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50 pieces of "bare-legged artifacts" review: Lanza warm socks sample D value measured is inconsistent with the claim

In order to spend the cold winter beautifully, and not to be "beautiful frozen", are you looking for a suitable pair of "bare-legged artifacts"? Recently, the Shanghai Municipal Consumer Protection Commission issued the "Bulletin of Comparative Test Results of Warm Socks (2021)", which evaluated 50 pieces of warm socks suitable for winter wear. The results show that the measured D value of the Lanza sample is inconsistent with the claim, and the sample samples such as Antarctica have not achieved the "anti-hook" effect declared on the webpage.

The overall evaluation results show that let's diet, Antarctica, Bananain banana and other samples scored three and a half stars, ranking low. In the evaluation of the "thermal insulation rate" dimension, the nominal trademarks "MUJI", "NetEase Yanxuan" and "Uniqlo" were only awarded three stars, and the samples with the nominal trademark name "MINISO" were only awarded two and a half stars. The Shanghai Municipal Consumer Protection Commission reminds consumers that "bare-legged artifacts" should not be worn for a long time, and products with anti-static functions should be selected as much as possible. When washing, it is best to face the lint inside outwards and wash gently by hand.

50 pieces of "bare-legged artifacts" review: Lanza warm socks sample D value measured is inconsistent with the claim

Image source Shanghai Municipal Consumer Protection Commission official website.

Evaluation

Covering brands such as Lanza and Antarctica

Let's diet, Antarctica, bananain in the overall review

This comparative test purchased 50 pieces of warm socks suitable for winter wear, of which 36 pieces were collected from e-commerce platforms such as Tmall, JD.com, Xiaohongshu, NetEase Koala, etc., and 14 pieces were purchased through brand stores, department stores, large supermarkets and other channels, covering brands such as Lansha, Antarctica, tutuanna, etc., with a single price of between 20 yuan and 357.11 yuan.

This comparative test focuses on the performance of products such as warmth, ventilation and anti-static that consumers pay more attention to when purchasing warm socks, mainly with reference to FZ/T73001-2016 "Socks" and other related standards, and tested the warmth, comfort (breathability, moisture permeability, anti-static performance) and wearability (hook performance, top breaking strength) and other indicators of the sample, and combined with the data for star evaluation.

The overall evaluation results show that Let's diet, Antarctica, Bananain banana and other samples scored three and a half stars, and The Yiyi sample score was at the bottom, only three stars.

50 pieces of "bare-legged artifacts" review: Lanza warm socks sample D value measured is inconsistent with the claim

Warmth

The measured Dan number (D value) of the Lanza sample does not match the claim

"MUJI", "NetEase Strict Selection", "Uniqlo" sample "thermal insulation rate" only won Samsung

At present, most products on the market use the method of adding fleece to improve warmth. Of the 50 samples purchased, 37 were fleeced and 13 were not piled. This comparative test tested the insulation rate. The results showed that the insulation rate of 50 samples was between 18% and 60%, of which the average insulation rate of 37 fleece samples was 43.0%, and the average insulation rate of 13 unflampled samples was 27.7%, and the test proved that the warming effect could indeed be achieved through fleece.

Many samples in this test claim to use graphene, far infrared and other specific fiber raw materials to achieve the purpose of keeping warm. After testing, the insulation rate of individual samples is not ideal. Such as the graphene pantyhose (nominal trademark: pierre cardin Peel. Cardan, nominal item number: JD1937090-020X1), its insulation rate is only 21%. Another example is the 110D velvet heating pantyhose (natural skin) (nominal trademark: MINISO) produced by Suzhou Yisheng Huaxin Information Technology Co., Ltd., whose packaging is marked "using far infrared heating technology, heat storage and warmth", but the thermal insulation rate is only 21% after testing.

At present, many commodities on the market claim that "the higher the number of dan (D value), the warmer it is", and even linked to the specific suitable temperature, such as 180D suitable for 12 °C -25 °C, 1000D suitable for 4 °C -15 °C, so the number of dan has also become an important reference index for consumers when purchasing. However, the test found that there is no direct relationship between the insulation rate and the level of the dan number.

Taking the two samples that are also not fleece as an example, the pantyhose nominally distributed by Dachuang (Shanghai) Commercial Co., Ltd. actually has a wire measurement density of 82.7D and a thermal insulation rate of 18%, while the pantyhose nominally produced and distributed by Hangzhou NetEase Yanxuan Trade Co., Ltd. actually has a wire density of 31.3D and a thermal insulation rate of 30%, although the former has a high number, but the heat preservation rate is far lower than the latter.

In addition, the test also found that of the 50 samples purchased this time, 16 claimed the number of dan, but after testing, only 3 samples were basically consistent with the claim, and the remaining 13 samples were quite different from the claim. For example, the sample purchased from the flagship store of Douyin Langsha Apparel underwear, its webpage declares "8000D", and then the Fukuan hip pants (nominal trademark: MengNa Mengna, nominal goods number: G4565) produced and sold by Zhejiang Mona Socks Co., Ltd., its product packaging is nominally "2800+DEN", after testing, the yarn dan number of the outer fabric of the two samples is (21.2+). 36.2) D and 54.1D, the number of dan calculated by testing shorter length yarns is also far from the declared value.

