Xiamen WangQin Chemical Technology Co., Ltd. Cases

  A water-based varnish formulated for ‌PVC substrates, plastic films, and wallcoverings‌ in gravure printing must balance ‌adhesion, flexibility, and environmental compliance‌ while meeting the unique demands of high-speed gravure processes.     The Solution represents our combined polymers expertise.     In a wide range of industrial applications, especially in packaging and printing inks where we excel, we have developed a range of solutions and production formulas based on our own products. In the following table, considering the specific fine-tuning, we have not written out the proportion of each component. We hope that customers who need to contact our sales team in time for further information.   Water Based Varnish For PVC & Film & Wallcovering (Gravure) No. Raw Materials   ① WQ-2017 (flm-forming) ② WQ-2021(acrylic resin solution) or WQ-109 solution or use WQ-2028 with better performance ③ WQ-290/WQ-290 (non-film forming)   ④ DOWSIL™ 51 : Ethanol (1:1)* Dow Corning ⑤ Wax emulsion   ⑥ Defomaer ⑦ Ethanol Technological process: 1.①+②+③+④+ ⑤+⑥, add the above materials and stir at the same time, at a constant speed, finally add ⑦. stirring time: about 30 minutes/300 rpm. 2.*: DOW CORNING DOWSIL™ 51 Additive diluted with Ethanol =l:1 3. 4#cup:11 seconds ± 2 PH value:8.30 ± 0.5 4. Special notes: Please do not directly add ethanol, When the mixer is stirring at a slow speed, slowly add ethanol, the effeet is better (Because direetly adding ethanol will cause demulsification and slag). 5. Final inks:-(Ajusting it accoring to needs) varnish 75%+pigment paste 25%=100 Note: The pigment paste is mixed slowly and finially,the effeet is the most friendly.

Innovating solutions for printing inks, over print varnishes and functional packaging coatings for food packaging, flexible packaging, paper, paper board, corrugated board and labels.   In the broad field of industrial applications, packaging and printing inks represent our long-term expertise. Leveraging our proprietary products, we have developed a series of solutions, including various functional inks and formulations compliant with hygiene and food safety standards. We also provide production formulas tailored to industrial needs. In the table below, specific component ratios are intentionally omitted to allow flexibility for adjustments based on varying application scenarios. For detailed technical specifications or customized requirements, please contact our sales team promptly to obtain valuable information.    Suggested formula for water based printing ink for PVC & Film & Wallcovering (Gravure) General Pigment Paste For Gravure Printing For Plastie Substrate No Raw Materials   ① WQ-2028 The pigment paste for plastie substrates shouldbe ground with WQ-2028 ② Ethanol ③ Deionized Water   ④ Toner (Pigment powder)   ⑤ TEGO-3062 Defoamer   Total   Remark: 1. Firstly mix ①+②+③+④, and finally add ⑤, Stir at a constant speed when adding the above ingredients. 2. Stir and disperse raw materials for 30 minutes→Grind with a grinder for 3 to 4 times→Check the fineness within 5 to10µm. 3.4# cup: 17±5 seconds PH value: 8.30+0.5 Basie test conditions: 1. Should seleet pigment powder with more than 5 levels aleohol resistance. After a constant temperature of 50 degrees for one week, the color paste is qualified ifit isn't thixntropic. 2. The color paste should have good waterproof performanee. 3. The dyne value of the test printing substrate should be greater than 38.

A water-based varnish solution tailored for PE double-coated paper in flexographic printing must prioritize ‌sustainability, food safety compliance, and functional performance‌ for cold drink cups and liquid packaging (e.g., milk/juice boxes). Below is a comprehensive technical outline: ‌1. Key Performance Requirements‌ ‌Regulatory Compliance‌: Meets ‌FDA 21 CFR, EU 10/2011, REACH, and LFGB‌ standards for food-contact materials. Zero migration of harmful substances (e.g., phthalates, heavy metals). Low VOC content (①②③④⑤⑥⑦①②③④⑤⑥⑦

