all 9 samples are qualified.

Stretch elongation of fabric (%)

The experimental process: the experimental personnel cut the sample from the cloth end 1.5cm above, and cut the sample straight and transverse samples 5 pieces, the size is cut to 10cm * 5cm, the two ends of the length of the sample are tightly clamped in the gripper to carry out the experiment, the test results are represented by the average value of the 5 sample data.

Experimental conclusion: according to the FZ/T73013-2010 "knitted swimsuit" standard: fabric stretch elastic elongation of straight or greater than 120, lateral or equal to 100 as superior products; straight direction is greater than 100, transverse equal to 80 is first class goods; straight direction is more than 80, horizontal or more 70 is qualified products. All 9 samples were qualified. (special statement: this experiment is only for the tested sample itself. The conclusion of the experiment can not be used as advertising propaganda, not as a professional technical index, not as a rigorous scientific data release, for reference only. )

"The swimsuit is not close to the body, it almost goes out." Recently, this newspaper received a lot of public response, saying that it was not easy to buy inferior swimsuit. The swimsuit has become the focus of complaints when it loses color, goes to the water for two times, has no elasticity and breaks the shoulder strap. 21, reporters visited a number of shopping malls in Ji'nan city of Shandong province and some stores selling swimsuits, and found that the quality of swimsuits varied. "Three no" products were rampant and brought safety risks to consumers.

[citizen response]

Swimsuits bought on stalls will fade when they wear them.

"I bought a bathing suit this summer, but on the back of the swimsuit, not only the fabric was rough, but it was very uncomfortable. After swimming, the swimsuit went off badly. In a few minutes, I was dyed colorful. It's really frustrating. I won't buy any more goods. " On the 20 day, Ms. Hu, a member of the Ji'nan public, told reporters that she spent thirty-five yuan on a swimsuit without any quality mark on the stall. "It was a good lesson to buy at that time," she said.

Subsequently, reporters visited the new world shopping mall, Han Guocheng, Shan Shi Dong Road and many shopping malls in Ji'nan, Shandong, and found swimsuits selling, but the price gap was very wide. On some stalls, women's swimsuits are generally priced at twenty or thirty yuan, and men's swimming trunks can be bought at ten yuan without even labels. Reporters found that these ten yuan one swimsuit is popular. "Swimsuit is not always worn, it's not necessary to buy it so well, the style is the most important." One citizen said.

In several large shopping malls, reporters saw the cheapest bathing suits cost more than two hundred yuan, and even higher swimsuits even cost thousands of yuan. Why is the price difference of swimsuit so large? "It is mainly reflected in the production of swimwear raw materials, and the swimsuits of good quality are made of spandex." Insiders told reporters that the swimsuit with better elasticity is mainly spandex, its content is generally higher than 18%, while the poor swimsuit has less or less spandex content, and its elasticity may be poor. If the movement amplitude is slightly larger, swimsuits are prone to deformation and cracking.

　 [reporter survey]

Wholesale price of 30 yuan, can sell more than 200.

On the 21 day, the reporter contacted three swimsuit manufacturers on the basis of wholesale swimsuit.

"The price of men's swimming trunks varies from 3 yuan to 10 yuan, and women's bathing suits are at least 14 yuan, and the most expensive ones are 19 yuan." A person in charge of the silver arrow swimming trunks factory said, "I don't have a swimsuit with 20 yuan in it, and the swimsuit cloth with more than 20 yuan is expensive to process, and the technology can not reach."

Subsequently, the reporter contacted a clothing factory called "Shi Yu". "At present, I only sell swimming trunks, because the price of swimming trunks has ranged from 4 yuan to 9.5 yuan just after the start." The head of the factory said that the price of his swimming trunks was different, mainly reflected in the different thickness, fading speed, comfort level and so on. "Like four or five yuan swimming trunks, it must fade." "The women's swimsuit, which sells 30 yuan from me, can be sold for 200 yuan outside. The bathing suit is only 5 yuan, and it can be sold for 30 yuan in the market. Xingcheng Xin Chao swimsuit factory staff said.

Insiders told reporters that due to the characteristics of less swimsuit materials and relatively complex technology, a large number of private processing sites or small workshops had flowed into the market. Officials from the Shandong Fiber Inspection Bureau told reporters that "three no" bathing suits were commonly found in the problem of excessive chemical composition. Formaldehyde and other chemical components were harmful to human body. Excessive chemical composition could cause skin allergies.

Mo Tu cheap, it is best to buy in regular shopping malls.

"When people buy swimsuits, they often do not consider the key factors such as elasticity, breathability, comfort and so on. They only pursue fancy and low prices." Guan Jie said that swimsuits have relevant industry standards, which have requirements for appearance quality and internal quality. The color fastness, formaldehyde content, fiber content, pH value, elastic index, washability and chlorine resistance of products are all specified in detail. When consumers buy swimsuits, they can't just look at the price and style but ignore the quality of swimsuits.

Shandong provincial Fiber Inspection Bureau staff reminded that in summer the skin of the human body is already more sensitive, and the swimsuit is relatively close. If the air permeability is not good, or the quality is not good enough, it will affect the health. It is suggested that consumers should go to the regular shopping mall to buy the swimsuit with complete label, quality and safety.

Original title: Ji'nan small swimming suit overflow chemical ingredients exceed standard wholesale 30 sell two hundred