It is reported that the dan number is an internationally recognized unit of yarn fineness in the textile field, which refers to the weight of 9000 meters of yarn, such as 100 dan (D) means that the 9000 meters long yarn weighs 100 grams. The larger the number of dans, the heavier the yarn of the same length, and if it is the same material, the coarser the yarn. However, in the communication with some enterprises, it was learned that individual brands use self-created methods to measure Dan numbers and do not use internationally recognized unified benchmarks. For the products of GaoDan on the market, especially the claim of thousands of D, the actual situation needs to be examined, and the Shanghai Consumer Protection Commission said that consumers are advised to look at this kind of propaganda rationally.

In the evaluation of the "thermal insulation rate" dimension, the nominal trademarks "MUJI", "NetEase Yanxuan" and "Uniqlo" were only awarded three stars, and the samples with the nominal trademark name "MINISO" were only awarded two and a half stars. Ranked low.

Comfortable and breathable

None of the 19 samples had antistatic properties

This comparative test test detects air permeability and moisture permeability respectively. The results showed that the breathability of the 9 samples was relatively good, taking into account the warmth and comfort. The test results of moisture permeability show that the moisture permeability of 50 samples is greater than 10,000g/(㎡?24h), and all have good moisture permeability.

Winter is relatively dry, coupled with the material of warm socks are mostly chemical fibers, more likely to produce static electricity, on the one hand, it will adsorb the coat to affect the beauty, on the other hand, static electricity sometimes produces tiny sparks, and the body will have discomfort. The test results found that the charge of 19 samples was 0.7-1.0 μC/piece, which did not have anti-static properties. For example, the sample purchased from Pinduoduo Tianwang Fashion Women's Wear, its webpage declares that "the use of advanced anti-static flocking method", but after testing, its charge amount is 1.0μC / piece, does not have anti-static performance.

50 pieces of "bare-legged artifacts" review: Lanza warm socks sample D value measured is inconsistent with the claim

The sample webpage declares a figure. Image source Shanghai Municipal Consumer Protection Commission official website.

Wearability

Antarctica, "La Chapelle Homme La Chapelle" and other 10 samples

The claimed "anti-hook" effect is not measured

In actual wear, consumers often encounter the situation that the socks are hooked or even broken by nails or other sharp objects, especially the socks are more concentrated by the force of the toes, and they are more prone to holes, which is also one of the quality problems of consumer complaints. This comparative test test tests the top breaking strength (sock head firmness) and the hook wire performance respectively. The results showed that there were obvious differences in the top breaking strength of the 50 samples, with the lowest being only 54N and the highest reaching 538N, a difference of nearly 10 times. Among them, 5 samples < 100N and 5 samples > 400N.

The results of the hook performance test show that in addition to the excellent performance of 2 samples, the rest of the samples have different degrees of hook wire, of which 10 samples do not achieve the "anti-hook" effect declared on the web page, including "Antarctic man", "LA CHAPELLE HOMME La Chapelle" and other samples.

50 pieces of "bare-legged artifacts" review: Lanza warm socks sample D value measured is inconsistent with the claim

The source of the Picture is the WeChat public account of the Shanghai Municipal Consumer Protection Commission.

In this dimension, samples with nominal trademarks such as "LA CHAPELLE HOMME La Chapelle", "Let's Diet", and "Antarctica" ranked at the bottom, receiving only two and a half stars.

50 pieces of "bare-legged artifacts" review: Lanza warm socks sample D value measured is inconsistent with the claim

Partial test results. Image source Shanghai Municipal Consumer Protection Commission official website.

Consumption tips

"Bare-legged artifacts" should not be worn for a long time

Try to choose a product with anti-static function

The Shanghai Consumer Protection Commission said that the "bare-legged artifact" is largely a visual demand, and consumers should carefully check the symmetry of each part of the product and choose products with smooth surfaces, uniform fabric density, pure color and good shape. Choose a color that is closer to your skin tone and wear it to create a "bare leg" feel. In addition, you can also touch the thickness of the product. Usually thicker products, especially those with plush, are warmer. But if it is too thick, there will be obvious folds when the knee is bent. It is recommended to stretch the bending socks appropriately before purchasing to simulate the appearance when worn.

In addition, the winter climate is relatively dry, and the material of warm socks is mostly chemical fibers, which is more likely to generate static electricity. Static electricity reduces the moisture of the skin, which in turn increases dander. In addition, the dust adsorbed by static electricity may contain harmful substances such as bacteria, which can easily induce skin itching and skin inflammation. Therefore, the "bare-legged artifact" should not be worn for a long time, and try to choose a product with anti-static function when purchasing.

Consumers should also take proper care of warm socks. Many warm socks use fleece materials on the inner layer, when washing, it is best to face the inside of the fleece outwards, gently hand wash; if machine wash, try to use a laundry bag to avoid washing items with hard or metal objects and damage the warm socks. Avoid direct sunlight when drying makes the fibers lose their elasticity. Once the hook occurs, do not cut the coil of the hook, otherwise it is easy to cause a hole in the fabric, such as the hook is not serious, you can gently stretch along the direction of the coil, so that the yarn returns to the fabric.

Written by: Nandu reporter Xiao Yunhui

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