Envelope Closing
Tape Adhesives
Smart adhesives for envelope closing tapes
Fortunately, Bostik's envelope closing tape adhesives, based on Hot Melt Pressure Sensitive Adhesive (HMPSA), make it easy. Our solutions, ideal for courier bags, poly mailers, paper mailers and padded mailers, offer:
- Good adhesion and cohesion across a variety of substrates, including low surface energy, such as LPDE and PE, as well as recycled materials to keep the package securely sealed
- High and low temperature resistance as well as no oil migration, bleeding and staining on LDPE bags especially to ensure protect safety during transit and storage
- Fast set speeds in less than 10 seconds to streamline operations and maintain high output volumes
- TMLI-approved recyclable and repulpable options as well as compostable, biodegradable and bio-based solutions to reduce landfill waste
Featured product: Thermogrip® 4185
Frequently Asked Questions about Envelope Closing Tape Adhesives
What are the request for tapes or adhesive for envelope closing?
Consumer spending in e-commerce has increased year over year. There is an increased need for package security. Customers want to protect their packaging against product theft or keep products. Indeed, as more items are being ordered online, heightened security may be needed for items like confidential documents. To keep shipping costs low, several producers have turned to packing solutions such as envelopes and bags. Manufacturers are looking for ways to automate to keep up with demand.
Therefore, choosing the correct adhesive for your envelope closing tapes is critical if you want to achieve strong performance and meet the demands of both basic packaging and application that is more complicated. Tape adhesive should have a good adhesion and cohesion across a variety of substrates to ensure the package security in different environment and enable automated manufacturing and ease of use for the end user to open
What adhesives are suitable for envelope sealing tape?
Hot Melt Pressure Sensitive Adhesive (HMPSA) are ideal for ecommerce envelope closing tapes. They are designed to meet the general requirements necessary for this application by offering:
- Versatility: HMPSAs are compatible with a wide range of substrates (such as LLDPE and LDPE), helping to ensure strong in-use performance and design flexibility as manufacturers try to keep up with changing substrate needs.
- High adhesion: With balanced peel and tack, these solutions are able to provide a strong bond while also being easily removable for the end-user.
- Ease of use: Compatible with many temperatures and application methods and fasting settings (<10s). HMPSAs are easy to integrate with your system.
What is hot melt pressure sensitive adhesive?
Hot melt pressure sensitive adhesives are frequently used as a sealing tape, or as self-adhesive labels. Hot Melt Pressure Sensitive Adhesives (HMPSA) are formulated with three primary raw materials: polymers, resins, and plasticizers. Polymers are the backbone and provide cohesive or internal strength. Resins tackify the polymer, plasticizers enable effective wet-out, and lower the viscosity for coating. Heat and shear is used to blend these materials in specific amounts to achieve the end use properties needed for each application.
You can also find HMPSA in flexible packaging, automotive, or nonwovens applications. This kind of adhesive retains tack which allow them to bond applied pressure ( stay sticky when applied )
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