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What material is the e v a?What is the use of the EVA?EVA materials often appear in our daily life, only we often neglect it, perhaps we only know the finished product made of it, but neglect what material is made. It is due to this kind of people's natural negligence, so eva materials become a name in the crowd.So what is EVA material, and what does EVA use?The following is by the Guohui process Xiaobian for our introduction. One: What material is the Eva Eva material is commonly known as our definition, English full name is ethylene-vinyl acetate copolymer, its chemical name is vinyl acetate copolymer, is a very ordinary material, is a common class in daily life of midsole materials, made with it has good soft, shock, skid, pressure resistance, such as our common EVA slippers, cotton shoes, EVA mobile phone case, EVAipad case, etc. 2: What are the uses of Eva materials Use 1: eva materials can make home refrigerator pipes, gas pipes, civil construction plates, containers and other household goods and daily necessities. Use 2: eva materials can make packaging for thin film, gasket, medical equipment, and can also be used as hot melt adhesive, cable insulation layer, etc. Use 3: eva materials are widely used in book wireless binding, digital product shell structure parts, furniture sealing, car and household appliances assembly, shoes, carpet coating and anticorrosion coating of metal. III: Application field of Eva materials Field 1: Because the EVA material is very soft, chemical corrosion resistant and good elastic, so he is widely used in the sole and interior materials of various footwear.EVA gamepad Bag Field 2: eva material has inclusive and crosslinking properties that other materials do not have. It is because of this function, so it is suitable for use in halogen-free flame retardant cables, semiconductor shielded cables and two-step silane crosslinking cable, and also because it is widely used in industrial and manufacturing supplies.

Guangdong's exports of plastic products are the largest in domestic provinces. The overseas market is very important for Guangdong plastics companies and has a large space. Of course, the main consumption of plastic products is still domestic, especially since the Golden Crisis, and quite a lot of domestic areas are waiting for the plastics industry to enter. Domestic and foreign markets are equally important for the plastics industry. From the statistics of the plastics industry, Guangdong is the province with the largest share of domestic plastics exports. Taking 2011 as an example, Guangdong `s exports of plastic products accounted for one-third of the country `s total. Among the output values of plastic products, export delivery value accounted for 28% of the output value, and 46% of the country `s plastic product export delivery value. Therefore, the foreign market has a lot of room for the Guangdong plastics industry. Since the financial crisis, many plastic companies are adjusting and using the financial crisis as a business opportunity to open up new foreign markets. In this regard, Guangdong's daily plastic products maintain a clear advantage. In the past two years, the Guangdong Plastics Association and related leading enterprises have actively promoted the upgrading and transformation of the production of traditional plastic daily products. Among them, the overseas market for plastic household products has expanded significantly. The Plastics Household Products Professional Committee of the Guangdong Plastics Association should be established. "Supply Export Base" settled in Jieyang. The financial crisis has instead promoted the upgrading of some plastic products and the transformation process of enterprises. Of course, the main consumption of plastic products is still domestic. There are quite a few domestic industries and fields waiting for the entry of the plastic industry and the need for supporting plastic products. At present, the per capita consumption of plastic products in China is only slightly higher than the world average, and there is huge room for development. Among car companies, Toyota still occupies the championship in Australia in July with a market share of 19.3%; the brand is still ranked second with a market share of 11.2%; Mazda `s sales in Australia surpassed Hyundai `s last month to 9.4% Share ranks third. Hyundai Motor and Ford ranked fourth and fifth respectively with 8.3% and 7.5% market shares.

Makeup bag can be said to be a necessary product of the majority of women, not only so, just want that the previous makeup makeup bag has not been satisfied with the needs of people now, now the makeup bag does not only pay attention to the capacity and planning of the bag, for the appearance of the planning, also have great requirements.I believe that many people can also see, some women directly go out with the makeup bag, the mobile phone keys can be stored in, not only convenient, but also very fashionable and beautiful. The heart of beauty, people have, many women like to buy good things, clothes, bags, accessories and so on.Beautiful products with appreciation value can often constitute a strong stimulation to them, so that they can not help but have excitement, affect their shopping mood, resulting in some desire to buy or possess, thus laying the foundation for the completion of the purchase behavior. When she saw the commodity at the first glance, must see outside packaging, and then interested in looking, they in consumption activities, in addition to satisfied with their basic life consumption demand or make yourself more beautiful, more fashionable, also may pursue high grade, high quality, high price of brand products or in appearance with strange, extraordinary, elegant products, to show its status, economic rich, elegant taste, etc., and cosmetics is able to decorate more beautiful things, so the majority of women like, and in terms of purchase, can not restrain themselves!When buying cosmetics, together also need a very delicate makeup bag as a cosmetics storage thing, that is, the makeup bag.Although the appearance of the makeup bag is very important, but many women for such bags still pay more attention to practical and quality, everyone usually go out to take what things are fixed, so when choosing the makeup bag, capacity and beautiful together is important. Makeup bag market is a huge potential consumer market, although unlike many cosmetics occupy women consumption larger spending part, but the market share and profit is certainly not a few, therefore, the makeup package planning optimization, do a little more portable, more convenient to go out to carry, will be more popular!

