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What are the usage methods of stretch wrap film   PE stretch film/wrapping film, also known as LLDPE elastic film/packaging film, is a transparent, elastic and strong, non-toxic and harmless soft polyethylene plastic film that meets international environmental protection and hygiene standards. It can be cold-stretched in both longitudinal and transverse directions without heating. Relying on its own self-adhesive property, it can package various products and keep the goods under tension for a long time without loosening It features high strength, great elastic tensile force, and can tightly wrap objects of any shape into a whole. PE stretch film/wrapping film, also known as LLDPE elastic film/packaging film, is a transparent, elastic and strong, non-toxic and harmless soft polyethylene plastic film that meets international environmental protection and hygiene standards. It can be cold-stretched in both longitudinal and transverse directions without heating. Relying on its own self-adhesive property, it can package various products and keep the goods under tension for a long time without loosening It features high strength, great elastic tensile force, and can tightly wrap objects of any shape into a whole. Stretch packaging saves materials compared to shrink packaging and does not require a shrink packaging machine, thus saving energy. It has excellent effects in preventing loosening, rain, dust and theft. It is suitable for pallet transportation packaging or goods pallet packaging, and can prevent moisture, dust, reduce labor, improve efficiency, and achieve the purpose of protecting products and reducing costs. Especially for the operation of pallet packaging and transportation of goods, it fully exploits the strength, toughness and self-adhesiveness of the film, and in combination with the tightening effect of the tension layer by layer during winding, it achieves the best effect of pallet packaging. Also known as LLDPE elastic film/packaging film, it is a transparent, elastic, strong, non-toxic and harmless soft polyethylene plastic film that meets international environmental protection and hygiene standards. It can be cold-stretched in both longitudinal and transverse directions without heating. Relying on its own self-adhesive property, it can package various products and keep the goods under tension for a long time without loosening. It features high strength, great elastic tensile force, and can tightly wrap objects of any shape into a whole. Stretch packaging saves materials compared to shrink packaging and does not require a shrink packaging machine, thus saving energy. It has excellent effects in preventing loosening, rain, dust and theft. It is suitable for pallet transportation packaging or goods pallet packaging, and can prevent moisture, dust, reduce labor, improve efficiency, and achieve the purpose of protecting products and reducing costs. Especially for the operation of pallet packaging and transportation of goods, it fully exploits the strength, toughness and self-adhesiveness of the film, and in combination with the tightening effect of the tension layer by layer during winding, it achieves the best effect of pallet packaging.

Fresh-keeping packaging   American researchers have placed a layer of plastic film containing a chemical substance called Ammosorb in food packaging bags, which can remove oxygen from the packaging and keep the packaged food from spoiling for a long time. This chemical substance remained in a dormant state until it was exposed to special light waves. Chemical reactions only begin to manifest after being exposed to special light waves. This means that when packaging food, there is no need for complex deaeration treatment. It is only necessary to expose it to special light waves in the last process of food packaging.   Russian experts have added dehydrated acidifiers, various mineral salts and enzymes and other substances to the polymers of packaging materials. The surface of packaging bags rich in these substances can absorb the excess moisture in the packaged food, kill bacteria, and thereby improve the internal environment of the packaging bags. Meanwhile, the enzymes in the additives can also regulate the smell of food and create a survival space for the nutrients in the food.   A Japanese chemical industry company has successfully developed an antibacterial plastic packaging material. This antibacterial plastic packaging product is made by mixing synthetic materials such as fibrous plastic and polypropylene with an antibacterial agent used in food films. It can prevent the reproduction of microorganisms and bacteria, prevent the deterioration of the food, cosmetics or drugs it contains, and greatly extend the shelf life.   