Which of these two school bag fabrics is better?

D is the abbreviation of denier, which is a fineness expression method of chemical fibers, which refers to the weight grams of 9000 meters of filament at a fixed moisture regain rate, also known as denier number. The larger the d, the thicker the yarn. e.g.: 75d is thicker than 50d.

Abrasion resistance of fibers: Fibers and their products are constantly subjected to friction during processing and actual use. The abrasion resistance of fibers refers to the ability of fibers to withstand external wear and tear.

The abrasion resistance of fibers is closely related to the fastness of their textile products. Abrasion resistance is an important indicator of the performance of clothing fabrics. The abrasion resistance of fibers is related to factors such as macromolecular structure, supramolecular structure, elongation at break, and elasticity of fibers.

The order of the abrasion resistance of common fibers is as follows: nylon, polypropylene, vinylon, ethyl, polyester, acrylic, chlorine, wool, silk, cotton, hemp, Fuqiang fiber, cupra fiber, viscose fiber, acetate fiber, glass fiber. Nylon is nylon.

Fabrics made of fine fibers are prone to fluffing and pilling, while coarse fiber fabrics can be used to make stiff, rough and thick fabrics.

PVC should be laminated with a waterproof effect.

So the second one is better for you to do what you want.

d is the thickness of the yarn, which refers to the thickness of the yarn per unit length.

It is the grammage of a fiber or yarn with a length of 9 km under standard temperature, humidity and air pressure.

Now this unit is not used, and the "count" is mainly used

In the case of the same parameters, I will choose polyester cloth PVC. Polyester is a chemical fiber with better applicability.

The more common fabrics used to make primary school school bags mainly include: cloth materials, leather materials, and plastic materials, and cloth materials are commonly used in polyester, nylon, canvas, oxford cloth, etc., leather materials include artificial leather and natural leather, and plastic materials include EVA, PC, ABS, PP, etc.

Most of the children in primary school are more active and active, and with the increase in schoolwork, the weight of the schoolbag is larger, so there are higher requirements for the sturdy and durable performance of the schoolbag. At present, there are many kinds of fabrics on the market, and the performance of different fabrics is different.

Many schoolbag manufacturers began to pay more attention to the carrying system of the schoolbag, considering that there are more books and all kinds of learning utensils for students to go to school, and many of them are heavier, but many schoolbags on the market are more traditional, the most obvious is that the burden is not decompressed, and it is easier to break, schools and parents have called on businesses to start from the aspect of reducing pressure when designing schoolbags.

Comparison of school bag materials

Among the three major materials of school bags, the more wear-resistant, durable and cost-effective is cloth material, such as nylon, polyester, etc. are commonly used fabrics for custom primary school school bags, nylon fabric has the characteristics of lightweight, good waterproof performance, wear resistance and scratch resistance, high strength and toughness, polyester has the advantages of firm and durable, wrinkle resistance and iron-free, waterproof and lightweight, good shape retention, not easy to fade, etc., these two fabrics are popular in the market for school bag fabrics.

Leather material is divided into artificial leather and natural leather, the surface style of artificial leather is very similar to natural leather and the cost is low, but its wear resistance is far less than natural leather, artificial leather to make school bags, although it looks high-end, but not strong and durable enough, a little scratch, the capacity is rotten, more importantly, the leather fabric made of the schoolbag is heavier, not as light as the cloth material.

The natural leather ** is expensive, poor waterproof, fine maintenance, and is not suitable for batch customization of primary school school bags. Plastic materials such as EVA, PC, ABS are mostly used to make some special-shaped school bags, which are some hard-shell school bags that we often say.

The shape of these schoolbags is fixed, the production process is mostly to open the mold to customize, the appearance of the schoolbag is exquisite, shockproof and compressive, but the cost is high and the wear-resistant and durable performance is poor, and the surface will be spent, and the fixed shape of the schoolbag is not convenient to store, therefore, it is not very suitable for making batch customized primary school schoolbags.

In my opinion, nylon fabric is better, and nylon is the most used school bag material, is an important variety of synthetic fibers, also known as polyester fiber, cheap, regular material, strong, wrinkle-resistant, wear-resistant, easy to clean. Oxford cloth is mostly used in computer bags, outdoor hiking bags and luggage, and is mainly used in children's school bags with low-density specifications, generally less than 500d materials. Materials higher than 500d (500d, 600d, 1200d) are generally used for areas that are prone to wear and tear, such as the bottom of the backpack, and the high-spec 1680d is mainly used for computer bags.