What are the advantages and effects of EVA headset package compared with ordinary plastic absorption packaging?Headphones is a common product in people's daily life, but headset line is thin is easy to break, so it involves using eva headphones for protection, then by small make up explain EVA headset package compared with ordinary plastic packaging advantages and role: fashion elements are always inseparable from the exquisite packaging, a high-end delicate headphones, always love, ordinary plastic packaging, when we buy back headphones is abandoned.Then the problem appeared, when we went out, we felt that the headphones did not fit anywhere, the travel bag, east to west, Bluetooth headphones are not easily found, wired headphones inadvertently pull off the audio line, with earcover headphones are easier to crush the earcover.Summarize the following six major points: The surface of 1, eva headphone bag PU beef tendon internal composed of velvet fabric; 2, selected fabric, comfortable, beautiful fashion, pressure resistance; 3, delicate zipper, make the zipper more durable, the package design has fixed support; 4, pressure resistance, smooth touch, bright color, lasting and high texture; 5, various electronic accessories headphones, such as computer accessories headphones, DVD headset, etc; 6, data cable, headphones, storage card, MP3,U card, card reader, Bluetooth adapter, change, etc. The above shares the advantages and effects of EVA plastic headset package compared with ordinary plastic absorption packaging. EVA materials have: resilience, high tension resistance, strong toughness and good shock / buffer performance, so it will be more and more widely used in life.

Fashion elements are always inseparable from the exquisite packaging, a high-end delicate headphones, always fonput down, ordinary plastic packaging, when we buy back the headphones is abandoned.Then the problem appeared, when we went out, we felt that the headphones did not fit anywhere, the travel bag, east to west, Bluetooth headphones are not easily found, wired headphones inadvertently pull off the audio line, with earcover headphones are easier to crush the earcover.Headphones are a common product for people's daily life, but it is easy to tear down the thin headset cable, so it involves protecting it with eva headset bag. What are the advantages and effects of EVA headset box compared with ordinary plastic packaging?Summarize the following six major points: 1, anti-pressure anti-fall, smooth touch, bright color and lasting and high texture, small volume and easy to carry 2, packs data cables, headphones, storage cards, MP3,U disks, card readers, Bluetooth adapters, change, etc The 3, features a delicate zipper for a more durable zipper and a fixed inner support The face of the 4, eva headphone package PU beef tendon is made of velvet fabric 5, can install various electronic accessories headphones, such as: computer accessories headset, DVD headset, etc 6, selected fabric, comfortable feel, exquisite fashion, pressure-resistant and beautiful We share the advantages and effects of the above EVA headset box compared with ordinary plastic absorption packaging. EVA materials have: resilience, high tension resistance, strong toughness and good shock / buffer performance, so it will be used more and more widely used in life.

What does the EVA toolkit need to take care for when making the EVA toolkit ready?Many businesses do not understand, today Xiaobian to and you all over: 1, defines the EVA toolkit EVA toolkit can be customized in many kinds, can install a variety of usually not commonly used small things, such as: pen, fruit knife, scissors, mobile phones, headphones, small tablet computers, tablet game console, etc., can also be used.We order EVA kit, to know the work and purpose, to give the manufacturer of EVA kit clear customization requirements. 2, clearly defines the EVA toolkit population The EVA kit uses differently and the eva kit custom population varies.Toolkit bags are generally used to migrant workers things, absenteeism things, but also multi-function kits, household throughout similar.Customized customers include car repair things, motorcycle repair things, various hardware materials, meters and so on. The 3, eva toolkit works as a partner EVA toolkit customized manufacturer should have formal company registration information, EVA toolkit site and relevant quality certificate.Generally better eva kit, iron pendants are relatively sturdy steel, rather than iron wire to charge you. 4, if it is the kind of backpack, generally all the stressed parts, are used a few more layers of canvas, and with a sewing machine rolled very dense.The strap is wide, and the arms have a large shoulder pad, which is a good thing.All the fastenings are very strong engineering plastic casting.And relatively thick.

