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At the core of this formulation is an advanced dual-curing mechanism. Upon application, the adhesive provides an immediate thermal tack that holds substrates firmly in place. Following this, a deeper moisture cross-linking process occurs, reacting with ambient humidity to form irreversible polyurethane chemical bonds. This structural transformation delivers an exceptional peel strength of ≥8N/25mm for fabrics, leather, and non-wovens. Once fully cured, the adhesive layer becomes a permanent part of the textile matrix, ensuring firm, non-delaminating adhesion even under severe external mechanical forces or stretching.
Backed by a modernized production facility and a dedicated polymer laboratory, FLEX Machinery Co., Ltd. delivers more than just adhesives. We offer end-to-end formula technical support tailored to specific production lines. Whether you are operating wood-bonding flat lamination, wood edge sealing, wood wrapping, or specialized textile lamination, our engineering team provides targeted solutions. Our robust daily production capacity ensures uninterrupted supply, while our in-house testing center rigorously verifies every batch for consistency in viscosity and melting behavior.
Textiles bonded with this PUR adhesive withstand the harshest cleaning protocols, enduring over 50 cycles of 40–60℃ machine washing without compromising structural integrity. The cross-linked polymer network performs stably across extreme environments, ranging from a freezing -30℃ up to a scorching 120℃. This remarkable thermal stability keeps bonded textiles completely intact, preventing any deformation, discoloration, or adhesion loss, making it highly reliable for garments exposed to intensive laundering.
Formulated as a 100% solid compound, this adhesive melts into a clear, practically odorless fluid, eliminating the hazardous fumes associated with traditional solvent-based glues. It guarantees zero harmful VOC emissions (VOCs <5g/L), creating a safer factory environment for operators. Furthermore, it strictly meets the OEKO-TEX® Standard 100 Class I requirements, providing authoritative safety backing for sensitive applications such as intimate apparel, baby clothing, and sterile medical textiles.
Unlike rigid adhesives that compromise fabric texture, this flexible PUR formula preserves the textiles’ original soft, pliable handfeel without hardening the bonded seams. It is highly adaptable to various application methods, supporting rolling, spraying, and dot coating. By achieving initial tack in just 10 seconds, it significantly boosts continuous production efficiency. Additionally, compared to water-based alternatives, this PUR adhesive requires a much lower coating weight per square meter, directly reducing material consumption while simultaneously increasing production yield and minimizing after-sales rework costs.
End-product durability is critical for brand reputation. This adhesive is engineered to resist UV degradation, oxidation, and hydrolysis. Through accelerated aging laboratory tests, it has been proven to maintain stable bonding performance for over 5 years. This exceptional longevity lowers after-sales risks for manufacturers and significantly enhances the market competitiveness of the finished textile goods.
| Product Parameter | ||
| 1 | Product name | PUR Hot Melt Adhesive- for Textile Industry |
| 2 | Application | Textile Industry |
| 3 | Ingredient | MDI, polyester resin, polyether polyol |
| 4 | Appearance | white solid block |
| 5 | Properties | Low & high temperature resistance, oil & ink erosion resistance, excellent adhesion, good flexibility and thermostability. |
| 6 | Viscosity | Reliable adhesion to fabrics, leather, and related textile materials, while retaining the substrate’s inherent soft handfeel and flexibility. |
| 7 | Applicable machine temperature | 110℃-130℃, adjustable according to substrates, ambient temperature and machine speed |
| 8 | Packing | 2KG-20KG-200KG |
| 9 | Application | 1) The combination of functional fabrics such as windproof jackets with lining fabric and inner lining 2) The bonding of lining fabric for suits and shirts with the fabric 3) The fixation of bag fabrics with linings and hardware accessories, etc. |
This adhesive is ideal for bonding functional waterproof fabrics, dense fleece linings, and tension-heavy elastic bands. When working with specialized TPU or PTFE breathable membranes, utilizing a customized dot-coating method ensures that the fabric's microscopic pores remain unblocked. This perfectly balances high peel strength with optimal breathability. Its exceptional wash resistance and wide temperature adaptability ensure absolutely no delamination after repeated outdoor use, heavy rain exposure, and frequent machine cleaning, perfectly matching the rigorous durability demands of high-performance sports apparel.
