Don’t wash jeans in the washing machine often, as they are easy to lose shape. Before washing, you need to do color preservation treatment: put the jeans in a basin with water, add two spoons of white vinegar, and soak for half an hour to prevent the color from fading. It won't be that serious.

When washing jeans, remember to turn them inside out, which can effectively reduce fading. Hang them from the waist, turn them over to dry, and dry them in a dry and ventilated place to avoid sun exposure.

It is best not to dry clean or machine wash the jeans for the first time. It is best to wear them on yourself and wash them. This will make the jeans more in line with your leg shape. Please do not soak jeans in hot water, as this will cause a great degree of shrinkage. Generally, the water temperature should be controlled at around 30 degrees.

1. Jeans are also called "strong trousers". Detergents containing high formaldehyde content are used in the dyeing and bleaching process of jeans.

2. The famous name "Jeans" was only officially adopted by Levi's Company in the 1860s. Before that, people called it "waist-length overalls" and "pants".

3. The Hollywood film and television entertainment industry in the United States has played an important role in promoting the international popularity of jeans. In the 1960s and 1970s, the widespread popularity of rock music and the influence of the hippie lifestyle on teenagers made denim clothing even more popular. Since then, this piece of denim clothing, which came from humble origins, has become worth a hundred times as much and has remained popular for a long time.

4. In people’s minds, classic jeans should look like this: topstitching, patch pockets, labels and other decorations. However, the earliest jeans were not what people imagined.

5. The exact date of the birth of jeans is May 20, 1873. On this day, the Patent and Trademark Office issued a patent for overalls to two immigrants, Levi Strauss and Jacob Davis. This kind of work pants is made of a kind of "denim", which has been reinforced during sewing, and brand-new copper buttons are used in the pockets and doors.

6. This idea was proposed by Nevada tailor Davis. And Davis was a customer of Strauss. Strauss was the owner of a haberdashery at the time. With this new trouser style, Strauss hoped to satisfy the demands of gold miners who often complained that the pockets of their trousers could not hold the gold particles they carried inside.