XIAMEN GREENLIKE BAG CO.,LTD

Because the backpack is used in a special environment, higher requirements are placed on the material and craftsmanship of the backpack. All the places where the backpack is stressed are backstitched three times with stitches to make the stressed places strong and durable. The buckles and other parts of the backpack can be frost-proof, smash-proof, and deformed at 120 degrees Celsius without damage. The outer materials of the backpack are mainly 420D Oxford nylon, 1000D nylon, 600D or 1000Dpolyester (polyester), or 1000D CORDURA and other materials. The 1000D material has high density and is very wear-resistant, making it very suitable for field use. CORDURA is a well-known high-grade wear-resistant nylon roving fabric developed by DuPont in the United States. The material's abrasion resistance is much higher than that of ordinary nylon or polyester, and it is lightweight. More than 90% of the world's famous brand backpacks are made of this prestigious nylon material. These materials can withstand water pressure of 0.5m~2m, keeping the contents of the bag dry. Some materials also have a tear-proof function. Once punctured, the breach will not be torn apart and expanded.

one shoulder It presses the weight of the schoolbag on one side, presses one side of the spine, and pulls the other side, resulting in unequal muscle tension and imbalance, followed by the blood circulation of the shoulder on the compressed side. Certain influence, over time, may lead to abnormal high and low shoulders and curvature of the spine. Only suitable for bags that are not too heavy to carry in a short time. Elbow bag The weight of the bag is borne by the stronger biceps, which feels easier and avoids finger strain. However, the pressure of the bag is concentrated on the elbow joint, compressing the blood vessels, which will affect the blood circulation. If you maintain this position for too long, the fingertips may become numb and cold. Crossbody backpack The shoulder strap is fixed, it is not easy to slip off, and the shoulder joint does not need to move forward, which can avoid hunchback. However, it is still only one side of the shoulder that is stressed. If only one shoulder is used for a long time, it may lead to deformation of the shoulder over time. hand carry Keep the wrist and arm in the same line, this position is the most relaxed. Using the upper arm and forearm muscles, the trapezius is less involved, and the chance of causing high and low shoulders is lower. However, the finger grip is limited, and the weight of the bag is concentrated on the finger joints. If the bag is too heavy, it will cause finger fatigue. shoulders The weight of the backpack will make people unconsciously straighten the chest, adjust the shoulder straps to make the backpack close to the back, and the pressure is evenly transmitted to the spine and back muscles through the two shoulder straps, which is not easy to produce fatigue, and is also a backpack method that can bear the most weight. If the shoulder straps are too long, the backpack sags backwards and is not close to the back, and the shoulders need more strength to ensure the stability of the backpack, which will put pressure on the trapezius muscles. Experts suggest that the backpack should not be too heavy as much as possible, and it is not possible to use only one shoulder backpack for a long time. It is best to rotate the left and right shoulders and the left hand in different postures to avoid local muscle fatigue.

According to the different volume of the backpack, the backpack can generally be divided into three categories: large, medium and small. Large backpacks with a volume of more than 50 liters are suitable for medium and long-distance travel and more professional adventure activities. For example, when you are going to a region like Tibet for long-distance travel or mountaineering expeditions, you should undoubtedly choose a large backpack with a volume of more than 50 liters. Some short- and medium-term trips also require large backpacks when camping in the wild, because only it can hold the tents, sleeping bags and sleeping pads you need for camping. Large backpacks can be divided into mountaineering bags and long-distance travel backpacks according to different uses. Mountaineering bags are generally slender and long in order to pass through narrow terrain. The bag body is divided into upper and lower layers, and the middle is separated by a zipper interlayer, which is very convenient when picking and placing items. The sides and top of the backpack can be tied with tents and cushions, which virtually increases the volume of the backpack. There is also an ice axe cover outside the backpack, which can be used to bundle ice axe and snow poles. The most worth mentioning is the back structure of these backpacks. There is a lightweight aluminum alloy inner frame that supports the bag body. The shape of the back is designed according to ergonomic principles. The back is wide and thick, and the shape is in line with the physiological curve of the human body. "S" shape design, and there are chest straps that prevent the straps from sliding sideways, making backpackers feel very comfortable. And all of these packs have a sturdy, wide and comfortable waistband that can be adjusted in height. Users can easily adjust the straps to their own height according to their body shape. Generally speaking, the bottom of the backpack is above the hips, which can transfer more than half of the weight of the backpack to the waist, thereby greatly reducing the burden on the shoulders and reducing the damage to the shoulders caused by long-term load. The body structure of the long-distance travel backpack is similar to that of the mountaineering bag, except that the body is wider and equipped with many side pockets, so that the scattered objects can be sorted and placed. The volume of medium-sized backpacks is generally between 30 and 50 liters. These backpacks are more widely used. For 2-4 days of field trips, travel between cities and some long-distance non-camping self-help travel, medium-sized backpacks are more suitable. . The clothes and some daily necessities that you bring with you can fit. There are more styles and types of medium backpacks. Some backpacks have added side pockets, which are more convenient for packing items. The back structure of these packs is roughly the same as the larger packs. The volume of small backpacks is less than 30 liters. These backpacks are generally used in cities. Of course, they are also very suitable for 1-2 days of outings.

