Sanitary towel patent

The invention of sanitary napkins was attributed to American female nurses who served in France during the First World War. These women in light white clothes are pioneers of modern professional women. Even during menstruation, they still have to maintain that elegance, agility and skill, so they made a bold attempt on menstrual products: the earliest sanitary napkins were made of bandages and cotton wool. Since then, sanitary napkins have quickly become women's best friends. It is said that the first advertisement for disposable sanitary napkins was launched by American bandage manufacturers. In China, many women still have the memory of not having sanitary napkins in their girlhood: menstrual belts that can never be cleaned and thick folded menstrual paper, and there are always a few days every month, so you should be very careful when lying, sitting, getting up and walking. "15 years ago, when I first saw sanitary napkins, I was shocked!" Deya, 30, said: "Menstruation can be so refreshing, convenient and even so luxurious!" Nowadays, sanitary napkins have become a common commodity in our lives, and their convenience and thoughtfulness are unimaginable to women in the past. From rough to delicate, from helplessness to autonomy, from inferiority to pride, from bondage to freedom, sanitary napkins tell the cycle and story of women. The origin of tampons can be traced back to 1929, and its inventor is Dr. Earl Cleveland Haas of the United States. Dr. Haas is an ordinary doctor. He spends most of his spare time on inventions. At that time, Dr. Haas's wife felt that the use of thick sanitary napkins for external use brought a lot of inconvenience, which made Dr. Haas sprout the idea of doing something for his wife. In surgery, doctors or nurses often use cotton or gauze to absorb bleeding. Dr Haas applied this practice to the use of menstrual hygiene products for women. He invented the first built-in tampon in the world. Dr. Haas's invention was patented by 1933, and it was named "TAMPAX". Soon, the American market began to sell Tan bicks tampons for internal medicine, and Dan bicks brand was also famous as the first brand of internal medicine. In BC 1550, it was recorded in Egypt that soft cloth was put into women's vagina to prevent pregnancy. Experts infer that these soft cloths are also used to cope with menstruation, which is probably the first generation of "sanitary napkins" as we know them. Modern sanitary napkins are said to have been invented by an American man who loves his wife very much. He happened to find that wrapping clean cotton fibers and absorbent paper pulp with soft cloth as long cotton pads can effectively alleviate the pain and inconvenience of his wife's menstrual period. This kind of cotton pad became popular in Europe and America in the 1940s, and gradually developed into a disposable material. Sanitary napkins are composed of the following parts. Nonwoven fabric/pure cotton 1- absorbent cotton 2- plastic film 3- nonwoven fabric/pure cotton 4. The first layer: the surface of the towel is made of non-woven fabric or pure cotton, which can be selected. Because some women have sensitive skin, they will feel uncomfortable when touching the surface of non-woven towels, so they can choose cotton structure. The function of the second absorbent cotton is to absorb liquid. Degreased cotton can absorb liquid amazingly and quickly. As for the plastic film of the third layer, it is used to provide protection and avoid leakage, but it is generally U-shaped and surrounded by absorbent cotton on three sides, which also plays a role in preventing side leakage. It is precisely because of the existence of this layer that some people say that cotton sanitary napkins are not more environmentally friendly than non-woven sanitary napkins, because no matter what kind, there are plastic films inside. The fourth layer is non-woven fabric or pure cotton, which is laminated with the first layer, and the second layer and the third layer are encapsulated inside, thus becoming a whole. The fifth layer is adhesive tape, which is composed of adhesive tapes of different sizes and quantities, and plays the role of fixing position and avoiding movement. In the development of modern sanitary napkins, these parts have also been improved a lot, which are more humanized and fashionable, attracting consumers' attention from different angles. Thereby subdividing consumer groups. In the first sanitary napkins, the adhesive tape is just a long and wide piece, which is attached to the back. Although it played a fixed role, it was not done well because the area was too large. Therefore, when the underwear is taken off after use, it will be torn and adhered in a large area, leading to pilling, and only the fixing of the middle strip will cause the left-right deviation, leading to side leakage. Therefore, in addition to improving the U-shaped plastic film to