Prima

1. Geotextile production line commonly used with needle selection needle

Geotextile is a kind of geotechnical material widely used in the construction of roads, reservoirs, tunnels, dams and so on. Its main function is separation, filtration, drainage, stability and reinforcement. Because of its wide application and importance, so its tensile strength, bursting strength, permeability and fabric weight performance requirements are very high. Therefore, the star-shaped needle is most suitable for the production of high-strength geotextiles, especially for the production of man-made staple fibers and spunbonded geotextiles. The star-shaped needles with four-sided hook pricks allow for a high entanglement rate per needling and at the same time reduce damage to the fibers. There are many types of fibers used in the production of staple cloth, depending on the specific application, common polyester, C wheel and nylon, fiber thickness is usually between 4 and 10 denier, some products will also use thicker fibers. The acupuncture depth is generally 10 to 12m, and the acupuncture density is generally 100 to 400 per Cm2. Spunbonded tusset usually needs a high-speed needling machine with a speed of 2000 to 3000 per minute, while the needling density is relatively low. Usually, the main needling machine needles 100 to 300 per C㎡, and the recommended needling depth is 10 to 12mm. At present, the application of filament cloth is more and more extensive. According to the situation reflected after the use of several filament needles introduced by Sino-German Company in recent years, the effect is still better than that of teaching. For manufacturers in need, please choose the above needles for hook-stabbing LB filaments.

2. Commonly used needles for selecting needles in linoleum base fabric production line

Linoleum base cloth is generally composed of three layers: surface layer, base layer and bottom layer. In fact, it is also a kind of civil engineering material, but it is not directly used and needs to be processed outside. This product uses a fiber range of 12-120 denier, commonly used is polypropylene or nylon fiber. Double-sided puncture will greatly enhance the wear resistance of the base fabric surface. The gram weight of the product is between 300-800 grams per square meter, the pre-stab needle density is between 70-150 stabs per square centimeter, and the main stab needle density is about 150-350 stabs per square centimeter. Now more and more manufacturers, in order to improve the strength of the base fabric and the quality of the products, most of them use filament as raw material to make linoleum base fabric. Sino-German companies have specially innovated LB-type hook spines for the characteristics of filament fibers, comparing the production characteristics of filament geotextiles. Manufacturers that do not use filament geotextiles can be worth trying.

3. Common needle selection needles for filter material production lines

Filter materials are widely used in air, gas or liquid for the removal of dust or other particles, compared to other commonly used textile filters such as woven, needle filter better. The thickness of the fiber and the density of the product will affect the performance of the filter cloth. The specific selection of fibers and needling methods need to be determined according to the actual use of the filter material. For industrial use, the bag-shaped needle-punched filter material needs to be equipped with a strong base to pierce the fiber web from top to bottom, because the filter must have high pressure resistance and strong tension. Some non-industrial filters do not require a base. For high temperature filter, it is necessary to use fibers that can still maintain stability at high temperatures as raw materials. Some special glass fibers and aromatic polynicotinamide fibers are more common. For the needle filter, the most important thing is to ensure the strength of the finished filter, and the forming (G, GB type) hook needle can effectively protect the fiber less damage, to ensure the strength of the product. Two other points of particular concern are the density and breathability of the finished product. In order to achieve the desired density and to avoid excessive needling affecting the permeability of the product, star needles can be used as much as possible. 4. Commonly used needles for selecting needles in synthetic grass-based cloth production line

4. The combined grass-based fabric is a kind of artificial leather made of needle-punched non-woven fabric as the base fabric, and then after a series of processes such as resin treatment and shaping. It effectively simulates the structure of natural leather, mostly using fiber as raw material. Artificial leather can be roughly divided into suede and rough leather. Widely used in apparel and non-apparel industry, of which non-apparel industry is developing rapidly, mainly including uppers, leather bags, interior decorative fabrics, car cushions, decorative materials, golf and other sports gloves, luggage, etc. Synthetic leather must have the following characteristics: 1. high density; 2. surface smooth (no needle marks or other defects); 3. high abrasion resistance; 4. high strength and resistance to delamination; 5. tensile strength. A typical production line from pre-piercing to repair generally has eight needle machines, pre-piercing directly affects the quality of the final product, so the selection and operation of pre-piercing needles are very important. Since the fiber entering the pre-stab is thick and fluffy, it should be carefully flattened and then subjected to reasonable needling, so as to avoid the commonly used pre-stab density of 50-80 thorns per square centimeter. The main needle will generally be equipped with multiple needle machines and the needle type of each machine can be different according to actual needs. As the fabric moves back, the efficiency of the needle machines will decrease one by one, and the needle depth will also decrease one by one accordingly. This ensures the smoothness of the fabric and the required density. The needling density of the main needling machine is generally between 1000-3000 needles per square centimeter.

5. Paper blanket production line commonly used needle needle

Papermaking felts are needle-punched non-woven products used on papermaking machines. One of its characteristics is that it is ring-shaped, with a special bottom net added in the middle, and then several layers of pre-pierced and carded webs are pierced and reinforced together. It is mainly used for pressing and dewatering on the paper machine, so the product requires high strength, good high temperature resistance and good water filtration characteristics. In the production must minimize the damage to the bottom net, in response to this requirement, the company successfully developed a special needle point, and has been recognized by most customers, has been to use the fruit is very good. Such a needle tip can reduce or even completely eliminate the problem of needle damage to the base net and the misplacement of the yarn of the base net. In addition, the peach-type needle developed by Sino-German company has all the above advantages. The peach-shaped design of the special cross-section effectively reduces the needle breakage rate and greatly reduces the puncture resistance. Welcome to choose boldly. Sino-German forming needles can also maximize the strength, durability, filtration and service life of papermaking blankets. Correct needle selection minimizes damage to the base web while ensuring effective fiber transfer efficiency. Generally, the needling depth is 10-12mm, and the needling density is generally between 400-800 needles per square centimeter.

