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About Us

Jiangsu Adhesive Package International Co., Ltd.

JAPI is a high-tech enterprise committed to the development and production of two-component products, including mixing tubes and related items.Our comprehensive range of products finds widespread application across various sectors, including home improvement building materials, electronic adhesives, spraying, and automobile sealing.we focus on market demands and continuous development. We look forward to building long-term, mutually beneficial partnerships worldwide.

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HIGH QUALITY

Trust Seal, Credit Check, RoSH and Supplier Capability Assessment. company has strictly quality control system and professional test lab.

DEVELOPMENT

Internal professional design team and advanced machinery workshop. We can cooperate to develop the products you need.

MANUFACTURING

Advanced automatic machines, strictly process control system. We can manufacture all the Electrical terminals beyond your demand.

100% SERVICE

Bulk and customized small packaging, FOB, CIF, DDU and DDP. Let us help you find the best solution for all your concerns.

Stability and dimensional accuracy of the mixing tube structure: Avoiding dispensing deviation and process failure

Stability and dimensional accuracy of the mixing tube structure: Avoiding dispensing deviation and process failure The structural stability and dimensional accuracy of the mixing tube directly affect the dispensing positioning accuracy and assembly compatibility: Structural stability of the blade: If the internal blades of the mixing tube are not firmly fixed and prone to loosening, during high-pressure dispensing, the blades may shift or break, disrupting the "separation - convergence" mixing process and causing a significant drop in mixing effect; high-quality mixing tubes are produced through an integrated injection molding process, ensuring a tight connection between the blades and the tube body, which can withstand 0.8-1.2 MPa of dispensing pressure without deformation. Interface dimensional accuracy: The dimensional deviation of the interface between the mixing tube and the dispensing valve, needle, etc. (such as the outer diameter tolerance exceeding ±0.1mm) will cause leakage at the connection point, which not only leads to waste of glue but also contaminates the surface of the workpiece, increasing the subsequent cleaning costs; high-precision interface design (such as using ISO standard interfaces) can achieve seamless connection, eliminating the problem of leakage. Control of mixing tube residue: Reducing cost loss and process contamination risks The performance of the glue residue of the mixing tube directly affects the production cost and the cleanliness of the process during glue replacement: The impact of excessive residue: Ordinary mixing tubes due to insufficient smoothness of the tube wall and excessive blade gap, will result in 5%-10% of glue remaining in the tube, for high-value glues (such as conductive silver glue used in semiconductor packaging), it will cause significant cost waste; at the same time, if the residual glue is not thoroughly cleaned, when changing different types of glues, it will cause cross-contamination of new and old glues, affecting the dispensing quality. Advantages of low-residue design: Using inner wall polishing treatment and optimized blade gap, low-residue mixing tubes can control the glue residue to be below 2%, not only reducing material loss but also reducing the cleaning steps during glue replacement, improving production efficiency, especially suitable for multi-variety and small-batch dispensing scenarios.

2025-11-26

The Material Mystery of Adhesive Cartridges: PP vs. PBT-3

PBT - The High - Performance Contender for Adhesive Cartridges Exceptional Mechanical and Thermal Properties PBT, or Polybutylene Terephthalate, is a semi - crystalline thermoplastic polyester with a set of properties that make it a preferred choice for certain adhesive cartridge applications. One of the most notable features of PBT is its high mechanical strength. It has a relatively high tensile strength, which allows adhesive cartridges made of PBT to withstand significant internal pressure from the adhesive or sealant inside. This is particularly important in applications where the cartridge needs to hold a large volume of viscous materials, such as in industrial - scale dispensing operations. Moreover, PBT exhibits excellent dimensional stability. Even under varying environmental conditions, PBT - made adhesive cartridges maintain their shape and size accurately. This is crucial as it ensures a consistent fit with dispensing equipment and prevents any leakage or improper dispensing of the adhesive. For example, in a two - component cartridge (dual cartridge), the precise dimensions of the PBT cartridge are essential to ensure proper mixing and dispensing of the two components. PBT also has good heat - aging resistance. It can retain its mechanical properties even when exposed to elevated temperatures for extended periods. This property makes PBT - based adhesive cartridges suitable for applications where the cartridges may be stored or used in high - temperature environments, such as in some automotive manufacturing processes or in industrial settings with hot working conditions. In contrast to PP, which may soften or deform at relatively lower temperatures, PBT can maintain its integrity, ensuring the safe storage and delivery of adhesives like epoxy cartridges that are often used in high - temperature - resistant bonding applications. Chemical Resistance and Moisture Sensitivity PBT shows remarkable chemical resistance to a wide range of solvents and chemicals. It can resist the corrosive effects of many organic solvents, acids, and alkalis, which is similar to PP. This property is vital for adhesive cartridges as it ensures that the cartridge material does not react with the adhesive or sealant, preserving the quality and performance of the product inside. For instance, in the case of a silicone sealant cartridge made of PBT, the cartridge can safely store the silicone sealant without any chemical degradation, maintaining the sealant's adhesion and flexibility properties over time. However, PBT has a notable drawback in terms of its moisture sensitivity. PBT is hygroscopic, meaning it can absorb moisture from the environment. When PBT absorbs moisture, it can undergo hydrolysis, which may lead to the degradation of its mechanical properties and the integrity of the adhesive cartridge. This moisture - induced degradation can also affect the quality of the adhesive or sealant inside, especially if the adhesive is sensitive to moisture. For example, in some epoxy - based adhesives, even a small amount of moisture can cause premature curing or affect the final bond strength. Therefore, in applications where the adhesive cartridge will be stored or used in humid environments, proper moisture - barrier packaging or additional protective measures may be required when using PBT - made cartridges. Niche Applications Leveraging PBT's Strengths PBT - made adhesive cartridges find their niche in applications that demand high - performance and reliability. In the case of two - component cartridges, especially those used for high - strength epoxy adhesives (epoxy cartridges), PBT is often preferred. The high mechanical strength and dimensional stability of PBT ensure that the two components of the adhesive are separated effectively within the cartridge and are dispensed accurately when required. The ability of PBT to withstand the chemical nature of epoxy resins and hardeners, along with its heat - aging resistance, makes it suitable for applications where the epoxy adhesive will be used in demanding environments, such as in aerospace or high - end electronics manufacturing. For applications where the adhesive needs to be dispensed with extreme precision, such as in micro - electronics or medical device assembly, PBT - made disposable cartridges can be an ideal choice. The precise manufacturing capabilities of PBT, due to its dimensional stability, allow for the production of cartridges with very accurate internal volumes and dispensing orifices. This precision is crucial in these industries to ensure the correct amount of adhesive is applied, minimizing waste and ensuring the quality and functionality of the final product. Although PBT is generally more expensive than PP, the added value it brings in terms of performance and precision makes it a justifiable choice in these high - end and critical applications.

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