microfine titanium dioxide

A great number of other brands with fancy names have gone out of the German market, because of some defects in the processes of manufacture. The English exporters, as a rule, offer three or four grades of lithopone, the lowest priced consisting of about 12 per cent zinc sulphide, the best varying between 30 and 32 per cent zinc sulphide. A white pigment of this composition containing more than 32 per cent zinc sulphide does not work well in oil as a paint, although in the oilcloth and shade cloth industries an article containing as high as 45 per cent zinc sulphide has been used apparently with success. Carefully prepared lithopone, containing 30 to 32 per cent sulphide of zinc with not over 1.5 per cent zinc oxide, the balance being barium sulphate, is a white powder almost equal to the best grades of French process zinc oxide in whiteness and holds a medium position in specific gravity between white lead and zinc oxide. Its oil absorption is also fairly well in the middle between the two white pigments mentioned, lead carbonate requiring 9 per cent of oil, zinc oxide on an average 17 per cent and lithopone 13 per cent to form a stiff paste. There is one advantage in the manipulation of lithopone in oil over both white lead and zinc oxide, it is more readily mis-cible than either of these, for some purposes requiring no mill grinding at all, simply thorough mixing with the oil. However, when lithopone has not been furnaced up to the required time, it will require a much greater percentage of oil for grinding and more thinners for spreading than the normal pigment. Pigment of that character is not well adapted for use in the manufacture of paints, as it lacks in body and color resisting properties and does not work well under the brush. In those industries, where the paint can be applied with machinery, as in shade cloth making, etc., it appears to be preferred, because of these very defects. As this sort of lithopone, ground in linseed oil in paste form, is thinned for application to the cloth with benzine only, and on account of its greater tendency to thicken, requires more of this comparatively cheap thinning medium, it is preferred by most of the manufacturers of machine painted shade cloth. Another point considered by them is that it does not require as much coloring matter to tint the white paste to the required standard depth as would be the case if the lithopone were of the standard required for the making of paint or enamels. On the other hand, the lithopone preferred by the shade cloth trade would prove a failure in the manufacture of oil paints and much more so, when used as a pigment in the so-called enamel or varnish paints. Every paint manufacturer knows, or should know, that a pigment containing hygroscopic moisture does not work well with oil and driers in a paint and that with varnish especially it is very susceptible to livering on standing and to becoming puffed to such an extent as to make it unworkable under the brush. While the process of making lithopone is not very difficult or complicated, the success of obtaining a first class product depends to a great extent on the purity of the material used. Foreign substances in these are readily eliminated by careful manipulation, which, however, requires thorough knowledge and great care, as otherwise the result will be a failure, rendering a product of bad color and lack of covering power.

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microfine titanium dioxide2025-08-14 03:50
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  • Inhaling high concentrations of titanium dioxide dust or fumes, which may occur in occupational settings — such as in the production or processing of products containing the mineral — may cause respiratory problems like coughing, wheezing and shortness of breath, in addition to eye and skin irritation.

  • Expert Manufacturers of 30-50nm TiO2 Powders Pioneers in Nanotechnology

  • For those wishing to limit or avoid exposure to titanium dioxide in foods, there are some steps you can take. 

  • In conclusion, a post bed pattern sewing machine for leather is a valuable tool for anyone who works with leather materials. Its unique design, powerful motor, and precise stitching capabilities make it an essential investment for leather crafters and sewers. If you are looking to take your leather crafting to the next level, consider investing in a post bed pattern sewing machine for leather. Your projects will benefit from the enhanced precision, efficiency, and quality that this type of sewing machine provides.


  • Heavy Duty Computerized Auto Pattern Sewing Machine For Slings LS273-3020

  • Conclusion


  • One challenge faced with handheld sewing machines is their power and tension settings. Unlike traditional sewing machines, which typically provide adjustable tension, some handheld models may not offer the same versatility. Thus, it's crucial to practice and understand how your specific model handles thick fabrics. Testing on scrap pieces can help gauge how much pressure to apply and what settings yield the best stitch quality.


  • Overall, heavy duty sewing machines are built for longevity, with all-metal construction and premium internal components. They can sew for years without issues and only need periodic oiling. By contrast, plastic gears and components in standard machines wear out more quickly. Professional heavy usage requires the durable construction of true heavy duty machines.

  • When it comes to leatherwork, choosing the right materials is crucial for achieving both aesthetics and longevity. One of the most vital components in any leather project is the thread used for stitching. Among the various options available, thick thread has gained popularity among artisans and hobbyists alike. This article explores the benefits of using thick threads for sewing leather and provides insights into how they elevate the quality of leatherworking projects.


  • The backstitch is a fundamental sewing technique that serves to secure the start and end of a seam. Traditionally, this process required the sewist to manually reverse the stitching at both ends of a seam, which could be tedious and time-consuming. With the advent of sewing machines equipped with an automatic backstitch feature, this tedious step has been streamlined. The machine automatically stitches backward for a few stitches, locking the seam in place without any manual intervention.