6. Ceramic fiber insulation felt production line commonly used needle selection needle

Ceramic fiber insulation felt is a kind of high temperature resistant material widely used in petrochemical industry, ceramics and steel industry. The thickness of the finished product is 75mm or more. The needling depth is between 8-14mm. The density of acupuncture is the same as 15-40 thorns per square centimeter. The open world-type needle developed by Sino-German company is most suitable for the use of this fiber. In actual use, it has been well received by the majority of users at home and abroad. The world's three major brands, Morgan, Isolet, Unifu company long-term use of the company's products. The smooth hook teeth of Sino-German open puncture needles can minimize the damage to loose ceramic fibers and ensure the excellent strength and insulation of the finished product.

7. Common Needle Selection Sentences for Spiral Dry Net Blanket Production Line

The spiral dry net blanket is similar to the papermaking blanket. Its main feature is that a special bottom net with a ring-shaped layer is added in the middle, which is only a burden compared with the blanket. Mainly used in cloth drying, paper money drying, carton drying and transmission. It requires a certain tensile strength, heat-resistant wire permeability and other properties. The thickness is particularly thick, so the requirements for the needle are particularly high. The peach-shaped needle developed by Sino-German company is very suitable for such products, and the effect is very ideal. The peach-shaped structure of the cut surface reduces the resistance of puncture and the damage to the fiber, and greatly reduces the rate of needle breakage. Arrange the integrated hook and thorns on one top. This same distance can reduce the damage to the fiber and the bottom net and improve the needling efficiency. Especially developed special needle tip, the most suitable for the use of products. It can not only smoothly bypass the spiral bottom net, but also fasten and fasten the bottom net, effectively avoid the burr generation of the net blanket, and improve the quality of the net blanket plays a key role.

8. Commonly used needle selection for bentonite impermeable pad production line

Bentonite impervious pad is to place bentonite in two layers of geotextile, which can be one of the layers or both of the layers are non-woven fabrics. It can effectively lock the bentonite layer by needling. Bentonite is an important part of the impervious mat, which can ensure that the impervious mat maintains a plate letter of permeability in the water-rich geology. Bentonite can bond water molecules to form a complex structure, which can increase the water retaining function of the impermeable pad. The anti-seepage mat has been successfully applied to the bedding of buried garbage disposal sites, canals, reservoirs or the construction of anti-pollution barriers on airport runways and highways, as well as other barrier facilities. Because bentonite is corrosive, it is important to take into account the wear of the needle. In addition, the hook teeth should not be too large to damage the coated nonwoven fabric. The special bentonite impermeable pad provided by Sino-German needles has been recognized by many manufacturers.

9. Commonly used needle selection needle for fiber protective pad production line

Some of the raw materials of the fiber protective pad are natural fibers, and some are renewable synthetic fibers. Natural fibers include coir, sisal and jute. When using thicker and heavier gram fibers or sisal, the needle will encounter

to very great resistance. In this case, we strongly recommend you to use a 16 gauge diameter molded felting needle. If renewable fibers are used as raw materials, the types of products will vary depending on the type and thickness of the fibers used. In addition, it is also common for the products to be affected by different degrees of tearing and opening. All these factors will increase the puncture resistance of the fiber web. To this end, we strongly recommend conical needles to you. Generally, the depth of acupuncture is between 12 and 20mm, and the density of acupuncture is about 20-150 needles per square centimeter.

10. Commonly used needles for selecting needles in various production lines of automobile interior cloth

Automobile needle-punched interior cloth can be divided into the following three categories according to its use: 1. decorative cloth, automobile roof cloth, automobile carpet and door panel decorative cloth, etc.; 2. cushion, sound insulation material, carpet cushion, etc. 3. filter, gasket, baffle plate, etc. Car carpet is the largest amount of a car interior cloth, mainly made of polyester and nylon fibers and other materials, most of the weight of 300-500 grams per square meter. Please refer to the linoleum base fabric listed above for the selection of material and needle type of this product. Needle-punched car roof cloth is being initially produced in our country, but it has become very popular in Europe and abroad. Among them, 3-6 denier polyester products are the most common products with a weight of about 200 grams per square meter. They are typically mixed with low melting point polyester fibers. Carpets for automobiles are made of recycled fibers. There are many types of such fibers, which vary depending on the use of the car and whether the part needs to be molded.

15. Commonly used needle selection needle for luggage material production line

Luggage materials, like artificial leather, are only thicker than artificial leather and have lower requirements. They also have to go through complicated follow-up procedures. They are mainly used in suitcases, air boxes, luggage boxes and carrying bags with new surface materials instead of leather.

16. Commonly used needles for selecting bristles and fleece in clothing fabrics

Loose woven clothing fabrics and round machine clothing fabrics, through the needle, pull out the fiber, so that the fabric surface is as soft as velvet, feel thick, but also has a strong sense of drape. The use of the table in the needle variety, can make the fabric surface to reduce the pinhole, delicate and smooth, woolen sense is obvious. When napping can also use ultra-fine fork needle, can play a very good effect.