Hangzhou Banglin Bonding Technology Co., Ltd. was established in 2005 which is a national high-tech and specialized enterprise. Located in Hangzhou Future Science Industrial Park. Our company's self-invented and produced hot-melt adhesive products are widely used in various industries, including shoes and bags, automotive batteries, automotive interiors, food packaging, adhesive tapes, labels, tapes, medical supplies, household daily necessities, logistics and express delivery, etc.
Why Choose Us
High Quality
Our Hangzhou factory serves more than 3800 customers, covering 23 provinces and 343 cities. The products are exported to Southeast Asia, the Middle East, South America and other countires. We have a comprehensive management system for product research and development, quality control, safety production,employee service, and after-sales service .
Rich Experience
The company has successively introduced digital management software such as SAP workshop integration software MES, CRM, cloud barcode and Yida digital platform to assist the enterprise in building a strategic management system.
Professional Team
The company has established a technical team with professional application research and development capabilities. The R&D center covers an area of more than 500 square meters, importing the most advanced R&D testing instrument from the United States-- Rheometer. Meanwhile we also hire senior expertes with PhDs in the United States to provide coporate training and guidance.
Certificate
Our hot melt adhesive has successfully passed the ISO 9001 quality management system certification, which means that the production process and quality management have reached the internationally recognized high standards, and it is able to provide customers with stable and high-quality products. At the same time, it has also obtained the REACH and SGS certification. These certifications indicate that the chemical substances in the hot melt adhesive comply with the strict regulatory requirements of the European Union, effectively guaranteeing the health of users and environmental safety, and fully demonstrating our high emphasis on environmental protection and firm commitment to sustainable development.
Bubble Mailer Bag Hot Melt Adhesive
Express bag hot melt adhesive is a yellow hot glue, which is mainly used in express bags, bubble bags, takeaway insulation bags, aluminum foil insulation bags, paper envelope bags, etc.
Paper Envelope Hot Melt Adhesive
Paper envelope hot melt adhesive is an adhesive specifically used to bond paper envelopes to ensure a strong and reliable seal, which is essential for mailing, packaging and document handling.
Takeaway Insulated Bag Hot Melt Adhesive
Takeaway insulated bag hot melt adhesive is a yellow hot glue, which is mainly used in express bags, bubble bags, takeaway insulation bags, aluminum foil insulation bags, envelope bags, etc.
PE/PET Transparent Bag Sealing Hot Melt Adhesive
Courier bag hot melt adhesive is a yellow hot glue, which is mainly used in express bags, bubble bags, takeaway insulation bags, aluminum foil insulation bags, envelope bags, etc.
Our hot melt adhesive for courier bags is known for its excellent bond strength, fast cure time and resistance to environmental factors such as heat and humidity.
Hot melt adhesives are widely used for bag sealing due to their strong adhesion, fast setting time and versatility. These adhesives are ideal for sealing various types of bags such as plastic bags, paper bags or fabric bags for use in industries such as packaging, food and retail.
Hot Melt Adhesive For Plastic Poly Bag
Hot melt adhesives for plastic bags are commonly used in applications such as packaging, sealing and labeling.
Bubble Mailing Bag Industrial Adhesive Glue
The industrial adhesive glue used to manufacture bubble mailers must provide a secure seal, be durable during shipping, and provide good performance in a variety of conditions.
Self Seal Aluminum Foil Insulation Bag Sbc Hot Melt Adhesive
The self seal aluminum foil insulation bag sbc hot melt adhesive is an adhesive used in the production of thermal bag.
It is an application type of hot melt adhesive.
Thermal Bag Hot Melt Adhesive, or HMAs, are fully solid adhesives based on thermoplastic polymers. When heated to its softening point, usually somewhere between 80 °C and 150 °C, a hot melt adhesive becomes a liquid that can be applied to a substrate. The HMA flows across the substrate's surface filling gaps and forming a bond as it cools and sets. While some HMAs remain tacky after they cool (known as pressure-sensitive adhesives, or PSAs), most form strong, solid bonds between surfaces until they are heated again.
Thermal Bag Hot Melt Adhesive are so named because of the way they are used and applied – pellets or sticks of solid adhesive are heated in a dispensing apparatus and then applied to substrates in a molten liquid form. They can be applied directly with handheld guns, automated dispensers or sprays. HMAs are made of a thermoplastic resin that forms bonds as pressure is applied and it cools.
Benefits of Thermal Bag Hot Melt Adhesive
Increased production value
Optimised to enhance manufacturing productivity, hot melts are thermally stable, ensuring minimal charring and reduced nozzle blockages – helping to boost production uptime. They are easy to set up, provide consistent application, reduce material waste, and are ideally suited for high volume production.
