How to distinguish the quality of Sunglasses

Judging the advantages and disadvantages of Sunglasses can be examined from both quality and aesthetics.Aesthetic has personal factors, and quality is standard.The quality of Sunglasses mainly refers to the quality of the lens.At present, the world's general standards are the standards of the US Food and medicine and Health Inspection (F D A) standard.

1. According to the F D A standard, while the lens guarantees the light transmission rate, it is necessary to filter more than 90 % of the ultraviolet rays in the sun, and the lens should be labeled "UV-100protct10n"."UV-400protct10n" tag, so it is very important to check the UV tag on the lens.

2. The lens must not have the "degree" of optical lenses.Generally, if the refractiveness exceeds 15 %, it will feel dizzy when wearing.

3. The lens must have a high strength and pass the impact test.Generally speaking, the strength of plastic film (propionic acid or acetate), resin tablets, and glass tablets from small to large.

How to distinguish the quality of Sunglasses lens quality

1,Material of the lens

glass lens: wear resistance, but relatively speaking, its weight is heavier than other materials, and it is also easy to break.

Popular resin lens: This kind of lens is lighter than glass lenses, impact resistance, and is not easy to break, but the hardness is low, so it is easy to get hair and it is easier to have scratches.

2. The refractive index of the lens

The higher the refractive index, the thinner the lens, the higher the price.Such as the optical characteristics of the lens:SunglassesIt is a flat -light mirror, which cannot be littering, and should not have optical defects that affect vision.

The simple method of identification is to place the Sunglasses in front of the eyes and observe the distant targets through the lens, such as window frames or door frames, and then move the glasses up, down, back and forth, the target should not be swinged and wavy deformation.

3. The color of the lens

Sunglasses are divided into dark and light colors without color distortion.The choice of the color shades of the lens should be depends on the places of the required activity. Selecting different colors for different light sources and different use occasions, the color of the lens will affect the Shading effect.To enable Sunglasses to effectively block the strong light in summer, dark Sunglasses are needed, but if you wear a bike or drive, you should not choose a lens with darker colors.In addition, when Sunglasses are used for daily driving, they also need to have the ability to identify different color signal Lights.

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sports and casual shoes maintenance method Daquan

one,Leather sneakers

sneakers made of sheep, cowhide, pork Skin and other livestock Skin are leather sneakers. They are rich in breathability and ductility, and they are also very comfortable to wear.But the disadvantage of this shoe is obvious: you cannot touch the water, are afraid of humidity, and high prices.

cleaning method:

1Then, thenUse a shoe brush to brush the dust on the upper, then dip a little shoe oil or other leather cleaner gently to gently wipe the upper. It is difficult to remove stains.If there is no leather cleaning and care agent, you can use your conditioner, you can make the shoes shine from the dim light without light.~

2Then, thenUse a toothbrush to dip the inside of the shower gel or toothpaste to remove the odor, spots and stains inside.

Note:

Wearing leather sneakers, do not wear it when it rains, and damage the shoes a lot.When cleaning, it is best not to use water. Sprinkle water and dry immediately.If you have to go out on rainy days, you can spray waterproof spray on the shoes, which can greatly extend the life of the shoes.

Second, natural fiber or synthetic fiber natural leather sports casual shoes

1. Wet the sneakers first, and then use "leather shoes Shampoo" and soft hair brush to wash stains with "leather shoes Shampoo" and dry brush.Direct irradiation.

2. Because natural leather dyed, the color may be dyed to the fiber, so you should be particularly careful when cleaning the seam position of the two.

3. cleaning of casual shoe insoles (inner bottom)

1. Basically try to avoid cleaning the insole.If there is a odor, you can remove the insoles and place it in the air circulation, and even use shoe deodorant to remove the odor.

2. If the situation is bad, rinse the insoles under the faucet and wipe it gently with a soft brush. Do not use any cleaner, otherwise the fabric fabric may fall off.

3. Dry placed in the air circulation. Do not use hot air bans or hair dryers to force the insoles with a hair dryer, otherwise the insoles may be deformed.

