A tent is a shed propped on the ground to provide shelter from wind, rain, and sunlight and for temporary living. It is mostly made of canvas and can be removed and transferred at any time together with supporting materials. The tent is carried in parts and assembled only after arriving at the site, so it requires various parts and tools. Only by understanding the names and usage of each component and familiarizing yourself with the structure of the tent can you set up the tent quickly and easily.   Structure: The inner and outer tents, tent poles, windproof ropes, ground nails, etc. Main body: Pillar: Also called a pillar, it stands vertically on the ground. There are various types of straight one or two or three connected. The bends of some tubular pillars need to be connected with wires. The general material is fiberglass, usually 7 sections. Frame: Used in bullet-type tents or cabin-type tents, and is composed of short rod-shaped materials to form pillars or beams. Ridge: The top part of the tent. Roof: The part that forms the slope of the tent. Wall: The portion of the wall on the side of the tent. Some tents have none at all. Canopy: A part of the roof that is opened to the front and supported by other pillars. Door: It is the entrance and exit of the tent. A window can be installed on the other side. Ground mat: a mat spread on the ground in a tent. If there is heavy humidity, another layer of bamboo mats needs to be laid. Fly mat: A mat placed on the roof of the tent to protect it from strong sunlight. i.e. the second roof Main rope: also called column rope. It is separated from both ends of the pillar to prevent the pillar from tilting and is fixed with nails. Corner rope: extends from the four corners of the tent curtain and is fixed with nails. Waist rope: extends from the bottom edge of the roof of the tent curtain and is fixed with nails. Nails: Also called ground nails, they are used to insert into the ground to fix ropes and the bottom edge of tent curtains. There is wood. Made of metal and synthetic resin. Wood or Iron Hammer: Used when driving nails into the ground. A snap buckle made of wood or metal and attached to the main rope or corner rope. The cable passes through two small holes in between and can be controlled by moving it. Bag: A cloth bag that stores the curtain, pillars, nails, and wooden hammers.   Type: Tents for outdoor sports are divided into several categories: advertising tents (promotional tents), military tents (civilian tents, construction site tents), large herringbone tents, tourist tents (3-season tents (for ordinary outdoor activities) and 4-season tents (Winter/mountain use)} Disaster relief tents, inflatable tents, decontamination tents, children's play tents. Below we introduce the differences between these types of tents in detail. According to the opening method, it can be divided into quick-open tents and hand-pitch tents.   Here we mainly introduce the gable-shaped tent. The herringbone tent is also called a marquee, tent house, etc. It is mainly used for various large-scale outdoor activities. The main structure of the herringbone tent consists of two parts, one is the aluminum alloy main frame, and the other is the tarpaulin. In fact, other comprehensive supporting facilities are often equipped to beautify and improve the activities of various themes. 1. The main structure of the herringbone tent is made of high-strength aluminum alloy profiles. The construction principle is an aluminum box-shaped beam frame. The support connections between columns are made of steel components. The roof is reinforced with steel cable stays, both on the roof and on the walls. Base cloth enclosure. The material used in the tent project is aluminum alloy, which has a solid foundation, and the materials and structures used have high integrity and safety. The building structure meets strict European standards. The overall structure has passed wind tests and damage tests by professional institutions. 2. The tarpaulin uses professional coated fabric PVC. It has durable bonding performance: the knife coating technology uses the physical and chemical bonding of liquid PVC and fiber to directly apply the slurry on the fabric; strong welding performance: the welded fabric can withstand great tension, even if Even in harsh environments such as hurricanes and frequent operations, it will not affect the sealing degree of the welding; durable service life: a certain thickness not only gives the knife-coated fabric good UV resistance, but also extends the service life of the product; good Excellent color fastness: Since the pigment is directly immersed into the PVC coating, the knife-coated fabric can keep the color as bright as new. Anti-corrosion, anti-mildew, anti-ultraviolet and flame retardant (M2 and B1) properties all meet international standards. If used and stored properly, rot and mildew will not occur within three to five years. 3. Supporting systems. There are generally six series of supporting facilities for the herringbone tent, including walls, floors, furniture, lamps, fabrics and other comprehensive supporting facilities. All the integrated designs are beyond imagination. The main purpose is to provide comprehensive, specific and optimal space solutions for activities of different natures and styles. 1. The frame is made of high-quality steel and aluminum profiles, which is strong and safe. 2. The awning fabric is made of high-grade synthetic fiber and double-layer PVC material, which has the advantages of high strength, wind resistance, rain resistance, sun protection and flame retardancy. 3. Easy to assemble and disassemble, it is the best product for outdoor exhibitions. 4. The tarpaulin is foldable and the frame is small after disassembly, making it easy to transport and store. 5. The unit modular structure can be freely added or divided according to the size of the site. The spans of herringbone tents range from 6 meters, 8 meters, 9 meters, 10 meters, 15 meters, 18 meters to 50 meters. Easy to set up and disassemble. There is no need for load-bearing pillars inside the herringbone tent, and the venue is 100% used. There are no special requirements for the construction site. Generally, flat ground such as sand, grass, asphalt, cement and tile floors are acceptable.   Hope this blog can give you an understanding of tents.