What are the influencing factors responsible for the fading of plastic EVA products?I believe that many people are very worried about EVA products will appear such problems, in fact, EVA as the current heart material appears in home life, it often acts as sound insulation materials, ground materials, buffer materials and so on appear in the decoration engineering.EVA materials have many benefits as a carpet, such as, for example, excellent earthquake resistance, waterproof, electricity and so on.So today Guohui process products with us to summarize the four reasons why plastic EVA products fade: The ements affecting the fading of plastic EVA products, the fading of plastic color products is related to pigments, dye light resistance, oxygen resistance, heat resistance, acid and alkali resistance and properties of the resin used.The main material shall not be selected after the above functions of the required pigment, dye, surfactant, dispersion agent, carrier resin and anti-aging aid are generally evaluated according to the processing conditions and application requirements of the plastic products. First: four reasons for the fading of plastic EVA products: 1, fading of acid and alkali resistance to coloring plastic products is related to its chemical resistance (acid and alkali resistance, oredox resistance). For example, molybdenum chromium red is resistant to dilute acid, but sensitive to alkali and cadmium yellow acid. These two pigments and phenolic resins play strong reduction effects on some pigments, which seriously affect the heat and weather resistance of the pigments and fade. 2, antioxidant Some organic pigments fade after the degradation of large molecules or other changes after oxidation. This process is high temperature oxidation in processing, the other is oxidation in strong oxidants (such as chromate root in chromium yellow).Lake, azo pigment and chrome yellow mixing, red will gradually decrease. The thermal stability of 3, heat-resistant pigments refers to the degree to which the pigments heat lose weight, discoloration and fade at the processing temperature. The components of inorganic pigments are metal oxides and salts, with good thermal stability and high thermal work resistance.The pigments of organic compounds will undergo molecular structure changes and a small decomposition at a certain temperature.In particular, for PP, PA, PET products, the processing temperature is above 280℃. When selecting the colorant, attention should be paid to the heat resistance of the pigment, on the one hand, the heat resistance time of the pigment should be considered, and the heat resistance time is 4-10rain. Light resistance of 4, resistance pigments directly affects the fading of products. Outdoor products illuminated by strong light, the light resistance (sun resistance) level of coloring used is an important indicator, light resistance grade difference, the products will quickly fade in application.The light resistance grade of weather resistance products shall not be lower than six, it is best to choose seven or eight, and indoor products can choose four and five.The light resistance function of the carrier resin also has a great effect on the color change, and the molecular structure caused by ultraviolet light changes and fades.Participating in optical stabilizers such as ultraviolet absorbers in the mother material can improve the light resistance work of coloring agents and coloring plastic products. Ferrari EVA Watch Box Second: EVA materials generally have the following 6 characteristics. 1, Water resistance: closed bubble hole structure, no water absorption, moisture resistance, water resistance work is excellent. 2, Corrosion resistance: corrosion resistance to seawater, oil, acid, alkali and other chemicals, antibacterial, non-toxic, tasteless, pollution-free. 3, machining: no joint and easy to heat pressure, cutting, coating and paste.

Share how to buy EVA computer bag! EVA computer bag to buy methods and pay attention to the details of what? We all know that if you want to avoid your computer's motherboard or other accidental damage, owning a computer case is also a good choice. Of course, if you use a computer bag, do you have the courage to open it? So if you can put up with people's incomprehensible or contemptuous stares, but also want to have a unique computer case, this is a good choice. Differences: there are differences in workmanship and fabric. The general original package will be poor in the choice of fabrics, some choose poor material, some use less on the material. The original package is not exquisite on do sth. for example, thool is more to reduce the working procedure that checks. Differences in warranty. The original bag is generally guaranteed for one year, while the brand bag is guaranteed for life. Distinguish: the difference of different original package and brand package is not quite the same, but the following methods can be used generally. Work and fabric: this is some professional, the average person is difficult to distinguish; Labels, zippers, logos. For some new iPad aficionados, a computer case is a must. For those who work with water a lot, consider a simple computer case. There's no need to worry about water erosion on your iPad. Even more incredible, it has a strap, so you can wear it around your neck. If you wear it to swim in the water, I believe you will attract many potential consumers. [EVA computer bag purchase details ]
 1, must be with their notebook size perfect match 
 In order to avoid the notebook dangling in the bag to exchange, improve the security of the notebook, must choose a suitable size of the computer bag. When we choose the right bag is not to measure the size of the notebook, the same size screen, different brands, different models, the shape of the size will be a lot of big, so we are the overall size of the notebook and the protective space size of the bag to make a comparison! 2, Eva computer bag material is very important, toughness is the key 
 This performance is most obvious in the low-end package, laptop or four or five kilograms, light, 2, 3 kg, so the bags of it materials first to quality, otherwise, your bags with a period of time, began to appear to fry line, loose shoulder belt hook, etc., an accident, expensive laptop may have fatal injuries. 3, Eva computer bag waterproof and buffering for the essential elements Users buy laptops to work on the move is the real meaning, what if it rains outside or accidentally spilled drinks? If your custom Eva laptop case is a quality product, the laptop inside will be safe in the event of an accident. EVA computer bag selection method and attention to details to share here, Gaoda products for 15 years specializing in the development and production of various materials of hot and cold pressing molding, mold research and development. The industry has one of the top strength manufacturers with molding, lathe integrated production workshop. If you have requirements, please contact us.

