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How does the Brand tag detect if the paint is peeling?-B

2025-04-25

Third. Brand tag field simulation tests (user scenario replication) Artificially accelerated wear Method: Use Martindale abrasion meter, load 9kPa pressure, evaluate after 10,000 times of rubbing. Case: A sports brand tag needs to pass 2000 times of friction (simulating 1 year of daily use). Brand tag chemical corrosion test Reagents: 75% alcohol, sweat simulating solution (pH 4.7-7.5), sunscreen (SPF50+). Time: No discoloration, dissolution or loss of adhesion after 24 hours of exposure. Extreme temperature difference test Procedure: -30℃ freezing for 24 hours → 60℃ baking for 2 hours, cycle 5 times. Focus: Check the bonding strength between hot melt adhesive and paint film to avoid delamination. Fourth. Brand tag data analysis and improvement direction Failure mode analysis (FMEA) Common problems: insufficient adhesion of paint film (45%), poor compatibility of substrate (30%), incomplete curing (25%). Improvement case: A brand improved adhesion to 5B by adding corona treatment (dyne value ≥42). Brand tag quality control points Incoming material inspection: surface roughness of substrate Ra≤0.8μm (metal), Dyne value≥38 (plastic). Process monitoring: spraying thickness 20-30μm (wet film), curing temperature ±5℃, time ±10%. Finished product inspection: 10% sampling inspection for each batch, non-conforming products should be traced back to the previous 3 processes. Fifth. industry practice cases Luxury labels UV curing ink + thermal transfer process, passed 3M 810 tape test (adhesion 15N/25mm). Outdoor equipment labels add polyurethane varnish layer, passed 1000 hours QUV test. FMCG labels Optimize water-based ink formulation, pass 24 hours sweat immersion test. Conclusion Detecting whether a Brand tag loses its paint requires a combination of basic laboratory tests (e.g., scratch method, abrasion test) and environmental simulation tests (e.g., humidity, heat, salt spray, UV aging), as well as field simulations (artificial abrasion, chemical corrosion). Optimizing process parameters (e.g., substrate treatment, curing conditions) through failure mode analysis can significantly improve label durability….

How does the brand tag test for 24-hour corrosion? Non-toxic-A

2025-04-24

“Brand tag” usually refers to a brand identity label, which is tested to see if it passes a 24-hour corrosion test and is non-toxic, using a combination of material science, chemical analysis and environmental testing methods. The following are specific ideas for testing: First. Brand tag 24-hour corrosion test Test purpose To simulate the resistance of the label in a humid, corrosive environment (such as salt spray, acid and alkali solutions), and assess whether the material corrodes, discolors, deforms or degrades in performance within 24 hours. Brand tag test methods Salt spray test: Place the brand tag in a salt spray test chamber to simulate an ocean or high humidity environment, spray a 5% sodium chloride solution and observe the change in appearance after 24 hours. Acid and alkali immersion test: Immerse the brand tag in an acidic solution at pH=2 or an alkaline solution at pH=12 for 24 hours to detect the chemical resistance of the material. Humidity and heat cycle test: Combine high temperature and high humidity with low temperature and low humidity environment, cycle for 24 hours to evaluate the label’s weather resistance. Judgment Criteria No corrosion spots, rust or material dissolution on the label surface. Text and graphics are clearly legible without fading or blurring. Adhesive without peeling or failure. Second.Brand tag non-toxicity test Test purpose To ensure that the labeling materials and printing inks of harmful substances (such as heavy metals, phthalates, polycyclic aromatic hydrocarbons, etc.) do not exceed the standard, in line with safety standards. Test Method Chemical extraction method: Soak the label in simulated body fluids (e.g. artificial saliva, sweat) for 24 hours to extract the harmful substances and test the content by instrumental analysis (e.g. ICP-MS, GC-MS). Direct detection method: Using X-ray fluorescence spectrometer (XRF) or Raman spectrometer, analyz the chemical composition…