Highly suitable for laminating heavy-duty curtains, premium sofa covers, and daily bed linens. The adhesive penetrates the fibers just enough to secure the bond while retaining the fabrics’ inherent softness without stiffening the drape. Its advanced aging resistance prevents the polymer from becoming brittle or yellowing, avoiding bonding failure even after long-term, direct sunlight exposure or frequent household washing.
Safety and comfort are paramount for garments worn close to the skin. Because it complies strictly with OEKO-TEX® Standard 100 Class I, this adhesive is entirely safe for seamless underwear, baby rompers, and feeding bibs. It bonds delicate, stretchable fabrics gently without causing any chemical irritation to sensitive skin, while maintaining the necessary elasticity and flexibility for comfortable, all-day wearing.
Perfect for manufacturing disposable surgical gowns, absorbent wound dressings, and fluid-resistant medical bed sheets. Its solvent-free formulation completely avoids harmful VOC emissions, safeguarding both patients and healthcare workers. Moreover, its robust chemical adhesion withstands various rigorous sterilization processes, ensuring reliable structural performance in critical medical environments.
Begin by powering on the lamination equipment and setting the heating tank temperature to the optimal range of 120–140℃ (strictly follow the specific adhesive technical specs for your machine). Wait approximately 15 minutes for the temperature to stabilize, ensuring the white solid blocks melt into a consistent, bubble-free liquid. Confirm there is no abnormal grinding noise from the motors or leakage from the valves. Carefully check the fabric material and wipe the coating roller clean to avoid any dust or impurities that could negatively affect the final bonding effect.
Load the solid PUR adhesive sticks or blocks into the hopper, ensuring a continuous and smooth feeding process to prevent dry running. Select the appropriate application mode—rolling, spraying, or dot coating—based on the specific textile type and required breathability. Adjust the coating machine speed to a steady 3–5m/min to achieve a uniform adhesive film thickness. For optimal balance between strength and flexibility, a thickness of 0.1–0.2mm is highly recommended.
Laminate the fabric layers immediately after the adhesive coating is applied to capitalize on the initial thermal tack. Apply a firm, even pressure of 0.2–0.3MPa using the nip rollers for 10–20 seconds. Once bonded, place the textiles in a well-ventilated staging area maintained at 20–25℃ with 50–60% ambient humidity. Allow a full 24 hours for the moisture-curing process to complete the chemical cross-linking. Strictly avoid water washing, high-temperature ironing, or excessive stretching during this critical curing window.
Upon completing the production run, turn off the power and immediately clean any residual adhesive in the hopper and on the applicator roller using a professional, compatible cleaning agent before the glue cures. Store any unused, unsealed adhesive in a sealed, dry environment to prevent premature moisture absorption. For any operational troubleshooting, refer directly to the equipment manual or contact our technical support team for prompt guidance.
A: Yes. FLEX Machinery Co., Ltd. not only supplies customers with high-quality and cost-effective machines, but also offers a comprehensive range of services according to the customer's specific production needs. This includes adhesive formula technical support, full-process production guidance, and overseas machine installation and commissioning services. Furthermore, we support flexible OEM services and can customize the PUR formulation (adjusting MDI/polyol ratios) to match your special fabric materials, specific processing environments, and equipment speeds.
A: To achieve the maximum structural bond strength, cure the laminated textiles at 20–25℃ with an ambient humidity of 50–60% for a full 24h. Ensure good ventilation in the storage area, as the adhesive relies on moisture in the air to cross-link. Avoid any direct water contact, high-temperature processing, or physical stress during this period to guarantee a stable and irreversible bonding effect.
A: It works exceptionally well with most standard fabrics like cotton, polyester, genuine and synthetic leather, and various non-wovens. However, for special coated textiles (such as fabrics with heavy silicone or Teflon treatments), we strongly recommend testing compatibility and peel strength with a small sample in our laboratory before proceeding with mass application.
A: Store the adhesive in a sealed, dry, and cool place below 25℃, strictly away from ambient moisture and direct sunlight. Unsealed adhesive should be used up within 48h to prevent unwanted moisture absorption and premature curing failure in the hopper. To support different production scales and ensure stable shelf-life management, we provide professional moisture-proof sealed packaging ranging from 2KG foil bags to 20KG pails and 200KG steel drums, backed by an efficient global supply chain.
A: No. Its specially engineered flexible formula maintains the original soft, pliable handfeel of the fabrics even after full curing. Unlike traditional glues that can create a rigid layer, this PUR adhesive moves naturally with the textile, without causing any stiffness, cracking, or hardening at the bonded areas.
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