        Edging sewing machine is a professional sewing equipment for fabric edging process, widely used in towels, bath towels, bed products and other industries. Its unique design and function make it a sharp tool to improve fabric quality. In this blog, we will introduce you to the features and advantages of edge sewing machines.     First of all, the edge sewing machine uses a special Z-shape sewing structure, which can achieve fast and accurate edge sewing. It is able to handle a variety of fabrics, whether it is a thick towel or a light fabric, it can be easily handled.   Secondly, the edge sewing machine has the characteristics of high speed sewing and high efficiency. It is equipped with a powerful sewing machine head and a dedicated edging sewing assembly, which is able to complete a large number of edging tasks in a short time. Whether it is mass production or diversified orders, this machine can meet the production needs.   In addition, the edge sewing machine also has adjustable parameters and diversified functions. The operator can adjust the sewing speed, thread tension and sewing width parameters according to the thickness and needs of different fabrics to obtain the ideal sewing effect. At the same time, it is also equipped with auxiliary functions such as folding device, thread cutting device and automatic parking function, making the sewing process more convenient.   When using the edge sewing machine, the operator should be familiar with its use method and the skill of adjusting parameters. They can choose the right sewing thread and stitch according to the actual needs to ensure the firmness and beauty of the edge.   In short, the edge sewing machine is a professional sewing equipment that can enhance the quality and appearance of the fabric through its unique design and functions. Its high-speed sewing, adjustable parameters and diverse functions make it an indispensable tool for the towel and fabric cloth industry. For those who pursue high quality, high efficiency manufacturers, towel edge sewing machine is undoubtedly an ideal choice.

Today we introduce this multifunctional outdoor tactical vest. First, let’s take a look at the pictures of this Versatile Outdoor Tactical Vest   Tactical vests refer to external equipment worn by some soldiers to increase the number of ammunition they can carry. They are made of high-quality military-standard nylon webbing and are wear-resistant and lightweight. It can be worn outside body armor and will not interfere with body armor, radios, parachute bags, etc. It is a piece of equipment widely used by special forces. It should be noted that tactical vests are not bulletproof.   Tactical vests are mainly composed of fabric, equipment bags, buckles, and stitching. The prerequisites for choosing fabrics are: non-combustible, durable, waterproof, etc. Most of the early vests were made of leather, canvas and other materials, which would increase the weight because the vests absorb water. Later, nylon material was used as the fabric of the vest, which not only reduced the weight but also increased its durability.   The detailed parameters are as follows: Name: A56 Amphibious Tactical Vest Fabric: 600/1000 waterproof Oxford cloth Size: W38*D20*H45cm Color: 9 colors in total including black, mud color, military green, etc. Product composition: adjustable shoulder strap, steel wire connection at the front and back, map bag, Velcro, triple single clip, cardigan with convenient buckle, MOLLE system, back handle, service bag, adjustable webbing, adjustable Velcro at the waist, MOLLE on the back system Applicable scenarios: outdoor sports Applicable groups: military, employees, security guards, etc. Applicable gender: Neutral/Both men and women   Features: 1. Large capacity space, can accommodate 500ml kettle. 2. Quick release design, using eight-core steel cables wrapped in flexible rubber, making emergency release easier and faster. 3. Convenient full cardigan and convenient velcro cardigan make dressing faster and more convenient. 4. Waterproof fabric, highlighting the pursuit of quality and exquisite design and production technology. 5. Back straps and mounting system. The back is equipped with fixed straps and MOLLE mounting system, which can mount more small travel items. 6. Badge Velcro, the front pouch is equipped with badge Velcro, which can affix various badges. 7. Hand-held design, the hand-held design on the back makes it easier to take clothes. 8. Customized buckles highlight the brand and make it more secure to use.   Structure: Adopting a modular structure, it can be combined with existing weapons, ammunition, communications and other equipment, and modules can be easily and freely replaced.   Wearing a vest does not affect the use of helmets, bulletproof vests, personal weapons and includes both hands and other standard individual movements, shooting, etc. Can be worn with existing surrounding clothing without upsizing, including gloves. The vest can be worn with or without all types of military gloves. The tactical vest must be able to be easily assembled, put on, and adjusted to fit within 30 seconds without the assistance of others. The assembled vest requires minimal realignment and adjustment when worn repeatedly. The time spent out of the water should not exceed 15 seconds.   The tactical vest has a continuous service life of 5 years and a functional life of 10 years during intermittent storage. Tactical vests need to pass the friction resistance test. The size of the vest can be quickly adjusted without affecting the wearing and movement of bulletproof vests, tactical saddles and umbrellas. It is suitable for combat operations of automobiles, motorcycles, aircraft, ships and combat vehicles.  

