RefinedThe nylon fabric contains less miscellaneous, and the purpose of refined is to remove fiber in the process of spinning and weaving.The oil and other dirt. So often combine the retreat or cooking drift. Synthetic agents are commonly used in soap or synthetic detergent. For severe dirty, a smal Read More
Guide: PVA, that is, polyvinyl alcohol, is a material widely used in the 3D printing industry. It has the nature of solubility in water, so it can be used for the support of FDM printing. Read More
Traditional acid dyes refer to water-soluble dyes containing acid groups in the dye structure, and are usually dyed under acidic conditions. I. Overview of acid dyes1. History of acid dyes:In 1868, the earliest acid dye triarylmethane acid dye appeared, which had strong dyeing ability but poor fastn Read More
The sulphur dye has a history of more than a hundred years since its birth. The first sulfur dye was made by Croissant and Bretonniere in 1873. They will contain organic fibers, such as wood chips, bran, scrap cotton and waste. Paper and other sulfide and polysulfonal alkali are obtained. This dark Read More
1. Test method for yellowing caused by natural light exposure: GB/T 8427—2008 "Textile Color Fastness Tests to Artificial Light Color Fastness: Xenon Arc" The test principle is to combine the sample with a set of blue wool standard samples Put it in the box, expose it to the sun under the artificial Read More
Scientific name: polyvinolEnglish name: polyvinyl alcoholEnglish abbreviation: PVAPolyethylene (PVA) is made of ethyl acetate by polymerization and alcohol solution. Read More
1. Principles:① The three primary colors (yellow, red, blue) of color matching have the same and similar characteristicsFor example: use low-temperature three primary colors or medium-temperature three primary colors or high-temperature three primary colors, and more importantly, if you dye high-was Read More
Disperse dyes can be divided into three categories according to their heat resistance in application: 1. Low temperature type (E type)Low fastness to sublimation, good leveling performanceSuch as red-60#, blue-56#, yellow-54#, orange-25#, etc., because the molecular weight of these dyes is relativel Read More
Talc powder is a white powdery substance. Its main component is silicate. After purification, it is colorless and odorless. It can be used directly in medicine or in the processing of traditional Chinese medicine and cosmetics. It has a wide range of applications in daily life. Efficacy and function Read More