    We are a leading global supplier of high-quality polymer emulsions, dispersions, resins In diverse industrial applications, particularly in packaging and printing inks—areas where we have long specialized and demonstrated expertise—we have developed a comprehensive suite of solutions based on our proprietary products. These include functional ink solutions meeting hygiene, food safety, and regulatory standards, along with customized production formulas.     While the table below outlines our core offerings, we intentionally omit specific component ratios to accommodate the dynamic requirements of varying application scenarios. To achieve optimal performance tailored to your unique needs, please contact our sales team directly. Our experts will provide actionable insights, formulation adjustments, and technical support to ensure your success. Water Based pigment concentration For PE double-coated paper (Flexography) No. Raw Materials   ① WQ-2028 ② Ionized water ③ Toner (Pigment powder) ④ TEGO-3062 Defomaer Remark: 1.First mix(①+②+④), then add③, Stir at a constant speed when adding the above ingredients. 2. Stir and disperse raw materials for 30 minutes→Grind with a grinder for 3 to 4 times - Check the fineness within 10 to 5 µm. 3.4# cup: 19±5 seconds PH value 8.3±0.5 Basie test conditions: 1.Choosing pigment powder with UV-resistant pigments level 5 or above to make pigment paste. Pigement paste requirements: at 50 '℃ constant temperature and humidity for a week pigment paste is not false thick. 2. Using pigement paste for double PE paper and blow 10 minutes, then rub it with wet paper towel,without decoloring is qualified. 3. $pecial attention: Perfom small test with different defoamers and check if there are pinhole or shrinkage, choose the one with good effect.

We focus our innovation on delivering these values and bringing sustainable solutions to you in the packaging   In a wide range of industrial applications, especially in packaging and printing inks where we excel, we have developed a range of solutions and production formulas based on our own products. In the following table, considering the specific fine-tuning, we have not written out the proportion of each component. We hope that customers who need to contact our sales team in time for further informa.   Water Based Varnish For PP (Pel,prepylene) (Flexography) No. Raw Materials   ① WQ-2015 (flm forming) ② WQ-2011(non-film foming) ③ WQ-2028 (acrylic resin solution) or WQ-109 resin solution ④ Wax emulsion ⑤ Pure water ⑥ DOWSIL™51:Ethanol(1:1)* Dow Coming ⑦ Defomaer AGITAN® 351 Münzing Remark: 1.Premix(①+②+③), then add④+⑤+⑥, Add the above materials and stir at the same time, at a constant speed, finally add⑦, 2. *:DOWSIL™ 51 Additive diluted with Ethanol=1:1 AGITAN® 351 Defoamer diluted with Ethanol=1:1(Adjust the amount as per needs) 3.4# cup:15 seconds±5 PH value 8.2±0.5% 4. Final inks:-(Ajusting it accoring to needs) Yellow ink: varnish 65%+pigment paste 35%=100 Blue ink: varnish 65%+pigment paste 35%=100 Red ink: vamish 70%+pigment paste 30%=100 Black ink: varnish 70%+pigment paste 30%=100

  Coating in paper or board is intended to improve printability, smoothness, coverage and strength of the paper surface.   In close collaboration with leading printing ink manufacturers, we have developed ideal adhesives and ink formulations specifically designed for flexography and gravure printing processes. These products fully comply with the stringent requirements of corrugated cardboard printing applications.     While the table below summarizes our core offerings, we intentionally omit specific component ratios to emphasize the need for customized solutions based on individual production parameters. Customers requiring tailored formulations are invited to contact our sales team for technical consultations. Our experts will conduct detailed scenario analyses and provide customized ratio recommendations, ensuring optimal performance for your unique manufacturing requirements Water Based Varnish for Coated art paper-C1S (Gravure) No. Raw Materials   ① WQ-1090 (non-flm forming) ② WQ-227 (film foming) ③ WQ-109 resin solution* ④ Wax emulsion ⑤ Pure water ⑥ Ethanol ⑦ Aerosol® OT-75 Leveling agent ⑧ Defomaer AGITAN® 351 Münzing Remark: 1.Pre-mix ⑤+⑥, then add ①+②+③+⑦, add the above materials and stir at the same time , at a constant speed, note:finally, while stirring add④+⑧, stirring time: about 30 minutes/300rpm. 2.4# cup:12 seconds±5 PH value 8.3±0.5% 3. “*”:Dissolve solid acrylic resin WQ-109 according to Our Dissolution Formula 4. Special notes: Please do not use rosin oil and rosin pigment paste, because they are incompatible with our products We recommend using water-based acrylie pigment paste.