Sewing machine hemming techniques and hemming sewing machines   Tips for hemming clothes Method/Step 1 1. Cut a hemming strip, such as a 4 cm wide hemming strip, with a length of 80% of the collar circumference (generally, the length of the more elastic one is shorter. For my fabric, which has a good elasticity, I just use 80%. I heard a fabricator before. A friend said that she sometimes takes a little more than 70% of the collar circumference, and the elasticity is usually 80~85%. If the elasticity is not good, it is 90%. I usually take the two figures of 80% and 85%.) 2. Sew the hemming strip face to face into a circle 3. Facing the front of the hemming strip to the back of the garment piece, pull it evenly with the body and neckline and secure it with a beading needle. Method/Step 2 1. Make a circle around the collar, about 5mm wide 2. Turn the hemming strip over, then fold it in half to cover the neckline. In order to make it easier to see, I fixed it with a beading needle. 3. Carry one circle along the outermost edge of about 1~2mm. If you want it to be the same as the one you bought, you can carve it twice (note: if you have a good grasp of the sewing machine, you can do this. If the straight line is not very straight, just carve it in one direction) 4.Complete The above are the hemming techniques for ordinary sewing machines. Now there are special hemming sewing machines, which greatly improve the efficiency of use. See the following introduction for details: The hemming sewing machine is a kind of sewing equipment specially used for hemming technology. It is widely used in textile, shoemaking, luggage and other industries. Its main function is to sew a strip of material on the edge of fabric or leather to increase the beauty and durability of the product. The following is a brief introduction and usage of the hemming sewing machine:   A hemming sewing machine is a specially designed sewing equipment with a larger work surface and dedicated hemming sewing components. It is usually equipped with functional components such as a powerful sewing head, thread cutting device, edge conveying device and thread trimming device. The cooperative work of these components allows the serger sewing machine to complete the serge sewing task efficiently and accurately.   The steps for using a hemming sewing machine are as follows:   1. Preparation: Make sure that the hemming sewing machine is running normally, the threads are complete, and the sewing machine head is loaded with the corresponding coils. Adjust the machine height to suit the thickness of the fabric or leather. 2. Fabric or leather pre-treatment: straighten the edges of the fabric or leather to be sewn and remove excess threads or impurities to ensure a neat sewing effect. 3. Adjust the hemming sewing machine: According to the sewing requirements, adjust parameters such as the presser foot pressure, thread tension, and stitch length on the hemming sewing machine to ensure the firmness and beauty of sewing. 4. Start sewing: Place the edge of the fabric or leather to be sewn on the workbench of the hemming sewing machine, start the machine head through the pedal or computer control, and let the needle sew the hemming according to the preset line. At the same time, the hemming tape is sent under the machine needle through the edge conveyor device to realize hemming sewing. 5. Complete sewing: When sewing is completed, use the thread trimmer to cut off the thread ends and organize the sewing lines to ensure that the stitches of the hemming are neat and firm.   The use of a hemming sewing machine requires experience and skills. The operator should be familiar with its usage, parameter adjustment skills, and carry out frequent practice and debugging to obtain satisfactory sewing results.   In short, the hemming sewing machine is a kind of special sewing equipment. Through its unique structure and function, it can complete the hemming sewing task efficiently and accurately. Correct operation and adjustment of the hemming sewing machine can improve the quality and aesthetics of the product and meet the production needs of different industries.

A sewing machine is a machine that uses one or more sewing threads to form one or more stitches on the sewing material to interweave or sew one or more layers of sewing material. The sewing machine can sew fabrics such as cotton, fiber crops, silk, wool, and artificial fibers, and products such as leather, plastics, and paper. And it derives art forms such as hand-push embroidery and computer embroidery.   1. Leather Sewing Machine Definition: The leather product sewing machine is an industrial sewing machine for sewing all kinds of leather products, canvas, artificial leather, rubber cloth, hessian fabric and other thick material products, also known as heavy material sewing machine.   Let me take a look at the machine: Product name: Integrated upper and lower integrated feeding leather lockstitch sewing machine Speed: 2200r.p.m Number of needles: single needle Stitch: lock stitch Model: 8867 Number of lines: 1 Weight: 60KG Scope of application: thin material, medium and thick material   The head of the leather sewing machine is composed of a pricking mechanism, a thread take-up mechanism, a thread hook mechanism, a feeding mechanism and special devices. Because the structure and shape of raw material products such as leather and canvas are more complicated than clothing, the body shapes of sewing machines for leather products are various, mainly including cantilever type, column type and box type. In order to adapt to the sewing of large products such as tents, sails, mattresses, bags, etc., its body shape is also larger than common industrial sewing machines.   2. Luggage Sewing Machine Bag sewing machines are generally industrial-grade equipment that can sew many different kinds of heavy-weight materials such as leather, canvas, denim, and more. These materials are generally thick and heavy, and require a lot of force when sewing, and a powerful motor is needed to ensure the sewing effect. In addition to sewing heavy materials, the bag sewing machine also excels in cutting and embossing. Layers of leather can be stitched together and create beautiful patterns around the edges. In addition, most models of luggage sewing machines are equipped with large sewing clips and sewing tables for easy operation and post-operation finishing.   