Modified atmosphere packaging   In recent years, a type of modified atmosphere packaging bag for fruit and vegetable food packaging has emerged in the European market. This kind of high-oxygen spontaneous modified atmosphere packaging bag can adjust the combination ratio of oxygen, carbon dioxide and nitrogen inside the bag according to the physiological characteristics of different fruit and vegetable foods. For example, for perishable fruit and vegetable foods, 80-90% oxygen and 10-20% carbon dioxide can be used. This kind of packaging can inhibit enzyme activity and prevent Browning of fruit and vegetable foods. Prevent fermentation caused by anaerobic respiration and maintain the quality of fruit and vegetable foods; It has the advantages of effectively inhibiting the growth of aerobic and anaerobic microorganisms and preventing rot, etc. Fresh mushrooms packaged in high-oxygen modified packaging bags can have a shelf life of up to 8 days at a temperature of 8℃.   Microwave packaging   The Swedish Sprinter company has produced a flat disc-type microwave packaging. This packaging is made of C-PET material, with PET lining, multi-layer composite and reinforcing ribs pressed out. Food packaged in this way can be directly put into the microwave oven for baking after being taken out of the refrigerator and can withstand a high temperature of 230℃.   Due to the disadvantages of packaging made of composite materials of aluminum foil and certain plastics, such as being opaque, not easy to recycle, and not suitable for microwave processing, the SiOx-coated material developed in recent years can be used as a substitute. SiOX is a layer of silicon oxide coated on substrates such as PET, PA, and PP. This coating features high barrier properties, high microwave permeability, and transparency. It can be used for soft packaging of food during high-temperature cooking and microwave processing, and can also be made into packaging containers for beverages and edible oil.   Heat-resistant packaging   Two companies in Japan have jointly developed a packaging bag that can be used for cooking rice. This bag has two layers. The outer layer is made of highly heat-resistant nylon, and the inner layer is polyethylene film. There is also a water level line printed inside the bag indicating the amount of water to be released per meter. When using it, just put the rice into the bag, add water to the corresponding water level line, then put the bag into the pot and cook for 20 minutes. The rice will be cooked. This kind of packaging is very suitable for use in the wild.   Frozen packaging   A company in San Francisco, the United States, has designed and produced a vacuum-packed food preservation bag, which can effectively prevent food from freezing and deteriorating in the refrigerator. This packaging bag is composed of three layers, one of which is nylon, used to enhance its strength. An air extraction channel is also implanted on the bag wall. This kind of vacuum packaging bag is resistant to freezing, can be heated in a microwave, boiled, washed and resealed. The experimental results show that the food vacuum-packed in this packaging bag has no weight loss, no ice chips on the bag wall, and no obvious discoloration or other deterioration phenomena. The vacuum packaging bag can extend the freezing preservation time of food without deterioration by 3 to 5 times compared with ordinary preservation bags.   France has successfully developed a kind of insulated bag for frozen food suitable for supermarkets. Thus, the problem of the change in flavor of food taken out of the supermarket freezer, thawed and then refrozen has been solved. It is reported that the appearance of this kind of insulated packaging bag is similar to that of plastic and paper bags for supermarket goods. The bag is divided into two layers. The outer layer is made of ordinary plastic or thick paper, and the inner layer is an insulating layer made of nylon fibers. The top of the bag is tightly sealed. This bag has an insulating effect. There are various insulating bags that can keep warm at different temperatures such as 3, 2, 0, -4, and -10 degrees Celsius, as well as insulating bags for long-term use, and their capacities vary.   Convenient packaging   A self-heating packaging has emerged in the UK market. It is a multi-layered, seamless container made by injection molding, with the inner layers divided into multiple compartments, allowing the product to self-heat. Its heating principle is as follows: When the user removes the foil from the container and presses the bottom of the container, the water and limestone inside the container will undergo a chemical reaction, releasing heat energy and thereby heating the product.   The packaging industry in the United States has developed a kind of packaging that can be "Instant Cool". This packaging has a condenser, an evaporation grid and a bag of desiccant made of salt inside. The vapor and liquid produced by catalytic action during cooling will be stored at the bottom of the packaging. It can lower the temperature of the items in the container within a few minutes.