prevent side leakage, it also increases the appearance of the important part of "wing protection". The improvement of the back glue has changed from a wide one to two separate strips. Up to now, the back glue on the wing has also changed from the original one to a square back glue on both sides. This seven-point lock is enough for the sanitary napkin to firmly guard the column and will not move easily. Ooo ■■■■〓〓〓≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡𕫡𕫡𕫡≡𕫡≡≡8 The improvement of plastic film is nothing more than changing from plane to U-shape, which avoids the occurrence of side leakage. The biggest and most improved thing is towel noodles. At first, the surface of the towel was a square non-woven fabric, and then it gradually changed, adding different functions respectively. Improvement of cutting technology: By means of stamping, uneven parts appear on the towel surface, so that the liquid can enter the groove directionally and be absorbed quickly, avoiding the phenomenon that the original smooth surface overflows everywhere and affects the absorption speed. By increasing printing (dark flowers) and making small hollows on the surface of towels, on the one hand, absorbent cotton is prevented from drilling out, on the other hand, the area and infiltration space are increased, which is beneficial to rapid absorption. The monotonous white or light blue of the towel body is added, and the concept of colored sanitary towel appears. Many people think that the concept of colored sanitary napkins was first introduced at the ceremony. In fact, this is not correct. The first colored sanitary towel in China market should be a black lover introduced by Hushubao (a well-known brand, which may be mistaken) around 200 1, and it is an all-black towel body. As a tentative market behavior, it disappeared without large-scale publicity. Now that I think about it, black is not a good choice. It can really avoid some women's embarrassment about "stains", but black is not conducive to judging whether it should be replaced. Therefore, this will be a successful business plan before the large-scale promotion of ritual color sanitary napkins in the summer of 2002. Some people think colored sanitary napkins are really gilding the lily. What color sanitary articles in it will affect the mood. But in summer, women's clothes are very thin, and generally they consciously wear dark thick pants to avoid making a fool of themselves. Because wearing pants of other colors, it is easy to expose the body of a white towel, causing embarrassment. A friend once told me a thing: a fashionable woman, wearing light-colored gauze trousers, is very fashionable, and red T-back+white night sanitary napkins are on the market ... 0 1 1 ... Abandoning the red thong and choosing a sanitary napkin with a color close to the underwear will avoid some unnecessary embarrassment, and the tension may be calmed down. In addition, some three-dimensional fences are introduced to avoid side leakage, and two short wings are added to prevent side leakage. In addition, there is a sanitary napkin, which has not been introduced in China. In order to improve the three-dimensional protection, the towel body is shallow W-shaped. This cut shape can prevent the skin from directly contacting the towel surface to some extent. Peach once said in her menstrual theory that women have to live in a cold and humid environment for a few days every month, but new products can alleviate this pain to some extent. This is also a manifestation of humanity. That's all the sanitary napkins. By the way, tampons. Danbis was the first to promote tampons in China, and I believe many people who watched TV in the 1980s should have seen its TV advertisements. A female friend asked her to go swimming, and she said that 8 days is convenient. Then her friend recommended her to use Danbis, and finally she jumped into the water ... This advertisement was also shot by BT ... At that time, due to conceptual problems and relatively high prices, not many people used it, and the product was too huge. The combination of catheter and tampon and the inconvenience in use make many people flinch. Later, the appearance of B.B. greatly improved these. Small size, smooth appearance and more convenient placement. The use of double cotton thread has dispelled many concerns about cotton thread breakage. In addition, the attached plastic finger cover also solves the hygiene problem. Therefore, some friends say that the plastic finger covers of tampons are not environmentally friendly, but the plastic finger covers of tampons can be discarded separately from tampons, and garbage can be classified, but the plastic film inside sanitary napkins is indeed integrated, so tampons are relatively environmentally friendly. Note that the use of cotton sliver is to pull the cotton rope first, cut it around and then put it in, so that the cut umbrella tail can avoid leakage.