What Is Non Woven Rice Bag Manufacturer?

The main factors affecting the barrier properties of SMS non-woven fabrics are as follows:
1. Product Quantity: The larger the product's quantification (g/㎡), or the greater the proportion of the meltblown layer fiber web , the hydrostatic pressure is also higher, but the strength of the product will decrease, the cost of raw materials will increase, the energy consumption will also increase, and the production cost will also increase.
2. Temperature: The higher the temperature of the melt and the drafting wind, the easier it is for the thin stream of the melt to be drawn into fine and thin, the smaller the diameter of the fiber, the smaller the average pore size of the product, the smaller the hydrostatic pressure higher.
3. DCD of melt-blown system: The size of receiving distance DCD affects fiber drafting, cooling and product density. When the DCD is small, the product uniformity is good, the density is high, the barrier performance is good, the hydrostatic pressure is high, and the air permeability is poor; Good breathability and feel good. DCD has an optimal value, generally between 100 and 200mm.
4. Melt flow rate or spinning pump speed: The diameter of the fiber is proportional to the melt flow rate, that is, is proportional to the rotational speed of the spinning pump, and is inversely proportional to the flow (speed) of the drafting wind . When producing products of the same specification, reducing the speed of the production line can improve the barrier properties of the product, that is, when the output is low, the product will have a higher hydrostatic pressure, which is a process measure that is often used in the production process. Controlling the barrier performance of the product by changing the flow rate of the melt, the rotational speed of the spinning pump, or the output is essentially changing the flow rate of the melt in the spinneret hole.
5. The hole density of the spinneret: When using a spinneret with a high hole density for production, the hydrostatic pressure of the product is higher than that produced with a spinneret with a lower hole density. The essence is that under the same spinning pump speed, the single-hole flow rate of the high-hole density spinneret is smaller and the fiber is thinner. At present, the hole density of domestic general meltblown systems is 35-42 inches, with a maximum of 50 per inch; that is, equivalent to 1378-1654 per meter, with a maximum of 1969 per meter.
6. The uniformity and fiber fineness of the spunbond web: The uniformity of the spunbond web has a great influence on the barrier properties of the product. The worse the uniformity, the more discrete the hydrostatic pressure distribution; The fiber fineness determines the coverage and average pore size of the fiber web. The smaller the fiber diameter, the better the barrier performance of the product.
7. Finishing processing: When the product is cut off-line, if the tension is not properly controlled, the excessive winding tension will damage the structure and barrier properties of the product. Similarly, the post-finishing of the product will also affect the barrier performance of the product. For example, during antistatic finishing, if the finishing agent contaminates the meltblown layer, the barrier performance will decrease or even disappear. In addition to affecting the hydrostatic pressure of the product, the post-finishing process of the product will also affect the physical properties of the product, such as a decrease in breaking strength, a decrease in elongation, and a poor feel.
8. Raw materials: The flow characteristics of raw materials will affect the quality of products. The higher the MFI, the better the fluidity of the melt, the easier the drawing of the melt stream, and the better the barrier properties of the product. The MFI of the currently commonly used polypropylene (PP) raw materials is between 1200 and 1500.
9. Environment: The melt-blown fiber web is self-bonded to become a melt-blown cloth by relying on waste heat. The temperature of the environment will affect the cooling effect. The lower the temperature, the faster the cooling of the melt-blown cloth, and the quality of the product. Better, especially 'crystal points' are not easy to appear. Therefore, for a meltblown system, a product produced in the winter or at night would be better than a product produced in the summer or during the day. Some meltblown systems are equipped with cooling devices. The biggest advantage is that the environmental conditions are stabilized, crystal points rarely appear, and the controllability of product quality is improved.

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Non-woven fabrics, commonly known as lazy man films, have begun to be used in large-scale rice seedbeds. They are quickly accepted by the majority of rice farmers due to their advantages such as no roasting of seedlings and convenient operation.
1. How to use the non-woven fabric
(1) The non-woven fabric is laid on the bottom of the pan
1. Advantages
The effect is the same The gauze, the seedling tray is not clay when the seedling is raised, which can improve the efficiency of the seedling.
2. Disadvantages
(1) When the seedbed is too viscous or wet, during the pan placement process, it is impossible to level with the floating soil when stepping out of the footwell, which will easily lead to the part of the seedling pan. Hanging in the air, it is easy to dry out later.
(2) Increase the cost.
(2) Lay the non-woven fabric on the tray
After sowing and covering the soil, lay the non-woven fabric flat. If the seedbed is covered with double layers, the mulch should be placed on the non-woven fabric.
Second, objective evaluation of non-woven fabrics
(1) Advantages
The service life of non-woven fabrics is generally 3 years.
1. Breathable function
The non-woven fabric has micropores, which can be naturally ventilated after sowing and before seedlings.
2. Moisturizing function
After the rice seedlings emerge, the non-woven fabric has an obvious moisturizing effect, which will reduce the frequency of watering the seedbed.
3. Warming function
----The maximum temperature in the non-woven fabric is 9-12 degrees lower than that of the plastic film, and the lowest temperature is 1-2 degrees lower than that of the plastic film;
----Non-woven fabrics are not like mulching films, which are easy to cause the phenomenon of roasting seedlings. The uncovering time is relatively wide.
4. Water permeable function
----The seedling strengthening agent is applied to farmers, and the non-woven fabric is spread before watering, which can prevent the seedling strengthening agent from shifting and causing the phenomenon of burning buds .
----After sowing and before seedlings, if the seedbed is short of water, cover with non-woven fabric during the watering process to prevent the scouring of the soil from causing the seeds to be exposed.
5. Convenient pre-seedling operation
----Before the non-woven fabric is peeled off, after the seedlings emerge, if the top cover is found, press the seedbed lightly with the seedling, and the seedling does not stick bed soil.
----In the process of uncovering the cover, it is relatively easy to operate. After the plastic film is wet, it is not easy to spread.
(2) Disadvantages
1. It is inconvenient for post-emergence management
The non-woven fabric is peeled off too late or it has been spread on the seedlings, and there is no visible The situation of the seedlings under the spinning cloth cannot take countermeasures.
2. There is a slight difference in light transmittance
After the seedlings emerge, if the non-woven fabric is not removed in time, it will affect the light to some extent. The longer the coverage time, the greater the impact. Therefore, it is generally not recommended to spread on the seedlings all the time.
The test showed that the light transmittance of plastic film was 76% in dry seedling bed, and that of non-woven fabric was 63%, and the difference was not significant.
3. Differences in warming performance
The test shows that the minimum temperature of non-woven fabric is 1-2 degrees lower than that of plastic film, and the warming performance is not as good as that of plastic film.

