Steven S.’s Post

🌈 What Organic Pigments are Used in Plastic PVC? 🌈 ➡ PVC is an important general-purpose thermoplastic material with a wide range of uses, including commonly used low-end and high-end fields with special performance requirements such as building materials, automobiles, doors and windows, etc. Due to its low processing and molding temperature, various types of organic pigments can be used Coloring is carried out, but the colorant should still be selected based on the processing conditions, the final use of the colored product, etc., and of course, the phenomenon of blooming when coloring PVC must be avoided. The blooming phenomenon when coloring PVC can be considered to be caused by the partial dissolution of the organic pigment as a colorant at the processing temperature and the recrystallization of the pigment at room temperature. This phenomenon also exists in other polyolefin plastics, especially for In soft PVC materials, the added plasticizer increases the solubility of the colorant in it, making it easier to produce blooming. As the processing temperature increases, the blooming phenomenon becomes more serious; furthermore, because the pigment and PVC The compatibility between them is not ideal, especially when certain additives are contained, which will lead to oversaturation of the pigment and surface precipitation. PVC coloring can use different grades of organic pigments according to different requirements: ➡ 1. General-purpose colorant, with good economy, but average durability (yellow and red) varieties include Benzidine Yellow G, Permanent Yellow G, Permanent Yellow GR, Red Toner C, Fast Scarlet Bright BBN, Brilliant Red 2BP , Carmine Red 7B. ➡ 2. Colorants (yellow and red) with excellent performance include Pigment Yellow 83 and Pigment Red 254. ➡ 3. Blue colors include Phthalocyanine Blue B and Phthalocyanine Blue BGS. ➡ 4. Green includes Phthalocyanine Green G. #Colorsunshinepigment #organicpigment #organicpigments #EffectPigments #Pigments #pigmentexperts #ColorPigments #PigmentManufacturing #ColorfulCreations #PigmentSuppliers #PigmentTechnology #PigmentPowders #PigmentProduction #ColorfulSolutions 

My new article entitled- "Disperse dyes: Properties, Mechanisms, and Application Methods in Textile Industry." Disperse dyes, which are organic coloring compounds that lack ionizing groups and possess low water solubility, are ideal for dyeing hydrophobic textile materials via colloid dispersion. You can check on the following link to know more about disperse dyes. #dye #dyeing #dispersedyeing #Textile #coloration #textileindustry #TextileEngineering #dispersedye #textileexplainer

🟢🟡🟡🟡🟡🔴 Sudarshan Pigment Yellow 138 (PY138) 🟡 PY138 is one of the greenest shade yellow organic pigments. 🟡 Sudarshan’s PY138 plant is 100% backward integrated. 🟡 The purity of the intermediate determines the shade of the PY138 (from red shade to green shade). 🟡 Opaque and transparent versions - transparent is more green shade. What can PY138 do for you as a color formulator? - very green shade yellow - high light fastness and heat resistance - has FDA compliance What should you keep in mind when formulating with PY138? - sensitive to the photo degradation of TiO2 (may want to consider using PY53, Sudatherm™ Yellow 6406K/C in place of TiO2 for the pastel shades). - in coatings, can chalk at high loadings with certain binders. Sudarshan offers four PY138 products for your color formulating needs. Coatings Applications: Sudaperm™ Yellow 3030C (🔴red shade) Sudaperm™ Yellow 3032C (🟢green shade) Plastics Applications: Sudaperm™ Yellow 3031K (🔴red shade) Sudaperm™ Yellow 3033K (🟢green shade) Have questions? Interested in a sample of PY138 for your color formulation? Please connect with me at bpiro@sudarshan.com or visit our website at www.sudarshan.com for more information about Sudarshan and our products. #Sudarshan #Sudaperm #PigmentYellow138 #PY138 #yelloworganicpigment #coatings #plastics

