As the requirements for labeling applications in the packaging, logistics, daily chemical, and industrial product sectors continue to rise, the selection of label adhesives has become increasingly critical. Whether a label adheres securely depends not only on the label facestock and print quality but is also closely tied to the surface of the substrate, the application temperature, the labeling speed, and subsequent usage requirements. To address the diverse range of label materials and application environments, Anhui Sinograce Chemical Co., Ltd. offers a comprehensive portfolio of label adhesive solutions, empowering customers to select the most suitable adhesive products based on their specific operational needs. Adhesive Solutions Tailored to Different Label Facestocks Different label facestocks impose varying requirements regarding adhesive adhesion, coating performance, and labeling stability. Sinograce provides customized water-based pressure-sensitive adhesive (PSA) solutions for a wide array of label materials, including paper, PVC films, PP/PE films, and aluminized films. Water-Based PSAs for Paper Labels Suitable for standard paper labels and certain pressure-sensitive materials, these adhesives meet the application requirements for general product labels, packaging labels, and promotional materials. Adhesives for PVC Film Labels For PVC film labeling applications, Sinograce offers water-based adhesive solutions that strike an optimal balance between initial tack, peel strength, and cohesive strength—making them ideal for applications requiring excellent adhesion to curved surfaces. Water-Based PSAs for PP/PE Film Labels For film label materials such as PP and PE, we can provide tailored water-based PSA solutions—matched to the specific label structure, coating process, and final labeling requirements—for use in a wide variety of film label products. Adhesives for Aluminized PP/PE Film Labels Specifically designed for aluminized film labels and related pressure-sensitive materials, Sinograce offers compatible water-based adhesive products that satisfy the diverse requirements of different film structures and label processing methods. Label Adhesive Solutions for Diverse Operating Environments Beyond the label facestock itself, the operating environment plays a significant role in the selection of label adhesives. For standard room-temperature labeling applications, water-based PSAs are suitable for use across a broad spectrum of daily packaging and labeling scenarios. For applications involving high-speed labeling, requirements for higher initial tack, or specific label processing methods, hot-melt pressure-sensitive adhesives serve as the appropriate solution. For applications involving refrigeration, freezing, outdoor exposure, high-temperature storage, or specific removability requirements, adhesives must be carefully matched and tested in conjunction with actual operating temperatures, substrate materials, label structures, and labe...

Wash-Offhable Label Adhesives constitute a series of water-based acrylic pressure-sensitive adhesives specifically designed for labeling applications on PET bottles and related packaging. They are ideally suited for packaging scenarios where both robust label adhesion and efficient separation during recycling are required. During the PET packaging recycling process, label materials and adhesive residues are among the critical factors that influence the quality of the resulting recycled PET. According to a study published in the *Journal of Hazardous Materials* in 2022, food-contact chemicals present in PET beverage bottles may undergo migration; furthermore, the recycling process itself can potentially lead to the concentration of certain chemicals within the PET value chain—or even introduce new substances—thereby raising concerns regarding the safety and quality stability of the recycled material. Consequently, in the effort to enhance the quality of PET packaging recycling, selecting a label adhesive that is compatible with the specific recycling system is of paramount importance. Compared to multi-layer composite materials, PET bottles typically possess a relatively simple material structure, which renders them more amenable to recycling and reuse. To ensure that PET materials retain a high level of reuse value post-recycling, the adhesive component within the labeling system must—while fulfilling its primary adhesion requirements—simultaneously minimize any adverse impact on subsequent cleaning, sorting, and reprocessing stages. The WM549 Wash-Off Label Adhesive was developed precisely to address this specific need. This product is suitable for labeling applications on PET bottles and trays, enabling PET packaging used in the food, beverage, and daily chemical industries to achieve superior label separation results during the recycling process. Under normal conditions of transport, storage, and usage, this Wash-Off label adhesive maintains excellent adhesion and initial tack, ensuring that labels do not detach easily merely through incidental contact with moisture. Labels detach from the PET substrate surface with ease only under specific recycling cleaning conditions—such as within a specific temperature range and an alkaline pH environment—thereby minimizing the negative impact of label and adhesive residues on the quality of the recycled PET flakes. WM549 features a high solid content and excellent coating adaptability, making it fully compatible with the processing requirements of high-speed coating equipment. Its comprehensive performance profile rivals that of high-performance general-purpose pressure-sensitive adhesives for film labels, while simultaneously fulfilling the specific requirements for wash-off separation mandated by PET packaging recycling systems. By utilizing wash-off, removable pressure-sensitive adhesives, labels made from polyolefin films—such as PE and PP—can be more easily separated from bottles during the PET recy...

Sinograce Chemical has recently completed overseas customer visits in Azerbaijan, Turkey and Russia. The trip focused on customer follow-up, product communication, technical support, and market feedback for coating and industrial material applications. During the visits, the Sinograce team met with customers to discuss product performance, application requirements, sample testing feedback, and future cooperation opportunities. These face-to-face communications helped the company better understand the needs of different markets and provide more suitable product support. For industrial coating and surface material applications, product performance is closely related to real production conditions, including substrate selection, coating process, curing conditions, surface requirements, and final performance expectations. Through direct communication with customers, Sinograce gained valuable feedback that will support future product optimization and technical service. After returning to China, the team will further review the customer feedback collected during the trip and continue to provide professional support for global customers. Sinograce Chemical will keep strengthening international customer service and offering reliable solutions for coatings, adhesives, resins, and related industrial applications.

Sinograce focuses on the development and production of water-based adhesives. To solve problems such as difficult label separation, adhesive residue, and reduced PET flake cleanliness during PET bottle recycling, Sinograce developed WM549 Water-Based Wash-off Label Adhesive. This product is mainly used for PP film labels applied to PET bottles. Under alkaline washing and recycling conditions, WM549 helps PP film labels separate from PET bottles, reduces adhesive residue, and improves the recycling quality of PET bottles. Sinograce Provides Wash-off Adhesive Solutions for PP Film Labels ✔ Suitable for PP Film Labels The adhesive is designed for PP film labels, meeting both labeling performance and recycling separation requirements for PET bottles. ✔ Designed for PET Bottle Recycling Applications Suitable for PET bottle label applications such as beverage bottles, personal care bottles, and food packaging bottles. ✔ Wash-off Separation Performance Under alkaline washing conditions, it helps PP film labels separate from PET bottles and reduces the risk of label and adhesive residue. ✔ Reduces Adhesive Residue on PET Flakes Helps reduce the impact of adhesive residue on PET flake washing, sorting, and reprocessing. ✔ Water-Based Eco-Friendly System Based on a water-based adhesive system, it better meets the trend of eco-friendly packaging and sustainable recycling. ✔ Customized Application Support Technical support can be provided according to PP film materials, coating processes, labeling conditions, and recycling test requirements. Recommended Product: WM549 Water-Based Wash-off Label Adhesive WM549 is a water-based wash-off label adhesive developed by Sinograce for PP film labels applied to PET bottles. It is suitable for PET packaging labels such as beverage bottles, food bottles, and personal care bottles, helping labels separate more easily during the recycling washing process. As PET bottle recycling requirements continue to increase, the selection of label materials and adhesives is becoming an important factor affecting recycling quality. Sinograce WM549 Wash-off Label Adhesive is suitable for PP film labels applied to PET bottles, helping labels separate more easily during recycling washing, reducing adhesive residue, and supporting high-quality PET bottle recycling.