1. Raw and auxiliary materials - raw aluminum foil is the carrier of the adhesive layer, and its quality has a deep impact on the heat sealing strength of the product. On the one hand, the surface oil stains on the original aluminum foil can weaken the adhesion between the adhesive and the original aluminum foil. Reusable Printing Bags，On the other hand, the heat sealing strength is also affected by the insufficient metal composition and surface gloss of the original aluminum foil. So it is necessary to strictly control the quality of the original aluminum foil.       2. Adhesive - Adhesive is a special substance containing a solvent, which is applied to the dark surface of the original aluminum foil under certain process conditions, and then dried in a drying oven to form an adhesive layer, which plays a decisive role in the heat sealing strength of the product.Soft packaging film,Composite bag,printed bags,Flexible packaging bags.       3. Production process - Under certain process parameter control, the adhesive is coated on the surface of the original aluminum foil to form a film, and the quality of the film directly affects the heat sealing strength of the product. One of the more important parameters is the coating speed. If the coating speed is too fast and the drying temperature is too high, it will cause the solvent on the surface of the coating to evaporate too quickly, resulting in residual solvent inside the film. The drying of the coating will not be sufficient, which will affect the heat sealing strength of the product.       4. Heat sealing temperature - Heat sealing temperature is an important factor affecting heat sealing strength. If the temperature is too high, the adhesion between the adhesive layer and the PVC film will not be firm. If the temperature is too high, it will also affect the medication. Therefore, a reasonable heat sealing temperature is generally between 150 ℃ and 160 ℃.       5. Heat sealing pressure - To achieve the desired heat sealing strength, a certain heat sealing pressure needs to be set. If the pressure is insufficient, the adhesive layer of the anti-static aluminum foil bag product cannot be fully bonded to the PVC film for heat sealing, thus failing to achieve a good heat sealing effect. So the national standard stipulates that the pressure for heat sealing is 0.20.2 × 10Pa.       6. Heat sealing time - Heat sealing time can also affect the heat sealing strength. In general, under the same heat sealing temperature and pressure, a longer heat sealing time can make the heat sealing part seal more firmly and perfectly. Can better achieve the expected heat sealing strength. If the heat sealing time is too short, it will result in insufficient heat sealing between the adhesive layer and the PVC film. Therefore, the national standard stipulates a scientific heat sealing time of 1 second.       7. Cooling process - attention should also be paid to the cooling process of anti-static aluminum foil bags after heat sealing. When the newly melted heat sealed weld seam is formed at a lower temperature, the heat sealing strength of the anti-static aluminum foil bag may decrease due to poor cooling, and the appearance of the weld seam may be affected, resulting in product failure. Poor cooling of general anti-static aluminum foil bags may be caused by insufficient heat sealing pressure, poor cooling water circulation, high water temperature, or untimely cooling. Therefore, different packaging materials used in the production of anti-static aluminum foil bags require different heat sealing parameters in actual production. Too professional, I can't understand it! It's okay, Xingchen teaches you 2 tricks to prevent anti-static aluminum foil bags from cracking again.       ① Adjust the heat sealing parameters effectively and reliably based on actual production needs and product packaging performance requirements. It should also be noted that other heat sealing parameters that can meet the standards are different under different heat sealing pressures, times, and temperatures. Adjustments should be made according to the actual situation to ensure the heat sealing strength and quality of anti-static aluminum foil bags.       ② The products that need to be accommodated in anti-static aluminum foil bags can also affect the heat sealing strength of the aluminum foil bags. For example, when packaging fine powder products in aluminum foil bags, it is easy to stick the anti-static aluminum foil bag seal during packaging. At this point, it is necessary to adjust the packaging material and inner layer thickness of the anti-static aluminum foil bag according to the product being packaged, in order to ensure and improve the heat sealing strength of the anti-static aluminum foil bag.    