The stripes of the Oxford schoolbag are clear, and the obvious textile stripes can be seen on the appearance of the schoolbag as shown below. Oxford cloth is characterized by being strong, wrinkle-resistant, soft and breathable, wear-resistant, and easy to organize!

In the main fabric of the bag, the material and cloth texture, rubber soler, and color can be basically divided into levels.

1。The material is the main reason for determining the grade of the fabric, and the most expensive material of nylon is also higher in relative grade, such as TNF

or pie. Gregory.

Colombia. Wolfpaw Dort.

Firinu is basically a bag made of nylon, Samsonite.

Alpine adidas

nikedoite

It is a little lower than the previous brands, and Northland.

Carrymore and the like are the third echelon, and there are some very practical brands in China; In addition, it is polyester, nylon polyester is a relatively common cloth of these two, canvas is a kind of cotton polyester cloth, washed cloth is a major feature, kipling little monkey is specially washed cloth to make bags, I personally think that between nylon and polyester grades, the basic materials for bags are these, of course, there are other patented fabrics that can be lifted and pulled, etc., which are super high grade of nylon. So how to divide nylon polyester cotton, cotton cloth is basically everyone can distinguish, nylon is white smoke when burned with fire, and polyester is black smoke when burned with fire. To sum up, the material of nylon is better than polyester.

It mainly depends on what material you like, generally leather, canvas, and zipper material, like a landlubber backpack, which is made of zipper, which is more special and durable. The leather is waterproof, and the canvas is wear-resistant. Each has its own goodness, depending on which quality you need.

Oxford cloth is waterproof.

The canvas bag is breathable and durable.

Both of the above packages are fine.

Of course, the quality is good and expensive! If it's cheap, do you think the quality can be good? Don't you say?

No matter how good the material is, it depends on what kind of person uses it, take care of it, and the material is not very important.

Generally, we don't have to say what materials we have to buy when we choose school bags. It's good to let the manufacturer consider this. Combined with factors such as appearance, capacity, etc., you can buy a branded sports school bag.

The quality and appearance will be more satisfactory, and the ** of the sports bag will not be very high. In terms of material, in fact, the basic schoolbag is not too much of a leather or other material, generally chemical fiber, high strength, tensile resistance, wear resistance, light weight and so on.

Summary. Hello, dear, the material is not bad, the toughness is good, and it has high tensile and compressive strength. The specific tensile strength is higher than that of metal, and the specific compressive strength is comparable to that of metal, but it is not as rigid as metal.

What material is good for the school bag.

Hello, dear, the better material of the schoolbag is: nylon fabric is more durable and durable, mainly PU, canvas, cotton, oxford, cowhide, polyester, denim, tweed, PVC and sheepskin and other materials, are OK, thank you for your consultation, I hope I can help you, I wish you a happy life and smooth work.

What is the price of nylon?

Hello, dear, nylon raw materials ** are about 500 yuan a ton.

What about the nylon material?

Hello, dear, the material is not bad, the toughness is good, and it has high tensile and compressive strength. The specific tensile strength is higher than that of metal, and the specific compressive strength is comparable to that of metal, but it is not as rigid as metal.

What about the material of polyester?

Hello, please, the material of polyester has strong elasticity and good heat resistance, and polyester has the best heat resistance and strong plasticity in chemical fiber fabrics.

What about the material of PU?

The ground is gentle; Relatively easy to care for; Moreover, PU leather is an environmentally friendly material.

Which material is strong and cheap?

The nylon material is strong and inexpensive.

So in general, which material is the best and cheapest?

Hello, dear, nylon material is strong and cheap.

Hello, 1. Oxford textile fabric has soft color, soft cloth body, good air permeability, comfortable to wear, easy to wash and quick-dry, and is mostly used as shirts, sportswear and pajamas.

2. The biggest advantage of nylon fabric is that it is strong and wear-resistant, which is the best one. The density is small, the fabric is light, the elasticity is good, the fatigue damage resistance is also very good, the chemical stability is also very good, and the alkali resistance is not acid resistant!

3. Polyester is the simplest of the three synthetic fibers, and it is relatively cheap. In addition, it has the characteristics of strong and durable, good elasticity, not easy to deform, corrosion resistance, insulation, crispness, easy washing and quick drying, etc., which is loved by people.

