Non woven fabric is a type of non-woven fabric made by combining oriented or randomly arranged fibers through friction, interlocking, or bonding, or a combination of these methods to form a sheet, web, or pad. This material has the characteristics of moisture resistance, breathability, flexibility, light weight, non combustible, easy decomposition, non-toxic and non irritating, rich color, low price, and recyclability.
Non woven fabrics can be subjected to hot pressing treatment
In the production process of non-woven fabric, the needle punched non-woven fabric production method can be used to make raw materials such as polyester and polypropylene, which are subjected to multiple needle punctures and appropriate hot pressing treatment. This indicates that non-woven fabric itself can accept hot pressing treatment. In addition, non-woven hot press machines are widely available in the market, with various models and specifications to choose from, such as embossing machines, PUR hot melt glue laminating machines, ultrasonic non-woven hot press laminating machines, etc. These devices are specifically used for the hot press processing of non-woven fabrics, indicating that hot press processing of non-woven fabrics is very common in practical production and application.
Hot pressing method for non-woven fabric sealing technology
Non woven fabric sealing refers to the process of processing non-woven fabric and using certain sealing techniques to interweave the fibers inside the non-woven fabric, forming a whole and achieving the sealing effect. The sealing of non-woven fabrics generally adopts various technical methods such as heat sealing, adhesive sealing, and ultrasonic sealing.
Analysis of Hot Pressing Sealing Technology
Hot pressing sealing technology refers to the process of interweaving the fibers inside non-woven fabric through hot pressing during the non-woven fabric processing to achieve the sealing effect. Because hot pressing sealing technology can tightly interweave non-woven fibers, thereby improving the sealing and waterproof properties of non-woven fabrics, it is more common in the sealing process.
Can hot pressing be used for sealing?
Non woven fabrics can be sealed using hot pressing method. However, it should be noted that temperature and pressure should be taken into account when sealing. Excessive temperature and pressure may cause the non-woven fabric to melt or deform, affecting the sealing effect of the non-woven fabric. Therefore, when performing non-woven fabric hot pressing sealing, the temperature and pressure of the hot pressing should be controlled well to ensure the quality and sealing effect of the non-woven fabric.
Advantages and disadvantages of hot pressing sealing technology
The advantage of hot pressing sealing technology is its good sealing effect, which can tightly interweave non-woven fibers, achieve good sealing and waterproofing, and the process is relatively simple with a wide range of applications. The disadvantage is that it is necessary to control the temperature and pressure of the hot pressing, as excessive temperature and pressure may cause the non-woven fabric to melt or deform.
In short, non-woven fabrics can be sealed using hot pressing method, but attention should be paid to the temperature and pressure of hot pressing. Excessive temperature and pressure may affect the sealing effect of non-woven fabrics. In addition, hot pressing is not the only way to seal non-woven fabrics. Depending on the characteristics and requirements of non-woven fabrics, appropriate sealing techniques need to be selected.
What is the temperature that non-woven fabric can withstand?
Flame retardant non-woven fabric can withstand higher temperatures, and generally a cigarette butt will not melt a hole when it touches any place. The melting point of other materials is related to the non-woven fabric material:
(1) PE: 110-130 ℃
(2) PP: 160-170 ℃
(3) PET: 250-260 ℃
So, although non-woven fabrics of different materials can withstand different temperatures, we can see from the article that they can withstand relatively high temperatures, but it does not mean that they can be used in high-temperature environments for a long time.
Is the hot pressed non-woven bag made by machine?
The reason why flat car processing has better sales than adhesive processing is mainly due to its higher strength and more complex varieties. But the adhesive has a beautiful appearance and saves labor, basically does not require any technology, and requires less investment. Flat car workers need to be proficient, especially in exporting. If there is only one person in a production process, it is difficult for the bag to be qualified. Usually, it is processed by flat car and then bonded.
If your customers have stronger requirements for the appearance quality of the bag than for its strength, bonding is better. Recently, PP prices have increased, and fabric has also become more expensive. It has increased by less than 1000 yuan, about seven or eight hundred yuan. The price is hard to say. Generally, darker colors are relatively more expensive, and in addition, each production line has blind spots in color production, and the price also varies. The price also varies depending on the weight. The price varies depending on the quantity purchased.
Dongguan Liansheng Non woven Technology Co., Ltd. was established in May 2020. It is a large-scale non-woven fabric production enterprise integrating research and development, production, and sales. It can produce various colors of PP spunbond non-woven fabrics with a width of less than 3.2 meters from 9 grams to 300 grams.
Post time: Sep-06-2024