Fourth, sports shoes are treated immediately after rainwater

1. Use a dry cloth to completely dry the water.

2. Use dry cloth or paper to plug in the shoe in the shoe.

3. Dry placed in the air circulation

4. Do not use a hot fan or dry hair dryer to force the sports shoes with a hair dryer.

Five, suede or up fur

1. Carefully use soft hair or nylon brush to clear the dirt with adhesion upper upper according to Mao Shun.If necessary, you can dip the brush for a small amount of "suede or a fur cleaner" and then clean the upper.

2. Dry naturally after stabilizing the shoe type to avoid direct sunlight.

Six, slide leather

1. First use a clean soft cloth (best white) to dip a small amount of "leather shoes Cleaner" in leather shoe cleaner, and wipe it lightly on the upper to remove dirt.

2. Use another clean soft cloth to evenly apply the appropriate amount of "Leather Care Ointment" to the upper uniformly (just apply a layer of thinly, avoid too much weight, or wipe the excessive ointment with cloth),Plim the Skin surface.

3. If stubborn stubborn (such as oil stains), you can wet the staining part (not all sneakers) first, and then use "leather shoes Shampoo" and soft brush to clear the stains, and the soft brush is cleared.Then print it with cloth or thick paper towels to dry the shoe shape and air dry naturally to avoid direct sunlight.

Seven, natural fiber or synthetic fiber sports shoes

Wet sneakers, clean the stains with "shoes shoes Shampoo" and soft hair brush. After the water is overwhelmed, it is printed with cloth or thick paper towels. After stabilizing the shoe type, it is naturally dry, but avoid direct sunlight.

8. Artificial leather sports leisure shoes

1. Try the clean soft cloth (best white) to quickly clean the upper.

2. If the effect is not satisfactory, you can use a small amount of cleaning a small amount of cleaning agent to clean the upper.

3. If the sneakers are too dirty, you can soak the full sneakers. Use "shoes Shampoo" and soft brush to clean the stains.Dry naturally, avoid direct sunlight.

4. Use a clean soft cloth to evenly apply the appropriate amount of "leather care ointment" to the upper, and then brighten the upper.

1. Is comprehensive training shoes leisure or exercise

Comprehensive training shoes are a kind of shoe designed for fitness, training and comprehensive sports. It is characterized by lighter, soft, comfortable, non -slip, wear -resistant.Its comfortable sole and elasticity can help people better adapt to various positions during training, such as squats, lifts, sit -ups, etc.

Introduction to the difference between comprehensive training shoes and casual shoes

Comprehensive training shoes and casual shoes have different design purposes, sole structure and appearance style:

1. Different design purposes

(1) Professional sports shoes designed for training and competitions. It has the characteristics of stability, support, durability, etc., which can meet the needs of athletes in high -intensity exercise.Their design purpose is to ensure the comfort of the foot while providing necessary protection and support to reduce the risk of injury in exercise.

(2) And casual shoes pay more attention to the comfort and fashion sense of daily wear.Their design purpose is to provide a suitable dressing experience in daily life, suitable for various activities in daily life, such as shopping, walking and travel.

2. Different sole structure

(1) The soles of comprehensive training shoes are usually made of very wear -resistant rubber or other materials, which can provide good grip and stability, helping athletes to better control the body in the competition and training.The sole is often equipped with a special shock absorption design to reduce impact in exercise and prevent injuries.

(2) The soles of casual shoes focus on lightness, softness and comfort.Lightweight materials, such as EVA foam or other buffer materials, provide the softness and comfort of the feet.The soles are often equipped with non -slip design to prevent slipping on the slippery road.

3. Different appearance and style

(1) Comprehensive training shoes are usually designed as simple and practical styles, emphasizing their functionality, focusing on functional and not pursuing styles.Generally speaking, they all have a simple color matching, which will not be too fancy or attractive.This is to ensure that the shoes are not distracted, and their attention is concentrated in exercise.

(2) Leisure shoes pay more attention to fashion and appearance design. They often use bright colors and fashionable design elements to match with different clothing.Such a design can enhance the appearance of the shoes and make it a stylish decoration.

3. How to choose comprehensive training shoes and casual shoes

The previous article has simply understood the difference between comprehensive training shoes and the difference between training shoes and casual shoes. So how do you choose comprehensive training shoes and casual shoes?

If you are a athlete or need high -intensity training and competition, then comprehensive training shoes are your first choice; if you need a pair of light, soft and comfortable shoes to cope with daily life and activities, then casual shoes may be moreSuitable for you.