What are the precautions and features of EVA glasses case? EVA material has: high resilience and tension resistance, strong toughness, good shock/buffer performance, so it will be more and more widely used in life. Today, we will share the precautions and features of USING EVA glasses case: First: PRECAUTIONS for the use of EVA glasses case There are also precautions for the use of EVA glasses case. EVA glasses should be worn with EVA glasses case, of course. I will teach you to look at some of the places to pay attention to. 1. Before the test, we must go to the hospital to check whether there is eye disease and whether it is an indication for wearing glasses. 2. EVA glasses are not a simple commodity, and matching contact lenses is a complicated medical service process in foreign countries, and the complications caused by poor matching sometimes cost eye loss. Therefore, it is best to choose the lens with good quality and good reputation and high oxygen permeability. 3. Pay attention to personal hygiene and eye hygiene. Do not rub your eyes at will. Wear glasses for no more than 8~10 hours a day. 4. Lenses should be cleaned, disinfected and maintained strictly according to the requirements every day. At the same time pay attention to whether the disinfection nursing solution is within the validity period. Lens cases should also be disinfected regularly, and expired or damaged lenses should be replaced in time. EVA glasses box 5, when the eyes bloodshot, tears should stop wearing glasses; With conjunctivitis, keratitis, dacryocystitis, eyelid adenitis is prohibited to wear glasses; Stay up late or have a fever when the best not to wear glasses; When swimming, bathing, wild sand should also take off the lens. As primary and middle school students now wear EVA glasses, the existence of EVA glasses case is of course indelible, and the demand will be great. Second: EVA glasses case features: 1. Cheap, flexible and easy to carry, it is absolutely the best choice for students to place glasses. There are a set of strict and complicated procedures for contact lenses from matching to wearing, as well as nursing and maintenance. 2. Primary and middle school students are often weak in self-protection consciousness and poor in self-care ability. Due to time constraints every day, it is difficult to clean and care eyes and lenses according to standard operating procedures. 3, combined with the long-term lack of sleep, every day, frequent delay wear glasses with eyes, overload, etc., can lead to corneal local resistance drop, when stay up late, cold or confronted with eye superficial trauma, easy to cause the infection of cornea, conjunctiva, serious still can appear corneal ulcer, perforation and blindness, etc., there have been numerous examples this painful in adolescents.

EVA material has: high resilience and tension resistance, strong toughness, good shock/buffer performance, so it will be more and more widely used in life. Today, we will share the precautions and features of USING EVA glasses case: First: PRECAUTIONS for the use of EVA glasses case There are also precautions for the use of EVA glasses case. EVA glasses should be worn with EVA glasses case, of course. I will teach you to look at some of the places to pay attention to. 1. Before the test, we must go to the hospital to check whether there is eye disease and whether it is an indication for wearing glasses. 2. EVA glasses are not a simple commodity, and matching contact lenses is a complicated medical service process in foreign countries, and the complications caused by poor matching sometimes cost eye loss. Therefore, it is best to choose the lens with good quality and good reputation and high oxygen permeability. 3. Pay attention to personal hygiene and eye hygiene. Do not rub your eyes at will. Wear glasses for no more than 8~10 hours a day. 4. Lenses should be cleaned, disinfected and maintained strictly according to the requirements every day. At the same time pay attention to whether the disinfection nursing solution is within the validity period. Lens cases should also be disinfected regularly, and expired or damaged lenses should be replaced in time. 5, when the eyes bloodshot, tears should stop wearing glasses; With conjunctivitis, keratitis, dacryocystitis, eyelid adenitis is prohibited to wear glasses; Stay up late or have a fever when the best not to wear glasses; When swimming, bathing, wild sand should also take off the lens. As primary and middle school students now wear EVA glasses, the existence of EVA glasses case is of course indelible, and the demand will be great. Second: EVA glasses case features: 1. Cheap, flexible and easy to carry, it is absolutely the best choice for students to place glasses. There are a set of strict and complicated procedures for contact lenses from matching to wearing, as well as nursing and maintenance. 2. Primary and middle school students are often weak in self-protection consciousness and poor in self-care ability. Due to time constraints every day, it is difficult to clean and care eyes and lenses according to standard operating procedures. 3, combined with the long-term lack of sleep, every day, frequent delay wear glasses with eyes, overload, etc., can lead to corneal local resistance drop, when stay up late, cold or confronted with eye superficial trauma, easy to cause the infection of cornea, conjunctiva, serious still can appear corneal ulcer, perforation and blindness, etc., there have been numerous examples this painful in adolescents.