Empty the backpack You don't want to ruin things you leave in the backpack while you're washing it. Turn the backpack upside down or use a small vacuum cleaner to reach the inside corners of your backpack which may contain small particles of dirt. Once you have finished emptying your backpack, do not close the pockets.Put all the things that were in your backpack in a plastic bag so you can put them back in once the bag is clean. This way you won't lose any important items.If you notice your things are dirty, clean them now while you wash your backpack. You should not put dirty things back in your clean backpack. Prepare your backpack for washing Use your hands to remove dirt and exterior dust. Then use a damp cloth to lightly wipe the outside of the bag. This removes dirt buildup and keeps the cleaning water as clean as possible. If your backpack has a frame, be sure to remove it before attempting to wash the bag.Remove the detachable pockets and shoulder straps from the body of the backpack and clean them separately. This will ensure that every part of the backpack is thoroughly cleaned.Cut the excess threads near the zippers. This allows you to ensure that in addition to your clean backpack, you will also get a backpack without threads blocking zippers. Check the backpack tag You should always follow the backpack cleaning instructions (if there are any) to make sure you don't wash your backpack in a way that could damage it. Labels with cleaning instructions are most often found on the inside along a seam, usually near the main zipper. Backpack care labels most often contain information for washing and drying the bag properly and ensuring it lasts longer.Certain chemicals or cleaning techniques can damage the backpack (eg its ability to resist water), so you should follow the instructions that come with the bag.If the backpack doesn't have a label on how to care for the bag or how to wash it, test a small area of ​​the fabric to see how it reacts to the products you want to use. Pre-treat stains Use any stain remover as a pre-treatment on dirty spots, but do not bleach. Use a soft brush (such as an old toothbrush) to scrub away stain residue and let the treatment work for 30 minutes. Most stains should disappear when you wash the backpack.If you don't have a pre-treatment cleaner, you can use an old toothbrush dipped in a solution of one part water and one part laundry detergent. Fill a large sink or tub with lukewarm water You can also do this in a large basin. Make sure you have plenty of space to wash all the pockets and compartments of your backpack. Avoid water that is too hot, as it may cause the colors to fade.If the backpack label tells you not to fully immerse the bag in water, try dampening the parts you want to clean with a damp cloth. Add a mild detergent to the water The detergent you use should be a mild cleaner that is free of dyes, fragrances, and chemicals. Harsh chemicals could damage the fabric of the backpack (which reduces the effectiveness of the airtight layers of the bag), and perfumes and dyes could irritate your skin.Scrub the backpack with a soft brush or dishcloth. You can completely immerse the backpack in water or use a brush or a cloth dipped in water. The brush will help you clean particularly dirty areas while the dishcloth is more suitable for general cleaning of the bag.You can use a toothbrush to remove stubborn stains from the fabric of the backpack and to reach more difficult areas. If your bag is made of delicate fabric, such as mesh fabric, you should use a sponge instead of a brush to avoid damaging the fabric. Dry the backpack Allow the backpack to air dry instead of tumble drying. If possible, hang the bag upside down with the pockets open until it is dry. You can also try drying the backpack in the sun. This will also make odors disappear.Before using the backpack or storing it somewhere, make sure it is completely dry. Leaving moisture in it while you use it or put it somewhere increases the risk of mold growth.