The composition of the machine head: mainly includes the body, needle bar, needle plate and presser foot. The fuselage is usually made of cast iron or stamped steel plate, which has a strong structure and strong durability, and can withstand the high-intensity work of sewing heavy materials. The needle bar is the moving part of the needle, and its position can usually be adjusted manually or electrically. The needle plate is a flat metal plate installed at the bottom of the machine head, with many small holes on it, and when the needle passes through it, it can form a sewing thread. The presser foot is a pressure bar fixed above the needle plate and used to clamp the fabric to ensure that the material does not move when sewing.   Product Name: Luggage 8B Direct Drive High Head Luggage Sewing Machine Speed: 2200r.p.m Number of needles: single needle Stitch length: 8mm Sewing space: 250*110mm Presser foot: manual: 8mm, knee: 714mm Motor: direct drive Needle bar travel: 37mm The functions of this 8B comprehensive feeding single direct drive high car are as follows: Quiet and energy-saving, with up and down needle positioning function, the speed can be adjusted. Thread take-up with slide bar, thread hook with vertical rotary hook to form double-thread lock stitch, upper and lower shafts are driven by synchronous toothed belt. There is no need to hang the motor down, and the installation is easier.   Bag sewing machine also has the following advantages: 1) Low noise and low vibration design. Improve the working environment and reduce operator fatigue. 2) High degree of automation and labor-saving operation. Reduce human resources. 3) The computerized sewing machine has high stability. Improve the quality of luggage products. 4) The single-machine performance of the computerized sewing machine has been expanded. The working principle of the sewing machine is very simple, and its basic principle is similar to that of ordinary sewing machines, but the structure is stronger, the power is greater, and the configuration is more complete. Suitable for sewing all kinds of bags, such as handbags, backpacks, etc.   3. Clothes Sewing Machine Compared with bag sewing machines, clothes sewing machines are smaller and more suitable for home use. This sewing machine is mainly used for sewing general light materials such as cotton, linen, silk, etc. The motor is relatively small in power and provides decent power and speed.   Let's take a look at this garment sewing machine and you will have a better understanding. Product Name: Garment Sewing Machine Speed: 3500s.p.m Number of needles: single needle Stitch length: 0-6mm Sewing space: 260*125mm Presser foot height: 7-13mm Needle model: DP*5 Needle bar travel: 37mm Motor: 750W The clothes sewing machine has various functions such as sewing, stitching, repairing, hemming, and presser feet. And the stitch length can be adjusted, which can achieve better sewing effect on different materials. Compared with bag sewing machines, clothes sewing machines are more delicate and portable, and are more suitable for home and personal use. Although the luggage sewing machine and the clothes sewing machine are similar in appearance, they are very different in terms of function and scope of use. When choosing a sewing machine, you need to choose the right style according to your needs and requirements.   I hope this blog content can give you a general understanding of sewing machines, and welcome to contact us at any time.  

Today we are going to learn two different fabric, which include TR fabric and wool polyester fabric.   Definition TR fabric is a kind of blended fabric, which is made of two materials, viscose (artificial cotton) and polyester, according to a certain proportion (polyester accounts for more than 60%), and this blended fabric can combine the characteristics of the two fabrics together. "T" means "Polyester" and "R" means "Rayon". TR fabric suitable for dress, suit, shirt, jacket, etc. Wool-polyester blended fabric refers to the wool and polyester two different fibers mixed in a certain proportion of textile fabric, and the gram weight is relatively light, soft and crisp, light and breathable. This fabric is suitable for clothing, such as shirts.   Gram Weight TR fabric: The weight of TR fabrics is usually between 180g and 350g. Wool polyester blend fabric: The gram weight of the wool polyester blend fabric is relatively light, between 150g and 250g.   Advantages and disadvantages TR fabric Advantage: 1. High strength, short fiber strength is 2.6-5.7Cn/dtex, high-strength fiber is 5.6-8Cn/dtex. Due to its low hygroscopicity, its wet strength is basically the same as its dry strength, and its impact strength is 4 times higher than that of cotton fiber and 20 times higher than that of viscose fiber. 2. Good elasticity, the elasticity is close to that of wool, when it is stretched by 5%-6%, it can be recovered almost completely, and its wrinkle resistance exceeds other fibers, that is, the fabric does not wrinkle and has good dimensional stability 3. Good water absorption. 4. Good wear resistance, second only to cotton fiber with good wear resistance, better than other natural fibers and synthetic fibers. 5. Good light resistance, second only to acrylic fiber. 6. Corrosion resistance, resistant to bleaching agents, oxidants, ketones, petroleum products and inorganic acids. 7. Easy to dry after washing, no deformation, good wearability. Shortcoming: 1. Poor color fastness. Polyester fabrics have poor hygroscopicity and feel stuffy when worn. At the same time, they are easy to be charged with static electricity and stained with dust, which affects the appearance and comfort. 2. Poor dyeability, hygroscopicity and melting resistance, and easy to pilling. In general, TR fabric has good water absorption, good elasticity, is not easy to wrinkle, and is easy to dry after washing, which is suitable for suits. Wool polyester blend fabric: Advantage: 1. The surface is shiny under the sun, the fabric is crisp, and its elasticity is better than that of pure wool. When you hold the fabric tightly and release it, there are almost no creases. 2. Soft to the touch: After wool and polyester are blended, the fabric is skin-friendly and soft, comfortable to wear and feels good on the skin. 3. Good heat retention: Wool fiber itself is a fiber with good heat retention. After adding polyester, it can keep warm without being too heavy. 