Hygiene: Harbin 3-strand twisted rope wholesale It is a natural fiber, and its main component is cellulose, with a small amount of waxy substances, nitrogenous substances and pectin. After various inspections and practices, the pure cotton ribbon has no stimulation or negative effect when contacting with the skin. It is beneficial to the human body and has good sanitary performance after being worn for a long time. Heat resistance: Harbin customized 3-strand twisted rope The heat resistance is good. When the temperature is below 110 ℃, it will only cause water evaporation on the webbing and will not damage the fiber. Therefore, the use, washing, printing and dyeing of pure cotton webbing at room temperature have no impact on the webbing, which improves the washing and wear resistance of pure cotton edging webbing.
The tensile strength after light treatment, the natural light shines on the bag webbing through the window, causing aging and reducing its strength. According to the working conditions, a lighting equipment is designed, which is equipped with representative strong light and is exposed to the light for a specified time. After lighting, pp webbing needs to be subjected to standard temperature and humidity treatment, and then to tensile test to obtain the tensile strength after lighting treatment. After soaking, the tensile strength of the safety belt installed in the car will absorb the moisture in the air, and sometimes it will be soaked by some liquid, so the immersion test is required. At room temperature, fully immerse in distilled water with a small amount of wetting agent for a specified time, and then take out the soaked pp webbing from the water to complete the tensile test within 10 minutes. The tensile strength of soaked pp webbing was obtained.
How much does a yard weigh? This is for accurate quotation. If you calculate the weight of one yard, you can know how much material is used for this yard of webbing. Is it single-sided or double-sided? Some are divided into single side and double side, so this should also be asked clearly. There are pictures for reference. This is to give us a visual judgment of what is, and give us a more accurate factor of quotation. How many are there? This is a matter of deciding whether to give customers a discount. If there is a large quantity, there must be a discount. Combine factors such as the wages of the factory, the master and the workers.
The progress of process technology has brought about the upgrading of edging webbing products. In 1979, the trial production of the domestic generation SD9-9 rubber ingot belt was successful, which ended the history of rubber ingot belt products relying on imports. After the weft tube is formed by the yarn warp cylinder and weft winding, it is inserted on the fixed gear seat of the knitting machine, and the weft tube rotates along the 8-shaped track to draw the yarns to cross weave with each other. Usually, the number of spindles is even, the woven tape is tubular, the number of spindles is odd, and the woven tape is flat. Spindle weaving technology has been applied since old China. The number of spindles varies from 9 to 100 due to different equipment.
There are two primary methods for coloring, one is to apply it to a wide range of dyeing (conventional dyeing), and the first is to treat it in chemical dye solution. The other method is to use paint to make the paint into tiny insoluble colored particles to stick to the fabric (dyeing of fibrous material stock solution is not included). Acid dyes are mostly suitable for protein fiber, nylon fiber and silk. It is characterized by beautiful color, poor washing degree and excellent dry cleaning degree. It is widely used in natural dead dyeing.