Clouds of non woven fabric supplier failures surround the world of non-woven company in particular, simply because people don’t pay as much attention to the CUSTOMIZING as they should do.
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Wenzhou Xinyu Non-woven Fabric Co., LTD. have been an established and popular company with an excellent track record for the best customer satisfaction.

The melt-blown non-woven fabric uses polypropylene as the main raw material, and uses high-speed hot air flow to draw the thin stream of polymer melt extruded from the spinneret hole of the die, thereby forming ultra-fine fibers and collecting them on the condensation net On curtains or rollers, and at the same time self-adhesive to become meltblown nonwovens.

Medical three-antibody spunbond meltblown composite non-woven SMS, SMMS, SMMMS still rely on imports. After SARS, domestic SMS non-woven fabrics developed rapidly. In 2006, a production capacity of more than 60,000 tons was formed. However, due to technical and equipment reasons, the production line did not start normally, the output was only more than 20,000 tons, and the operating rate was only 30%. By 2010, China's online composite SMS non-woven production capacity reached 260,000 tons, with an output of 91,000 tons. As thin and medium thickness SMS non-woven fabrics are mainly used in medical and sanitary products, and their original production capacity matches the production capacity of protective clothing and masks, the current surge in demand for downstream protective products has also led to a shortage of SMS non-woven fabrics.
Melt-blown non-woven fabrics are used for the filter layer of masks.
Spunlace non-woven fabric is a high-pressure fine water jet sprayed onto one or more layers of fiber webs, so that the fibers are entangled with each other, so that the fiber webs are reinforced and have a certain strength, and the resulting fabric is It is a spunlace non-woven fabric.
Clean and high whiteness viscose staple fibers are mainly used to produce spunlace non-woven fabrics, and spunlace non-woven fabrics can be used to produce masks, gauze, surgical quilts, medical towel pads, wet wipes, facial masks, makeup Cotton, garment interlining and other products.
Spunlace non-woven fabrics are used for the outer and inner layers of masks.

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Non-woven fabric, also known as non-woven fabric, is a new type of environmentally friendly material, widely used in all aspects of life. Then everyone must be curious about the processing procedures of non-woven fabrics. Below, XinYu Non-woven will lead you to understand.


Non-woven fabrics are made of polyester and polypropylene materials, which are carded, combed, pre-needle punched, and main needle punched. A mesh cloth interlayer is added in the center, and then double-layered, air-laid and needle-punched to form a cloth. The filter cloth after pressing has a three-dimensional structure. The appearance is smooth, the micropores are evenly distributed, the density of the product is good from the outside, the double-sided surface is smooth and air-permeable, and the filter application on the plate and frame compressor has proved that high pressure can be used, and the filtration accuracy is up to 4 microns. Users need to supply polypropylene and polyester two kinds of materials. Practice has proved that non-woven filter cloth functions very well in plate and frame filtration: for example, coal slime treatment in coal preparation plants, and wastewater treatment in iron and steel plants. Wastewater treatment in breweries, printing and dyeing plants. If other standard filter cloths are used, the filter cake will not be pressed dry and will be difficult to drop. After using non-woven filter cloth, the filter cake will be dry when the pressure of the filter machine reaches 10kg-12kg, and when the filter machine is opened, the filter cake will be dry. Pies will automatically drop. When selecting non-woven filter cloths, users should first consider non-woven filter cloths of different thickness and quality according to air permeability, filtration accuracy, elongation, etc. For product parameters, please click polyester needled felt and polypropylene needled felt, standard types can be formulated.

Needle-punched non-woven products are formed by fine finishing, repeated fine needle punching or proper hot rolling. On the basis of the introduction of two high-precision acupuncture production lines from China and abroad, high-quality fibers are selected. Through the coordination of different production processes and the matching of different materials, hundreds of different products are now circulating on the market, mainly including: geotextiles, geomembranes, velvet cloth, speaker blankets, electric blanket cotton, embroidery cotton, clothing Cotton, Christmas handicrafts, artificial leather base cloth, special cloth for filtering materials.

The above is the non-woven fabric processing procedure that XinYu Non-woven told you, please keep in mind. At the same time, I hope that everyone can have a better understanding of this aspect.

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