Introducing our hospital linen

Misunderstanding 1. The thicker the fabric, the better, and the thicker the more expensive

Not thick fabric is good, 4040 fabric is obviously thicker than 6040 fabric, 6040 fabric is obviously thicker than 6060 fabric, thick fabric has no sense of comfort. The thickness of the fabric has a lot to do with the thickness of the yarn, specifically, it is distinguished by its fiber count.

The count is related to the length and weight of the yarn. For example, one tael of cotton is made into 30 yarns with a length of 1 meter, that is 30 counts; 1 tael of cotton is made into 60 yarns with a length of 1 meter, that is 60 counts. Therefore, the higher the count, the softer and stronger the fabric, and the relatively thinner the fabric, the better the quality of the fabric. Obviously, the higher the count, the finer the yarn, the higher the requirements for equipment, the higher the quality of raw materials (cotton), the more expensive the price per ton of yarn, and the higher the cost of cloth.

Count is the most important index to measure the thickness of yarn. For example, the commonly seen "4040/12868" means 40 warp yarns and 40 weft yarns respectively, and the warp and weft density is 12868, which is also an important technical indicator for the purchase of linen supplies. The larger the count (commonly known as "high count"), the finer the yarn, and the more yarns are arranged per square inch, so the higher the density of the bedding with the same count, the better, and the higher the count, the higher the density. We often hear the term "high count and high density" fabric.

Misunderstanding 2. Fabrics with a sense of crispness are good

Hotel quilt covers, bed sheets, pillowcases, pillow covers and other linen will be starched after washing by regular washing companies. The purpose of sizing is to increase the stain resistance of the fabric, prevent the dirt from penetrating into the fiber, and create a "separation layer" between the dirt and the fabric. At the same time, the contaminated quilt cover sheet is easy to remove the dirt when washing.

Another purpose of sizing is to increase the stiffness of the fabric, prevent the fibers from fluffing, and have a good appearance. If the yarn count density of the fabric does not meet the standard, the so-called thickness of the fabric will be increased by sizing, but this thickness and stiffness are temporary and will disappear after being put into the water.

The last process of fabric gray fabrics of many manufacturers in the bleaching and finishing plant is also sizing, because the yarn count density of the fabrics cannot meet the standard. If the yarn count density of the fabric reaches the standard, it is not used for sizing treatment, but softener is added. The cost of softener is much higher than the price of size.

Misunderstanding 3. The fabric is very bright and is made of chemical fiber

After treatment, the shape of cotton fiber changes, the reflection of light becomes more regular, and the surface of cotton fiber becomes very shiny. Mercerizing is a process in the finishing process and has nothing to do with the material of the fabric. Factories that do not have mercerizing equipment use the calendering process. Calendering (also called calendering) is a process of flattening the surface of the fabric (fabric) and grinding off the fiber hairs (the hairs on the surface of the fabric) under hot and humid conditions to increase the luster of the fabric. The calender consists of several hard rolls and soft rolls with smooth surfaces. After the fabric is rolled by a combination of hard and soft rolls, the yarn is flattened, the surface is smooth, the luster is enhanced, and the hand feels stiff. However, the durability of the gloss effect of the fabric is poor, and it will gradually lose its luster after several times of water.

Calendering is a mechanical and physical treatment, while mercerizing is a chemical treatment, which are two different things. Therefore, if users think that the fabric is bright, thin, and made of chemical fiber, it is actually wrong. For the same fabric, mercerized is more expensive than non-mercerized (calendered).