Safety and Health
Elimination of volatile organic compounds (VOCs) is a key safety benefit of using 100% solid Thermal Bag Hot Melt Adhesive. Unlike solvent-based glues HMAs do not produce harmful vapours that can potentially irritate skin, eyes and lungs - and do not, therefore, necessitate investment in expensive extractor equipment. Disposal of HMAs has few or no environmental precautions.
Sustainability
Hot melts can be formulated using a high percentage of raw materials from plants and other forestry materials – most often plant resins or rubbers – which helps businesses to reduce their carbon footprint. HMAs can also be customised for environmentally friendly applications: alkali washable labelling adhesives, vegan-friendly glues, or adhesives for pallet stabilisation, being recent examples.
Versatility
Operating successfully on slow and fast machines, and during all seasons, Thermal Bag Hot Melt Adhesive are easy to store, handle and are suitable for a variety of applications, with one HMA often suitable for several jobs – helping to reduce inventory.
Types of Thermal Bag Hot Melt Adhesive
EVA (Ethylene Vinyl Acetate)
EVA is one of the original polymer bases used in standard in packaging and industrial Thermal Bag Hot Melt Adhesive. It still produces very competitive and very high performing packaging Thermal Bag Hot Melt Adhesive today. This base offers one of the widest range of performance across virtually every current application and is the best and/or main option for many applications.. It works in both low application temperature and traditional application temperature Thermal Bag Hot Melt Adhesive.
Polyethylene
These polymer bases work well for most case, carton and tray sealing applications. Polyethylene polymer based adhesives provide low odor, light color, and often release easy from metal for easy clean up if it gets on your equipment. It is not ideal for difficult to bond substrates and is only used at traditional application temperatures.
Metallocene
Metallocene polymers were introduced in the 90's. Combining these polymer bases with other premium components offered much greater stability while heated for application and provided storage temperature strength under very cold and hot conditions. This disruptive jump in reducing char and breakdown from heat exposure while expanding heat and cold bond performance made them the fastest growing polymer base since then. There are many variants of premium no char performance hot melts offered today. Evans recommends identifying which level of performance is needed rather than using the polymer metallocene as a designation of a hot melt type with low/no char performance. Some offerings marketed today may have some of this polymer in the adhesive but there are many variants with a wide range of price points, stability, and bond performance not equivalent to the originally introduced products.
APAO (Amorphous Poly Alpha Olefins)
APAO adhesives are best used where long open/working time or adhesion to plastics is desired . These adhesives offer a soft, tacky and flexible texture, making them an excellent choice for product assembly including adding foam protection to corrugated packaging and bonding plastic corrugated containers.
Polyamides
These adhesive excel where for very high temperature resistance, oil and solvent resistance, or quick assembly strength is desired. This makes them an excellent choice for filter, wood, and other high performance assembly applications. These adhesives require high application temperatures typically around 400F and do not have as much stability under heat as the other types of adhesives.
Hot glues typically consist of five main ingredients: polymers, plasticizers, resins, waxes/oils, and antioxidants - all of which have a role to play but must be fully compatible with one another for the glue to work as intended.
Polymers
Seen as the backbone of the formulation, polymers provide the strength and flexibility that is essential to the performance of glue. Different types of polymers are often used, typically these include ethylene vinyl acetate (EVA), thermoplastic rubber, metallocene (mPO) and amorphous poly alpha olefin (APAO). EVAs, known for their versatility and compatibility to many types of waxes and oils, and metallocenes, ideal for advanced bonding where improved precision, mileage and temperature performance is required, are the most commonly used in modern hot melts.
Resins
Imparting tack is the main function of resins, allowing the adhesive to form the initial bond between substrates, due to the resin having a softening point above room temperature. Tackifying resins also influence many important characteristics of glue: its stability, color, odor, and heat resistance are all affected by the amount, type and compatibility of resin used in the formula.
Plasticizers
Acting as a second base polymer, plasticizers can be added to formulations to compensate for base resins that are too hard, providing the adhesive with greater flexibility and workability. Ultimately, this improves wetting and reduces the melt viscosity of the glue.
Waxes/oils
Paraffin, micro and synthetics are common types of waxes and oils that are used as diluents within formulations. They help to control the open time (amount of time it takes to form a bond) and setting speed (how quickly a bond of acceptable strength forms) of adhesives; characteristics which should be tailored to the exact requirements of production. Waxes and oils also influence heat resistance and decrease viscosity.