How does the brand tag test for 24-hour corrosion? Non-toxic-B

2025-04-24

Third. Brand tag comprehensive testing process Sample Preparation Randomly take label samples to ensure coverage of different batches, colors and materials. Record the substrate (e.g. paper, plastic, metal), ink type and post-treatment process (e.g. lamination, hot stamping) of the labels. Brand tag 24-hour corrosion test Perform salt spray, acid/alkali or humidity/heat cycling tests as described above and record changes in appearance and performance. Non-toxicity test We perform the Chemical extraction and biological toxicity tests on the samples after corrosion test and the original samples respectively. Data Analysis and Determination Compare the data before and after the test to evaluate whether the label meets the corrosion resistance and non-toxicity requirements. If a certain index fails, it is necessary to trace back the production process and optimize the material or process. Fourth.precautions Brand tag test environment control Ensure stable laboratory temperature, humidity and corrosive medium concentration to avoid external factors interfering with the results. Brand tag standard reference Select the test method and limit value according to the regulations of the target market (e.g. EU EN 71-3, US ASTM F963, China GB 6675). Long-term verification The 24-hour test is an accelerated test, which needs to be combined with long-term aging tests (e.g., 90 days, 180 days) for comprehensive evaluation in actual use. Through the above methods, the 24-hour corrosion resistance and non-toxic performance of brand labels can be systematically tested to ensure that they comply with safety standards and are suitable for high-risk areas such as food and children’s products.

100 Questions on Basic Electroplating Knowledge (Part 7)

2025-04-23

31.Why is pig iron castings more difficult to plating than other steel parts? Answer: Cast pig iron parts, the surface is often uneven and porous, in such a surface will only get rough and porous plating. In addition, in the pig iron surface, there are free graphite, it not only affects the plating and the combination of base metal, at the same time, there are pores in the plating of the case, it will become the cathode of the corrosion battery, so that the plating of the metal is quickly destroyed, the graphite in the pig iron, and sometimes have to reduce the role of the hydrogen super-voltage, resulting in the hydrogen is easy to precipitate in the place, impeding the deposition of metal, so the casting of the pig iron parts more than other Iron and steel parts are difficult to plating. 32.. In the cyanide copper plating, free cyanide is insufficient, what should be added? Can I add cuprous cyanide? Answer:When free cyanide is insufficient in copper cyanide plating, sodium (or potassium) cyanide should be added. If you add cuprous cyanide, Gradual reduction of the free cyanide , and the copper coating becomes coarse and rough.CuCN+2NaCN=Na2Cu(CN)3 33.When making-up a cyanide copper plating solution, is it correct to dissolve the powdered cuprous cyanide in warm water and then add it to the plating bath? Answer:No. due to cuprous cyanide is insoluble in water. Copper cyanide should be dissolved in a solution of sodium (or potassium) cyanide, and the amount of sodium cyanide is 1.15 times that of copper cyanide. 34.In the cyanide copper plating solution, the use of air stirring is appropriate? Answer:It is not suitable to use air stirring in cyanide copper plating solution. Because the carbon dioxide in the air will react with the alkali in the…

100 Questions on Basic Electroplating Knowledge (Part 6)

2025-04-23

26.Known current density and plating time, how to find the thickness of the plating layer? Answer: First of all, according to the type of plating the current efficiency of the process, while checking the table to get the electrochemical equivalent of the metal and the density (specific gravity), and then calculated according to the following formula: ■ Plating thickness d formula (d: microns).Plating thickness d formula (d: micron)d=(C×Dk×t×ηk×100)/(60×r)■Plating time t calculation formula (t: minutes)t=(60×r×d)/(C×Dk×ηk×100)■Cathode current density Dk calculation formula (Dk: A/dm2)Dk=(60×r×d)/(C×t×ηk×100)■Cathode current efficiency calculation formula:ηk=(60×r×d)/(C×t×Dk×100)C=electrochemical equivalent (g/ampere-hour)Dk=cathodic current density (amperes/square decimeter)t=plating time (min)ηκ=cathodic current efficiency (%)r = plating layer metal density (g / cm 3)Example: nickel plating solution is known to be 95% current efficiency, cathode current density of 2.5A / d ㎡, plating 20 minutes after the resulting thickness of the plating layer is how much? Check the table to get the nickel electrochemical equivalent of 1.095 density 8.8d = (C × Dk × t × ηk) / 60r = 1.095 × 2.5 × 20 × 95% × 100 / (60 × 8.8) = 9.85um 27.What are anodic and cathodic plating, and for iron substrate, zinc, copper, nickel, chromium, copper-tin alloy and so on. plating belongs to that category of plating? Answer:Base on the electrochemical relationship between the plated metal and the base metal, the plating can be divided into anodic plated and cathodic plated, under general conditions, the electrode potential of the plated metal is negative than that of the base metal, it is called anodic plating, and vice versa, it is called cathodic plating. Zinc plating electrode potential than the electrode potential of the iron substrate is negative, so the zinc plating is anodic plating. Copper, nickel, copper-tin alloy plating potential than the potential of the iron substrate is positive. So, it is cathodic plating. Chromium plating…