In the customization of EVA tool kit, the selection of fabric raw materials is very important. Only when the fabric is selected correctly can the quality of EVA tool kit products be guaranteed. Then, what are the requirements for the fabric selection of EVA tool kit customization? 1, the customer should be clear about their own requirements on the fabric EVA kit customization for thousands of fabrics, waterproof, abrasion resistant, flame retardant, breathable, and so on, plenty, so customers in the choose and buy fabric, have to clear your own first what is the demand of about fabrics, is want to have what function fabrics in detail, that is looking for a manufacturer consulting understand, Manufacturers can also recommend suitable raw materials according to customer needs. 2. Select fabrics according to your budget Because of the characteristics of the fabric, the price difference is very large. When customers customize the tool kit, if they do not know about the fabric selection, they can seek the assistance of the tool kit manufacturer, so that they can recommend the appropriate fabric according to their budget, which can save time and select a better fabric. 3. Select fabrics according to the use of the kit There are many kinds of fabrics that can be customized for the kit, and different fabrics have different characteristics, such as waterproof, wear resistant, luminous, fireproof and so on. When choosing fabrics with customized kits, we should pay attention to choosing fabrics with relevant characteristics according to the use of the kits. For example, if you customize outdoor kits, the selected fabrics should be waterproof, wear-resistant and scratch-resistant, so that the quality of the outdoor kits will be better.

What is the value of EVA storage package? As the cause of environmental protection continues to launch, now the fashion and environmental protection closely linked. In the market, EVA storage bag has been used as a kind of environmentally friendly and fashionable product packaging. In fact, it refers to the box with environmentally friendly material used to store items. It can be divided into storage boxes or product packaging boxes and other categories according to the function, style and use. Now THERE are many functions of EVA storage box, mainly reflect the protection of products, conducive to transport, suitable for storage, in consumer use can also be very good application. On the other hand, many enterprises will print their brand logo on the appearance of customization, which can play a good publicity effect and brand effect. EVA storage box is not a one-time thing, and people will not throw it away after using it once.

What are the reasons for discoloration of plastic EVA products? What are the factors affecting the discoloration of plastic EVA products? I believe that many people are very worried about EVA products will appear such problems, in fact, EVA as the heart of the material now appears in home life, it is often used as sound insulation materials, ground materials, buffer materials and other materials in the decoration project. EVA material as a carpet has many advantages, such as good seismic, waterproof, electricity and so on. So today I will summarize the four major reasons for the fading of plastic EVA products: The factors affecting the fading of plastic EVA products, the fading of plastic coloring products and pigments, dyes light resistance, antioxidant, heat resistance, acid and alkali resistance and the characteristics of the used resin. According to the processing conditions and use requirements of plastic products, the required pigments, dyes, surfactants, dispersants, carrier resins and anti-aging additives can be selected after a comprehensive evaluation of the above properties in the production of master batch. First: plastic EVA products fade four reasons: 1, acid and alkali coloring plastic products fade and colorant chemical resistance (acid and alkali resistance, oxidation resistance and reduction). Such as molybdenum-chromium red resistance dilute acid, but sensitive to alkali, cadmium yellow acid resistance, these two pigments and phenolic resin on some colorants have a strong reduction effect, seriously affect the heat resistance of colorants, weather resistance and fade. 2, oxidation resistance of some organic pigments in the oxidation of macromolecular degradation or other changes and gradually fade. This process is one of high temperature oxidation in processing, and the other is the oxidation of strong oxidants (such as chromic acid in chrome yellow). Lake, azo pigment and chrome yellow mixed use, red will gradually fade. 3, the thermal stability of heat resistant pigments refers to the degree of thermal weight loss, discoloration and fading of pigments at processing temperature. Inorganic pigments are composed of metal oxides and salts, with good thermal stability and high heat resistance. The pigments with organic compounds will change their molecular structure and decompose a little at a certain temperature. Especially PP, PA, PET products, processing temperature above 280℃, in the selection of colorant on the one hand to pay attention to the heat resistance of pigment, on the one hand to consider the heat resistance time of pigment, usually requiring heat resistance time of 4-10rain. 4, light fastness colorant light fastness directly affects the fading of products. Outdoor products exposed to strong light, the colorant used light fastness (light fastness) grade requirement is an important index, light fastness grade is poor, the product will fade quickly in use. Weatherproof products should be not less than six, the best choice of seven, eight levels, indoor products can be selected four, five levels. The light fastness of the carrier resin also had a great influence on the color change. The molecular structure of the resin irradiated by ultraviolet light changed and faded. The light fastness of colorant and colored plastic products can be improved by adding light stabilizer such as uv absorbent to masterbatch. Second: EVA materials usually have the following six characteristics 1, water resistance: closed bubble structure, not water absorption, moistureproof, good water resistance. 2, corrosion resistance: sea water, oil, acid, alkali and other chemicals corrosion, antibacterial, non-toxic, tasteless, no pollution. 3, processing: no joint, and easy to hot pressing, cutting, gluing, laminating and other processing. 4, shockproof: resilience and tension resistance is high, high toughness, has good shockproof, buffering performance. 5, heat preservation: heat insulation, heat preservation, cold and low temperature performance is excellent, can be resistant to cold and exposure. 6, sound insulation: closed bubble, sound insulation effect is good. Four reasons for the fading of plastic EVA products are shared here. By paying attention to these points above, we can avoid the fading of EVA products and other adverse factors; Due to the advantages of EVA material, it is more and more widely used in daily life.