Fabric - All in nylon. Strong tenacity. All fabrics are tested for waterproofing and decolorization before use, and can withstand up to 6,000 rpm of sanding. Tough and durable.

Zippers - All zippers are honed and tested. According to statistics, each schoolchild uses an average of about 25 times a day to zip the schoolbag, ensuring that the zipper will only wear out and will not be damaged within three years.

Reflective materials - all of them are made of international well-known brand 3M reflective materials. It can improve the driver's alertness at night.

Back Protector - Ergonomic, like the second spine of the human body, it can distribute the weight of the bag to the hips and pelvis.

Body Shaped Shoulder Straps - Distribute 80% of the weight of the bag to the hips and pelvis. Reduce pressure on the back bone.

Chest Cord - Stabilizes the bag and reduces the pressure on the shoulder muscles.

Hip Cord - Secures the bag to the hips to prevent the bag from swaying from side to side when walking and running, and the weight can be evenly distributed across the spine, hips and pelvis.

Inner cable strap - Position the book in the bag without swaying from side to side.

Webbing - Passed tensile test.

Usually the backpack fabric is polyester and nylon.

Polyester is characterized by high strength, heat resistance, corrosion resistance, strong light resistance, easy to absorb odors, such as the smell of sweat on the body, if you carry this backpack for a long time, the backpack will leave the smell of sweat, affecting the use.

Nylon is characterized by high abrasion resistance, light weight, good elasticity, and does not easily leave the smell of sweat.

If you like to sweat, it is recommended to choose a backpack made of nylon fabric; If you often use the backpack in bright light, it is recommended to use polyester fabric.

The main fabrics of backpacks on the market are PU, canvas, cotton, oxford, cowhide, polyester, denim, tweed, PVC and sheepskin. According to the above fabrics, different fabrics are suitable for different types of bags.

For example, in the case of travel bags, leather ones are not so suitable, especially in outdoor sports, and canvas and denim are relatively better materials.

If it is a casual bag, it is better to have cowhide. Cowhide is not only breathable, but also very high-grade to carry. In addition, sheepskin is also a new trend in recent years.

However, the market share of sheepskin is much smaller than that of cowhide. In casual or decorative bags, leather should be the mainstay. Products that are not leather enough** are also relatively expensive, ordinary brand leather bags** may also need hundreds of yuan, and slightly larger leather backpacks** or even thousands.

The most important thing is to look at the individual's usage. As far as leather and canvas are concerned, although leather looks high-end, it is not as strong and durable as canvas, and it is relatively difficult to clean. It is best to also look at the individual consumer.

Although Niu Qi is high-end, it is relatively too expensive; PU products have developed rapidly in recent years and have gradually become the most popular bag material in the market. Therefore, there are many people who think that this material is very good.

Schoolbags are generally made of fabric, and then there are fabrics of different compositions, and there are also schoolbags made of artificial leather and genuine leather.

PU leather or canvas and so on to copy the translation results to Google Translate.

Can be waterproof. It won't break easily if you cut it with a blade.

The table word bai yun is long, and Liu Bei and Zhang Fei Taoyuan are married. In XVIII

When the princes of the town asked Dong Zhuo, Wenjiu beheaded Huaxiong, and the three British versions fought against Lu Bu.

Quan Liu Bei Xuzhou was defeated, and about three things were surrendered to Han and not Cao, to relieve the siege of the white horse for Cao Cao, behead Yan Liang, and punish Wen Chou. After learning that Liu Bei was gone, he rode alone for thousands of miles, passed five passes and killed six generals, beheaded the Caiyang brothers to relieve doubts, and gathered the three brothers in the ancient city. During the Battle of Chibi, Cao Cao was released in Huarong Daoyi.

Liu Bei called the queen, Guan Yuguan worshiped the head of the five tiger generals, led the troops to capture Xiangyang, flooded the Seventh Army, beheaded Pang De, captured the ban, and shocked China. During the battle of Fancheng, he was plotted by poisoned arrows and scraped his bones to cure the poison. Later, due to the sneak attack by Lv Meng of Eastern Wu, Xu Huang took the opportunity to attack Yancheng, Guan Yu suffered from the enemy on his back and defeated Maicheng.

Zhang FeiActor --