4. Strong abrasion resistance: Polyester is a relatively strong fiber, which can enhance the durability of the fabric and is not easy to wear. 5. Easy to clean: Polyester is an easy-to-clean fiber. After wool and polyester are blended, the fabric will be easier to clean. 6. Anti-wrinkle: Polyester fiber has anti-wrinkle properties, which can reduce the difficulty of ironing and finishing fabrics. Shortcoming: 1. Poor hygroscopicity: Compared with pure wool fabrics, wool polyester blended fabrics have poor hygroscopicity and it is difficult to regulate body temperature well. 2. Poor color fastness: wool polyester blended fabrics are prone to fading under strong friction, sweat, etc. 3. Easy to generate static electricity: After adding polyester, the fabric is prone to generate static electricity, which brings discomfort to the wearer. 4. Not breathable: Blended fabrics containing synthetic fibers are usually not breathable, which can easily cause sweat to stay on the body. 5. It has a hard feeling, lacks the soft soft feeling of pure wool fabrics, and becomes more prominent with the increase of polyester content, and the hand feel is not as good as that of pure wool and wool-eye blended fabrics. Generally speaking, wool polyester blended fabrics have the advantages of good warmth retention and soft hand feeling, but they also have disadvantages such as poor hygroscopicity, easy generation of static electricity and airtightness. When buying, you need to choose whether to buy clothes of this fabric according to your own needs and preferences.   I hope this blog will give you a better understanding of the characteristics and differences between these two fabrics.

Cotton to The Clothing-making Process Steps: 1. Cotton to the production process of clothes, a total of these steps, please see the following introduction 2. Spinning process, to go through from cotton into raw cotton, cotton, through cotton, cotton, comb, comb, strip, yarn, winding, twist, rolling, package and other 11 processes, to complete the spinning process 3. The weaving process is mainly through the weaving process consisting of 8 steps: preparing yarn, finishing, sizing, penetration, machine, weaving, embryo inspection and finished embryo 4. The dyeing process is composed of 11 steps, such as printing, landing cylinder, dyeing, post-treatment, color fixing, cylinder out, dehydration, dry cloth, cloth inspection, color matching, finishing and setting 5. The garment process is composed of eight steps: garment design, sample design, production preparation, cutting process, sewing process, ironing process, garment quality control and post-processing.   Today we will focus on the looms:  The principle that the loom works:  The common basic feature of the shuttle-free loom is to separate the coil of latitude yarn from the shuttle, or to carry only a small amount of latitude yarn with a small and light latitude introducer, which provides favorable conditions for high-speed latitude diversion. In the supply of weft yarn, the barrel roll is used directly, and it enters the latitude introduction mechanism through the latitude storage device, so that the loom can get rid of the frequent latitude filling movements.   It is of great significance to increase fabric variety, adjust fabric structure, reduce fabric defects, improve fabric quality, reduce noise and improve working conditions. The speed of the shuttle-free loom is high, and the efficiency is usually 4-8 times higher than that of the shuttle-free loom. Therefore, the widespread application of the shuttle-free loom in a large area can greatly improve the labor productivity.  Due to the perfect structure of the shuttle loom, choose material range, processing precision is higher and higher, plus the world science and technology development, electronic technology, microelectronics control technology gradually replace mechanical technology, no shuttle loom manufacturing is metallurgy, machinery, electronics, chemical and hydrodynamic multidisciplinary, the combination of electronic technology, computer technology, precision machinery technology and textile technology in the integration of high-tech products. The jet loom detects the total tension of the yarn through the tension sensor, and the CPU controls the change of the opening, the passage, the axis, so as to ensure the transmission accuracy of the yarn and maintain the constant tension of the yarn. Because the air jet loom adopts microcomputer technology and other electronic technology to control the movement of the whole machine, especially the automatic monitoring of product quality, the production efficiency of the air jet loom is greatly improved. But at the same time, the requirements of air jet loom for electronic control system, not only to high performance, good stability, convenient maintenance, low failure rate, but also to adapt to high temperature and high humidity, multiple wool and dust environment, power supply fluctuation, group machine interference and other situations also have strong anti-interference requirements.  The development of weaving machinery products presents the following characteristics:   1. Computer control technology and electronic jacquard technology has been widely used in all kinds of knitting machinery products, in the round machine, horizontal machine, socks machine, artificial fur machine and warp machine have adopted, fill the gap in China in this respect, realize the electronic jacquard, improve the technical level of the machine, make some models reached the international advanced level in the 1990s. China's round latitude machine, hosiery machine, horizontal machine computer control system has been adopted for the host batch matching.   2. Product varieties and specifications series supplements have been relatively complete and developed to both ends, such as the maximum cylinder diameter can reach 38,40 inches, machine number can reach E36, warp knitting machine can reach 180 inches, machine number can reach E32, the maximum computer horizontal machine can reach 60 inches, machine number can reach E18.   3. Enhance the versatility and versatility of the machine, such as the four needles, coils and single latitude machine can be converted to each other; within a certain range, the syringe of different specifications of the same machine can be exchanged to realize multiple specifications; one machine and electronic jacquard machine can be converted.      