What about EVA materials? How to customize EVA kit EVA material is a very common material, is a kind of more common in daily life, the finished products made of it have good softenness, shockproof, anti-slip, strong pressure resistance, such as our common EVA bag, EVA tool kit, EVA backpack, EVAIPAD protective cover. EVA toolkit space and plasticity, can be installed tools such as wrench, screwdriver, hammer, or some other tool accessories, can accommodate, in the journey or climbing, the use of EVA toolkit, can prevent moisture, scratch, large capacity and other advantages. Specific process of customized EVA toolkit: 1. According to the requirements of customized EVA toolkit and the size of instruments and equipment, first determine the style and materials, and make effect drawings; 2. Confirm that the effect drawing is appropriate, and make the paper mold according to the confirmed effect drawing; 3. Purchasing sample materials according to the requirements of design drawings; 4, according to the plate division of the paper mold for cutting material; 5. Make samples according to the paper mold; 6. Submit samples. EVA itself belongs to the non-toxic harmless, belong to the environmental protection material, and EVA kit has a good thermal insulation cold and excellent low temperature resistance, resistant to cold and exposure, airtight bubble hole, sound insulation effect is good, airtight bubble pore structure, non-absorbent, moisture-proof, good water resistance, resistance to sea water, oil, acid, alkali and other chemical corrosion, antibacterial, non-toxic, tasteless, no pollution. EVA material can also be made into a variety of daily items, but also to prevent children from eating the harm caused.

With the wide application of EVA material in the luggage production industry, we can often see a variety of EVA luggage products in the market. However, a small number of friends do not know much about the industry and do not know what material EVA is. In view of this, today I would like to introduce to you: what material is EVA in bags and suitcases. EVA material is commonly known as ethylene-vinyl acetate copolymer (EVA for short). Its chemical name is ethylene-vinyl acetate copolymer. EVA has been used in a wide range of fields, and the annual market consumption in China is increasing, especially in the shoe industry. It is used in the soles and interior materials of middle and high grade traveling shoes, climbing shoes, slippers and sandals. The content of vinyl acetate (VA) from 5% to 40%, compared with polyethylene (PE), EVA due to the introduction of vinyl acetate monomer in the molecular chain, which reduces the high crystallinity, improved the toughness and impact resistance, heat intermiscibility of filling and sealing performance, are widely used in foaming material, functional films, packaging mould, hot melt adhesive, wire and cable and toys, and other fields. EVA material is also a common kind of insoles material in daily life. The finished products made with it have good softness, shockproof, anti-slip and strong pressure resistance, such as our common EVA camera bag, EVA computer bag, EVA tool kit, EVA mobile phone protective case, EVAIPAD protective case and other bags and cases.

What should WE pay attention to when choosing Eva glasses case? A lot of people often complain that Eva glasses case has no results, nor has it brought any significant changes. Some people will give the result that "Eva glasses case doesn't work" and so on. But is this really the case? The answer to nature is no, as many successful cases have amply demonstrated the problem. So why is it that some are successful and others are not? In fact, the factors are very simple. The success is not due to the quality of Eva glasses case, the failure to achieve the expected results, or the incorrect method. The difference between the two results lies entirely in the details. Is the so-called detail decision success or failure, will do every detail, very easy to get success, otherwise will not get the expected result, especially the next 2 big attention to things. Eva glasses box I. Continuity of Eva glasses case Nothing is going to happen overnight. It's going to be run-in and transfer at the beginning, management in the middle, and maintenance in the later. However, when making Eva glasses case, few people can notice this. Second, the results need to be exact The results are different, and the corresponding Eva glasses cases are also different. Therefore, the exact need is related to the correct choice of Eva glasses case, as well as the selection of accessories. Eva glasses case has to be self-adjustable, high quality does not mean that very good results can be obtained. Success depends on how well you do it.