  The application of water-based varnish on coated art paper introduces distinct technical hurdles due to the substrate’s smooth, non-porous surface and high-gloss pre-coated layer. A primary challenge lies in achieving strong adhesion without compromising the paper’s inherent aesthetics, as the sealed surface resists varnish penetration, necessitating tailored resin systems with enhanced wetting agents to avoid fisheyes or cratering     In the broad field of industrial applications, particularly within our expertise in packaging and printing inks, we have developed a series of solutions and production formulations based on our proprietary products. In the table provided, the exact proportions of each component are omitted to accommodate specific formula adjustments. Clients requiring detailed technical specifications are advised to contact our sales team promptly to obtain further information and tailored support.   Formula 4. Water Based Varnish for Coated art paper (Flexography) No. Raw Materials   ① WQ-2011 (non-flm forming) ② WQ-227 (film foming) ③ WQ-2028(acrylic resin solution) or WQ-109 resin solution ④ Pure water ⑤ Ethanol   ⑥ Wax emulsion   ⑦ Defomaer   Total   Remark: 1.Pre-mix ④+⑤, then add①+②+③+⑥, Add the above materials and stir at the same time, at a constant speed, finally add⑦, stirring time: about 30 minutes/300rpm. 2.4# cup:17 seconds±5 PH value 8.2±0.5%

  The application of water-based varnish in flexographic printing for corrugated boxes and kraft paper faces multiple hurdles. First, the porous and fibrous nature of these substrates leads to excessive varnish absorption, compromising gloss uniformity and requiring precise viscosity control to balance penetration and surface coverage. Second, rapid drying on absorbent surfaces often causes fiber swelling or paper distortion, especially in high-speed production lines. Third, achieving sufficient rub resistance and moisture barrier properties without compromising recyclability remains difficult due to the limitations of waterborne resins in forming durable films. Additionally, compatibility issues with water-based inks (e.g., color shift or intercoat adhesion failures) demand tailored formulations to avoid chemical conflicts. Lastly, maintaining consistent print quality on uneven corrugated surfaces—particularly in high-definition graphics—requires optimized anilox rollers and precise ink transfer control to prevent dot gain or pooling. Addressing these challenges hinges on advanced polymer modifications, hybrid additive systems, and process adjustments to align with sustainability goals and performance demands.   In various industrial applications, we have developed a range of solutions and production formulations based on our proprietary products. To address diverse operational requirements, the specific component ratios have not been disclosed in the following table, as tailored solutions require individualized consideration. Customers requiring detailed technical specifications are encouraged to promptly contact our sales team for comprehensive technical guidance and customized support. Formula 3.2 Water Based FelxoVarnish for corrugated boxes & kraft paper -High cost performance No. Raw Materials   ① WQ-2031 (non-flm forming) ② WQ-227 (film foming) ③ WQ-2021(acrylic resin solution) or WQ-109 resin solution ④ Pure water ⑤ Wax emulsion WQ-W47 ⑥ Aerosol® OT-75 Leveling agent Cytec ⑦ Defomaer AGITAN® 351 Münzing Remark: 1.Premix(①+②+③), then add④+⑤+⑥, Add the above materials and stir at the same time, at a constant speed, finally add⑦, stirring time: about 30 minutes/300rpm. 2.4# cup:25 seconds±5 PH value 8.2±0.5% 3. AGITAN® 351Defoamer diluted with Ethanol=1:1 (Adjust the amount as per needs) 4. Special notes: Please do not use rosin oil and rosin pigment paste, because they are incompatible with our products We recommend using water-based acrylie pigment paste.