100 Questions on Basic Electroplating Knowledge (Part 5)

2025-04-23

21.What is electrolysis? Answer:When the electric current passes through the electrolyte, the redox reaction occurs on the electrode so that the electrolyte is decomposed under the action of the current is called electrolysis. When the electrolyte is energized, the cations move to the cathode, and get electrons at the cathode and be reduced to a new substance; anions move to the anode, and lose electrons at the anode and be oxidized to a new substance. Sometimes the oxidation of the electrode material also occurs at the anode. An example is the electrolysis of molten sodium chloride.NaCl→Na++Cl-Cathode Na++e→NaAnode 2Cl–2e→Cl2↑Electrolysis industry plays a huge role in the national economy, the smelting of many non-ferrous and rare metals, the preparation of chemical industry products and electroplating, electropolishing, anodic oxidation and so on are realized by electrolysis. Translated with DeepL.com (free version) 22.What is electroplating? Answer: By electrolysis, in the metal parts on the surface of the deposition of a thin layer of other metal methods, it is called electroplating. Plating includes pre-plating treatment (oil removal, rust removal), plated metal layer and post-plating treatment (passivation, dehydrogenation) and other processes. It is used to prevent corrosion of metal products, repair worn parts, increase durability, reflectivity, electrical conductivity and aesthetics. Plating will be metal parts as the cathode, the plated metal plate or bar as the anode, respectively, hanging in the copper pole bar above the electrolyte containing plating components immersed in the direct current.In individual cases, there are also insoluble anodes, such as chromium plating with lead or lead-antimony alloy anode. 23.What is current strength? Answer:Current strength, referred to as current, is the amount of electricity passing through the cross-section of the conductor per unit time. The unit is ampere, referred to as ampere (A). 24.What is the current density? How to calculate? Answer:Current density…

Brand tag temperature of electrophoresis rack

2025-04-23

The term “Brand tag electrophoresis lattice” is not a common term in the industry, but in conjunction with the “electrophoresis lattice” related process, the temperature control needs to be determined according to the specific type of process and equipment requirements. The following is the possible temperature range and analysis: Electrophoresis process temperature Conventional electrophoresis We controll the temperature of the electrophoresis bath at 25°C to 30°C to make sure a uniform and dense electrophoresis film. Too high a temperature may cause the paint film to hang, and too low a temperature may affect the reaction rate of electrophoresis. Low temperature electrophoresis For some special processes ( low-temperature curing electrophoresis paint),we should control the bath temperature at 15°C to 20°C to match the low-temperature curing system. Curing temperature of the frame (coating) Heat curing If “lattice” refers to the curing of the coating after electrophoresis, the temperature is usually 160°C to 180°C and the time is 20 to 30 minutes, depending on the type of electrophoresis paint ( epoxy, polyester). UV curing We use UV curing to instantly cure coatings without heat, relying on a UV light source instead Equipment operating temperature Electrophoresis tank We should equip with a temperature control system in tank to ensure that the temperature of the tank liquid is stabilized within the range of process requirements, with a fluctuation of no more than ±2°C. Curing equipment The temperature of curing oven should be uniform, and the temperature difference should not exceed ±5°C to avoid uneven coating quality. Special process temperature Low temperature electrophoresis + high temperature curing Some processes may use low-temperature electrophoresis with high-temperature curing , and the temperature control of the electrophoresis and curing stages should be strictly differentiated. Rapid curing Some high solids electrophoresis paints may support low temperature rapid curing from 140°C…