Antioxidants
Small amounts of antioxidants are added to formulations to support thermal stability, to protect hot melts from degradation during their shelf life and application, which can occur if glues are kept at elevated temperatures for too long. Antioxidants do not influence the physical or adhesive properties of hot melts.
Carton and Case Sealing - Carton and case sealing is a major application area for HMAs. EVA is frequently used for this application because of its excellent adhesion on paper and cardboard, ease of application and low cost. Additives can alter the properties of EVA for use in extreme cold temperatures sometimes needed for beverage cases (down to -40F), as well as for higher temperature ranges (up to 150F).
Paper-goods - Everything from paper cups to bags to spiral wound tubing, can be adhered with HMA adhesives. EVAs are also a common choice due to ease of use in high throughput assembly lines. Specialty formulations for products expected to reach high temperatures may be needed.
Plastic container bonding - HMAs can also be used in plastic containers. Polyolefin-based HMAs like HMPUR and polyester offer improved bonding to these low-energy surfaces. Care must be taken that the application temperature is low enough not to affect the substrate, so low-temperature HMAs are often used.
Labeling - Labeling on all types of containers can be achieved quickly and economically with HMAs. Depending on the substrate (glass, metal plastic, etc.) and environmental conditions, different types of HMA may be used.
Dispensing of HMAs is as varied as the types of HMA available. Manual application is an option for smaller throughput operations. In these cases, glue sticks and guns that melt solid HMA on demand are available. Larger apparatus can be used that have a reservoir which will accept bulk adhesive in the form of pellets or draws from a larger, external tank.
Thermal Bag Hot Melt Adhesive Housekeeping
Applying Thermal Bag Hot Melt Adhesive at the right temperature, and pressure, in the right quantities, and with the right level of compression will help to deliver an effective adhesive bond. The guidelines below, offer an outline to help troubleshoot some of the most common issues found while using Thermal Bag Hot Melt Adhesive.
Hot melt tank
Applying adhesive at the right temperature prevents the hot melt from oxidising and burning, if the heat is too high, or alternatively, stringing and running poorly if the temperature is too low.
Applicator
Getting the application temperature right prevents excess adhesive from being applied, if the glue is too hot, or from experiencing poor jetting and an inconsistent adhesive application if it's too low.
Pressure
If pump pressure is too low, the flow of the adhesive will be severely restricted and, ultimately, could starve the glue nozzles. If pressure is too high, it may splash, overfire and use an excess of adhesive, not only affecting the efficiency of the process but also presenting a hazard.
Substrate materials
Substrate temperatures above 15°C (60°F) and below 35°C (95°F) generally give the best results. When a hot melt is in contact with a cold surface, its temperature rapidly falls, creating a sharper setting speed and consequent wetting difficulties that can lead to defective gluing.
Working of Thermal Bag Hot Melt Adhesive
The hot melt adhesive is applied from the melt, gaining strength upon solidification and crystallization. Although certain types of Thermal Bag Hot Melt Adhesive can crosslink over time or with an outside energy source, general-purpose Thermal Bag Hot Melt Adhesive remain thermoplastic after application and gelling.
Step 1: A hot melt adhesive when heated, melts and becomes a liquid. It is then applied by bringing it between two substrates. Once cooled, it will set and solidify. The cooling of the drop largely depends on the size of the droplet, nature, and temperature of the substrate. In case the substrate is not insulated, it may take a lot of time for the hot melt to cool down.
For example; if the hot melt is applied on a cold surface, the hot melt would cool faster, but the adhesion imparted would be weak as the adhesive will not get enough time to fill in the cavities of the substrate. On the contrary, if the hot melt was applied on a pre heated surface and then allowed to cool gradually along with the substrate, the adhesion would be stronger.
Step 2: The second substrate is applied to the adhesive, in order to join the two substrates with the help of hot melt applied between them.
Step 3: The second substrate is pressed, and one can see the adhesive oozing out, in case the contact surface with the substrate is large. The large surface area of the substrate allows for quicker cooling of the hot melt. This hot melt after cooling sets, making it impossible to separate the two substrates.
Hangzhou Banglin Bonding Technology Co., Ltd. was established in 2005 which is a national high-tech and specialized enterprise. Located in Hangzhou Future Science Industrial Park. Our company's self-invented and produced hot-melt adhesive products are widely used in various industries, including shoes and bags, automotive batteries, automotive interiors, food packaging, adhesive tapes, labels, tapes, medical supplies, household daily necessities, logistics and express delivery, etc.
Certificate
FAQ