  We provide a comprehensive portfolio of raw material solutions designed to enhance production efficiency while lowering overall operational costs. Through extensive collaboration with printing ink manufacturers, we have engineered high-performance binders and specialty ink formulations specifically developed for flexographic (flexo) and gravure printing applications. Our products meet all relevant industry specifications and performance standards for corrugated board printing processes.   Due to the unique requirements of different application scenarios, proprietary component ratios are maintained as confidential technical information. For complete formulation details or customized product development, please contact our technical sales team directly to receive detailed technical specifications and comprehensive application guidelines. Formula 3. 3.1 Water Based Varnish For corrugated boxes & kraft paper (Flexography) –High Hiding No. Raw Materials   ① WQ-2031 (non-flm forming) ② WQ-227 (film foming) ③ WQ-109 resin solution* ④ Pure water ⑤ Wax emulsion Dow Corning ⑥ Aerosol® OT-75 Leveling agent Cytec ⑦ Defomaer AGITAN® 351 Münzing Remark: 1.Premix(①+②+③), then add④+⑤+⑥, Add the above materials and stir at the same time, at a constant speed, finally add⑦, stirring time: about 30 minutes/300rpm. 2.4# cup:19 seconds±5 PH value 8.2±0.5% 3. Dissolve solid acrylic resin WQ-109 according to our dissolution formula -30% WT 4. AGITAN® 351Defoamer diluted with Ethanol=1:1 (Adjust the amount as per needs) 5. Special notes: Please do not use rosin oil and rosin pigment paste, because they are incompatible with our products We recommend using water-based acrylie pigment paste.

WE CREATE value by providing high-quality products for the printing and packaging industry.    To address diverse substrate requirements, we have developed comprehensive solutions leveraging our proprietary product portfolio,including formulated customized production formulas. The table below outlines these solutions. Due to the case-specific nature of each application, exact component proportions are intentionally omitted to ensure tailored optimization. For detailed technical specifications or implementation guidance, we encourage customers to promptly contact our sales team through the provided communication channels.   Formula 2. Water Based Varnish For PE(poluethylend)(Flexography) No. Raw Materials   ① WQ-2015 (flm-forming) ② WQ-2090 (non-film foming) ③ WQ-2028(acrylic resin solution)or WQ-109 solution ④ Wax cmulsion ⑤ DOWSIL™51:Ethanol(1:1)* Dow Corning ⑥ Defoamer   Total Remark: 1.Premix(①+②+③)+④+⑤+⑥ Add the above materials and stir at the same time, at a constant speed. 2.*:DOWSIL™51 Additive diluted with Ethanol=1:1 3.4# cup:25 seconds±2 PH value 8.2±0.5%

Flexible packaging inks not only elevate the visual appeal of packaging but also ensure functional durability, maintaining image integrity throughout manufacturing, distribution, and end-use. These products are engineered to meet diverse demands across flexible packaging applications, combining performance with compliance for high-speed production and stringent regulatory standards. We offer a comprehensive range of water-based dispersions and resins specifically engineered for the packaging industry. To address diverse substrate requirements, our team has formulated customized solutions supported by production formulas derived from our proprietary technology platforms. While specific formulation ratios are not disclosed in this document due to proprietary considerations and case-specific requirements, we invite interested parties to contact our dedicated sales team at your earliest convenience for personalized technical consultation and product specifications.   Suggested Formula For Water-based Varnish Water Based Varnish For Plastic Substrate (Flexography) - With High Adhesion No. Raw Materials   ① WQ-2015 (flm-forming) ② WQ-2011 (non-film foming) ③ WQ-2028(acrylic resin solution)or WQ-109 solution ④ Wax cmulsion ⑤ DOWSIL™51:Ethanol(1:1)* Dow Corning ⑥ Defoamer TEGO Foamex 825 Total   Remark: 1.①+②+③+④+⑤+⑥ Add the above materials and stir at the same time, at a constant speed,stirring time: about 30 minutes/300rpm. 2.*:DOWSIL™51 Additive diluted with Ethanol=1:1 3.4# cup:25 seconds±2 PH value 8.5±0.5% 4.Final inks: vamish70%+pigment paste 30%=100 (Ajusting it accoring to needs)