Night vision technology has revolutionized the way we see in the dark. There are three main types of night vision: image intensifier, thermal imaging, and digital night vision. Each type has its own unique features and benefits. A. Three main types of night vision B. Specifications of image intensifier, thermal imaging, digital night vision C. Comparison of three types   A. Three main types of night vision Image Intensifier(IIT): This type of night vision works by amplifying the available light in the environment. It uses a photocathode to convert photons into electrons, which are then accelerated and focused onto a phosphor screen. The screen emits a greenish image that is visible to the human eye. Image intensifiers are commonly used in night vision goggles and scopes. Thermal Imaging: Thermal imaging night vision operates by detecting the heat emitted by objects and converting it into a visible image. It uses a special sensor called a microbolometer to detect the infrared radiation emitted by objects. The sensor creates a thermogram, which is then processed to generate a visual representation of the temperature differences in the scene. Thermal imaging is effective in complete darkness and can detect objects based on their heat signatures. Digital Night Vision: Digital night vision technology uses an image sensor to capture the available light and then processes it digitally to enhance the image. It can work in low-light conditions and even in complete darkness with the help of infrared illuminators. Digital night vision devices often have the ability to record images and videos, and some models offer additional features such as zoom and image enhancement. B. Specifications of image intensifier, thermal imaging, digital night vision 1. Image Intensifier(IIT):   Military procurement tubes are judged by an "Omnibus" (OMNI) contract for their minimum specifications. The current OMNI contract calls for the following specs: FOM: 1600+ SNR: 25+ LP/MM: 64+ Photocathode Sensitivity: 2000+ Luminance Gain: 25,000-110,000 HALO: <1.0 EBI: <2.5   FOM (Figure Of Merit): Figure of Merit is simply the tubes Resolution (or LP/MM) multiplied by it's SNR (Signal to Noise Ratio). LP/MM * SNR=FOM SNR (Signal To Noise Ratio): Signal to Noise Ratio is the relation between how much information the tube is giving you is "true" vs "false". Think of an image intensifier tube like a camera sensor. A tube with a SNR of 30 will give you 30 pixels that accurately represent the image, with one inaccurate one. A vague guideline of SNR specs would be something like: 25+ SNR: Average 30+ SNR: Good 35+ SNR: Great Resolution or LP/MM (line pairs per millimeter): To keep using the camera analogy, think of this like megapixels. In our experience, everything above 64lp/mm looks the same to the eye in a headborne unit, especially 72+. 81+ lp/mm tubes are really desired in magnified rifle clip-on scopes where the extra resolution will be noticeable when using magnification. EBI (Equivalent Background Illumination): This can be simplified as how good the tube is at forming an image in low light conditions. The lower score the better. EBI is the amount of light a tube is putting out as default, and so in order for an image to be shown to the user, the incoming light must be greater than what the tube "sees" by default. Realistically, anything below 2.0 is good, and anything below 1.0 is great. HALO: It's going to be the glow you see when you look at a light source, or an IR laser. In general, under 1.0 is ideal, and considered good. However, for clip-on units that will be used on a rifle, you would typically want a tube with a Halo above 1.0, as the lower numbers are also more sensitive to recoil. Luminance Gain (or Brightness Gain): This is the ratio of brightness of the output of the phosphor screen (what you look at), to the input to the photocathode (what receives the light). Out put vs input. In easier terms, it's how many times the light was multiplies before it got to your eyes. The higher the number, the better. A general guide would be something like: <50,000 Gain: Bummer 50-60,000 Gain: Usable/Acceptable 60,000+ Gain: Good Photocathode Sensitivity: This is how well the tube converts photons (incoming light) into electrons (what the tube amplifies). We generally see tubes in the 2000-2700 range. Anything under 2,000 would be a lower performing tube, and 2,700 would be great. We most commonly see tubes around the 2,200 mark.   Confused by lots of data and numbers? Then the following points chart can help.   Generation: We concentrate on the performance of each generation. Gen1 Limitations: -maximum useful range is about 75 yards depending on the night. A good Gen 3 device is capable of several hundred yards even in lower light conditions. -lower resolution images, more static/noise in the images, not as bright. -inability to operate "passively" - Gen 1 relies on built-in IR illuminators that are always on, making the user very visible to anyone using another night vision device. -smaller field of view due to distorted image on outer one third of the field of view. -shorter battery life. -more susceptible to "blooming" - which is image distortion caused by excessive light. -Gen 1 monoculars don't have the versatility that higher generations do. Examples: adapting to rifle scopes, spotting scopes and weapon mounting capability. -shorter life expectancy. Gen 1: about 1500 hours, Gen 2: about 5000 hours, Gen 3 over 10,000 hours. Gen2:  The major improvements over Gen 1 are as follows: -much longer useful range, in the 200 yard area depending on model. -better resolution, cleaner images, brighter. -the ability to operate "passively" without the necessity of IR illumination. -full field of view- no distorted image on outer one third of viewing area. -longer battery life -less susceptible to "blooming" or image distortion caused by light when compared to Gen 1. -Gen 2 monoculars have greater versatility due to increased durability and adaptability. -3 times longer life expectancy than Gen 1 and better reliability. Gen3: -longest ranges, in the 300 yard plus range depending on model and conditions. -best resolution, cleanest and brightest images. -best low-light performance. -even greater ability for completely "passive" operation - operating without the use of IR illumination/covert operation. -autogated Gen 3 image tubes allow for operation in ALL light conditions. Significant reduction to "blooming". -best versatility due to better performance when using with magnification lenses, scopes, camera adapters, and other night vision accessories. -longest life expectancy of 10,000+ hours and best reliability/durability. Gen4: This is a tricky one as technically there is not really a Gen 4 classification, according to the US Army. When it was initially introduced the US Army recognized the Gen 4 technology classification. However, after testing reliability and life span of the Gen 4 the Army determined that this technology did not meet their strict requirements and thus recanted the Gen 4 definition. Now some companies use the 'Gen 4' Term as a marketing ploy to say its the best image.  