🟢🟡🟡🟡🟡🔴 Sudarshan Pigment Yellow 138 (PY138) 🟡 PY138 is one of the greenest shade yellow organic pigments. 🟡 Sudarshan’s PY138 plant is 100% backward integrated. 🟡 The purity of the intermediate determines the shade of the PY138 (from red shade to green shade). 🟡 Opaque and transparent versions - transparent is more green shade. What can PY138 do for you as a color formulator? - very green shade yellow - high light fastness and heat resistance - has FDA compliance What should you keep in mind when formulating with PY138? - sensitive to the photo degradation of TiO2 (may want to consider using PY53, Sudatherm™ Yellow 6406K/C in place of TiO2 for the pastel shades). - in coatings, can chalk at high loadings with certain binders. Sudarshan offers four PY138 products for your color formulating needs. Coatings Applications: Sudaperm™ Yellow 3030C (🔴red shade) Sudaperm™ Yellow 3032C (🟢green shade) Plastics Applications: Sudaperm™ Yellow 3031K (🔴red shade) Sudaperm™ Yellow 3033K (🟢green shade) Have questions? Interested in a sample of PY138 for your color formulation? Please connect with us at contact@sudarshan.com or visit our website at www.sudarshan.com for more information about Sudarshan and our products. #Sudarshan #Sudaperm #PigmentYellow138 #PY138 #yelloworganicpigment #coatings #plastics

🌈 PVC Wire and Cable Coloring Precautions 🌈 In the coloring of PVC wires and cables, taking into account the characteristics of the resin and related additives used, combined with the performance characteristics of the pigments, only by selecting the appropriate pigment can the ideal coloring effect be obtained. The following issues need to be paid attention to when coloring PVC wires and cables: 🔴 1. Light Resistance Organic pigments with different molecular structures have different light resistance. Under sunlight, due to the ultraviolet radiation in sunlight and the presence of substances such as oxygen and water, the molecular structure of the colorant is destroyed, causing fading or discoloration. Therefore, the more stable the molecular structure of organic pigments, the better the light resistance. The light resistance of organic pigments used for coloring PVC wires and cables should be above level 5. As the amount of organic pigments increases, the light resistance improves. Light resistance is not only related to the molecular structure and dosage of organic pigments, but also to the dosage of plasticizer. Generally speaking, as the amount of plasticizer increases, the light resistance decreases. 🔴 2. Heat Resistance When the temperature rises, the solubility of organic pigments in PVC can be improved. However, due to the different temperature resistance of organic pigments, their coloring effects are also different. Some pigments change color when heated. Therefore, be sure to choose organic pigments with excellent temperature resistance as colorants. 🔴 3. Dispersion Organic pigments used for PVC wires and cables must have good dispersion. Generally, the dispersion of organic pigments is better than that of inorganic pigments. Dispersibility has a direct impact on the brightness of organic pigments. Colors with poor dispersion are not bright and have low tinting power. Therefore, organic pigments with good dispersion should be selected. 🔴 4. Migration The mobility of organic pigments refers to the displacement of colored particles in the colored system, especially the phenomenon of moving from the inside of the colored body to the surface. This displacement situation is most prominent in PVC coloring systems. The migration of organic pigments in PVC wires and cables can usually be divided into four situations, namely scaling, floating color, bleeding and powdering. The first phenomenon occurs directly during the coloring process, and the remaining three occur during the use of the coloring material. #Colorsunshinepigment #organicpigment #organicpigments #EffectPigments #Pigments #pigmentexperts #ColorPigments #PigmentManufacturing #ColorfulCreations #PigmentSuppliers #PigmentTechnology #PigmentPowders #PigmentProduction #ColorfulSolutions 

Cold brand reactive dyes are a type of highly colored organic substance used to tint textiles. They attach to their substrates through a chemical reaction that forms a covalent bond between the dye molecule and the fiber.  Cold brand reactive dyes are also known as dichlorotriazine-based dyes. They are more reactive than monochloro dyes and require a lower temperature and milder alkali for application.  Cold brand dyes are very reactive and have high fastness properties. They require careful control and should only be used where the dyeing process can be fully automated.  The batchwise dyeing temperature of cold brand dyes for optimal fixation is 300–400°C. For applications and fixation, these dyes require milder alkaline conditions at an optimum temperature of 25–35°C.  Reactive Dyes - DAYGLO M' SERIES DYES These are called 'COLD BRAND DYES'. These dyes are having very good reactivity fastness properties. These dyes require milder alkaline conditions for applications & fixation at the optimum temperature of 25-35 deg c. Frequently asked questions in fabric dyeing - Cold brand dyes The batch wise dyeing temperature of these dyes for optimal fixation is 300C to 400C. These dyes are very much reactive and show high fastness properties. These dyes require very careful 