3D printing, which may sound high-tech and even distant, has quietly entered our lives. It is widely used in many fields such as healthcare, automotive, construction, aerospace, etc. Imagine that with just a click of the mouse, you can transform your creative ideas into tangible 3D entities, which is the charm of 3D printing. It utilizes computer-aided design (CAD) software to generate three-dimensional models and constructs complex and intricate objects by adding materials layer by layer. The magic of 3D printing cannot be separated from the support of high-quality consumables. On the market, there is a dazzling variety of consumables, ranging from common PLA and ABS plastics to high-end metal powders, ceramic materials, and biomaterials, each with its own unique properties and uses.Soft packaging film,printed bags.   However, why are some 3D printed works smooth and perfect, while others have frequent flaws?   Actually, this is largely related to the quality of consumables. All materials are affected to varying degrees by environmental factors such as humidity and temperature. In the process of 3D printing, consumables need to go through complex steps such as high-temperature melting, extrusion, and solidification. If the material contains too high humidity, it can cause problems such as bubbles, uneven melt adhesive, and decreased physical properties (strength, toughness, etc.) on the surface of the printed parts. Therefore, a suitable packaging solution is particularly important. As Xingchen Group, which has been deeply involved in the packaging material market for more than 20 years, we deeply understand the importance of 3D printing consumables packaging. Among various packaging materials, we recommend nylon vacuum bags for everyone. Nylon vacuum bag, also known as vacuum packaging bag or vacuum bag, is a type of nylon coated PE material with strong barrier and vacuum suction capabilities.   ·Strong barrier properties: Nylon vacuum packaging bags have good barrier properties against oxygen, water vapor, odors, etc., protecting consumables from moisture erosion and ensuring stable and reliable printing quality.   ·Puncture resistance: Nylon material has excellent puncture resistance, which can prevent sharp objects from piercing the packaging bag, thereby avoiding leakage or contamination of items inside the packaging. Nylon vacuum packaging bags can effectively resist the compression and collision of other items during warehousing and logistics, protecting the items inside the packaging from damage.   ·Low cost: Compared with glass packaging, aluminum foil packaging, and other plastic packaging, nylon bags have lower costs and better cost-effectiveness while achieving the same barrier effect.   ·Transparent appearance: Nylon vacuum bags are usually mainly transparent, making the vacuum packaged items visible and easy to identify. Users can clearly see the color of 3D printing consumables, making it easy to select and use. It is worth mentioning that the customized service of nylon bags has also added more possibilities for the packaging of 3D printing consumables. Whether it is color, size, or printed brand logo, personalized customization can be carried out according to customer needs, which not only enhances the professional image of the product, but also strengthens the brand recognition. This flexibility and personalization make nylon bags not only protectors of consumables, but also important carriers of brand communication.

Innovation in membrane materials, bonding everything together   Attention all industry procurement experts, technical controllers, and cross-border players! From October 28th to 30th, as a barometer of the global functional film and adhesive tape as well as the coating and die-cutting industry chain, the 2025 Shenzhen International Film and Tape Expo (FILM&TAPE EXPO 2025) will grandly kick off at Hall 10, 12, and 14 of the Shenzhen International Convention and Exhibition Center (Bao'an New Hall).vacuum bag,Composite bag,Flexible packaging bags.We sincerely invite you to visit! This time, we not only showcased the "hardcore data" of 1000+industry exhibitors/brands, 60000+professional buyers, and 3000 international visitors, but also packaged 9 highlights such as "industry integration panoramic show, top ten application blue ocean navigation, international celebrity face-to-face, and one-stop shopping in four exhibition areas" into a "clearance secret": from raw materials to terminals, from laboratories to mass production lines, from domestic internal competition to foreign new continents, in three days, you can "see the entire industry chain in one exhibition, connect with the world in one museum, and complete the customer list in one go". Scan the code now and put your inspiration, orders, and connections all into your pocket!   1. Take a comprehensive view of industrial integration and gain insights into cross-border trends   The exhibition will showcase in depth the production process of functional films and adhesive tape materials throughout the entire industry chain, as well as their cross-border applications in fields such as touch displays, consumer electronics, new energy vehicles, printed labels, die-cutting factories, plastic packaging, lithium batteries, 3C home appliances, semiconductors, PCB/FPC circuit boards, etc. It will visually demonstrate how functional materials empower multi industry upgrading and help visitors gain insight into the trend of industrial integration. Functional Film   Scope of exhibits: BOPET/BOPP/OPP/PET/TPU film, optical film, protective film, release film, polyimide film, polarizer, packaging film, printed composite film, lithium battery film, photovoltaic film, car clothing film, water treatment film, energy-saving window film, electrical film, decorative film, etc. 2. Expand industry connections and connect with global resources   The exhibition gathers over 4000 industry experts and 1000 brand exhibitors, and builds a high-end network through 30+cutting-edge forums, 3000+one-on-one business matching sessions, and international exhibition area supplier cooperation. Upgrade the "Die Cutting Engineer Club" and "Functional Materials Club" to accurately connect with high-quality supplier resources in the industry, and enrich the BOM table library in one stop. 3. Observe the top ten applications and unlock the blue ocean of the market   The exhibition covers popular application scenarios such as consumer electronics, new energy, 3C home appliances, automobiles, lithium batteries, semiconductors, medical, packaging and printing labels, with a focus on showcasing functional film and adhesive tape materials, high-end manufacturing, and innovation in sustainable fields, helping visitors unlock the trillion dollar market blue ocean. 4. Mastering innovative technologies to drive industrial upgrading   Focusing on high-performance materials, intelligent manufacturing equipment, and innovative and breakthrough technologies in raw materials, we offer professional training courses and die-cutting talent competitions in the coating and die-cutting industry to create a platform for industry professionals to exchange ideas, drive industrial upgrading, and help enterprises enhance competitiveness. 5. Explore the blue ocean of the industry and seize market opportunities   Through forums on new energy materials, die-cutting processes, and innovation awards, the exhibition directly targets high growth tracks such as photovoltaic film and lithium battery aluminum-plastic film, analyzes cost reducing technologies such as asynchronous die-cutting, and leads enterprises to seize market opportunities.  