So what does this mean for someone looking for the best equipment they can get?  There is new technology that is similar to the Gen 4, it is called 'Unfilmed' or 'Filmless Gen 3'.  This is what the military is using alot of now, and is still classified as a Gen 3, but it has the same Filmless feature and better performance of the Gen 4, with the reliability of a Gen 3.   2. Thermal Imaging: Pixel pitch Pixel pitch is the distance between the centres of two pixels of a microbolometer. In thermal imaging sensors, it is measured in microns (µm).   Fill Factor Fill factor is the ratio of sensitive surface of all pixels to the total area of pixels. Sensors with a higher fill factor can absorb a larger amount of energy.   Magnification The magnification value shows how many times the observed image (with the help of the optic device) is larger compared to the object observed with a naked eye. Magnification Dependencies:The higher the focal length of the objective lens, display size, the higher magnification.The higher the focal length of the eyepiece, sensor size, the smaller magnification. Field of View(FOV) The field of view defines the size of space that can be viewed through the optical device at a defined distance. Field of view is usually given in degrees (angular field of view is shown below in the image as 2Ѡ) or in metres for a specific distance (M) (usually 100M) to the observed object (linear field of view is shown as A in the image). The field of view of a digital night vision device is defined by the focal length of the objective lens (f objective lens) and the physical size of the sensor (B). For calculation purposes, they usually use the width (horizontal size) as the physical size of the sensor and in the result, they get the horizontal field of view: If vertical sensor size or diagonal sensor size are known it is possible to calculate the vertical or diagonal field of view similarly. The wider the field of view, the more comfortable observation as there is no need to move the device constantly to view the necessary part or space. It is important to understand that field of view is inversely proportional to magnification – meaning that when magnification increases field of view shrinks. This is one of the reasons why infrared systems (thermal imagers in particular) with high magnification are not manufactured. At the same time, it is important to understand that an increase in the field of view leads to a decrease in detection and recognition range. Field of View Dependency: The larger sensor size or smaller focal length of the objective lens, the wider angular field of view. Frame Rate The frame rate is one of the main characteristics of a thermal imaging device. From the user’s point of view, it is the number of frames displayed on the screen in one second. This is usually measured in Hertz (Hz) where 1Hz is equal to 1 frame per second. The higher the frame rate value, the less visible the effect of lagging of image produced by thermal imager in respect to the real scene. Observation of dynamic scenes with a thermal imager that has 9 fps rate shows a blurry image and object movements may seem laggy and “jerky”. On the contrary, the higher the frame rate, the smoother will be the rendering of dynamic scenes.     3. Digital Night Vision: Magnification, Resolution, Sensitivity, Field of view are the same from the above. Sensitivity In order to characterise the sensitivity of digital video cameras, they often use the parameter of minimal illuminance level on the observed object when the device is still able to produce an image. This definition is the most suitable for digital devices operating in the visible range of the spectrum. For visible ranges a unit of sensitivity measurement is a light unit – “lux”. The sensitivity of a device depends on the following parameters: -Light-gathering power and quality of objective lens -Sensor parameters – physical size, its type and sensitivity -Display parameters – brightness and contrast, resolution -Algorithms for signal processing -Quality of electric circuitry solutions implemented in the device Relations: The higher the light-gathering power of the objective lens (increases when the entrance pupil is increased and the focal distance is decreased), the higher the overall sensitivity of the device. The more lenses that are used in the objective, the smaller the light-gathering power and the sensitivity of the device. The higher the optical transmission coefficients of lenses constituting the objective, the higher the sensitivity. Eye Relief Eye relief is the distance from the external surface of the last lens of the eye piece to the plane in which the observer’s eye is located when the observed image is optimal (the largest possible field of view, minimal distortions). This parameter is very important for weapon sights, where eye relief should be at least 50 mm (optimal 80-100 mm).  Such big values of eye relief are necessary to avoid injury to the observer because of the recoil during the shot. In night vision devices eye relief as a rule equals the length of eye shade which is necessary to mask illumination of the image intensifier tube or screen.   Detection And Recognition Distance Detection distance – the maximal distance from the observation device to some object (usually man) which may be detected with the help of the device. Recognition distance – the maximal distance at which the observer can recognise the type of observed object (human, animal, building, etc.).   C. Comparison of three types      Knowing that you’re already exhausted in studying the parameters various, we list a clear sheet to help you distinguish these three types. Which best? It depends on the circumstance. Usually image intensifier is for military use for its complete function. Thermal is for hunting. And digital is for police evidence collection for its video supportable.   See dark in the night, night vision is also in our catalogue. Hurry to inquire us, even customizable parameter is supported. We Partner service you as the night vision brighten your vision.

