Meltblown Fabric Buying Guide

Hot-rolled non-woven fabrics are non-woven fabrics made of traditional materials. Hot-rolled non-woven fabrics refer to the last web-forming technology in the production process of non-woven fabrics, which is a process for fabricating fabrics after cooling and laying.



The main raw materials of hot-rolled non-woven fabrics:

1. Natural fibers: cotton, wool, hemp, silk;

2. Conventional fibers: viscose fiber, polyester fiber, acetate fiber, polypropylene fiber, polyamide fiber;

3. Differential fibers: superfine fibers, special-shaped fibers, low melting point fibers, high crimp fibers, antistatic fibers;

4. High functional fiber: aramid fiber, carbon fiber, metal fiber.

Process flow of hot-rolled non-woven fabric:

Cotton feeding: Manually put the raw staple fibers on the long curtain in proportion to the long curtain and transport it to the entrance of the cotton mixer.

Cotton blending: 1. The amount of cotton fed into the cotton feeder is controlled by photoelectricity, and the amount of cotton stored in the cotton blender is sent to the entrance of the opener with a quantitative thickness or weight.

Opening: The feeding part is controlled by the photoelectric control of the cotton feeder, and the opened raw staple fibers are sent to the cotton feeder by a fan through the material pipeline.

Cotton feeding: The photoelectric switch is used to control the raw material staple fiber sent from the opener through the photoelectric instrument on the diagonal nail curtain to control the feeding amount of the raw material short fiber sent to the entrance of the carding machine.

Pre-carding: Use frequency conversion to control the input thickness or weight to manually fine-tune the speed of the frequency conversion machine and send it to the laying machine.

Laying: The raw material entering the netting machine is cross-folded horizontally and longitudinally with more than 5 layers and the sheet-like staple fibers are sent to the main carding machine.

Main carding: The flake short fibers sent from the web laying machine are controlled by frequency conversion, and the raw short fibers are carded by the cylinder, work roll and stripping roll, and the raw short fibers are transferred to the random roll by the doffer. The messy roller disrupts the fibers to increase the transverse strength, and the stripping roller peels off the forming web from the messy roller and sends it to the fiber web conveying curtain for three-layer compounding. into the cotton feeder.

Hot rolling The sheet-like raw material staple fibers entering the upper and lower hot rolls of the hot rolling mill from the main card machine are hot-pressed to the temperature and pressure required by the process through the control and adjustment of the temperature and pressure of the hot rolls. *The temperature of the hot roller is sent to the upper and lower hot rollers by the heating oil furnace, and the hot oil of 235 to 240 ℃ is pumped by the hot oil. *The pressure of the hot roller is provided by the air compressor and enters the pressure regulating cylinder through the pressure regulating device with an upper pressure of 1.2 MPa and a lower pressure of 0.8 to 0.9 MPa.

Coiling The products coming out of the hot rolling mill are wound into coils with a maximum diameter of 800mm after trimming and measuring the length.

Finished product inspection and weighing According to the product quality standard sampling and testing its physical indicators, each roll of product can be weighed.
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Non-woven fabrics can be seen everywhere in today's society. Non-woven fabrics are composed of directional or random fibers and are a new generation of environmentally friendly materials. Its own product characteristics are related to the processing technology. Different processing technology has different characteristics of non-woven fabrics. Next, what is non-woven fabrics?





Non-woven fabrics are moisture-proof, breathable, flexible, light in weight, non-combustible, easy to decompose, non-toxic and non-irritating, rich in color, low in price, and recyclable. Polypropylene pellets are mostly used as raw materials, and are produced by a continuous one-step method of high-temperature melting, spinning, laying, and hot-pressing coiling. It is called cloth because of its appearance and certain properties.


The non-woven fabric has no warp and weft threads, so it is very convenient to cut and sew, and it is light and easy to shape. Because it is a fabric that does not require spinning and weaving, it just orients or randomly arranges textile staple fibers or filaments to form a web structure, which is then reinforced by mechanical, thermal bonding or chemical methods.


It is not interwoven and braided by yarns one by one, but the fibers are directly bonded together by physical methods, so when you get the sticky scale in your clothes, it will Found that it is impossible to extract a single thread. Nonwovens break through the traditional textile principles, and have the characteristics of short process flow, fast production rate, high output, low cost, wide application, and many sources of raw materials.


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GSM in Non-Woven Fabric: Understanding the Basics and Applications

Introduction to GSM Measurement in Non-Woven Fabric

Non-woven fabrics have become an integral part of our daily lives, from hygiene products to geotextiles. When it comes to the manufacturing and quality control of non-woven fabrics, GSM (Grams per Square Meter) plays a crucial role. GSM measurement helps in determining the weight per unit area of the fabric, providing insights into its strength, durability, and various applications.

Why GSM Measurement Matters in Non-Woven Fabric

GSM measurement is essential in the non-woven fabric industry as it directly affects the fabric's final properties and performance. By knowing the GSM, manufacturers can control the desired thickness, absorbency, and strength of the fabric. Understanding the effect of GSM on the fabric also assists in selecting the appropriate material for specific applications.

How GSM is Calculated in Non-Woven Fabric

GSM calculation involves weighing a known size of fabric and measuring its area. The formula used is simple:

GSM = (Weight of Fabric in Grams / Area of Fabric in Square Meters)

The weight of the fabric is measured accurately on a scale, and the area is determined by multiplying the length and width of the fabric sample. The resulting GSM value represents the weight of the fabric per unit area in grams per square meter.

The Significance of GSM in Non-Woven Fabric Applications

GSM is a critical parameter that determines the fabric's intended use. Different non-woven applications require specific GSM values to meet the desired functionality and performance. Here are a few examples:

4.1 Hygiene Products

For products like diapers, feminine hygiene pads, and wipes, a higher GSM is preferred for improved absorbency. This ensures that the product can retain liquids while maintaining its integrity.

4.2 Medical Textiles

In medical applications, non-woven fabrics with lower GSM values are often preferred due to their breathability, allowing for proper air circulation and reducing the risk of bacterial contamination.

4.3 Filtration Media

Non-woven fabrics used as filtration media require a specific GSM to ensure effective particulate removal. Depending on the target application, higher or lower GSM values may be required to achieve the desired filtration efficiency.

4.4 Geotextiles

Geotextiles, used in civil engineering for erosion control and soil stabilization, require high GSM values to provide adequate strength and durability. The fabric should be able to withstand environmental stressors, such as UV exposure, moisture, and mechanical loads.

4.5 Apparel and Home Textiles

Non-woven fabrics with varying GSM values find applications in apparel and household textiles. Higher GSM fabrics are used for sturdy bags, while lower GSM options are employed for disposable clothing items or cleaning wipes.

Quality Control and GSM Monitoring

To ensure consistency and adherence to specifications, quality control procedures play a crucial role in the non-woven fabric industry. Regular GSM monitoring is essential, especially when producing fabric in large quantities. Manufacturers utilize automated systems combined with visual inspection to maintain desired GSM levels, identify any deviations, and take corrective actions promptly.

In conclusion, GSM measurement is a fundamental parameter in the non-woven fabric industry, providing insights into the fabric's weight, thickness, and overall performance. By understanding GSM and its significance, manufacturers can produce fabrics tailored to specific applications, ensuring the desired functionality and durability. Quality control procedures, including regular GSM monitoring, are essential to ensure consistent production and adherence to specifications. With advancements in technology and a deeper understanding of non-woven fabric properties, the possibilities for innovation and application continue to expand.

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