Brand tag spray lattice oil temperature

2025-04-23

The term “Brand tag Spray Rack Oil” is not a common or widely recognized term, and in conjunction with the term “Spray Rack”, it is assumed that it may relate to the lubricant of industrial spraying equipment or related process oils, but the specific temperatures need to be determined based on the process of the equipment, the type of oil, and the usage scenario. However, the specific temperature should be determined by the equipment process, oil type, and usage scenario. The following are possible temperature ranges and analyses: Brand Tag equipment operating temperature If the term “spray frame” refers to spray equipment, the operating temperature is usually specified by the equipment manufacturer. For example, hydraulic systems or transmission components of spray equipment may require lubricants to operate between 40°C and 80°C, as specified in the equipment manual. If we involve a high temperature coating process , temperatures may be as high as 180°C to 220°C, and we required a special lubricant with a high temperature tolerance Oil type and temperature Hydraulic fluids Typical operating temperatures range from 30°C to 80°C. high temperature environments.required High viscosity index oils Gear oil Used for heavy-duty gear transmission, the working temperature can reach 100°C to 120°C, and good extreme pressure and anti-wear performance is required Heat transfer oil Used in high temperature heating system, the working temperature range is from 150°C to 350°C. it should select Synthetic heat transfer oil Process temperature If the “Spraybar” involves a spraying process,we should take into acount the following temperatures: Ambient coating temperature: usually 20°C to 30°C to make sure that the oil is fluidity. Curing temperature: The temperature of powder coating curing is at 180°C to 220°C , where the lubricant needs to be resistant to high temperatures. Safety and operating recommendations Check equipment manuals Equipment manufacturers…

Brand Tags with b-type oil spraying of Performance Requirements, Testing Standards and Optimization of Electroplated

2025-04-22

Brand tag weather resistance Ultraviolet stability the spray oil layer needs to have good UV resistance to prevent yellowing and chalking. Adding UV absorber can prolong the service life. Brand tag temperature adaptability The plating and sprayed layer should be able to withstand high ( 80°C) and low (-20°C) temperatures to avoid cracking due to thermal expansion and contraction. Testing standards We require QUV accelerated weathering test or damp heat cycle test . Brand tag optical properties Gloss Plating (e.g. chrome) has high reflectivity and the gloss of the sprayed layer can be adjusted with matte, semi-gloss or high-gloss coatings. Brand tag color consistency We coordinate the color of the oil-sprayed layer with the plating layer to avoid any color difference.” Transparency For signage that requires light transmission (e.g., backlit logo), transparent spray material should be selected. Electrical properties Conductivity plating layer (such as gold, copper) has good electrical conductivity, suitable for electronic labels or the need for electrostatic shielding of the scene. Insulation the oil spraying layer is an insulating material, which can prevent the plating layer from short-circuit or leakage. Mechanical properties Impact resistance the oil spray layer can absorb the impact energy and prevent the plating layer from peeling off. Scratch resistance The combination of hard plating layer and high hardness oil spray layer provides excellent scratch resistance. Environmental Adaptability Brand tag chemical resistance Signage may come into contact with chemicals such as acids, alkalis, solvents, etc. we should selecte Chemical resistant plating and oil spraying materials Salt spray resistance suitable for marine or high humidity environment, need to be verified by salt spray test. Brand tag optimization suggestions Material Selection Select the appropriate plating and oil spraying materials according to the application scenario. For example, outdoor signage is recommended to use UV coating and hard plating…

How does the Brand tag detect if the paint is peeling?-B

How does the brand tag test for 24-hour corrosion? Non-toxic-A

How does the brand tag test for 24-hour corrosion? Non-toxic-B

100 Questions on Basic Electroplating Knowledge (Part 7)

100 Questions on Basic Electroplating Knowledge (Part 6)

100 Questions on Basic Electroplating Knowledge (Part 5)

Brand tag temperature of electrophoresis rack

Brand tag spray lattice oil temperature

Brand Tags with b-type oil spraying of Performance Requirements, Testing Standards and Optimization of Electroplated

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