See quality, after confirm the brand, we should have to know the manufacturer packaging produced by EVA how the quality of the EVA headphones package, the fabric, such as, of course, this process can also directly omit, premise is you choose EVA earphone bag packaging brand good enough, so basically just no other defects can be bought directly. Combine with own economy to buy Generally EVA headphone bags will not be too expensive, but we should combine our own economic situation to purchase. Functions of EVA headphone package: 1. The appearance of the headphone bag is made of PU tendon material and velvet fabric 2. Selected fabrics, comfortable, elegant and fashionable, pressure resistant and beautiful 3. Choose exquisite zipper to make the zipper more durable and durable. The bag is designed with a fixed inner bracket 4. Anti-pressure, anti-earthquake and anti-fall, smooth touch, bright color, durable and high texture, small size and easy to carry 5, can be installed all kinds of electronic accessories headset, such as: computer accessories headset, DVD headset, etc 6, can be installed data line, headset, memory card, MP3, U disk, card reader, Bluetooth adapter, change

What are the features of the EVA bag? EVA resin as a material is characterized by good softness, rubber-like elasticity, at -50℃ can still have good flexibility, transparency and surface luster, good chemical stability, anti-aging and ozone resistance strength, non-toxic. It has good mixing with filler, good coloring and forming processability. EVA and PEVA are characterized by: 1. Biodegradable: it will not cause harm to the environment when it is discarded or burned. 2, similar to the price of PVC: EVA is more expensive than toxic PVC, but cheaper than PVC without phthalates. 3. Light weight: the density of EVA ranges from 0.91 to 0.93, while that of PVC is 1.32. 4. No odor: EVA does not contain odor like Ammonia or other organic odors. 5. Free of heavy metals: in accordance with the relevant international toy regulations (EN-71 Part 3 and ASTM-F963). 6, no phthalates: suitable for children's toys and will not produce plasticizer release risk. 7, high transparency, softness and toughness: a wide range of applications. 8, super low temperature resistance (-70C) : suitable for freezing environment. 9. Resistant to water, salt and other substances: stable under most application conditions. 10, high heat paste: can be firmly attached to nylon, polyester, canvas and other cloth. 11, low fitting temperature: can accelerate the production speed. 12, screen printing and offset printing: can be used for multi-pattern products (but must use EVA type ink). With bags and suitcases, find Guohui technology,