  • The debate between investing in a standard sewing machine versus a heavy-duty one is often settled by understanding their respective costs over a more extended period. But how do the two compare when we look into the economics of maintaining each over time?

  • 2. Durable Construction Heavy-duty machines are built to last, often featuring a metal frame that provides stability and reduces vibrations during sewing. This sturdiness ensures more precise stitching, even at high speeds, making it easier for quilters to create intricate designs.


  • In conclusion, the leather machine needle is a vital component of any leather sewing machine. It is specifically designed to sew through the tough and thick material of leather efficiently and effectively. By choosing the right size and type of needle, and properly maintaining it, you can ensure high-quality stitches and durable results for your leather projects.
  • - Punching Holes Use an awl or punch to create evenly spaced holes along your seam, which will make sewing easier and more uniform.

  • What is an Overlocker?


  • Manual leather stitching machines have been favored by leatherworkers for generations due to their precision and control. Unlike modern electric machines, which can sometimes oversimplify the stitching process, manual machines allow artisans to tune their techniques to achieve exquisite results. This hands-on approach enables crafters to adapt to various leather thicknesses and types, ensuring that each project receives the attention it deserves.


  • Moreover, weather resistance is paramount in tent making. The stitching must be strong and secure to prevent leaks during rainy days. Consequently, the sewing machine should have options for various types of stitches, including straight, zigzag, and reinforced stitching.


  • One of the key benefits of domestic special sewing machines is their versatility. These machines are designed to handle a wide range of fabrics, from delicate silks to heavy denim. They come equipped with a variety of presser feet and stitch options that allow you to customize your sewing experience to suit your needs. Whether you are working on a garment, crafting a home décor item, or quilting a masterpiece, a domestic special sewing machine can help you achieve professional results.

  • In conclusion, the price of auto sewing machines varies widely based on several influential factors, including brand, features, build quality, user interface, and included accessories. Understanding these aspects is crucial for potential buyers to make informed decisions that align with their sewing needs and budgets. Whether you are a seasoned professional or a beginner, selecting the right auto sewing machine can enhance your sewing experience and enable you to create stunning garments and projects with ease. Investing in the right machine is not just a purchase; it's a commitment to cultivating your passion for sewing.


  • Machine for sewing leather bags also have adjustable tension settings, allowing the user to control the tightness of the stitches for different types of leather. This ensures that the seams are strong and durable, which is crucial for leather bags that are used frequently and need to withstand wear and tear.

  • In the world of industrial packaging, the way materials are secured and protected plays a crucial role in ensuring product integrity, safety, and efficiency during storage and transportation. One of the key innovations in this field is the use of jumbo bag lock stitch technology, which has become increasingly popular for large-scale packaging operations. This technique offers numerous benefits that enhance the performance and reliability of jumbo bags, commonly used for bulk materials such as grains, fertilizers, chemicals, and other industrial products.


  • The Impact on the Textile Industry


  • The PP bag silai machine is a transformative solution in the production of polypropylene bags, enhancing efficiency, quality, and sustainability. As industries increasingly shift towards eco-friendly practices, the demand for these machines is expected to rise. Investing in advanced sewing technology will not only improve manufacturing processes but also position businesses to meet the evolving needs of consumers and the environment. In summary, the PP bag silai machine stands at the forefront of industrial innovation, driving the future of packaging solutions.


  • Moreover, the automated features of woven sack sewing machines help reduce the risk of human error and ensure consistent quality in every sack produced. By eliminating manual stitching, these machines minimize the chances of mistakes and inconsistencies, resulting in uniform and professional-looking sacks every time.

  • In conclusion, the role of industrial sewing machines in auto upholstery is crucial. These machines are not just tools; they are an integral part of the manufacturing process, directly impacting the quality and durability of vehicle interiors. As the automotive industry continues to evolve, the advancement in sewing technology will undoubtedly keep pace, providing upholstery professionals with the means to meet consumer expectations for quality and craftsmanship. Investing in high-quality industrial sewing machines can help manufacturers improve efficiency, enhance product offerings, and ultimately elevate the consumer's driving experience.


  • One of the most appealing aspects of hook needle upholstery is the tactile experience it offers. The act of pulling yarn through fabric is not only satisfying but also allows for a meditative quality as artisans immerse themselves in the repetitive motions of the craft. Additionally, the end result is a unique piece of art that reflects the creator’s personal style and creativity, making each item one-of-a-kind.


    hook needle upholstery

    hook

  • Exploring the Versatility of Sewing Heavy Canvas


  • A double needle sewing machine is a specialized tool that offers a unique touch to sewing projects, adding a professional and decorative finish. The concept of a double needle might seem daunting to beginners, but it's actually quite simple and versatile once you understand its purpose and usage.

  • 2. Use a Walking Foot Some sewing machines may require you to purchase a separate walking foot attachment. Ensure that your machine is equipped with this foot to maximize its leather-sewing potential.