Military and law enforcement personnel, private security, emergency medical services, and explosive ordnance disposal, ballistic helmet is applied widely for those who risk their lives and contribute to our safety. Bulletproof helmet is definitely the just choice for the protection of our security. However, the question comes. How to choose the proper one in so many types of helmets? Here raises the guide complete. Types of Bulletproof Helmets and Their Usage Material of Bulletproof Helmets and Performance Comparison the Signification of NIJ Level   A. Types of Bulletproof Helmets and Their Usage There are different types of ballistic helmets designed to provide protection against ballistic threats. Below is a simple introduction of the main 4 types helmets.   PASGT (Personnel Armor System for Ground Troops): This helmet was widely used by the U.S. military and features a Kevlar shell with a suspension system for comfort and impact absorption. FAST (Future Assault Shell Technology): This helmet is designed for special operations forces and features a lightweight carbon fiber shell. It offers enhanced ballistic protection and has modular accessories for customization. MICH (Modular Integrated Communications Helmet): This helmet is designed to accommodate communication devices and accessories. It provides ballistic protection and allows for easy integration of communication systems. High Cut (WENDY) Helmet: This type of helmet has a higher cut around the ears, allowing for better peripheral vision and communication. It is often used by special forces and SWAT teams. It is important to note that the level of ballistic protection may vary among different helmet types. It is crucial to choose a helmet that meets the specific requirements and threats of the intended use. So we made a chart for you to better know the difference between these four types.   B. Material of Bulletproof Helmets and Performance Comparison Ballistic helmets are typically made from layers of Kevlar or Ultra-high-molecular-weight polyethylene (UHMWPE, UHMW) fibers that have been pressed at a constant temperature and pressure for a set amount of time.   Aramid Material Aramid is a class of synthetic fibers that are lightweight, super-strong, and heat resistant. These properties make them perfect for military and defense applications like making ballistic body armor and ballistic helmets. These days, most modern Ballistic helmets are made with Kevlar and Twaron, both of which are Aramid materials. Aramid matrix helmets offer flawless ballistic performance and provide very small back face deformation combined with a high V-50 factor. This type of bulletproof helmet offers very good ballistic performance against pistol calibers and shrapnel.       2.PE Material PE stands for Polyethylene, which is a very common and strong synthetic plastic that is also used to make ballistic helmets. PE helmets are made using Ultra-High-Molecular-Weight polyethylene which can be even stronger than Kevlar and other Aramid materials. When it comes to impact protection, ballistic helmets made from Aramid fibres like Kevlar and Twaron have usually higher ratings in general.   To clearly manifest their performance, we made a chart to compare their advantages and disadvantages, which can help when you make a decision.   C. the Signification of NIJ Level Beginners may confuse when it comes to the specification NIJ. They don’t have an exact conception of NIJ Level. Then the following introduction can help you. A good place to start is the National Institute of Justice (NIJ), which sets standards for body armor, ballistic-resistant materials, and, to a lesser extent, helmets. Today, ballistic helmets are commonly promoted as NIJ III-A, which basically means they protect against specific handgun threats. The protection levels outlined by NIJ's Ballistic Resistant Protective Materials Standard (0108.01) can apply to a range of items. These levels define the ballistic resistance of any piece of equipment, including helmets: Level IIIA protection according to 0108.01 ideally means that a helmet is tested to stop up to the following threats: 1)240 grain .44 Magnum rounds at a nominal velocity of 1,400 f/s. 2)124 grain 9 mm Full Metal Jacket (FMJ) rounds at a nominal velocity of 1,400 f/s.     We Partner’s helmets cover all the four types, PASGT, FAST, MICH, WENDY above. We can even offer the customizable service. Professional personals as professional supplier, that’s the way we pursuit. Contact us directly just the moment.

We are launching a variety of different types of fabrics soon.   The classification of fabrics includes two types: Industrial workwear fabrics and Camouflage workwear fabrics.     Industrial workwear fabrics are used in leasing, medical health, metallurgical fire protection, catering service, police safety, electronics, petrochemical and other industries. The characteristics of industrial fabrics are also very wide, such as industrial washing resistance, elasticity, antistatic, flame retardant, three prevention, acid and alkali resistance, chlorine bleach resistance, antibacterial, antiviral, hygroscopic sweating and other functions.   We can customize the function of fabric to meet the needs of special industries, please contact us if you have any questions or interested in our fabrics.