Packaging enterprises must keep pace with the development of the industry. The above mentioned development forms are not isolated but part of the development of the entire packaging industry. And there is a breakthrough in some aspect. Talent has a certain opportunity in the packaging market before it can occupy a place in the competitive market. The packaging industry in China has been developing rapidly since the 90 century of the last century. Especially in the field of fast moving consumer goods packaging, the development has been particularly rapid. It has effectively promoted the progress of food, daily chemical, daily necessities and medicine industries. At the same time, the development of these industries has further comforted the market demand of various packaging materials and technologies. Faced with this situation, the development of packaging materials for fast moving consumer goods has the following trend. Trend 1 packaging reduction Enterprises usually control interest to ensure profits, and the competition of FMCG industry is becoming more and more intense. Packaging materials, as the supplementary information of fast moving consumer goods, often bear the brunt. Therefore, the interest of packaging materials is often restricted to a very low level. In addition, the amount of data needed to be saved is also in line with the requirements of environmental protection. Therefore, under the premise of meeting the packaging function, the information will be thinner and lighter. A new type of raw material, which is capable of processing thinner films and difficult to process, has already appeared. Such as adding metallocene polyolefins and so on. The thickness of tinplate data used for canning and beverage cans in Europe is only 0.13-0.14mm, which has reached the limit thickness of materials supplied by Steel Corp. Foreign container manufacturers are also competing to develop rigid plastic cans, hoping to replace metal containers with the advantages of light weight, easy forming and low price. Now there are breakthroughs in several varieties, such as cooking cans, beverage cans and milk polypropylene tanks. Trend two data security People's consumption concept is also gradually changing. For many years. From the past, the general protective function of product packaging (such as vision, smell, touch, etc.) has been changed to the deeper requirements of packaging safety. With the gradual improvement of laws and regulations, FMCG enterprises have gradually increased their safety control over their products, and the requirements for hygienic and functional safety of packaging materials have been stricter and stricter, and the scope of protection for packaging materials has also been gradually expanded. Many customers have asked packaging data producers to provide proof of biological safety and chemical stability of packaging materials issued by authoritative departments, especially for the use of inks and adhesives. In addition, there are many restrictions on the production environment of packaging materials. For example, since the PVC decomposed monomers are harmful to human body, the commonly used PVC medicine blister packaging is being phased out. Some foreign companies even require packaging data providers to provide information on human sensitivity testing and other items. Trend three production efficiency New types of new products and new packaging equipment have been presented from time to time, as technology continues to progress. But in general, the degree of production concentration and automation of FMCG enterprises are improving from time to time, and packaging equipment is developing towards large-scale, rapid, efficient and automation. Packaging materials production enterprises must keep pace with the development of forms, strive to improve the adaptability of packaging materials, and constantly develop information that ensures higher production efficiency in practical applications. The packaging of some sensitive products such as chocolate and ice cream, for example. Low temperature fast sealing packaging materials are gradually replacing the conservative hot pressing packaging materials. The difference between them is that the special glue is used to replace the thermal seal layer to coat the substrate surface and then press the seal at room temperature. Due to the reduction of the time of heat transfer, the speed of sealing is greatly improved. Under normal circumstances, the speed is 10 times the speed of hot pressing material. At the same time, the odor that may be caused by heating data is eliminated. Trend four intelligent function Some aggressive packaging forms and packaging materials can no longer meet the ever-changing market demand and the increasingly complex demand for circulation protection today. The realization of packaging data needs to change from static to dynamic. New concept packaging data and packaging technology are coming or coming. Functional and intelligent packaging and materials will be an important research and development direction for packaging enterprises. There are many functional packaging and intelligent packaging and information that has been presented. For example, some children's protective packaging, anti-theft packaging, heat sensitive and pressure sensitive packaging materials, Japan has recently developed a package that can quickly reduce the temperature of food after microwave heating. In addition, there are also fresh packaging for adding antioxidants into packaging materials. Of course, many functional and intelligent packaging data and packaging technology still face many new problems to solve and the technical difficulties to be tackled, but the potential market demand is still very large. Trend five: structural form is novel. The difference between similar products is gradually decreasing, and as competition level intensifies. The homogeneity of brand use value is gradually increasing, and the sales volume of products is more and more dependent on terminal display. For enterprises, what kind of products can attract consumers and what kind of products can be bought by consumers when they have the same performance price ratio? These allow enterprises to put forward higher requirements for terminal layout of similar products, which directly causes enterprises to make a lot of effort in product packaging, requiring packaging to highlight the difference between their products and other products, which is a good development direction for packaging enterprises. Packaging with a new form and structure is also a kind of market segmentation, which may be a good development opportunity for an enterprise. At present, there is a simple upright flat bottomed plastic bag. In order to ensure smooth placement on the shelf and the main display surface is neat, various manufacturers have developed several patented bags of structure, and some packaging markets such as tea have taken up a large share.

I believe that many people are very worried about the discoloration of plastic EVA tool kits. So what causes the tool kits to fade? The discoloration of plastic colored products is related to the light resistance, oxygen resistance, heat resistance, acid and alkali resistance of the pigments and dyes, and the characteristics of the resin used. Let us briefly analyze the following: 1. The fading of acid- and alkali-resistant colored plastic products is related to the chemical resistance of the colorant (acid-alkali resistance, oxidation-reduction resistance). For example, molybdenum chromium red is resistant to dilute acids, but sensitive to alkalis, and cadmium yellow is not resistant to acids. These two pigments and phenolic resins have a strong reducing effect on some colorants, which seriously affects the heat resistance and weather resistance of the colorants and discoloration occurs. 2. Oxidation resistance Some organic pigments gradually degrade after being degraded by macromolecules or other changes after oxidation. This process is one of high temperature oxidation during processing, and the other is oxidation in the presence of strong oxidants (such as chromate in chrome yellow). After the use of lakes, azo pigments and chrome yellow, the red will gradually decrease. 3. The thermal stability of the heat-resistant pigment refers to the degree of thermal weight loss, discoloration and discoloration of the pigment at the processing temperature. The composition of inorganic pigments is metal oxides and salts with good thermal stability and high heat resistance. The pigments of organic compounds undergo molecular structure changes and a small amount of decomposition at a certain temperature. Especially for PP, PA, PET products, the processing temperature is above 280 ° C. On the one hand, when choosing colorants, we must pay attention to the heat resistance of the pigment, on the other hand, we must consider the heat resistance time of the pigment. Generally, the heat resistance time is 4-10rain. . 4. Lightfastness of lightfast colorants directly affects the fading of products. For outdoor products exposed to strong light, the light resistance (lightfastness) level of the colorant used is an important indicator. The light resistance level is poor, and the product will fade quickly in use. The weather resistance products should be selected not less than six, light grades seven and eight, indoor products can choose four or five. The light resistance of the carrier resin also has a large effect on the change of color, and the molecular structure of the resin caused by ultraviolet radiation changes and fades. Adding light stabilizers such as ultraviolet absorbers to the masterbatch can improve the light resistance of colorants and colored plastic products.