#dyeing 𝗜 𝗦𝗔𝗥𝗔𝗦𝗣𝗛𝗘𝗥𝗘 𝗚𝗜𝗔𝗡𝗧: 𝗔 𝗴𝗶𝗮𝗻𝘁 𝗳𝗼𝗿 𝗱𝘆𝗲𝗶𝗻𝗴   This new developed product 𝗦𝗔𝗥𝗔𝗦𝗣𝗛𝗘𝗥𝗘 𝗚𝗜𝗔𝗡𝗧 is an all-in-one product for #dyeing #polyester with disperse dyes as well as 1:2 metal complex dyes on wool and polyamide❕ In addition to its excellent dispersing and washing properties 🧼, 𝗦𝗔𝗥𝗔𝗦𝗣𝗛𝗘𝗥𝗘 𝗚𝗜𝗔𝗡𝗧 also has a very good gliding effect and internal softening effect and therefore prevents the formation of creases or breaks in densely folded fabrics and articles that tend to crease. This product contains a #multifunctional #vegan bio-based lecithin compound with crease-preventing effect for CEL, PES, PA, EL and fibre protection for WO blends. 👉 If any advice is wanted, please contact our Textile Pioneer Petra Schramm directly. ▶️ Have a look for more technical details about 𝗦𝗔𝗥𝗔𝗦𝗣𝗛𝗘𝗥𝗘 𝗚𝗜𝗔𝗡𝗧: https://lnkd.in/eJ93SwNe #smartchemistrywithcharacter #allinone #wool #polyamide #excellentproperties #biobased #fiberprotection #saraspheregiant

The environmental and health implications of synthetic dyes have led to a growing concern, with the reliance of the textile industry on these dyes being a significant contributor to the problem. The development of natural dyeing processes that can achieve consistent and durable coloring outcomes is a pressing challenge. The utilization of citric acid as a crosslinking agent in the mordanting process is a fascinating approach, as it directs the esterification reaction to enhance the binding of natural dyes to cotton fabric. The optimization of parameters through response surface methodology (RSM) demonstrates a rigorous and systematic approach to achieving optimal coloring outcomes. The findings of this recent study underscore the importance of pre-mordanting in achieving superior color durability, and highlight the potential of citric acid as a versatile and effective crosslinking agent. These results have significant implications for the development of sustainable and eco-friendly textile dyeing processes. The application of natural dyes and optimized mordanting techniques can pave the way for a more environmentally responsible textile industry. Read the full paper here 👇 https://lnkd.in/dSkYy4ey #GreenChemistry #SustainableTextiles #NaturalDyes #TextileInnovation #EcoFriendly #Mordanting #ColorFastness

🌱 Derived from the Most #Natural Color - Plant Dyeing 🌱   Plant dyeing, also known as grass #dyeing, is a method of #coloring fabrics using natural #plant dyes. This technique embraces the #beauty of nature, bringing vibrant, eco-friendly hues to #textiles. 🌿   🎨 Color Source 🎨 The dyes used in plant dyeing come from a wide variety of sources, such as traditional Chinese #medicine, woody plants, tea, herbs, fruits, and vegetables. Among these, traditional Chinese medicine and woody plants are the most #commonly selected. 🌳 For example, suma can be used to achieve red tones, grape skins for purple, and onion skins for pink. 🍇🧅   🛠️ Craft Production 🛠️ 🔸 Choose a dye: Select the right plant-based dye according to the desired color. 🍃 🔸 Boil the dye: Place the plant material in water and boil it for about 30 minutes, allowing the pigments to fully release. 🍲 🔸 Filter out residue: Remove the leftover plant material using a colander or chopsticks to keep the dye solution clear. 🍵 🔸 Prepare the fabric: Soak the fabric completely in the dye and, if desired, use cotton threads or wooden clips to create patterns.🧵 🔸 Dyeing process: Boil the fabric in the dye for a while, depending on how deep you want the color to be.🔥 🔸 Color fixing: After dyeing, soak the fabric in diluted alum water for 10 minutes to help the color set and prevent fading during future washes. 🧼 🔸 Rinse and dry: After fixing, rinse the fabric with clean water, removing excess dyes and fixing agents. Dry it in the shade to ensure even color and avoid sun damage. ☀️ 💚 Benefits of Plant Dyeing 💚 1️⃣ Unique natural colors: Plant dyeing creates one-of-a-kind shades, so no two pieces will ever be the same! 🌈 2️⃣ Medicinal properties: Many plants used in dyeing, like the root of Banlang, can offer skin benefits such as sterilization and detoxification. 💧 3️⃣ Eco-friendly: Unlike chemical dyes, plant dyes are environmentally sustainable, allowing us to embrace nature in both color and composition. 🌍 #NaturalDyeing #EcoFriendly #NaturalColors #SustainableFashion #TraditionalCrafts #TextileInnovation