In the fields of electronic manufacturing, medical equipment, precision instruments, etc., static electricity is an invisible "killer" - it can cause damage to components at a mild level, and even lead to fires and explosions at a severe level. As the "guardian" of these sensitive products, anti-static bags bear the responsibility of resisting electrostatic discharge (ESD) damage. However, the performance of this' guardian 'is not absolutely stable, as it is affected by environmental temperature and humidity. plastic film,Soft packaging film,Flexible packaging bags,vacuum bag,Composite bag,printed bags.Today, we will delve into how temperature and humidity affect the performance of anti-static bags.   1、 Temperature factor   Anti static bags are usually made of multi-layer composite materials (such as PE, PET, or metalized films), and temperature directly affects the physical and chemical properties of the materials:   1. High temperature   ·Material softening and deformation: High temperature can lead to increased activity of plastic molecular chains, causing the bag body to become soft, sticky, and even undergo irreversible deformation, reducing sealing and puncture resistance.   ·Decreased static dissipation performance: The stability of some anti-static coatings will weaken at high temperatures, resulting in a significant reduction in static shielding effect.   The high temperature resistance range of anti-static packaging bags varies depending on the type and quality of the material. Generally speaking, anti-static bags made of polyethylene can withstand temperatures below 60 ℃, while anti-static bags made of polyimide material can withstand even higher temperatures, with a range of over 200 ℃. If the temperature exceeds the material's temperature resistance limit, it may lead to the aforementioned performance changes.    2. Low temperature   ·Brittle cracking: Low temperature can make the material brittle, and it is easy to break during handling or transportation, losing its protective function.   ·Coating peeling: The adhesion of metalized coatings may decrease due to low-temperature shrinkage, resulting in localized peeling.   Although the impact of low temperature on anti-static packaging bags is relatively small, it is still necessary to pay attention to the performance changes of packaging bags under extreme low temperature conditions (such as below -40 ℃) to ensure that they can function properly for protection.    3. Temperature recommendations   To ensure the optimal performance of anti-static packaging bags, the storage and use environment temperature should be controlled between 0 ℃ and 40 ℃, avoiding direct sunlight or proximity to heat sources (such as heating and equipment vents). If it needs to be used at extreme temperatures, it is recommended to communicate with the supplier in advance to customize temperature resistant products. 2、 Humidity factor   Humidity is crucial for the generation and dissipation of static electricity, as high or low humidity can affect the performance of anti-static bags   1. Low humidity   ·Accumulation of static electricity intensifies: In dry environments, the surface resistance of materials increases, making static electricity more easily generated and difficult to dissipate. At this point, the static dissipation efficiency of the anti-static bag may not be sufficient to offset the accumulated risk of external static electricity.   ·Dust adsorption problem: Electrostatic adsorption of dust can contaminate the products inside the bag, especially in clean workshops where special attention should be paid.   2. High humidity   ·Moisture absorption and expansion of materials: Some anti-static layers (such as hydrophilic coatings) may experience a decrease in shielding performance due to moisture absorption and expansion.   ·Metal layer oxidation: Metalized films are prone to oxidation and rusting in humid environments, shortening their service life.   3. Humidity suggestion   To ensure optimal performance of anti-static packaging bags, the environmental humidity should be maintained at 30%~70% RH. This can be achieved through the following measures:   ·Use humidifiers or place humidity regulators in dry areas;   ·Equip dehumidifiers or desiccant packs in damp areas;