1. Why are the standard size of ice and petherons a little small?

Ice hockey shoes have a variety of length and width. However, it should be noted that most icehouse shoes are not traditional shoe codes. Generally speakingWhy is this?

In fact, the reason why ice hockey shoes are smaller is mainly because Ice and soy shoes are different from traditional shoes. Ordinary shoes are for comfort, and ice hockey shoes are for professional level protection and taxiing technology. Excessive size will cause ankle joints.The stability is poor, so that the blisters and the decrease in the slide capacity appear. Therefore, in general, the codes of ice hockey are 1-1.5 yards smaller than the shoe code. Of course, this is just a rough estimate.Another set of size algorithms that are completely different in shoe codes, you need to pay attention when buying.

2. How to choose a size of shoes for buying ice hockey shoes

When buying ice soy sneakers, it is important to choose the right size. Avoid the laziness and saving size. It is generally recommended to choose after trying it on.Try to be as precise size as much as possible:

1. First of all, according to the length of the feet on the measuring board, measure the width of the foot and visual inspection of the arch of the foot to visually determine the foot type and choose the appropriate icehouse shoes.

2. Then, first use the sitting position when trying it on. At this time, the big toe can gently touch the front cover of the ice coat shoes as the ideal.

3. Finally, when the center of gravity falls to the middle of the feet, the back heel should be firmly locked in the heel bag. At this time, the big toe should no longer be exposed to the front lid of the icehouse shoes.Essence

When buying icehouse shoes, it is recommended that you go to the professional ice hockey equipment store to buy ice and petal shoes under the guidance of professionals. Professional ice hockey equipment stores can also provide comprehensive supporting services, such as hot -fixed type, grinding knife service and even even are even a knife service and even a knife service and even a knife service and even a knife service and even a knife service and even a knife service and even a knife service and even a knife service and even a knife service.The inside of the shoe body of the ice sneakers is modified to eliminate the pain points caused by a small number of players for special foot types.

1. How to open the blade with speed skating knife shoes

The just -bought Ice knife shoes need to be used to use it. The ice knife is not open because the blade is blunt, and it cannot be eaten on the ice.There are generally three blade methods of Ice knife shoes:

1. Mechanical grinding

Motorcycles are processed by professional machines.

2. Semi -mechanical grinding

Use sand wheels to grind the blade. Due to the large wear, it is only suitable for rough grinding, and then manually polished.

3. Manual grind

The cost is low and the effect is good. People who have high requirements for skating quality are manually grinding by themselves.Speed skating knife shoe handmade grinding is generally flat grinding: fix the ice shoes on the grinding shelf, bring gloves, and carefully check whether the two knives are on the same plane.You can use the large sand wheels back and forth a few times to see if the grinding marks are uniform.After confirmation, use the large sand wheel (30cm diameter) to make the "8" shape, until the burrs appear on both sides of the blade, and the rough grinding is completed.Then use coarse oil stones to continue making "8" fonts until the grinding traces are particularly small. After removing the knife surface and the burrs on both sides with fine oil stones, a pair of shoes is worn.Remove the ice shoes and clean the surface dust and residue.

Second, Ice knife and shoes are standard

To what extent to open the blade of Ice knife and shoes is a question that many friends are more concerned about. In fact, the Ice knife shoes have no specific labeling. Generally, the thumb is dried up.There is a depression.

3. precautions for Ice knife shoes

1. If the blade requires a high blade, you can choose to grind the knife, but if you are not a professional ice skaters, it is not recommended to choose hand -grinding, because the degree of grinding when the knife is grinded is difficult to grasp, it is easy to put the ice knife knife.Follow.

2. In order to prevent the damage of the blade and reduce the service life of the ice knife, it is recommended that beginners and enthusiasts try to choose professional mechanical grinding when grinding the knife.

3. The skate -Ski knife is a fine work.

4. The knife of the ice shoes has two blades inside and outside. Before the ice knife, you must first see if the inside blade is as flat as the outer blade.

5. Beginners are afraid of falling, and often use the inside blade to contact the ice surface. After a long time, the inside blade is lighter than the outer blade. At this time, you must first use the flat wheel to make the inside blade generally high, and then use the grinding gap.The sand wheel grinds a gap between the inside and outside.

6. In order to ensure the flatness of the ice blade surface, the eyes must follow the ice knife closely to avoid wear.