With the approaching of the 315 International Consumer Rights Protection Day held once a year, some consumers’ calls reflect the quality problems and confusion they encountered in the consumption of leather products. For this reason, the reporter interviewed the China Leather Association and the national footwear quality inspection. The relevant experts of the center.
New shoes should not be left for a long time
Some consumers think that the new shoes purchased five years ago have not been worn for a long time. They just went downstairs and the soles are broken into pellets. What causes this? Is it a product quality issue?
In this regard, Qin Xiaobo, deputy director of the National Footwear Quality Inspection Center, said that at present, some casual leather shoes and sports shoes on the market are made of polyurethane soles, which are lightweight, flexible and comfortable to wear, but the polyurethane substrate under certain conditions Hydrolysis can occur. There are two reasons for this phenomenon: First, due to improper formulation of the product, it is prone to hydrolysis for a long time. Second, the aging of the polyurethane material is caused by the long storage time of the product. Based on this, it is recommended that consumers not leave it for a long time after buying new shoes. For the off-season shoes to be properly collected, the specific method is very simple, that is, the first cleaning and maintenance of leather shoes, after the shade in the shoe cavity filled shoes or clean soft materials, such as newspapers, cloth, etc., and put a little desiccant in storage Inside the shoe box, put it in a ventilated and dry place.
At the same time, shoes are consumer goods, aging and deterioration, so the state has stipulated a “three guarantees†period, and a period of three guarantees has expired. For example, after consumers have placed them for a long period of time, once problems arise, it is difficult to detect and identify them, even if the shoes do have With regard to quality issues, manufacturers can no longer accept them, and consumers’ rights cannot be maintained.
It is normal to have a slight decoloration in the leather
Many consumers also believe that the new leather shoes they bought soon after wearing some shoes will appear leather bleaching, I do not know whether it is a quality problem?
Qin Xiaobo explained that the decolorization of leather in shoes is mainly caused by technological reasons. Shoe leather is usually made of pig leather or sheep leather. Considering the breathability and wearing comfort, there are many brands that use light coating or even no finishing on the leather finishing layer of shoes. In the process of wearing, the pigment paste of the finish may be discolored or the migration of the dye in the leather may stain the socks.
Therefore, slight discoloration when wearing leather shoes is normal. To avoid this problem, consumers are advised to buy light-colored shoes or shoes with colors close to socks.
Of course, if the discoloration is very serious and even affects normal wear, it is a quality problem. This point is clearly stipulated in the National Standard for Leather Shoes (QB/T 1002-2005). Under such circumstances, consumers can legally safeguard their legitimate rights and interests in accordance with relevant regulations.
Leather exposure to formaldehyde does not produce formaldehyde
Some media have issued warnings to consumers that car leathers will emit harmful gases such as formaldehyde after being exposed to the sun, and they are not easily distributed. Is this statement credible?
According to Chen Zhanguang, deputy secretary-general of the China Leather Association and director of the leather sign office, automotive leather is a natural leather coated with resin and other chemical materials. Some of the chemical materials are produced with a very small amount of volatilization and produce special flavors. They are said to be in the industry. For leather taste, if the car is kept in a closed state for a long time, the smell will be aggravated to a certain extent. However, this is a normal phenomenon. It is definitely not a toxin reported by some media reports and will not cause harm to the human body.
Experts pointed out that automobiles are high-end consumer goods. Automobile manufacturers have higher requirements for formaldehyde and other harmful substances in addition to national and industry standards for automotive leather and have strict quality control. At the same time, there are strict requirements for the release of chemicals at different temperatures in leather. Therefore, consumers do not have to worry about "leathers will produce formaldehyde and other harmful substances."
Chen Zhanguang also added that at present, with the continuous improvement of China's science and technology, not only is the tanning technology of our country increasingly advanced, but also the chemical materials used are becoming more and more environmentally friendly. For example, the formaldehyde that was used to coat tinctures or fix leather has been used. Basically abandoned, replaced by eco-friendly tanning agent and cross-linking.
Purchase attention to rational analysis
So, what are the advantages and disadvantages of leather products and leather substitute materials? How should consumers choose?
Li Yanping, deputy director of the Leather Labeling Office of the China Leather Association, said that natural leather is elegant in texture, comfortable to wear, and possesses breathable, skin-friendly, warmth-keeping and environmental protection properties. It is a high-quality raw material for making leather shoes, leather garments and leather bags. However, due to the high price of natural leather, some leather garments, leather shoes and leather bags are now made of synthetic materials. Although the composite material is less comfortable to wear, it is also popular in the market because of its rich colors and low price. Consumers should make a rational analysis based on their merits and demerits, and make choices based on their needs. In particular, they should look for materials and avoid buying fake products and shoddy products.
Similarly, natural fur products are made of rare animal skins, so the price is high, resulting in low-grade fur imitation of high-grade fur imitation and substitute materials. Because of advanced technology, these manufactured products are difficult for experts to distinguish, and it is even harder for ordinary consumers to distinguish between them.
Experts suggest that when consumers purchase leather products, they choose products that carry the “sports logo†sign. "Leather Logo" is a certification trademark registered by the China Leather Association in the State Administration for Industry and Commerce in 1994. It is a symbol of middle-to-high grade natural leather, fur and its products. It is synonymous with quality environmental protection products and after-sales services.
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