Views:100000005 Author:Kiki Publish Time: 2021-05-10 Origin:Wikipedia abstract、original
Sanitation napkin, also known as sanitary cotton, is a kind of absorbent substance, the main material is cotton pulp and polymer absorber, used to absorb women's menstruation, the outflow of menstrual blood from the vagina, not only can avoid menstrual blood dirty clothes, but also reduce the discomfort for the vagina.
The structure of sanitary napkin can be divided into surface layer, inner layer, side and back glue.
The surface layer is the part that is in direct contact with the skin, and its material must be soft. The texture and indentation of the surface determine the effect of absorption and non-reinfiltration of menstrual blood. PE surface layer and cotton surface layer are the two most commonly used materials. PE surface layer and microporous design can make menstrual blood not easy to reinfiltrate, so that users have a dry feeling, but the material is hard, some users will cause allergic reactions. Due to the improvement of cotton absorbency design, the market share of PE surface sanitary napkin is gradually higher after 2001.
But how much do you know about the cotton surface of sanitary napkins?
With the development of industry and the improvement of living standards, the demand for textiles in various fields is also getting higher and higher. The textile industry is also bringing forth the new through the old, and various new craft fabrics emerge in endlessly. Today, we will look at the difference between spunlaced non-woven fabric and pure cotton.
Simply put, spunlaced nonwoven is a term used to describe the fabric of a particular process, while pure cotton is a term used to describe the material of the fabric.
Let's look at what is spunlaced nonwoven.
Spunlaced non-woven cloth, also known as "jet jet net into cloth". The concept of "jet net into cloth" comes from the mechanical needling process. The so-called "jet jet net" is the use of high pressure water flow into the fiber net, so that the fiber intertwined, so that the original loose fiber net has a certain strength and integrity of the structure. Its technological process is as follows: fiber metering and mixing -- opening and loosening to remove impurity -- mechanical disarray carding into net -- fiber net prewetting -- water needle winding -- surface treatment -- drying -- reeling -- inspection -- packing and storage. Jet jet net device is the use of high-speed flow of high pressure water jet fiber net, so that the fiber net in the rearrangement of the fiber, wound each other, into a complete structure, with a certain strength and other properties of the non-woven fabric. The physical properties of this spunlaced non-woven fabric are different from the common needle-punched non-woven fabric, and it is the only non-woven fabric that can make its final product similar to textiles, both in terms of feel and performance.
Spunlaced cloth with its most like the characteristics of textiles, excellent physical properties, cheap and good quality has become the most potential competition with the textile market.
And pure cotton refers to the fabric produced with pure natural cotton fiber. It is one of the raw materials used in spunlaced nonwoven fabrics. In addition to pure cotton, spunlaced non-woven fabrics will also be made of polyester, viscose and other materials.